n8n-editor-ui
Version:
Workflow Editor UI for n8n
10,959 lines • 349 kB
JavaScript
/*!
* @kurkle/color v0.3.2
* https://github.com/kurkle/color#readme
* (c) 2023 Jukka Kurkela
* Released under the MIT License
*/
function round(v) {
return v + .5 | 0;
}
var lim = (v, l, h) => Math.max(Math.min(v, h), l);
function p2b(v) {
return lim(round(v * 2.55), 0, 255);
}
function n2b(v) {
return lim(round(v * 255), 0, 255);
}
function b2n(v) {
return lim(round(v / 2.55) / 100, 0, 1);
}
function n2p(v) {
return lim(round(v * 100), 0, 100);
}
var map$1 = {
0: 0,
1: 1,
2: 2,
3: 3,
4: 4,
5: 5,
6: 6,
7: 7,
8: 8,
9: 9,
A: 10,
B: 11,
C: 12,
D: 13,
E: 14,
F: 15,
a: 10,
b: 11,
c: 12,
d: 13,
e: 14,
f: 15
};
var hex = [..."0123456789ABCDEF"];
var h1 = (b) => hex[b & 15];
var h2 = (b) => hex[(b & 240) >> 4] + hex[b & 15];
var eq = (b) => (b & 240) >> 4 === (b & 15);
var isShort = (v) => eq(v.r) && eq(v.g) && eq(v.b) && eq(v.a);
function hexParse(str) {
var len = str.length;
var ret;
if (str[0] === "#") {
if (len === 4 || len === 5) ret = {
r: 255 & map$1[str[1]] * 17,
g: 255 & map$1[str[2]] * 17,
b: 255 & map$1[str[3]] * 17,
a: len === 5 ? map$1[str[4]] * 17 : 255
};
else if (len === 7 || len === 9) ret = {
r: map$1[str[1]] << 4 | map$1[str[2]],
g: map$1[str[3]] << 4 | map$1[str[4]],
b: map$1[str[5]] << 4 | map$1[str[6]],
a: len === 9 ? map$1[str[7]] << 4 | map$1[str[8]] : 255
};
}
return ret;
}
var alpha = (a, f) => a < 255 ? f(a) : "";
function hexString(v) {
var f = isShort(v) ? h1 : h2;
return v ? "#" + f(v.r) + f(v.g) + f(v.b) + alpha(v.a, f) : void 0;
}
var HUE_RE = /^(hsla?|hwb|hsv)\(\s*([-+.e\d]+)(?:deg)?[\s,]+([-+.e\d]+)%[\s,]+([-+.e\d]+)%(?:[\s,]+([-+.e\d]+)(%)?)?\s*\)$/;
function hsl2rgbn(h, s, l) {
const a = s * Math.min(l, 1 - l);
const f = (n, k = (n + h / 30) % 12) => l - a * Math.max(Math.min(k - 3, 9 - k, 1), -1);
return [
f(0),
f(8),
f(4)
];
}
function hsv2rgbn(h, s, v) {
const f = (n, k = (n + h / 60) % 6) => v - v * s * Math.max(Math.min(k, 4 - k, 1), 0);
return [
f(5),
f(3),
f(1)
];
}
function hwb2rgbn(h, w, b) {
const rgb = hsl2rgbn(h, 1, .5);
let i;
if (w + b > 1) {
i = 1 / (w + b);
w *= i;
b *= i;
}
for (i = 0; i < 3; i++) {
rgb[i] *= 1 - w - b;
rgb[i] += w;
}
return rgb;
}
function hueValue(r, g, b, d, max) {
if (r === max) return (g - b) / d + (g < b ? 6 : 0);
if (g === max) return (b - r) / d + 2;
return (r - g) / d + 4;
}
function rgb2hsl(v) {
const range = 255;
const r = v.r / range;
const g = v.g / range;
const b = v.b / range;
const max = Math.max(r, g, b);
const min = Math.min(r, g, b);
const l = (max + min) / 2;
let h, s, d;
if (max !== min) {
d = max - min;
s = l > .5 ? d / (2 - max - min) : d / (max + min);
h = hueValue(r, g, b, d, max);
h = h * 60 + .5;
}
return [
h | 0,
s || 0,
l
];
}
function calln(f, a, b, c) {
return (Array.isArray(a) ? f(a[0], a[1], a[2]) : f(a, b, c)).map(n2b);
}
function hsl2rgb(h, s, l) {
return calln(hsl2rgbn, h, s, l);
}
function hwb2rgb(h, w, b) {
return calln(hwb2rgbn, h, w, b);
}
function hsv2rgb(h, s, v) {
return calln(hsv2rgbn, h, s, v);
}
function hue(h) {
return (h % 360 + 360) % 360;
}
function hueParse(str) {
const m = HUE_RE.exec(str);
let a = 255;
let v;
if (!m) return;
if (m[5] !== v) a = m[6] ? p2b(+m[5]) : n2b(+m[5]);
const h = hue(+m[2]);
const p1 = +m[3] / 100;
const p2 = +m[4] / 100;
if (m[1] === "hwb") v = hwb2rgb(h, p1, p2);
else if (m[1] === "hsv") v = hsv2rgb(h, p1, p2);
else v = hsl2rgb(h, p1, p2);
return {
r: v[0],
g: v[1],
b: v[2],
a
};
}
function rotate(v, deg) {
var h = rgb2hsl(v);
h[0] = hue(h[0] + deg);
h = hsl2rgb(h);
v.r = h[0];
v.g = h[1];
v.b = h[2];
}
function hslString(v) {
if (!v) return;
const a = rgb2hsl(v);
const h = a[0];
const s = n2p(a[1]);
const l = n2p(a[2]);
return v.a < 255 ? `hsla(${h}, ${s}%, ${l}%, ${b2n(v.a)})` : `hsl(${h}, ${s}%, ${l}%)`;
}
var map = {
x: "dark",
Z: "light",
Y: "re",
X: "blu",
W: "gr",
V: "medium",
U: "slate",
A: "ee",
T: "ol",
S: "or",
B: "ra",
C: "lateg",
D: "ights",
R: "in",
Q: "turquois",
E: "hi",
P: "ro",
O: "al",
N: "le",
M: "de",
L: "yello",
F: "en",
K: "ch",
G: "arks",
H: "ea",
I: "ightg",
J: "wh"
};
var names$1 = {
OiceXe: "f0f8ff",
antiquewEte: "faebd7",
aqua: "ffff",
aquamarRe: "7fffd4",
azuY: "f0ffff",
beige: "f5f5dc",
bisque: "ffe4c4",
black: "0",
blanKedOmond: "ffebcd",
Xe: "ff",
XeviTet: "8a2be2",
bPwn: "a52a2a",
burlywood: "deb887",
caMtXe: "5f9ea0",
KartYuse: "7fff00",
KocTate: "d2691e",
cSO: "ff7f50",
cSnflowerXe: "6495ed",
cSnsilk: "fff8dc",
crimson: "dc143c",
cyan: "ffff",
xXe: "8b",
xcyan: "8b8b",
xgTMnPd: "b8860b",
xWay: "a9a9a9",
xgYF: "6400",
xgYy: "a9a9a9",
xkhaki: "bdb76b",
xmagFta: "8b008b",
xTivegYF: "556b2f",
xSange: "ff8c00",
xScEd: "9932cc",
xYd: "8b0000",
xsOmon: "e9967a",
xsHgYF: "8fbc8f",
xUXe: "483d8b",
xUWay: "2f4f4f",
xUgYy: "2f4f4f",
xQe: "ced1",
xviTet: "9400d3",
dAppRk: "ff1493",
dApskyXe: "bfff",
dimWay: "696969",
dimgYy: "696969",
dodgerXe: "1e90ff",
fiYbrick: "b22222",
flSOwEte: "fffaf0",
foYstWAn: "228b22",
fuKsia: "ff00ff",
gaRsbSo: "dcdcdc",
ghostwEte: "f8f8ff",
gTd: "ffd700",
gTMnPd: "daa520",
Way: "808080",
gYF: "8000",
gYFLw: "adff2f",
gYy: "808080",
honeyMw: "f0fff0",
hotpRk: "ff69b4",
RdianYd: "cd5c5c",
Rdigo: "4b0082",
ivSy: "fffff0",
khaki: "f0e68c",
lavFMr: "e6e6fa",
lavFMrXsh: "fff0f5",
lawngYF: "7cfc00",
NmoncEffon: "fffacd",
ZXe: "add8e6",
ZcSO: "f08080",
Zcyan: "e0ffff",
ZgTMnPdLw: "fafad2",
ZWay: "d3d3d3",
ZgYF: "90ee90",
ZgYy: "d3d3d3",
ZpRk: "ffb6c1",
ZsOmon: "ffa07a",
ZsHgYF: "20b2aa",
ZskyXe: "87cefa",
ZUWay: "778899",
ZUgYy: "778899",
ZstAlXe: "b0c4de",
ZLw: "ffffe0",
lime: "ff00",
limegYF: "32cd32",
lRF: "faf0e6",
magFta: "ff00ff",
maPon: "800000",
VaquamarRe: "66cdaa",
VXe: "cd",
VScEd: "ba55d3",
VpurpN: "9370db",
VsHgYF: "3cb371",
VUXe: "7b68ee",
VsprRggYF: "fa9a",
VQe: "48d1cc",
VviTetYd: "c71585",
midnightXe: "191970",
mRtcYam: "f5fffa",
mistyPse: "ffe4e1",
moccasR: "ffe4b5",
navajowEte: "ffdead",
navy: "80",
Tdlace: "fdf5e6",
Tive: "808000",
TivedBb: "6b8e23",
Sange: "ffa500",
SangeYd: "ff4500",
ScEd: "da70d6",
pOegTMnPd: "eee8aa",
pOegYF: "98fb98",
pOeQe: "afeeee",
pOeviTetYd: "db7093",
papayawEp: "ffefd5",
pHKpuff: "ffdab9",
peru: "cd853f",
pRk: "ffc0cb",
plum: "dda0dd",
powMrXe: "b0e0e6",
purpN: "800080",
YbeccapurpN: "663399",
Yd: "ff0000",
Psybrown: "bc8f8f",
PyOXe: "4169e1",
saddNbPwn: "8b4513",
sOmon: "fa8072",
sandybPwn: "f4a460",
sHgYF: "2e8b57",
sHshell: "fff5ee",
siFna: "a0522d",
silver: "c0c0c0",
skyXe: "87ceeb",
UXe: "6a5acd",
UWay: "708090",
UgYy: "708090",
snow: "fffafa",
sprRggYF: "ff7f",
stAlXe: "4682b4",
tan: "d2b48c",
teO: "8080",
tEstN: "d8bfd8",
tomato: "ff6347",
Qe: "40e0d0",
viTet: "ee82ee",
JHt: "f5deb3",
wEte: "ffffff",
wEtesmoke: "f5f5f5",
Lw: "ffff00",
LwgYF: "9acd32"
};
function unpack() {
const unpacked = {};
const keys = Object.keys(names$1);
const tkeys = Object.keys(map);
let i, j, k, ok, nk;
for (i = 0; i < keys.length; i++) {
ok = nk = keys[i];
for (j = 0; j < tkeys.length; j++) {
k = tkeys[j];
nk = nk.replace(k, map[k]);
}
k = parseInt(names$1[ok], 16);
unpacked[nk] = [
k >> 16 & 255,
k >> 8 & 255,
k & 255
];
}
return unpacked;
}
var names;
function nameParse(str) {
if (!names) {
names = unpack();
names.transparent = [
0,
0,
0,
0
];
}
const a = names[str.toLowerCase()];
return a && {
r: a[0],
g: a[1],
b: a[2],
a: a.length === 4 ? a[3] : 255
};
}
var RGB_RE = /^rgba?\(\s*([-+.\d]+)(%)?[\s,]+([-+.e\d]+)(%)?[\s,]+([-+.e\d]+)(%)?(?:[\s,/]+([-+.e\d]+)(%)?)?\s*\)$/;
function rgbParse(str) {
const m = RGB_RE.exec(str);
let a = 255;
let r, g, b;
if (!m) return;
if (m[7] !== r) {
const v = +m[7];
a = m[8] ? p2b(v) : lim(v * 255, 0, 255);
}
r = +m[1];
g = +m[3];
b = +m[5];
r = 255 & (m[2] ? p2b(r) : lim(r, 0, 255));
g = 255 & (m[4] ? p2b(g) : lim(g, 0, 255));
b = 255 & (m[6] ? p2b(b) : lim(b, 0, 255));
return {
r,
g,
b,
a
};
}
function rgbString(v) {
return v && (v.a < 255 ? `rgba(${v.r}, ${v.g}, ${v.b}, ${b2n(v.a)})` : `rgb(${v.r}, ${v.g}, ${v.b})`);
}
var to = (v) => v <= .0031308 ? v * 12.92 : Math.pow(v, 1 / 2.4) * 1.055 - .055;
var from = (v) => v <= .04045 ? v / 12.92 : Math.pow((v + .055) / 1.055, 2.4);
function interpolate$1(rgb1, rgb2, t) {
const r = from(b2n(rgb1.r));
const g = from(b2n(rgb1.g));
const b = from(b2n(rgb1.b));
return {
r: n2b(to(r + t * (from(b2n(rgb2.r)) - r))),
g: n2b(to(g + t * (from(b2n(rgb2.g)) - g))),
b: n2b(to(b + t * (from(b2n(rgb2.b)) - b))),
a: rgb1.a + t * (rgb2.a - rgb1.a)
};
}
function modHSL(v, i, ratio) {
if (v) {
let tmp = rgb2hsl(v);
tmp[i] = Math.max(0, Math.min(tmp[i] + tmp[i] * ratio, i === 0 ? 360 : 1));
tmp = hsl2rgb(tmp);
v.r = tmp[0];
v.g = tmp[1];
v.b = tmp[2];
}
}
function clone$1(v, proto) {
return v ? Object.assign(proto || {}, v) : v;
}
function fromObject(input) {
var v = {
r: 0,
g: 0,
b: 0,
a: 255
};
if (Array.isArray(input)) {
if (input.length >= 3) {
v = {
r: input[0],
g: input[1],
b: input[2],
a: 255
};
if (input.length > 3) v.a = n2b(input[3]);
}
} else {
v = clone$1(input, {
r: 0,
g: 0,
b: 0,
a: 1
});
v.a = n2b(v.a);
}
return v;
}
function functionParse(str) {
if (str.charAt(0) === "r") return rgbParse(str);
return hueParse(str);
}
var Color = class Color {
constructor(input) {
if (input instanceof Color) return input;
const type = typeof input;
let v;
if (type === "object") v = fromObject(input);
else if (type === "string") v = hexParse(input) || nameParse(input) || functionParse(input);
this._rgb = v;
this._valid = !!v;
}
get valid() {
return this._valid;
}
get rgb() {
var v = clone$1(this._rgb);
if (v) v.a = b2n(v.a);
return v;
}
set rgb(obj) {
this._rgb = fromObject(obj);
}
rgbString() {
return this._valid ? rgbString(this._rgb) : void 0;
}
hexString() {
return this._valid ? hexString(this._rgb) : void 0;
}
hslString() {
return this._valid ? hslString(this._rgb) : void 0;
}
mix(color$1, weight) {
if (color$1) {
const c1 = this.rgb;
const c2 = color$1.rgb;
let w2;
const p = weight === w2 ? .5 : weight;
const w = 2 * p - 1;
const a = c1.a - c2.a;
const w1 = ((w * a === -1 ? w : (w + a) / (1 + w * a)) + 1) / 2;
w2 = 1 - w1;
c1.r = 255 & w1 * c1.r + w2 * c2.r + .5;
c1.g = 255 & w1 * c1.g + w2 * c2.g + .5;
c1.b = 255 & w1 * c1.b + w2 * c2.b + .5;
c1.a = p * c1.a + (1 - p) * c2.a;
this.rgb = c1;
}
return this;
}
interpolate(color$1, t) {
if (color$1) this._rgb = interpolate$1(this._rgb, color$1._rgb, t);
return this;
}
clone() {
return new Color(this.rgb);
}
alpha(a) {
this._rgb.a = n2b(a);
return this;
}
clearer(ratio) {
const rgb = this._rgb;
rgb.a *= 1 - ratio;
return this;
}
greyscale() {
const rgb = this._rgb;
rgb.r = rgb.g = rgb.b = round(rgb.r * .3 + rgb.g * .59 + rgb.b * .11);
return this;
}
opaquer(ratio) {
const rgb = this._rgb;
rgb.a *= 1 + ratio;
return this;
}
negate() {
const v = this._rgb;
v.r = 255 - v.r;
v.g = 255 - v.g;
v.b = 255 - v.b;
return this;
}
lighten(ratio) {
modHSL(this._rgb, 2, ratio);
return this;
}
darken(ratio) {
modHSL(this._rgb, 2, -ratio);
return this;
}
saturate(ratio) {
modHSL(this._rgb, 1, ratio);
return this;
}
desaturate(ratio) {
modHSL(this._rgb, 1, -ratio);
return this;
}
rotate(deg) {
rotate(this._rgb, deg);
return this;
}
};
function noop() {}
var uid = (() => {
let id = 0;
return () => id++;
})();
function isNullOrUndef(value) {
return value === null || typeof value === "undefined";
}
function isArray(value) {
if (Array.isArray && Array.isArray(value)) return true;
const type = Object.prototype.toString.call(value);
if (type.slice(0, 7) === "[object" && type.slice(-6) === "Array]") return true;
return false;
}
function isObject(value) {
return value !== null && Object.prototype.toString.call(value) === "[object Object]";
}
function isNumberFinite(value) {
return (typeof value === "number" || value instanceof Number) && isFinite(+value);
}
function finiteOrDefault(value, defaultValue) {
return isNumberFinite(value) ? value : defaultValue;
}
function valueOrDefault(value, defaultValue) {
return typeof value === "undefined" ? defaultValue : value;
}
var toDimension = (value, dimension) => typeof value === "string" && value.endsWith("%") ? parseFloat(value) / 100 * dimension : +value;
function callback(fn, args, thisArg) {
if (fn && typeof fn.call === "function") return fn.apply(thisArg, args);
}
function each(loopable, fn, thisArg, reverse) {
let i, len, keys;
if (isArray(loopable)) {
len = loopable.length;
if (reverse) for (i = len - 1; i >= 0; i--) fn.call(thisArg, loopable[i], i);
else for (i = 0; i < len; i++) fn.call(thisArg, loopable[i], i);
} else if (isObject(loopable)) {
keys = Object.keys(loopable);
len = keys.length;
for (i = 0; i < len; i++) fn.call(thisArg, loopable[keys[i]], keys[i]);
}
}
function _elementsEqual(a0, a1) {
let i, ilen, v0, v1;
if (!a0 || !a1 || a0.length !== a1.length) return false;
for (i = 0, ilen = a0.length; i < ilen; ++i) {
v0 = a0[i];
v1 = a1[i];
if (v0.datasetIndex !== v1.datasetIndex || v0.index !== v1.index) return false;
}
return true;
}
function clone(source) {
if (isArray(source)) return source.map(clone);
if (isObject(source)) {
const target = Object.create(null);
const keys = Object.keys(source);
const klen = keys.length;
let k = 0;
for (; k < klen; ++k) target[keys[k]] = clone(source[keys[k]]);
return target;
}
return source;
}
function isValidKey(key) {
return [
"__proto__",
"prototype",
"constructor"
].indexOf(key) === -1;
}
function _merger(key, target, source, options) {
if (!isValidKey(key)) return;
const tval = target[key];
const sval = source[key];
if (isObject(tval) && isObject(sval)) merge(tval, sval, options);
else target[key] = clone(sval);
}
function merge(target, source, options) {
const sources = isArray(source) ? source : [source];
const ilen = sources.length;
if (!isObject(target)) return target;
options = options || {};
const merger = options.merger || _merger;
let current;
for (let i = 0; i < ilen; ++i) {
current = sources[i];
if (!isObject(current)) continue;
const keys = Object.keys(current);
for (let k = 0, klen = keys.length; k < klen; ++k) merger(keys[k], target, current, options);
}
return target;
}
function mergeIf(target, source) {
return merge(target, source, { merger: _mergerIf });
}
function _mergerIf(key, target, source) {
if (!isValidKey(key)) return;
const tval = target[key];
const sval = source[key];
if (isObject(tval) && isObject(sval)) mergeIf(tval, sval);
else if (!Object.prototype.hasOwnProperty.call(target, key)) target[key] = clone(sval);
}
var keyResolvers = {
"": (v) => v,
x: (o) => o.x,
y: (o) => o.y
};
function _splitKey(key) {
const parts = key.split(".");
const keys = [];
let tmp = "";
for (const part of parts) {
tmp += part;
if (tmp.endsWith("\\")) tmp = tmp.slice(0, -1) + ".";
else {
keys.push(tmp);
tmp = "";
}
}
return keys;
}
function _getKeyResolver(key) {
const keys = _splitKey(key);
return (obj) => {
for (const k of keys) {
if (k === "") break;
obj = obj && obj[k];
}
return obj;
};
}
function resolveObjectKey(obj, key) {
return (keyResolvers[key] || (keyResolvers[key] = _getKeyResolver(key)))(obj);
}
function _capitalize(str) {
return str.charAt(0).toUpperCase() + str.slice(1);
}
var defined = (value) => typeof value !== "undefined";
var isFunction = (value) => typeof value === "function";
var setsEqual = (a, b) => {
if (a.size !== b.size) return false;
for (const item of a) if (!b.has(item)) return false;
return true;
};
function _isClickEvent(e) {
return e.type === "mouseup" || e.type === "click" || e.type === "contextmenu";
}
var PI = Math.PI;
var TAU = 2 * PI;
var PITAU = TAU + PI;
var INFINITY = Number.POSITIVE_INFINITY;
var RAD_PER_DEG = PI / 180;
var HALF_PI = PI / 2;
var QUARTER_PI = PI / 4;
var TWO_THIRDS_PI = PI * 2 / 3;
var log10 = Math.log10;
var sign = Math.sign;
function almostEquals(x, y, epsilon) {
return Math.abs(x - y) < epsilon;
}
function niceNum(range) {
const roundedRange = Math.round(range);
range = almostEquals(range, roundedRange, range / 1e3) ? roundedRange : range;
const niceRange = Math.pow(10, Math.floor(log10(range)));
const fraction = range / niceRange;
return (fraction <= 1 ? 1 : fraction <= 2 ? 2 : fraction <= 5 ? 5 : 10) * niceRange;
}
function _factorize(value) {
const result = [];
const sqrt = Math.sqrt(value);
let i;
for (i = 1; i < sqrt; i++) if (value % i === 0) {
result.push(i);
result.push(value / i);
}
if (sqrt === (sqrt | 0)) result.push(sqrt);
result.sort((a, b) => a - b).pop();
return result;
}
function isNumber(n) {
return !isNaN(parseFloat(n)) && isFinite(n);
}
function almostWhole(x, epsilon) {
const rounded = Math.round(x);
return rounded - epsilon <= x && rounded + epsilon >= x;
}
function _setMinAndMaxByKey(array, target, property) {
let i, ilen, value;
for (i = 0, ilen = array.length; i < ilen; i++) {
value = array[i][property];
if (!isNaN(value)) {
target.min = Math.min(target.min, value);
target.max = Math.max(target.max, value);
}
}
}
function toRadians(degrees) {
return degrees * (PI / 180);
}
function toDegrees(radians) {
return radians * (180 / PI);
}
function _decimalPlaces(x) {
if (!isNumberFinite(x)) return;
let e = 1;
let p = 0;
while (Math.round(x * e) / e !== x) {
e *= 10;
p++;
}
return p;
}
function getAngleFromPoint(centrePoint, anglePoint) {
const distanceFromXCenter = anglePoint.x - centrePoint.x;
const distanceFromYCenter = anglePoint.y - centrePoint.y;
const radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter);
let angle = Math.atan2(distanceFromYCenter, distanceFromXCenter);
if (angle < -.5 * PI) angle += TAU;
return {
angle,
distance: radialDistanceFromCenter
};
}
function distanceBetweenPoints(pt1, pt2) {
return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2));
}
function _angleDiff(a, b) {
return (a - b + PITAU) % TAU - PI;
}
function _normalizeAngle(a) {
return (a % TAU + TAU) % TAU;
}
function _angleBetween(angle, start, end, sameAngleIsFullCircle) {
const a = _normalizeAngle(angle);
const s = _normalizeAngle(start);
const e = _normalizeAngle(end);
const angleToStart = _normalizeAngle(s - a);
const angleToEnd = _normalizeAngle(e - a);
const startToAngle = _normalizeAngle(a - s);
const endToAngle = _normalizeAngle(a - e);
return a === s || a === e || sameAngleIsFullCircle && s === e || angleToStart > angleToEnd && startToAngle < endToAngle;
}
function _limitValue(value, min, max) {
return Math.max(min, Math.min(max, value));
}
function _int16Range(value) {
return _limitValue(value, -32768, 32767);
}
function _isBetween(value, start, end, epsilon = 1e-6) {
return value >= Math.min(start, end) - epsilon && value <= Math.max(start, end) + epsilon;
}
function _lookup(table, value, cmp) {
cmp = cmp || ((index$1) => table[index$1] < value);
let hi = table.length - 1;
let lo = 0;
let mid;
while (hi - lo > 1) {
mid = lo + hi >> 1;
if (cmp(mid)) lo = mid;
else hi = mid;
}
return {
lo,
hi
};
}
var _lookupByKey = (table, key, value, last) => _lookup(table, value, last ? (index$1) => {
const ti = table[index$1][key];
return ti < value || ti === value && table[index$1 + 1][key] === value;
} : (index$1) => table[index$1][key] < value);
var _rlookupByKey = (table, key, value) => _lookup(table, value, (index$1) => table[index$1][key] >= value);
function _filterBetween(values, min, max) {
let start = 0;
let end = values.length;
while (start < end && values[start] < min) start++;
while (end > start && values[end - 1] > max) end--;
return start > 0 || end < values.length ? values.slice(start, end) : values;
}
var arrayEvents = [
"push",
"pop",
"shift",
"splice",
"unshift"
];
function listenArrayEvents(array, listener) {
if (array._chartjs) {
array._chartjs.listeners.push(listener);
return;
}
Object.defineProperty(array, "_chartjs", {
configurable: true,
enumerable: false,
value: { listeners: [listener] }
});
arrayEvents.forEach((key) => {
const method = "_onData" + _capitalize(key);
const base = array[key];
Object.defineProperty(array, key, {
configurable: true,
enumerable: false,
value(...args) {
const res = base.apply(this, args);
array._chartjs.listeners.forEach((object) => {
if (typeof object[method] === "function") object[method](...args);
});
return res;
}
});
});
}
function unlistenArrayEvents(array, listener) {
const stub = array._chartjs;
if (!stub) return;
const listeners = stub.listeners;
const index$1 = listeners.indexOf(listener);
if (index$1 !== -1) listeners.splice(index$1, 1);
if (listeners.length > 0) return;
arrayEvents.forEach((key) => {
delete array[key];
});
delete array._chartjs;
}
function _arrayUnique(items) {
const set$1 = new Set(items);
if (set$1.size === items.length) return items;
return Array.from(set$1);
}
var requestAnimFrame = function() {
if (typeof window === "undefined") return function(callback$1) {
return callback$1();
};
return window.requestAnimationFrame;
}();
function throttled(fn, thisArg) {
let argsToUse = [];
let ticking = false;
return function(...args) {
argsToUse = args;
if (!ticking) {
ticking = true;
requestAnimFrame.call(window, () => {
ticking = false;
fn.apply(thisArg, argsToUse);
});
}
};
}
function debounce(fn, delay) {
let timeout;
return function(...args) {
if (delay) {
clearTimeout(timeout);
timeout = setTimeout(fn, delay, args);
} else fn.apply(this, args);
return delay;
};
}
var _toLeftRightCenter = (align) => align === "start" ? "left" : align === "end" ? "right" : "center";
var _alignStartEnd = (align, start, end) => align === "start" ? start : align === "end" ? end : (start + end) / 2;
var _textX = (align, left, right, rtl) => {
return align === (rtl ? "left" : "right") ? right : align === "center" ? (left + right) / 2 : left;
};
function _getStartAndCountOfVisiblePoints(meta, points, animationsDisabled) {
const pointCount = points.length;
let start = 0;
let count = pointCount;
if (meta._sorted) {
const { iScale, _parsed } = meta;
const axis = iScale.axis;
const { min, max, minDefined, maxDefined } = iScale.getUserBounds();
if (minDefined) start = _limitValue(Math.min(_lookupByKey(_parsed, axis, min).lo, animationsDisabled ? pointCount : _lookupByKey(points, axis, iScale.getPixelForValue(min)).lo), 0, pointCount - 1);
if (maxDefined) count = _limitValue(Math.max(_lookupByKey(_parsed, iScale.axis, max, true).hi + 1, animationsDisabled ? 0 : _lookupByKey(points, axis, iScale.getPixelForValue(max), true).hi + 1), start, pointCount) - start;
else count = pointCount - start;
}
return {
start,
count
};
}
function _scaleRangesChanged(meta) {
const { xScale, yScale, _scaleRanges } = meta;
const newRanges = {
xmin: xScale.min,
xmax: xScale.max,
ymin: yScale.min,
ymax: yScale.max
};
if (!_scaleRanges) {
meta._scaleRanges = newRanges;
return true;
}
const changed = _scaleRanges.xmin !== xScale.min || _scaleRanges.xmax !== xScale.max || _scaleRanges.ymin !== yScale.min || _scaleRanges.ymax !== yScale.max;
Object.assign(_scaleRanges, newRanges);
return changed;
}
var atEdge = (t) => t === 0 || t === 1;
var elasticIn = (t, s, p) => -(Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * TAU / p));
var elasticOut = (t, s, p) => Math.pow(2, -10 * t) * Math.sin((t - s) * TAU / p) + 1;
var effects = {
linear: (t) => t,
easeInQuad: (t) => t * t,
easeOutQuad: (t) => -t * (t - 2),
easeInOutQuad: (t) => (t /= .5) < 1 ? .5 * t * t : -.5 * (--t * (t - 2) - 1),
easeInCubic: (t) => t * t * t,
easeOutCubic: (t) => (t -= 1) * t * t + 1,
easeInOutCubic: (t) => (t /= .5) < 1 ? .5 * t * t * t : .5 * ((t -= 2) * t * t + 2),
easeInQuart: (t) => t * t * t * t,
easeOutQuart: (t) => -((t -= 1) * t * t * t - 1),
easeInOutQuart: (t) => (t /= .5) < 1 ? .5 * t * t * t * t : -.5 * ((t -= 2) * t * t * t - 2),
easeInQuint: (t) => t * t * t * t * t,
easeOutQuint: (t) => (t -= 1) * t * t * t * t + 1,
easeInOutQuint: (t) => (t /= .5) < 1 ? .5 * t * t * t * t * t : .5 * ((t -= 2) * t * t * t * t + 2),
easeInSine: (t) => -Math.cos(t * HALF_PI) + 1,
easeOutSine: (t) => Math.sin(t * HALF_PI),
easeInOutSine: (t) => -.5 * (Math.cos(PI * t) - 1),
easeInExpo: (t) => t === 0 ? 0 : Math.pow(2, 10 * (t - 1)),
easeOutExpo: (t) => t === 1 ? 1 : -Math.pow(2, -10 * t) + 1,
easeInOutExpo: (t) => atEdge(t) ? t : t < .5 ? .5 * Math.pow(2, 10 * (t * 2 - 1)) : .5 * (-Math.pow(2, -10 * (t * 2 - 1)) + 2),
easeInCirc: (t) => t >= 1 ? t : -(Math.sqrt(1 - t * t) - 1),
easeOutCirc: (t) => Math.sqrt(1 - (t -= 1) * t),
easeInOutCirc: (t) => (t /= .5) < 1 ? -.5 * (Math.sqrt(1 - t * t) - 1) : .5 * (Math.sqrt(1 - (t -= 2) * t) + 1),
easeInElastic: (t) => atEdge(t) ? t : elasticIn(t, .075, .3),
easeOutElastic: (t) => atEdge(t) ? t : elasticOut(t, .075, .3),
easeInOutElastic(t) {
const s = .1125;
const p = .45;
return atEdge(t) ? t : t < .5 ? .5 * elasticIn(t * 2, s, p) : .5 + .5 * elasticOut(t * 2 - 1, s, p);
},
easeInBack(t) {
const s = 1.70158;
return t * t * ((s + 1) * t - s);
},
easeOutBack(t) {
const s = 1.70158;
return (t -= 1) * t * ((s + 1) * t + s) + 1;
},
easeInOutBack(t) {
let s = 1.70158;
if ((t /= .5) < 1) return .5 * (t * t * (((s *= 1.525) + 1) * t - s));
return .5 * ((t -= 2) * t * (((s *= 1.525) + 1) * t + s) + 2);
},
easeInBounce: (t) => 1 - effects.easeOutBounce(1 - t),
easeOutBounce(t) {
const m = 7.5625;
const d = 2.75;
if (t < 1 / d) return m * t * t;
if (t < 2 / d) return m * (t -= 1.5 / d) * t + .75;
if (t < 2.5 / d) return m * (t -= 2.25 / d) * t + .9375;
return m * (t -= 2.625 / d) * t + .984375;
},
easeInOutBounce: (t) => t < .5 ? effects.easeInBounce(t * 2) * .5 : effects.easeOutBounce(t * 2 - 1) * .5 + .5
};
function isPatternOrGradient(value) {
if (value && typeof value === "object") {
const type = value.toString();
return type === "[object CanvasPattern]" || type === "[object CanvasGradient]";
}
return false;
}
function color(value) {
return isPatternOrGradient(value) ? value : new Color(value);
}
function getHoverColor(value) {
return isPatternOrGradient(value) ? value : new Color(value).saturate(.5).darken(.1).hexString();
}
var numbers = [
"x",
"y",
"borderWidth",
"radius",
"tension"
];
var colors = [
"color",
"borderColor",
"backgroundColor"
];
function applyAnimationsDefaults(defaults$1) {
defaults$1.set("animation", {
delay: void 0,
duration: 1e3,
easing: "easeOutQuart",
fn: void 0,
from: void 0,
loop: void 0,
to: void 0,
type: void 0
});
defaults$1.describe("animation", {
_fallback: false,
_indexable: false,
_scriptable: (name) => name !== "onProgress" && name !== "onComplete" && name !== "fn"
});
defaults$1.set("animations", {
colors: {
type: "color",
properties: colors
},
numbers: {
type: "number",
properties: numbers
}
});
defaults$1.describe("animations", { _fallback: "animation" });
defaults$1.set("transitions", {
active: { animation: { duration: 400 } },
resize: { animation: { duration: 0 } },
show: { animations: {
colors: { from: "transparent" },
visible: {
type: "boolean",
duration: 0
}
} },
hide: { animations: {
colors: { to: "transparent" },
visible: {
type: "boolean",
easing: "linear",
fn: (v) => v | 0
}
} }
});
}
function applyLayoutsDefaults(defaults$1) {
defaults$1.set("layout", {
autoPadding: true,
padding: {
top: 0,
right: 0,
bottom: 0,
left: 0
}
});
}
var intlCache = /* @__PURE__ */ new Map();
function getNumberFormat(locale, options) {
options = options || {};
const cacheKey = locale + JSON.stringify(options);
let formatter = intlCache.get(cacheKey);
if (!formatter) {
formatter = new Intl.NumberFormat(locale, options);
intlCache.set(cacheKey, formatter);
}
return formatter;
}
function formatNumber(num, locale, options) {
return getNumberFormat(locale, options).format(num);
}
var formatters = {
values(value) {
return isArray(value) ? value : "" + value;
},
numeric(tickValue, index$1, ticks) {
if (tickValue === 0) return "0";
const locale = this.chart.options.locale;
let notation;
let delta = tickValue;
if (ticks.length > 1) {
const maxTick = Math.max(Math.abs(ticks[0].value), Math.abs(ticks[ticks.length - 1].value));
if (maxTick < 1e-4 || maxTick > 0x38d7ea4c68000) notation = "scientific";
delta = calculateDelta(tickValue, ticks);
}
const logDelta = log10(Math.abs(delta));
const numDecimal = isNaN(logDelta) ? 1 : Math.max(Math.min(-1 * Math.floor(logDelta), 20), 0);
const options = {
notation,
minimumFractionDigits: numDecimal,
maximumFractionDigits: numDecimal
};
Object.assign(options, this.options.ticks.format);
return formatNumber(tickValue, locale, options);
},
logarithmic(tickValue, index$1, ticks) {
if (tickValue === 0) return "0";
const remain = ticks[index$1].significand || tickValue / Math.pow(10, Math.floor(log10(tickValue)));
if ([
1,
2,
3,
5,
10,
15
].includes(remain) || index$1 > .8 * ticks.length) return formatters.numeric.call(this, tickValue, index$1, ticks);
return "";
}
};
function calculateDelta(tickValue, ticks) {
let delta = ticks.length > 3 ? ticks[2].value - ticks[1].value : ticks[1].value - ticks[0].value;
if (Math.abs(delta) >= 1 && tickValue !== Math.floor(tickValue)) delta = tickValue - Math.floor(tickValue);
return delta;
}
var Ticks = { formatters };
function applyScaleDefaults(defaults$1) {
defaults$1.set("scale", {
display: true,
offset: false,
reverse: false,
beginAtZero: false,
bounds: "ticks",
clip: true,
grace: 0,
grid: {
display: true,
lineWidth: 1,
drawOnChartArea: true,
drawTicks: true,
tickLength: 8,
tickWidth: (_ctx, options) => options.lineWidth,
tickColor: (_ctx, options) => options.color,
offset: false
},
border: {
display: true,
dash: [],
dashOffset: 0,
width: 1
},
title: {
display: false,
text: "",
padding: {
top: 4,
bottom: 4
}
},
ticks: {
minRotation: 0,
maxRotation: 50,
mirror: false,
textStrokeWidth: 0,
textStrokeColor: "",
padding: 3,
display: true,
autoSkip: true,
autoSkipPadding: 3,
labelOffset: 0,
callback: Ticks.formatters.values,
minor: {},
major: {},
align: "center",
crossAlign: "near",
showLabelBackdrop: false,
backdropColor: "rgba(255, 255, 255, 0.75)",
backdropPadding: 2
}
});
defaults$1.route("scale.ticks", "color", "", "color");
defaults$1.route("scale.grid", "color", "", "borderColor");
defaults$1.route("scale.border", "color", "", "borderColor");
defaults$1.route("scale.title", "color", "", "color");
defaults$1.describe("scale", {
_fallback: false,
_scriptable: (name) => !name.startsWith("before") && !name.startsWith("after") && name !== "callback" && name !== "parser",
_indexable: (name) => name !== "borderDash" && name !== "tickBorderDash" && name !== "dash"
});
defaults$1.describe("scales", { _fallback: "scale" });
defaults$1.describe("scale.ticks", {
_scriptable: (name) => name !== "backdropPadding" && name !== "callback",
_indexable: (name) => name !== "backdropPadding"
});
}
var overrides = Object.create(null);
var descriptors = Object.create(null);
function getScope$1(node, key) {
if (!key) return node;
const keys = key.split(".");
for (let i = 0, n = keys.length; i < n; ++i) {
const k = keys[i];
node = node[k] || (node[k] = Object.create(null));
}
return node;
}
function set(root, scope, values) {
if (typeof scope === "string") return merge(getScope$1(root, scope), values);
return merge(getScope$1(root, ""), scope);
}
var Defaults = class {
constructor(_descriptors$1, _appliers) {
this.animation = void 0;
this.backgroundColor = "rgba(0,0,0,0.1)";
this.borderColor = "rgba(0,0,0,0.1)";
this.color = "#666";
this.datasets = {};
this.devicePixelRatio = (context) => context.chart.platform.getDevicePixelRatio();
this.elements = {};
this.events = [
"mousemove",
"mouseout",
"click",
"touchstart",
"touchmove"
];
this.font = {
family: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif",
size: 12,
style: "normal",
lineHeight: 1.2,
weight: null
};
this.hover = {};
this.hoverBackgroundColor = (ctx, options) => getHoverColor(options.backgroundColor);
this.hoverBorderColor = (ctx, options) => getHoverColor(options.borderColor);
this.hoverColor = (ctx, options) => getHoverColor(options.color);
this.indexAxis = "x";
this.interaction = {
mode: "nearest",
intersect: true,
includeInvisible: false
};
this.maintainAspectRatio = true;
this.onHover = null;
this.onClick = null;
this.parsing = true;
this.plugins = {};
this.responsive = true;
this.scale = void 0;
this.scales = {};
this.showLine = true;
this.drawActiveElementsOnTop = true;
this.describe(_descriptors$1);
this.apply(_appliers);
}
set(scope, values) {
return set(this, scope, values);
}
get(scope) {
return getScope$1(this, scope);
}
describe(scope, values) {
return set(descriptors, scope, values);
}
override(scope, values) {
return set(overrides, scope, values);
}
route(scope, name, targetScope, targetName) {
const scopeObject = getScope$1(this, scope);
const targetScopeObject = getScope$1(this, targetScope);
const privateName = "_" + name;
Object.defineProperties(scopeObject, {
[privateName]: {
value: scopeObject[name],
writable: true
},
[name]: {
enumerable: true,
get() {
const local = this[privateName];
const target = targetScopeObject[targetName];
if (isObject(local)) return Object.assign({}, target, local);
return valueOrDefault(local, target);
},
set(value) {
this[privateName] = value;
}
}
});
}
apply(appliers) {
appliers.forEach((apply) => apply(this));
}
};
var defaults = /* @__PURE__ */ new Defaults({
_scriptable: (name) => !name.startsWith("on"),
_indexable: (name) => name !== "events",
hover: { _fallback: "interaction" },
interaction: {
_scriptable: false,
_indexable: false
}
}, [
applyAnimationsDefaults,
applyLayoutsDefaults,
applyScaleDefaults
]);
function toFontString(font) {
if (!font || isNullOrUndef(font.size) || isNullOrUndef(font.family)) return null;
return (font.style ? font.style + " " : "") + (font.weight ? font.weight + " " : "") + font.size + "px " + font.family;
}
function _measureText(ctx, data, gc, longest, string) {
let textWidth = data[string];
if (!textWidth) {
textWidth = data[string] = ctx.measureText(string).width;
gc.push(string);
}
if (textWidth > longest) longest = textWidth;
return longest;
}
function _longestText(ctx, font, arrayOfThings, cache) {
cache = cache || {};
let data = cache.data = cache.data || {};
let gc = cache.garbageCollect = cache.garbageCollect || [];
if (cache.font !== font) {
data = cache.data = {};
gc = cache.garbageCollect = [];
cache.font = font;
}
ctx.save();
ctx.font = font;
let longest = 0;
const ilen = arrayOfThings.length;
let i, j, jlen, thing, nestedThing;
for (i = 0; i < ilen; i++) {
thing = arrayOfThings[i];
if (thing !== void 0 && thing !== null && !isArray(thing)) longest = _measureText(ctx, data, gc, longest, thing);
else if (isArray(thing)) for (j = 0, jlen = thing.length; j < jlen; j++) {
nestedThing = thing[j];
if (nestedThing !== void 0 && nestedThing !== null && !isArray(nestedThing)) longest = _measureText(ctx, data, gc, longest, nestedThing);
}
}
ctx.restore();
const gcLen = gc.length / 2;
if (gcLen > arrayOfThings.length) {
for (i = 0; i < gcLen; i++) delete data[gc[i]];
gc.splice(0, gcLen);
}
return longest;
}
function _alignPixel(chart, pixel, width) {
const devicePixelRatio = chart.currentDevicePixelRatio;
const halfWidth = width !== 0 ? Math.max(width / 2, .5) : 0;
return Math.round((pixel - halfWidth) * devicePixelRatio) / devicePixelRatio + halfWidth;
}
function clearCanvas(canvas, ctx) {
ctx = ctx || canvas.getContext("2d");
ctx.save();
ctx.resetTransform();
ctx.clearRect(0, 0, canvas.width, canvas.height);
ctx.restore();
}
function drawPoint(ctx, options, x, y) {
drawPointLegend(ctx, options, x, y, null);
}
function drawPointLegend(ctx, options, x, y, w) {
let type, xOffset, yOffset, size, cornerRadius, width, xOffsetW, yOffsetW;
const style = options.pointStyle;
const rotation = options.rotation;
const radius = options.radius;
let rad = (rotation || 0) * RAD_PER_DEG;
if (style && typeof style === "object") {
type = style.toString();
if (type === "[object HTMLImageElement]" || type === "[object HTMLCanvasElement]") {
ctx.save();
ctx.translate(x, y);
ctx.rotate(rad);
ctx.drawImage(style, -style.width / 2, -style.height / 2, style.width, style.height);
ctx.restore();
return;
}
}
if (isNaN(radius) || radius <= 0) return;
ctx.beginPath();
switch (style) {
default:
if (w) ctx.ellipse(x, y, w / 2, radius, 0, 0, TAU);
else ctx.arc(x, y, radius, 0, TAU);
ctx.closePath();
break;
case "triangle":
width = w ? w / 2 : radius;
ctx.moveTo(x + Math.sin(rad) * width, y - Math.cos(rad) * radius);
rad += TWO_THIRDS_PI;
ctx.lineTo(x + Math.sin(rad) * width, y - Math.cos(rad) * radius);
rad += TWO_THIRDS_PI;
ctx.lineTo(x + Math.sin(rad) * width, y - Math.cos(rad) * radius);
ctx.closePath();
break;
case "rectRounded":
cornerRadius = radius * .516;
size = radius - cornerRadius;
xOffset = Math.cos(rad + QUARTER_PI) * size;
xOffsetW = Math.cos(rad + QUARTER_PI) * (w ? w / 2 - cornerRadius : size);
yOffset = Math.sin(rad + QUARTER_PI) * size;
yOffsetW = Math.sin(rad + QUARTER_PI) * (w ? w / 2 - cornerRadius : size);
ctx.arc(x - xOffsetW, y - yOffset, cornerRadius, rad - PI, rad - HALF_PI);
ctx.arc(x + yOffsetW, y - xOffset, cornerRadius, rad - HALF_PI, rad);
ctx.arc(x + xOffsetW, y + yOffset, cornerRadius, rad, rad + HALF_PI);
ctx.arc(x - yOffsetW, y + xOffset, cornerRadius, rad + HALF_PI, rad + PI);
ctx.closePath();
break;
case "rect":
if (!rotation) {
size = Math.SQRT1_2 * radius;
width = w ? w / 2 : size;
ctx.rect(x - width, y - size, 2 * width, 2 * size);
break;
}
rad += QUARTER_PI;
case "rectRot":
xOffsetW = Math.cos(rad) * (w ? w / 2 : radius);
xOffset = Math.cos(rad) * radius;
yOffset = Math.sin(rad) * radius;
yOffsetW = Math.sin(rad) * (w ? w / 2 : radius);
ctx.moveTo(x - xOffsetW, y - yOffset);
ctx.lineTo(x + yOffsetW, y - xOffset);
ctx.lineTo(x + xOffsetW, y + yOffset);
ctx.lineTo(x - yOffsetW, y + xOffset);
ctx.closePath();
break;
case "crossRot": rad += QUARTER_PI;
case "cross":
xOffsetW = Math.cos(rad) * (w ? w / 2 : radius);
xOffset = Math.cos(rad) * radius;
yOffset = Math.sin(rad) * radius;
yOffsetW = Math.sin(rad) * (w ? w / 2 : radius);
ctx.moveTo(x - xOffsetW, y - yOffset);
ctx.lineTo(x + xOffsetW, y + yOffset);
ctx.moveTo(x + yOffsetW, y - xOffset);
ctx.lineTo(x - yOffsetW, y + xOffset);
break;
case "star":
xOffsetW = Math.cos(rad) * (w ? w / 2 : radius);
xOffset = Math.cos(rad) * radius;
yOffset = Math.sin(rad) * radius;
yOffsetW = Math.sin(rad) * (w ? w / 2 : radius);
ctx.moveTo(x - xOffsetW, y - yOffset);
ctx.lineTo(x + xOffsetW, y + yOffset);
ctx.moveTo(x + yOffsetW, y - xOffset);
ctx.lineTo(x - yOffsetW, y + xOffset);
rad += QUARTER_PI;
xOffsetW = Math.cos(rad) * (w ? w / 2 : radius);
xOffset = Math.cos(rad) * radius;
yOffset = Math.sin(rad) * radius;
yOffsetW = Math.sin(rad) * (w ? w / 2 : radius);
ctx.moveTo(x - xOffsetW, y - yOffset);
ctx.lineTo(x + xOffsetW, y + yOffset);
ctx.moveTo(x + yOffsetW, y - xOffset);
ctx.lineTo(x - yOffsetW, y + xOffset);
break;
case "line":
xOffset = w ? w / 2 : Math.cos(rad) * radius;
yOffset = Math.sin(rad) * radius;
ctx.moveTo(x - xOffset, y - yOffset);
ctx.lineTo(x + xOffset, y + yOffset);
break;
case "dash":
ctx.moveTo(x, y);
ctx.lineTo(x + Math.cos(rad) * (w ? w / 2 : radius), y + Math.sin(rad) * radius);
break;
case false:
ctx.closePath();
break;
}
ctx.fill();
if (options.borderWidth > 0) ctx.stroke();
}
function _isPointInArea(point, area, margin) {
margin = margin || .5;
return !area || point && point.x > area.left - margin && point.x < area.right + margin && point.y > area.top - margin && point.y < area.bottom + margin;
}
function clipArea(ctx, area) {
ctx.save();
ctx.beginPath();
ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top);
ctx.clip();
}
function unclipArea(ctx) {
ctx.restore();
}
function _steppedLineTo(ctx, previous, target, flip, mode) {
if (!previous) return ctx.lineTo(target.x, target.y);
if (mode === "middle") {
const midpoint = (previous.x + target.x) / 2;
ctx.lineTo(midpoint, previous.y);
ctx.lineTo(midpoint, target.y);
} else if (mode === "after" !== !!flip) ctx.lineTo(previous.x, target.y);
else ctx.lineTo(target.x, previous.y);
ctx.lineTo(target.x, target.y);
}
function _bezierCurveTo(ctx, previous, target, flip) {
if (!previous) return ctx.lineTo(target.x, target.y);
ctx.bezierCurveTo(flip ? previous.cp1x : previous.cp2x, flip ? previous.cp1y : previous.cp2y, flip ? target.cp2x : target.cp1x, flip ? target.cp2y : target.cp1y, target.x, target.y);
}
function setRenderOpts(ctx, opts) {
if (opts.translation) ctx.translate(opts.translation[0], opts.translation[1]);
if (!isNullOrUndef(opts.rotation)) ctx.rotate(opts.rotation);
if (opts.color) ctx.fillStyle = opts.color;
if (opts.textAlign) ctx.textAlign = opts.textAlign;
if (opts.textBaseline) ctx.textBaseline = opts.textBaseline;
}
function decorateText(ctx, x, y, line, opts) {
if (opts.strikethrough || opts.underline) {
const metrics = ctx.measureText(line);
const left = x - metrics.actualBoundingBoxLeft;
const right = x + metrics.actualBoundingBoxRight;
const top = y - metrics.actualBoundingBoxAscent;
const bottom = y + metrics.actualBoundingBoxDescent;
const yDecoration = opts.strikethrough ? (top + bottom) / 2 : bottom;
ctx.strokeStyle = ctx.fillStyle;
ctx.beginPath();
ctx.lineWidth = opts.decorationWidth || 2;
ctx.moveTo(left, yDecoration);
ctx.lineTo(right, yDecoration);
ctx.stroke();
}
}
function drawBackdrop(ctx, opts) {
const oldColor = ctx.fillStyle;
ctx.fillStyle = opts.color;
ctx.fillRect(opts.left, opts.top, opts.width, opts.height);
ctx.fillStyle = oldColor;
}
function renderText(ctx, text, x, y, font, opts = {}) {
const lines = isArray(text) ? text : [text];
const stroke = opts.strokeWidth > 0 && opts.strokeColor !== "";
