913 lines
41 KiB
JavaScript
913 lines
41 KiB
JavaScript
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/**
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* @license Highcharts JS v11.4.1 (2024-04-04)
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*
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* (c) 2009-2024 Torstein Honsi
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*
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* License: www.highcharts.com/license
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*/
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(function (factory) {
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if (typeof module === 'object' && module.exports) {
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factory['default'] = factory;
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module.exports = factory;
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} else if (typeof define === 'function' && define.amd) {
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define('highcharts/modules/series-label', ['highcharts'], function (Highcharts) {
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factory(Highcharts);
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factory.Highcharts = Highcharts;
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return factory;
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});
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} else {
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factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined);
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}
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}(function (Highcharts) {
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'use strict';
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var _modules = Highcharts ? Highcharts._modules : {};
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function _registerModule(obj, path, args, fn) {
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if (!obj.hasOwnProperty(path)) {
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obj[path] = fn.apply(null, args);
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if (typeof CustomEvent === 'function') {
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window.dispatchEvent(new CustomEvent(
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'HighchartsModuleLoaded',
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{ detail: { path: path, module: obj[path] } }
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));
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}
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}
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}
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_registerModule(_modules, 'Extensions/SeriesLabel/SeriesLabelDefaults.js', [], function () {
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/* *
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*
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* (c) 2009-2024 Torstein Honsi
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*
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* License: www.highcharts.com/license
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*
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* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
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*
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* */
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/* *
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*
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* Constants
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*
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* */
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/**
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* Series labels are placed as close to the series as possible in a
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* natural way, seeking to avoid other series. The goal of this
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* feature is to make the chart more easily readable, like if a
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* human designer placed the labels in the optimal position.
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*
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* The series labels currently work with series types having a
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* `graph` or an `area`.
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*
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* @sample highcharts/series-label/line-chart
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* Line chart
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* @sample highcharts/demo/streamgraph
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* Stream graph
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* @sample highcharts/series-label/stock-chart
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* Stock chart
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*
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* @declare Highcharts.SeriesLabelOptionsObject
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* @since 6.0.0
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* @product highcharts highstock gantt
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* @requires modules/series-label
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* @optionparent plotOptions.series.label
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*/
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const SeriesLabelDefaults = {
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/**
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* Enable the series label per series.
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*/
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enabled: true,
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/**
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* Allow labels to be placed distant to the graph if necessary,
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* and draw a connector line to the graph. Setting this option
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* to true may decrease the performance significantly, since the
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* algorithm with systematically search for open spaces in the
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* whole plot area. Visually, it may also result in a more
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* cluttered chart, though more of the series will be labeled.
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*/
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connectorAllowed: false,
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/**
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* If the label is closer than this to a neighbour graph, draw a
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* connector.
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*/
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connectorNeighbourDistance: 24,
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/**
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* A format string for the label, with support for a subset of
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* HTML. Variables are enclosed by curly brackets. Available
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* variables are `name`, `options.xxx`, `color` and other
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* members from the `series` object. Use this option also to set
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* a static text for the label.
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*
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* @type string
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* @since 8.1.0
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*/
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format: void 0,
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/**
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* Callback function to format each of the series' labels. The
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* `this` keyword refers to the series object. By default the
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* `formatter` is undefined and the `series.name` is rendered.
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*
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* @type {Highcharts.FormatterCallbackFunction<Series>}
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* @since 8.1.0
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*/
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formatter: void 0,
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/**
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* For area-like series, allow the font size to vary so that
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* small areas get a smaller font size. The default applies this
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* effect to area-like series but not line-like series.
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*
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* @type {number|null}
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*/
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minFontSize: null,
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/**
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* For area-like series, allow the font size to vary so that
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* small areas get a smaller font size. The default applies this
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* effect to area-like series but not line-like series.
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*
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* @type {number|null}
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*/
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maxFontSize: null,
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/**
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* Draw the label on the area of an area series. By default it
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* is drawn on the area. Set it to `false` to draw it next to
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* the graph instead.
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*
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* @type {boolean|null}
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*/
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onArea: null,
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/**
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* Styles for the series label. The color defaults to the series
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* color, or a contrast color if `onArea`.
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*
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* @type {Highcharts.CSSObject}
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*/
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style: {
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/** @internal */
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fontSize: '0.8em',
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/** @internal */
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fontWeight: 'bold'
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},
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/**
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* Whether to use HTML to render the series label.
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*/
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useHTML: false,
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/**
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* An array of boxes to avoid when laying out the labels. Each
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* item has a `left`, `right`, `top` and `bottom` property.
