recharts
Version:
React charts
289 lines (284 loc) • 13 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.getAngledRectangleWidth = exports.formatAxisMap = exports.createLabeledScales = exports.ScaleHelper = void 0;
exports.normalizeAngle = normalizeAngle;
exports.rectWithPoints = exports.rectWithCoords = void 0;
var _mapValues = _interopRequireDefault(require("lodash/mapValues"));
var _every = _interopRequireDefault(require("lodash/every"));
var _ChartUtils = require("./ChartUtils");
var _ReactUtils = require("./ReactUtils");
var _DataUtils = require("./DataUtils");
var _Bar = require("../cartesian/Bar");
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : String(i); }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
/**
* Calculate the scale function, position, width, height of axes
* @param {Object} props Latest props
* @param {Object} axisMap The configuration of axes
* @param {Object} offset The offset of main part in the svg element
* @param {String} axisType The type of axes, x-axis or y-axis
* @param {String} chartName The name of chart
* @return {Object} Configuration
*/
var formatAxisMap = exports.formatAxisMap = function formatAxisMap(props, axisMap, offset, axisType, chartName) {
var width = props.width,
height = props.height,
layout = props.layout,
children = props.children;
var ids = Object.keys(axisMap);
var steps = {
left: offset.left,
leftMirror: offset.left,
right: width - offset.right,
rightMirror: width - offset.right,
top: offset.top,
topMirror: offset.top,
bottom: height - offset.bottom,
bottomMirror: height - offset.bottom
};
var hasBar = !!(0, _ReactUtils.findChildByType)(children, _Bar.Bar);
return ids.reduce(function (result, id) {
var axis = axisMap[id];
var orientation = axis.orientation,
domain = axis.domain,
_axis$padding = axis.padding,
padding = _axis$padding === void 0 ? {} : _axis$padding,
mirror = axis.mirror,
reversed = axis.reversed;
var offsetKey = "".concat(orientation).concat(mirror ? 'Mirror' : '');
var calculatedPadding, range, x, y, needSpace;
if (axis.type === 'number' && (axis.padding === 'gap' || axis.padding === 'no-gap')) {
var diff = domain[1] - domain[0];
var smallestDistanceBetweenValues = Infinity;
var sortedValues = axis.categoricalDomain.sort();
sortedValues.forEach(function (value, index) {
if (index > 0) {
smallestDistanceBetweenValues = Math.min((value || 0) - (sortedValues[index - 1] || 0), smallestDistanceBetweenValues);
}
});
var smallestDistanceInPercent = smallestDistanceBetweenValues / diff;
var rangeWidth = axis.layout === 'vertical' ? offset.height : offset.width;
if (axis.padding === 'gap') {
calculatedPadding = smallestDistanceInPercent * rangeWidth / 2;
}
if (axis.padding === 'no-gap') {
var gap = (0, _DataUtils.getPercentValue)(props.barCategoryGap, smallestDistanceInPercent * rangeWidth);
var halfBand = smallestDistanceInPercent * rangeWidth / 2;
calculatedPadding = halfBand - gap - (halfBand - gap) / rangeWidth * gap;
}
}
if (axisType === 'xAxis') {
range = [offset.left + (padding.left || 0) + (calculatedPadding || 0), offset.left + offset.width - (padding.right || 0) - (calculatedPadding || 0)];
} else if (axisType === 'yAxis') {
range = layout === 'horizontal' ? [offset.top + offset.height - (padding.bottom || 0), offset.top + (padding.top || 0)] : [offset.top + (padding.top || 0) + (calculatedPadding || 0), offset.top + offset.height - (padding.bottom || 0) - (calculatedPadding || 0)];
} else {
range = axis.range;
}
if (reversed) {
range = [range[1], range[0]];
}
var _parseScale = (0, _ChartUtils.parseScale)(axis, chartName, hasBar),
scale = _parseScale.scale,
realScaleType = _parseScale.realScaleType;
scale.domain(domain).range(range);
(0, _ChartUtils.checkDomainOfScale)(scale);
var ticks = (0, _ChartUtils.getTicksOfScale)(scale, _objectSpread(_objectSpread({}, axis), {}, {
realScaleType: realScaleType
}));
if (axisType === 'xAxis') {
needSpace = orientation === 'top' && !mirror || orientation === 'bottom' && mirror;
x = offset.left;
y = steps[offsetKey] - needSpace * axis.height;
} else if (axisType === 'yAxis') {
needSpace = orientation === 'left' && !mirror || orientation === 'right' && mirror;
x = steps[offsetKey] - needSpace * axis.width;
y = offset.top;
}
var finalAxis = _objectSpread(_objectSpread(_objectSpread({}, axis), ticks), {}, {
realScaleType: realScaleType,
x: x,
y: y,
scale: scale,
width: axisType === 'xAxis' ? offset.width : axis.width,
height: axisType === 'yAxis' ? offset.height : axis.height
});
finalAxis.bandSize = (0, _ChartUtils.getBandSizeOfAxis)(finalAxis, ticks);
if (!axis.hide && axisType === 'xAxis') {
steps[offsetKey] += (needSpace ? -1 : 1) * finalAxis.height;
} else if (!axis.hide) {
steps[offsetKey] += (needSpace ? -1 : 1) * finalAxis.width;
}
return _objectSpread(_objectSpread({}, result), {}, _defineProperty({}, id, finalAxis));
}, {});
};
var rectWithPoints = exports.rectWithPoints = function rectWithPoints(_ref, _ref2) {
var x1 = _ref.x,
y1 = _ref.y;
var x2 = _ref2.x,
y2 = _ref2.y;
return {
x: Math.min(x1, x2),
y: Math.min(y1, y2),
width: Math.abs(x2 - x1),
height: Math.abs(y2 - y1)
};
};
/**
* Compute the x, y, width, and height of a box from two reference points.