let i, line;
ctx.save();
ctx.font = font.string;
setRenderOpts(ctx, opts);
for (i = 0; i < lines.length; ++i) {
line = lines[i];
if (opts.backdrop) drawBackdrop(ctx, opts.backdrop);
if (stroke) {
if (opts.strokeColor) ctx.strokeStyle = opts.strokeColor;
if (!isNullOrUndef(opts.strokeWidth)) ctx.lineWidth = opts.strokeWidth;
ctx.strokeText(line, x, y, opts.maxWidth);
}
ctx.fillText(line, x, y, opts.maxWidth);
decorateText(ctx, x, y, line, opts);
y += Number(font.lineHeight);
}
ctx.restore();
}
function addRoundedRectPath(ctx, rect) {
const { x, y, w, h, radius } = rect;
ctx.arc(x + radius.topLeft, y + radius.topLeft, radius.topLeft, 1.5 * PI, PI, true);
ctx.lineTo(x, y + h - radius.bottomLeft);
ctx.arc(x + radius.bottomLeft, y + h - radius.bottomLeft, radius.bottomLeft, PI, HALF_PI, true);
ctx.lineTo(x + w - radius.bottomRight, y + h);
ctx.arc(x + w - radius.bottomRight, y + h - radius.bottomRight, radius.bottomRight, HALF_PI, 0, true);
ctx.lineTo(x + w, y + radius.topRight);
ctx.arc(x + w - radius.topRight, y + radius.topRight, radius.topRight, 0, -HALF_PI, true);
ctx.lineTo(x + radius.topLeft, y);
}
var LINE_HEIGHT = /^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/;
var FONT_STYLE = /^(normal|italic|initial|inherit|unset|(oblique( -?[0-9]?[0-9]deg)?))$/;
function toLineHeight(value, size) {
const matches = ("" + value).match(LINE_HEIGHT);
if (!matches || matches[1] === "normal") return size * 1.2;
value = +matches[2];
switch (matches[3]) {
case "px": return value;
case "%":
value /= 100;
break;
}
return size * value;
}
var numberOrZero = (v) => +v || 0;
function _readValueToProps(value, props) {
const ret = {};
const objProps = isObject(props);
const keys = objProps ? Object.keys(props) : props;
const read = isObject(value) ? objProps ? (prop) => valueOrDefault(value[prop], value[props[prop]]) : (prop) => value[prop] : () => value;
for (const prop of keys) ret[prop] = numberOrZero(read(prop));
return ret;
}
function toTRBL(value) {
return _readValueToProps(value, {
top: "y",
right: "x",
bottom: "y",
left: "x"
});
}
function toTRBLCorners(value) {
return _readValueToProps(value, [
"topLeft",
"topRight",
"bottomLeft",
"bottomRight"
]);
}
function toPadding(value) {
const obj = toTRBL(value);
obj.width = obj.left + obj.right;
obj.height = obj.top + obj.bottom;
return obj;
}
function toFont(options, fallback) {
options = options || {};
fallback = fallback || defaults.font;
let size = valueOrDefault(options.size, fallback.size);
if (typeof size === "string") size = parseInt(size, 10);
let style = valueOrDefault(options.style, fallback.style);
if (style && !("" + style).match(FONT_STYLE)) {
console.warn("Invalid font style specified: \"" + style + "\"");
style = void 0;
}
const font = {
family: valueOrDefault(options.family, fallback.family),
lineHeight: toLineHeight(valueOrDefault(options.lineHeight, fallback.lineHeight), size),
size,
style,
weight: valueOrDefault(options.weight, fallback.weight),
string: ""
};
font.string = toFontString(font);
return font;
}
function resolve(inputs, context, index$1, info) {
let cacheable = true;
let i, ilen, value;
for (i = 0, ilen = inputs.length; i < ilen; ++i) {
value = inputs[i];
if (value === void 0) continue;
if (context !== void 0 && typeof value === "function") {
value = value(context);
cacheable = false;
}
if (index$1 !== void 0 && isArray(value)) {
value = value[index$1 % value.length];
cacheable = false;
}
if (value !== void 0) {
if (info && !cacheable) info.cacheable = false;
return value;
}
}
}
function _addGrace(minmax, grace, beginAtZero) {
const { min, max } = minmax;
const change = toDimension(grace, (max - min) / 2);
const keepZero = (value, add) => beginAtZero && value === 0 ? 0 : value + add;
return {
min: keepZero(min, -Math.abs(change)),
max: keepZero(max, change)
};
}
function createContext(parentContext, context) {
return Object.assign(Object.create(parentContext), context);
}
function _createResolver(scopes, prefixes = [""], rootScopes, fallback, getTarget = () => scopes[0]) {
const finalRootScopes = rootScopes || scopes;
if (typeof fallback === "undefined") fallback = _resolve("_fallback", scopes);
const cache = {
[Symbol.toStringTag]: "Object",
_cacheable: true,
_scopes: scopes,
_rootScopes: finalRootScopes,
_fallback: fallback,
_getTarget: getTarget,
override: (scope) => _createResolver([scope, ...scopes], prefixes, finalRootScopes, fallback)
};
return new Proxy(cache, {
deleteProperty(target, prop) {
delete target[prop];
delete target._keys;
delete scopes[0][prop];
return true;
},
get(target, prop) {
return _cached(target, prop, () => _resolveWithPrefixes(prop, prefixes, scopes, target));
},
getOwnPropertyDescriptor(target, prop) {
return Reflect.getOwnPropertyDescriptor(target._scopes[0], prop);
},
getPrototypeOf() {
return Reflect.getPrototypeOf(scopes[0]);
},
has(target, prop) {
return getKeysFromAllScopes(target).includes(prop);
},
ownKeys(target) {
return getKeysFromAllScopes(target);
},
set(target, prop, value) {
const storage = target._storage || (target._storage = getTarget());
target[prop] = storage[prop] = value;
delete target._keys;
return true;
}
});
}
function _attachContext(proxy, context, subProxy, descriptorDefaults) {
const cache = {
_cacheable: false,
_proxy: proxy,
_context: context,
_subProxy: subProxy,
_stack: /* @__PURE__ */ new Set(),
_descriptors: _descriptors(proxy, descriptorDefaults),
setContext: (ctx) => _attachContext(proxy, ctx, subProxy, descriptorDefaults),
override: (scope) => _attachContext(proxy.override(scope), context, subProxy, descriptorDefaults)
};
return new Proxy(cache, {
deleteProperty(target, prop) {
delete target[prop];
delete proxy[prop];
return true;
},
get(target, prop, receiver) {
return _cached(target, prop, () => _resolveWithContext(target, prop, receiver));
},
getOwnPropertyDescriptor(target, prop) {
return target._descriptors.allKeys ? Reflect.has(proxy, prop) ? {
enumerable: true,
configurable: true
} : void 0 : Reflect.getOwnPropertyDescriptor(proxy, prop);
},
getPrototypeOf() {
return Reflect.getPrototypeOf(proxy);
},
has(target, prop) {
return Reflect.has(proxy, prop);
},
ownKeys() {
return Reflect.ownKeys(proxy);
},
set(target, prop, value) {
proxy[prop] = value;
delete target[prop];
return true;
}
});
}
function _descriptors(proxy, defaults$1 = {
scriptable: true,
indexable: true
}) {
const { _scriptable = defaults$1.scriptable, _indexable = defaults$1.indexable, _allKeys = defaults$1.allKeys } = proxy;
return {
allKeys: _allKeys,
scriptable: _scriptable,
indexable: _indexable,
isScriptable: isFunction(_scriptable) ? _scriptable : () => _scriptable,
isIndexable: isFunction(_indexable) ? _indexable : () => _indexable
};
}
var readKey = (prefix, name) => prefix ? prefix + _capitalize(name) : name;
var needsSubResolver = (prop, value) => isObject(value) && prop !== "adapters" && (Object.getPrototypeOf(value) === null || value.constructor === Object);
function _cached(target, prop, resolve$1) {
if (Object.prototype.hasOwnProperty.call(target, prop)) return target[prop];
const value = resolve$1();
target[prop] = value;
return value;
}
function _resolveWithContext(target, prop, receiver) {
const { _proxy, _context, _subProxy, _descriptors: descriptors$1 } = target;
let value = _proxy[prop];
if (isFunction(value) && descriptors$1.isScriptable(prop)) value = _resolveScriptable(prop, value, target, receiver);
if (isArray(value) && value.length) value = _resolveArray(prop, value, target, descriptors$1.isIndexable);
if (needsSubResolver(prop, value)) value = _attachContext(value, _context, _subProxy && _subProxy[prop], descriptors$1);
return value;
}
function _resolveScriptable(prop, getValue, target, receiver) {
const { _proxy, _context, _subProxy, _stack } = target;
if (_stack.has(prop)) throw new Error("Recursion detected: " + Array.from(_stack).join("->") + "->" + prop);
_stack.add(prop);
let value = getValue(_context, _subProxy || receiver);
_stack.delete(prop);
if (needsSubResolver(prop, value)) value = createSubResolver(_proxy._scopes, _proxy, prop, value);
return value;
}
function _resolveArray(prop, value, target, isIndexable) {
const { _proxy, _context, _subProxy, _descriptors: descriptors$1 } = target;
if (typeof _context.index !== "undefined" && isIndexable(prop)) return value[_context.index % value.length];
else if (isObject(value[0])) {
const arr = value;
const scopes = _proxy._scopes.filter((s) => s !== arr);
value = [];
for (const item of arr) {
const resolver = createSubResolver(scopes, _proxy, prop, item);
value.push(_attachContext(resolver, _context, _subProxy && _subProxy[prop], descriptors$1));
}
}
return value;
}
function resolveFallback(fallback, prop, value) {
return isFunction(fallback) ? fallback(prop, value) : fallback;
}
var getScope = (key, parent) => key === true ? parent : typeof key === "string" ? resolveObjectKey(parent, key) : void 0;
function addScopes(set$1, parentScopes, key, parentFallback, value) {
for (const parent of parentScopes) {
const scope = getScope(key, parent);
if (scope) {
set$1.add(scope);
const fallback = resolveFallback(scope._fallback, key, value);
if (typeof fallback !== "undefined" && fallback !== key && fallback !== parentFallback) return fallback;
} else if (scope === false && typeof parentFallback !== "undefined" && key !== parentFallback) return null;
}
return false;
}
function createSubResolver(parentScopes, resolver, prop, value) {
const rootScopes = resolver._rootScopes;
const fallback = resolveFallback(resolver._fallback, prop, value);
const allScopes = [...parentScopes, ...rootScopes];
const set$1 = /* @__PURE__ */ new Set();
set$1.add(value);
let key = addScopesFromKey(set$1, allScopes, prop, fallback || prop, value);
if (key === null) return false;
if (typeof fallback !== "undefined" && fallback !== prop) {
key = addScopesFromKey(set$1, allScopes, fallback, key, value);
if (key === null) return false;
}
return _createResolver(Array.from(set$1), [""], rootScopes, fallback, () => subGetTarget(resolver, prop, value));
}
function addScopesFromKey(set$1, allScopes, key, fallback, item) {
while (key) key = addScopes(set$1, allScopes, key, fallback, item);
return key;
}
function subGetTarget(resolver, prop, value) {
const parent = resolver._getTarget();
if (!(prop in parent)) parent[prop] = {};
const target = parent[prop];
if (isArray(target) && isObject(value)) return value;
return target || {};
}
function _resolveWithPrefixes(prop, prefixes, scopes, proxy) {
let value;
for (const prefix of prefixes) {
value = _resolve(readKey(prefix, prop), scopes);
if (typeof value !== "undefined") return needsSubResolver(prop, value) ? createSubResolver(scopes, proxy, prop, value) : value;
}
}
function _resolve(key, scopes) {
for (const scope of scopes) {
if (!scope) continue;
const value = scope[key];
if (typeof value !== "undefined") return value;
}
}
function getKeysFromAllScopes(target) {
let keys = target._keys;
if (!keys) keys = target._keys = resolveKeysFromAllScopes(target._scopes);
return keys;
}
function resolveKeysFromAllScopes(scopes) {
const set$1 = /* @__PURE__ */ new Set();
for (const scope of scopes) for (const key of Object.keys(scope).filter((k) => !k.startsWith("_"))) set$1.add(key);
return Array.from(set$1);
}
var EPSILON = Number.EPSILON || 1e-14;
var getPoint = (points, i) => i < points.length && !points[i].skip && points[i];
var getValueAxis = (indexAxis) => indexAxis === "x" ? "y" : "x";
function splineCurve(firstPoint, middlePoint, afterPoint, t) {
const previous = firstPoint.skip ? middlePoint : firstPoint;
const current = middlePoint;
const next = afterPoint.skip ? middlePoint : afterPoint;
const d01 = distanceBetweenPoints(current, previous);
const d12 = distanceBetweenPoints(next, current);
let s01 = d01 / (d01 + d12);
let s12 = d12 / (d01 + d12);
s01 = isNaN(s01) ? 0 : s01;
s12 = isNaN(s12) ? 0 : s12;
const fa = t * s01;
const fb = t * s12;
return {
previous: {
x: current.x - fa * (next.x - previous.x),
y: current.y - fa * (next.y - previous.y)
},
next: {
x: current.x + fb * (next.x - previous.x),
y: current.y + fb * (next.y - previous.y)
}
};
}
function monotoneAdjust(points, deltaK, mK) {
const pointsLen = points.length;
let alphaK, betaK, tauK, squaredMagnitude, pointCurrent;
let pointAfter = getPoint(points, 0);
for (let i = 0; i < pointsLen - 1; ++i) {
pointCurrent = pointAfter;
pointAfter = getPoint(points, i + 1);
if (!pointCurrent || !pointAfter) continue;
if (almostEquals(deltaK[i], 0, EPSILON)) {
mK[i] = mK[i + 1] = 0;
continue;
}
alphaK = mK[i] / deltaK[i];
betaK = mK[i + 1] / deltaK[i];
squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2);
if (squaredMagnitude <= 9) continue;
tauK = 3 / Math.sqrt(squaredMagnitude);
mK[i] = alphaK * tauK * deltaK[i];
mK[i + 1] = betaK * tauK * deltaK[i];
}
}
function monotoneCompute(points, mK, indexAxis = "x") {
const valueAxis = getValueAxis(indexAxis);
const pointsLen = points.length;
let delta, pointBefore, pointCurrent;
let pointAfter = getPoint(points, 0);
for (let i = 0; i < pointsLen; ++i) {
pointBefore = pointCurrent;
pointCurrent = pointAfter;
pointAfter = getPoint(points, i + 1);
if (!pointCurrent) continue;
const iPixel = pointCurrent[indexAxis];
const vPixel = pointCurrent[valueAxis];
if (pointBefore) {
delta = (iPixel - pointBefore[indexAxis]) / 3;
pointCurrent[`cp1${indexAxis}`] = iPixel - delta;
pointCurrent[`cp1${valueAxis}`] = vPixel - delta * mK[i];
}
if (pointAfter) {
delta = (pointAfter[indexAxis] - iPixel) / 3;
pointCurrent[`cp2${indexAxis}`] = iPixel + delta;
pointCurrent[`cp2${valueAxis}`] = vPixel + delta * mK[i];
}
}
}
function splineCurveMonotone(points, indexAxis = "x") {
const valueAxis = getValueAxis(indexAxis);
const pointsLen = points.length;
const deltaK = Array(pointsLen).fill(0);
const mK = Array(pointsLen);
let i, pointBefore, pointCurrent;
let pointAfter = getPoint(points, 0);
for (i = 0; i < pointsLen; ++i) {
pointBefore = pointCurrent;
pointCurrent = pointAfter;
pointAfter = getPoint(points, i + 1);
if (!pointCurrent) continue;
if (pointAfter) {
const slopeDelta = pointAfter[indexAxis] - pointCurrent[indexAxis];
deltaK[i] = slopeDelta !== 0 ? (pointAfter[valueAxis] - pointCurrent[valueAxis]) / slopeDelta : 0;
}
mK[i] = !pointBefore ? deltaK[i] : !pointAfter ? deltaK[i - 1] : sign(deltaK[i - 1]) !== sign(deltaK[i]) ? 0 : (deltaK[i - 1] + deltaK[i]) / 2;
}
monotoneAdjust(points, deltaK, mK);
monotoneCompute(points, mK, indexAxis);
}
function capControlPoint(pt, min, max) {
return Math.max(Math.min(pt, max), min);
}
function capBezierPoints(points, area) {
let i, ilen, point, inArea, inAreaPrev;
let inAreaNext = _isPointInArea(points[0], area);
for (i = 0, ilen = points.length; i < ilen; ++i) {
inAreaPrev = inArea;
inArea = inAreaNext;
inAreaNext = i < ilen - 1 && _isPointInArea(points[i + 1], area);
if (!inArea) continue;
point = points[i];
if (inAreaPrev) {
point.cp1x = capControlPoint(point.cp1x, area.left, area.right);
point.cp1y = capControlPoint(point.cp1y, area.top, area.bottom);
}
if (inAreaNext) {
point.cp2x = capControlPoint(point.cp2x, area.left, area.right);
point.cp2y = capControlPoint(point.cp2y, area.top, area.bottom);
}
}
}
function _updateBezierControlPoints(points, options, area, loop, indexAxis) {
let i, ilen, point, controlPoints;
if (options.spanGaps) points = points.filter((pt) => !pt.skip);
if (options.cubicInterpolationMode === "monotone") splineCurveMonotone(points, indexAxis);
else {
let prev = loop ? points[points.length - 1] : points[0];
for (i = 0, ilen = points.length; i < ilen; ++i) {
point = points[i];
controlPoints = splineCurve(prev, point, points[Math.min(i + 1, ilen - (loop ? 0 : 1)) % ilen], options.tension);
point.cp1x = controlPoints.previous.x;
point.cp1y = controlPoints.previous.y;
point.cp2x = controlPoints.next.x;
point.cp2y = controlPoints.next.y;
prev = point;
}
}
if (options.capBezierPoints) capBezierPoints(points, area);
}
function _isDomSupported() {
return typeof window !== "undefined" && typeof document !== "undefined";
}
function _getParentNode(domNode) {
let parent = domNode.parentNode;
if (parent && parent.toString() === "[object ShadowRoot]") parent = parent.host;
return parent;
}
function parseMaxStyle(styleValue, node, parentProperty) {
let valueInPixels;
if (typeof styleValue === "string") {
valueInPixels = parseInt(styleValue, 10);
if (styleValue.indexOf("%") !== -1) valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty];
} else valueInPixels = styleValue;
return valueInPixels;
}
var getComputedStyle = (element) => element.ownerDocument.defaultView.getComputedStyle(element, null);
function getStyle(el, property) {
return getComputedStyle(el).getPropertyValue(property);
}
var positions = [
"top",
"right",
"bottom",
"left"
];
function getPositionedStyle(styles, style, suffix) {
const result = {};
suffix = suffix ? "-" + suffix : "";
for (let i = 0; i < 4; i++) {
const pos = positions[i];
result[pos] = parseFloat(styles[style + "-" + pos + suffix]) || 0;
}
result.width = result.left + result.right;
result.height = result.top + result.bottom;
return result;
}
var useOffsetPos = (x, y, target) => (x > 0 || y > 0) && (!target || !target.shadowRoot);
function getCanvasPosition(e, canvas) {
const touches = e.touches;
const source = touches && touches.length ? touches[0] : e;
const { offsetX, offsetY } = source;
let box = false;
let x, y;
if (useOffsetPos(offsetX, offsetY, e.target)) {
x = offsetX;
y = offsetY;
} else {
const rect = canvas.getBoundingClientRect();
x = source.clientX - rect.left;
y = source.clientY - rect.top;
box = true;
}
return {
x,
y,
box
};
}
function getRelativePosition(event, chart) {
if ("native" in event) return event;
const { canvas, currentDevicePixelRatio } = chart;
const style = getComputedStyle(canvas);
const borderBox = style.boxSizing === "border-box";
const paddings = getPositionedStyle(style, "padding");
const borders = getPositionedStyle(style, "border", "width");
const { x, y, box } = getCanvasPosition(event, canvas);
const xOffset = paddings.left + (box && borders.left);
const yOffset = paddings.top + (box && borders.top);
let { width, height } = chart;
if (borderBox) {
width -= paddings.width + borders.width;
height -= paddings.height + borders.height;
}
return {
x: Math.round((x - xOffset) / width * canvas.width / currentDevicePixelRatio),
y: Math.round((y - yOffset) / height * canvas.height / currentDevicePixelRatio)
};
}
function getContainerSize(canvas, width, height) {
let maxWidth, maxHeight;
if (width === void 0 || height === void 0) {
const container = _getParentNode(canvas);
if (!container) {
width = canvas.clientWidth;
height = canvas.clientHeight;
} else {
const rect = container.getBoundingClientRect();
const containerStyle = getComputedStyle(container);
const containerBorder = getPositionedStyle(containerStyle, "border", "width");
const containerPadding = getPositionedStyle(containerStyle, "padding");
width = rect.width - containerPadding.width - containerBorder.width;
height = rect.height - containerPadding.height - containerBorder.height;
maxWidth = parseMaxStyle(containerStyle.maxWidth, container, "clientWidth");
maxHeight = parseMaxStyle(containerStyle.maxHeight, container, "clientHeight");
}
}
return {
width,
height,
maxWidth: maxWidth || INFINITY,
maxHeight: maxHeight || INFINITY
};
}
var round1 = (v) => Math.round(v * 10) / 10;
function getMaximumSize(canvas, bbWidth, bbHeight, aspectRatio) {
const style = getComputedStyle(canvas);
const margins = getPositionedStyle(style, "margin");
const maxWidth = parseMaxStyle(style.maxWidth, canvas, "clientWidth") || INFINITY;
const maxHeight = parseMaxStyle(style.maxHeight, canvas, "clientHeight") || INFINITY;
const containerSize = getContainerSize(canvas, bbWidth, bbHeight);
let { width, height } = containerSize;
if (style.boxSizing === "content-box") {
const borders = getPositionedStyle(style, "border", "width");
const paddings = getPositionedStyle(style, "padding");
width -= paddings.width + borders.width;
height -= paddings.height + borders.height;
}
width = Math.max(0, width - margins.width);
height = Math.max(0, aspectRatio ? width / aspectRatio : height - margins.height);
width = round1(Math.min(width, maxWidth, containerSize.maxWidth));
height = round1(Math.min(height, maxHeight, containerSize.maxHeight));
if (width && !height) height = round1(width / 2);
if ((bbWidth !== void 0 || bbHeight !== void 0) && aspectRatio && containerSize.height && height > containerSize.height) {
height = containerSize.height;
width = round1(Math.floor(height * aspectRatio));
}
return {
width,
height
};
}
function retinaScale(chart, forceRatio, forceStyle) {
const pixelRatio = forceRatio || 1;
const deviceHeight = Math.floor(chart.height * pixelRatio);
const deviceWidth = Math.floor(chart.width * pixelRatio);
chart.height = Math.floor(chart.height);
chart.width = Math.floor(chart.width);
const canvas = chart.canvas;
if (canvas.style && (forceStyle || !canvas.style.height && !canvas.style.width)) {
canvas.style.height = `${chart.height}px`;
canvas.style.width = `${chart.width}px`;
}
if (chart.currentDevicePixelRatio !== pixelRatio || canvas.height !== deviceHeight || canvas.width !== deviceWidth) {
chart.currentDevicePixelRatio = pixelRatio;
canvas.height = deviceHeight;
canvas.width = deviceWidth;
chart.ctx.setTransform(pixelRatio, 0, 0, pixelRatio, 0, 0);
return true;
}
return false;
}
var supportsEventListenerOptions = function() {
let passiveSupported = false;
try {
const options = { get passive() {
passiveSupported = true;
return false;
} };
window.addEventListener("test", null, options);
window.removeEventListener("test", null, options);
} catch (e) {}
return passiveSupported;
}();
function readUsedSize(element, property) {
const value = getStyle(element, property);
const matches = value && value.match(/^(\d+)(\.\d+)?px$/);
return matches ? +matches[1] : void 0;
}
function _pointInLine(p1, p2, t, mode) {
return {
x: p1.x + t * (p2.x - p1.x),
y: p1.y + t * (p2.y - p1.y)
};
}
function _steppedInterpolation(p1, p2, t, mode) {
return {
x: p1.x + t * (p2.x - p1.x),
y: mode === "middle" ? t < .5 ? p1.y : p2.y : mode === "after" ? t < 1 ? p1.y : p2.y : t > 0 ? p2.y : p1.y
};
}
function _bezierInterpolation(p1, p2, t, mode) {
const cp1 = {
x: p1.cp2x,
y: p1.cp2y
};
const cp2 = {
x: p2.cp1x,
y: p2.cp1y
};
const a = _pointInLine(p1, cp1, t);
const b = _pointInLine(cp1, cp2, t);
const c = _pointInLine(cp2, p2, t);
return _pointInLine(_pointInLine(a, b, t), _pointInLine(b, c, t), t);
}
var getRightToLeftAdapter = function(rectX, width) {
return {
x(x) {
return rectX + rectX + width - x;
},
setWidth(w) {
width = w;
},
textAlign(align) {
if (align === "center") return align;
return align === "right" ? "left" : "right";
},
xPlus(x, value) {
return x - value;
},
leftForLtr(x, itemWidth) {
return x - itemWidth;
}
};
};
var getLeftToRightAdapter = function() {
return {
x(x) {
return x;
},
setWidth(w) {},
textAlign(align) {
return align;
},
xPlus(x, value) {
return x + value;
},
leftForLtr(x, _itemWidth) {
return x;
}
};
};
function getRtlAdapter(rtl, rectX, width) {
return rtl ? getRightToLeftAdapter(rectX, width) : getLeftToRightAdapter();
}
function overrideTextDirection(ctx, direction) {
let style, original;
if (direction === "ltr" || direction === "rtl") {
style = ctx.canvas.style;
original = [style.getPropertyValue("direction"), style.getPropertyPriority("direction")];
style.setProperty("direction", direction, "important");
ctx.prevTextDirection = original;
}
}
function restoreTextDirection(ctx, original) {
if (original !== void 0) {
delete ctx.prevTextDirection;
ctx.canvas.style.setProperty("direction", original[0], original[1]);
}
}
function propertyFn(property) {
if (property === "angle") return {
between: _angleBetween,
compare: _angleDiff,
normalize: _normalizeAngle
};
return {
between: _isBetween,
compare: (a, b) => a - b,
normalize: (x) => x
};
}
function normalizeSegment({ start, end, count, loop, style }) {
return {
start: start % count,
end: end % count,
loop: loop && (end - start + 1) % count === 0,
style
};
}
function getSegment(segment, points, bounds) {
const { property, start: startBound, end: endBound } = bounds;
const { between, normalize } = propertyFn(property);
const count = points.length;
let { start, end, loop } = segment;
let i, ilen;
if (loop) {
start += count;
end += count;
for (i = 0, ilen = count; i < ilen; ++i) {
if (!between(normalize(points[start % count][property]), startBound, endBound)) break;
start--;
end--;
}
start %= count;
end %= count;
}
if (end < start) end += count;
return {
start,
end,
loop,
style: segment.style
};
}
function _boundSegment(segment, points, bounds) {
if (!bounds) return [segment];
const { property, start: startBound, end: endBound } = bounds;
const count = points.length;
const { compare, between, normalize } = propertyFn(property);
const { start, end, loop, style } = getSegment(segment, points, bounds);
const result = [];
let inside = false;
let subStart = null;
let value, point, prevValue;
const startIsBefore = () => between(startBound, prevValue, value) && compare(startBound, prevValue) !== 0;
const endIsBefore = () => compare(endBound, value) === 0 || between(endBound, prevValue, value);
const shouldStart = () => inside || startIsBefore();
const shouldStop = () => !inside || endIsBefore();
for (let i = start, prev = start; i <= end; ++i) {
point = points[i % count];
if (point.skip) continue;
value = normalize(point[property]);
if (value === prevValue) continue;
inside = between(value, startBound, endBound);
if (subStart === null && shouldStart()) subStart = compare(value, startBound) === 0 ? i : prev;
if (subStart !== null && shouldStop()) {
result.push(normalizeSegment({
start: subStart,
end: i,
loop,
count,
style
}));
subStart = null;
}
prev = i;
prevValue = value;
}
if (subStart !== null) result.push(normalizeSegment({
start: subStart,
end,
loop,
count,
style
}));
return result;
}
function _boundSegments(line, bounds) {
const result = [];
const segments = line.segments;
for (let i = 0; i < segments.length; i++) {
const sub = _boundSegment(segments[i], line.points, bounds);
if (sub.length) result.push(...sub);
}
return result;
}
function findStartAndEnd(points, count, loop, spanGaps) {
let start = 0;
let end = count - 1;
if (loop && !spanGaps) while (start < count && !points[start].skip) start++;
while (start < count && points[start].skip) start++;
start %= count;
if (loop) end += start;
while (end > start && points[end % count].skip) end--;
end %= count;
return {
start,
end
};
}
function solidSegments(points, start, max, loop) {
const count = points.length;
const result = [];
let last = start;
let prev = points[start];
let end;
for (end = start + 1; end <= max; ++end) {
const cur = points[end % count];
if (cur.skip || cur.stop) {
if (!prev.skip) {
loop = false;
result.push({
start: start % count,
end: (end - 1) % count,
loop
});
start = last = cur.stop ? end : null;
}
} else {
last = end;
if (prev.skip) start = end;
}
prev = cur;
}
if (last !== null) result.push({
start: start % count,
end: last % count,
loop
});
return result;
}
function _computeSegments(line, segmentOptions) {
const points = line.points;
const spanGaps = line.options.spanGaps;
const count = points.length;
if (!count) return [];
const loop = !!line._loop;
const { start, end } = findStartAndEnd(points, count, loop, spanGaps);
if (spanGaps === true) return splitByStyles(line, [{
start,
end,
loop
}], points, segmentOptions);
return splitByStyles(line, solidSegments(points, start, end < start ? end + count : end, !!line._fullLoop && start === 0 && end === count - 1), points, segmentOptions);
}
function splitByStyles(line, segments, points, segmentOptions) {
if (!segmentOptions || !segmentOptions.setContext || !points) return segments;
return doSplitByStyles(line, segments, points, segmentOptions);
}
function doSplitByStyles(line, segments, points, segmentOptions) {
const chartContext = line._chart.getContext();
const baseStyle = readStyle(line.options);
const { _datasetIndex: datasetIndex, options: { spanGaps } } = line;
const count = points.length;
const result = [];
let prevStyle = baseStyle;
let start = segments[0].start;
let i = start;
function addStyle(s, e, l, st) {
const dir = spanGaps ? -1 : 1;
if (s === e) return;
s += count;
while (points[s % count].skip) s -= dir;
while (points[e % count].skip) e += dir;
if (s % count !== e % count) {
result.push({
start: s % count,
end: e % count,
loop: l,
style: st
});
prevStyle = st;
start = e % count;
}
}
for (const segment of segments) {
start = spanGaps ? start : segment.start;
let prev = points[start % count];
let style;
for (i = start + 1; i <= segment.end; i++) {
const pt = points[i % count];
style = readStyle(segmentOptions.setContext(createContext(chartContext, {
type: "segment",
p0: prev,
p1: pt,
p0DataIndex: (i - 1) % count,
p1DataIndex: i % count,
datasetIndex
})));
if (styleChanged(style, prevStyle)) addStyle(start, i - 1, segment.loop, prevStyle);
prev = pt;
prevStyle = style;
}
if (start < i - 1) addStyle(start, i - 1, segment.loop, prevStyle);
}
return result;
}
function readStyle(options) {
return {
backgroundColor: options.backgroundColor,
borderCapStyle: options.borderCapStyle,
borderDash: options.borderDash,
borderDashOffset: options.borderDashOffset,
borderJoinStyle: options.borderJoinStyle,
borderWidth: options.borderWidth,
borderColor: options.borderColor
};
}
function styleChanged(style, prevStyle) {
if (!prevStyle) return false;
const cache = [];
const replacer = function(key, value) {
if (!isPatternOrGradient(value)) return value;
if (!cache.includes(value)) cache.push(value);
return cache.indexOf(value);
};
return JSON.stringify(style, replacer) !== JSON.stringify(prevStyle, replacer);
}
var Animator = class {
constructor() {
this._request = null;
this._charts = /* @__PURE__ */ new Map();
this._running = false;
this._lastDate = void 0;
}
_notify(chart, anims, date, type) {
const callbacks = anims.listeners[type];
const numSteps = anims.duration;
callbacks.forEach((fn) => fn({
chart,
initial: anims.initial,
numSteps,
currentStep: Math.min(date - anims.start, numSteps)
}));
}
_refresh() {
if (this._request) return;
this._running = true;
this._request = requestAnimFrame.call(window, () => {
this._update();
this._request = null;
if (this._running) this._refresh();
});
}
_update(date = Date.now()) {
let remaining = 0;
this._charts.forEach((anims, chart) => {
if (!anims.running || !anims.items.length) return;
const items = anims.items;
let i = items.length - 1;
let draw$1 = false;
let item;
for (; i >= 0; --i) {
item = items[i];
if (item._active) {
if (item._total > anims.duration) anims.duration = item._total;
item.tick(date);
draw$1 = true;
} else {
items[i] = items[items.length - 1];
items.pop();
}
}
if (draw$1) {
chart.draw();
this._notify(chart, anims, date, "progress");
}
if (!items.length) {
anims.running = false;
this._notify(chart, anims, date, "complete");
anims.initial = false;
}
remaining += items.length;
});
this._lastDate = date;
if (remaining === 0) this._running = false;
}
_getAnims(chart) {
const charts = this._charts;
let anims = charts.get(chart);
if (!anims) {
anims = {
running: false,
initial: true,
items: [],
listeners: {
complete: [],
progress: []
}
};
charts.set(chart, anims);
}
return anims;
}
listen(chart, event, cb) {
this._getAnims(chart).listeners[event].push(cb);
}
add(chart, items) {
if (!items || !items.length) return;
this._getAnims(chart).items.push(...items);
}
has(chart) {
return this._getAnims(chart).items.length > 0;
}
start(chart) {
const anims = this._charts.get(chart);
if (!anims) return;
anims.running = true;
anims.start = Date.now();
anims.duration = anims.items.reduce((acc, cur) => Math.max(acc, cur._duration), 0);
this._refresh();
}
running(chart) {
if (!this._running) return false;
const anims = this._charts.get(chart);
if (!anims || !anims.running || !anims.items.length) return false;
return true;
}
stop(chart) {
const anims = this._charts.get(chart);
if (!anims || !anims.items.length) return;
const items = anims.items;
let i = items.length - 1;
for (; i >= 0; --i) items[i].cancel();
anims.items = [];
this._notify(chart, anims, Date.now(), "complete");
}
remove(chart) {
return this._charts.delete(chart);
}
};
var animator = /* @__PURE__ */ new Animator();
var transparent = "transparent";
var interpolators = {
boolean(from$1, to$1, factor) {
return factor > .5 ? to$1 : from$1;
},
color(from$1, to$1, factor) {
const c0 = color(from$1 || transparent);
const c1 = c0.valid && color(to$1 || transparent);
return c1 && c1.valid ? c1.mix(c0, factor).hexString() : to$1;
},
number(from$1, to$1, factor) {
return from$1 + (to$1 - from$1) * factor;
}
};
var Animation = class {
constructor(cfg, target, prop, to$1) {
const currentValue = target[prop];
to$1 = resolve([
cfg.to,
to$1,
currentValue,
cfg.from
]);
const from$1 = resolve([
cfg.from,
currentValue,
to$1
]);
this._active = true;
this._fn = cfg.fn || interpolators[cfg.type || typeof from$1];
this._easing = effects[cfg.easing] || effects.linear;
this._start = Math.floor(Date.now() + (cfg.delay || 0));
this._duration = this._total = Math.floor(cfg.duration);
this._loop = !!cfg.loop;
this._target = target;
this._prop = prop;
this._from = from$1;
this._to = to$1;
this._promises = void 0;
}
active() {
return this._active;
}
update(cfg, to$1, date) {
if (this._active) {
this._notify(false);
const currentValue = this._target[this._prop];
const elapsed = date - this._start;
const remain = this._duration - elapsed;
this._start = date;
this._duration = Math.floor(Math.max(remain, cfg.duration));
this._total += elapsed;
this._loop = !!cfg.loop;
this._to = resolve([
cfg.to,
to$1,
currentValue,
cfg.from
]);
this._from = resolve([
cfg.from,
currentValue,
to$1
]);
}
}
cancel() {
if (this._active) {
this.tick(Date.now());
this._active = false;
this._notify(false);
}
}
tick(date) {
const elapsed = date - this._start;
const duration = this._duration;
const prop = this._prop;
const from$1 = this._from;
const loop = this._loop;
const to$1 = this._to;
let factor;
this._active = from$1 !== to$1 && (loop || elapsed < duration);
if (!this._active) {
this._target[prop] = to$1;
this._notify(true);
return;
}
if (elapsed < 0) {
this._target[prop] = from$1;
return;
}
factor = elapsed / duration % 2;
factor = loop && factor > 1 ? 2 - factor : factor;
factor = this._easing(Math.min(1, Math.max(0, factor)));
this._target[prop] = this._fn(from$1, to$1, factor);
}
wait() {
const promises = this._promises || (this._promises = []);
return new Promise((res, rej) => {
promises.push({
res,
rej
});
});
}
_notify(resolved) {
const method = resolved ? "res" : "rej";
const promises = this._promises || [];
for (let i = 0; i < promises.length; i++) promises[i][method]();
}
};
var Animations = class {
constructor(chart, config) {
this._chart = chart;
this._properties = /* @__PURE__ */ new Map();
this.configure(config);
}
configure(config) {
if (!isObject(config)) return;
const animationOptions = Object.keys(defaults.animation);
const animatedProps = this._properties;
Object.getOwnPropertyNames(config).forEach((key) => {
const cfg = config[key];
if (!isObject(cfg)) return;
const resolved = {};
for (const option of animationOptions) resolved[option] = cfg[option];
(isArray(cfg.properties) && cfg.properties || [key]).forEach((prop) => {
if (prop === key || !animatedProps.has(prop)) animatedProps.set(prop, resolved);
});
});
}
_animateOptions(target, values) {
const newOptions = values.options;
const options = resolveTargetOptions(target, newOptions);
if (!options) return [];
const animations = this._createAnimations(options, newOptions);
if (newOptions.$shared) awaitAll(target.options.$animations, newOptions).then(() => {
target.options = newOptions;
}, () => {});
return animations;
}
_createAnimations(target, values) {
const animatedProps = this._properties;
const animations = [];
const running = target.$animations || (target.$animations = {});
const props = Object.keys(values);
const date = Date.now();
let i;
for (i = props.length - 1; i >= 0; --i) {
const prop = props[i];
if (prop.charAt(0) === "$") continue;
if (prop === "options") {
animations.push(...this._animateOptions(target, values));
continue;
}
const value = values[prop];
let animation = running[prop];
const cfg = animatedProps.get(prop);
if (animation) if (cfg && animation.active()) {
animation.update(cfg, value, date);
continue;
} else animation.cancel();
if (!cfg || !cfg.duration) {
target[prop] = value;
continue;
}
running[prop] = animation = new Animation(cfg, target, prop, value);
animations.push(animation);
}
return animations;
}
update(target, values) {
if (this._properties.size === 0) {
Object.assign(target, values);
return;
}
const animations = this._createAnimations(target, values);
if (animations.length) {
animator.add(this._chart, animations);
return true;
}
}
};
function awaitAll(animations, properties) {
const running = [];
const keys = Object.keys(properties);
for (let i = 0; i < keys.length; i++) {
const anim = animations[keys[i]];
if (anim && anim.active()) running.push(anim.wait());
}
return Promise.all(running);
}
function resolveTargetOptions(target, newOptions) {
if (!newOptions) return;
let options = target.options;
if (!options) {
target.options = newOptions;
return;
}
if (options.$shared) target.options = options = Object.assign({}, options, {
$shared: false,
$animations: {}
});
return options;
}
function scaleClip(scale, allowedOverflow) {
const opts = scale && scale.options || {};
const reverse = opts.reverse;
const min = opts.min === void 0 ? allowedOverflow : 0;
const max = opts.max === void 0 ? allowedOverflow : 0;
return {
start: reverse ? max : min,
end: reverse ? min : max
};
}
function defaultClip(xScale, yScale, allowedOverflow) {
if (allowedOverflow === false) return false;
const x = scaleClip(xScale, allowedOverflow);
const y = scaleClip(yScale, allowedOverflow);
return {
top: y.end,
right: x.end,
bottom: y.start,
left: x.start
};
}
function toClip(value) {
let t, r, b, l;
if (isObject(value)) {
t = value.top;
r = value.right;
b = value.bottom;
l = value.left;
} else t = r = b = l = value;
return {
top: t,
right: r,
bottom: b,
left: l,
disabled: value === false
};
}
function getSortedDatasetIndices(chart, filterVisible) {
const keys = [];
const metasets = chart._getSortedDatasetMetas(filterVisible);
let i, ilen;
for (i = 0, ilen = metasets.length; i < ilen; ++i) keys.push(metasets[i].index);
return keys;
}
function applyStack(stack, value, dsIndex, options = {}) {
const keys = stack.keys;
const singleMode = options.mode === "single";
let i, ilen, datasetIndex, otherValue;
if (value === null) return;
for (i = 0, ilen = keys.length; i < ilen; ++i) {
datasetIndex = +keys[i];
if (datasetIndex === dsIndex) {
if (options.all) continue;
break;
}
otherValue = stack.values[datasetIndex];
if (isNumberFinite(otherValue) && (singleMode || value === 0 || sign(value) === sign(otherValue))) value += otherValue;
}
return value;
}
function convertObjectDataToArray(data) {
const keys = Object.keys(data);
const adata = new Array(keys.length);
let i, ilen, key;
for (i = 0, ilen = keys.length; i < ilen; ++i) {
key = keys[i];
adata[i] = {
x: key,
y: data[key]
};
}
return adata;
}
function isStacked(scale, meta) {
const stacked = scale && scale.options.stacked;
return stacked || stacked === void 0 && meta.stack !== void 0;
}
function getStackKey(indexScale, valueScale, meta) {
return `${indexScale.id}.${valueScale.id}.${meta.stack || meta.type}`;
}
function getUserBounds(scale) {
const { min, max, minDefined, maxDefined } = scale.getUserBounds();
return {
min: minDefined ? min : Number.NEGATIVE_INFINITY,
max: maxDefined ? max : Number.POSITIVE_INFINITY
};
}
function getOrCreateStack(stacks, stackKey, indexValue) {
const subStack = stacks[stackKey] || (stacks[stackKey] = {});
return subStack[indexValue] || (subStack[indexValue] = {});
}
function getLastIndexInStack(stack, vScale, positive, type) {
for (const meta of vScale.getMatchingVisibleMetas(type).reverse()) {
const value = stack[meta.index];
if (positive && value > 0 || !positive && value < 0) return meta.index;
}
return null;
}
function updateStacks(controller, parsed) {
const { chart, _cachedMeta: meta } = controller;
const stacks = chart._stacks || (chart._stacks = {});
const { iScale, vScale, index: datasetIndex } = meta;
const iAxis = iScale.axis;
const vAxis = vScale.axis;
const key = getStackKey(iScale, vScale, meta);
const ilen = parsed.length;
let stack;
for (let i = 0; i < ilen; ++i) {
const item = parsed[i];
const { [iAxis]: index$1, [vAxis]: value } = item;
const itemStacks = item._stacks || (item._stacks = {});
stack = itemStacks[vAxis] = getOrCreateStack(stacks, key, index$1);
stack[datasetIndex] = value;
stack._top = getLastIndexInStack(stack, vScale, true, meta.type);
stack._bottom = getLastIndexInStack(stack, vScale, false, meta.type);
const visualValues = stack._visualValues || (stack._visualValues = {});
visualValues[datasetIndex] = value;
}
}
function getFirstScaleId(chart, axis) {
const scales = chart.scales;
return Object.keys(scales).filter((key) => scales[key].axis === axis).shift();