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*
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* @type {Array<Highcharts.LabelIntersectBoxObject>}
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*/
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boxesToAvoid: []
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};
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/* *
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*
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* Default Export
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*
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* */
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return SeriesLabelDefaults;
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});
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_registerModule(_modules, 'Extensions/SeriesLabel/SeriesLabelUtilities.js', [], function () {
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/* *
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*
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* (c) 2009-2024 Torstein Honsi
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*
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* License: www.highcharts.com/license
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*
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* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
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*
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* */
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/* *
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*
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* Functions
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*
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* */
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/**
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* Counter-clockwise, part of the fast line intersection logic.
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*
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* @private
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* @function ccw
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*/
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function ccw(x1, y1, x2, y2, x3, y3) {
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const cw = ((y3 - y1) * (x2 - x1)) - ((y2 - y1) * (x3 - x1));
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return cw > 0 ? true : !(cw < 0);
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}
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/**
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* Detect if two lines intersect.
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*
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* @private
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* @function intersectLine
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*/
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function intersectLine(x1, y1, x2, y2, x3, y3, x4, y4) {
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return ccw(x1, y1, x3, y3, x4, y4) !== ccw(x2, y2, x3, y3, x4, y4) &&
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ccw(x1, y1, x2, y2, x3, y3) !== ccw(x1, y1, x2, y2, x4, y4);
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}
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/**
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* Detect if a box intersects with a line.
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*
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* @private
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* @function boxIntersectLine
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*/
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function boxIntersectLine(x, y, w, h, x1, y1, x2, y2) {
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return (intersectLine(x, y, x + w, y, x1, y1, x2, y2) || // Top of label
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intersectLine(x + w, y, x + w, y + h, x1, y1, x2, y2) || // Right
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intersectLine(x, y + h, x + w, y + h, x1, y1, x2, y2) || // Bottom
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intersectLine(x, y, x, y + h, x1, y1, x2, y2) // Left of label
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);
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}
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/**
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* @private
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*/
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function intersectRect(r1, r2) {
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return !(r2.left > r1.right ||
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r2.right < r1.left ||
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r2.top > r1.bottom ||
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r2.bottom < r1.top);
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}
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/* *
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*
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* Default Export
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*
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* */
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const SeriesLabelUtilities = {
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boxIntersectLine,
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intersectRect
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};
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return SeriesLabelUtilities;
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});
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_registerModule(_modules, 'Extensions/SeriesLabel/SeriesLabel.js', [_modules['Core/Animation/AnimationUtilities.js'], _modules['Core/Templating.js'], _modules['Core/Defaults.js'], _modules['Core/Globals.js'], _modules['Extensions/SeriesLabel/SeriesLabelDefaults.js'], _modules['Extensions/SeriesLabel/SeriesLabelUtilities.js'], _modules['Core/Utilities.js']], function (A, T, D, H, SeriesLabelDefaults, SLU, U) {
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/* *
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*
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* (c) 2009-2024 Torstein Honsi
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*
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* License: www.highcharts.com/license
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*
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* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
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*
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* */
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/*
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* Highcharts module to place labels next to a series in a natural position.
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*
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* TODO:
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* - add column support (box collision detection, boxesToAvoid logic)
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* - add more options (connector, format, formatter)
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*
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* https://jsfiddle.net/highcharts/L2u9rpwr/
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* https://jsfiddle.net/highcharts/y5A37/
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* https://jsfiddle.net/highcharts/264Nm/
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* https://jsfiddle.net/highcharts/y5A37/
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*/
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const { animObject } = A;
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const { format } = T;
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const { setOptions } = D;
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const { composed } = H;
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const { boxIntersectLine, intersectRect } = SLU;
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const { addEvent, extend, fireEvent, isNumber, pick, pushUnique, syncTimeout } = U;
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/* *
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*
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* Constants
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*
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* */
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const labelDistance = 3;
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/* *
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*
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* Functions
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*
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* */
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/**
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* Check whether a proposed label position is clear of other elements.
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* @private
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*/
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function checkClearPoint(series, x, y, bBox, checkDistance) {
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const chart = series.chart, seriesLabelOptions = series.options.label || {}, onArea = pick(seriesLabelOptions.onArea, !!series.area), findDistanceToOthers = (onArea || seriesLabelOptions.connectorAllowed), leastDistance = 16, boxesToAvoid = chart.boxesToAvoid;
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let distToOthersSquared = Number.MAX_VALUE, // Distance to other graphs
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distToPointSquared = Number.MAX_VALUE, dist, connectorPoint, withinRange, xDist, yDist, i, j;
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/**
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* Get the weight in order to determine the ideal position. Larger distance
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* to other series gives more weight. Smaller distance to the actual point
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* (connector points only) gives more weight.
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* @private
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*/
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function getWeight(distToOthersSquared, distToPointSquared) {
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return distToOthersSquared - distToPointSquared;
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}
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// First check for collision with existing labels
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for (i = 0; boxesToAvoid && i < boxesToAvoid.length; i += 1) {
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if (intersectRect(boxesToAvoid[i], {
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left: x,
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right: x + bBox.width,
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top: y,
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bottom: y + bBox.height
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})) {
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return false;
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}
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}
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// For each position, check if the lines around the label intersect with any
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// of the graphs.
