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83 lines
2.6 KiB
83 lines
2.6 KiB
1 year ago
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/**
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* Represents map legend.
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* @constructor
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* @param {Object} params Configuration parameters.
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* @param {String} params.cssClass Additional CSS class to apply to legend element.
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* @param {Boolean} params.vertical If <code>true</code> legend will be rendered as vertical.
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* @param {String} params.title Legend title.
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* @param {Function} params.labelRender Method to convert series values to legend labels.
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*/
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jvm.Legend = function(params) {
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this.params = params || {};
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this.map = this.params.map;
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this.series = this.params.series;
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this.body = jvm.$('<div/>');
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this.body.addClass('jvectormap-legend');
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if (this.params.cssClass) {
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this.body.addClass(this.params.cssClass);
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}
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if (params.vertical) {
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this.map.legendCntVertical.append( this.body );
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} else {
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this.map.legendCntHorizontal.append( this.body );
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}
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this.render();
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}
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jvm.Legend.prototype.render = function(){
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var ticks = this.series.scale.getTicks(),
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i,
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inner = jvm.$('<div/>').addClass('jvectormap-legend-inner'),
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tick,
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sample,
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label;
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this.body.html('');
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if (this.params.title) {
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this.body.append(
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jvm.$('<div/>').addClass('jvectormap-legend-title').html(this.params.title)
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);
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}
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this.body.append(inner);
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for (i = 0; i < ticks.length; i++) {
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tick = jvm.$('<div/>').addClass('jvectormap-legend-tick');
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sample = jvm.$('<div/>').addClass('jvectormap-legend-tick-sample');
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switch (this.series.params.attribute) {
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case 'fill':
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if (jvm.isImageUrl(ticks[i].value)) {
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sample.css('background', 'url('+ticks[i].value+')');
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} else {
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sample.css('background', ticks[i].value);
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}
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break;
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case 'stroke':
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sample.css('background', ticks[i].value);
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break;
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case 'image':
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sample.css('background', 'url('+ticks[i].value+') no-repeat center center');
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break;
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case 'r':
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jvm.$('<div/>').css({
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'border-radius': ticks[i].value,
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border: this.map.params.markerStyle.initial['stroke-width']+'px '+
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this.map.params.markerStyle.initial['stroke']+' solid',
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width: ticks[i].value * 2 + 'px',
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height: ticks[i].value * 2 + 'px',
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background: this.map.params.markerStyle.initial['fill']
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}).appendTo(sample);
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break;
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}
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tick.append( sample );
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label = ticks[i].label;
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if (this.params.labelRender) {
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label = this.params.labelRender(label);
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}
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tick.append( jvm.$('<div>'+label+' </div>').addClass('jvectormap-legend-tick-text') );
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inner.append(tick);
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}
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inner.append( jvm.$('<div/>').css('clear', 'both') );
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}
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