https://www.visiterouen.com/app/dist/rouen/addons/woody-library/st…/es-modules/Core/Legend/LegendSymbol.js

1/* *
2 *
3 *  (c) 2010-2024 Torstein Honsi
4 *
5 *  License: www.highcharts.com/license
6 *
7 *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
8 *
9 * */
10'use strict';
11import U from '../Utilities.js';
12const { extend, merge, pick } = U;
13/* *
14 *
15 *  Namespace
16 *
17 * */
18var LegendSymbol;
19(function (LegendSymbol) {
20    /* *
21    *
22    *  Functions
23    *
24    * */
25    /**
26     * Draw a line, a point marker and an area in the legend.
27     *
28     * @private
29     * @function Highcharts.LegendSymbolMixin.areaMarker
30     *
31     * @param {Highcharts.Legend} legend
32     * The legend object.
33     */
34    function areaMarker(legend, item) {
35        lineMarker.call(this, legend, item, true);
36    }
37    LegendSymbol.areaMarker = areaMarker;
38    /**
39     * Draw a line and a point marker in the legend.
40     *
41     * @private
42     * @function Highcharts.LegendSymbolMixin.lineMarker
43     *
44     * @param {Highcharts.Legend} legend
45     * The legend object.
46     */
47    function lineMarker(legend, item, hasArea) {
48        const legendItem = this.legendItem = this.legendItem || {}, { chart, options } = this, { baseline = 0, symbolWidth, symbolHeight } = legend, symbol = this.symbol || 'circle', generalRadius = symbolHeight / 2, renderer = chart.renderer, legendItemGroup = legendItem.group, verticalCenter = baseline - Math.round((legend.fontMetrics?.b || symbolHeight) *
49            // Render line and marker slightly higher to make room for the
50            // area
51            (hasArea ? 0.4 : 0.3)), attr = {};
52        let legendSymbol, markerOptions = options.marker, lineSizer = 0;
53        // Draw the line
54        if (!chart.styledMode) {
55            attr['stroke-width'] = Math.min(options.lineWidth || 0, 24);
56            if (options.dashStyle) {
57                attr.dashstyle = options.dashStyle;
58            }
59            else if (options.linecap !== 'square') {
60                attr['stroke-linecap'] = 'round';
61            }
62        }
63        legendItem.line = renderer
64            .path()
65            .addClass('highcharts-graph')
66            .attr(attr)
67            .add(legendItemGroup);
68        if (hasArea) {
69            legendItem.area = renderer
70                .path()
71                .addClass('highcharts-area')
72                .add(legendItemGroup);
73        }
74        if (attr['stroke-linecap']) {
75            lineSizer = Math.min(legendItem.line.strokeWidth(), symbolWidth) / 2;
76        }
77        if (symbolWidth) {
78            const d = [
79                ['M', lineSizer, verticalCenter],
80                ['L', symbolWidth - lineSizer, verticalCenter]
81            ];
82            legendItem.line.attr({ d });
83            legendItem.area?.attr({
84                d: [
85                    ...d,
86                    ['L', symbolWidth - lineSizer, baseline],
87                    ['L', lineSizer, baseline]
88                ]
89            });
90        }
91        // Draw the marker
92        if (markerOptions && markerOptions.enabled !== false && symbolWidth) {
93            // Do not allow the marker to be larger than the symbolHeight
94            let radius = Math.min(pick(markerOptions.radius, generalRadius), generalRadius);
95            // Restrict symbol markers size
96            if (symbol.indexOf('url') === 0) {
97                markerOptions = merge(markerOptions, {
98                    width: symbolHeight,
99                    height: symbolHeight
100                });
101                radius = 0;
102            }
103            legendItem.symbol = legendSymbol = renderer
104                .symbol(symbol, (symbolWidth / 2) - radius, verticalCenter - radius, 2 * radius, 2 * radius, extend({ context: 'legend' }, markerOptions))
105                .addClass('highcharts-point')
106                .add(legendItemGroup);
107            legendSymbol.isMarker = true;
108        }
109    }
110    LegendSymbol.lineMarker = lineMarker;
111    /**
112     * Get the series' symbol in the legend.
113     *
114     * This method should be overridable to create custom symbols through
115     * Highcharts.seriesTypes[type].prototype.drawLegendSymbol.
116     *
117     * @private
118     * @function Highcharts.LegendSymbolMixin.rectangle
119     *
120     * @param {Highcharts.Legend} legend
121     * The legend object
122     *
123     * @param {Highcharts.Point|Highcharts.Series} item
124     * The series (this) or point
125     */
126    function rectangle(legend, item) {
127        const legendItem = item.legendItem || {}, options = legend.options, symbolHeight = legend.symbolHeight, square = options.squareSymbol, symbolWi