* @param {Object} coords x1, x2, y1, and y2
* @return {Object} object
*/
var rectWithCoords = exports.rectWithCoords = function rectWithCoords(_ref3) {
var x1 = _ref3.x1,
y1 = _ref3.y1,
x2 = _ref3.x2,
y2 = _ref3.y2;
return rectWithPoints({
x: x1,
y: y1
}, {
x: x2,
y: y2
});
};
var ScaleHelper = exports.ScaleHelper = /*#__PURE__*/function () {
function ScaleHelper(scale) {
_classCallCheck(this, ScaleHelper);
this.scale = scale;
}
_createClass(ScaleHelper, [{
key: "domain",
get: function get() {
return this.scale.domain;
}
}, {
key: "range",
get: function get() {
return this.scale.range;
}
}, {
key: "rangeMin",
get: function get() {
return this.range()[0];
}
}, {
key: "rangeMax",
get: function get() {
return this.range()[1];
}
}, {
key: "bandwidth",
get: function get() {
return this.scale.bandwidth;
}
}, {
key: "apply",
value: function apply(value) {
var _ref4 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
bandAware = _ref4.bandAware,
position = _ref4.position;
if (value === undefined) {
return undefined;
}
if (position) {
switch (position) {
case 'start':
{
return this.scale(value);
}
case 'middle':
{
var offset = this.bandwidth ? this.bandwidth() / 2 : 0;
return this.scale(value) + offset;
}
case 'end':
{
var _offset = this.bandwidth ? this.bandwidth() : 0;
return this.scale(value) + _offset;
}
default:
{
return this.scale(value);
}
}
}
if (bandAware) {
var _offset2 = this.bandwidth ? this.bandwidth() / 2 : 0;
return this.scale(value) + _offset2;
}
return this.scale(value);
}
}, {
key: "isInRange",
value: function isInRange(value) {
var range = this.range();
var first = range[0];
var last = range[range.length - 1];
return first <= last ? value >= first && value <= last : value >= last && value <= first;
}
}], [{
key: "create",
value: function create(obj) {
return new ScaleHelper(obj);
}
}]);
return ScaleHelper;
}();
_defineProperty(ScaleHelper, "EPS", 1e-4);
var createLabeledScales = exports.createLabeledScales = function createLabeledScales(options) {
var scales = Object.keys(options).reduce(function (res, key) {
return _objectSpread(_objectSpread({}, res), {}, _defineProperty({}, key, ScaleHelper.create(options[key])));
}, {});
return _objectSpread(_objectSpread({}, scales), {}, {
apply: function apply(coord) {
var _ref5 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
bandAware = _ref5.bandAware,
position = _ref5.position;
return (0, _mapValues["default"])(coord, function (value, label) {
return scales[label].apply(value, {
bandAware: bandAware,
position: position
});
});
},
isInRange: function isInRange(coord) {
return (0, _every["default"])(coord, function (value, label) {
return scales[label].isInRange(value);
});
}
});
};
/** Normalizes the angle so that 0 <= angle < 180.
* @param {number} angle Angle in degrees.
* @return {number} the normalized angle with a value of at least 0 and never greater or equal to 180. */
function normalizeAngle(angle) {
return (angle % 180 + 180) % 180;
}
/** Calculates the width of the largest horizontal line that fits inside a rectangle that is displayed at an angle.
* @param {Object} size Width and height of the text in a horizontal position.
* @param {number} angle Angle in degrees in which the text is displayed.
* @return {number} The width of the largest horizontal line that fits inside a rectangle that is displayed at an angle.
*/
var getAngledRectangleWidth = exports.getAngledRectangleWidth = function getAngledRectangleWidth(_ref6) {
var width = _ref6.width,
height = _ref6.height;
var angle = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
// Ensure angle is >= 0 && < 180
var normalizedAngle = normalizeAngle(angle);
var angleRadians = normalizedAngle * Math.PI / 180;
/* Depending on the height and width of the rectangle, we may need to use different formulas to calculate the angled
* width. This threshold defines when each formula should kick in. */
var angleThreshold = Math.atan(height / width);
var angledWidth = angleRadians > angleThreshold && angleRadians < Math.PI - angleThreshold ? height / Math.sin(angleRadians) : width / Math.cos(angleRadians);
return Math.abs(angledWidth);
};