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for (i = 0; i < chart.series.length; i += 1) {
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const serie = chart.series[i], points = serie.interpolatedPoints && [...serie.interpolatedPoints];
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if (serie.visible && points) {
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// Avoid the sides of the plot area
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const stepY = chart.plotHeight / 10;
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for (let chartY = chart.plotTop; chartY <= chart.plotTop + chart.plotHeight; chartY += stepY) {
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points.unshift({
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chartX: chart.plotLeft,
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chartY
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});
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points.push({
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chartX: chart.plotLeft + chart.plotWidth,
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chartY
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});
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}
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for (j = 1; j < points.length; j += 1) {
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if (
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// To avoid processing, only check intersection if the X
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// values are close to the box.
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points[j].chartX >= x - leastDistance &&
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points[j - 1].chartX <= x + bBox.width +
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leastDistance
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/* @todo condition above is not the same as below
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(
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points[j].chartX >=
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(x - leastDistance)
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) && (
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points[j - 1].chartX <=
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(x + bBox.width + leastDistance)
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) */
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) {
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// If any of the box sides intersect with the line, return.
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if (boxIntersectLine(x, y, bBox.width, bBox.height, points[j - 1].chartX, points[j - 1].chartY, points[j].chartX, points[j].chartY)) {
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return false;
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}
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// But if it is too far away (a padded box doesn't
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// intersect), also return.
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if (series === serie && !withinRange && checkDistance) {
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withinRange = boxIntersectLine(x - leastDistance, y - leastDistance, bBox.width + 2 * leastDistance, bBox.height + 2 * leastDistance, points[j - 1].chartX, points[j - 1].chartY, points[j].chartX, points[j].chartY);
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}
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}
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// Find the squared distance from the center of the label. On
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// area series, avoid its own graph.
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if ((findDistanceToOthers || withinRange) &&
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(series !== serie || onArea)) {
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xDist = x + bBox.width / 2 - points[j].chartX;
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yDist = y + bBox.height / 2 - points[j].chartY;
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distToOthersSquared = Math.min(distToOthersSquared, xDist * xDist + yDist * yDist);
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}
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}
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// Do we need a connector?
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if (!onArea &&
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findDistanceToOthers &&
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series === serie &&
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((checkDistance && !withinRange) ||
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distToOthersSquared < Math.pow(seriesLabelOptions.connectorNeighbourDistance || 1, 2))) {
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for (j = 1; j < points.length; j += 1) {
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|
|
dist = Math.min((Math.pow(x + bBox.width / 2 - points[j].chartX, 2) +
|
||
|
|
Math.pow(y + bBox.height / 2 - points[j].chartY, 2)), (Math.pow(x - points[j].chartX, 2) +
|
||
|
|