}
function createDatasetContext(parent, index$1) {
return createContext(parent, {
active: false,
dataset: void 0,
datasetIndex: index$1,
index: index$1,
mode: "default",
type: "dataset"
});
}
function createDataContext(parent, index$1, element) {
return createContext(parent, {
active: false,
dataIndex: index$1,
parsed: void 0,
raw: void 0,
element,
index: index$1,
mode: "default",
type: "data"
});
}
function clearStacks(meta, items) {
const datasetIndex = meta.controller.index;
const axis = meta.vScale && meta.vScale.axis;
if (!axis) return;
items = items || meta._parsed;
for (const parsed of items) {
const stacks = parsed._stacks;
if (!stacks || stacks[axis] === void 0 || stacks[axis][datasetIndex] === void 0) return;
delete stacks[axis][datasetIndex];
if (stacks[axis]._visualValues !== void 0 && stacks[axis]._visualValues[datasetIndex] !== void 0) delete stacks[axis]._visualValues[datasetIndex];
}
}
var isDirectUpdateMode = (mode) => mode === "reset" || mode === "none";
var cloneIfNotShared = (cached, shared) => shared ? cached : Object.assign({}, cached);
var createStack = (canStack, meta, chart) => canStack && !meta.hidden && meta._stacked && {
keys: getSortedDatasetIndices(chart, true),
values: null
};
var DatasetController = class {
static defaults = {};
static datasetElementType = null;
static dataElementType = null;
constructor(chart, datasetIndex) {
this.chart = chart;
this._ctx = chart.ctx;
this.index = datasetIndex;
this._cachedDataOpts = {};
this._cachedMeta = this.getMeta();
this._type = this._cachedMeta.type;
this.options = void 0;
this._parsing = false;
this._data = void 0;
this._objectData = void 0;
this._sharedOptions = void 0;
this._drawStart = void 0;
this._drawCount = void 0;
this.enableOptionSharing = false;
this.supportsDecimation = false;
this.$context = void 0;
this._syncList = [];
this.datasetElementType = new.target.datasetElementType;
this.dataElementType = new.target.dataElementType;
this.initialize();
}
initialize() {
const meta = this._cachedMeta;
this.configure();
this.linkScales();
meta._stacked = isStacked(meta.vScale, meta);
this.addElements();
if (this.options.fill && !this.chart.isPluginEnabled("filler")) console.warn("Tried to use the 'fill' option without the 'Filler' plugin enabled. Please import and register the 'Filler' plugin and make sure it is not disabled in the options");
}
updateIndex(datasetIndex) {
if (this.index !== datasetIndex) clearStacks(this._cachedMeta);
this.index = datasetIndex;
}
linkScales() {
const chart = this.chart;
const meta = this._cachedMeta;
const dataset = this.getDataset();
const chooseId = (axis, x, y, r) => axis === "x" ? x : axis === "r" ? r : y;
const xid = meta.xAxisID = valueOrDefault(dataset.xAxisID, getFirstScaleId(chart, "x"));
const yid = meta.yAxisID = valueOrDefault(dataset.yAxisID, getFirstScaleId(chart, "y"));
const rid = meta.rAxisID = valueOrDefault(dataset.rAxisID, getFirstScaleId(chart, "r"));
const indexAxis = meta.indexAxis;
const iid = meta.iAxisID = chooseId(indexAxis, xid, yid, rid);
const vid = meta.vAxisID = chooseId(indexAxis, yid, xid, rid);
meta.xScale = this.getScaleForId(xid);
meta.yScale = this.getScaleForId(yid);
meta.rScale = this.getScaleForId(rid);
meta.iScale = this.getScaleForId(iid);
meta.vScale = this.getScaleForId(vid);
}
getDataset() {
return this.chart.data.datasets[this.index];
}
getMeta() {
return this.chart.getDatasetMeta(this.index);
}
getScaleForId(scaleID) {
return this.chart.scales[scaleID];
}
_getOtherScale(scale) {
const meta = this._cachedMeta;
return scale === meta.iScale ? meta.vScale : meta.iScale;
}
reset() {
this._update("reset");
}
_destroy() {
const meta = this._cachedMeta;
if (this._data) unlistenArrayEvents(this._data, this);
if (meta._stacked) clearStacks(meta);
}
_dataCheck() {
const dataset = this.getDataset();
const data = dataset.data || (dataset.data = []);
const _data = this._data;
if (isObject(data)) this._data = convertObjectDataToArray(data);
else if (_data !== data) {
if (_data) {
unlistenArrayEvents(_data, this);
const meta = this._cachedMeta;
clearStacks(meta);
meta._parsed = [];
}
if (data && Object.isExtensible(data)) listenArrayEvents(data, this);
this._syncList = [];
this._data = data;
}
}
addElements() {
const meta = this._cachedMeta;
this._dataCheck();
if (this.datasetElementType) meta.dataset = new this.datasetElementType();
}
buildOrUpdateElements(resetNewElements) {
const meta = this._cachedMeta;
const dataset = this.getDataset();
let stackChanged = false;
this._dataCheck();
const oldStacked = meta._stacked;
meta._stacked = isStacked(meta.vScale, meta);
if (meta.stack !== dataset.stack) {
stackChanged = true;
clearStacks(meta);
meta.stack = dataset.stack;
}
this._resyncElements(resetNewElements);
if (stackChanged || oldStacked !== meta._stacked) updateStacks(this, meta._parsed);
}
configure() {
const config = this.chart.config;
const scopeKeys = config.datasetScopeKeys(this._type);
const scopes = config.getOptionScopes(this.getDataset(), scopeKeys, true);
this.options = config.createResolver(scopes, this.getContext());
this._parsing = this.options.parsing;
this._cachedDataOpts = {};
}
parse(start, count) {
const { _cachedMeta: meta, _data: data } = this;
const { iScale, _stacked } = meta;
const iAxis = iScale.axis;
let sorted = start === 0 && count === data.length ? true : meta._sorted;
let prev = start > 0 && meta._parsed[start - 1];
let i, cur, parsed;
if (this._parsing === false) {
meta._parsed = data;
meta._sorted = true;
parsed = data;
} else {
if (isArray(data[start])) parsed = this.parseArrayData(meta, data, start, count);
else if (isObject(data[start])) parsed = this.parseObjectData(meta, data, start, count);
else parsed = this.parsePrimitiveData(meta, data, start, count);
const isNotInOrderComparedToPrev = () => cur[iAxis] === null || prev && cur[iAxis] < prev[iAxis];
for (i = 0; i < count; ++i) {
meta._parsed[i + start] = cur = parsed[i];
if (sorted) {
if (isNotInOrderComparedToPrev()) sorted = false;
prev = cur;
}
}
meta._sorted = sorted;
}
if (_stacked) updateStacks(this, parsed);
}
parsePrimitiveData(meta, data, start, count) {
const { iScale, vScale } = meta;
const iAxis = iScale.axis;
const vAxis = vScale.axis;
const labels = iScale.getLabels();
const singleScale = iScale === vScale;
const parsed = new Array(count);
let i, ilen, index$1;
for (i = 0, ilen = count; i < ilen; ++i) {
index$1 = i + start;
parsed[i] = {
[iAxis]: singleScale || iScale.parse(labels[index$1], index$1),
[vAxis]: vScale.parse(data[index$1], index$1)
};
}
return parsed;
}
parseArrayData(meta, data, start, count) {
const { xScale, yScale } = meta;
const parsed = new Array(count);
let i, ilen, index$1, item;
for (i = 0, ilen = count; i < ilen; ++i) {
index$1 = i + start;
item = data[index$1];
parsed[i] = {
x: xScale.parse(item[0], index$1),
y: yScale.parse(item[1], index$1)
};
}
return parsed;
}
parseObjectData(meta, data, start, count) {
const { xScale, yScale } = meta;
const { xAxisKey = "x", yAxisKey = "y" } = this._parsing;
const parsed = new Array(count);
let i, ilen, index$1, item;
for (i = 0, ilen = count; i < ilen; ++i) {
index$1 = i + start;
item = data[index$1];
parsed[i] = {
x: xScale.parse(resolveObjectKey(item, xAxisKey), index$1),
y: yScale.parse(resolveObjectKey(item, yAxisKey), index$1)
};
}
return parsed;
}
getParsed(index$1) {
return this._cachedMeta._parsed[index$1];
}
getDataElement(index$1) {
return this._cachedMeta.data[index$1];
}
applyStack(scale, parsed, mode) {
const chart = this.chart;
const meta = this._cachedMeta;
const value = parsed[scale.axis];
return applyStack({
keys: getSortedDatasetIndices(chart, true),
values: parsed._stacks[scale.axis]._visualValues
}, value, meta.index, { mode });
}
updateRangeFromParsed(range, scale, parsed, stack) {
const parsedValue = parsed[scale.axis];
let value = parsedValue === null ? NaN : parsedValue;
const values = stack && parsed._stacks[scale.axis];
if (stack && values) {
stack.values = values;
value = applyStack(stack, parsedValue, this._cachedMeta.index);
}
range.min = Math.min(range.min, value);
range.max = Math.max(range.max, value);
}
getMinMax(scale, canStack) {
const meta = this._cachedMeta;
const _parsed = meta._parsed;
const sorted = meta._sorted && scale === meta.iScale;
const ilen = _parsed.length;
const otherScale = this._getOtherScale(scale);
const stack = createStack(canStack, meta, this.chart);
const range = {
min: Number.POSITIVE_INFINITY,
max: Number.NEGATIVE_INFINITY
};
const { min: otherMin, max: otherMax } = getUserBounds(otherScale);
let i, parsed;
function _skip() {
parsed = _parsed[i];
const otherValue = parsed[otherScale.axis];
return !isNumberFinite(parsed[scale.axis]) || otherMin > otherValue || otherMax < otherValue;
}
for (i = 0; i < ilen; ++i) {
if (_skip()) continue;
this.updateRangeFromParsed(range, scale, parsed, stack);
if (sorted) break;
}
if (sorted) for (i = ilen - 1; i >= 0; --i) {
if (_skip()) continue;
this.updateRangeFromParsed(range, scale, parsed, stack);
break;
}
return range;
}
getAllParsedValues(scale) {
const parsed = this._cachedMeta._parsed;
const values = [];
let i, ilen, value;
for (i = 0, ilen = parsed.length; i < ilen; ++i) {
value = parsed[i][scale.axis];
if (isNumberFinite(value)) values.push(value);
}
return values;
}
getMaxOverflow() {
return false;
}
getLabelAndValue(index$1) {
const meta = this._cachedMeta;
const iScale = meta.iScale;
const vScale = meta.vScale;
const parsed = this.getParsed(index$1);
return {
label: iScale ? "" + iScale.getLabelForValue(parsed[iScale.axis]) : "",
value: vScale ? "" + vScale.getLabelForValue(parsed[vScale.axis]) : ""
};
}
_update(mode) {
const meta = this._cachedMeta;
this.update(mode || "default");
meta._clip = toClip(valueOrDefault(this.options.clip, defaultClip(meta.xScale, meta.yScale, this.getMaxOverflow())));
}
update(mode) {}
draw() {
const ctx = this._ctx;
const chart = this.chart;
const meta = this._cachedMeta;
const elements = meta.data || [];
const area = chart.chartArea;
const active = [];
const start = this._drawStart || 0;
const count = this._drawCount || elements.length - start;
const drawActiveElementsOnTop = this.options.drawActiveElementsOnTop;
let i;
if (meta.dataset) meta.dataset.draw(ctx, area, start, count);
for (i = start; i < start + count; ++i) {
const element = elements[i];
if (element.hidden) continue;
if (element.active && drawActiveElementsOnTop) active.push(element);
else element.draw(ctx, area);
}
for (i = 0; i < active.length; ++i) active[i].draw(ctx, area);
}
getStyle(index$1, active) {
const mode = active ? "active" : "default";
return index$1 === void 0 && this._cachedMeta.dataset ? this.resolveDatasetElementOptions(mode) : this.resolveDataElementOptions(index$1 || 0, mode);
}
getContext(index$1, active, mode) {
const dataset = this.getDataset();
let context;
if (index$1 >= 0 && index$1 < this._cachedMeta.data.length) {
const element = this._cachedMeta.data[index$1];
context = element.$context || (element.$context = createDataContext(this.getContext(), index$1, element));
context.parsed = this.getParsed(index$1);
context.raw = dataset.data[index$1];
context.index = context.dataIndex = index$1;
} else {
context = this.$context || (this.$context = createDatasetContext(this.chart.getContext(), this.index));
context.dataset = dataset;
context.index = context.datasetIndex = this.index;
}
context.active = !!active;
context.mode = mode;
return context;
}
resolveDatasetElementOptions(mode) {
return this._resolveElementOptions(this.datasetElementType.id, mode);
}
resolveDataElementOptions(index$1, mode) {
return this._resolveElementOptions(this.dataElementType.id, mode, index$1);
}
_resolveElementOptions(elementType, mode = "default", index$1) {
const active = mode === "active";
const cache = this._cachedDataOpts;
const cacheKey = elementType + "-" + mode;
const cached = cache[cacheKey];
const sharing = this.enableOptionSharing && defined(index$1);
if (cached) return cloneIfNotShared(cached, sharing);
const config = this.chart.config;
const scopeKeys = config.datasetElementScopeKeys(this._type, elementType);
const prefixes = active ? [
`${elementType}Hover`,
"hover",
elementType,
""
] : [elementType, ""];
const scopes = config.getOptionScopes(this.getDataset(), scopeKeys);
const names$2 = Object.keys(defaults.elements[elementType]);
const context = () => this.getContext(index$1, active, mode);
const values = config.resolveNamedOptions(scopes, names$2, context, prefixes);
if (values.$shared) {
values.$shared = sharing;
cache[cacheKey] = Object.freeze(cloneIfNotShared(values, sharing));
}
return values;
}
_resolveAnimations(index$1, transition, active) {
const chart = this.chart;
const cache = this._cachedDataOpts;
const cacheKey = `animation-${transition}`;
const cached = cache[cacheKey];
if (cached) return cached;
let options;
if (chart.options.animation !== false) {
const config = this.chart.config;
const scopeKeys = config.datasetAnimationScopeKeys(this._type, transition);
const scopes = config.getOptionScopes(this.getDataset(), scopeKeys);
options = config.createResolver(scopes, this.getContext(index$1, active, transition));
}
const animations = new Animations(chart, options && options.animations);
if (options && options._cacheable) cache[cacheKey] = Object.freeze(animations);
return animations;
}
getSharedOptions(options) {
if (!options.$shared) return;
return this._sharedOptions || (this._sharedOptions = Object.assign({}, options));
}
includeOptions(mode, sharedOptions) {
return !sharedOptions || isDirectUpdateMode(mode) || this.chart._animationsDisabled;
}
_getSharedOptions(start, mode) {
const firstOpts = this.resolveDataElementOptions(start, mode);
const previouslySharedOptions = this._sharedOptions;
const sharedOptions = this.getSharedOptions(firstOpts);
const includeOptions = this.includeOptions(mode, sharedOptions) || sharedOptions !== previouslySharedOptions;
this.updateSharedOptions(sharedOptions, mode, firstOpts);
return {
sharedOptions,
includeOptions
};
}
updateElement(element, index$1, properties, mode) {
if (isDirectUpdateMode(mode)) Object.assign(element, properties);
else this._resolveAnimations(index$1, mode).update(element, properties);
}
updateSharedOptions(sharedOptions, mode, newOptions) {
if (sharedOptions && !isDirectUpdateMode(mode)) this._resolveAnimations(void 0, mode).update(sharedOptions, newOptions);
}
_setStyle(element, index$1, mode, active) {
element.active = active;
const options = this.getStyle(index$1, active);
this._resolveAnimations(index$1, mode, active).update(element, { options: !active && this.getSharedOptions(options) || options });
}
removeHoverStyle(element, datasetIndex, index$1) {
this._setStyle(element, index$1, "active", false);
}
setHoverStyle(element, datasetIndex, index$1) {
this._setStyle(element, index$1, "active", true);
}
_removeDatasetHoverStyle() {
const element = this._cachedMeta.dataset;
if (element) this._setStyle(element, void 0, "active", false);
}
_setDatasetHoverStyle() {
const element = this._cachedMeta.dataset;
if (element) this._setStyle(element, void 0, "active", true);
}
_resyncElements(resetNewElements) {
const data = this._data;
const elements = this._cachedMeta.data;
for (const [method, arg1, arg2] of this._syncList) this[method](arg1, arg2);
this._syncList = [];
const numMeta = elements.length;
const numData = data.length;
const count = Math.min(numData, numMeta);
if (count) this.parse(0, count);
if (numData > numMeta) this._insertElements(numMeta, numData - numMeta, resetNewElements);
else if (numData < numMeta) this._removeElements(numData, numMeta - numData);
}
_insertElements(start, count, resetNewElements = true) {
const meta = this._cachedMeta;
const data = meta.data;
const end = start + count;
let i;
const move = (arr) => {
arr.length += count;
for (i = arr.length - 1; i >= end; i--) arr[i] = arr[i - count];
};
move(data);
for (i = start; i < end; ++i) data[i] = new this.dataElementType();
if (this._parsing) move(meta._parsed);
this.parse(start, count);
if (resetNewElements) this.updateElements(data, start, count, "reset");
}
updateElements(element, start, count, mode) {}
_removeElements(start, count) {
const meta = this._cachedMeta;
if (this._parsing) {
const removed = meta._parsed.splice(start, count);
if (meta._stacked) clearStacks(meta, removed);
}
meta.data.splice(start, count);
}
_sync(args) {
if (this._parsing) this._syncList.push(args);
else {
const [method, arg1, arg2] = args;
this[method](arg1, arg2);
}
this.chart._dataChanges.push([this.index, ...args]);
}
_onDataPush() {
const count = arguments.length;
this._sync([
"_insertElements",
this.getDataset().data.length - count,
count
]);
}
_onDataPop() {
this._sync([
"_removeElements",
this._cachedMeta.data.length - 1,
1
]);
}
_onDataShift() {
this._sync([
"_removeElements",
0,
1
]);
}
_onDataSplice(start, count) {
if (count) this._sync([
"_removeElements",
start,
count
]);
const newCount = arguments.length - 2;
if (newCount) this._sync([
"_insertElements",
start,
newCount
]);
}
_onDataUnshift() {
this._sync([
"_insertElements",
0,
arguments.length
]);
}
};
function getAllScaleValues(scale, type) {
if (!scale._cache.$bar) {
const visibleMetas = scale.getMatchingVisibleMetas(type);
let values = [];
for (let i = 0, ilen = visibleMetas.length; i < ilen; i++) values = values.concat(visibleMetas[i].controller.getAllParsedValues(scale));
scale._cache.$bar = _arrayUnique(values.sort((a, b) => a - b));
}
return scale._cache.$bar;
}
function computeMinSampleSize(meta) {
const scale = meta.iScale;
const values = getAllScaleValues(scale, meta.type);
let min = scale._length;
let i, ilen, curr, prev;
const updateMinAndPrev = () => {
if (curr === 32767 || curr === -32768) return;
if (defined(prev)) min = Math.min(min, Math.abs(curr - prev) || min);
prev = curr;
};
for (i = 0, ilen = values.length; i < ilen; ++i) {
curr = scale.getPixelForValue(values[i]);
updateMinAndPrev();
}
prev = void 0;
for (i = 0, ilen = scale.ticks.length; i < ilen; ++i) {
curr = scale.getPixelForTick(i);
updateMinAndPrev();
}
return min;
}
function computeFitCategoryTraits(index$1, ruler, options, stackCount) {
const thickness = options.barThickness;
let size, ratio;
if (isNullOrUndef(thickness)) {
size = ruler.min * options.categoryPercentage;
ratio = options.barPercentage;
} else {
size = thickness * stackCount;
ratio = 1;
}
return {
chunk: size / stackCount,
ratio,
start: ruler.pixels[index$1] - size / 2
};
}
function computeFlexCategoryTraits(index$1, ruler, options, stackCount) {
const pixels = ruler.pixels;
const curr = pixels[index$1];
let prev = index$1 > 0 ? pixels[index$1 - 1] : null;
let next = index$1 < pixels.length - 1 ? pixels[index$1 + 1] : null;
const percent = options.categoryPercentage;
if (prev === null) prev = curr - (next === null ? ruler.end - ruler.start : next - curr);
if (next === null) next = curr + curr - prev;
const start = curr - (curr - Math.min(prev, next)) / 2 * percent;
return {
chunk: Math.abs(next - prev) / 2 * percent / stackCount,
ratio: options.barPercentage,
start
};
}
function parseFloatBar(entry, item, vScale, i) {
const startValue = vScale.parse(entry[0], i);
const endValue = vScale.parse(entry[1], i);
const min = Math.min(startValue, endValue);
const max = Math.max(startValue, endValue);
let barStart = min;
let barEnd = max;
if (Math.abs(min) > Math.abs(max)) {
barStart = max;
barEnd = min;
}
item[vScale.axis] = barEnd;
item._custom = {
barStart,
barEnd,
start: startValue,
end: endValue,
min,
max
};
}
function parseValue(entry, item, vScale, i) {
if (isArray(entry)) parseFloatBar(entry, item, vScale, i);
else item[vScale.axis] = vScale.parse(entry, i);
return item;
}
function parseArrayOrPrimitive(meta, data, start, count) {
const iScale = meta.iScale;
const vScale = meta.vScale;
const labels = iScale.getLabels();
const singleScale = iScale === vScale;
const parsed = [];
let i, ilen, item, entry;
for (i = start, ilen = start + count; i < ilen; ++i) {
entry = data[i];
item = {};
item[iScale.axis] = singleScale || iScale.parse(labels[i], i);
parsed.push(parseValue(entry, item, vScale, i));
}
return parsed;
}
function isFloatBar(custom) {
return custom && custom.barStart !== void 0 && custom.barEnd !== void 0;
}
function barSign(size, vScale, actualBase) {
if (size !== 0) return sign(size);
return (vScale.isHorizontal() ? 1 : -1) * (vScale.min >= actualBase ? 1 : -1);
}
function borderProps(properties) {
let reverse, start, end, top, bottom;
if (properties.horizontal) {
reverse = properties.base > properties.x;
start = "left";
end = "right";
} else {
reverse = properties.base < properties.y;
start = "bottom";
end = "top";
}
if (reverse) {
top = "end";
bottom = "start";
} else {
top = "start";
bottom = "end";
}
return {
start,
end,
reverse,
top,
bottom
};
}
function setBorderSkipped(properties, options, stack, index$1) {
let edge = options.borderSkipped;
const res = {};
if (!edge) {
properties.borderSkipped = res;
return;
}
if (edge === true) {
properties.borderSkipped = {
top: true,
right: true,
bottom: true,
left: true
};
return;
}
const { start, end, reverse, top, bottom } = borderProps(properties);
if (edge === "middle" && stack) {
properties.enableBorderRadius = true;
if ((stack._top || 0) === index$1) edge = top;
else if ((stack._bottom || 0) === index$1) edge = bottom;
else {
res[parseEdge(bottom, start, end, reverse)] = true;
edge = top;
}
}
res[parseEdge(edge, start, end, reverse)] = true;
properties.borderSkipped = res;
}
function parseEdge(edge, a, b, reverse) {
if (reverse) {
edge = swap(edge, a, b);
edge = startEnd(edge, b, a);
} else edge = startEnd(edge, a, b);
return edge;
}
function swap(orig, v1, v2) {
return orig === v1 ? v2 : orig === v2 ? v1 : orig;
}
function startEnd(v, start, end) {
return v === "start" ? start : v === "end" ? end : v;
}
function setInflateAmount(properties, { inflateAmount }, ratio) {
properties.inflateAmount = inflateAmount === "auto" ? ratio === 1 ? .33 : 0 : inflateAmount;
}
var BarController = class extends DatasetController {
static id = "bar";
static defaults = {
datasetElementType: false,
dataElementType: "bar",
categoryPercentage: .8,
barPercentage: .9,
grouped: true,
animations: { numbers: {
type: "number",
properties: [
"x",
"y",
"base",
"width",
"height"
]
} }
};
static overrides = { scales: {
_index_: {
type: "category",
offset: true,
grid: { offset: true }
},
_value_: {
type: "linear",
beginAtZero: true
}
} };
parsePrimitiveData(meta, data, start, count) {
return parseArrayOrPrimitive(meta, data, start, count);
}
parseArrayData(meta, data, start, count) {
return parseArrayOrPrimitive(meta, data, start, count);
}
parseObjectData(meta, data, start, count) {
const { iScale, vScale } = meta;
const { xAxisKey = "x", yAxisKey = "y" } = this._parsing;
const iAxisKey = iScale.axis === "x" ? xAxisKey : yAxisKey;
const vAxisKey = vScale.axis === "x" ? xAxisKey : yAxisKey;
const parsed = [];
let i, ilen, item, obj;
for (i = start, ilen = start + count; i < ilen; ++i) {
obj = data[i];
item = {};
item[iScale.axis] = iScale.parse(resolveObjectKey(obj, iAxisKey), i);
parsed.push(parseValue(resolveObjectKey(obj, vAxisKey), item, vScale, i));
}
return parsed;
}
updateRangeFromParsed(range, scale, parsed, stack) {
super.updateRangeFromParsed(range, scale, parsed, stack);
const custom = parsed._custom;
if (custom && scale === this._cachedMeta.vScale) {
range.min = Math.min(range.min, custom.min);
range.max = Math.max(range.max, custom.max);
}
}
getMaxOverflow() {
return 0;
}
getLabelAndValue(index$1) {
const { iScale, vScale } = this._cachedMeta;
const parsed = this.getParsed(index$1);
const custom = parsed._custom;
const value = isFloatBar(custom) ? "[" + custom.start + ", " + custom.end + "]" : "" + vScale.getLabelForValue(parsed[vScale.axis]);
return {
label: "" + iScale.getLabelForValue(parsed[iScale.axis]),
value
};
}
initialize() {
this.enableOptionSharing = true;
super.initialize();
const meta = this._cachedMeta;
meta.stack = this.getDataset().stack;
}
update(mode) {
const meta = this._cachedMeta;
this.updateElements(meta.data, 0, meta.data.length, mode);
}
updateElements(bars, start, count, mode) {
const reset = mode === "reset";
const { index: index$1, _cachedMeta: { vScale } } = this;
const base = vScale.getBasePixel();
const horizontal = vScale.isHorizontal();
const ruler = this._getRuler();
const { sharedOptions, includeOptions } = this._getSharedOptions(start, mode);
for (let i = start; i < start + count; i++) {
const parsed = this.getParsed(i);
const vpixels = reset || isNullOrUndef(parsed[vScale.axis]) ? {
base,
head: base
} : this._calculateBarValuePixels(i);
const ipixels = this._calculateBarIndexPixels(i, ruler);
const stack = (parsed._stacks || {})[vScale.axis];
const properties = {
horizontal,
base: vpixels.base,
enableBorderRadius: !stack || isFloatBar(parsed._custom) || index$1 === stack._top || index$1 === stack._bottom,
x: horizontal ? vpixels.head : ipixels.center,
y: horizontal ? ipixels.center : vpixels.head,
height: horizontal ? ipixels.size : Math.abs(vpixels.size),
width: horizontal ? Math.abs(vpixels.size) : ipixels.size
};
if (includeOptions) properties.options = sharedOptions || this.resolveDataElementOptions(i, bars[i].active ? "active" : mode);
const options = properties.options || bars[i].options;
setBorderSkipped(properties, options, stack, index$1);
setInflateAmount(properties, options, ruler.ratio);
this.updateElement(bars[i], i, properties, mode);
}
}
_getStacks(last, dataIndex) {
const { iScale } = this._cachedMeta;
const metasets = iScale.getMatchingVisibleMetas(this._type).filter((meta) => meta.controller.options.grouped);
const stacked = iScale.options.stacked;
const stacks = [];
const skipNull = (meta) => {
const parsed = meta.controller.getParsed(dataIndex);
const val = parsed && parsed[meta.vScale.axis];
if (isNullOrUndef(val) || isNaN(val)) return true;
};
for (const meta of metasets) {
if (dataIndex !== void 0 && skipNull(meta)) continue;
if (stacked === false || stacks.indexOf(meta.stack) === -1 || stacked === void 0 && meta.stack === void 0) stacks.push(meta.stack);
if (meta.index === last) break;
}
if (!stacks.length) stacks.push(void 0);
return stacks;
}
_getStackCount(index$1) {
return this._getStacks(void 0, index$1).length;
}
_getStackIndex(datasetIndex, name, dataIndex) {
const stacks = this._getStacks(datasetIndex, dataIndex);
const index$1 = name !== void 0 ? stacks.indexOf(name) : -1;
return index$1 === -1 ? stacks.length - 1 : index$1;
}
_getRuler() {
const opts = this.options;
const meta = this._cachedMeta;
const iScale = meta.iScale;
const pixels = [];
let i, ilen;
for (i = 0, ilen = meta.data.length; i < ilen; ++i) pixels.push(iScale.getPixelForValue(this.getParsed(i)[iScale.axis], i));
const barThickness = opts.barThickness;
return {
min: barThickness || computeMinSampleSize(meta),
pixels,
start: iScale._startPixel,
end: iScale._endPixel,
stackCount: this._getStackCount(),
scale: iScale,
grouped: opts.grouped,
ratio: barThickness ? 1 : opts.categoryPercentage * opts.barPercentage
};
}
_calculateBarValuePixels(index$1) {
const { _cachedMeta: { vScale, _stacked, index: datasetIndex }, options: { base: baseValue, minBarLength } } = this;
const actualBase = baseValue || 0;
const parsed = this.getParsed(index$1);
const custom = parsed._custom;
const floating = isFloatBar(custom);
let value = parsed[vScale.axis];
let start = 0;
let length = _stacked ? this.applyStack(vScale, parsed, _stacked) : value;
let head, size;
if (length !== value) {
start = length - value;
length = value;
}
if (floating) {
value = custom.barStart;
length = custom.barEnd - custom.barStart;
if (value !== 0 && sign(value) !== sign(custom.barEnd)) start = 0;
start += value;
}
const startValue = !isNullOrUndef(baseValue) && !floating ? baseValue : start;
let base = vScale.getPixelForValue(startValue);
if (this.chart.getDataVisibility(index$1)) head = vScale.getPixelForValue(start + length);
else head = base;
size = head - base;
if (Math.abs(size) < minBarLength) {
size = barSign(size, vScale, actualBase) * minBarLength;
if (value === actualBase) base -= size / 2;
const startPixel = vScale.getPixelForDecimal(0);
const endPixel = vScale.getPixelForDecimal(1);
const min = Math.min(startPixel, endPixel);
const max = Math.max(startPixel, endPixel);
base = Math.max(Math.min(base, max), min);
head = base + size;
if (_stacked && !floating) parsed._stacks[vScale.axis]._visualValues[datasetIndex] = vScale.getValueForPixel(head) - vScale.getValueForPixel(base);
}
if (base === vScale.getPixelForValue(actualBase)) {
const halfGrid = sign(size) * vScale.getLineWidthForValue(actualBase) / 2;
base += halfGrid;
size -= halfGrid;
}
return {
size,
base,
head,
center: head + size / 2
};
}
_calculateBarIndexPixels(index$1, ruler) {
const scale = ruler.scale;
const options = this.options;
const skipNull = options.skipNull;
const maxBarThickness = valueOrDefault(options.maxBarThickness, Infinity);
let center, size;
if (ruler.grouped) {
const stackCount = skipNull ? this._getStackCount(index$1) : ruler.stackCount;
const range = options.barThickness === "flex" ? computeFlexCategoryTraits(index$1, ruler, options, stackCount) : computeFitCategoryTraits(index$1, ruler, options, stackCount);
const stackIndex = this._getStackIndex(this.index, this._cachedMeta.stack, skipNull ? index$1 : void 0);
center = range.start + range.chunk * stackIndex + range.chunk / 2;
size = Math.min(maxBarThickness, range.chunk * range.ratio);
} else {
center = scale.getPixelForValue(this.getParsed(index$1)[scale.axis], index$1);
size = Math.min(maxBarThickness, ruler.min * ruler.ratio);
}
return {
base: center - size / 2,
head: center + size / 2,
center,
size
};
}
draw() {
const meta = this._cachedMeta;
const vScale = meta.vScale;
const rects = meta.data;
const ilen = rects.length;
let i = 0;
for (; i < ilen; ++i) if (this.getParsed(i)[vScale.axis] !== null) rects[i].draw(this._ctx);
}
};
var LineController = class extends DatasetController {
static id = "line";
static defaults = {
datasetElementType: "line",
dataElementType: "point",
showLine: true,
spanGaps: false
};
static overrides = { scales: {
_index_: { type: "category" },
_value_: { type: "linear" }
} };
initialize() {
this.enableOptionSharing = true;
this.supportsDecimation = true;
super.initialize();
}
update(mode) {
const meta = this._cachedMeta;
const { dataset: line, data: points = [], _dataset } = meta;
const animationsDisabled = this.chart._animationsDisabled;
let { start, count } = _getStartAndCountOfVisiblePoints(meta, points, animationsDisabled);
this._drawStart = start;
this._drawCount = count;
if (_scaleRangesChanged(meta)) {
start = 0;
count = points.length;
}
line._chart = this.chart;
line._datasetIndex = this.index;
line._decimated = !!_dataset._decimated;
line.points = points;
const options = this.resolveDatasetElementOptions(mode);
if (!this.options.showLine) options.borderWidth = 0;
options.segment = this.options.segment;
this.updateElement(line, void 0, {
animated: !animationsDisabled,
options
}, mode);
this.updateElements(points, start, count, mode);
}
updateElements(points, start, count, mode) {
const reset = mode === "reset";
const { iScale, vScale, _stacked, _dataset } = this._cachedMeta;
const { sharedOptions, includeOptions } = this._getSharedOptions(start, mode);
const iAxis = iScale.axis;
const vAxis = vScale.axis;
const { spanGaps, segment } = this.options;
const maxGapLength = isNumber(spanGaps) ? spanGaps : Number.POSITIVE_INFINITY;
const directUpdate = this.chart._animationsDisabled || reset || mode === "none";
const end = start + count;
const pointsCount = points.length;
let prevParsed = start > 0 && this.getParsed(start - 1);
for (let i = 0; i < pointsCount; ++i) {
const point = points[i];
const properties = directUpdate ? point : {};
if (i < start || i >= end) {
properties.skip = true;
continue;
}
const parsed = this.getParsed(i);
const nullData = isNullOrUndef(parsed[vAxis]);
const iPixel = properties[iAxis] = iScale.getPixelForValue(parsed[iAxis], i);
const vPixel = properties[vAxis] = reset || nullData ? vScale.getBasePixel() : vScale.getPixelForValue(_stacked ? this.applyStack(vScale, parsed, _stacked) : parsed[vAxis], i);
properties.skip = isNaN(iPixel) || isNaN(vPixel) || nullData;
properties.stop = i > 0 && Math.abs(parsed[iAxis] - prevParsed[iAxis]) > maxGapLength;
if (segment) {
properties.parsed = parsed;
properties.raw = _dataset.data[i];
}
if (includeOptions) properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? "active" : mode);
if (!directUpdate) this.updateElement(point, i, properties, mode);
prevParsed = parsed;
}
}
getMaxOverflow() {
const meta = this._cachedMeta;
const dataset = meta.dataset;
const border = dataset.options && dataset.options.borderWidth || 0;
const data = meta.data || [];
if (!data.length) return border;
const firstPoint = data[0].size(this.resolveDataElementOptions(0));
const lastPoint = data[data.length - 1].size(this.resolveDataElementOptions(data.length - 1));
return Math.max(border, firstPoint, lastPoint) / 2;
}
draw() {
const meta = this._cachedMeta;
meta.dataset.updateControlPoints(this.chart.chartArea, meta.iScale.axis);
super.draw();
}
};
function abstract() {
throw new Error("This method is not implemented: Check that a complete date adapter is provided.");
}
var adapters = { _date: class DateAdapterBase {
static override(members) {
Object.assign(DateAdapterBase.prototype, members);
}
options;
constructor(options) {
this.options = options || {};
}
init() {}
formats() {
return abstract();
}
parse() {
return abstract();
}
format() {
return abstract();
}
add() {
return abstract();
}
diff() {
return abstract();
}
startOf() {
return abstract();
}
endOf() {
return abstract();
}
} };
function binarySearch(metaset, axis, value, intersect) {
const { controller, data, _sorted } = metaset;
const iScale = controller._cachedMeta.iScale;
if (iScale && axis === iScale.axis && axis !== "r" && _sorted && data.length) {
const lookupMethod = iScale._reversePixels ? _rlookupByKey : _lookupByKey;
if (!intersect) return lookupMethod(data, axis, value);
else if (controller._sharedOptions) {
const el = data[0];
const range = typeof el.getRange === "function" && el.getRange(axis);
if (range) {
const start = lookupMethod(data, axis, value - range);
const end = lookupMethod(data, axis, value + range);
return {
lo: start.lo,
hi: end.hi
};
}
}
}
return {
lo: 0,
hi: data.length - 1
};
}
function evaluateInteractionItems(chart, axis, position, handler, intersect) {
const metasets = chart.getSortedVisibleDatasetMetas();
const value = position[axis];
for (let i = 0, ilen = metasets.length; i < ilen; ++i) {
const { index: index$1, data } = metasets[i];
const { lo, hi } = binarySearch(metasets[i], axis, value, intersect);
for (let j = lo; j <= hi; ++j) {
const element = data[j];
if (!element.skip) handler(element, index$1, j);
}
}
}
function getDistanceMetricForAxis(axis) {
const useX = axis.indexOf("x") !== -1;
const useY = axis.indexOf("y") !== -1;
return function(pt1, pt2) {
const deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0;
const deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0;
return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2));
};
}
function getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) {
const items = [];
if (!includeInvisible && !chart.isPointInArea(position)) return items;
const evaluationFunc = function(element, datasetIndex, index$1) {
if (!includeInvisible && !_isPointInArea(element, chart.chartArea, 0)) return;
if (element.inRange(position.x, position.y, useFinalPosition)) items.push({
element,
datasetIndex,
index: index$1
});
};
evaluateInteractionItems(chart, axis, position, evaluationFunc, true);
return items;
}
function getNearestRadialItems(chart, position, axis, useFinalPosition) {
let items = [];
function evaluationFunc(element, datasetIndex, index$1) {
const { startAngle, endAngle } = element.getProps(["startAngle", "endAngle"], useFinalPosition);
const { angle } = getAngleFromPoint(element, {
x: position.x,
y: position.y
});
if (_angleBetween(angle, startAngle, endAngle)) items.push({
element,
datasetIndex,
index: index$1
});
}
evaluateInteractionItems(chart, axis, position, evaluationFunc);
return items;
}
function getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition, includeInvisible) {
let items = [];
const distanceMetric = getDistanceMetricForAxis(axis);
let minDistance = Number.POSITIVE_INFINITY;
function evaluationFunc(element, datasetIndex, index$1) {
const inRange$2 = element.inRange(position.x, position.y, useFinalPosition);
if (intersect && !inRange$2) return;
const center = element.getCenterPoint(useFinalPosition);
if (!(!!includeInvisible || chart.isPointInArea(center)) && !inRange$2) return;
const distance = distanceMetric(position, center);
if (distance < minDistance) {
items = [{
element,
datasetIndex,
index: index$1
}];
minDistance = distance;
} else if (distance === minDistance) items.push({
element,
datasetIndex,
index: index$1
});
}
evaluateInteractionItems(chart, axis, position, evaluationFunc);
return items;
}
function getNearestItems(chart, position, axis, intersect, useFinalPosition, includeInvisible) {
if (!includeInvisible && !chart.isPointInArea(position)) return [];
return axis === "r" && !intersect ? getNearestRadialItems(chart, position, axis, useFinalPosition) : getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition, includeInvisible);
}
function getAxisItems(chart, position, axis, intersect, useFinalPosition) {
const items = [];
const rangeMethod = axis === "x" ? "inXRange" : "inYRange";
let intersectsItem = false;
evaluateInteractionItems(chart, axis, position, (element, datasetIndex, index$1) => {
if (element[rangeMethod](position[axis], useFinalPosition)) {
items.push({
element,
datasetIndex,
index: index$1
});
intersectsItem = intersectsItem || element.inRange(position.x, position.y, useFinalPosition);
}
});
if (intersect && !intersectsItem) return [];
return items;
}
var Interaction = {
evaluateInteractionItems,
modes: {
index(chart, e, options, useFinalPosition) {
const position = getRelativePosition(e, chart);
const axis = options.axis || "x";
const includeInvisible = options.includeInvisible || false;
const items = options.intersect ? getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) : getNearestItems(chart, position, axis, false, useFinalPosition, includeInvisible);
const elements = [];
if (!items.length) return [];
chart.getSortedVisibleDatasetMetas().forEach((meta) => {
const index$1 = items[0].index;
const element = meta.data[index$1];
if (element && !element.skip) elements.push({
element,
datasetIndex: meta.index,
index: index$1
});
});
return elements;
},
dataset(chart, e, options, useFinalPosition) {
const position = getRelativePosition(e, chart);
const axis = options.axis || "xy";
const includeInvisible = options.includeInvisible || false;
let items = options.intersect ? getIntersectItems(chart, position, axis, useFinalPosition, includeInvisible) : getNearestItems(chart, position, axis, false, useFinalPosition, includeInvisible);
if (items.length > 0) {
const datasetIndex = items[0].datasetIndex;
const data = chart.getDatasetMeta(datasetIndex).data;
items = [];
for (let i = 0; i < data.length; ++i) items.push({
element: data[i],
datasetIndex,
index: i
});
}
return items;
},
point(chart, e, options, useFinalPosition) {
return getIntersectItems(chart, getRelativePosition(e, chart), options.axis || "xy", useFinalPosition, options.includeInvisible || false);
},
nearest(chart, e, options, useFinalPosition) {
const position = getRelativePosition(e, chart);
const axis = options.axis || "xy";
const includeInvisible = options.includeInvisible || false;
return getNearestItems(chart, position, axis, options.intersect, useFinalPosition, includeInvisible);
},
x(chart, e, options, useFinalPosition) {
return getAxisItems(chart, getRelativePosition(e, chart), "x", options.intersect, useFinalPosition);
},
y(chart, e, options, useFinalPosition) {
return getAxisItems(chart, getRelativePosition(e, chart), "y", options.intersect, useFinalPosition);
}
}
};
var STATIC_POSITIONS = [
"left",
"top",
"right",
"bottom"
];
function filterByPosition(array, position) {
return array.filter((v) => v.pos === position);
}
function filterDynamicPositionByAxis(array, axis) {
return array.filter((v) => STATIC_POSITIONS.indexOf(v.pos) === -1 && v.box.axis === axis);
}
function sortByWeight(array, reverse) {
return array.sort((a, b) => {
const v0 = reverse ? b : a;
const v1 = reverse ? a : b;
return v0.weight === v1.weight ? v0.index - v1.index : v0.weight - v1.weight;
});
}
function wrapBoxes(boxes) {
const layoutBoxes = [];
let i, ilen, box, pos, stack, stackWeight;
for (i = 0, ilen = (boxes || []).length; i < ilen; ++i) {
box = boxes[i];
({position: pos, options: {stack, stackWeight = 1}} = box);
layoutBoxes.push({
index: i,
box,
pos,
horizontal: box.isHorizontal(),
weight: box.weight,
stack: stack && pos + stack,
stackWeight
});
}
return layoutBoxes;
}
function buildStacks(layouts$1) {
const stacks = {};
for (const wrap of layouts$1) {
