recharts
Version:
React charts
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JavaScript
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(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == typeof i ? i : 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); }
import { getPercentValue, isNumber, isPercent } from '../util/DataUtils';
import { cartesianViewBoxToTrapezoid } from '../context/chartLayoutContext';
/**
* Calculates the position and alignment for a generic element in a Cartesian coordinate system.
*
* @param options - The options including viewBox, position, and offset.
* @returns The calculated x, y, alignment and size.
*/
export var getCartesianPosition = options => {
var {
viewBox,
position,
offset = 0,
parentViewBox: parentViewBoxFromOptions,
clamp
} = options;
var {
x,
y,
height,
upperWidth,
lowerWidth
} = cartesianViewBoxToTrapezoid(viewBox);
// Funnel.tsx provides a viewBox where `x` is the top-left of the trapezoid shape.
var upperX = x;
// The trapezoid is centered, so we can calculate the other corners from the top-left.
var lowerX = x + (upperWidth - lowerWidth) / 2;
// middleX is the x-coordinate of the left edge at the vertical midpoint of the trapezoid.
var middleX = (upperX + lowerX) / 2;
// The width of the trapezoid at its vertical midpoint.
var midHeightWidth = (upperWidth + lowerWidth) / 2;
// The center x-coordinate is constant for the entire height of the trapezoid.
var centerX = upperX + upperWidth / 2;
// Define vertical offsets and position inverts based on the value being positive or negative.
// This allows labels to be positioned correctly for bars with negative height.
var verticalSign = height >= 0 ? 1 : -1;
var verticalOffset = verticalSign * offset;
var verticalEnd = verticalSign > 0 ? 'end' : 'start';
var verticalStart = verticalSign > 0 ? 'start' : 'end';
// Define horizontal offsets and position inverts based on the value being positive or negative.
// This allows labels to be positioned correctly for bars with negative width.
var horizontalSign = upperWidth >= 0 ? 1 : -1;
var horizontalOffset = horizontalSign * offset;
var horizontalEnd = horizontalSign > 0 ? 'end' : 'start';
var horizontalStart = horizontalSign > 0 ? 'start' : 'end';
// We assume parentViewBox is generic if provided.
// The user has asserted that parentViewBox will be CartesianViewBoxRequired if present.
var parentViewBox = parentViewBoxFromOptions;
if (position === 'top') {
var result = {
x: upperX + upperWidth / 2,
y: y - verticalOffset,
horizontalAnchor: 'middle',
verticalAnchor: verticalEnd
};
if (clamp && parentViewBox) {
result.height = Math.max(y - parentViewBox.y, 0);
result.width = upperWidth;
}
return result;
}
if (position === 'bottom') {
var _result = {
x: lowerX + lowerWidth / 2,
y: y + height + verticalOffset,
horizontalAnchor: 'middle',
verticalAnchor: verticalStart
};
if (clamp && parentViewBox) {
_result.height = Math.max(parentViewBox.y + parentViewBox.height - (y + height), 0);
_result.width = lowerWidth;
}
return _result;
}
if (position === 'left') {
var _result2 = {
x: middleX - horizontalOffset,
y: y + height / 2,
horizontalAnchor: horizontalEnd,
verticalAnchor: 'middle'
};
if (clamp && parentViewBox) {
_result2.width = Math.max(_result2.x - parentViewBox.x, 0);
_result2.height = height;
}
return _result2;
}
if (position === 'right') {
var _result3 = {
x: middleX + midHeightWidth + horizontalOffset,
y: y + height / 2,
horizontalAnchor: horizontalStart,
verticalAnchor: 'middle'
};
if (clamp && parentViewBox) {
_result3.width = Math.max(parentViewBox.x + parentViewBox.width - _result3.x, 0);
_result3.height = height;
}
return _result3;
}
var sizeAttrs = clamp && parentViewBox ? {
width: midHeightWidth,
height
} : {};
if (position === 'insideLeft') {
return _objectSpread({
x: middleX + horizontalOffset,
y: y + height / 2,
horizontalAnchor: horizontalStart,
verticalAnchor: 'middle'
}, sizeAttrs);
}
if (position === 'insideRight') {
return _objectSpread({
x: middleX + midHeightWidth - horizontalOffset,
y: y + height / 2,
horizontalAnchor: horizontalEnd,
verticalAnchor: 'middle'
}, sizeAttrs);
}
if (position === 'insideTop') {
return _objectSpread({
x: upperX + upperWidth / 2,
y: y + verticalOffset,
horizontalAnchor: 'middle',
verticalAnchor: verticalStart
}, sizeAttrs);
}
if (position === 'insideBottom') {
return _objectSpread({
x: lowerX + lowerWidth / 2,
y: y + height - verticalOffset,
horizontalAnchor: 'middle',
verticalAnchor: verticalEnd
}, sizeAttrs);
}
if (position === 'insideTopLeft') {
return _objectSpread({
x: upperX + horizontalOffset,
y: y + verticalOffset,
horizontalAnchor: horizontalStart,
verticalAnchor: verticalStart
}, sizeAttrs);
}
if (position === 'insideTopRight') {
return _objectSpread({
x: upperX + upperWidth - horizontalOffset,
y: y + verticalOffset,
horizontalAnchor: horizontalEnd,
verticalAnchor: verticalStart
}, sizeAttrs);
}
if (position === 'insideBottomLeft') {
return _objectSpread({
x: lowerX + horizontalOffset,
y: y + height - verticalOffset,
horizontalAnchor: horizontalStart,
verticalAnchor: verticalEnd
}, sizeAttrs);
}
if (position === 'insideBottomRight') {
return _objectSpread({
x: lowerX + lowerWidth - horizontalOffset,
y: y + height - verticalOffset,
horizontalAnchor: horizontalEnd,
verticalAnchor: verticalEnd
}, sizeAttrs);
}
if (!!position && typeof position === 'object' && (isNumber(position.x) || isPercent(position.x)) && (isNumber(position.y) || isPercent(position.y))) {
// TODO: This is not quite right. The width of the trapezoid changes with y.
// A percentage-based x should be relative to the width at that y.
// For now, we use the mid-height width as a reasonable approximation.
return _objectSpread({
x: x + getPercentValue(position.x, midHeightWidth),
y: y + getPercentValue(position.y, height),
horizontalAnchor: 'end',
verticalAnchor: 'end'
}, sizeAttrs);
}
return _objectSpread({
x: centerX,
y: y + height / 2,
horizontalAnchor: 'middle',
verticalAnchor: 'middle'
}, sizeAttrs);
};