Math.pow(y - points[j].chartY, 2)), (Math.pow(x + bBox.width - points[j].chartX, 2) +
|
||
|
|
Math.pow(y - points[j].chartY, 2)), (Math.pow(x + bBox.width - points[j].chartX, 2) +
|
||
|
|
Math.pow(y + bBox.height - points[j].chartY, 2)), (Math.pow(x - points[j].chartX, 2) +
|
||
|
|
Math.pow(y + bBox.height - points[j].chartY, 2)));
|
||
|
|
if (dist < distToPointSquared) {
|
||
|
|
distToPointSquared = dist;
|
||
|
|
connectorPoint = points[j];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
withinRange = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return !checkDistance || withinRange ? {
|
||
|
|
x,
|
||
|
|
y,
|
||
|
|
weight: getWeight(distToOthersSquared, connectorPoint ? distToPointSquared : 0),
|
||
|
|
connectorPoint
|
||
|
|
} : false;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function compose(ChartClass, SVGRendererClass) {
|
||
|
|
if (pushUnique(composed, 'SeriesLabel')) {
|
||
|
|
// Leave both events, we handle animation differently (#9815)
|
||
|
|
addEvent(ChartClass, 'load', onChartRedraw);
|
||
|
|
addEvent(ChartClass, 'redraw', onChartRedraw);
|
||
|
|
SVGRendererClass.prototype.symbols.connector = symbolConnector;
|
||
|
|
setOptions({ plotOptions: { series: { label: SeriesLabelDefaults } } });
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* The main initialize method that runs on chart level after initialization and
|
||
|
|
* redraw. It runs in a timeout to prevent locking, and loops over all series,
|
||
|
|
* taking all series and labels into account when placing the labels.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Chart#drawSeriesLabels
|
||
|
|
*/
|
||
|
|
function drawSeriesLabels(chart) {
|
||
|
|
// Console.time('drawSeriesLabels');
|
||
|
|
chart.boxesToAvoid = [];
|
||
|
|
const labelSeries = chart.labelSeries || [], boxesToAvoid = chart.boxesToAvoid;
|
||
|
|
// Avoid data labels
|
||
|
|
chart.series.forEach((s) => (s.points || []).forEach((p) => (p.dataLabels || []).forEach((label) => {
|
||
|
|
const { width, height } = label.getBBox(), left = (label.translateX || 0) + (s.xAxis ? s.xAxis.pos : s.chart.plotLeft), top = (label.translateY || 0) + (s.yAxis ? s.yAxis.pos : s.chart.plotTop);
|
||
|
|
boxesToAvoid.push({
|
||
|
|
left,
|
||
|
|
top,
|
||
|
|
right: left + width,
|
||
|
|
bottom: top + height
|
||
|
|
});
|
||
|
|
})));
|
||
|
|
// Build the interpolated points
|
||
|
|
labelSeries.forEach(function (series) {
|
||
|
|
const seriesLabelOptions = series.options.label || {};
|
||
|
|
series.interpolatedPoints = getPointsOnGraph(series);
|
||
|
|
boxesToAvoid.push(...(seriesLabelOptions.boxesToAvoid || []));
|
||
|
|
});
|
||
|
|
chart.series.forEach(function (series) {
|
||
|
|
const labelOptions = series.options.label;
|
||
|
|
if (!labelOptions || (!series.xAxis && !series.yAxis)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
const colorClass = ('highcharts-color-' + pick(series.colorIndex, 'none')), isNew = !series.labelBySeries, minFontSize = labelOptions.minFontSize, maxFontSize = labelOptions.maxFontSize, inverted = chart.inverted, paneLeft = (inverted ? series.yAxis.pos : series.xAxis.pos), paneTop = (inverted ? series.xAxis.pos : series.yAxis.pos), paneWidth = chart.inverted ? series.yAxis.len : series.xAxis.len, paneHeight = chart.inverted ? series.xAxis.len : series.yAxis.len, points = series.interpolatedPoints, onArea = pick(labelOptions.onArea, !!series.area), results = [], xData = series.xData || [];
|
||
|
|
let bBox, x, y, clearPoint, i, best, label = series.labelBySeries, dataExtremes, areaMin, areaMax;
|
||
|
|
// Stay within the area data bounds (#10038)
|
||
|
|
if (onArea && !inverted) {
|
||
|
|
dataExtremes = [
|
||
|
|
series.xAxis.toPixels(xData[0]),
|
||
|
|
series.xAxis.toPixels(xData[xData.length - 1])
|
||
|
|
];
|
||
|
|
areaMin = Math.min.apply(Math, dataExtremes);
|
||
|
|
areaMax = Math.max.apply(Math, dataExtremes);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function insidePane(x, y, bBox) {
|
||
|
|
const leftBound = Math.max(paneLeft, pick(areaMin, -Infinity)), rightBound = Math.min(paneLeft + paneWidth, pick(areaMax, Infinity));
|
||
|
|
return (x > leftBound &&
|
||
|
|
x <= rightBound - bBox.width &&
|
||
|
|
y >= paneTop &&
|
||
|
|
y <= paneTop + paneHeight - bBox.height);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function destroyLabel() {
|
||
|
|
if (label) {
|
||
|
|
series.labelBySeries = label.destroy();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (series.visible && !series.boosted && points) {
|
||
|
|
if (!label) {
|
||
|
|
let labelText = series.name;
|
||
|
|
if (typeof labelOptions.format === 'string') {
|
||
|
|
labelText = format(labelOptions.format, series, chart);
|
||
|
|
}
|
||
|
|
else if (labelOptions.formatter) {
|
||
|
|
labelText = labelOptions.formatter.call(series);
|
||
|
|
}
|
||
|
|
series.labelBySeries = label = chart.renderer
|
||
|
|
.label(labelText, 0, 0, 'connector', 0, 0, labelOptions.useHTML)
|
||
|
|
.addClass('highcharts-series-label ' +
|
||
|
|
'highcharts-series-label-' + series.index + ' ' +
|
||
|
|
(series.options.className || '') + ' ' +
|
||
|
|
colorClass);
|
||
|
|
if (!chart.renderer.styledMode) {
|
||
|
|
const color = typeof series.color === 'string' ?
|
||
|
|
series.color : "#666666" /* Palette.neutralColor60 */;
|
||
|
|
label.css(extend({
|
||
|
|
color: onArea ?