const { stack, pos, stackWeight } = wrap;
if (!stack || !STATIC_POSITIONS.includes(pos)) continue;
const _stack = stacks[stack] || (stacks[stack] = {
count: 0,
placed: 0,
weight: 0,
size: 0
});
_stack.count++;
_stack.weight += stackWeight;
}
return stacks;
}
function setLayoutDims(layouts$1, params) {
const stacks = buildStacks(layouts$1);
const { vBoxMaxWidth, hBoxMaxHeight } = params;
let i, ilen, layout;
for (i = 0, ilen = layouts$1.length; i < ilen; ++i) {
layout = layouts$1[i];
const { fullSize } = layout.box;
const stack = stacks[layout.stack];
const factor = stack && layout.stackWeight / stack.weight;
if (layout.horizontal) {
layout.width = factor ? factor * vBoxMaxWidth : fullSize && params.availableWidth;
layout.height = hBoxMaxHeight;
} else {
layout.width = vBoxMaxWidth;
layout.height = factor ? factor * hBoxMaxHeight : fullSize && params.availableHeight;
}
}
return stacks;
}
function buildLayoutBoxes(boxes) {
const layoutBoxes = wrapBoxes(boxes);
const fullSize = sortByWeight(layoutBoxes.filter((wrap) => wrap.box.fullSize), true);
const left = sortByWeight(filterByPosition(layoutBoxes, "left"), true);
const right = sortByWeight(filterByPosition(layoutBoxes, "right"));
const top = sortByWeight(filterByPosition(layoutBoxes, "top"), true);
const bottom = sortByWeight(filterByPosition(layoutBoxes, "bottom"));
const centerHorizontal = filterDynamicPositionByAxis(layoutBoxes, "x");
const centerVertical = filterDynamicPositionByAxis(layoutBoxes, "y");
return {
fullSize,
leftAndTop: left.concat(top),
rightAndBottom: right.concat(centerVertical).concat(bottom).concat(centerHorizontal),
chartArea: filterByPosition(layoutBoxes, "chartArea"),
vertical: left.concat(right).concat(centerVertical),
horizontal: top.concat(bottom).concat(centerHorizontal)
};
}
function getCombinedMax(maxPadding, chartArea, a, b) {
return Math.max(maxPadding[a], chartArea[a]) + Math.max(maxPadding[b], chartArea[b]);
}
function updateMaxPadding(maxPadding, boxPadding) {
maxPadding.top = Math.max(maxPadding.top, boxPadding.top);
maxPadding.left = Math.max(maxPadding.left, boxPadding.left);
maxPadding.bottom = Math.max(maxPadding.bottom, boxPadding.bottom);
maxPadding.right = Math.max(maxPadding.right, boxPadding.right);
}
function updateDims(chartArea, params, layout, stacks) {
const { pos, box } = layout;
const maxPadding = chartArea.maxPadding;
if (!isObject(pos)) {
if (layout.size) chartArea[pos] -= layout.size;
const stack = stacks[layout.stack] || {
size: 0,
count: 1
};
stack.size = Math.max(stack.size, layout.horizontal ? box.height : box.width);
layout.size = stack.size / stack.count;
chartArea[pos] += layout.size;
}
if (box.getPadding) updateMaxPadding(maxPadding, box.getPadding());
const newWidth = Math.max(0, params.outerWidth - getCombinedMax(maxPadding, chartArea, "left", "right"));
const newHeight = Math.max(0, params.outerHeight - getCombinedMax(maxPadding, chartArea, "top", "bottom"));
const widthChanged = newWidth !== chartArea.w;
const heightChanged = newHeight !== chartArea.h;
chartArea.w = newWidth;
chartArea.h = newHeight;
return layout.horizontal ? {
same: widthChanged,
other: heightChanged
} : {
same: heightChanged,
other: widthChanged
};
}
function handleMaxPadding(chartArea) {
const maxPadding = chartArea.maxPadding;
function updatePos(pos) {
const change = Math.max(maxPadding[pos] - chartArea[pos], 0);
chartArea[pos] += change;
return change;
}
chartArea.y += updatePos("top");
chartArea.x += updatePos("left");
updatePos("right");
updatePos("bottom");
}
function getMargins(horizontal, chartArea) {
const maxPadding = chartArea.maxPadding;
function marginForPositions(positions$1) {
const margin = {
left: 0,
top: 0,
right: 0,
bottom: 0
};
positions$1.forEach((pos) => {
margin[pos] = Math.max(chartArea[pos], maxPadding[pos]);
});
return margin;
}
return horizontal ? marginForPositions(["left", "right"]) : marginForPositions(["top", "bottom"]);
}
function fitBoxes(boxes, chartArea, params, stacks) {
const refitBoxes = [];
let i, ilen, layout, box, refit, changed;
for (i = 0, ilen = boxes.length, refit = 0; i < ilen; ++i) {
layout = boxes[i];
box = layout.box;
box.update(layout.width || chartArea.w, layout.height || chartArea.h, getMargins(layout.horizontal, chartArea));
const { same, other } = updateDims(chartArea, params, layout, stacks);
refit |= same && refitBoxes.length;
changed = changed || other;
if (!box.fullSize) refitBoxes.push(layout);
}
return refit && fitBoxes(refitBoxes, chartArea, params, stacks) || changed;
}
function setBoxDims(box, left, top, width, height) {
box.top = top;
box.left = left;
box.right = left + width;
box.bottom = top + height;
box.width = width;
box.height = height;
}
function placeBoxes(boxes, chartArea, params, stacks) {
const userPadding = params.padding;
let { x, y } = chartArea;
for (const layout of boxes) {
const box = layout.box;
const stack = stacks[layout.stack] || {
count: 1,
placed: 0,
weight: 1
};
const weight = layout.stackWeight / stack.weight || 1;
if (layout.horizontal) {
const width = chartArea.w * weight;
const height = stack.size || box.height;
if (defined(stack.start)) y = stack.start;
if (box.fullSize) setBoxDims(box, userPadding.left, y, params.outerWidth - userPadding.right - userPadding.left, height);
else setBoxDims(box, chartArea.left + stack.placed, y, width, height);
stack.start = y;
stack.placed += width;
y = box.bottom;
} else {
const height = chartArea.h * weight;
const width = stack.size || box.width;
if (defined(stack.start)) x = stack.start;
if (box.fullSize) setBoxDims(box, x, userPadding.top, width, params.outerHeight - userPadding.bottom - userPadding.top);
else setBoxDims(box, x, chartArea.top + stack.placed, width, height);
stack.start = x;
stack.placed += height;
x = box.right;
}
}
chartArea.x = x;
chartArea.y = y;
}
var layouts = {
addBox(chart, item) {
if (!chart.boxes) chart.boxes = [];
item.fullSize = item.fullSize || false;
item.position = item.position || "top";
item.weight = item.weight || 0;
item._layers = item._layers || function() {
return [{
z: 0,
draw(chartArea) {
item.draw(chartArea);
}
}];
};
chart.boxes.push(item);
},
removeBox(chart, layoutItem) {
const index$1 = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1;
if (index$1 !== -1) chart.boxes.splice(index$1, 1);
},
configure(chart, item, options) {
item.fullSize = options.fullSize;
item.position = options.position;
item.weight = options.weight;
},
update(chart, width, height, minPadding) {
if (!chart) return;
const padding = toPadding(chart.options.layout.padding);
const availableWidth = Math.max(width - padding.width, 0);
const availableHeight = Math.max(height - padding.height, 0);
const boxes = buildLayoutBoxes(chart.boxes);
const verticalBoxes = boxes.vertical;
const horizontalBoxes = boxes.horizontal;
each(chart.boxes, (box) => {
if (typeof box.beforeLayout === "function") box.beforeLayout();
});
const visibleVerticalBoxCount = verticalBoxes.reduce((total, wrap) => wrap.box.options && wrap.box.options.display === false ? total : total + 1, 0) || 1;
const params = Object.freeze({
outerWidth: width,
outerHeight: height,
padding,
availableWidth,
availableHeight,
vBoxMaxWidth: availableWidth / 2 / visibleVerticalBoxCount,
hBoxMaxHeight: availableHeight / 2
});
const maxPadding = Object.assign({}, padding);
updateMaxPadding(maxPadding, toPadding(minPadding));
const chartArea = Object.assign({
maxPadding,
w: availableWidth,
h: availableHeight,
x: padding.left,
y: padding.top
}, padding);
const stacks = setLayoutDims(verticalBoxes.concat(horizontalBoxes), params);
fitBoxes(boxes.fullSize, chartArea, params, stacks);
fitBoxes(verticalBoxes, chartArea, params, stacks);
if (fitBoxes(horizontalBoxes, chartArea, params, stacks)) fitBoxes(verticalBoxes, chartArea, params, stacks);
handleMaxPadding(chartArea);
placeBoxes(boxes.leftAndTop, chartArea, params, stacks);
chartArea.x += chartArea.w;
chartArea.y += chartArea.h;
placeBoxes(boxes.rightAndBottom, chartArea, params, stacks);
chart.chartArea = {
left: chartArea.left,
top: chartArea.top,
right: chartArea.left + chartArea.w,
bottom: chartArea.top + chartArea.h,
height: chartArea.h,
width: chartArea.w
};
each(boxes.chartArea, (layout) => {
const box = layout.box;
Object.assign(box, chart.chartArea);
box.update(chartArea.w, chartArea.h, {
left: 0,
top: 0,
right: 0,
bottom: 0
});
});
}
};
var BasePlatform = class {
acquireContext(canvas, aspectRatio) {}
releaseContext(context) {
return false;
}
addEventListener(chart, type, listener) {}
removeEventListener(chart, type, listener) {}
getDevicePixelRatio() {
return 1;
}
getMaximumSize(element, width, height, aspectRatio) {
width = Math.max(0, width || element.width);
height = height || element.height;
return {
width,
height: Math.max(0, aspectRatio ? Math.floor(width / aspectRatio) : height)
};
}
isAttached(canvas) {
return true;
}
updateConfig(config) {}
};
var BasicPlatform = class extends BasePlatform {
acquireContext(item) {
return item && item.getContext && item.getContext("2d") || null;
}
updateConfig(config) {
config.options.animation = false;
}
};
var EXPANDO_KEY = "$chartjs";
var EVENT_TYPES = {
touchstart: "mousedown",
touchmove: "mousemove",
touchend: "mouseup",
pointerenter: "mouseenter",
pointerdown: "mousedown",
pointermove: "mousemove",
pointerup: "mouseup",
pointerleave: "mouseout",
pointerout: "mouseout"
};
var isNullOrEmpty = (value) => value === null || value === "";
function initCanvas(canvas, aspectRatio) {
const style = canvas.style;
const renderHeight = canvas.getAttribute("height");
const renderWidth = canvas.getAttribute("width");
canvas[EXPANDO_KEY] = { initial: {
height: renderHeight,
width: renderWidth,
style: {
display: style.display,
height: style.height,
width: style.width
}
} };
style.display = style.display || "block";
style.boxSizing = style.boxSizing || "border-box";
if (isNullOrEmpty(renderWidth)) {
const displayWidth = readUsedSize(canvas, "width");
if (displayWidth !== void 0) canvas.width = displayWidth;
}
if (isNullOrEmpty(renderHeight)) if (canvas.style.height === "") canvas.height = canvas.width / (aspectRatio || 2);
else {
const displayHeight = readUsedSize(canvas, "height");
if (displayHeight !== void 0) canvas.height = displayHeight;
}
return canvas;
}
var eventListenerOptions = supportsEventListenerOptions ? { passive: true } : false;
function addListener(node, type, listener) {
node.addEventListener(type, listener, eventListenerOptions);
}
function removeListener(chart, type, listener) {
chart.canvas.removeEventListener(type, listener, eventListenerOptions);
}
function fromNativeEvent(event, chart) {
const type = EVENT_TYPES[event.type] || event.type;
const { x, y } = getRelativePosition(event, chart);
return {
type,
chart,
native: event,
x: x !== void 0 ? x : null,
y: y !== void 0 ? y : null
};
}
function nodeListContains(nodeList, canvas) {
for (const node of nodeList) if (node === canvas || node.contains(canvas)) return true;
}
function createAttachObserver(chart, type, listener) {
const canvas = chart.canvas;
const observer = new MutationObserver((entries) => {
let trigger = false;
for (const entry of entries) {
trigger = trigger || nodeListContains(entry.addedNodes, canvas);
trigger = trigger && !nodeListContains(entry.removedNodes, canvas);
}
if (trigger) listener();
});
observer.observe(document, {
childList: true,
subtree: true
});
return observer;
}
function createDetachObserver(chart, type, listener) {
const canvas = chart.canvas;
const observer = new MutationObserver((entries) => {
let trigger = false;
for (const entry of entries) {
trigger = trigger || nodeListContains(entry.removedNodes, canvas);
trigger = trigger && !nodeListContains(entry.addedNodes, canvas);
}
if (trigger) listener();
});
observer.observe(document, {
childList: true,
subtree: true
});
return observer;
}
var drpListeningCharts = /* @__PURE__ */ new Map();
var oldDevicePixelRatio = 0;
function onWindowResize() {
const dpr = window.devicePixelRatio;
if (dpr === oldDevicePixelRatio) return;
oldDevicePixelRatio = dpr;
drpListeningCharts.forEach((resize, chart) => {
if (chart.currentDevicePixelRatio !== dpr) resize();
});
}
function listenDevicePixelRatioChanges(chart, resize) {
if (!drpListeningCharts.size) window.addEventListener("resize", onWindowResize);
drpListeningCharts.set(chart, resize);
}
function unlistenDevicePixelRatioChanges(chart) {
drpListeningCharts.delete(chart);
if (!drpListeningCharts.size) window.removeEventListener("resize", onWindowResize);
}
function createResizeObserver(chart, type, listener) {
const canvas = chart.canvas;
const container = canvas && _getParentNode(canvas);
if (!container) return;
const resize = throttled((width, height) => {
const w = container.clientWidth;
listener(width, height);
if (w < container.clientWidth) listener();
}, window);
const observer = new ResizeObserver((entries) => {
const entry = entries[0];
const width = entry.contentRect.width;
const height = entry.contentRect.height;
if (width === 0 && height === 0) return;
resize(width, height);
});
observer.observe(container);
listenDevicePixelRatioChanges(chart, resize);
return observer;
}
function releaseObserver(chart, type, observer) {
if (observer) observer.disconnect();
if (type === "resize") unlistenDevicePixelRatioChanges(chart);
}
function createProxyAndListen(chart, type, listener) {
const canvas = chart.canvas;
const proxy = throttled((event) => {
if (chart.ctx !== null) listener(fromNativeEvent(event, chart));
}, chart);
addListener(canvas, type, proxy);
return proxy;
}
var DomPlatform = class extends BasePlatform {
acquireContext(canvas, aspectRatio) {
const context = canvas && canvas.getContext && canvas.getContext("2d");
if (context && context.canvas === canvas) {
initCanvas(canvas, aspectRatio);
return context;
}
return null;
}
releaseContext(context) {
const canvas = context.canvas;
if (!canvas[EXPANDO_KEY]) return false;
const initial = canvas[EXPANDO_KEY].initial;
["height", "width"].forEach((prop) => {
const value = initial[prop];
if (isNullOrUndef(value)) canvas.removeAttribute(prop);
else canvas.setAttribute(prop, value);
});
const style = initial.style || {};
Object.keys(style).forEach((key) => {
canvas.style[key] = style[key];
});
canvas.width = canvas.width;
delete canvas[EXPANDO_KEY];
return true;
}
addEventListener(chart, type, listener) {
this.removeEventListener(chart, type);
const proxies = chart.$proxies || (chart.$proxies = {});
proxies[type] = ({
attach: createAttachObserver,
detach: createDetachObserver,
resize: createResizeObserver
}[type] || createProxyAndListen)(chart, type, listener);
}
removeEventListener(chart, type) {
const proxies = chart.$proxies || (chart.$proxies = {});
const proxy = proxies[type];
if (!proxy) return;
({
attach: releaseObserver,
detach: releaseObserver,
resize: releaseObserver
}[type] || removeListener)(chart, type, proxy);
proxies[type] = void 0;
}
getDevicePixelRatio() {
return window.devicePixelRatio;
}
getMaximumSize(canvas, width, height, aspectRatio) {
return getMaximumSize(canvas, width, height, aspectRatio);
}
isAttached(canvas) {
const container = _getParentNode(canvas);
return !!(container && container.isConnected);
}
};
function _detectPlatform(canvas) {
if (!_isDomSupported() || typeof OffscreenCanvas !== "undefined" && canvas instanceof OffscreenCanvas) return BasicPlatform;
return DomPlatform;
}
var Element = class {
static defaults = {};
static defaultRoutes = void 0;
x;
y;
active = false;
options;
$animations;
tooltipPosition(useFinalPosition) {
const { x, y } = this.getProps(["x", "y"], useFinalPosition);
return {
x,
y
};
}
hasValue() {
return isNumber(this.x) && isNumber(this.y);
}
getProps(props, final) {
const anims = this.$animations;
if (!final || !anims) return this;
const ret = {};
props.forEach((prop) => {
ret[prop] = anims[prop] && anims[prop].active() ? anims[prop]._to : this[prop];
});
return ret;
}
};
function autoSkip(scale, ticks) {
const tickOpts = scale.options.ticks;
const determinedMaxTicks = determineMaxTicks(scale);
const ticksLimit = Math.min(tickOpts.maxTicksLimit || determinedMaxTicks, determinedMaxTicks);
const majorIndices = tickOpts.major.enabled ? getMajorIndices(ticks) : [];
const numMajorIndices = majorIndices.length;
const first = majorIndices[0];
const last = majorIndices[numMajorIndices - 1];
const newTicks = [];
if (numMajorIndices > ticksLimit) {
skipMajors(ticks, newTicks, majorIndices, numMajorIndices / ticksLimit);
return newTicks;
}
const spacing = calculateSpacing(majorIndices, ticks, ticksLimit);
if (numMajorIndices > 0) {
let i, ilen;
const avgMajorSpacing = numMajorIndices > 1 ? Math.round((last - first) / (numMajorIndices - 1)) : null;
skip(ticks, newTicks, spacing, isNullOrUndef(avgMajorSpacing) ? 0 : first - avgMajorSpacing, first);
for (i = 0, ilen = numMajorIndices - 1; i < ilen; i++) skip(ticks, newTicks, spacing, majorIndices[i], majorIndices[i + 1]);
skip(ticks, newTicks, spacing, last, isNullOrUndef(avgMajorSpacing) ? ticks.length : last + avgMajorSpacing);
return newTicks;
}
skip(ticks, newTicks, spacing);
return newTicks;
}
function determineMaxTicks(scale) {
const offset = scale.options.offset;
const tickLength = scale._tickSize();
const maxScale = scale._length / tickLength + (offset ? 0 : 1);
const maxChart = scale._maxLength / tickLength;
return Math.floor(Math.min(maxScale, maxChart));
}
function calculateSpacing(majorIndices, ticks, ticksLimit) {
const evenMajorSpacing = getEvenSpacing(majorIndices);
const spacing = ticks.length / ticksLimit;
if (!evenMajorSpacing) return Math.max(spacing, 1);
const factors = _factorize(evenMajorSpacing);
for (let i = 0, ilen = factors.length - 1; i < ilen; i++) {
const factor = factors[i];
if (factor > spacing) return factor;
}
return Math.max(spacing, 1);
}
function getMajorIndices(ticks) {
const result = [];
let i, ilen;
for (i = 0, ilen = ticks.length; i < ilen; i++) if (ticks[i].major) result.push(i);
return result;
}
function skipMajors(ticks, newTicks, majorIndices, spacing) {
let count = 0;
let next = majorIndices[0];
let i;
spacing = Math.ceil(spacing);
for (i = 0; i < ticks.length; i++) if (i === next) {
newTicks.push(ticks[i]);
count++;
next = majorIndices[count * spacing];
}
}
function skip(ticks, newTicks, spacing, majorStart, majorEnd) {
const start = valueOrDefault(majorStart, 0);
const end = Math.min(valueOrDefault(majorEnd, ticks.length), ticks.length);
let count = 0;
let length, i, next;
spacing = Math.ceil(spacing);
if (majorEnd) {
length = majorEnd - majorStart;
spacing = length / Math.floor(length / spacing);
}
next = start;
while (next < 0) {
count++;
next = Math.round(start + count * spacing);
}
for (i = Math.max(start, 0); i < end; i++) if (i === next) {
newTicks.push(ticks[i]);
count++;
next = Math.round(start + count * spacing);
}
}
function getEvenSpacing(arr) {
const len = arr.length;
let i, diff;
if (len < 2) return false;
for (diff = arr[0], i = 1; i < len; ++i) if (arr[i] - arr[i - 1] !== diff) return false;
return diff;
}
var reverseAlign = (align) => align === "left" ? "right" : align === "right" ? "left" : align;
var offsetFromEdge = (scale, edge, offset) => edge === "top" || edge === "left" ? scale[edge] + offset : scale[edge] - offset;
var getTicksLimit = (ticksLength, maxTicksLimit) => Math.min(maxTicksLimit || ticksLength, ticksLength);
function sample(arr, numItems) {
const result = [];
const increment = arr.length / numItems;
const len = arr.length;
let i = 0;
for (; i < len; i += increment) result.push(arr[Math.floor(i)]);
return result;
}
function getPixelForGridLine(scale, index$1, offsetGridLines) {
const length = scale.ticks.length;
const validIndex$1 = Math.min(index$1, length - 1);
const start = scale._startPixel;
const end = scale._endPixel;
const epsilon = 1e-6;
let lineValue = scale.getPixelForTick(validIndex$1);
let offset;
if (offsetGridLines) {
if (length === 1) offset = Math.max(lineValue - start, end - lineValue);
else if (index$1 === 0) offset = (scale.getPixelForTick(1) - lineValue) / 2;
else offset = (lineValue - scale.getPixelForTick(validIndex$1 - 1)) / 2;
lineValue += validIndex$1 < index$1 ? offset : -offset;
if (lineValue < start - epsilon || lineValue > end + epsilon) return;
}
return lineValue;
}
function garbageCollect(caches, length) {
each(caches, (cache) => {
const gc = cache.gc;
const gcLen = gc.length / 2;
let i;
if (gcLen > length) {
for (i = 0; i < gcLen; ++i) delete cache.data[gc[i]];
gc.splice(0, gcLen);
}
});
}
function getTickMarkLength(options) {
return options.drawTicks ? options.tickLength : 0;
}
function getTitleHeight(options, fallback) {
if (!options.display) return 0;
const font = toFont(options.font, fallback);
const padding = toPadding(options.padding);
return (isArray(options.text) ? options.text.length : 1) * font.lineHeight + padding.height;
}
function createScaleContext(parent, scale) {
return createContext(parent, {
scale,
type: "scale"
});
}
function createTickContext(parent, index$1, tick) {
return createContext(parent, {
tick,
index: index$1,
type: "tick"
});
}
function titleAlign(align, position, reverse) {
let ret = _toLeftRightCenter(align);
if (reverse && position !== "right" || !reverse && position === "right") ret = reverseAlign(ret);
return ret;
}
function titleArgs(scale, offset, position, align) {
const { top, left, bottom, right, chart } = scale;
const { chartArea, scales } = chart;
let rotation = 0;
let maxWidth, titleX, titleY;
const height = bottom - top;
const width = right - left;
if (scale.isHorizontal()) {
titleX = _alignStartEnd(align, left, right);
if (isObject(position)) {
const positionAxisID = Object.keys(position)[0];
const value = position[positionAxisID];
titleY = scales[positionAxisID].getPixelForValue(value) + height - offset;
} else if (position === "center") titleY = (chartArea.bottom + chartArea.top) / 2 + height - offset;
else titleY = offsetFromEdge(scale, position, offset);
maxWidth = right - left;
} else {
if (isObject(position)) {
const positionAxisID = Object.keys(position)[0];
const value = position[positionAxisID];
titleX = scales[positionAxisID].getPixelForValue(value) - width + offset;
} else if (position === "center") titleX = (chartArea.left + chartArea.right) / 2 - width + offset;
else titleX = offsetFromEdge(scale, position, offset);
titleY = _alignStartEnd(align, bottom, top);
rotation = position === "left" ? -HALF_PI : HALF_PI;
}
return {
titleX,
titleY,
maxWidth,
rotation
};
}
var Scale = class Scale extends Element {
constructor(cfg) {
super();
this.id = cfg.id;
this.type = cfg.type;
this.options = void 0;
this.ctx = cfg.ctx;
this.chart = cfg.chart;
this.top = void 0;
this.bottom = void 0;
this.left = void 0;
this.right = void 0;
this.width = void 0;
this.height = void 0;
this._margins = {
left: 0,
right: 0,
top: 0,
bottom: 0
};
this.maxWidth = void 0;
this.maxHeight = void 0;
this.paddingTop = void 0;
this.paddingBottom = void 0;
this.paddingLeft = void 0;
this.paddingRight = void 0;
this.axis = void 0;
this.labelRotation = void 0;
this.min = void 0;
this.max = void 0;
this._range = void 0;
this.ticks = [];
this._gridLineItems = null;
this._labelItems = null;
this._labelSizes = null;
this._length = 0;
this._maxLength = 0;
this._longestTextCache = {};
this._startPixel = void 0;
this._endPixel = void 0;
this._reversePixels = false;
this._userMax = void 0;
this._userMin = void 0;
this._suggestedMax = void 0;
this._suggestedMin = void 0;
this._ticksLength = 0;
this._borderValue = 0;
this._cache = {};
this._dataLimitsCached = false;
this.$context = void 0;
}
init(options) {
this.options = options.setContext(this.getContext());
this.axis = options.axis;
this._userMin = this.parse(options.min);
this._userMax = this.parse(options.max);
this._suggestedMin = this.parse(options.suggestedMin);
this._suggestedMax = this.parse(options.suggestedMax);
}
parse(raw, index$1) {
return raw;
}
getUserBounds() {
let { _userMin, _userMax, _suggestedMin, _suggestedMax } = this;
_userMin = finiteOrDefault(_userMin, Number.POSITIVE_INFINITY);
_userMax = finiteOrDefault(_userMax, Number.NEGATIVE_INFINITY);
_suggestedMin = finiteOrDefault(_suggestedMin, Number.POSITIVE_INFINITY);
_suggestedMax = finiteOrDefault(_suggestedMax, Number.NEGATIVE_INFINITY);
return {
min: finiteOrDefault(_userMin, _suggestedMin),
max: finiteOrDefault(_userMax, _suggestedMax),
minDefined: isNumberFinite(_userMin),
maxDefined: isNumberFinite(_userMax)
};
}
getMinMax(canStack) {
let { min, max, minDefined, maxDefined } = this.getUserBounds();
let range;
if (minDefined && maxDefined) return {
min,
max
};
const metas = this.getMatchingVisibleMetas();
for (let i = 0, ilen = metas.length; i < ilen; ++i) {
range = metas[i].controller.getMinMax(this, canStack);
if (!minDefined) min = Math.min(min, range.min);
if (!maxDefined) max = Math.max(max, range.max);
}
min = maxDefined && min > max ? max : min;
max = minDefined && min > max ? min : max;
return {
min: finiteOrDefault(min, finiteOrDefault(max, min)),
max: finiteOrDefault(max, finiteOrDefault(min, max))
};
}
getPadding() {
return {
left: this.paddingLeft || 0,
top: this.paddingTop || 0,
right: this.paddingRight || 0,
bottom: this.paddingBottom || 0
};
}
getTicks() {
return this.ticks;
}
getLabels() {
const data = this.chart.data;
return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels || [];
}
getLabelItems(chartArea = this.chart.chartArea) {
return this._labelItems || (this._labelItems = this._computeLabelItems(chartArea));
}
beforeLayout() {
this._cache = {};
this._dataLimitsCached = false;
}
beforeUpdate() {
callback(this.options.beforeUpdate, [this]);
}
update(maxWidth, maxHeight, margins) {
const { beginAtZero, grace, ticks: tickOpts } = this.options;
const sampleSize = tickOpts.sampleSize;
this.beforeUpdate();
this.maxWidth = maxWidth;
this.maxHeight = maxHeight;
this._margins = margins = Object.assign({
left: 0,
right: 0,
top: 0,
bottom: 0
}, margins);
this.ticks = null;
this._labelSizes = null;
this._gridLineItems = null;
this._labelItems = null;
this.beforeSetDimensions();
this.setDimensions();
this.afterSetDimensions();
this._maxLength = this.isHorizontal() ? this.width + margins.left + margins.right : this.height + margins.top + margins.bottom;
if (!this._dataLimitsCached) {
this.beforeDataLimits();
this.determineDataLimits();
this.afterDataLimits();
this._range = _addGrace(this, grace, beginAtZero);
this._dataLimitsCached = true;
}
this.beforeBuildTicks();
this.ticks = this.buildTicks() || [];
this.afterBuildTicks();
const samplingEnabled = sampleSize < this.ticks.length;
this._convertTicksToLabels(samplingEnabled ? sample(this.ticks, sampleSize) : this.ticks);
this.configure();
this.beforeCalculateLabelRotation();
this.calculateLabelRotation();
this.afterCalculateLabelRotation();
if (tickOpts.display && (tickOpts.autoSkip || tickOpts.source === "auto")) {
this.ticks = autoSkip(this, this.ticks);
this._labelSizes = null;
this.afterAutoSkip();
}
if (samplingEnabled) this._convertTicksToLabels(this.ticks);
this.beforeFit();
this.fit();
this.afterFit();
this.afterUpdate();
}
configure() {
let reversePixels = this.options.reverse;
let startPixel, endPixel;
if (this.isHorizontal()) {
startPixel = this.left;
endPixel = this.right;
} else {
startPixel = this.top;
endPixel = this.bottom;
reversePixels = !reversePixels;
}
this._startPixel = startPixel;
this._endPixel = endPixel;
this._reversePixels = reversePixels;
this._length = endPixel - startPixel;
this._alignToPixels = this.options.alignToPixels;
}
afterUpdate() {
callback(this.options.afterUpdate, [this]);
}
beforeSetDimensions() {
callback(this.options.beforeSetDimensions, [this]);
}
setDimensions() {
if (this.isHorizontal()) {
this.width = this.maxWidth;
this.left = 0;
this.right = this.width;
} else {
this.height = this.maxHeight;
this.top = 0;
this.bottom = this.height;
}
this.paddingLeft = 0;
this.paddingTop = 0;
this.paddingRight = 0;
this.paddingBottom = 0;
}
afterSetDimensions() {
callback(this.options.afterSetDimensions, [this]);
}
_callHooks(name) {
this.chart.notifyPlugins(name, this.getContext());
callback(this.options[name], [this]);
}
beforeDataLimits() {
this._callHooks("beforeDataLimits");
}
determineDataLimits() {}
afterDataLimits() {
this._callHooks("afterDataLimits");
}
beforeBuildTicks() {
this._callHooks("beforeBuildTicks");
}
buildTicks() {
return [];
}
afterBuildTicks() {
this._callHooks("afterBuildTicks");
}
beforeTickToLabelConversion() {
callback(this.options.beforeTickToLabelConversion, [this]);
}
generateTickLabels(ticks) {
const tickOpts = this.options.ticks;
let i, ilen, tick;
for (i = 0, ilen = ticks.length; i < ilen; i++) {
tick = ticks[i];
tick.label = callback(tickOpts.callback, [
tick.value,
i,
ticks
], this);
}
}
afterTickToLabelConversion() {
callback(this.options.afterTickToLabelConversion, [this]);
}
beforeCalculateLabelRotation() {
callback(this.options.beforeCalculateLabelRotation, [this]);
}
calculateLabelRotation() {
const options = this.options;
const tickOpts = options.ticks;
const numTicks = getTicksLimit(this.ticks.length, options.ticks.maxTicksLimit);
const minRotation = tickOpts.minRotation || 0;
const maxRotation = tickOpts.maxRotation;
let labelRotation = minRotation;
let tickWidth, maxHeight, maxLabelDiagonal;
if (!this._isVisible() || !tickOpts.display || minRotation >= maxRotation || numTicks <= 1 || !this.isHorizontal()) {
this.labelRotation = minRotation;
return;
}
const labelSizes = this._getLabelSizes();
const maxLabelWidth = labelSizes.widest.width;
const maxLabelHeight = labelSizes.highest.height;
const maxWidth = _limitValue(this.chart.width - maxLabelWidth, 0, this.maxWidth);
tickWidth = options.offset ? this.maxWidth / numTicks : maxWidth / (numTicks - 1);
if (maxLabelWidth + 6 > tickWidth) {
tickWidth = maxWidth / (numTicks - (options.offset ? .5 : 1));
maxHeight = this.maxHeight - getTickMarkLength(options.grid) - tickOpts.padding - getTitleHeight(options.title, this.chart.options.font);
maxLabelDiagonal = Math.sqrt(maxLabelWidth * maxLabelWidth + maxLabelHeight * maxLabelHeight);
labelRotation = toDegrees(Math.min(Math.asin(_limitValue((labelSizes.highest.height + 6) / tickWidth, -1, 1)), Math.asin(_limitValue(maxHeight / maxLabelDiagonal, -1, 1)) - Math.asin(_limitValue(maxLabelHeight / maxLabelDiagonal, -1, 1))));
labelRotation = Math.max(minRotation, Math.min(maxRotation, labelRotation));
}
this.labelRotation = labelRotation;
}
afterCalculateLabelRotation() {
callback(this.options.afterCalculateLabelRotation, [this]);
}
afterAutoSkip() {}
beforeFit() {
callback(this.options.beforeFit, [this]);
}
fit() {
const minSize = {
width: 0,
height: 0
};
const { chart, options: { ticks: tickOpts, title: titleOpts, grid: gridOpts } } = this;
const display = this._isVisible();
const isHorizontal = this.isHorizontal();
if (display) {
const titleHeight = getTitleHeight(titleOpts, chart.options.font);
if (isHorizontal) {
minSize.width = this.maxWidth;
minSize.height = getTickMarkLength(gridOpts) + titleHeight;
} else {
minSize.height = this.maxHeight;
minSize.width = getTickMarkLength(gridOpts) + titleHeight;
}
if (tickOpts.display && this.ticks.length) {
const { first, last, widest, highest } = this._getLabelSizes();
const tickPadding = tickOpts.padding * 2;
const angleRadians = toRadians(this.labelRotation);
const cos = Math.cos(angleRadians);
const sin = Math.sin(angleRadians);
if (isHorizontal) {
const labelHeight = tickOpts.mirror ? 0 : sin * widest.width + cos * highest.height;
minSize.height = Math.min(this.maxHeight, minSize.height + labelHeight + tickPadding);
} else {
const labelWidth = tickOpts.mirror ? 0 : cos * widest.width + sin * highest.height;
minSize.width = Math.min(this.maxWidth, minSize.width + labelWidth + tickPadding);
}
this._calculatePadding(first, last, sin, cos);
}
}
this._handleMargins();
if (isHorizontal) {
this.width = this._length = chart.width - this._margins.left - this._margins.right;
this.height = minSize.height;
} else {
this.width = minSize.width;
this.height = this._length = chart.height - this._margins.top - this._margins.bottom;
}
}
_calculatePadding(first, last, sin, cos) {
const { ticks: { align, padding }, position } = this.options;
const isRotated = this.labelRotation !== 0;
const labelsBelowTicks = position !== "top" && this.axis === "x";
if (this.isHorizontal()) {
const offsetLeft = this.getPixelForTick(0) - this.left;
const offsetRight = this.right - this.getPixelForTick(this.ticks.length - 1);
let paddingLeft = 0;
let paddingRight = 0;
if (isRotated) if (labelsBelowTicks) {
paddingLeft = cos * first.width;
paddingRight = sin * last.height;
} else {
paddingLeft = sin * first.height;
paddingRight = cos * last.width;
}
else if (align === "start") paddingRight = last.width;
else if (align === "end") paddingLeft = first.width;
else if (align !== "inner") {
paddingLeft = first.width / 2;
paddingRight = last.width / 2;
}
this.paddingLeft = Math.max((paddingLeft - offsetLeft + padding) * this.width / (this.width - offsetLeft), 0);
this.paddingRight = Math.max((paddingRight - offsetRight + padding) * this.width / (this.width - offsetRight), 0);
} else {
let paddingTop = last.height / 2;
let paddingBottom = first.height / 2;
if (align === "start") {
paddingTop = 0;
paddingBottom = first.height;
} else if (align === "end") {
paddingTop = last.height;
paddingBottom = 0;
}
this.paddingTop = paddingTop + padding;
this.paddingBottom = paddingBottom + padding;
}
}
_handleMargins() {
if (this._margins) {
this._margins.left = Math.max(this.paddingLeft, this._margins.left);
this._margins.top = Math.max(this.paddingTop, this._margins.top);
this._margins.right = Math.max(this.paddingRight, this._margins.right);
this._margins.bottom = Math.max(this.paddingBottom, this._margins.bottom);
}
}
afterFit() {
callback(this.options.afterFit, [this]);
}
isHorizontal() {
const { axis, position } = this.options;
return position === "top" || position === "bottom" || axis === "x";
}
isFullSize() {
return this.options.fullSize;
}
_convertTicksToLabels(ticks) {
this.beforeTickToLabelConversion();
this.generateTickLabels(ticks);
let i, ilen;
for (i = 0, ilen = ticks.length; i < ilen; i++) if (isNullOrUndef(ticks[i].label)) {
ticks.splice(i, 1);
ilen--;
i--;
}
this.afterTickToLabelConversion();
}
_getLabelSizes() {
let labelSizes = this._labelSizes;
if (!labelSizes) {
const sampleSize = this.options.ticks.sampleSize;
let ticks = this.ticks;
if (sampleSize < ticks.length) ticks = sample(ticks, sampleSize);
this._labelSizes = labelSizes = this._computeLabelSizes(ticks, ticks.length, this.options.ticks.maxTicksLimit);
}
return labelSizes;
}
_computeLabelSizes(ticks, length, maxTicksLimit) {
const { ctx, _longestTextCache: caches } = this;
const widths = [];
const heights = [];
const increment = Math.floor(length / getTicksLimit(length, maxTicksLimit));
let widestLabelSize = 0;
let highestLabelSize = 0;
let i, j, jlen, label, tickFont, fontString, cache, lineHeight, width, height, nestedLabel;
for (i = 0; i < length; i += increment) {
label = ticks[i].label;
tickFont = this._resolveTickFontOptions(i);
ctx.font = fontString = tickFont.string;
cache = caches[fontString] = caches[fontString] || {
data: {},
gc: []
};
lineHeight = tickFont.lineHeight;
width = height = 0;
if (!isNullOrUndef(label) && !isArray(label)) {
width = _measureText(ctx, cache.data, cache.gc, width, label);
height = lineHeight;
} else if (isArray(label)) for (j = 0, jlen = label.length; j < jlen; ++j) {
nestedLabel = label[j];
if (!isNullOrUndef(nestedLabel) && !isArray(nestedLabel)) {
width = _measureText(ctx, cache.data, cache.gc, width, nestedLabel);
height += lineHeight;
}
}
widths.push(width);
heights.push(height);
widestLabelSize = Math.max(width, widestLabelSize);
highestLabelSize = Math.max(height, highestLabelSize);
}
garbageCollect(caches, length);
const widest = widths.indexOf(widestLabelSize);
const highest = heights.indexOf(highestLabelSize);
const valueAt = (idx) => ({
width: widths[idx] || 0,
height: heights[idx] || 0
});
return {
first: valueAt(0),
last: valueAt(length - 1),
widest: valueAt(widest),
highest: valueAt(highest),
widths,
heights
};
}
getLabelForValue(value) {
return value;
}
getPixelForValue(value, index$1) {
return NaN;
}
getValueForPixel(pixel) {}
getPixelForTick(index$1) {
const ticks = this.ticks;
if (index$1 < 0 || index$1 > ticks.length - 1) return null;
return this.getPixelForValue(ticks[index$1].value);
}
getPixelForDecimal(decimal) {
if (this._reversePixels) decimal = 1 - decimal;
const pixel = this._startPixel + decimal * this._length;
return _int16Range(this._alignToPixels ? _alignPixel(this.chart, pixel, 0) : pixel);
}
getDecimalForPixel(pixel) {
const decimal = (pixel - this._startPixel) / this._length;
return this._reversePixels ? 1 - decimal : decimal;
}
getBasePixel() {
return this.getPixelForValue(this.getBaseValue());
}
getBaseValue() {
const { min, max } = this;
return min < 0 && max < 0 ? max : min > 0 && max > 0 ? min : 0;
}
getContext(index$1) {
const ticks = this.ticks || [];
if (index$1 >= 0 && index$1 < ticks.length) {
const tick = ticks[index$1];
return tick.$context || (tick.$context = createTickContext(this.getContext(), index$1, tick));
}
return this.$context || (this.$context = createScaleContext(this.chart.getContext(), this));
}
_tickSize() {
const optionTicks = this.options.ticks;
const rot = toRadians(this.labelRotation);
const cos = Math.abs(Math.cos(rot));
const sin = Math.abs(Math.sin(rot));
const labelSizes = this._getLabelSizes();
const padding = optionTicks.autoSkipPadding || 0;
const w = labelSizes ? labelSizes.widest.width + padding : 0;
const h = labelSizes ? labelSizes.highest.height + padding : 0;
return this.isHorizontal() ? h * cos > w * sin ? w / cos : h / sin : h * sin < w * cos ? h / cos : w / sin;
}
_isVisible() {
const display = this.options.display;
if (display !== "auto") return !!display;
return this.getMatchingVisibleMetas().length > 0;
}
_computeGridLineItems(chartArea) {
const axis = this.axis;
const chart = this.chart;
const options = this.options;
const { grid, position, border } = options;
const offset = grid.offset;
const isHorizontal = this.isHorizontal();
const ticksLength = this.ticks.length + (offset ? 1 : 0);
const tl = getTickMarkLength(grid);
const items = [];
const borderOpts = border.setContext(this.getContext());
const axisWidth = borderOpts.display ? borderOpts.width : 0;
const axisHalfWidth = axisWidth / 2;
const alignBorderValue = function(pixel) {
return _alignPixel(chart, pixel, axisWidth);
};
let borderValue, i, lineValue, alignedLineValue;
let tx1, ty1, tx2, ty2, x1, y1, x2, y2;
if (position === "top") {
borderValue = alignBorderValue(this.bottom);
ty1 = this.bottom - tl;
ty2 = borderValue - axisHalfWidth;
y1 = alignBorderValue(chartArea.top) + axisHalfWidth;
y2 = chartArea.bottom;
} else if (position === "bottom") {
borderValue = alignBorderValue(this.top);
y1 = chartArea.top;
y2 = alignBorderValue(chartArea.bottom) - axisHalfWidth;
ty1 = borderValue + axisHalfWidth;
ty2 = this.top + tl;
} else if (position === "left") {
borderValue = alignBorderValue(this.right);
tx1 = this.right - tl;
tx2 = borderValue - axisHalfWidth;
x1 = alignBorderValue(chartArea.left) + axisHalfWidth;
x2 = chartArea.right;
} else if (position === "right") {
borderValue = alignBorderValue(this.left);
x1 = chartArea.left;
x2 = alignBorderValue(chartArea.right) - axisHalfWidth;
tx1 = borderValue + axisHalfWidth;
tx2 = this.left + tl;
} else if (axis === "x") {
if (position === "center") borderValue = alignBorderValue((chartArea.top + chartArea.bottom) / 2 + .5);
else if (isObject(position)) {
const positionAxisID = Object.keys(position)[0];
const value = position[positionAxisID];
borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value));
}
y1 = chartArea.top;
y2 = chartArea.bottom;
ty1 = borderValue + axisHalfWidth;
ty2 = ty1 + tl;
} else if (axis === "y") {
if (position === "center") borderValue = alignBorderValue((chartArea.left + chartArea.right) / 2);
else if (isObject(position)) {
const positionAxisID = Object.keys(position)[0];
const value = position[positionAxisID];
borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value));
}
tx1 = borderValue - axisHalfWidth;
tx2 = tx1 - tl;
x1 = chartArea.left;
x2 = chartArea.right;
}
const limit = valueOrDefault(options.ticks.maxTicksLimit, ticksLength);
const step = Math.max(1, Math.ceil(ticksLength / limit));
for (i = 0; i < ticksLength; i += step) {
const context = this.getContext(i);
const optsAtIndex = grid.setContext(context);
const optsAtIndexBorder = border.setContext(context);
const lineWidth = optsAtIndex.lineWidth;
const lineColor = optsAtIndex.color;
const borderDash = optsAtIndexBorder.dash || [];
const borderDashOffset = optsAtIndexBorder.dashOffset;
const tickWidth = optsAtIndex.tickWidth;
const tickColor = optsAtIndex.tickColor;
const tickBorderDash = optsAtIndex.tickBorderDash || [];
const tickBorderDashOffset = optsAtIndex.tickBorderDashOffset;
lineValue = getPixelForGridLine(this, i, offset);
if (lineValue === void 0) continue;
alignedLineValue = _alignPixel(chart, lineValue, lineWidth);
if (isHorizontal) tx1 = tx2 = x1 = x2 = alignedLineValue;
else ty1 = ty2 = y1 = y2 = alignedLineValue;
