src/charts_pie.js
Scoped.define("module:ChartJS.Pie", [
"module:ChartJS",
"base:Strings"
], function (ChartsElem, Strings, scoped) {
var Cls = ChartsElem.extend({scoped: scoped}, {
create : function() {
this._init("pie");
var chart = new Chart(this.getCanvas(), this.get("chartobj"));
this.set("chart", chart);
},
_getColors: function() {
if (this.get("randomcolors")) {
var chardatalength = this.get("chartdata")[0].data.length;
var colors = this.__getRandomColors(chardatalength);
var backgroundColors = [];
var lineColors = [];
colors.forEach(function(color, index) {
var bgColor = "rgba(" + color[0] + ", " + color[1] + ", " + color[2] + ", 0.2)";
backgroundColors.push(bgColor);
});
return {"backgroundColors" : backgroundColors, "lineColors": lineColors};
}
},
_addRandomColors: function(dataset) {
var colors = this._getColors();
if (!dataset.backgroundColor)
dataset.backgroundColor = colors.backgroundColors;
return dataset;
}
});
Cls.register("ba-chart-pie");
return Cls;
});