|
||
|
|
chart.renderer.getContrast(color) :
|
||
|
|
color
|
||
|
|
}, labelOptions.style || {}));
|
||
|
|
label.attr({
|
||
|
|
opacity: chart.renderer.forExport ? 1 : 0,
|
||
|
|
stroke: series.color,
|
||
|
|
'stroke-width': 1
|
||
|
|
});
|
||
|
|
}
|
||
|
|
// Adapt label sizes to the sum of the data
|
||
|
|
if (minFontSize && maxFontSize) {
|
||
|
|
label.css({
|
||
|
|
fontSize: labelFontSize(series, minFontSize, maxFontSize)
|
||
|
|
});
|
||
|
|
}
|
||
|
|
label
|
||
|
|
.attr({
|
||
|
|
padding: 0,
|
||
|
|
zIndex: 3
|
||
|
|
})
|
||
|
|
.add();
|
||
|
|
}
|
||
|
|
bBox = label.getBBox();
|
||
|
|
bBox.width = Math.round(bBox.width);
|
||
|
|
// Ideal positions are centered above or below a point on right side
|
||
|
|
// of chart
|
||
|
|
for (i = points.length - 1; i > 0; i -= 1) {
|
||
|
|
if (onArea) {
|
||
|
|
// Centered
|
||
|
|
x = (points[i].chartCenterX ?? points[i].chartX) -
|
||
|
|
bBox.width / 2;
|
||
|
|
y = (points[i].chartCenterY ?? points[i].chartY) -
|
||
|
|
bBox.height / 2;
|
||
|
|
if (insidePane(x, y, bBox)) {
|
||
|
|
best = checkClearPoint(series, x, y, bBox);
|
||
|
|
}
|
||
|
|
if (best) {
|
||
|
|
results.push(best);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// Right - up
|
||
|
|
x = points[i].chartX + labelDistance;
|
||
|
|
y = points[i].chartY - bBox.height - labelDistance;
|
||
|
|
if (insidePane(x, y, bBox)) {
|
||
|
|
best = checkClearPoint(series, x, y, bBox, true);
|
||
|
|
}
|
||
|
|
if (best) {
|
||
|
|
results.push(best);
|
||
|
|
}
|
||
|
|
// Right - down
|
||
|
|
x = points[i].chartX + labelDistance;
|
||
|
|
y = points[i].chartY + labelDistance;
|
||
|
|
if (insidePane(x, y, bBox)) {
|
||
|
|
best = checkClearPoint(series, x, y, bBox, true);
|
||
|
|
}
|
||
|
|
if (best) {
|
||
|
|
results.push(best);
|
||
|
|
}
|
||
|
|
// Left - down
|
||
|
|
x = points[i].chartX - bBox.width - labelDistance;
|
||
|
|
y = points[i].chartY + labelDistance;
|
||
|
|
if (insidePane(x, y, bBox)) {
|
||
|
|
best = checkClearPoint(series, x, y, bBox, true);
|
||
|
|
}
|
||
|
|
if (best) {
|
||
|
|
results.push(best);
|
||
|
|
}
|
||
|
|
// Left - up
|
||
|
|
x = points[i].chartX - bBox.width - labelDistance;
|
||
|
|
y = points[i].chartY - bBox.height - labelDistance;
|
||
|
|
if (insidePane(x, y, bBox)) {
|
||
|
|
best = checkClearPoint(series, x, y, bBox, true);
|
||
|
|
}
|
||
|
|
if (best) {
|
||
|
|
results.push(best);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Brute force, try all positions on the chart in a 16x16 grid
|
||
|
|
if (labelOptions.connectorAllowed && !results.length && !onArea) {
|
||
|
|
for (x = paneLeft + paneWidth - bBox.width; x >= paneLeft; x -= 16) {
|
||
|
|
for (y = paneTop; y < paneTop + paneHeight - bBox.height; y += 16) {
|
||
|
|
clearPoint = checkClearPoint(series, x, y, bBox, true);
|
||
|
|
if (clearPoint) {
|
||
|
|
results.push(clearPoint);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (results.length) {
|
||
|
|
results.sort((a, b) => b.weight - a.weight);
|
||
|
|
best = results[0];
|
||
|
|
(chart.boxesToAvoid || []).push({
|
||
|
|
left: best.x,
|
||
|
|
right: best.x + bBox.width,
|
||
|
|
top: best.y,
|
||
|
|
bottom: best.y + bBox.height
|
||
|
|
});
|
||
|
|
// Move it if needed
|
||
|
|
const dist = Math.sqrt(Math.pow(Math.abs(best.x - (label.x || 0)), 2) +
|
||
|
|
Math.pow(Math.abs(best.y - (label.y || 0)), 2));
|
||
|
|
if (dist && series.labelBySeries) {
|
||
|
|
// Move fast and fade in - pure animation movement is
|
||
|
|
// distractive...