items.push({
tx1,
ty1,
tx2,
ty2,
x1,
y1,
x2,
y2,
width: lineWidth,
color: lineColor,
borderDash,
borderDashOffset,
tickWidth,
tickColor,
tickBorderDash,
tickBorderDashOffset
});
}
this._ticksLength = ticksLength;
this._borderValue = borderValue;
return items;
}
_computeLabelItems(chartArea) {
const axis = this.axis;
const options = this.options;
const { position, ticks: optionTicks } = options;
const isHorizontal = this.isHorizontal();
const ticks = this.ticks;
const { align, crossAlign, padding, mirror } = optionTicks;
const tl = getTickMarkLength(options.grid);
const tickAndPadding = tl + padding;
const hTickAndPadding = mirror ? -padding : tickAndPadding;
const rotation = -toRadians(this.labelRotation);
const items = [];
let i, ilen, tick, label, x, y, textAlign, pixel, font, lineHeight, lineCount, textOffset;
let textBaseline = "middle";
if (position === "top") {
y = this.bottom - hTickAndPadding;
textAlign = this._getXAxisLabelAlignment();
} else if (position === "bottom") {
y = this.top + hTickAndPadding;
textAlign = this._getXAxisLabelAlignment();
} else if (position === "left") {
const ret = this._getYAxisLabelAlignment(tl);
textAlign = ret.textAlign;
x = ret.x;
} else if (position === "right") {
const ret = this._getYAxisLabelAlignment(tl);
textAlign = ret.textAlign;
x = ret.x;
} else if (axis === "x") {
if (position === "center") y = (chartArea.top + chartArea.bottom) / 2 + tickAndPadding;
else if (isObject(position)) {
const positionAxisID = Object.keys(position)[0];
const value = position[positionAxisID];
y = this.chart.scales[positionAxisID].getPixelForValue(value) + tickAndPadding;
}
textAlign = this._getXAxisLabelAlignment();
} else if (axis === "y") {
if (position === "center") x = (chartArea.left + chartArea.right) / 2 - tickAndPadding;
else if (isObject(position)) {
const positionAxisID = Object.keys(position)[0];
const value = position[positionAxisID];
x = this.chart.scales[positionAxisID].getPixelForValue(value);
}
textAlign = this._getYAxisLabelAlignment(tl).textAlign;
}
if (axis === "y") {
if (align === "start") textBaseline = "top";
else if (align === "end") textBaseline = "bottom";
}
const labelSizes = this._getLabelSizes();
for (i = 0, ilen = ticks.length; i < ilen; ++i) {
tick = ticks[i];
label = tick.label;
const optsAtIndex = optionTicks.setContext(this.getContext(i));
pixel = this.getPixelForTick(i) + optionTicks.labelOffset;
font = this._resolveTickFontOptions(i);
lineHeight = font.lineHeight;
lineCount = isArray(label) ? label.length : 1;
const halfCount = lineCount / 2;
const color$1 = optsAtIndex.color;
const strokeColor = optsAtIndex.textStrokeColor;
const strokeWidth = optsAtIndex.textStrokeWidth;
let tickTextAlign = textAlign;
if (isHorizontal) {
x = pixel;
if (textAlign === "inner") if (i === ilen - 1) tickTextAlign = !this.options.reverse ? "right" : "left";
else if (i === 0) tickTextAlign = !this.options.reverse ? "left" : "right";
else tickTextAlign = "center";
if (position === "top") if (crossAlign === "near" || rotation !== 0) textOffset = -lineCount * lineHeight + lineHeight / 2;
else if (crossAlign === "center") textOffset = -labelSizes.highest.height / 2 - halfCount * lineHeight + lineHeight;
else textOffset = -labelSizes.highest.height + lineHeight / 2;
else if (crossAlign === "near" || rotation !== 0) textOffset = lineHeight / 2;
else if (crossAlign === "center") textOffset = labelSizes.highest.height / 2 - halfCount * lineHeight;
else textOffset = labelSizes.highest.height - lineCount * lineHeight;
if (mirror) textOffset *= -1;
if (rotation !== 0 && !optsAtIndex.showLabelBackdrop) x += lineHeight / 2 * Math.sin(rotation);
} else {
y = pixel;
textOffset = (1 - lineCount) * lineHeight / 2;
}
let backdrop;
if (optsAtIndex.showLabelBackdrop) {
const labelPadding = toPadding(optsAtIndex.backdropPadding);
const height = labelSizes.heights[i];
const width = labelSizes.widths[i];
let top = textOffset - labelPadding.top;
let left = 0 - labelPadding.left;
switch (textBaseline) {
case "middle":
top -= height / 2;
break;
case "bottom":
top -= height;
break;
}
switch (textAlign) {
case "center":
left -= width / 2;
break;
case "right":
left -= width;
break;
}
backdrop = {
left,
top,
width: width + labelPadding.width,
height: height + labelPadding.height,
color: optsAtIndex.backdropColor
};
}
items.push({
label,
font,
textOffset,
options: {
rotation,
color: color$1,
strokeColor,
strokeWidth,
textAlign: tickTextAlign,
textBaseline,
translation: [x, y],
backdrop
}
});
}
return items;
}
_getXAxisLabelAlignment() {
const { position, ticks } = this.options;
if (-toRadians(this.labelRotation)) return position === "top" ? "left" : "right";
let align = "center";
if (ticks.align === "start") align = "left";
else if (ticks.align === "end") align = "right";
else if (ticks.align === "inner") align = "inner";
return align;
}
_getYAxisLabelAlignment(tl) {
const { position, ticks: { crossAlign, mirror, padding } } = this.options;
const labelSizes = this._getLabelSizes();
const tickAndPadding = tl + padding;
const widest = labelSizes.widest.width;
let textAlign;
let x;
if (position === "left") if (mirror) {
x = this.right + padding;
if (crossAlign === "near") textAlign = "left";
else if (crossAlign === "center") {
textAlign = "center";
x += widest / 2;
} else {
textAlign = "right";
x += widest;
}
} else {
x = this.right - tickAndPadding;
if (crossAlign === "near") textAlign = "right";
else if (crossAlign === "center") {
textAlign = "center";
x -= widest / 2;
} else {
textAlign = "left";
x = this.left;
}
}
else if (position === "right") if (mirror) {
x = this.left + padding;
if (crossAlign === "near") textAlign = "right";
else if (crossAlign === "center") {
textAlign = "center";
x -= widest / 2;
} else {
textAlign = "left";
x -= widest;
}
} else {
x = this.left + tickAndPadding;
if (crossAlign === "near") textAlign = "left";
else if (crossAlign === "center") {
textAlign = "center";
x += widest / 2;
} else {
textAlign = "right";
x = this.right;
}
}
else textAlign = "right";
return {
textAlign,
x
};
}
_computeLabelArea() {
if (this.options.ticks.mirror) return;
const chart = this.chart;
const position = this.options.position;
if (position === "left" || position === "right") return {
top: 0,
left: this.left,
bottom: chart.height,
right: this.right
};
if (position === "top" || position === "bottom") return {
top: this.top,
left: 0,
bottom: this.bottom,
right: chart.width
};
}
drawBackground() {
const { ctx, options: { backgroundColor }, left, top, width, height } = this;
if (backgroundColor) {
ctx.save();
ctx.fillStyle = backgroundColor;
ctx.fillRect(left, top, width, height);
ctx.restore();
}
}
getLineWidthForValue(value) {
const grid = this.options.grid;
if (!this._isVisible() || !grid.display) return 0;
const index$1 = this.ticks.findIndex((t) => t.value === value);
if (index$1 >= 0) return grid.setContext(this.getContext(index$1)).lineWidth;
return 0;
}
drawGrid(chartArea) {
const grid = this.options.grid;
const ctx = this.ctx;
const items = this._gridLineItems || (this._gridLineItems = this._computeGridLineItems(chartArea));
let i, ilen;
const drawLine = (p1, p2, style) => {
if (!style.width || !style.color) return;
ctx.save();
ctx.lineWidth = style.width;
ctx.strokeStyle = style.color;
ctx.setLineDash(style.borderDash || []);
ctx.lineDashOffset = style.borderDashOffset;
ctx.beginPath();
ctx.moveTo(p1.x, p1.y);
ctx.lineTo(p2.x, p2.y);
ctx.stroke();
ctx.restore();
};
if (grid.display) for (i = 0, ilen = items.length; i < ilen; ++i) {
const item = items[i];
if (grid.drawOnChartArea) drawLine({
x: item.x1,
y: item.y1
}, {
x: item.x2,
y: item.y2
}, item);
if (grid.drawTicks) drawLine({
x: item.tx1,
y: item.ty1
}, {
x: item.tx2,
y: item.ty2
}, {
color: item.tickColor,
width: item.tickWidth,
borderDash: item.tickBorderDash,
borderDashOffset: item.tickBorderDashOffset
});
}
}
drawBorder() {
const { chart, ctx, options: { border, grid } } = this;
const borderOpts = border.setContext(this.getContext());
const axisWidth = border.display ? borderOpts.width : 0;
if (!axisWidth) return;
const lastLineWidth = grid.setContext(this.getContext(0)).lineWidth;
const borderValue = this._borderValue;
let x1, x2, y1, y2;
if (this.isHorizontal()) {
x1 = _alignPixel(chart, this.left, axisWidth) - axisWidth / 2;
x2 = _alignPixel(chart, this.right, lastLineWidth) + lastLineWidth / 2;
y1 = y2 = borderValue;
} else {
y1 = _alignPixel(chart, this.top, axisWidth) - axisWidth / 2;
y2 = _alignPixel(chart, this.bottom, lastLineWidth) + lastLineWidth / 2;
x1 = x2 = borderValue;
}
ctx.save();
ctx.lineWidth = borderOpts.width;
ctx.strokeStyle = borderOpts.color;
ctx.beginPath();
ctx.moveTo(x1, y1);
ctx.lineTo(x2, y2);
ctx.stroke();
ctx.restore();
}
drawLabels(chartArea) {
if (!this.options.ticks.display) return;
const ctx = this.ctx;
const area = this._computeLabelArea();
if (area) clipArea(ctx, area);
const items = this.getLabelItems(chartArea);
for (const item of items) {
const renderTextOptions = item.options;
const tickFont = item.font;
const label = item.label;
const y = item.textOffset;
renderText(ctx, label, 0, y, tickFont, renderTextOptions);
}
if (area) unclipArea(ctx);
}
drawTitle() {
const { ctx, options: { position, title, reverse } } = this;
if (!title.display) return;
const font = toFont(title.font);
const padding = toPadding(title.padding);
const align = title.align;
let offset = font.lineHeight / 2;
if (position === "bottom" || position === "center" || isObject(position)) {
offset += padding.bottom;
if (isArray(title.text)) offset += font.lineHeight * (title.text.length - 1);
} else offset += padding.top;
const { titleX, titleY, maxWidth, rotation } = titleArgs(this, offset, position, align);
renderText(ctx, title.text, 0, 0, font, {
color: title.color,
maxWidth,
rotation,
textAlign: titleAlign(align, position, reverse),
textBaseline: "middle",
translation: [titleX, titleY]
});
}
draw(chartArea) {
if (!this._isVisible()) return;
this.drawBackground();
this.drawGrid(chartArea);
this.drawBorder();
this.drawTitle();
this.drawLabels(chartArea);
}
_layers() {
const opts = this.options;
const tz = opts.ticks && opts.ticks.z || 0;
const gz = valueOrDefault(opts.grid && opts.grid.z, -1);
const bz = valueOrDefault(opts.border && opts.border.z, 0);
if (!this._isVisible() || this.draw !== Scale.prototype.draw) return [{
z: tz,
draw: (chartArea) => {
this.draw(chartArea);
}
}];
return [
{
z: gz,
draw: (chartArea) => {
this.drawBackground();
this.drawGrid(chartArea);
this.drawTitle();
}
},
{
z: bz,
draw: () => {
this.drawBorder();
}
},
{
z: tz,
draw: (chartArea) => {
this.drawLabels(chartArea);
}
}
];
}
getMatchingVisibleMetas(type) {
const metas = this.chart.getSortedVisibleDatasetMetas();
const axisID = this.axis + "AxisID";
const result = [];
let i, ilen;
for (i = 0, ilen = metas.length; i < ilen; ++i) {
const meta = metas[i];
if (meta[axisID] === this.id && (!type || meta.type === type)) result.push(meta);
}
return result;
}
_resolveTickFontOptions(index$1) {
return toFont(this.options.ticks.setContext(this.getContext(index$1)).font);
}
_maxDigits() {
const fontSize = this._resolveTickFontOptions(0).lineHeight;
return (this.isHorizontal() ? this.width : this.height) / fontSize;
}
};
var TypedRegistry = class {
constructor(type, scope, override) {
this.type = type;
this.scope = scope;
this.override = override;
this.items = Object.create(null);
}
isForType(type) {
return Object.prototype.isPrototypeOf.call(this.type.prototype, type.prototype);
}
register(item) {
const proto = Object.getPrototypeOf(item);
let parentScope;
if (isIChartComponent(proto)) parentScope = this.register(proto);
const items = this.items;
const id = item.id;
const scope = this.scope + "." + id;
if (!id) throw new Error("class does not have id: " + item);
if (id in items) return scope;
items[id] = item;
registerDefaults(item, scope, parentScope);
if (this.override) defaults.override(item.id, item.overrides);
return scope;
}
get(id) {
return this.items[id];
}
unregister(item) {
const items = this.items;
const id = item.id;
const scope = this.scope;
if (id in items) delete items[id];
if (scope && id in defaults[scope]) {
delete defaults[scope][id];
if (this.override) delete overrides[id];
}
}
};
function registerDefaults(item, scope, parentScope) {
const itemDefaults = merge(Object.create(null), [
parentScope ? defaults.get(parentScope) : {},
defaults.get(scope),
item.defaults
]);
defaults.set(scope, itemDefaults);
if (item.defaultRoutes) routeDefaults(scope, item.defaultRoutes);
if (item.descriptors) defaults.describe(scope, item.descriptors);
}
function routeDefaults(scope, routes) {
Object.keys(routes).forEach((property) => {
const propertyParts = property.split(".");
const sourceName = propertyParts.pop();
const sourceScope = [scope].concat(propertyParts).join(".");
const parts = routes[property].split(".");
const targetName = parts.pop();
const targetScope = parts.join(".");
defaults.route(sourceScope, sourceName, targetScope, targetName);
});
}
function isIChartComponent(proto) {
return "id" in proto && "defaults" in proto;
}
var Registry = class {
constructor() {
this.controllers = new TypedRegistry(DatasetController, "datasets", true);
this.elements = new TypedRegistry(Element, "elements");
this.plugins = new TypedRegistry(Object, "plugins");
this.scales = new TypedRegistry(Scale, "scales");
this._typedRegistries = [
this.controllers,
this.scales,
this.elements
];
}
add(...args) {
this._each("register", args);
}
remove(...args) {
this._each("unregister", args);
}
addControllers(...args) {
this._each("register", args, this.controllers);
}
addElements(...args) {
this._each("register", args, this.elements);
}
addPlugins(...args) {
this._each("register", args, this.plugins);
}
addScales(...args) {
this._each("register", args, this.scales);
}
getController(id) {
return this._get(id, this.controllers, "controller");
}
getElement(id) {
return this._get(id, this.elements, "element");
}
getPlugin(id) {
return this._get(id, this.plugins, "plugin");
}
getScale(id) {
return this._get(id, this.scales, "scale");
}
removeControllers(...args) {
this._each("unregister", args, this.controllers);
}
removeElements(...args) {
this._each("unregister", args, this.elements);
}
removePlugins(...args) {
this._each("unregister", args, this.plugins);
}
removeScales(...args) {
this._each("unregister", args, this.scales);
}
_each(method, args, typedRegistry) {
[...args].forEach((arg) => {
const reg = typedRegistry || this._getRegistryForType(arg);
if (typedRegistry || reg.isForType(arg) || reg === this.plugins && arg.id) this._exec(method, reg, arg);
else each(arg, (item) => {
const itemReg = typedRegistry || this._getRegistryForType(item);
this._exec(method, itemReg, item);
});
});
}
_exec(method, registry$1, component) {
const camelMethod = _capitalize(method);
callback(component["before" + camelMethod], [], component);
registry$1[method](component);
callback(component["after" + camelMethod], [], component);
}
_getRegistryForType(type) {
for (let i = 0; i < this._typedRegistries.length; i++) {
const reg = this._typedRegistries[i];
if (reg.isForType(type)) return reg;
}
return this.plugins;
}
_get(id, typedRegistry, type) {
const item = typedRegistry.get(id);
if (item === void 0) throw new Error("\"" + id + "\" is not a registered " + type + ".");
return item;
}
};
var registry = /* @__PURE__ */ new Registry();
var PluginService = class {
constructor() {
this._init = [];
}
notify(chart, hook, args, filter) {
if (hook === "beforeInit") {
this._init = this._createDescriptors(chart, true);
this._notify(this._init, chart, "install");
}
const descriptors$1 = filter ? this._descriptors(chart).filter(filter) : this._descriptors(chart);
const result = this._notify(descriptors$1, chart, hook, args);
if (hook === "afterDestroy") {
this._notify(descriptors$1, chart, "stop");
this._notify(this._init, chart, "uninstall");
}
return result;
}
_notify(descriptors$1, chart, hook, args) {
args = args || {};
for (const descriptor of descriptors$1) {
const plugin = descriptor.plugin;
const method = plugin[hook];
if (callback(method, [
chart,
args,
descriptor.options
], plugin) === false && args.cancelable) return false;
}
return true;
}
invalidate() {
if (!isNullOrUndef(this._cache)) {
this._oldCache = this._cache;
this._cache = void 0;
}
}
_descriptors(chart) {
if (this._cache) return this._cache;
const descriptors$1 = this._cache = this._createDescriptors(chart);
this._notifyStateChanges(chart);
return descriptors$1;
}
_createDescriptors(chart, all) {
const config = chart && chart.config;
const options = valueOrDefault(config.options && config.options.plugins, {});
const plugins = allPlugins(config);
return options === false && !all ? [] : createDescriptors(chart, plugins, options, all);
}
_notifyStateChanges(chart) {
const previousDescriptors = this._oldCache || [];
const descriptors$1 = this._cache;
const diff = (a, b) => a.filter((x) => !b.some((y) => x.plugin.id === y.plugin.id));
this._notify(diff(previousDescriptors, descriptors$1), chart, "stop");
this._notify(diff(descriptors$1, previousDescriptors), chart, "start");
}
};
function allPlugins(config) {
const localIds = {};
const plugins = [];
const keys = Object.keys(registry.plugins.items);
for (let i = 0; i < keys.length; i++) plugins.push(registry.getPlugin(keys[i]));
const local = config.plugins || [];
for (let i = 0; i < local.length; i++) {
const plugin = local[i];
if (plugins.indexOf(plugin) === -1) {
plugins.push(plugin);
localIds[plugin.id] = true;
}
}
return {
plugins,
localIds
};
}
function getOpts(options, all) {
if (!all && options === false) return null;
if (options === true) return {};
return options;
}
function createDescriptors(chart, { plugins, localIds }, options, all) {
const result = [];
const context = chart.getContext();
for (const plugin of plugins) {
const id = plugin.id;
const opts = getOpts(options[id], all);
if (opts === null) continue;
result.push({
plugin,
options: pluginOpts(chart.config, {
plugin,
local: localIds[id]
}, opts, context)
});
}
return result;
}
function pluginOpts(config, { plugin, local }, opts, context) {
const keys = config.pluginScopeKeys(plugin);
const scopes = config.getOptionScopes(opts, keys);
if (local && plugin.defaults) scopes.push(plugin.defaults);
return config.createResolver(scopes, context, [""], {
scriptable: false,
indexable: false,
allKeys: true
});
}
function getIndexAxis(type, options) {
const datasetDefaults = defaults.datasets[type] || {};
return ((options.datasets || {})[type] || {}).indexAxis || options.indexAxis || datasetDefaults.indexAxis || "x";
}
function getAxisFromDefaultScaleID(id, indexAxis) {
let axis = id;
if (id === "_index_") axis = indexAxis;
else if (id === "_value_") axis = indexAxis === "x" ? "y" : "x";
return axis;
}
function getDefaultScaleIDFromAxis(axis, indexAxis) {
return axis === indexAxis ? "_index_" : "_value_";
}
function idMatchesAxis(id) {
if (id === "x" || id === "y" || id === "r") return id;
}
function axisFromPosition(position) {
if (position === "top" || position === "bottom") return "x";
if (position === "left" || position === "right") return "y";
}
function determineAxis(id, ...scaleOptions) {
if (idMatchesAxis(id)) return id;
for (const opts of scaleOptions) {
const axis = opts.axis || axisFromPosition(opts.position) || id.length > 1 && idMatchesAxis(id[0].toLowerCase());
if (axis) return axis;
}
throw new Error(`Cannot determine type of '${id}' axis. Please provide 'axis' or 'position' option.`);
}
function getAxisFromDataset(id, axis, dataset) {
if (dataset[axis + "AxisID"] === id) return { axis };
}
function retrieveAxisFromDatasets(id, config) {
if (config.data && config.data.datasets) {
const boundDs = config.data.datasets.filter((d) => d.xAxisID === id || d.yAxisID === id);
if (boundDs.length) return getAxisFromDataset(id, "x", boundDs[0]) || getAxisFromDataset(id, "y", boundDs[0]);
}
return {};
}
function mergeScaleConfig(config, options) {
const chartDefaults = overrides[config.type] || { scales: {} };
const configScales = options.scales || {};
const chartIndexAxis = getIndexAxis(config.type, options);
const scales = Object.create(null);
Object.keys(configScales).forEach((id) => {
const scaleConf = configScales[id];
if (!isObject(scaleConf)) return console.error(`Invalid scale configuration for scale: ${id}`);
if (scaleConf._proxy) return console.warn(`Ignoring resolver passed as options for scale: ${id}`);
const axis = determineAxis(id, scaleConf, retrieveAxisFromDatasets(id, config), defaults.scales[scaleConf.type]);
const defaultId = getDefaultScaleIDFromAxis(axis, chartIndexAxis);
const defaultScaleOptions = chartDefaults.scales || {};
scales[id] = mergeIf(Object.create(null), [
{ axis },
scaleConf,
defaultScaleOptions[axis],
defaultScaleOptions[defaultId]
]);
});
config.data.datasets.forEach((dataset) => {
const type = dataset.type || config.type;
const indexAxis = dataset.indexAxis || getIndexAxis(type, options);
const defaultScaleOptions = (overrides[type] || {}).scales || {};
Object.keys(defaultScaleOptions).forEach((defaultID) => {
const axis = getAxisFromDefaultScaleID(defaultID, indexAxis);
const id = dataset[axis + "AxisID"] || axis;
scales[id] = scales[id] || Object.create(null);
mergeIf(scales[id], [
{ axis },
configScales[id],
defaultScaleOptions[defaultID]
]);
});
});
Object.keys(scales).forEach((key) => {
const scale = scales[key];
mergeIf(scale, [defaults.scales[scale.type], defaults.scale]);
});
return scales;
}
function initOptions(config) {
const options = config.options || (config.options = {});
options.plugins = valueOrDefault(options.plugins, {});
options.scales = mergeScaleConfig(config, options);
}
function initData(data) {
data = data || {};
data.datasets = data.datasets || [];
data.labels = data.labels || [];
return data;
}
function initConfig(config) {
config = config || {};
config.data = initData(config.data);
initOptions(config);
return config;
}
var keyCache = /* @__PURE__ */ new Map();
var keysCached = /* @__PURE__ */ new Set();
function cachedKeys(cacheKey, generate) {
let keys = keyCache.get(cacheKey);
if (!keys) {
keys = generate();
keyCache.set(cacheKey, keys);
keysCached.add(keys);
}
return keys;
}
var addIfFound = (set$1, obj, key) => {
const opts = resolveObjectKey(obj, key);
if (opts !== void 0) set$1.add(opts);
};
var Config = class {
constructor(config) {
this._config = initConfig(config);
this._scopeCache = /* @__PURE__ */ new Map();
this._resolverCache = /* @__PURE__ */ new Map();
}
get platform() {
return this._config.platform;
}
get type() {
return this._config.type;
}
set type(type) {
this._config.type = type;
}
get data() {
return this._config.data;
}
set data(data) {
this._config.data = initData(data);
}
get options() {
return this._config.options;
}
set options(options) {
this._config.options = options;
}
get plugins() {
return this._config.plugins;
}
update() {
const config = this._config;
this.clearCache();
initOptions(config);
}
clearCache() {
this._scopeCache.clear();
this._resolverCache.clear();
}
datasetScopeKeys(datasetType) {
return cachedKeys(datasetType, () => [[`datasets.${datasetType}`, ""]]);
}
datasetAnimationScopeKeys(datasetType, transition) {
return cachedKeys(`${datasetType}.transition.${transition}`, () => [[`datasets.${datasetType}.transitions.${transition}`, `transitions.${transition}`], [`datasets.${datasetType}`, ""]]);
}
datasetElementScopeKeys(datasetType, elementType) {
return cachedKeys(`${datasetType}-${elementType}`, () => [[
`datasets.${datasetType}.elements.${elementType}`,
`datasets.${datasetType}`,
`elements.${elementType}`,
""
]]);
}
pluginScopeKeys(plugin) {
const id = plugin.id;
const type = this.type;
return cachedKeys(`${type}-plugin-${id}`, () => [[`plugins.${id}`, ...plugin.additionalOptionScopes || []]]);
}
_cachedScopes(mainScope, resetCache) {
const _scopeCache = this._scopeCache;
let cache = _scopeCache.get(mainScope);
if (!cache || resetCache) {
cache = /* @__PURE__ */ new Map();
_scopeCache.set(mainScope, cache);
}
return cache;
}
getOptionScopes(mainScope, keyLists, resetCache) {
const { options, type } = this;
const cache = this._cachedScopes(mainScope, resetCache);
const cached = cache.get(keyLists);
if (cached) return cached;
const scopes = /* @__PURE__ */ new Set();
keyLists.forEach((keys) => {
if (mainScope) {
scopes.add(mainScope);
keys.forEach((key) => addIfFound(scopes, mainScope, key));
}
keys.forEach((key) => addIfFound(scopes, options, key));
keys.forEach((key) => addIfFound(scopes, overrides[type] || {}, key));
keys.forEach((key) => addIfFound(scopes, defaults, key));
keys.forEach((key) => addIfFound(scopes, descriptors, key));
});
const array = Array.from(scopes);
if (array.length === 0) array.push(Object.create(null));
if (keysCached.has(keyLists)) cache.set(keyLists, array);
return array;
}
chartOptionScopes() {
const { options, type } = this;
return [
options,
overrides[type] || {},
defaults.datasets[type] || {},
{ type },
defaults,
descriptors
];
}
resolveNamedOptions(scopes, names$2, context, prefixes = [""]) {
const result = { $shared: true };
const { resolver, subPrefixes } = getResolver(this._resolverCache, scopes, prefixes);
let options = resolver;
if (needContext(resolver, names$2)) {
result.$shared = false;
context = isFunction(context) ? context() : context;
const subResolver = this.createResolver(scopes, context, subPrefixes);
options = _attachContext(resolver, context, subResolver);
}
for (const prop of names$2) result[prop] = options[prop];
return result;
}
createResolver(scopes, context, prefixes = [""], descriptorDefaults) {
const { resolver } = getResolver(this._resolverCache, scopes, prefixes);
return isObject(context) ? _attachContext(resolver, context, void 0, descriptorDefaults) : resolver;
}
};
function getResolver(resolverCache, scopes, prefixes) {
let cache = resolverCache.get(scopes);
if (!cache) {
cache = /* @__PURE__ */ new Map();
resolverCache.set(scopes, cache);
}
const cacheKey = prefixes.join();
let cached = cache.get(cacheKey);
if (!cached) {
cached = {
resolver: _createResolver(scopes, prefixes),
subPrefixes: prefixes.filter((p) => !p.toLowerCase().includes("hover"))
};
cache.set(cacheKey, cached);
}
return cached;
}
var hasFunction = (value) => isObject(value) && Object.getOwnPropertyNames(value).reduce((acc, key) => acc || isFunction(value[key]), false);
function needContext(proxy, names$2) {
const { isScriptable, isIndexable } = _descriptors(proxy);
for (const prop of names$2) {
const scriptable = isScriptable(prop);
const indexable = isIndexable(prop);
const value = (indexable || scriptable) && proxy[prop];
if (scriptable && (isFunction(value) || hasFunction(value)) || indexable && isArray(value)) return true;
}
return false;
}
var version = "4.4.0";
var KNOWN_POSITIONS = [
"top",
"bottom",
"left",
"right",
"chartArea"
];
function positionIsHorizontal(position, axis) {
return position === "top" || position === "bottom" || KNOWN_POSITIONS.indexOf(position) === -1 && axis === "x";
}
function compare2Level(l1, l2) {
return function(a, b) {
return a[l1] === b[l1] ? a[l2] - b[l2] : a[l1] - b[l1];
};
}
function onAnimationsComplete(context) {
const chart = context.chart;
const animationOptions = chart.options.animation;
chart.notifyPlugins("afterRender");
callback(animationOptions && animationOptions.onComplete, [context], chart);
}
function onAnimationProgress(context) {
const chart = context.chart;
const animationOptions = chart.options.animation;
callback(animationOptions && animationOptions.onProgress, [context], chart);
}
function getCanvas(item) {
if (_isDomSupported() && typeof item === "string") item = document.getElementById(item);
else if (item && item.length) item = item[0];
if (item && item.canvas) item = item.canvas;
return item;
}
var instances = {};
var getChart = (key) => {
const canvas = getCanvas(key);
return Object.values(instances).filter((c) => c.canvas === canvas).pop();
};
function moveNumericKeys(obj, start, move) {
const keys = Object.keys(obj);
for (const key of keys) {
const intKey = +key;
if (intKey >= start) {
const value = obj[key];
delete obj[key];
if (move > 0 || intKey > start) obj[intKey + move] = value;
}
}
}
function determineLastEvent(e, lastEvent, inChartArea, isClick) {
if (!inChartArea || e.type === "mouseout") return null;
if (isClick) return lastEvent;
return e;
}
function getSizeForArea(scale, chartArea, field) {
return scale.options.clip ? scale[field] : chartArea[field];
}
function getDatasetArea(meta, chartArea) {
const { xScale, yScale } = meta;
if (xScale && yScale) return {
left: getSizeForArea(xScale, chartArea, "left"),
right: getSizeForArea(xScale, chartArea, "right"),
top: getSizeForArea(yScale, chartArea, "top"),
bottom: getSizeForArea(yScale, chartArea, "bottom")
};
return chartArea;
}
var Chart = class {
static defaults = defaults;
static instances = instances;
static overrides = overrides;
static registry = registry;
static version = version;
static getChart = getChart;
static register(...items) {
registry.add(...items);
invalidatePlugins();
}
static unregister(...items) {
registry.remove(...items);
invalidatePlugins();
}
constructor(item, userConfig) {
const config = this.config = new Config(userConfig);
const initialCanvas = getCanvas(item);
const existingChart = getChart(initialCanvas);
if (existingChart) throw new Error("Canvas is already in use. Chart with ID '" + existingChart.id + "' must be destroyed before the canvas with ID '" + existingChart.canvas.id + "' can be reused.");
const options = config.createResolver(config.chartOptionScopes(), this.getContext());
this.platform = new (config.platform || (_detectPlatform(initialCanvas)))();
this.platform.updateConfig(config);
const context = this.platform.acquireContext(initialCanvas, options.aspectRatio);
const canvas = context && context.canvas;
const height = canvas && canvas.height;
const width = canvas && canvas.width;
this.id = uid();
this.ctx = context;
this.canvas = canvas;
this.width = width;
this.height = height;
this._options = options;
this._aspectRatio = this.aspectRatio;
this._layers = [];
this._metasets = [];
this._stacks = void 0;
this.boxes = [];
this.currentDevicePixelRatio = void 0;
this.chartArea = void 0;
this._active = [];
this._lastEvent = void 0;
this._listeners = {};
this._responsiveListeners = void 0;
this._sortedMetasets = [];
this.scales = {};
this._plugins = new PluginService();
this.$proxies = {};
this._hiddenIndices = {};
this.attached = false;
this._animationsDisabled = void 0;
this.$context = void 0;
this._doResize = debounce((mode) => this.update(mode), options.resizeDelay || 0);
this._dataChanges = [];
instances[this.id] = this;
if (!context || !canvas) {
console.error("Failed to create chart: can't acquire context from the given item");
return;
}
animator.listen(this, "complete", onAnimationsComplete);
animator.listen(this, "progress", onAnimationProgress);
this._initialize();
if (this.attached) this.update();
}
get aspectRatio() {
const { options: { aspectRatio, maintainAspectRatio }, width, height, _aspectRatio } = this;
if (!isNullOrUndef(aspectRatio)) return aspectRatio;
if (maintainAspectRatio && _aspectRatio) return _aspectRatio;
return height ? width / height : null;
}
get data() {
return this.config.data;
}
set data(data) {
this.config.data = data;
}
get options() {
return this._options;
}
set options(options) {
this.config.options = options;
}
get registry() {
return registry;
}
_initialize() {
this.notifyPlugins("beforeInit");
if (this.options.responsive) this.resize();
else retinaScale(this, this.options.devicePixelRatio);
this.bindEvents();
this.notifyPlugins("afterInit");
return this;
}
clear() {
clearCanvas(this.canvas, this.ctx);
return this;
}
stop() {
animator.stop(this);
return this;
}
resize(width, height) {
if (!animator.running(this)) this._resize(width, height);
else this._resizeBeforeDraw = {
width,
height
};
}
_resize(width, height) {
const options = this.options;
const canvas = this.canvas;
const aspectRatio = options.maintainAspectRatio && this.aspectRatio;
const newSize = this.platform.getMaximumSize(canvas, width, height, aspectRatio);
const newRatio = options.devicePixelRatio || this.platform.getDevicePixelRatio();
const mode = this.width ? "resize" : "attach";
this.width = newSize.width;
this.height = newSize.height;
this._aspectRatio = this.aspectRatio;
if (!retinaScale(this, newRatio, true)) return;
this.notifyPlugins("resize", { size: newSize });
callback(options.onResize, [this, newSize], this);
if (this.attached) {
if (this._doResize(mode)) this.render();
}
}
ensureScalesHaveIDs() {
each(this.options.scales || {}, (axisOptions, axisID) => {
axisOptions.id = axisID;
});
}
buildOrUpdateScales() {
const options = this.options;
const scaleOpts = options.scales;
const scales = this.scales;
const updated = Object.keys(scales).reduce((obj, id) => {
obj[id] = false;
return obj;
}, {});
let items = [];
if (scaleOpts) items = items.concat(Object.keys(scaleOpts).map((id) => {
const scaleOptions = scaleOpts[id];
const axis = determineAxis(id, scaleOptions);
const isRadial = axis === "r";
const isHorizontal = axis === "x";
return {
options: scaleOptions,
dposition: isRadial ? "chartArea" : isHorizontal ? "bottom" : "left",
dtype: isRadial ? "radialLinear" : isHorizontal ? "category" : "linear"
};
}));
each(items, (item) => {
const scaleOptions = item.options;
const id = scaleOptions.id;
const axis = determineAxis(id, scaleOptions);
const scaleType = valueOrDefault(scaleOptions.type, item.dtype);
if (scaleOptions.position === void 0 || positionIsHorizontal(scaleOptions.position, axis) !== positionIsHorizontal(item.dposition)) scaleOptions.position = item.dposition;
updated[id] = true;
let scale = null;
if (id in scales && scales[id].type === scaleType) scale = scales[id];
else {
scale = new (registry.getScale(scaleType))({
id,
type: scaleType,
ctx: this.ctx,
chart: this
});
scales[scale.id] = scale;
}
scale.init(scaleOptions, options);
});
each(updated, (hasUpdated, id) => {
if (!hasUpdated) delete scales[id];
});
each(scales, (scale) => {
layouts.configure(this, scale, scale.options);
layouts.addBox(this, scale);
});
}
_updateMetasets() {
const metasets = this._metasets;
const numData = this.data.datasets.length;
const numMeta = metasets.length;
metasets.sort((a, b) => a.index - b.index);
if (numMeta > numData) {
for (let i = numData; i < numMeta; ++i) this._destroyDatasetMeta(i);
metasets.splice(numData, numMeta - numData);
}
this._sortedMetasets = metasets.slice(0).sort(compare2Level("order", "index"));
}
_removeUnreferencedMetasets() {
const { _metasets: metasets, data: { datasets } } = this;
if (metasets.length > datasets.length) delete this._stacks;
metasets.forEach((meta, index$1) => {
if (datasets.filter((x) => x === meta._dataset).length === 0) this._destroyDatasetMeta(index$1);
});
}
buildOrUpdateControllers() {
const newControllers = [];
const datasets = this.data.datasets;
let i, ilen;
this._removeUnreferencedMetasets();
for (i = 0, ilen = datasets.length; i < ilen; i++) {
const dataset = datasets[i];
let meta = this.getDatasetMeta(i);
const type = dataset.type || this.config.type;
if (meta.type && meta.type !== type) {
this._destroyDatasetMeta(i);
meta = this.getDatasetMeta(i);
}
meta.type = type;
meta.indexAxis = dataset.indexAxis || getIndexAxis(type, this.options);
meta.order = dataset.order || 0;
meta.index = i;
meta.label = "" + dataset.label;
meta.visible = this.isDatasetVisible(i);
if (meta.controller) {
meta.controller.updateIndex(i);
meta.controller.linkScales();
} else {
const ControllerClass = registry.getController(type);
const { datasetElementType, dataElementType } = defaults.datasets[type];
Object.assign(ControllerClass, {
dataElementType: registry.getElement(dataElementType),
datasetElementType: datasetElementType && registry.getElement(datasetElementType)
});
meta.controller = new ControllerClass(this, i);
newControllers.push(meta.controller);
}
}
this._updateMetasets();
return newControllers;
}
_resetElements() {
each(this.data.datasets, (dataset, datasetIndex) => {
this.getDatasetMeta(datasetIndex).controller.reset();
}, this);
}
reset() {
this._resetElements();
this.notifyPlugins("reset");
}
update(mode) {
const config = this.config;
config.update();
const options = this._options = config.createResolver(config.chartOptionScopes(), this.getContext());
const animsDisabled = this._animationsDisabled = !options.animation;
this._updateScales();
this._checkEventBindings();
this._updateHiddenIndices();
this._plugins.invalidate();
if (this.notifyPlugins("beforeUpdate", {
mode,
cancelable: true
}) === false) return;
const newControllers = this.buildOrUpdateControllers();
this.notifyPlugins("beforeElementsUpdate");
let minPadding = 0;
for (let i = 0, ilen = this.data.datasets.length; i < ilen; i++) {
const { controller } = this.getDatasetMeta(i);
const reset = !animsDisabled && newControllers.indexOf(controller) === -1;
controller.buildOrUpdateElements(reset);
minPadding = Math.max(+controller.getMaxOverflow(), minPadding);
}
minPadding = this._minPadding = options.layout.autoPadding ? minPadding : 0;
this._updateLayout(minPadding);
if (!animsDisabled) each(newControllers, (controller) => {
controller.reset();
});
this._updateDatasets(mode);
this.notifyPlugins("afterUpdate", { mode });
this._layers.sort(compare2Level("z", "_idx"));
const { _active, _lastEvent } = this;
if (_lastEvent) this._eventHandler(_lastEvent, true);
else if (_active.length) this._updateHoverStyles(_active, _active, true);
this.render();
}
_updateScales() {
each(this.scales, (scale) => {
layouts.removeBox(this, scale);
});
this.ensureScalesHaveIDs();
this.buildOrUpdateScales();
}
_checkEventBindings() {
const options = this.options;
if (!setsEqual(new Set(Object.keys(this._listeners)), new Set(options.events)) || !!this._responsiveListeners !== options.responsive) {
this.unbindEvents();
this.bindEvents();
}
}
_updateHiddenIndices() {
const { _hiddenIndices } = this;
const changes = this._getUniformDataChanges() || [];
for (const { method, start, count } of changes) moveNumericKeys(_hiddenIndices, start, method === "_removeElements" ? -count : count);
}
_getUniformDataChanges() {
const _dataChanges = this._dataChanges;
if (!_dataChanges || !_dataChanges.length) return;
this._dataChanges = [];
const datasetCount = this.data.datasets.length;
const makeSet = (idx) => new Set(_dataChanges.filter((c) => c[0] === idx).map((c, i) => i + "," + c.splice(1).join(",")));
const changeSet = makeSet(0);
for (let i = 1; i < datasetCount; i++) if (!setsEqual(changeSet, makeSet(i))) return;
return Array.from(changeSet).map((c) => c.split(",")).map((a) => ({
method: a[1],
start: +a[2],
count: +a[3]
}));
}
_updateLayout(minPadding) {
if (this.notifyPlugins("beforeLayout", { cancelable: true }) === false) return;
layouts.update(this, this.width, this.height, minPadding);
const area = this.chartArea;
const noArea = area.width <= 0 || area.height <= 0;
this._layers = [];
each(this.boxes, (box) => {
if (noArea && box.position === "chartArea") return;
if (box.configure) box.configure();
this._layers.push(...box._layers());
}, this);
this._layers.forEach((item, index$1) => {
item._idx = index$1;
});
this.notifyPlugins("afterLayout");
}
_updateDatasets(mode) {
if (this.notifyPlugins("beforeDatasetsUpdate", {
mode,
cancelable: true
}) === false) return;
for (let i = 0, ilen = this.data.datasets.length; i < ilen; ++i) this.getDatasetMeta(i).controller.configure();
for (let i = 0, ilen = this.data.datasets.length; i < ilen; ++i) this._updateDataset(i, isFunction(mode) ? mode({ datasetIndex: i }) : mode);
this.notifyPlugins("afterDatasetsUpdate", { mode });
}
_updateDataset(index$1, mode) {
const meta = this.getDatasetMeta(index$1);
const args = {
meta,
index: index$1,
mode,
cancelable: true
};
if (this.notifyPlugins("beforeDatasetUpdate", args) === false) return;
meta.controller._update(mode);
args.cancelable = false;
this.notifyPlugins("afterDatasetUpdate", args);
}
render() {
if (this.notifyPlugins("beforeRender", { cancelable: true }) === false) return;
if (animator.has(this)) {
if (this.attached && !animator.running(this)) animator.start(this);
} else {
this.draw();
onAnimationsComplete({ chart: this });
}
}
draw() {
let i;
if (this._resizeBeforeDraw) {
const { width, height } = this._resizeBeforeDraw;
this._resize(width, height);
this._resizeBeforeDraw = null;
}
this.clear();
if (this.width <= 0 || this.height <= 0) return;
if (this.notifyPlugins("beforeDraw", { cancelable: true }) === false) return;
const layers = this._layers;
for (i = 0; i < layers.length && layers[i].z <= 0; ++i) layers[i].draw(this.chartArea);
this._drawDatasets();
for (; i < layers.length; ++i) layers[i].draw(this.chartArea);
this.notifyPlugins("afterDraw");
}
_getSortedDatasetMetas(filterVisible) {
const metasets = this._sortedMetasets;
const result = [];
let i, ilen;
for (i = 0, ilen = metasets.length; i < ilen; ++i) {
const meta = metasets[i];
if (!filterVisible || meta.visible) result.push(meta);
}
return result;
}
getSortedVisibleDatasetMetas() {
return this._getSortedDatasetMetas(true);
}