|
||
|
|
let attr = {
|
||
|
|
opacity: chart.renderer.forExport ? 1 : 0,
|
||
|
|
x: best.x,
|
||
|
|
y: best.y
|
||
|
|
}, anim = {
|
||
|
|
opacity: 1
|
||
|
|
};
|
||
|
|
// ... unless we're just moving a short distance
|
||
|
|
if (dist <= 10) {
|
||
|
|
anim = {
|
||
|
|
x: attr.x,
|
||
|
|
y: attr.y
|
||
|
|
};
|
||
|
|
attr = {};
|
||
|
|
}
|
||
|
|
// Default initial animation to a fraction of the series
|
||
|
|
// animation (#9396)
|
||
|
|
let animationOptions;
|
||
|
|
if (isNew) {
|
||
|
|
animationOptions = animObject(series.options.animation);
|
||
|
|
animationOptions.duration *= 0.2;
|
||
|
|
}
|
||
|
|
series.labelBySeries
|
||
|
|
.attr(extend(attr, {
|
||
|
|
anchorX: best.connectorPoint &&
|
||
|
|
(best.connectorPoint.plotX || 0) + paneLeft,
|
||
|
|
anchorY: best.connectorPoint &&
|
||
|
|
(best.connectorPoint.plotY || 0) + paneTop
|
||
|
|
}))
|
||
|
|
.animate(anim, animationOptions);
|
||
|
|
// Record closest point to stick to for sync redraw
|
||
|
|
series.options.kdNow = true;
|
||
|
|
series.buildKDTree();
|
||
|
|
const closest = series.searchPoint({
|
||
|
|
chartX: best.x,
|
||
|
|
chartY: best.y
|
||
|
|
}, true);
|
||
|
|
if (closest) {
|
||
|
|
label.closest = [
|
||
|
|
closest,
|
||
|
|
best.x - (closest.plotX || 0),
|
||
|
|
best.y - (closest.plotY || 0)
|
||
|
|
];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
destroyLabel();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
destroyLabel();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
fireEvent(chart, 'afterDrawSeriesLabels');
|
||
|
|
// Console.timeEnd('drawSeriesLabels');
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Points to avoid. In addition to actual data points, the label should avoid
|
||
|
|
* interpolated positions.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Series#getPointsOnGraph
|
||
|
|
*/
|
||
|
|
function getPointsOnGraph(series) {
|
||
|
|
if (!series.xAxis && !series.yAxis) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
const distance = 16, points = series.points, interpolated = [], graph = series.graph || series.area, node = graph && graph.element, inverted = series.chart.inverted, xAxis = series.xAxis, yAxis = series.yAxis, paneLeft = inverted ? yAxis.pos : xAxis.pos, paneTop = inverted ? xAxis.pos : yAxis.pos, paneHeight = inverted ? xAxis.len : yAxis.len, paneWidth = inverted ? yAxis.len : xAxis.len, seriesLabelOptions = series.options.label || {}, onArea = pick(seriesLabelOptions.onArea, !!series.area), translatedThreshold = yAxis.getThreshold(series.options.threshold), grid = {}, chartCenterKey = inverted ? 'chartCenterX' : 'chartCenterY';
|
||
|
|
let i, deltaX, deltaY, delta, len, n, j;
|
||
|
|
/**
|
||
|
|
* Push the point to the interpolated points, but only if that position in
|
||
|
|
* the grid has not been occupied. As a performance optimization, we divide
|
||
|
|
* the plot area into a grid and only add one point per series (#9815).
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function pushDiscrete(point) {
|
||
|
|
const cellSize = 8, key = Math.round((point.plotX || 0) / cellSize) + ',' +
|
||
|
|
Math.round((point.plotY || 0) / cellSize);
|
||
|
|
if (!grid[key]) {
|
||
|
|
grid[key] = 1;
|
||
|
|
interpolated.push(point);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// For splines, get the point at length (possible caveat: peaks are not
|
||
|
|
// correctly detected)
|
||
|
|
if (series.getPointSpline &&
|
||
|
|
node &&
|
||
|
|
node.getPointAtLength &&
|
||
|
|
!onArea &&
|
||
|
|
// Not performing well on complex series, node.getPointAtLength is too
|
||
|
|
// heavy (#9815)
|
||
|
|
points.length < (series.chart.plotSizeX || 0) / distance) {
|
||
|
|
// If it is animating towards a path definition, use that briefly, and
|
||
|
|
// reset
|
||
|
|
const d = graph.toD && graph.attr('d');
|
||
|
|
if (graph.toD) {
|
||
|
|
graph.attr({ d: graph.toD });
|
||
|
|
}
|
||
|
|
len = node.getTotalLength();
|
||
|
|
for (i = 0; i < len; i += distance) {
|
||
|
|
const domPoint = node.getPointAtLength(i), plotX = inverted ? paneWidth - domPoint.y : domPoint.x, plotY = inverted ? paneHeight - domPoint.x : domPoint.y;
|
||
|
|
pushDiscrete({
|
||
|
|
chartX: paneLeft + plotX,
|
||
|
|
chartY: paneTop + plotY,
|
||
|
|
plotX,
|
||
|
|
plotY
|
||
|
|
});
|
||
|
|
}
|
||
|
|
if (d) {
|
||
|
|
graph.attr({ d });
|
||
|
|
}
|
||
|
|
// Last point
|
||
|
|
const point = points[points.length - 1], pos = point.pos();
|
||
|
|
pushDiscrete({
|
||
|
|
chartX: paneLeft + (pos?.[0] || 0),
|
||
|
|
chartY: paneTop + (pos?.[1] || 0)
|
||
|
|
});
|
||
|
|
// Interpolate
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
len = points.length;
|
||
|
|
let last;
|
||
|
|
for (i = 0; i < len; i += 1) {
|
||
|
|
const point = points[i], [plotX, plotY] = point.pos() || [], { plotHigh } = point;
|
||
|
|
if (isNumber(plotX) && isNumber(plotY)) {
|
||
|
|
const ctlPoint = {
|
||
|
|
plotX,
|
||
|
|
plotY,
|
||
|
|
// Absolute coordinates so we can compare different panes
|
||
|
|
chartX: paneLeft + plotX,
|
||
|
|
chartY: paneTop + plotY
|
||
|
|
};
|
||
|
|
if (onArea) {
|
||
|
|
// Vertically centered inside area
|
||
|
|
if (plotHigh) {
|
||
|
|
ctlPoint.plotY = plotHigh;
|
||
|
|
ctlPoint.chartY = paneTop + plotHigh;
|
||
|
|
}
|
||
|
|
if (inverted) {
|
||
|
|
ctlPoint.chartCenterX = paneLeft + paneWidth - ((plotHigh ? plotHigh : point.plotY || 0) +
|
||
|
|
pick(point.yBottom, translatedThreshold)) / 2;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
ctlPoint.chartCenterY = paneTop + ((plotHigh ? plotHigh : plotY) +
|
||
|
|
pick(point.yBottom, translatedThreshold)) / 2;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Add interpolated points
|
||
|
|
if (last) {
|
||
|
|
deltaX = Math.abs(ctlPoint.chartX - last.chartX);
|
||
|
|
deltaY = Math.abs(ctlPoint.chartY - last.chartY);
|
||
|
|
delta = Math.max(deltaX, deltaY);
|
||
|
|
if (delta > distance) {
|
||
|
|
n = Math.ceil(delta / distance);
|
||
|
|
for (j = 1; j < n; j += 1) {
|
||
|
|
pushDiscrete({
|
||
|
|
chartX: last.chartX +
|
||
|
|
(ctlPoint.chartX - last.chartX) * (j / n),
|
||
|
|
chartY: last.chartY +
|
||
|
|
(ctlPoint.chartY - last.chartY) * (j / n),
|
||
|
|
[chartCenterKey]: (last[chartCenterKey] || 0) +
|
||
|
|
((ctlPoint[chartCenterKey] || 0) -
|
||
|
|
(last[chartCenterKey] || 0)) * (j / n),
|
||
|
|
plotX: (last.plotX || 0) +
|
||
|
|
(plotX - (last.plotX || 0)) * (j / n),
|
||
|
|
plotY: (last.plotY || 0) +
|
||
|
|
(plotY - (last.plotY || 0)) * (j / n)
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Add the real point in order to find positive and negative
|
||
|
|
// peaks
|
||
|
|
pushDiscrete(ctlPoint);
|
||
|
|
last = ctlPoint;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Get the bounding box so we can do a quick check first if the bounding
|
||
|
|
// boxes overlap.
|
||
|
|
/*
|
||
|
|
interpolated.bBox = node.getBBox();
|
||
|
|
interpolated.bBox.x += paneLeft;
|
||
|
|
interpolated.bBox.y += paneTop;
|
||
|
|
*/
|
||
|
|
return interpolated;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Overridable function to return series-specific font sizes for the labels. By
|
||
|
|
* default it returns bigger font sizes for series with the greater sum of y
|
||
|
|
* values.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function labelFontSize(series, minFontSize, maxFontSize) {
|
||
|
|
return minFontSize + (((series.sum || 0) / (series.chart.labelSeriesMaxSum || 0)) *
|
||
|
|
(maxFontSize - minFontSize)) + 'px';
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Prepare drawing series labels.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function onChartRedraw(e) {
|
||
|
|
if (this.renderer) {
|
||
|
|
const chart = this;
|
||
|
|
let delay = animObject(chart.renderer.globalAnimation).duration;
|
||
|
|
chart.labelSeries = [];
|
||
|
|
chart.labelSeriesMaxSum = 0;
|
||
|
|
if (chart.seriesLabelTimer) {
|
||
|
|
U.clearTimeout(chart.seriesLabelTimer);
|
||
|
|
}
|
||
|
|
// Which series should have labels
|
||
|
|
chart.series.forEach(function (series) {
|
||