_drawDatasets() {
if (this.notifyPlugins("beforeDatasetsDraw", { cancelable: true }) === false) return;
const metasets = this.getSortedVisibleDatasetMetas();
for (let i = metasets.length - 1; i >= 0; --i) this._drawDataset(metasets[i]);
this.notifyPlugins("afterDatasetsDraw");
}
_drawDataset(meta) {
const ctx = this.ctx;
const clip = meta._clip;
const useClip = !clip.disabled;
const area = getDatasetArea(meta, this.chartArea);
const args = {
meta,
index: meta.index,
cancelable: true
};
if (this.notifyPlugins("beforeDatasetDraw", args) === false) return;
if (useClip) clipArea(ctx, {
left: clip.left === false ? 0 : area.left - clip.left,
right: clip.right === false ? this.width : area.right + clip.right,
top: clip.top === false ? 0 : area.top - clip.top,
bottom: clip.bottom === false ? this.height : area.bottom + clip.bottom
});
meta.controller.draw();
if (useClip) unclipArea(ctx);
args.cancelable = false;
this.notifyPlugins("afterDatasetDraw", args);
}
isPointInArea(point) {
return _isPointInArea(point, this.chartArea, this._minPadding);
}
getElementsAtEventForMode(e, mode, options, useFinalPosition) {
const method = Interaction.modes[mode];
if (typeof method === "function") return method(this, e, options, useFinalPosition);
return [];
}
getDatasetMeta(datasetIndex) {
const dataset = this.data.datasets[datasetIndex];
const metasets = this._metasets;
let meta = metasets.filter((x) => x && x._dataset === dataset).pop();
if (!meta) {
meta = {
type: null,
data: [],
dataset: null,
controller: null,
hidden: null,
xAxisID: null,
yAxisID: null,
order: dataset && dataset.order || 0,
index: datasetIndex,
_dataset: dataset,
_parsed: [],
_sorted: false
};
metasets.push(meta);
}
return meta;
}
getContext() {
return this.$context || (this.$context = createContext(null, {
chart: this,
type: "chart"
}));
}
getVisibleDatasetCount() {
return this.getSortedVisibleDatasetMetas().length;
}
isDatasetVisible(datasetIndex) {
const dataset = this.data.datasets[datasetIndex];
if (!dataset) return false;
const meta = this.getDatasetMeta(datasetIndex);
return typeof meta.hidden === "boolean" ? !meta.hidden : !dataset.hidden;
}
setDatasetVisibility(datasetIndex, visible) {
const meta = this.getDatasetMeta(datasetIndex);
meta.hidden = !visible;
}
toggleDataVisibility(index$1) {
this._hiddenIndices[index$1] = !this._hiddenIndices[index$1];
}
getDataVisibility(index$1) {
return !this._hiddenIndices[index$1];
}
_updateVisibility(datasetIndex, dataIndex, visible) {
const mode = visible ? "show" : "hide";
const meta = this.getDatasetMeta(datasetIndex);
const anims = meta.controller._resolveAnimations(void 0, mode);
if (defined(dataIndex)) {
meta.data[dataIndex].hidden = !visible;
this.update();
} else {
this.setDatasetVisibility(datasetIndex, visible);
anims.update(meta, { visible });
this.update((ctx) => ctx.datasetIndex === datasetIndex ? mode : void 0);
}
}
hide(datasetIndex, dataIndex) {
this._updateVisibility(datasetIndex, dataIndex, false);
}
show(datasetIndex, dataIndex) {
this._updateVisibility(datasetIndex, dataIndex, true);
}
_destroyDatasetMeta(datasetIndex) {
const meta = this._metasets[datasetIndex];
if (meta && meta.controller) meta.controller._destroy();
delete this._metasets[datasetIndex];
}
_stop() {
let i, ilen;
this.stop();
animator.remove(this);
for (i = 0, ilen = this.data.datasets.length; i < ilen; ++i) this._destroyDatasetMeta(i);
}
destroy() {
this.notifyPlugins("beforeDestroy");
const { canvas, ctx } = this;
this._stop();
this.config.clearCache();
if (canvas) {
this.unbindEvents();
clearCanvas(canvas, ctx);
this.platform.releaseContext(ctx);
this.canvas = null;
this.ctx = null;
}
delete instances[this.id];
this.notifyPlugins("afterDestroy");
}
toBase64Image(...args) {
return this.canvas.toDataURL(...args);
}
bindEvents() {
this.bindUserEvents();
if (this.options.responsive) this.bindResponsiveEvents();
else this.attached = true;
}
bindUserEvents() {
const listeners = this._listeners;
const platform = this.platform;
const _add = (type, listener$1) => {
platform.addEventListener(this, type, listener$1);
listeners[type] = listener$1;
};
const listener = (e, x, y) => {
e.offsetX = x;
e.offsetY = y;
this._eventHandler(e);
};
each(this.options.events, (type) => _add(type, listener));
}
bindResponsiveEvents() {
if (!this._responsiveListeners) this._responsiveListeners = {};
const listeners = this._responsiveListeners;
const platform = this.platform;
const _add = (type, listener$1) => {
platform.addEventListener(this, type, listener$1);
listeners[type] = listener$1;
};
const _remove = (type, listener$1) => {
if (listeners[type]) {
platform.removeEventListener(this, type, listener$1);
delete listeners[type];
}
};
const listener = (width, height) => {
if (this.canvas) this.resize(width, height);
};
let detached;
const attached = () => {
_remove("attach", attached);
this.attached = true;
this.resize();
_add("resize", listener);
_add("detach", detached);
};
detached = () => {
this.attached = false;
_remove("resize", listener);
this._stop();
this._resize(0, 0);
_add("attach", attached);
};
if (platform.isAttached(this.canvas)) attached();
else detached();
}
unbindEvents() {
each(this._listeners, (listener, type) => {
this.platform.removeEventListener(this, type, listener);
});
this._listeners = {};
each(this._responsiveListeners, (listener, type) => {
this.platform.removeEventListener(this, type, listener);
});
this._responsiveListeners = void 0;
}
updateHoverStyle(items, mode, enabled) {
const prefix = enabled ? "set" : "remove";
let meta, item, i, ilen;
if (mode === "dataset") {
meta = this.getDatasetMeta(items[0].datasetIndex);
meta.controller["_" + prefix + "DatasetHoverStyle"]();
}
for (i = 0, ilen = items.length; i < ilen; ++i) {
item = items[i];
const controller = item && this.getDatasetMeta(item.datasetIndex).controller;
if (controller) controller[prefix + "HoverStyle"](item.element, item.datasetIndex, item.index);
}
}
getActiveElements() {
return this._active || [];
}
setActiveElements(activeElements) {
const lastActive = this._active || [];
const active = activeElements.map(({ datasetIndex, index: index$1 }) => {
const meta = this.getDatasetMeta(datasetIndex);
if (!meta) throw new Error("No dataset found at index " + datasetIndex);
return {
datasetIndex,
element: meta.data[index$1],
index: index$1
};
});
if (!_elementsEqual(active, lastActive)) {
this._active = active;
this._lastEvent = null;
this._updateHoverStyles(active, lastActive);
}
}
notifyPlugins(hook, args, filter) {
return this._plugins.notify(this, hook, args, filter);
}
isPluginEnabled(pluginId) {
return this._plugins._cache.filter((p) => p.plugin.id === pluginId).length === 1;
}
_updateHoverStyles(active, lastActive, replay) {
const hoverOptions = this.options.hover;
const diff = (a, b) => a.filter((x) => !b.some((y) => x.datasetIndex === y.datasetIndex && x.index === y.index));
const deactivated = diff(lastActive, active);
const activated = replay ? active : diff(active, lastActive);
if (deactivated.length) this.updateHoverStyle(deactivated, hoverOptions.mode, false);
if (activated.length && hoverOptions.mode) this.updateHoverStyle(activated, hoverOptions.mode, true);
}
_eventHandler(e, replay) {
const args = {
event: e,
replay,
cancelable: true,
inChartArea: this.isPointInArea(e)
};
const eventFilter = (plugin) => (plugin.options.events || this.options.events).includes(e.native.type);
if (this.notifyPlugins("beforeEvent", args, eventFilter) === false) return;
const changed = this._handleEvent(e, replay, args.inChartArea);
args.cancelable = false;
this.notifyPlugins("afterEvent", args, eventFilter);
if (changed || args.changed) this.render();
return this;
}
_handleEvent(e, replay, inChartArea) {
const { _active: lastActive = [], options } = this;
const useFinalPosition = replay;
const active = this._getActiveElements(e, lastActive, inChartArea, useFinalPosition);
const isClick = _isClickEvent(e);
const lastEvent = determineLastEvent(e, this._lastEvent, inChartArea, isClick);
if (inChartArea) {
this._lastEvent = null;
callback(options.onHover, [
e,
active,
this
], this);
if (isClick) callback(options.onClick, [
e,
active,
this
], this);
}
const changed = !_elementsEqual(active, lastActive);
if (changed || replay) {
this._active = active;
this._updateHoverStyles(active, lastActive, replay);
}
this._lastEvent = lastEvent;
return changed;
}
_getActiveElements(e, lastActive, inChartArea, useFinalPosition) {
if (e.type === "mouseout") return [];
if (!inChartArea) return lastActive;
const hoverOptions = this.options.hover;
return this.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions, useFinalPosition);
}
};
function invalidatePlugins() {
return each(Chart.instances, (chart) => chart._plugins.invalidate());
}
function setStyle(ctx, options, style = options) {
ctx.lineCap = valueOrDefault(style.borderCapStyle, options.borderCapStyle);
ctx.setLineDash(valueOrDefault(style.borderDash, options.borderDash));
ctx.lineDashOffset = valueOrDefault(style.borderDashOffset, options.borderDashOffset);
ctx.lineJoin = valueOrDefault(style.borderJoinStyle, options.borderJoinStyle);
ctx.lineWidth = valueOrDefault(style.borderWidth, options.borderWidth);
ctx.strokeStyle = valueOrDefault(style.borderColor, options.borderColor);
}
function lineTo(ctx, previous, target) {
ctx.lineTo(target.x, target.y);
}
function getLineMethod(options) {
if (options.stepped) return _steppedLineTo;
if (options.tension || options.cubicInterpolationMode === "monotone") return _bezierCurveTo;
return lineTo;
}
function pathVars(points, segment, params = {}) {
const count = points.length;
const { start: paramsStart = 0, end: paramsEnd = count - 1 } = params;
const { start: segmentStart, end: segmentEnd } = segment;
const start = Math.max(paramsStart, segmentStart);
const end = Math.min(paramsEnd, segmentEnd);
const outside = paramsStart < segmentStart && paramsEnd < segmentStart || paramsStart > segmentEnd && paramsEnd > segmentEnd;
return {
count,
start,
loop: segment.loop,
ilen: end < start && !outside ? count + end - start : end - start
};
}
function pathSegment(ctx, line, segment, params) {
const { points, options } = line;
const { count, start, loop, ilen } = pathVars(points, segment, params);
const lineMethod = getLineMethod(options);
let { move = true, reverse } = params || {};
let i, point, prev;
for (i = 0; i <= ilen; ++i) {
point = points[(start + (reverse ? ilen - i : i)) % count];
if (point.skip) continue;
else if (move) {
ctx.moveTo(point.x, point.y);
move = false;
} else lineMethod(ctx, prev, point, reverse, options.stepped);
prev = point;
}
if (loop) {
point = points[(start + (reverse ? ilen : 0)) % count];
lineMethod(ctx, prev, point, reverse, options.stepped);
}
return !!loop;
}
function fastPathSegment(ctx, line, segment, params) {
const points = line.points;
const { count, start, ilen } = pathVars(points, segment, params);
const { move = true, reverse } = params || {};
let avgX = 0;
let countX = 0;
let i, point, prevX, minY, maxY, lastY;
const pointIndex = (index$1) => (start + (reverse ? ilen - index$1 : index$1)) % count;
const drawX = () => {
if (minY !== maxY) {
ctx.lineTo(avgX, maxY);
ctx.lineTo(avgX, minY);
ctx.lineTo(avgX, lastY);
}
};
if (move) {
point = points[pointIndex(0)];
ctx.moveTo(point.x, point.y);
}
for (i = 0; i <= ilen; ++i) {
point = points[pointIndex(i)];
if (point.skip) continue;
const x = point.x;
const y = point.y;
const truncX = x | 0;
if (truncX === prevX) {
if (y < minY) minY = y;
else if (y > maxY) maxY = y;
avgX = (countX * avgX + x) / ++countX;
} else {
drawX();
ctx.lineTo(x, y);
prevX = truncX;
countX = 0;
minY = maxY = y;
}
lastY = y;
}
drawX();
}
function _getSegmentMethod(line) {
const opts = line.options;
const borderDash = opts.borderDash && opts.borderDash.length;
return !line._decimated && !line._loop && !opts.tension && opts.cubicInterpolationMode !== "monotone" && !opts.stepped && !borderDash ? fastPathSegment : pathSegment;
}
function _getInterpolationMethod(options) {
if (options.stepped) return _steppedInterpolation;
if (options.tension || options.cubicInterpolationMode === "monotone") return _bezierInterpolation;
return _pointInLine;
}
function strokePathWithCache(ctx, line, start, count) {
let path = line._path;
if (!path) {
path = line._path = new Path2D();
if (line.path(path, start, count)) path.closePath();
}
setStyle(ctx, line.options);
ctx.stroke(path);
}
function strokePathDirect(ctx, line, start, count) {
const { segments, options } = line;
const segmentMethod = _getSegmentMethod(line);
for (const segment of segments) {
setStyle(ctx, options, segment.style);
ctx.beginPath();
if (segmentMethod(ctx, line, segment, {
start,
end: start + count - 1
})) ctx.closePath();
ctx.stroke();
}
}
var usePath2D = typeof Path2D === "function";
function draw(ctx, line, start, count) {
if (usePath2D && !line.options.segment) strokePathWithCache(ctx, line, start, count);
else strokePathDirect(ctx, line, start, count);
}
var LineElement = class extends Element {
static id = "line";
static defaults = {
borderCapStyle: "butt",
borderDash: [],
borderDashOffset: 0,
borderJoinStyle: "miter",
borderWidth: 3,
capBezierPoints: true,
cubicInterpolationMode: "default",
fill: false,
spanGaps: false,
stepped: false,
tension: 0
};
static defaultRoutes = {
backgroundColor: "backgroundColor",
borderColor: "borderColor"
};
static descriptors = {
_scriptable: true,
_indexable: (name) => name !== "borderDash" && name !== "fill"
};
constructor(cfg) {
super();
this.animated = true;
this.options = void 0;
this._chart = void 0;
this._loop = void 0;
this._fullLoop = void 0;
this._path = void 0;
this._points = void 0;
this._segments = void 0;
this._decimated = false;
this._pointsUpdated = false;
this._datasetIndex = void 0;
if (cfg) Object.assign(this, cfg);
}
updateControlPoints(chartArea, indexAxis) {
const options = this.options;
if ((options.tension || options.cubicInterpolationMode === "monotone") && !options.stepped && !this._pointsUpdated) {
const loop = options.spanGaps ? this._loop : this._fullLoop;
_updateBezierControlPoints(this._points, options, chartArea, loop, indexAxis);
this._pointsUpdated = true;
}
}
set points(points) {
this._points = points;
delete this._segments;
delete this._path;
this._pointsUpdated = false;
}
get points() {
return this._points;
}
get segments() {
return this._segments || (this._segments = _computeSegments(this, this.options.segment));
}
first() {
const segments = this.segments;
const points = this.points;
return segments.length && points[segments[0].start];
}
last() {
const segments = this.segments;
const points = this.points;
const count = segments.length;
return count && points[segments[count - 1].end];
}
interpolate(point, property) {
const options = this.options;
const value = point[property];
const points = this.points;
const segments = _boundSegments(this, {
property,
start: value,
end: value
});
if (!segments.length) return;
const result = [];
const _interpolate = _getInterpolationMethod(options);
let i, ilen;
for (i = 0, ilen = segments.length; i < ilen; ++i) {
const { start, end } = segments[i];
const p1 = points[start];
const p2 = points[end];
if (p1 === p2) {
result.push(p1);
continue;
}
const interpolated = _interpolate(p1, p2, Math.abs((value - p1[property]) / (p2[property] - p1[property])), options.stepped);
interpolated[property] = point[property];
result.push(interpolated);
}
return result.length === 1 ? result[0] : result;
}
pathSegment(ctx, segment, params) {
return _getSegmentMethod(this)(ctx, this, segment, params);
}
path(ctx, start, count) {
const segments = this.segments;
const segmentMethod = _getSegmentMethod(this);
let loop = this._loop;
start = start || 0;
count = count || this.points.length - start;
for (const segment of segments) loop &= segmentMethod(ctx, this, segment, {
start,
end: start + count - 1
});
return !!loop;
}
draw(ctx, chartArea, start, count) {
const options = this.options || {};
if ((this.points || []).length && options.borderWidth) {
ctx.save();
draw(ctx, this, start, count);
ctx.restore();
}
if (this.animated) {
this._pointsUpdated = false;
this._path = void 0;
}
}
};
function inRange$1(el, pos, axis, useFinalPosition) {
const options = el.options;
const { [axis]: value } = el.getProps([axis], useFinalPosition);
return Math.abs(pos - value) < options.radius + options.hitRadius;
}
var PointElement = class extends Element {
static id = "point";
parsed;
skip;
stop;
static defaults = {
borderWidth: 1,
hitRadius: 1,
hoverBorderWidth: 1,
hoverRadius: 4,
pointStyle: "circle",
radius: 3,
rotation: 0
};
static defaultRoutes = {
backgroundColor: "backgroundColor",
borderColor: "borderColor"
};
constructor(cfg) {
super();
this.options = void 0;
this.parsed = void 0;
this.skip = void 0;
this.stop = void 0;
if (cfg) Object.assign(this, cfg);
}
inRange(mouseX, mouseY, useFinalPosition) {
const options = this.options;
const { x, y } = this.getProps(["x", "y"], useFinalPosition);
return Math.pow(mouseX - x, 2) + Math.pow(mouseY - y, 2) < Math.pow(options.hitRadius + options.radius, 2);
}
inXRange(mouseX, useFinalPosition) {
return inRange$1(this, mouseX, "x", useFinalPosition);
}
inYRange(mouseY, useFinalPosition) {
return inRange$1(this, mouseY, "y", useFinalPosition);
}
getCenterPoint(useFinalPosition) {
const { x, y } = this.getProps(["x", "y"], useFinalPosition);
return {
x,
y
};
}
size(options) {
options = options || this.options || {};
let radius = options.radius || 0;
radius = Math.max(radius, radius && options.hoverRadius || 0);
const borderWidth = radius && options.borderWidth || 0;
return (radius + borderWidth) * 2;
}
draw(ctx, area) {
const options = this.options;
if (this.skip || options.radius < .1 || !_isPointInArea(this, area, this.size(options) / 2)) return;
ctx.strokeStyle = options.borderColor;
ctx.lineWidth = options.borderWidth;
ctx.fillStyle = options.backgroundColor;
drawPoint(ctx, options, this.x, this.y);
}
getRange() {
const options = this.options || {};
return options.radius + options.hitRadius;
}
};
function getBarBounds(bar, useFinalPosition) {
const { x, y, base, width, height } = bar.getProps([
"x",
"y",
"base",
"width",
"height"
], useFinalPosition);
let left, right, top, bottom, half;
if (bar.horizontal) {
half = height / 2;
left = Math.min(x, base);
right = Math.max(x, base);
top = y - half;
bottom = y + half;
} else {
half = width / 2;
left = x - half;
right = x + half;
top = Math.min(y, base);
bottom = Math.max(y, base);
}
return {
left,
top,
right,
bottom
};
}
function skipOrLimit(skip$1, value, min, max) {
return skip$1 ? 0 : _limitValue(value, min, max);
}
function parseBorderWidth(bar, maxW, maxH) {
const value = bar.options.borderWidth;
const skip$1 = bar.borderSkipped;
const o = toTRBL(value);
return {
t: skipOrLimit(skip$1.top, o.top, 0, maxH),
r: skipOrLimit(skip$1.right, o.right, 0, maxW),
b: skipOrLimit(skip$1.bottom, o.bottom, 0, maxH),
l: skipOrLimit(skip$1.left, o.left, 0, maxW)
};
}
function parseBorderRadius(bar, maxW, maxH) {
const { enableBorderRadius } = bar.getProps(["enableBorderRadius"]);
const value = bar.options.borderRadius;
const o = toTRBLCorners(value);
const maxR = Math.min(maxW, maxH);
const skip$1 = bar.borderSkipped;
const enableBorder = enableBorderRadius || isObject(value);
return {
topLeft: skipOrLimit(!enableBorder || skip$1.top || skip$1.left, o.topLeft, 0, maxR),
topRight: skipOrLimit(!enableBorder || skip$1.top || skip$1.right, o.topRight, 0, maxR),
bottomLeft: skipOrLimit(!enableBorder || skip$1.bottom || skip$1.left, o.bottomLeft, 0, maxR),
bottomRight: skipOrLimit(!enableBorder || skip$1.bottom || skip$1.right, o.bottomRight, 0, maxR)
};
}
function boundingRects(bar) {
const bounds = getBarBounds(bar);
const width = bounds.right - bounds.left;
const height = bounds.bottom - bounds.top;
const border = parseBorderWidth(bar, width / 2, height / 2);
const radius = parseBorderRadius(bar, width / 2, height / 2);
return {
outer: {
x: bounds.left,
y: bounds.top,
w: width,
h: height,
radius
},
inner: {
x: bounds.left + border.l,
y: bounds.top + border.t,
w: width - border.l - border.r,
h: height - border.t - border.b,
radius: {
topLeft: Math.max(0, radius.topLeft - Math.max(border.t, border.l)),
topRight: Math.max(0, radius.topRight - Math.max(border.t, border.r)),
bottomLeft: Math.max(0, radius.bottomLeft - Math.max(border.b, border.l)),
bottomRight: Math.max(0, radius.bottomRight - Math.max(border.b, border.r))
}
}
};
}
function inRange(bar, x, y, useFinalPosition) {
const skipX = x === null;
const skipY = y === null;
const bounds = bar && !(skipX && skipY) && getBarBounds(bar, useFinalPosition);
return bounds && (skipX || _isBetween(x, bounds.left, bounds.right)) && (skipY || _isBetween(y, bounds.top, bounds.bottom));
}
function hasRadius(radius) {
return radius.topLeft || radius.topRight || radius.bottomLeft || radius.bottomRight;
}
function addNormalRectPath(ctx, rect) {
ctx.rect(rect.x, rect.y, rect.w, rect.h);
}
function inflateRect(rect, amount, refRect = {}) {
const x = rect.x !== refRect.x ? -amount : 0;
const y = rect.y !== refRect.y ? -amount : 0;
const w = (rect.x + rect.w !== refRect.x + refRect.w ? amount : 0) - x;
const h = (rect.y + rect.h !== refRect.y + refRect.h ? amount : 0) - y;
return {
x: rect.x + x,
y: rect.y + y,
w: rect.w + w,
h: rect.h + h,
radius: rect.radius
};
}
var BarElement = class extends Element {
static id = "bar";
static defaults = {
borderSkipped: "start",
borderWidth: 0,
borderRadius: 0,
inflateAmount: "auto",
pointStyle: void 0
};
static defaultRoutes = {
backgroundColor: "backgroundColor",
borderColor: "borderColor"
};
constructor(cfg) {
super();
this.options = void 0;
this.horizontal = void 0;
this.base = void 0;
this.width = void 0;
this.height = void 0;
this.inflateAmount = void 0;
if (cfg) Object.assign(this, cfg);
}
draw(ctx) {
const { inflateAmount, options: { borderColor, backgroundColor } } = this;
const { inner, outer } = boundingRects(this);
const addRectPath = hasRadius(outer.radius) ? addRoundedRectPath : addNormalRectPath;
ctx.save();
if (outer.w !== inner.w || outer.h !== inner.h) {
ctx.beginPath();
addRectPath(ctx, inflateRect(outer, inflateAmount, inner));
ctx.clip();
addRectPath(ctx, inflateRect(inner, -inflateAmount, outer));
ctx.fillStyle = borderColor;
ctx.fill("evenodd");
}
ctx.beginPath();
addRectPath(ctx, inflateRect(inner, inflateAmount));
ctx.fillStyle = backgroundColor;
ctx.fill();
ctx.restore();
}
inRange(mouseX, mouseY, useFinalPosition) {
return inRange(this, mouseX, mouseY, useFinalPosition);
}
inXRange(mouseX, useFinalPosition) {
return inRange(this, mouseX, null, useFinalPosition);
}
inYRange(mouseY, useFinalPosition) {
return inRange(this, null, mouseY, useFinalPosition);
}
getCenterPoint(useFinalPosition) {
const { x, y, base, horizontal } = this.getProps([
"x",
"y",
"base",
"horizontal"
], useFinalPosition);
return {
x: horizontal ? (x + base) / 2 : x,
y: horizontal ? y : (y + base) / 2
};
}
getRange(axis) {
return axis === "x" ? this.width / 2 : this.height / 2;
}
};
function _segments(line, target, property) {
const segments = line.segments;
const points = line.points;
const tpoints = target.points;
const parts = [];
for (const segment of segments) {
let { start, end } = segment;
end = _findSegmentEnd(start, end, points);
const bounds = _getBounds(property, points[start], points[end], segment.loop);
if (!target.segments) {
parts.push({
source: segment,
target: bounds,
start: points[start],
end: points[end]
});
continue;
}
const targetSegments = _boundSegments(target, bounds);
for (const tgt of targetSegments) {
const subBounds = _getBounds(property, tpoints[tgt.start], tpoints[tgt.end], tgt.loop);
const fillSources = _boundSegment(segment, points, subBounds);
for (const fillSource of fillSources) parts.push({
source: fillSource,
target: tgt,
start: { [property]: _getEdge(bounds, subBounds, "start", Math.max) },
end: { [property]: _getEdge(bounds, subBounds, "end", Math.min) }
});
}
}
return parts;
}
function _getBounds(property, first, last, loop) {
if (loop) return;
let start = first[property];
let end = last[property];
if (property === "angle") {
start = _normalizeAngle(start);
end = _normalizeAngle(end);
}
return {
property,
start,
end
};
}
function _pointsFromSegments(boundary, line) {
const { x = null, y = null } = boundary || {};
const linePoints = line.points;
const points = [];
line.segments.forEach(({ start, end }) => {
end = _findSegmentEnd(start, end, linePoints);
const first = linePoints[start];
const last = linePoints[end];
if (y !== null) {
points.push({
x: first.x,
y
});
points.push({
x: last.x,
y
});
} else if (x !== null) {
points.push({
x,
y: first.y
});
points.push({
x,
y: last.y
});
}
});
return points;
}
function _findSegmentEnd(start, end, points) {
for (; end > start; end--) {
const point = points[end];
if (!isNaN(point.x) && !isNaN(point.y)) break;
}
return end;
}
function _getEdge(a, b, prop, fn) {
if (a && b) return fn(a[prop], b[prop]);
return a ? a[prop] : b ? b[prop] : 0;
}
function _createBoundaryLine(boundary, line) {
let points = [];
let _loop = false;
if (isArray(boundary)) {
_loop = true;
points = boundary;
} else points = _pointsFromSegments(boundary, line);
return points.length ? new LineElement({
points,
options: { tension: 0 },
_loop,
_fullLoop: _loop
}) : null;
}
function _shouldApplyFill(source) {
return source && source.fill !== false;
}
function _resolveTarget(sources, index$1, propagate) {
let fill$1 = sources[index$1].fill;
const visited = [index$1];
let target;
if (!propagate) return fill$1;
while (fill$1 !== false && visited.indexOf(fill$1) === -1) {
if (!isNumberFinite(fill$1)) return fill$1;
target = sources[fill$1];
if (!target) return false;
if (target.visible) return fill$1;
visited.push(fill$1);
fill$1 = target.fill;
}
return false;
}
function _decodeFill(line, index$1, count) {
const fill$1 = parseFillOption(line);
if (isObject(fill$1)) return isNaN(fill$1.value) ? false : fill$1;
let target = parseFloat(fill$1);
if (isNumberFinite(target) && Math.floor(target) === target) return decodeTargetIndex(fill$1[0], index$1, target, count);
return [
"origin",
"start",
"end",
"stack",
"shape"
].indexOf(fill$1) >= 0 && fill$1;
}
function decodeTargetIndex(firstCh, index$1, target, count) {
if (firstCh === "-" || firstCh === "+") target = index$1 + target;
if (target === index$1 || target < 0 || target >= count) return false;
return target;
}
function _getTargetPixel(fill$1, scale) {
let pixel = null;
if (fill$1 === "start") pixel = scale.bottom;
else if (fill$1 === "end") pixel = scale.top;
else if (isObject(fill$1)) pixel = scale.getPixelForValue(fill$1.value);
else if (scale.getBasePixel) pixel = scale.getBasePixel();
return pixel;
}
function _getTargetValue(fill$1, scale, startValue) {
let value;
if (fill$1 === "start") value = startValue;
else if (fill$1 === "end") value = scale.options.reverse ? scale.min : scale.max;
else if (isObject(fill$1)) value = fill$1.value;
else value = scale.getBaseValue();
return value;
}
function parseFillOption(line) {
const options = line.options;
const fillOption = options.fill;
let fill$1 = valueOrDefault(fillOption && fillOption.target, fillOption);
if (fill$1 === void 0) fill$1 = !!options.backgroundColor;
if (fill$1 === false || fill$1 === null) return false;
if (fill$1 === true) return "origin";
return fill$1;
}
function _buildStackLine(source) {
const { scale, index: index$1, line } = source;
const points = [];
const segments = line.segments;
const sourcePoints = line.points;
const linesBelow = getLinesBelow(scale, index$1);
linesBelow.push(_createBoundaryLine({
x: null,
y: scale.bottom
}, line));
for (let i = 0; i < segments.length; i++) {
const segment = segments[i];
for (let j = segment.start; j <= segment.end; j++) addPointsBelow(points, sourcePoints[j], linesBelow);
}
return new LineElement({
points,
options: {}
});
}
function getLinesBelow(scale, index$1) {
const below = [];
const metas = scale.getMatchingVisibleMetas("line");
for (let i = 0; i < metas.length; i++) {
const meta = metas[i];
if (meta.index === index$1) break;
if (!meta.hidden) below.unshift(meta.dataset);
}
return below;
}
function addPointsBelow(points, sourcePoint, linesBelow) {
const postponed = [];
for (let j = 0; j < linesBelow.length; j++) {
const line = linesBelow[j];
const { first, last, point } = findPoint(line, sourcePoint, "x");
if (!point || first && last) continue;
if (first) postponed.unshift(point);
else {
points.push(point);
if (!last) break;
}
}
points.push(...postponed);
}
function findPoint(line, sourcePoint, property) {
const point = line.interpolate(sourcePoint, property);
if (!point) return {};
const pointValue = point[property];
const segments = line.segments;
const linePoints = line.points;
let first = false;
let last = false;
for (let i = 0; i < segments.length; i++) {
const segment = segments[i];
const firstValue = linePoints[segment.start][property];
const lastValue = linePoints[segment.end][property];
if (_isBetween(pointValue, firstValue, lastValue)) {
first = pointValue === firstValue;
last = pointValue === lastValue;
break;
}
}
return {
first,
last,
point
};
}
var simpleArc = class {
constructor(opts) {
this.x = opts.x;
this.y = opts.y;
this.radius = opts.radius;
}
pathSegment(ctx, bounds, opts) {
const { x, y, radius } = this;
bounds = bounds || {
start: 0,
end: TAU
};
ctx.arc(x, y, radius, bounds.end, bounds.start, true);
return !opts.bounds;
}
interpolate(point) {
const { x, y, radius } = this;
const angle = point.angle;
return {
x: x + Math.cos(angle) * radius,
y: y + Math.sin(angle) * radius,
angle
};
}
};
function _getTarget(source) {
const { chart, fill: fill$1, line } = source;
if (isNumberFinite(fill$1)) return getLineByIndex(chart, fill$1);
if (fill$1 === "stack") return _buildStackLine(source);
if (fill$1 === "shape") return true;
const boundary = computeBoundary(source);
if (boundary instanceof simpleArc) return boundary;
return _createBoundaryLine(boundary, line);
}
function getLineByIndex(chart, index$1) {
const meta = chart.getDatasetMeta(index$1);
return meta && chart.isDatasetVisible(index$1) ? meta.dataset : null;
}
function computeBoundary(source) {
if ((source.scale || {}).getPointPositionForValue) return computeCircularBoundary(source);
return computeLinearBoundary(source);
}
function computeLinearBoundary(source) {
const { scale = {}, fill: fill$1 } = source;
const pixel = _getTargetPixel(fill$1, scale);
if (isNumberFinite(pixel)) {
const horizontal = scale.isHorizontal();
return {
x: horizontal ? pixel : null,
y: horizontal ? null : pixel
};
}
return null;
}
function computeCircularBoundary(source) {
const { scale, fill: fill$1 } = source;
const options = scale.options;
const length = scale.getLabels().length;
const start = options.reverse ? scale.max : scale.min;
const value = _getTargetValue(fill$1, scale, start);
const target = [];
if (options.grid.circular) {
const center = scale.getPointPositionForValue(0, start);
return new simpleArc({
x: center.x,
y: center.y,
radius: scale.getDistanceFromCenterForValue(value)
});
}
for (let i = 0; i < length; ++i) target.push(scale.getPointPositionForValue(i, value));
return target;
}
function _drawfill(ctx, source, area) {
const target = _getTarget(source);
const { line, scale, axis } = source;
const lineOpts = line.options;
const fillOption = lineOpts.fill;
const color$1 = lineOpts.backgroundColor;
const { above = color$1, below = color$1 } = fillOption || {};
if (target && line.points.length) {
clipArea(ctx, area);
doFill(ctx, {
line,
target,
above,
below,
area,
scale,
axis
});
unclipArea(ctx);
}
}
function doFill(ctx, cfg) {
const { line, target, above, below, area, scale } = cfg;
const property = line._loop ? "angle" : cfg.axis;
ctx.save();
if (property === "x" && below !== above) {
clipVertical(ctx, target, area.top);
fill(ctx, {
line,
target,
color: above,
scale,
property
});
ctx.restore();
ctx.save();
clipVertical(ctx, target, area.bottom);
}
fill(ctx, {
line,
target,
color: below,
scale,
property
});
ctx.restore();
}
function clipVertical(ctx, target, clipY) {
const { segments, points } = target;
let first = true;
let lineLoop = false;
ctx.beginPath();
for (const segment of segments) {
const { start, end } = segment;
const firstPoint = points[start];
const lastPoint = points[_findSegmentEnd(start, end, points)];
if (first) {
ctx.moveTo(firstPoint.x, firstPoint.y);
first = false;
} else {
ctx.lineTo(firstPoint.x, clipY);
ctx.lineTo(firstPoint.x, firstPoint.y);
}
lineLoop = !!target.pathSegment(ctx, segment, { move: lineLoop });
if (lineLoop) ctx.closePath();
else ctx.lineTo(lastPoint.x, clipY);
}
ctx.lineTo(target.first().x, clipY);
ctx.closePath();
ctx.clip();
}
function fill(ctx, cfg) {
const { line, target, property, color: color$1, scale } = cfg;
const segments = _segments(line, target, property);
for (const { source: src, target: tgt, start, end } of segments) {
const { style: { backgroundColor = color$1 } = {} } = src;
const notShape = target !== true;
ctx.save();
ctx.fillStyle = backgroundColor;
clipBounds(ctx, scale, notShape && _getBounds(property, start, end));
ctx.beginPath();
const lineLoop = !!line.pathSegment(ctx, src);
let loop;
if (notShape) {
if (lineLoop) ctx.closePath();
else interpolatedLineTo(ctx, target, end, property);
const targetLoop = !!target.pathSegment(ctx, tgt, {
move: lineLoop,
reverse: true
});
loop = lineLoop && targetLoop;
if (!loop) interpolatedLineTo(ctx, target, start, property);
}
ctx.closePath();
ctx.fill(loop ? "evenodd" : "nonzero");
ctx.restore();
}
}
function clipBounds(ctx, scale, bounds) {
const { top, bottom } = scale.chart.chartArea;
const { property, start, end } = bounds || {};
if (property === "x") {
ctx.beginPath();
ctx.rect(start, top, end - start, bottom - top);
ctx.clip();
}
}
function interpolatedLineTo(ctx, target, point, property) {
const interpolatedPoint = target.interpolate(point, property);
if (interpolatedPoint) ctx.lineTo(interpolatedPoint.x, interpolatedPoint.y);
}
var index = {
id: "filler",
afterDatasetsUpdate(chart, _args, options) {
const count = (chart.data.datasets || []).length;
const sources = [];
let meta, i, line, source;
for (i = 0; i < count; ++i) {
meta = chart.getDatasetMeta(i);
line = meta.dataset;
source = null;
if (line && line.options && line instanceof LineElement) source = {
visible: chart.isDatasetVisible(i),
index: i,
fill: _decodeFill(line, i, count),
chart,
axis: meta.controller.options.indexAxis,
scale: meta.vScale,
line
};
meta.$filler = source;
sources.push(source);
}
for (i = 0; i < count; ++i) {
source = sources[i];
if (!source || source.fill === false) continue;
source.fill = _resolveTarget(sources, i, options.propagate);
}
},
beforeDraw(chart, _args, options) {
const draw$1 = options.drawTime === "beforeDraw";
const metasets = chart.getSortedVisibleDatasetMetas();
const area = chart.chartArea;
for (let i = metasets.length - 1; i >= 0; --i) {
const source = metasets[i].$filler;
if (!source) continue;
source.line.updateControlPoints(area, source.axis);
if (draw$1 && source.fill) _drawfill(chart.ctx, source, area);
}
},
beforeDatasetsDraw(chart, _args, options) {
if (options.drawTime !== "beforeDatasetsDraw") return;
const metasets = chart.getSortedVisibleDatasetMetas();
for (let i = metasets.length - 1; i >= 0; --i) {
const source = metasets[i].$filler;
if (_shouldApplyFill(source)) _drawfill(chart.ctx, source, chart.chartArea);
}
},
beforeDatasetDraw(chart, args, options) {
const source = args.meta.$filler;
if (!_shouldApplyFill(source) || options.drawTime !== "beforeDatasetDraw") return;
_drawfill(chart.ctx, source, chart.chartArea);
},
defaults: {
propagate: true,
drawTime: "beforeDatasetDraw"
}
};
var getBoxSize = (labelOpts, fontSize) => {
let { boxHeight = fontSize, boxWidth = fontSize } = labelOpts;
if (labelOpts.usePointStyle) {
boxHeight = Math.min(boxHeight, fontSize);
boxWidth = labelOpts.pointStyleWidth || Math.min(boxWidth, fontSize);
}
return {
boxWidth,
boxHeight,
itemHeight: Math.max(fontSize, boxHeight)
};
};
var itemsEqual = (a, b) => a !== null && b !== null && a.datasetIndex === b.datasetIndex && a.index === b.index;
var Legend = class extends Element {
constructor(config) {
super();
this._added = false;
this.legendHitBoxes = [];
this._hoveredItem = null;
this.doughnutMode = false;
this.chart = config.chart;
this.options = config.options;
this.ctx = config.ctx;
this.legendItems = void 0;
this.columnSizes = void 0;
this.lineWidths = void 0;
this.maxHeight = void 0;
this.maxWidth = void 0;
this.top = void 0;
this.bottom = void 0;
this.left = void 0;
this.right = void 0;
this.height = void 0;
this.width = void 0;
this._margins = void 0;
this.position = void 0;
this.weight = void 0;
this.fullSize = void 0;
}
update(maxWidth, maxHeight, margins) {
this.maxWidth = maxWidth;
this.maxHeight = maxHeight;
this._margins = margins;
this.setDimensions();
this.buildLabels();
this.fit();
}
setDimensions() {
if (this.isHorizontal()) {
this.width = this.maxWidth;
this.left = this._margins.left;
this.right = this.width;
} else {
this.height = this.maxHeight;
this.top = this._margins.top;
this.bottom = this.height;
}
}
buildLabels() {
const labelOpts = this.options.labels || {};
let legendItems = callback(labelOpts.generateLabels, [this.chart], this) || [];
if (labelOpts.filter) legendItems = legendItems.filter((item) => labelOpts.filter(item, this.chart.data));
if (labelOpts.sort) legendItems = legendItems.sort((a, b) => labelOpts.sort(a, b, this.chart.data));
if (this.options.reverse) legendItems.reverse();
this.legendItems = legendItems;
}
fit() {
const { options, ctx } = this;
if (!options.display) {
this.width = this.height = 0;
return;
}
const labelOpts = options.labels;
const labelFont = toFont(labelOpts.font);
const fontSize = labelFont.size;
const titleHeight = this._computeTitleHeight();
const { boxWidth, itemHeight } = getBoxSize(labelOpts, fontSize);
let width, height;
ctx.font = labelFont.string;
if (this.isHorizontal()) {
width = this.maxWidth;
height = this._fitRows(titleHeight, fontSize, boxWidth, itemHeight) + 10;
} else {
height = this.maxHeight;
width = this._fitCols(titleHeight, labelFont, boxWidth, itemHeight) + 10;
}
this.width = Math.min(width, options.maxWidth || this.maxWidth);
this.height = Math.min(height, options.maxHeight || this.maxHeight);
}
_fitRows(titleHeight, fontSize, boxWidth, itemHeight) {
const { ctx, maxWidth, options: { labels: { padding } } } = this;
const hitboxes = this.legendHitBoxes = [];
const lineWidths = this.lineWidths = [0];
const lineHeight = itemHeight + padding;
let totalHeight = titleHeight;
ctx.textAlign = "left";
ctx.textBaseline = "middle";
let row = -1;
let top = -lineHeight;
this.legendItems.forEach((legendItem, i) => {
const itemWidth = boxWidth + fontSize / 2 + ctx.measureText(legendItem.text).width;
if (i === 0 || lineWidths[lineWidths.length - 1] + itemWidth + 2 * padding > maxWidth) {
totalHeight += lineHeight;
lineWidths[lineWidths.length - (i > 0 ? 0 : 1)] = 0;
top += lineHeight;
row++;
}
hitboxes[i] = {
left: 0,
top,
row,
width: itemWidth,
height: itemHeight
};
lineWidths[lineWidths.length - 1] += itemWidth + padding;
});
return totalHeight;
}
_fitCols(titleHeight, labelFont, boxWidth, _itemHeight) {
const { ctx, maxHeight, options: { labels: { padding } } } = this;
const hitboxes = this.legendHitBoxes = [];
const columnSizes = this.columnSizes = [];
const heightLimit = maxHeight - titleHeight;
let totalWidth = padding;
let currentColWidth = 0;
let currentColHeight = 0;
let left = 0;
let col = 0;
this.legendItems.forEach((legendItem, i) => {
const { itemWidth, itemHeight } = calculateItemSize(boxWidth, labelFont, ctx, legendItem, _itemHeight);
if (i > 0 && currentColHeight + itemHeight + 2 * padding > heightLimit) {
totalWidth += currentColWidth + padding;
columnSizes.push({
width: currentColWidth,
height: currentColHeight
});
left += currentColWidth + padding;
col++;
currentColWidth = currentColHeight = 0;
}
hitboxes[i] = {
left,
top: currentColHeight,
col,
width: itemWidth,
height: itemHeight
};
currentColWidth = Math.max(currentColWidth, itemWidth);
currentColHeight += itemHeight + padding;
});
totalWidth += currentColWidth;
columnSizes.push({
width: currentColWidth,
height: currentColHeight
});
return totalWidth;
}
adjustHitBoxes() {
if (!this.options.display) return;
const titleHeight = this._computeTitleHeight();
const { legendHitBoxes: hitboxes, options: { align, labels: { padding }, rtl } } = this;
const rtlHelper = getRtlAdapter(rtl, this.left, this.width);
if (this.isHorizontal()) {
let row = 0;
let left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]);
for (const hitbox of hitboxes) {
if (row !== hitbox.row) {
row = hitbox.row;
left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]);
}
hitbox.top += this.top + titleHeight + padding;
hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(left), hitbox.width);
left += hitbox.width + padding;
}
} else {
let col = 0;
let top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height);
for (const hitbox of hitboxes) {
if (hitbox.col !== col) {
col = hitbox.col;
top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height);