|
|
const seriesLabelOptions = series.options.label || {}, label = series.labelBySeries, closest = label && label.closest;
|
||
|
|
if (seriesLabelOptions.enabled &&
|
||
|
|
series.visible &&
|
||
|
|
(series.graph || series.area) &&
|
||
|
|
!series.boosted &&
|
||
|
|
chart.labelSeries) {
|
||
|
|
chart.labelSeries.push(series);
|
||
|
|
if (seriesLabelOptions.minFontSize &&
|
||
|
|
seriesLabelOptions.maxFontSize &&
|
||
|
|
series.yData) {
|
||
|
|
series.sum = series.yData.reduce((pv, cv) => (pv || 0) + (cv || 0), 0);
|
||
|
|
chart.labelSeriesMaxSum = Math.max(chart.labelSeriesMaxSum || 0, series.sum || 0);
|
||
|
|
}
|
||
|
|
// The labels are processing heavy, wait until the animation is
|
||
|
|
// done
|
||
|
|
if (e.type === 'load') {
|
||
|
|
delay = Math.max(delay, animObject(series.options.animation).duration);
|
||
|
|
}
|
||
|
|
// Keep the position updated to the axis while redrawing
|
||
|
|
if (closest) {
|
||
|
|
if (typeof closest[0].plotX !== 'undefined') {
|
||
|
|
label.animate({
|
||
|
|
x: closest[0].plotX + closest[1],
|
||
|
|
y: closest[0].plotY + closest[2]
|
||
|
|
});
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
label.attr({ opacity: 0 });
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
chart.seriesLabelTimer = syncTimeout(function () {
|
||
|
|
if (chart.series && chart.labelSeries) { // #7931, chart destroyed
|
||
|
|
drawSeriesLabels(chart);
|
||
|
|
}
|
||
|
|
}, chart.renderer.forExport || !delay ? 0 : delay);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* General symbol definition for labels with connector.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function symbolConnector(x, y, w, h, options) {
|
||
|
|
const anchorX = options && options.anchorX, anchorY = options && options.anchorY;
|
||
|
|
let path, yOffset, lateral = w / 2;
|
||
|
|
if (isNumber(anchorX) && isNumber(anchorY)) {
|
||
|
|
path = [['M', anchorX, anchorY]];
|
||
|
|
// Prefer 45 deg connectors
|
||
|
|
yOffset = y - anchorY;
|
||
|
|
if (yOffset < 0) {
|
||
|
|
yOffset = -h - yOffset;
|
||
|
|
}
|
||
|
|
if (yOffset < w) {
|
||
|
|
lateral = anchorX < x + (w / 2) ? yOffset : w - yOffset;
|
||
|
|
}
|
||
|
|
// Anchor below label
|
||
|
|
if (anchorY > y + h) {
|
||
|
|
path.push(['L', x + lateral, y + h]);
|
||
|
|
// Anchor above label
|
||
|
|
}
|
||
|
|
else if (anchorY < y) {
|
||
|
|
path.push(['L', x + lateral, y]);
|
||
|
|
// Anchor left of label
|
||
|
|
}
|
||
|
|
else if (anchorX < x) {
|
||
|
|
path.push(['L', x, y + h / 2]);
|
||
|
|
// Anchor right of label
|
||
|
|
}
|
||
|
|
else if (anchorX > x + w) {
|
||
|
|
path.push(['L', x + w, y + h / 2]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return path || [];
|
||
|
|
}
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* Default Export
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
const SeriesLabel = {
|
||
|
|
compose
|
||
|
|
};
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* API Declarations
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
/**
|
||
|
|
* Containing the position of a box that should be avoided by labels.
|
||
|
|
*
|
||
|
|
* @interface Highcharts.LabelIntersectBoxObject
|
||
|
|
*/ /**
|
||
|
|
* @name Highcharts.LabelIntersectBoxObject#bottom
|
||
|
|
* @type {number}
|
||
|
|
*/ /**
|
||
|
|
* @name Highcharts.LabelIntersectBoxObject#left
|
||
|
|
* @type {number}
|
||
|
|
*/ /**
|
||
|
|
* @name Highcharts.LabelIntersectBoxObject#right
|
||
|
|
* @type {number}
|
||
|
|
*/ /**
|
||
|
|
* @name Highcharts.LabelIntersectBoxObject#top
|
||
|
|
* @type {number}
|
||
|
|
*/
|
||
|
|
(''); // Keeps doclets above in JS file
|
||
|
|
|
||
|
|
return SeriesLabel;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'masters/modules/series-label.src.js', [_modules['Core/Globals.js'], _modules['Extensions/SeriesLabel/SeriesLabel.js']], function (Highcharts, SeriesLabel) {
|
||
|
|
|
||
|
|
const G = Highcharts;
|
||
|
|
SeriesLabel.compose(G.Chart, G.SVGRenderer);
|
||
|
|
|
||
|
|
return Highcharts;
|
||
|
|
});
|
||
|
|
}));
|