}
hitbox.top = top;
hitbox.left += this.left + padding;
hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(hitbox.left), hitbox.width);
top += hitbox.height + padding;
}
}
}
isHorizontal() {
return this.options.position === "top" || this.options.position === "bottom";
}
draw() {
if (this.options.display) {
const ctx = this.ctx;
clipArea(ctx, this);
this._draw();
unclipArea(ctx);
}
}
_draw() {
const { options: opts, columnSizes, lineWidths, ctx } = this;
const { align, labels: labelOpts } = opts;
const defaultColor = defaults.color;
const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width);
const labelFont = toFont(labelOpts.font);
const { padding } = labelOpts;
const fontSize = labelFont.size;
const halfFontSize = fontSize / 2;
let cursor;
this.drawTitle();
ctx.textAlign = rtlHelper.textAlign("left");
ctx.textBaseline = "middle";
ctx.lineWidth = .5;
ctx.font = labelFont.string;
const { boxWidth, boxHeight, itemHeight } = getBoxSize(labelOpts, fontSize);
const drawLegendBox = function(x, y, legendItem) {
if (isNaN(boxWidth) || boxWidth <= 0 || isNaN(boxHeight) || boxHeight < 0) return;
ctx.save();
const lineWidth = valueOrDefault(legendItem.lineWidth, 1);
ctx.fillStyle = valueOrDefault(legendItem.fillStyle, defaultColor);
ctx.lineCap = valueOrDefault(legendItem.lineCap, "butt");
ctx.lineDashOffset = valueOrDefault(legendItem.lineDashOffset, 0);
ctx.lineJoin = valueOrDefault(legendItem.lineJoin, "miter");
ctx.lineWidth = lineWidth;
ctx.strokeStyle = valueOrDefault(legendItem.strokeStyle, defaultColor);
ctx.setLineDash(valueOrDefault(legendItem.lineDash, []));
if (labelOpts.usePointStyle) drawPointLegend(ctx, {
radius: boxHeight * Math.SQRT2 / 2,
pointStyle: legendItem.pointStyle,
rotation: legendItem.rotation,
borderWidth: lineWidth
}, rtlHelper.xPlus(x, boxWidth / 2), y + halfFontSize, labelOpts.pointStyleWidth && boxWidth);
else {
const yBoxTop = y + Math.max((fontSize - boxHeight) / 2, 0);
const xBoxLeft = rtlHelper.leftForLtr(x, boxWidth);
const borderRadius = toTRBLCorners(legendItem.borderRadius);
ctx.beginPath();
if (Object.values(borderRadius).some((v) => v !== 0)) addRoundedRectPath(ctx, {
x: xBoxLeft,
y: yBoxTop,
w: boxWidth,
h: boxHeight,
radius: borderRadius
});
else ctx.rect(xBoxLeft, yBoxTop, boxWidth, boxHeight);
ctx.fill();
if (lineWidth !== 0) ctx.stroke();
}
ctx.restore();
};
const fillText = function(x, y, legendItem) {
renderText(ctx, legendItem.text, x, y + itemHeight / 2, labelFont, {
strikethrough: legendItem.hidden,
textAlign: rtlHelper.textAlign(legendItem.textAlign)
});
};
const isHorizontal = this.isHorizontal();
const titleHeight = this._computeTitleHeight();
if (isHorizontal) cursor = {
x: _alignStartEnd(align, this.left + padding, this.right - lineWidths[0]),
y: this.top + padding + titleHeight,
line: 0
};
else cursor = {
x: this.left + padding,
y: _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[0].height),
line: 0
};
overrideTextDirection(this.ctx, opts.textDirection);
const lineHeight = itemHeight + padding;
this.legendItems.forEach((legendItem, i) => {
ctx.strokeStyle = legendItem.fontColor;
ctx.fillStyle = legendItem.fontColor;
const textWidth = ctx.measureText(legendItem.text).width;
const textAlign = rtlHelper.textAlign(legendItem.textAlign || (legendItem.textAlign = labelOpts.textAlign));
const width = boxWidth + halfFontSize + textWidth;
let x = cursor.x;
let y = cursor.y;
rtlHelper.setWidth(this.width);
if (isHorizontal) {
if (i > 0 && x + width + padding > this.right) {
y = cursor.y += lineHeight;
cursor.line++;
x = cursor.x = _alignStartEnd(align, this.left + padding, this.right - lineWidths[cursor.line]);
}
} else if (i > 0 && y + lineHeight > this.bottom) {
x = cursor.x = x + columnSizes[cursor.line].width + padding;
cursor.line++;
y = cursor.y = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[cursor.line].height);
}
drawLegendBox(rtlHelper.x(x), y, legendItem);
x = _textX(textAlign, x + boxWidth + halfFontSize, isHorizontal ? x + width : this.right, opts.rtl);
fillText(rtlHelper.x(x), y, legendItem);
if (isHorizontal) cursor.x += width + padding;
else if (typeof legendItem.text !== "string") {
const fontLineHeight = labelFont.lineHeight;
cursor.y += calculateLegendItemHeight(legendItem, fontLineHeight) + padding;
} else cursor.y += lineHeight;
});
restoreTextDirection(this.ctx, opts.textDirection);
}
drawTitle() {
const opts = this.options;
const titleOpts = opts.title;
const titleFont = toFont(titleOpts.font);
const titlePadding = toPadding(titleOpts.padding);
if (!titleOpts.display) return;
const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width);
const ctx = this.ctx;
const position = titleOpts.position;
const halfFontSize = titleFont.size / 2;
const topPaddingPlusHalfFontSize = titlePadding.top + halfFontSize;
let y;
let left = this.left;
let maxWidth = this.width;
if (this.isHorizontal()) {
maxWidth = Math.max(...this.lineWidths);
y = this.top + topPaddingPlusHalfFontSize;
left = _alignStartEnd(opts.align, left, this.right - maxWidth);
} else {
const maxHeight = this.columnSizes.reduce((acc, size) => Math.max(acc, size.height), 0);
y = topPaddingPlusHalfFontSize + _alignStartEnd(opts.align, this.top, this.bottom - maxHeight - opts.labels.padding - this._computeTitleHeight());
}
const x = _alignStartEnd(position, left, left + maxWidth);
ctx.textAlign = rtlHelper.textAlign(_toLeftRightCenter(position));
ctx.textBaseline = "middle";
ctx.strokeStyle = titleOpts.color;
ctx.fillStyle = titleOpts.color;
ctx.font = titleFont.string;
renderText(ctx, titleOpts.text, x, y, titleFont);
}
_computeTitleHeight() {
const titleOpts = this.options.title;
const titleFont = toFont(titleOpts.font);
const titlePadding = toPadding(titleOpts.padding);
return titleOpts.display ? titleFont.lineHeight + titlePadding.height : 0;
}
_getLegendItemAt(x, y) {
let i, hitBox, lh;
if (_isBetween(x, this.left, this.right) && _isBetween(y, this.top, this.bottom)) {
lh = this.legendHitBoxes;
for (i = 0; i < lh.length; ++i) {
hitBox = lh[i];
if (_isBetween(x, hitBox.left, hitBox.left + hitBox.width) && _isBetween(y, hitBox.top, hitBox.top + hitBox.height)) return this.legendItems[i];
}
}
return null;
}
handleEvent(e) {
const opts = this.options;
if (!isListened(e.type, opts)) return;
const hoveredItem = this._getLegendItemAt(e.x, e.y);
if (e.type === "mousemove" || e.type === "mouseout") {
const previous = this._hoveredItem;
const sameItem = itemsEqual(previous, hoveredItem);
if (previous && !sameItem) callback(opts.onLeave, [
e,
previous,
this
], this);
this._hoveredItem = hoveredItem;
if (hoveredItem && !sameItem) callback(opts.onHover, [
e,
hoveredItem,
this
], this);
} else if (hoveredItem) callback(opts.onClick, [
e,
hoveredItem,
this
], this);
}
};
function calculateItemSize(boxWidth, labelFont, ctx, legendItem, _itemHeight) {
return {
itemWidth: calculateItemWidth(legendItem, boxWidth, labelFont, ctx),
itemHeight: calculateItemHeight(_itemHeight, legendItem, labelFont.lineHeight)
};
}
function calculateItemWidth(legendItem, boxWidth, labelFont, ctx) {
let legendItemText = legendItem.text;
if (legendItemText && typeof legendItemText !== "string") legendItemText = legendItemText.reduce((a, b) => a.length > b.length ? a : b);
return boxWidth + labelFont.size / 2 + ctx.measureText(legendItemText).width;
}
function calculateItemHeight(_itemHeight, legendItem, fontLineHeight) {
let itemHeight = _itemHeight;
if (typeof legendItem.text !== "string") itemHeight = calculateLegendItemHeight(legendItem, fontLineHeight);
return itemHeight;
}
function calculateLegendItemHeight(legendItem, fontLineHeight) {
return fontLineHeight * (legendItem.text ? legendItem.text.length : 0);
}
function isListened(type, opts) {
if ((type === "mousemove" || type === "mouseout") && (opts.onHover || opts.onLeave)) return true;
if (opts.onClick && (type === "click" || type === "mouseup")) return true;
return false;
}
var plugin_legend = {
id: "legend",
_element: Legend,
start(chart, _args, options) {
const legend = chart.legend = new Legend({
ctx: chart.ctx,
options,
chart
});
layouts.configure(chart, legend, options);
layouts.addBox(chart, legend);
},
stop(chart) {
layouts.removeBox(chart, chart.legend);
delete chart.legend;
},
beforeUpdate(chart, _args, options) {
const legend = chart.legend;
layouts.configure(chart, legend, options);
legend.options = options;
},
afterUpdate(chart) {
const legend = chart.legend;
legend.buildLabels();
legend.adjustHitBoxes();
},
afterEvent(chart, args) {
if (!args.replay) chart.legend.handleEvent(args.event);
},
defaults: {
display: true,
position: "top",
align: "center",
fullSize: true,
reverse: false,
weight: 1e3,
onClick(e, legendItem, legend) {
const index$1 = legendItem.datasetIndex;
const ci = legend.chart;
if (ci.isDatasetVisible(index$1)) {
ci.hide(index$1);
legendItem.hidden = true;
} else {
ci.show(index$1);
legendItem.hidden = false;
}
},
onHover: null,
onLeave: null,
labels: {
color: (ctx) => ctx.chart.options.color,
boxWidth: 40,
padding: 10,
generateLabels(chart) {
const datasets = chart.data.datasets;
const { labels: { usePointStyle, pointStyle, textAlign, color: color$1, useBorderRadius, borderRadius } } = chart.legend.options;
return chart._getSortedDatasetMetas().map((meta) => {
const style = meta.controller.getStyle(usePointStyle ? 0 : void 0);
const borderWidth = toPadding(style.borderWidth);
return {
text: datasets[meta.index].label,
fillStyle: style.backgroundColor,
fontColor: color$1,
hidden: !meta.visible,
lineCap: style.borderCapStyle,
lineDash: style.borderDash,
lineDashOffset: style.borderDashOffset,
lineJoin: style.borderJoinStyle,
lineWidth: (borderWidth.width + borderWidth.height) / 4,
strokeStyle: style.borderColor,
pointStyle: pointStyle || style.pointStyle,
rotation: style.rotation,
textAlign: textAlign || style.textAlign,
borderRadius: useBorderRadius && (borderRadius || style.borderRadius),
datasetIndex: meta.index
};
}, this);
}
},
title: {
color: (ctx) => ctx.chart.options.color,
display: false,
position: "center",
text: ""
}
},
descriptors: {
_scriptable: (name) => !name.startsWith("on"),
labels: { _scriptable: (name) => ![
"generateLabels",
"filter",
"sort"
].includes(name) }
}
};
var Title = class extends Element {
constructor(config) {
super();
this.chart = config.chart;
this.options = config.options;
this.ctx = config.ctx;
this._padding = void 0;
this.top = void 0;
this.bottom = void 0;
this.left = void 0;
this.right = void 0;
this.width = void 0;
this.height = void 0;
this.position = void 0;
this.weight = void 0;
this.fullSize = void 0;
}
update(maxWidth, maxHeight) {
const opts = this.options;
this.left = 0;
this.top = 0;
if (!opts.display) {
this.width = this.height = this.right = this.bottom = 0;
return;
}
this.width = this.right = maxWidth;
this.height = this.bottom = maxHeight;
const lineCount = isArray(opts.text) ? opts.text.length : 1;
this._padding = toPadding(opts.padding);
const textSize = lineCount * toFont(opts.font).lineHeight + this._padding.height;
if (this.isHorizontal()) this.height = textSize;
else this.width = textSize;
}
isHorizontal() {
const pos = this.options.position;
return pos === "top" || pos === "bottom";
}
_drawArgs(offset) {
const { top, left, bottom, right, options } = this;
const align = options.align;
let rotation = 0;
let maxWidth, titleX, titleY;
if (this.isHorizontal()) {
titleX = _alignStartEnd(align, left, right);
titleY = top + offset;
maxWidth = right - left;
} else {
if (options.position === "left") {
titleX = left + offset;
titleY = _alignStartEnd(align, bottom, top);
rotation = PI * -.5;
} else {
titleX = right - offset;
titleY = _alignStartEnd(align, top, bottom);
rotation = PI * .5;
}
maxWidth = bottom - top;
}
return {
titleX,
titleY,
maxWidth,
rotation
};
}
draw() {
const ctx = this.ctx;
const opts = this.options;
if (!opts.display) return;
const fontOpts = toFont(opts.font);
const offset = fontOpts.lineHeight / 2 + this._padding.top;
const { titleX, titleY, maxWidth, rotation } = this._drawArgs(offset);
renderText(ctx, opts.text, 0, 0, fontOpts, {
color: opts.color,
maxWidth,
rotation,
textAlign: _toLeftRightCenter(opts.align),
textBaseline: "middle",
translation: [titleX, titleY]
});
}
};
function createTitle(chart, titleOpts) {
const title = new Title({
ctx: chart.ctx,
options: titleOpts,
chart
});
layouts.configure(chart, title, titleOpts);
layouts.addBox(chart, title);
chart.titleBlock = title;
}
var plugin_title = {
id: "title",
_element: Title,
start(chart, _args, options) {
createTitle(chart, options);
},
stop(chart) {
const titleBlock = chart.titleBlock;
layouts.removeBox(chart, titleBlock);
delete chart.titleBlock;
},
beforeUpdate(chart, _args, options) {
const title = chart.titleBlock;
layouts.configure(chart, title, options);
title.options = options;
},
defaults: {
align: "center",
display: false,
font: { weight: "bold" },
fullSize: true,
padding: 10,
position: "top",
text: "",
weight: 2e3
},
defaultRoutes: { color: "color" },
descriptors: {
_scriptable: true,
_indexable: false
}
};
var positioners = {
average(items) {
if (!items.length) return false;
let i, len;
let x = 0;
let y = 0;
let count = 0;
for (i = 0, len = items.length; i < len; ++i) {
const el = items[i].element;
if (el && el.hasValue()) {
const pos = el.tooltipPosition();
x += pos.x;
y += pos.y;
++count;
}
}
return {
x: x / count,
y: y / count
};
},
nearest(items, eventPosition) {
if (!items.length) return false;
let x = eventPosition.x;
let y = eventPosition.y;
let minDistance = Number.POSITIVE_INFINITY;
let i, len, nearestElement;
for (i = 0, len = items.length; i < len; ++i) {
const el = items[i].element;
if (el && el.hasValue()) {
const d = distanceBetweenPoints(eventPosition, el.getCenterPoint());
if (d < minDistance) {
minDistance = d;
nearestElement = el;
}
}
}
if (nearestElement) {
const tp = nearestElement.tooltipPosition();
x = tp.x;
y = tp.y;
}
return {
x,
y
};
}
};
function pushOrConcat(base, toPush) {
if (toPush) if (isArray(toPush)) Array.prototype.push.apply(base, toPush);
else base.push(toPush);
return base;
}
function splitNewlines(str) {
if ((typeof str === "string" || str instanceof String) && str.indexOf("\n") > -1) return str.split("\n");
return str;
}
function createTooltipItem(chart, item) {
const { element, datasetIndex, index: index$1 } = item;
const controller = chart.getDatasetMeta(datasetIndex).controller;
const { label, value } = controller.getLabelAndValue(index$1);
return {
chart,
label,
parsed: controller.getParsed(index$1),
raw: chart.data.datasets[datasetIndex].data[index$1],
formattedValue: value,
dataset: controller.getDataset(),
dataIndex: index$1,
datasetIndex,
element
};
}
function getTooltipSize(tooltip, options) {
const ctx = tooltip.chart.ctx;
const { body, footer, title } = tooltip;
const { boxWidth, boxHeight } = options;
const bodyFont = toFont(options.bodyFont);
const titleFont = toFont(options.titleFont);
const footerFont = toFont(options.footerFont);
const titleLineCount = title.length;
const footerLineCount = footer.length;
const bodyLineItemCount = body.length;
const padding = toPadding(options.padding);
let height = padding.height;
let width = 0;
let combinedBodyLength = body.reduce((count, bodyItem) => count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length, 0);
combinedBodyLength += tooltip.beforeBody.length + tooltip.afterBody.length;
if (titleLineCount) height += titleLineCount * titleFont.lineHeight + (titleLineCount - 1) * options.titleSpacing + options.titleMarginBottom;
if (combinedBodyLength) {
const bodyLineHeight = options.displayColors ? Math.max(boxHeight, bodyFont.lineHeight) : bodyFont.lineHeight;
height += bodyLineItemCount * bodyLineHeight + (combinedBodyLength - bodyLineItemCount) * bodyFont.lineHeight + (combinedBodyLength - 1) * options.bodySpacing;
}
if (footerLineCount) height += options.footerMarginTop + footerLineCount * footerFont.lineHeight + (footerLineCount - 1) * options.footerSpacing;
let widthPadding = 0;
const maxLineWidth = function(line) {
width = Math.max(width, ctx.measureText(line).width + widthPadding);
};
ctx.save();
ctx.font = titleFont.string;
each(tooltip.title, maxLineWidth);
ctx.font = bodyFont.string;
each(tooltip.beforeBody.concat(tooltip.afterBody), maxLineWidth);
widthPadding = options.displayColors ? boxWidth + 2 + options.boxPadding : 0;
each(body, (bodyItem) => {
each(bodyItem.before, maxLineWidth);
each(bodyItem.lines, maxLineWidth);
each(bodyItem.after, maxLineWidth);
});
widthPadding = 0;
ctx.font = footerFont.string;
each(tooltip.footer, maxLineWidth);
ctx.restore();
width += padding.width;
return {
width,
height
};
}
function determineYAlign(chart, size) {
const { y, height } = size;
if (y < height / 2) return "top";
else if (y > chart.height - height / 2) return "bottom";
return "center";
}
function doesNotFitWithAlign(xAlign, chart, options, size) {
const { x, width } = size;
const caret = options.caretSize + options.caretPadding;
if (xAlign === "left" && x + width + caret > chart.width) return true;
if (xAlign === "right" && x - width - caret < 0) return true;
}
function determineXAlign(chart, options, size, yAlign) {
const { x, width } = size;
const { width: chartWidth, chartArea: { left, right } } = chart;
let xAlign = "center";
if (yAlign === "center") xAlign = x <= (left + right) / 2 ? "left" : "right";
else if (x <= width / 2) xAlign = "left";
else if (x >= chartWidth - width / 2) xAlign = "right";
if (doesNotFitWithAlign(xAlign, chart, options, size)) xAlign = "center";
return xAlign;
}
function determineAlignment(chart, options, size) {
const yAlign = size.yAlign || options.yAlign || determineYAlign(chart, size);
return {
xAlign: size.xAlign || options.xAlign || determineXAlign(chart, options, size, yAlign),
yAlign
};
}
function alignX(size, xAlign) {
let { x, width } = size;
if (xAlign === "right") x -= width;
else if (xAlign === "center") x -= width / 2;
return x;
}
function alignY(size, yAlign, paddingAndSize) {
let { y, height } = size;
if (yAlign === "top") y += paddingAndSize;
else if (yAlign === "bottom") y -= height + paddingAndSize;
else y -= height / 2;
return y;
}
function getBackgroundPoint(options, size, alignment, chart) {
const { caretSize, caretPadding, cornerRadius } = options;
const { xAlign, yAlign } = alignment;
const paddingAndSize = caretSize + caretPadding;
const { topLeft, topRight, bottomLeft, bottomRight } = toTRBLCorners(cornerRadius);
let x = alignX(size, xAlign);
const y = alignY(size, yAlign, paddingAndSize);
if (yAlign === "center") {
if (xAlign === "left") x += paddingAndSize;
else if (xAlign === "right") x -= paddingAndSize;
} else if (xAlign === "left") x -= Math.max(topLeft, bottomLeft) + caretSize;
else if (xAlign === "right") x += Math.max(topRight, bottomRight) + caretSize;
return {
x: _limitValue(x, 0, chart.width - size.width),
y: _limitValue(y, 0, chart.height - size.height)
};
}
function getAlignedX(tooltip, align, options) {
const padding = toPadding(options.padding);
return align === "center" ? tooltip.x + tooltip.width / 2 : align === "right" ? tooltip.x + tooltip.width - padding.right : tooltip.x + padding.left;
}
function getBeforeAfterBodyLines(callback$1) {
return pushOrConcat([], splitNewlines(callback$1));
}
function createTooltipContext(parent, tooltip, tooltipItems) {
return createContext(parent, {
tooltip,
tooltipItems,
type: "tooltip"
});
}
function overrideCallbacks(callbacks, context) {
const override = context && context.dataset && context.dataset.tooltip && context.dataset.tooltip.callbacks;
return override ? callbacks.override(override) : callbacks;
}
var defaultCallbacks = {
beforeTitle: noop,
title(tooltipItems) {
if (tooltipItems.length > 0) {
const item = tooltipItems[0];
const labels = item.chart.data.labels;
const labelCount = labels ? labels.length : 0;
if (this && this.options && this.options.mode === "dataset") return item.dataset.label || "";
else if (item.label) return item.label;
else if (labelCount > 0 && item.dataIndex < labelCount) return labels[item.dataIndex];
}
return "";
},
afterTitle: noop,
beforeBody: noop,
beforeLabel: noop,
label(tooltipItem) {
if (this && this.options && this.options.mode === "dataset") return tooltipItem.label + ": " + tooltipItem.formattedValue || tooltipItem.formattedValue;
let label = tooltipItem.dataset.label || "";
if (label) label += ": ";
const value = tooltipItem.formattedValue;
if (!isNullOrUndef(value)) label += value;
return label;
},
labelColor(tooltipItem) {
const options = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex).controller.getStyle(tooltipItem.dataIndex);
return {
borderColor: options.borderColor,
backgroundColor: options.backgroundColor,
borderWidth: options.borderWidth,
borderDash: options.borderDash,
borderDashOffset: options.borderDashOffset,
borderRadius: 0
};
},
labelTextColor() {
return this.options.bodyColor;
},
labelPointStyle(tooltipItem) {
const options = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex).controller.getStyle(tooltipItem.dataIndex);
return {
pointStyle: options.pointStyle,
rotation: options.rotation
};
},
afterLabel: noop,
afterBody: noop,
beforeFooter: noop,
footer: noop,
afterFooter: noop
};
function invokeCallbackWithFallback(callbacks, name, ctx, arg) {
const result = callbacks[name].call(ctx, arg);
if (typeof result === "undefined") return defaultCallbacks[name].call(ctx, arg);
return result;
}
var Tooltip = class extends Element {
static positioners = positioners;
constructor(config) {
super();
this.opacity = 0;
this._active = [];
this._eventPosition = void 0;
this._size = void 0;
this._cachedAnimations = void 0;
this._tooltipItems = [];
this.$animations = void 0;
this.$context = void 0;
this.chart = config.chart;
this.options = config.options;
this.dataPoints = void 0;
this.title = void 0;
this.beforeBody = void 0;
this.body = void 0;
this.afterBody = void 0;
this.footer = void 0;
this.xAlign = void 0;
this.yAlign = void 0;
this.x = void 0;
this.y = void 0;
this.height = void 0;
this.width = void 0;
this.caretX = void 0;
this.caretY = void 0;
this.labelColors = void 0;
this.labelPointStyles = void 0;
this.labelTextColors = void 0;
}
initialize(options) {
this.options = options;
this._cachedAnimations = void 0;
this.$context = void 0;
}
_resolveAnimations() {
const cached = this._cachedAnimations;
if (cached) return cached;
const chart = this.chart;
const options = this.options.setContext(this.getContext());
const opts = options.enabled && chart.options.animation && options.animations;
const animations = new Animations(this.chart, opts);
if (opts._cacheable) this._cachedAnimations = Object.freeze(animations);
return animations;
}
getContext() {
return this.$context || (this.$context = createTooltipContext(this.chart.getContext(), this, this._tooltipItems));
}
getTitle(context, options) {
const { callbacks } = options;
const beforeTitle = invokeCallbackWithFallback(callbacks, "beforeTitle", this, context);
const title = invokeCallbackWithFallback(callbacks, "title", this, context);
const afterTitle = invokeCallbackWithFallback(callbacks, "afterTitle", this, context);
let lines = [];
lines = pushOrConcat(lines, splitNewlines(beforeTitle));
lines = pushOrConcat(lines, splitNewlines(title));
lines = pushOrConcat(lines, splitNewlines(afterTitle));
return lines;
}
getBeforeBody(tooltipItems, options) {
return getBeforeAfterBodyLines(invokeCallbackWithFallback(options.callbacks, "beforeBody", this, tooltipItems));
}
getBody(tooltipItems, options) {
const { callbacks } = options;
const bodyItems = [];
each(tooltipItems, (context) => {
const bodyItem = {
before: [],
lines: [],
after: []
};
const scoped = overrideCallbacks(callbacks, context);
pushOrConcat(bodyItem.before, splitNewlines(invokeCallbackWithFallback(scoped, "beforeLabel", this, context)));
pushOrConcat(bodyItem.lines, invokeCallbackWithFallback(scoped, "label", this, context));
pushOrConcat(bodyItem.after, splitNewlines(invokeCallbackWithFallback(scoped, "afterLabel", this, context)));
bodyItems.push(bodyItem);
});
return bodyItems;
}
getAfterBody(tooltipItems, options) {
return getBeforeAfterBodyLines(invokeCallbackWithFallback(options.callbacks, "afterBody", this, tooltipItems));
}
getFooter(tooltipItems, options) {
const { callbacks } = options;
const beforeFooter = invokeCallbackWithFallback(callbacks, "beforeFooter", this, tooltipItems);
const footer = invokeCallbackWithFallback(callbacks, "footer", this, tooltipItems);
const afterFooter = invokeCallbackWithFallback(callbacks, "afterFooter", this, tooltipItems);
let lines = [];
lines = pushOrConcat(lines, splitNewlines(beforeFooter));
lines = pushOrConcat(lines, splitNewlines(footer));
lines = pushOrConcat(lines, splitNewlines(afterFooter));
return lines;
}
_createItems(options) {
const active = this._active;
const data = this.chart.data;
const labelColors = [];
const labelPointStyles = [];
const labelTextColors = [];
let tooltipItems = [];
let i, len;
for (i = 0, len = active.length; i < len; ++i) tooltipItems.push(createTooltipItem(this.chart, active[i]));
if (options.filter) tooltipItems = tooltipItems.filter((element, index$1, array) => options.filter(element, index$1, array, data));
if (options.itemSort) tooltipItems = tooltipItems.sort((a, b) => options.itemSort(a, b, data));
each(tooltipItems, (context) => {
const scoped = overrideCallbacks(options.callbacks, context);
labelColors.push(invokeCallbackWithFallback(scoped, "labelColor", this, context));
labelPointStyles.push(invokeCallbackWithFallback(scoped, "labelPointStyle", this, context));
labelTextColors.push(invokeCallbackWithFallback(scoped, "labelTextColor", this, context));
});
this.labelColors = labelColors;
this.labelPointStyles = labelPointStyles;
this.labelTextColors = labelTextColors;
this.dataPoints = tooltipItems;
return tooltipItems;
}
update(changed, replay) {
const options = this.options.setContext(this.getContext());
const active = this._active;
let properties;
let tooltipItems = [];
if (!active.length) {
if (this.opacity !== 0) properties = { opacity: 0 };
} else {
const position = positioners[options.position].call(this, active, this._eventPosition);
tooltipItems = this._createItems(options);
this.title = this.getTitle(tooltipItems, options);
this.beforeBody = this.getBeforeBody(tooltipItems, options);
this.body = this.getBody(tooltipItems, options);
this.afterBody = this.getAfterBody(tooltipItems, options);
this.footer = this.getFooter(tooltipItems, options);
const size = this._size = getTooltipSize(this, options);
const positionAndSize = Object.assign({}, position, size);
const alignment = determineAlignment(this.chart, options, positionAndSize);
const backgroundPoint = getBackgroundPoint(options, positionAndSize, alignment, this.chart);
this.xAlign = alignment.xAlign;
this.yAlign = alignment.yAlign;
properties = {
opacity: 1,
x: backgroundPoint.x,
y: backgroundPoint.y,
width: size.width,
height: size.height,
caretX: position.x,
caretY: position.y
};
}
this._tooltipItems = tooltipItems;
this.$context = void 0;
if (properties) this._resolveAnimations().update(this, properties);
if (changed && options.external) options.external.call(this, {
chart: this.chart,
tooltip: this,
replay
});
}
drawCaret(tooltipPoint, ctx, size, options) {
const caretPosition = this.getCaretPosition(tooltipPoint, size, options);
ctx.lineTo(caretPosition.x1, caretPosition.y1);
ctx.lineTo(caretPosition.x2, caretPosition.y2);
ctx.lineTo(caretPosition.x3, caretPosition.y3);
}
getCaretPosition(tooltipPoint, size, options) {
const { xAlign, yAlign } = this;
const { caretSize, cornerRadius } = options;
const { topLeft, topRight, bottomLeft, bottomRight } = toTRBLCorners(cornerRadius);
const { x: ptX, y: ptY } = tooltipPoint;
const { width, height } = size;
let x1, x2, x3, y1, y2, y3;
if (yAlign === "center") {
y2 = ptY + height / 2;
if (xAlign === "left") {
x1 = ptX;
x2 = x1 - caretSize;
y1 = y2 + caretSize;
y3 = y2 - caretSize;
} else {
x1 = ptX + width;
x2 = x1 + caretSize;
y1 = y2 - caretSize;
y3 = y2 + caretSize;
}
x3 = x1;
} else {
if (xAlign === "left") x2 = ptX + Math.max(topLeft, bottomLeft) + caretSize;
else if (xAlign === "right") x2 = ptX + width - Math.max(topRight, bottomRight) - caretSize;
else x2 = this.caretX;
if (yAlign === "top") {
y1 = ptY;
y2 = y1 - caretSize;
x1 = x2 - caretSize;
x3 = x2 + caretSize;
} else {
y1 = ptY + height;
y2 = y1 + caretSize;
x1 = x2 + caretSize;
x3 = x2 - caretSize;
}
y3 = y1;
}
return {
x1,
x2,
x3,
y1,
y2,
y3
};
}
drawTitle(pt, ctx, options) {
const title = this.title;
const length = title.length;
let titleFont, titleSpacing, i;
if (length) {
const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width);
pt.x = getAlignedX(this, options.titleAlign, options);
ctx.textAlign = rtlHelper.textAlign(options.titleAlign);
ctx.textBaseline = "middle";
titleFont = toFont(options.titleFont);
titleSpacing = options.titleSpacing;
ctx.fillStyle = options.titleColor;
ctx.font = titleFont.string;
for (i = 0; i < length; ++i) {
ctx.fillText(title[i], rtlHelper.x(pt.x), pt.y + titleFont.lineHeight / 2);
pt.y += titleFont.lineHeight + titleSpacing;
if (i + 1 === length) pt.y += options.titleMarginBottom - titleSpacing;
}
}
}
_drawColorBox(ctx, pt, i, rtlHelper, options) {
const labelColor = this.labelColors[i];
const labelPointStyle = this.labelPointStyles[i];
const { boxHeight, boxWidth } = options;
const bodyFont = toFont(options.bodyFont);
const colorX = getAlignedX(this, "left", options);
const rtlColorX = rtlHelper.x(colorX);
const yOffSet = boxHeight < bodyFont.lineHeight ? (bodyFont.lineHeight - boxHeight) / 2 : 0;
const colorY = pt.y + yOffSet;
if (options.usePointStyle) {
const drawOptions = {
radius: Math.min(boxWidth, boxHeight) / 2,
pointStyle: labelPointStyle.pointStyle,
rotation: labelPointStyle.rotation,
borderWidth: 1
};
const centerX = rtlHelper.leftForLtr(rtlColorX, boxWidth) + boxWidth / 2;
const centerY = colorY + boxHeight / 2;
ctx.strokeStyle = options.multiKeyBackground;
ctx.fillStyle = options.multiKeyBackground;
drawPoint(ctx, drawOptions, centerX, centerY);
ctx.strokeStyle = labelColor.borderColor;
ctx.fillStyle = labelColor.backgroundColor;
drawPoint(ctx, drawOptions, centerX, centerY);
} else {
ctx.lineWidth = isObject(labelColor.borderWidth) ? Math.max(...Object.values(labelColor.borderWidth)) : labelColor.borderWidth || 1;
ctx.strokeStyle = labelColor.borderColor;
ctx.setLineDash(labelColor.borderDash || []);
ctx.lineDashOffset = labelColor.borderDashOffset || 0;
const outerX = rtlHelper.leftForLtr(rtlColorX, boxWidth);
const innerX = rtlHelper.leftForLtr(rtlHelper.xPlus(rtlColorX, 1), boxWidth - 2);
const borderRadius = toTRBLCorners(labelColor.borderRadius);
if (Object.values(borderRadius).some((v) => v !== 0)) {
ctx.beginPath();
ctx.fillStyle = options.multiKeyBackground;
addRoundedRectPath(ctx, {
x: outerX,
y: colorY,
w: boxWidth,
h: boxHeight,
radius: borderRadius
});
ctx.fill();
ctx.stroke();
ctx.fillStyle = labelColor.backgroundColor;
ctx.beginPath();
addRoundedRectPath(ctx, {
x: innerX,
y: colorY + 1,
w: boxWidth - 2,
h: boxHeight - 2,
radius: borderRadius
});
ctx.fill();
} else {
ctx.fillStyle = options.multiKeyBackground;
ctx.fillRect(outerX, colorY, boxWidth, boxHeight);
ctx.strokeRect(outerX, colorY, boxWidth, boxHeight);
ctx.fillStyle = labelColor.backgroundColor;
ctx.fillRect(innerX, colorY + 1, boxWidth - 2, boxHeight - 2);
}
}
ctx.fillStyle = this.labelTextColors[i];
}
drawBody(pt, ctx, options) {
const { body } = this;
const { bodySpacing, bodyAlign, displayColors, boxHeight, boxWidth, boxPadding } = options;
const bodyFont = toFont(options.bodyFont);
let bodyLineHeight = bodyFont.lineHeight;
let xLinePadding = 0;
const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width);
const fillLineOfText = function(line) {
ctx.fillText(line, rtlHelper.x(pt.x + xLinePadding), pt.y + bodyLineHeight / 2);
pt.y += bodyLineHeight + bodySpacing;
};
const bodyAlignForCalculation = rtlHelper.textAlign(bodyAlign);
let bodyItem, textColor, lines, i, j, ilen, jlen;
ctx.textAlign = bodyAlign;
ctx.textBaseline = "middle";
ctx.font = bodyFont.string;
pt.x = getAlignedX(this, bodyAlignForCalculation, options);
ctx.fillStyle = options.bodyColor;
each(this.beforeBody, fillLineOfText);
xLinePadding = displayColors && bodyAlignForCalculation !== "right" ? bodyAlign === "center" ? boxWidth / 2 + boxPadding : boxWidth + 2 + boxPadding : 0;
for (i = 0, ilen = body.length; i < ilen; ++i) {
bodyItem = body[i];
textColor = this.labelTextColors[i];
ctx.fillStyle = textColor;
each(bodyItem.before, fillLineOfText);
lines = bodyItem.lines;
if (displayColors && lines.length) {
this._drawColorBox(ctx, pt, i, rtlHelper, options);
bodyLineHeight = Math.max(bodyFont.lineHeight, boxHeight);
}
for (j = 0, jlen = lines.length; j < jlen; ++j) {
fillLineOfText(lines[j]);
bodyLineHeight = bodyFont.lineHeight;
}
each(bodyItem.after, fillLineOfText);
}
xLinePadding = 0;
bodyLineHeight = bodyFont.lineHeight;
each(this.afterBody, fillLineOfText);
pt.y -= bodySpacing;
}
drawFooter(pt, ctx, options) {
const footer = this.footer;
const length = footer.length;
let footerFont, i;
if (length) {
const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width);
pt.x = getAlignedX(this, options.footerAlign, options);
pt.y += options.footerMarginTop;
ctx.textAlign = rtlHelper.textAlign(options.footerAlign);
ctx.textBaseline = "middle";
footerFont = toFont(options.footerFont);
ctx.fillStyle = options.footerColor;
ctx.font = footerFont.string;
for (i = 0; i < length; ++i) {
ctx.fillText(footer[i], rtlHelper.x(pt.x), pt.y + footerFont.lineHeight / 2);
pt.y += footerFont.lineHeight + options.footerSpacing;
}
}
}
drawBackground(pt, ctx, tooltipSize, options) {
const { xAlign, yAlign } = this;
const { x, y } = pt;
const { width, height } = tooltipSize;
const { topLeft, topRight, bottomLeft, bottomRight } = toTRBLCorners(options.cornerRadius);
ctx.fillStyle = options.backgroundColor;
ctx.strokeStyle = options.borderColor;
ctx.lineWidth = options.borderWidth;
ctx.beginPath();
ctx.moveTo(x + topLeft, y);
if (yAlign === "top") this.drawCaret(pt, ctx, tooltipSize, options);
ctx.lineTo(x + width - topRight, y);
ctx.quadraticCurveTo(x + width, y, x + width, y + topRight);
if (yAlign === "center" && xAlign === "right") this.drawCaret(pt, ctx, tooltipSize, options);
ctx.lineTo(x + width, y + height - bottomRight);
ctx.quadraticCurveTo(x + width, y + height, x + width - bottomRight, y + height);
if (yAlign === "bottom") this.drawCaret(pt, ctx, tooltipSize, options);
ctx.lineTo(x + bottomLeft, y + height);
ctx.quadraticCurveTo(x, y + height, x, y + height - bottomLeft);
if (yAlign === "center" && xAlign === "left") this.drawCaret(pt, ctx, tooltipSize, options);
ctx.lineTo(x, y + topLeft);
ctx.quadraticCurveTo(x, y, x + topLeft, y);
ctx.closePath();
ctx.fill();
if (options.borderWidth > 0) ctx.stroke();
}
_updateAnimationTarget(options) {
const chart = this.chart;
const anims = this.$animations;
const animX = anims && anims.x;
const animY = anims && anims.y;
if (animX || animY) {
const position = positioners[options.position].call(this, this._active, this._eventPosition);
if (!position) return;
const size = this._size = getTooltipSize(this, options);
const positionAndSize = Object.assign({}, position, this._size);
const alignment = determineAlignment(chart, options, positionAndSize);
const point = getBackgroundPoint(options, positionAndSize, alignment, chart);
if (animX._to !== point.x || animY._to !== point.y) {
this.xAlign = alignment.xAlign;
this.yAlign = alignment.yAlign;
this.width = size.width;
this.height = size.height;
this.caretX = position.x;
this.caretY = position.y;
this._resolveAnimations().update(this, point);
}
}
}
_willRender() {
return !!this.opacity;
}
draw(ctx) {
const options = this.options.setContext(this.getContext());
let opacity = this.opacity;
if (!opacity) return;
this._updateAnimationTarget(options);
const tooltipSize = {
width: this.width,
height: this.height
};
const pt = {
x: this.x,
y: this.y
};
opacity = Math.abs(opacity) < .001 ? 0 : opacity;
const padding = toPadding(options.padding);
const hasTooltipContent = this.title.length || this.beforeBody.length || this.body.length || this.afterBody.length || this.footer.length;
if (options.enabled && hasTooltipContent) {
ctx.save();
ctx.globalAlpha = opacity;
this.drawBackground(pt, ctx, tooltipSize, options);
overrideTextDirection(ctx, options.textDirection);
pt.y += padding.top;
this.drawTitle(pt, ctx, options);
this.drawBody(pt, ctx, options);
this.drawFooter(pt, ctx, options);
restoreTextDirection(ctx, options.textDirection);
ctx.restore();
}
}
getActiveElements() {
return this._active || [];
}
setActiveElements(activeElements, eventPosition) {
const lastActive = this._active;
const active = activeElements.map(({ datasetIndex, index: index$1 }) => {
const meta = this.chart.getDatasetMeta(datasetIndex);
if (!meta) throw new Error("Cannot find a dataset at index " + datasetIndex);
return {
datasetIndex,
element: meta.data[index$1],
index: index$1
};
});
const changed = !_elementsEqual(lastActive, active);
const positionChanged = this._positionChanged(active, eventPosition);
if (changed || positionChanged) {
this._active = active;
this._eventPosition = eventPosition;
this._ignoreReplayEvents = true;
this.update(true);
}
}
handleEvent(e, replay, inChartArea = true) {
if (replay && this._ignoreReplayEvents) return false;
this._ignoreReplayEvents = false;
const options = this.options;
const lastActive = this._active || [];
const active = this._getActiveElements(e, lastActive, replay, inChartArea);
const positionChanged = this._positionChanged(active, e);
const changed = replay || !_elementsEqual(active, lastActive) || positionChanged;
if (changed) {
this._active = active;
if (options.enabled || options.external) {
this._eventPosition = {
x: e.x,
y: e.y
};
this.update(true, replay);
}
}
return changed;
}
_getActiveElements(e, lastActive, replay, inChartArea) {
const options = this.options;
if (e.type === "mouseout") return [];
if (!inChartArea) return lastActive;
const active = this.chart.getElementsAtEventForMode(e, options.mode, options, replay);
if (options.reverse) active.reverse();
return active;
}
_positionChanged(active, e) {
const { caretX, caretY, options } = this;
const position = positioners[options.position].call(this, active, e);
return position !== false && (caretX !== position.x || caretY !== position.y);
}
};
var plugin_tooltip = {
id: "tooltip",
_element: Tooltip,
positioners,
afterInit(chart, _args, options) {
if (options) chart.tooltip = new Tooltip({
chart,
options
});
},
beforeUpdate(chart, _args, options) {
if (chart.tooltip) chart.tooltip.initialize(options);
},
reset(chart, _args, options) {
if (chart.tooltip) chart.tooltip.initialize(options);
},
afterDraw(chart) {
const tooltip = chart.tooltip;
if (tooltip && tooltip._willRender()) {
const args = { tooltip };
if (chart.notifyPlugins("beforeTooltipDraw", {
...args,
cancelable: true
}) === false) return;
tooltip.draw(chart.ctx);
chart.notifyPlugins("afterTooltipDraw", args);
}
},
afterEvent(chart, args) {
if (chart.tooltip) {
const useFinalPosition = args.replay;
if (chart.tooltip.handleEvent(args.event, useFinalPosition, args.inChartArea)) args.changed = true;
}
},
defaults: {
enabled: true,
external: null,
position: "average",
backgroundColor: "rgba(0,0,0,0.8)",
titleColor: "#fff",
titleFont: { weight: "bold" },
titleSpacing: 2,
titleMarginBottom: 6,
titleAlign: "left",
bodyColor: "#fff",
bodySpacing: 2,
bodyFont: {},
bodyAlign: "left",
footerColor: "#fff",
footerSpacing: 2,
footerMarginTop: 6,
footerFont: { weight: "bold" },
footerAlign: "left",
padding: 6,
caretPadding: 2,
caretSize: 5,
cornerRadius: 6,
boxHeight: (ctx, opts) => opts.bodyFont.size,
boxWidth: (ctx, opts) => opts.bodyFont.size,
multiKeyBackground: "#fff",
displayColors: true,
boxPadding: 0,
borderColor: "rgba(0,0,0,0)",
borderWidth: 0,
animation: {
duration: 400,
easing: "easeOutQuart"
},
animations: {
numbers: {
type: "number",
properties: [
"x",
"y",
"width",
"height",
"caretX",
"caretY"
]
},
opacity: {
easing: "linear",
duration: 200
}
},
callbacks: defaultCallbacks
},
defaultRoutes: {
bodyFont: "font",
footerFont: "font",
titleFont: "font"
},
descriptors: {
_scriptable: (name) => name !== "filter" && name !== "itemSort" && name !== "external",
_indexable: false,
callbacks: {
_scriptable: false,
_indexable: false
},
animation: { _fallback: false },
animations: { _fallback: "animation" }
},
additionalOptionScopes: ["interaction"]
};
var addIfString = (labels, raw, index$1, addedLabels) => {
if (typeof raw === "string") {
index$1 = labels.push(raw) - 1;
addedLabels.unshift({
index: index$1,
label: raw
});
} else if (isNaN(raw)) index$1 = null;
return index$1;
};
function findOrAddLabel(labels, raw, index$1, addedLabels) {
const first = labels.indexOf(raw);
if (first === -1) return addIfString(labels, raw, index$1, addedLabels);
return first !== labels.lastIndexOf(raw) ? index$1 : first;
}
var validIndex = (index$1, max) => index$1 === null ? null : _limitValue(Math.round(index$1), 0, max);
function _getLabelForValue(value) {
const labels = this.getLabels();
if (value >= 0 && value < labels.length) return labels[value];
return value;
}
var CategoryScale = class extends Scale {
static id = "category";
static defaults = { ticks: { callback: _getLabelForValue } };
constructor(cfg) {
super(cfg);
this._startValue = void 0;
this._valueRange = 0;
this._addedLabels = [];
}
init(scaleOptions) {
const added = this._addedLabels;
if (added.length) {
const labels = this.getLabels();
for (const { index: index$1, label } of added) if (labels[index$1] === label) labels.splice(index$1, 1);
this._addedLabels = [];
}
super.init(scaleOptions);
}
parse(raw, index$1) {
if (isNullOrUndef(raw)) return null;
const labels = this.getLabels();
index$1 = isFinite(index$1) && labels[index$1] === raw ? index$1 : findOrAddLabel(labels, raw, valueOrDefault(index$1, raw), this._addedLabels);
return validIndex(index$1, labels.length - 1);
}
determineDataLimits() {
const { minDefined, maxDefined } = this.getUserBounds();
let { min, max } = this.getMinMax(true);
if (this.options.bounds === "ticks") {
if (!minDefined) min = 0;
if (!maxDefined) max = this.getLabels().length - 1;
}
this.min = min;
this.max = max;
}
buildTicks() {
const min = this.min;
const max = this.max;
const offset = this.options.offset;
const ticks = [];
let labels = this.getLabels();
labels = min === 0 && max === labels.length - 1 ? labels : labels.slice(min, max + 1);
this._valueRange = Math.max(labels.length - (offset ? 0 : 1), 1);
this._startValue = this.min - (offset ? .5 : 0);
for (let value = min; value <= max; value++) ticks.push({ value });
return ticks;
}
getLabelForValue(value) {
return _getLabelForValue.call(this, value);
}
configure() {
super.configure();
if (!this.isHorizontal()) this._reversePixels = !this._reversePixels;
}
getPixelForValue(value) {
if (typeof value !== "number") value = this.parse(value);
return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange);
}
getPixelForTick(index$1) {
const ticks = this.ticks;
if (index$1 < 0 || index$1 > ticks.length - 1) return null;
return this.getPixelForValue(ticks[index$1].value);
}
getValueForPixel(pixel) {
return Math.round(this._startValue + this.getDecimalForPixel(pixel) * this._valueRange);
}
getBasePixel() {
return this.bottom;
}
};
function generateTicks$1(generationOptions, dataRange) {
const ticks = [];
const MIN_SPACING = 1e-14;
const { bounds, step, min, max, precision, count, maxTicks, maxDigits, includeBounds } = generationOptions;
const unit = step || 1;
const maxSpaces = maxTicks - 1;
const { min: rmin, max: rmax } = dataRange;
const minDefined = !isNullOrUndef(min);
const maxDefined = !isNullOrUndef(max);
const countDefined = !isNullOrUndef(count);
const minSpacing = (rmax - rmin) / (maxDigits + 1);
let spacing = niceNum((rmax - rmin) / maxSpaces / unit) * unit;
let factor, niceMin, niceMax, numSpaces;
if (spacing < MIN_SPACING && !minDefined && !maxDefined) return [{ value: rmin }, { value: rmax }];
numSpaces = Math.ceil(rmax / spacing) - Math.floor(rmin / spacing);
if (numSpaces > maxSpaces) spacing = niceNum(numSpaces * spacing / maxSpaces / unit) * unit;
if (!isNullOrUndef(precision)) {
factor = Math.pow(10, precision);
spacing = Math.ceil(spacing * factor) / factor;
}
if (bounds === "ticks") {
niceMin = Math.floor(rmin / spacing) * spacing;
niceMax = Math.ceil(rmax / spacing) * spacing;
} else {
niceMin = rmin;
niceMax = rmax;
}
if (minDefined && maxDefined && step && almostWhole((max - min) / step, spacing / 1e3)) {
numSpaces = Math.round(Math.min((max - min) / spacing, maxTicks));
spacing = (max - min) / numSpaces;
niceMin = min;
niceMax = max;
} else if (countDefined) {
niceMin = minDefined ? min : niceMin;
niceMax = maxDefined ? max : niceMax;
numSpaces = count - 1;
spacing = (niceMax - niceMin) / numSpaces;
} else {
numSpaces = (niceMax - niceMin) / spacing;
if (almostEquals(numSpaces, Math.round(numSpaces), spacing / 1e3)) numSpaces = Math.round(numSpaces);
else numSpaces = Math.ceil(numSpaces);
}
const decimalPlaces = Math.max(_decimalPlaces(spacing), _decimalPlaces(niceMin));
factor = Math.pow(10, isNullOrUndef(precision) ? decimalPlaces : precision);
niceMin = Math.round(niceMin * factor) / factor;
niceMax = Math.round(niceMax * factor) / factor;
let j = 0;
if (minDefined) {
if (includeBounds && niceMin !== min) {
ticks.push({ value: min });
if (niceMin < min) j++;
if (almostEquals(Math.round((niceMin + j * spacing) * factor) / factor, min, relativeLabelSize(min, minSpacing, generationOptions))) j++;
} else if (niceMin < min) j++;
}
for (; j < numSpaces; ++j) {
const tickValue = Math.round((niceMin + j * spacing) * factor) / factor;
if (maxDefined && tickValue > max) break;
ticks.push({ value: tickValue });
}
if (maxDefined && includeBounds && niceMax !== max) if (ticks.length && almostEquals(ticks[ticks.length - 1].value, max, relativeLabelSize(max, minSpacing, generationOptions))) ticks[ticks.length - 1].value = max;
else ticks.push({ value: max });
else if (!maxDefined || niceMax === max) ticks.push({ value: niceMax });
return ticks;
}
function relativeLabelSize(value, minSpacing, { horizontal, minRotation }) {
const rad = toRadians(minRotation);
const ratio = (horizontal ? Math.sin(rad) : Math.cos(rad)) || .001;
const length = .75 * minSpacing * ("" + value).length;
return Math.min(minSpacing / ratio, length);
}
var LinearScaleBase = class extends Scale {
constructor(cfg) {
super(cfg);
this.start = void 0;
this.end = void 0;
this._startValue = void 0;
this._endValue = void 0;
this._valueRange = 0;
}
parse(raw, index$1) {
if (isNullOrUndef(raw)) return null;
if ((typeof raw === "number" || raw instanceof Number) && !isFinite(+raw)) return null;
return +raw;
}
handleTickRangeOptions() {
const { beginAtZero } = this.options;
const { minDefined, maxDefined } = this.getUserBounds();
let { min, max } = this;
const setMin = (v) => min = minDefined ? min : v;
const setMax = (v) => max = maxDefined ? max : v;
if (beginAtZero) {
const minSign = sign(min);
const maxSign = sign(max);
if (minSign < 0 && maxSign < 0) setMax(0);
else if (minSign > 0 && maxSign > 0) setMin(0);
}
if (min === max) {
let offset = max === 0 ? 1 : Math.abs(max * .05);
setMax(max + offset);
if (!beginAtZero) setMin(min - offset);
}
this.min = min;
this.max = max;
}
getTickLimit() {
let { maxTicksLimit, stepSize } = this.options.ticks;
let maxTicks;
if (stepSize) {
maxTicks = Math.ceil(this.max / stepSize) - Math.floor(this.min / stepSize) + 1;
if (maxTicks > 1e3) {
console.warn(`scales.${this.id}.ticks.stepSize: ${stepSize} would result generating up to ${maxTicks} ticks. Limiting to 1000.`);
maxTicks = 1e3;
}
} else {
maxTicks = this.computeTickLimit();
maxTicksLimit = maxTicksLimit || 11;
}
if (maxTicksLimit) maxTicks = Math.min(maxTicksLimit, maxTicks);
return maxTicks;
}
computeTickLimit() {
return Number.POSITIVE_INFINITY;
}
buildTicks() {
const opts = this.options;
const tickOpts = opts.ticks;
let maxTicks = this.getTickLimit();
maxTicks = Math.max(2, maxTicks);
const ticks = generateTicks$1({
maxTicks,
bounds: opts.bounds,
min: opts.min,
max: opts.max,
precision: tickOpts.precision,
step: tickOpts.stepSize,
count: tickOpts.count,
maxDigits: this._maxDigits(),
horizontal: this.isHorizontal(),
minRotation: tickOpts.minRotation || 0,
includeBounds: tickOpts.includeBounds !== false
}, this._range || this);
if (opts.bounds === "ticks") _setMinAndMaxByKey(ticks, this, "value");
if (opts.reverse) {
ticks.reverse();
this.start = this.max;
this.end = this.min;
} else {
this.start = this.min;
this.end = this.max;
}
return ticks;
}
configure() {
const ticks = this.ticks;
let start = this.min;
let end = this.max;
super.configure();
if (this.options.offset && ticks.length) {
const offset = (end - start) / Math.max(ticks.length - 1, 1) / 2;
start -= offset;
end += offset;
}
this._startValue = start;
this._endValue = end;
this._valueRange = end - start;
}
getLabelForValue(value) {
return formatNumber(value, this.chart.options.locale, this.options.ticks.format);
}
};
var LinearScale = class extends LinearScaleBase {
static id = "linear";
static defaults = { ticks: { callback: Ticks.formatters.numeric } };
determineDataLimits() {
const { min, max } = this.getMinMax(true);
this.min = isNumberFinite(min) ? min : 0;
this.max = isNumberFinite(max) ? max : 1;
this.handleTickRangeOptions();
}
computeTickLimit() {
const horizontal = this.isHorizontal();
const length = horizontal ? this.width : this.height;
const minRotation = toRadians(this.options.ticks.minRotation);
const ratio = (horizontal ? Math.sin(minRotation) : Math.cos(minRotation)) || .001;
const tickFont = this._resolveTickFontOptions(0);
return Math.ceil(length / Math.min(40, tickFont.lineHeight / ratio));
}
getPixelForValue(value) {
return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange);
}
getValueForPixel(pixel) {
return this._startValue + this.getDecimalForPixel(pixel) * this._valueRange;
}
};
var log10Floor = (v) => Math.floor(log10(v));
var changeExponent = (v, m) => Math.pow(10, log10Floor(v) + m);
function isMajor(tickVal) {
return tickVal / Math.pow(10, log10Floor(tickVal)) === 1;
}
function steps(min, max, rangeExp) {
const rangeStep = Math.pow(10, rangeExp);
const start = Math.floor(min / rangeStep);
return Math.ceil(max / rangeStep) - start;
}
function startExp(min, max) {
let rangeExp = log10Floor(max - min);
while (steps(min, max, rangeExp) > 10) rangeExp++;
while (steps(min, max, rangeExp) < 10) rangeExp--;
return Math.min(rangeExp, log10Floor(min));
}
function generateTicks(generationOptions, { min, max }) {
min = finiteOrDefault(generationOptions.min, min);
const ticks = [];
const minExp = log10Floor(min);
let exp = startExp(min, max);
let precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1;
const stepSize = Math.pow(10, exp);
const base = minExp > exp ? Math.pow(10, minExp) : 0;
const start = Math.round((min - base) * precision) / precision;
const offset = Math.floor((min - base) / stepSize / 10) * stepSize * 10;
let significand = Math.floor((start - offset) / Math.pow(10, exp));
let value = finiteOrDefault(generationOptions.min, Math.round((base + offset + significand * Math.pow(10, exp)) * precision) / precision);
while (value < max) {
ticks.push({
value,
major: isMajor(value),
significand
});
if (significand >= 10) significand = significand < 15 ? 15 : 20;
else significand++;
if (significand >= 20) {
exp++;
significand = 2;
precision = exp >= 0 ? 1 : precision;
}
value = Math.round((base + offset + significand * Math.pow(10, exp)) * precision) / precision;
}
const lastTick = finiteOrDefault(generationOptions.max, value);
ticks.push({
value: lastTick,
major: isMajor(lastTick),
significand
});
return ticks;
}
(class extends Scale {
static id = "logarithmic";
static defaults = { ticks: {
callback: Ticks.formatters.logarithmic,
major: { enabled: true }
} };
constructor(cfg) {
super(cfg);
this.start = void 0;
this.end = void 0;
this._startValue = void 0;
this._valueRange = 0;
}
parse(raw, index$1) {
const value = LinearScaleBase.prototype.parse.apply(this, [raw, index$1]);
if (value === 0) {
this._zero = true;
return;
}
return isNumberFinite(value) && value > 0 ? value : null;
}
determineDataLimits() {
const { min, max } = this.getMinMax(true);
this.min = isNumberFinite(min) ? Math.max(0, min) : null;
this.max = isNumberFinite(max) ? Math.max(0, max) : null;
if (this.options.beginAtZero) this._zero = true;
if (this._zero && this.min !== this._suggestedMin && !isNumberFinite(this._userMin)) this.min = min === changeExponent(this.min, 0) ? changeExponent(this.min, -1) : changeExponent(this.min, 0);
this.handleTickRangeOptions();
}
handleTickRangeOptions() {
const { minDefined, maxDefined } = this.getUserBounds();
let min = this.min;
let max = this.max;
const setMin = (v) => min = minDefined ? min : v;
const setMax = (v) => max = maxDefined ? max : v;
if (min === max) if (min <= 0) {
setMin(1);
setMax(10);
} else {
setMin(changeExponent(min, -1));
setMax(changeExponent(max, 1));
}
if (min <= 0) setMin(changeExponent(max, -1));
if (max <= 0) setMax(changeExponent(min, 1));
this.min = min;
this.max = max;
}
buildTicks() {
const opts = this.options;
const ticks = generateTicks({
min: this._userMin,
max: this._userMax
}, this);
if (opts.bounds === "ticks") _setMinAndMaxByKey(ticks, this, "value");
if (opts.reverse) {
ticks.reverse();
this.start = this.max;
this.end = this.min;
} else {
this.start = this.min;
this.end = this.max;
}
return ticks;
}
getLabelForValue(value) {
return value === void 0 ? "0" : formatNumber(value, this.chart.options.locale, this.options.ticks.format);
}
configure() {
const start = this.min;
super.configure();
this._startValue = log10(start);
this._valueRange = log10(this.max) - log10(start);
}
getPixelForValue(value) {
if (value === void 0 || value === 0) value = this.min;
if (value === null || isNaN(value)) return NaN;
return this.getPixelForDecimal(value === this.min ? 0 : (log10(value) - this._startValue) / this._valueRange);
}
getValueForPixel(pixel) {
const decimal = this.getDecimalForPixel(pixel);
return Math.pow(10, this._startValue + decimal * this._valueRange);
}
});
function getTickBackdropHeight(opts) {
const tickOpts = opts.ticks;
if (tickOpts.display && opts.display) {
const padding = toPadding(tickOpts.backdropPadding);
return valueOrDefault(tickOpts.font && tickOpts.font.size, defaults.font.size) + padding.height;
}
return 0;
}
function measureLabelSize(ctx, font, label) {
label = isArray(label) ? label : [label];
return {
w: _longestText(ctx, font.string, label),
h: label.length * font.lineHeight
};
}
function determineLimits(angle, pos, size, min, max) {
if (angle === min || angle === max) return {
start: pos - size / 2,
end: pos + size / 2
};
else if (angle < min || angle > max) return {
start: pos - size,
end: pos
};
return {
start: pos,
end: pos + size
};
}
function fitWithPointLabels(scale) {
const orig = {
l: scale.left + scale._padding.left,
r: scale.right - scale._padding.right,
t: scale.top + scale._padding.top,
b: scale.bottom - scale._padding.bottom
};
const limits = Object.assign({}, orig);
const labelSizes = [];
const padding = [];
const valueCount = scale._pointLabels.length;
const pointLabelOpts = scale.options.pointLabels;
const additionalAngle = pointLabelOpts.centerPointLabels ? PI / valueCount : 0;
for (let i = 0; i < valueCount; i++) {
const opts = pointLabelOpts.setContext(scale.getPointLabelContext(i));
padding[i] = opts.padding;
const pointPosition = scale.getPointPosition(i, scale.drawingArea + padding[i], additionalAngle);
const plFont = toFont(opts.font);
const textSize = measureLabelSize(scale.ctx, plFont, scale._pointLabels[i]);
labelSizes[i] = textSize;
const angleRadians = _normalizeAngle(scale.getIndexAngle(i) + additionalAngle);
const angle = Math.round(toDegrees(angleRadians));
updateLimits(limits, orig, angleRadians, determineLimits(angle, pointPosition.x, textSize.w, 0, 180), determineLimits(angle, pointPosition.y, textSize.h, 90, 270));
}
scale.setCenterPoint(orig.l - limits.l, limits.r - orig.r, orig.t - limits.t, limits.b - orig.b);
scale._pointLabelItems = buildPointLabelItems(scale, labelSizes, padding);
}
function updateLimits(limits, orig, angle, hLimits, vLimits) {
const sin = Math.abs(Math.sin(angle));
const cos = Math.abs(Math.cos(angle));
let x = 0;
let y = 0;
if (hLimits.start < orig.l) {
x = (orig.l - hLimits.start) / sin;
limits.l = Math.min(limits.l, orig.l - x);
} else if (hLimits.end > orig.r) {
x = (hLimits.end - orig.r) / sin;
limits.r = Math.max(limits.r, orig.r + x);
}
if (vLimits.start < orig.t) {
y = (orig.t - vLimits.start) / cos;
limits.t = Math.min(limits.t, orig.t - y);
} else if (vLimits.end > orig.b) {
y = (vLimits.end - orig.b) / cos;
limits.b = Math.max(limits.b, orig.b + y);
}
}
function createPointLabelItem(scale, index$1, itemOpts) {
const outerDistance = scale.drawingArea;
const { extra, additionalAngle, padding, size } = itemOpts;
const pointLabelPosition = scale.getPointPosition(index$1, outerDistance + extra + padding, additionalAngle);
const angle = Math.round(toDegrees(_normalizeAngle(pointLabelPosition.angle + HALF_PI)));
const y = yForAngle(pointLabelPosition.y, size.h, angle);
const textAlign = getTextAlignForAngle(angle);
const left = leftForTextAlign(pointLabelPosition.x, size.w, textAlign);
return {
visible: true,
x: pointLabelPosition.x,
y,
textAlign,
left,
top: y,
right: left + size.w,
bottom: y + size.h
};
}
function isNotOverlapped(item, area) {
if (!area) return true;
const { left, top, right, bottom } = item;
return !(_isPointInArea({
x: left,
y: top
}, area) || _isPointInArea({
x: left,
y: bottom
}, area) || _isPointInArea({
x: right,
y: top
}, area) || _isPointInArea({
x: right,
y: bottom
}, area));
}
function buildPointLabelItems(scale, labelSizes, padding) {
const items = [];
const valueCount = scale._pointLabels.length;
const opts = scale.options;
const { centerPointLabels, display } = opts.pointLabels;
const itemOpts = {
extra: getTickBackdropHeight(opts) / 2,
additionalAngle: centerPointLabels ? PI / valueCount : 0
};
let area;
for (let i = 0; i < valueCount; i++) {
itemOpts.padding = padding[i];
itemOpts.size = labelSizes[i];
const item = createPointLabelItem(scale, i, itemOpts);
items.push(item);
if (display === "auto") {
item.visible = isNotOverlapped(item, area);
if (item.visible) area = item;
}
}
return items;
}
function getTextAlignForAngle(angle) {
if (angle === 0 || angle === 180) return "center";
else if (angle < 180) return "left";
return "right";
}
function leftForTextAlign(x, w, align) {
if (align === "right") x -= w;
else if (align === "center") x -= w / 2;
return x;
}
function yForAngle(y, h, angle) {
if (angle === 90 || angle === 270) y -= h / 2;
else if (angle > 270 || angle < 90) y -= h;
return y;
}
function drawPointLabelBox(ctx, opts, item) {
const { left, top, right, bottom } = item;
const { backdropColor } = opts;
if (!isNullOrUndef(backdropColor)) {
const borderRadius = toTRBLCorners(opts.borderRadius);
const padding = toPadding(opts.backdropPadding);
ctx.fillStyle = backdropColor;
const backdropLeft = left - padding.left;
const backdropTop = top - padding.top;
const backdropWidth = right - left + padding.width;
const backdropHeight = bottom - top + padding.height;
if (Object.values(borderRadius).some((v) => v !== 0)) {
ctx.beginPath();
addRoundedRectPath(ctx, {
x: backdropLeft,
y: backdropTop,
w: backdropWidth,
h: backdropHeight,
radius: borderRadius
});
ctx.fill();
} else ctx.fillRect(backdropLeft, backdropTop, backdropWidth, backdropHeight);
}
}
function drawPointLabels(scale, labelCount) {
const { ctx, options: { pointLabels } } = scale;
for (let i = labelCount - 1; i >= 0; i--) {
const item = scale._pointLabelItems[i];
if (!item.visible) continue;
const optsAtIndex = pointLabels.setContext(scale.getPointLabelContext(i));
drawPointLabelBox(ctx, optsAtIndex, item);
const plFont = toFont(optsAtIndex.font);
const { x, y, textAlign } = item;
renderText(ctx, scale._pointLabels[i], x, y + plFont.lineHeight / 2, plFont, {
color: optsAtIndex.color,
textAlign,
textBaseline: "middle"
});
}
}
function pathRadiusLine(scale, radius, circular, labelCount) {
const { ctx } = scale;
if (circular) ctx.arc(scale.xCenter, scale.yCenter, radius, 0, TAU);
else {
let pointPosition = scale.getPointPosition(0, radius);
ctx.moveTo(pointPosition.x, pointPosition.y);
for (let i = 1; i < labelCount; i++) {
pointPosition = scale.getPointPosition(i, radius);
ctx.lineTo(pointPosition.x, pointPosition.y);
}
}
}
function drawRadiusLine(scale, gridLineOpts, radius, labelCount, borderOpts) {
const ctx = scale.ctx;
const circular = gridLineOpts.circular;
const { color: color$1, lineWidth } = gridLineOpts;
if (!circular && !labelCount || !color$1 || !lineWidth || radius < 0) return;
ctx.save();
ctx.strokeStyle = color$1;
ctx.lineWidth = lineWidth;
ctx.setLineDash(borderOpts.dash);
ctx.lineDashOffset = borderOpts.dashOffset;
ctx.beginPath();
pathRadiusLine(scale, radius, circular, labelCount);
ctx.closePath();
ctx.stroke();
ctx.restore();
}
function createPointLabelContext(parent, index$1, label) {
return createContext(parent, {
label,
index: index$1,
type: "pointLabel"
});
}
(class extends LinearScaleBase {
static id = "radialLinear";
static defaults = {
display: true,
animate: true,
position: "chartArea",
angleLines: {
display: true,
lineWidth: 1,
borderDash: [],
borderDashOffset: 0
},
grid: { circular: false },
startAngle: 0,
ticks: {
showLabelBackdrop: true,
callback: Ticks.formatters.numeric
},
pointLabels: {
backdropColor: void 0,
backdropPadding: 2,
display: true,
font: { size: 10 },
callback(label) {
return label;
},
padding: 5,
centerPointLabels: false
}
};
static defaultRoutes = {
"angleLines.color": "borderColor",
"pointLabels.color": "color",
"ticks.color": "color"
};
static descriptors = { angleLines: { _fallback: "grid" } };
constructor(cfg) {
super(cfg);
this.xCenter = void 0;
this.yCenter = void 0;
this.drawingArea = void 0;
this._pointLabels = [];
this._pointLabelItems = [];
}
setDimensions() {
const padding = this._padding = toPadding(getTickBackdropHeight(this.options) / 2);
const w = this.width = this.maxWidth - padding.width;
const h = this.height = this.maxHeight - padding.height;
this.xCenter = Math.floor(this.left + w / 2 + padding.left);
this.yCenter = Math.floor(this.top + h / 2 + padding.top);
this.drawingArea = Math.floor(Math.min(w, h) / 2);
}
determineDataLimits() {
const { min, max } = this.getMinMax(false);
this.min = isNumberFinite(min) && !isNaN(min) ? min : 0;
this.max = isNumberFinite(max) && !isNaN(max) ? max : 0;
this.handleTickRangeOptions();
}
computeTickLimit() {
return Math.ceil(this.drawingArea / getTickBackdropHeight(this.options));
}
generateTickLabels(ticks) {
LinearScaleBase.prototype.generateTickLabels.call(this, ticks);
this._pointLabels = this.getLabels().map((value, index$1) => {
const label = callback(this.options.pointLabels.callback, [value, index$1], this);
return label || label === 0 ? label : "";
}).filter((v, i) => this.chart.getDataVisibility(i));
}
fit() {
const opts = this.options;
if (opts.display && opts.pointLabels.display) fitWithPointLabels(this);
else this.setCenterPoint(0, 0, 0, 0);
}
setCenterPoint(leftMovement, rightMovement, topMovement, bottomMovement) {
this.xCenter += Math.floor((leftMovement - rightMovement) / 2);
this.yCenter += Math.floor((topMovement - bottomMovement) / 2);
this.drawingArea -= Math.min(this.drawingArea / 2, Math.max(leftMovement, rightMovement, topMovement, bottomMovement));
}
getIndexAngle(index$1) {
const angleMultiplier = TAU / (this._pointLabels.length || 1);
const startAngle = this.options.startAngle || 0;
return _normalizeAngle(index$1 * angleMultiplier + toRadians(startAngle));
}
getDistanceFromCenterForValue(value) {
if (isNullOrUndef(value)) return NaN;
const scalingFactor = this.drawingArea / (this.max - this.min);
if (this.options.reverse) return (this.max - value) * scalingFactor;
return (value - this.min) * scalingFactor;
}
getValueForDistanceFromCenter(distance) {
if (isNullOrUndef(distance)) return NaN;
const scaledDistance = distance / (this.drawingArea / (this.max - this.min));
return this.options.reverse ? this.max - scaledDistance : this.min + scaledDistance;
}
getPointLabelContext(index$1) {
const pointLabels = this._pointLabels || [];
if (index$1 >= 0 && index$1 < pointLabels.length) {
const pointLabel = pointLabels[index$1];
return createPointLabelContext(this.getContext(), index$1, pointLabel);
}
}
getPointPosition(index$1, distanceFromCenter, additionalAngle = 0) {
const angle = this.getIndexAngle(index$1) - HALF_PI + additionalAngle;
return {
x: Math.cos(angle) * distanceFromCenter + this.xCenter,
y: Math.sin(angle) * distanceFromCenter + this.yCenter,
angle
};
}
getPointPositionForValue(index$1, value) {
return this.getPointPosition(index$1, this.getDistanceFromCenterForValue(value));
}
getBasePosition(index$1) {
return this.getPointPositionForValue(index$1 || 0, this.getBaseValue());
}
getPointLabelPosition(index$1) {
const { left, top, right, bottom } = this._pointLabelItems[index$1];
return {
left,
top,
right,
bottom
};
}
drawBackground() {
const { backgroundColor, grid: { circular } } = this.options;
if (backgroundColor) {
const ctx = this.ctx;
ctx.save();
ctx.beginPath();
pathRadiusLine(this, this.getDistanceFromCenterForValue(this._endValue), circular, this._pointLabels.length);
ctx.closePath();
ctx.fillStyle = backgroundColor;
ctx.fill();
ctx.restore();
}
}
drawGrid() {
const ctx = this.ctx;
const opts = this.options;
const { angleLines, grid, border } = opts;
const labelCount = this._pointLabels.length;
let i, offset, position;
if (opts.pointLabels.display) drawPointLabels(this, labelCount);
if (grid.display) this.ticks.forEach((tick, index$1) => {
if (index$1 !== 0) {
offset = this.getDistanceFromCenterForValue(tick.value);
const context = this.getContext(index$1);
const optsAtIndex = grid.setContext(context);
const optsAtIndexBorder = border.setContext(context);
drawRadiusLine(this, optsAtIndex, offset, labelCount, optsAtIndexBorder);
}
});
if (angleLines.display) {
ctx.save();
for (i = labelCount - 1; i >= 0; i--) {
const optsAtIndex = angleLines.setContext(this.getPointLabelContext(i));
const { color: color$1, lineWidth } = optsAtIndex;
if (!lineWidth || !color$1) continue;
ctx.lineWidth = lineWidth;
ctx.strokeStyle = color$1;
ctx.setLineDash(optsAtIndex.borderDash);
ctx.lineDashOffset = optsAtIndex.borderDashOffset;
offset = this.getDistanceFromCenterForValue(opts.ticks.reverse ? this.min : this.max);
position = this.getPointPosition(i, offset);
ctx.beginPath();
ctx.moveTo(this.xCenter, this.yCenter);
ctx.lineTo(position.x, position.y);
ctx.stroke();
}
ctx.restore();
}
}
drawBorder() {}
drawLabels() {
const ctx = this.ctx;
const opts = this.options;
const tickOpts = opts.ticks;
if (!tickOpts.display) return;
const startAngle = this.getIndexAngle(0);
let offset, width;
ctx.save();
ctx.translate(this.xCenter, this.yCenter);
ctx.rotate(startAngle);
ctx.textAlign = "center";
ctx.textBaseline = "middle";
this.ticks.forEach((tick, index$1) => {
if (index$1 === 0 && !opts.reverse) return;
const optsAtIndex = tickOpts.setContext(this.getContext(index$1));
const tickFont = toFont(optsAtIndex.font);
offset = this.getDistanceFromCenterForValue(this.ticks[index$1].value);
if (optsAtIndex.showLabelBackdrop) {
ctx.font = tickFont.string;
width = ctx.measureText(tick.label).width;
ctx.fillStyle = optsAtIndex.backdropColor;
const padding = toPadding(optsAtIndex.backdropPadding);
ctx.fillRect(-width / 2 - padding.left, -offset - tickFont.size / 2 - padding.top, width + padding.width, tickFont.size + padding.height);
}
renderText(ctx, tick.label, 0, -offset, tickFont, {
color: optsAtIndex.color,
strokeColor: optsAtIndex.textStrokeColor,
strokeWidth: optsAtIndex.textStrokeWidth
});
});
ctx.restore();
}
drawTitle() {}
});
var INTERVALS = {
millisecond: {
common: true,
size: 1,
steps: 1e3
},
second: {
common: true,
size: 1e3,
steps: 60
},
minute: {
common: true,
size: 6e4,
steps: 60
},
hour: {
common: true,
size: 36e5,
steps: 24
},
day: {
common: true,
size: 864e5,
steps: 30
},
week: {
common: false,
size: 6048e5,
steps: 4
},
month: {
common: true,
size: 2628e6,
steps: 12
},
quarter: {
common: false,
size: 7884e6,
steps: 4
},
year: {
common: true,
size: 3154e7
}
};
var UNITS = /* @__PURE__ */ Object.keys(INTERVALS);
function sorter(a, b) {
return a - b;
}
function parse(scale, input) {
if (isNullOrUndef(input)) return null;
const adapter = scale._adapter;
const { parser, round: round$1, isoWeekday } = scale._parseOpts;
let value = input;
if (typeof parser === "function") value = parser(value);
if (!isNumberFinite(value)) value = typeof parser === "string" ? adapter.parse(value, parser) : adapter.parse(value);
if (value === null) return null;
if (round$1) value = round$1 === "week" && (isNumber(isoWeekday) || isoWeekday === true) ? adapter.startOf(value, "isoWeek", isoWeekday) : adapter.startOf(value, round$1);
return +value;
}
function determineUnitForAutoTicks(minUnit, min, max, capacity) {
const ilen = UNITS.length;
for (let i = UNITS.indexOf(minUnit); i < ilen - 1; ++i) {
const interval = INTERVALS[UNITS[i]];
const factor = interval.steps ? interval.steps : Number.MAX_SAFE_INTEGER;
if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) return UNITS[i];
}
return UNITS[ilen - 1];
}
function determineUnitForFormatting(scale, numTicks, minUnit, min, max) {
for (let i = UNITS.length - 1; i >= UNITS.indexOf(minUnit); i--) {
const unit = UNITS[i];
if (INTERVALS[unit].common && scale._adapter.diff(max, min, unit) >= numTicks - 1) return unit;
}
return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0];
}
function determineMajorUnit(unit) {
for (let i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i) if (INTERVALS[UNITS[i]].common) return UNITS[i];
}
function addTick(ticks, time, timestamps) {
if (!timestamps) ticks[time] = true;
else if (timestamps.length) {
const { lo, hi } = _lookup(timestamps, time);
const timestamp = timestamps[lo] >= time ? timestamps[lo] : timestamps[hi];
ticks[timestamp] = true;
}
}
function setMajorTicks(scale, ticks, map$2, majorUnit) {
const adapter = scale._adapter;
const first = +adapter.startOf(ticks[0].value, majorUnit);
const last = ticks[ticks.length - 1].value;
let major, index$1;
for (major = first; major <= last; major = +adapter.add(major, 1, majorUnit)) {
index$1 = map$2[major];
if (index$1 >= 0) ticks[index$1].major = true;
}
return ticks;
}
function ticksFromTimestamps(scale, values, majorUnit) {
const ticks = [];
const map$2 = {};
const ilen = values.length;
let i, value;
for (i = 0; i < ilen; ++i) {
value = values[i];
map$2[value] = i;
ticks.push({
value,
major: false
});
}
return ilen === 0 || !majorUnit ? ticks : setMajorTicks(scale, ticks, map$2, majorUnit);
}
var TimeScale = class extends Scale {
static id = "time";
static defaults = {
bounds: "data",
adapters: {},
time: {
parser: false,
unit: false,
round: false,
isoWeekday: false,
minUnit: "millisecond",
displayFormats: {}
},
ticks: {
source: "auto",
callback: false,
major: { enabled: false }
}
};
constructor(props) {
super(props);
this._cache = {
data: [],
labels: [],
all: []
};
this._unit = "day";
this._majorUnit = void 0;
this._offsets = {};
this._normalized = false;
this._parseOpts = void 0;
}
init(scaleOpts, opts = {}) {
const time = scaleOpts.time || (scaleOpts.time = {});
const adapter = this._adapter = new adapters._date(scaleOpts.adapters.date);
adapter.init(opts);
mergeIf(time.displayFormats, adapter.formats());
this._parseOpts = {
parser: time.parser,
round: time.round,
isoWeekday: time.isoWeekday
};
super.init(scaleOpts);
this._normalized = opts.normalized;
}
parse(raw, index$1) {
if (raw === void 0) return null;
return parse(this, raw);
}
beforeLayout() {
super.beforeLayout();
this._cache = {
data: [],
labels: [],
all: []
};
}
determineDataLimits() {
const options = this.options;
const adapter = this._adapter;
const unit = options.time.unit || "day";
let { min, max, minDefined, maxDefined } = this.getUserBounds();
function _applyBounds(bounds) {
if (!minDefined && !isNaN(bounds.min)) min = Math.min(min, bounds.min);
if (!maxDefined && !isNaN(bounds.max)) max = Math.max(max, bounds.max);
}
if (!minDefined || !maxDefined) {
_applyBounds(this._getLabelBounds());
if (options.bounds !== "ticks" || options.ticks.source !== "labels") _applyBounds(this.getMinMax(false));
}
min = isNumberFinite(min) && !isNaN(min) ? min : +adapter.startOf(Date.now(), unit);
max = isNumberFinite(max) && !isNaN(max) ? max : +adapter.endOf(Date.now(), unit) + 1;
this.min = Math.min(min, max - 1);
this.max = Math.max(min + 1, max);
}
_getLabelBounds() {
const arr = this.getLabelTimestamps();
let min = Number.POSITIVE_INFINITY;
let max = Number.NEGATIVE_INFINITY;
if (arr.length) {
min = arr[0];
max = arr[arr.length - 1];
}
return {
min,
max
};
}
buildTicks() {
const options = this.options;
const timeOpts = options.time;
const tickOpts = options.ticks;
const timestamps = tickOpts.source === "labels" ? this.getLabelTimestamps() : this._generate();
if (options.bounds === "ticks" && timestamps.length) {
this.min = this._userMin || timestamps[0];
this.max = this._userMax || timestamps[timestamps.length - 1];
}
const min = this.min;
const max = this.max;
const ticks = _filterBetween(timestamps, min, max);
this._unit = timeOpts.unit || (tickOpts.autoSkip ? determineUnitForAutoTicks(timeOpts.minUnit, this.min, this.max, this._getLabelCapacity(min)) : determineUnitForFormatting(this, ticks.length, timeOpts.minUnit, this.min, this.max));
this._majorUnit = !tickOpts.major.enabled || this._unit === "year" ? void 0 : determineMajorUnit(this._unit);
this.initOffsets(timestamps);
if (options.reverse) ticks.reverse();
return ticksFromTimestamps(this, ticks, this._majorUnit);
}
afterAutoSkip() {
if (this.options.offsetAfterAutoskip) this.initOffsets(this.ticks.map((tick) => +tick.value));
}
initOffsets(timestamps = []) {
let start = 0;
let end = 0;
let first, last;
if (this.options.offset && timestamps.length) {
first = this.getDecimalForValue(timestamps[0]);
if (timestamps.length === 1) start = 1 - first;
else start = (this.getDecimalForValue(timestamps[1]) - first) / 2;
last = this.getDecimalForValue(timestamps[timestamps.length - 1]);
if (timestamps.length === 1) end = last;
else end = (last - this.getDecimalForValue(timestamps[timestamps.length - 2])) / 2;
}
const limit = timestamps.length < 3 ? .5 : .25;
start = _limitValue(start, 0, limit);
end = _limitValue(end, 0, limit);
this._offsets = {
start,
end,
factor: 1 / (start + 1 + end)
};
}
_generate() {
const adapter = this._adapter;
const min = this.min;
const max = this.max;
const options = this.options;
const timeOpts = options.time;
const minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, this._getLabelCapacity(min));
const stepSize = valueOrDefault(options.ticks.stepSize, 1);
const weekday = minor === "week" ? timeOpts.isoWeekday : false;
const hasWeekday = isNumber(weekday) || weekday === true;
const ticks = {};
let first = min;
let time, count;
if (hasWeekday) first = +adapter.startOf(first, "isoWeek", weekday);
first = +adapter.startOf(first, hasWeekday ? "day" : minor);
if (adapter.diff(max, min, minor) > 1e5 * stepSize) throw new Error(min + " and " + max + " are too far apart with stepSize of " + stepSize + " " + minor);
const timestamps = options.ticks.source === "data" && this.getDataTimestamps();
for (time = first, count = 0; time < max; time = +adapter.add(time, stepSize, minor), count++) addTick(ticks, time, timestamps);
if (time === max || options.bounds === "ticks" || count === 1) addTick(ticks, time, timestamps);
return Object.keys(ticks).sort(sorter).map((x) => +x);
}
getLabelForValue(value) {
const adapter = this._adapter;
const timeOpts = this.options.time;
if (timeOpts.tooltipFormat) return adapter.format(value, timeOpts.tooltipFormat);
return adapter.format(value, timeOpts.displayFormats.datetime);
}
format(value, format) {
const formats = this.options.time.displayFormats;
const unit = this._unit;
const fmt = format || formats[unit];
return this._adapter.format(value, fmt);
}
_tickFormatFunction(time, index$1, ticks, format) {
const options = this.options;
const formatter = options.ticks.callback;
if (formatter) return callback(formatter, [
time,
index$1,
ticks
], this);
const formats = options.time.displayFormats;
const unit = this._unit;
const majorUnit = this._majorUnit;
const minorFormat = unit && formats[unit];
const majorFormat = majorUnit && formats[majorUnit];
const tick = ticks[index$1];
const major = majorUnit && majorFormat && tick && tick.major;
return this._adapter.format(time, format || (major ? majorFormat : minorFormat));
}
generateTickLabels(ticks) {
let i, ilen, tick;
for (i = 0, ilen = ticks.length; i < ilen; ++i) {
tick = ticks[i];
tick.label = this._tickFormatFunction(tick.value, i, ticks);
}
}
getDecimalForValue(value) {
return value === null ? NaN : (value - this.min) / (this.max - this.min);
}
getPixelForValue(value) {
const offsets = this._offsets;
const pos = this.getDecimalForValue(value);
return this.getPixelForDecimal((offsets.start + pos) * offsets.factor);
}
getValueForPixel(pixel) {
const offsets = this._offsets;
const pos = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end;
return this.min + pos * (this.max - this.min);
}
_getLabelSize(label) {
const ticksOpts = this.options.ticks;
const tickLabelWidth = this.ctx.measureText(label).width;
const angle = toRadians(this.isHorizontal() ? ticksOpts.maxRotation : ticksOpts.minRotation);
const cosRotation = Math.cos(angle);
const sinRotation = Math.sin(angle);
const tickFontSize = this._resolveTickFontOptions(0).size;
return {
w: tickLabelWidth * cosRotation + tickFontSize * sinRotation,
h: tickLabelWidth * sinRotation + tickFontSize * cosRotation
};
}
_getLabelCapacity(exampleTime) {
const timeOpts = this.options.time;
const displayFormats = timeOpts.displayFormats;
const format = displayFormats[timeOpts.unit] || displayFormats.millisecond;
const exampleLabel = this._tickFormatFunction(exampleTime, 0, ticksFromTimestamps(this, [exampleTime], this._majorUnit), format);
const size = this._getLabelSize(exampleLabel);
const capacity = Math.floor(this.isHorizontal() ? this.width / size.w : this.height / size.h) - 1;
return capacity > 0 ? capacity : 1;
}
getDataTimestamps() {
let timestamps = this._cache.data || [];
let i, ilen;
if (timestamps.length) return timestamps;
const metas = this.getMatchingVisibleMetas();
if (this._normalized && metas.length) return this._cache.data = metas[0].controller.getAllParsedValues(this);
for (i = 0, ilen = metas.length; i < ilen; ++i) timestamps = timestamps.concat(metas[i].controller.getAllParsedValues(this));
return this._cache.data = this.normalize(timestamps);
}
getLabelTimestamps() {
const timestamps = this._cache.labels || [];
let i, ilen;
if (timestamps.length) return timestamps;
const labels = this.getLabels();
for (i = 0, ilen = labels.length; i < ilen; ++i) timestamps.push(parse(this, labels[i]));
return this._cache.labels = this._normalized ? timestamps : this.normalize(timestamps);
}
normalize(values) {
return _arrayUnique(values.sort(sorter));
}
};
function interpolate(table, val, reverse) {
let lo = 0;
let hi = table.length - 1;
let prevSource, nextSource, prevTarget, nextTarget;
if (reverse) {
if (val >= table[lo].pos && val <= table[hi].pos) ({lo, hi} = _lookupByKey(table, "pos", val));
({pos: prevSource, time: prevTarget} = table[lo]);
({pos: nextSource, time: nextTarget} = table[hi]);
} else {
if (val >= table[lo].time && val <= table[hi].time) ({lo, hi} = _lookupByKey(table, "time", val));
({time: prevSource, pos: prevTarget} = table[lo]);
({time: nextSource, pos: nextTarget} = table[hi]);
}
const span = nextSource - prevSource;
return span ? prevTarget + (nextTarget - prevTarget) * (val - prevSource) / span : prevTarget;
}
(class extends TimeScale {
static id = "timeseries";
static defaults = TimeScale.defaults;
constructor(props) {
super(props);
this._table = [];
this._minPos = void 0;
this._tableRange = void 0;
}
initOffsets() {
const timestamps = this._getTimestampsForTable();
const table = this._table = this.buildLookupTable(timestamps);
this._minPos = interpolate(table, this.min);
this._tableRange = interpolate(table, this.max) - this._minPos;
super.initOffsets(timestamps);
}
buildLookupTable(timestamps) {
const { min, max } = this;
const items = [];
const table = [];
let i, ilen, prev, curr, next;
for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
curr = timestamps[i];
if (curr >= min && curr <= max) items.push(curr);
}
if (items.length < 2) return [{
time: min,
pos: 0
}, {
time: max,
pos: 1
}];
for (i = 0, ilen = items.length; i < ilen; ++i) {
next = items[i + 1];
prev = items[i - 1];
curr = items[i];
if (Math.round((next + prev) / 2) !== curr) table.push({
time: curr,
pos: i / (ilen - 1)
});
}
return table;
}
_generate() {
const min = this.min;
const max = this.max;
let timestamps = super.getDataTimestamps();
if (!timestamps.includes(min) || !timestamps.length) timestamps.splice(0, 0, min);
if (!timestamps.includes(max) || timestamps.length === 1) timestamps.push(max);
return timestamps.sort((a, b) => a - b);
}
_getTimestampsForTable() {
let timestamps = this._cache.all || [];
if (timestamps.length) return timestamps;
const data = this.getDataTimestamps();
const label = this.getLabelTimestamps();
if (data.length && label.length) timestamps = this.normalize(data.concat(label));
else timestamps = data.length ? data : label;
timestamps = this._cache.all = timestamps;
return timestamps;
}
getDecimalForValue(value) {
return (interpolate(this._table, value) - this._minPos) / this._tableRange;
}
getValueForPixel(pixel) {
const offsets = this._offsets;
const decimal = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end;
return interpolate(this._table, decimal * this._tableRange + this._minPos, true);
}
});
export { LineController as a, PointElement as c, plugin_title as d, plugin_tooltip as f, Chart as i, index as l, BarElement as n, LineElement as o, CategoryScale as r, LinearScale as s, BarController as t, plugin_legend as u };