javascript - Set a full background color to the canvas in chartjs 2.0 -

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basically question similar 1 asked here how set full length background color each bar in chartjs bar

it has desired jsfiddle link http://jsfiddle.net/x73rhq2y/

but not work chartjs 2.* (i using chart.min.bundle.js v2.1.6)

i trying extend bar chart display multiple stacked bar chart. along need separate out bar chart background.

chart.defaults.groupablebar = chart.helpers.clone(chart.defaults.bar); var helpers = chart.helpers; chart.controllers.groupablebar = chart.controllers.bar.extend({     calculatebarx: function (index, datasetindex) {         // position bars based on stack index         var stackindex = this.getmeta().stackindex;         return chart.controllers.bar.prototype.calculatebarx.apply(this, [index, stackindex]);     },     hideotherstacks: function (datasetindex) {         var meta = this.getmeta();         var stackindex = meta.stackindex;          this.hiddens = [];         (var = 0; < datasetindex; i++) {             var dsmeta = this.chart.getdatasetmeta(i);             if (dsmeta.stackindex !== stackindex) {                 this.hiddens.push(dsmeta.hidden);                 dsmeta.hidden = true;             }         }     },     unhideotherstacks: function (datasetindex) {         var meta = this.getmeta();         var stackindex = meta.stackindex;          (var = 0; < datasetindex; i++) {             var dsmeta = this.chart.getdatasetmeta(i);             if (dsmeta.stackindex !== stackindex) {                 dsmeta.hidden = this.hiddens.unshift();             }         }     },     calculatebary: function (index, datasetindex) {         this.hideotherstacks(datasetindex);         var bary = chart.controllers.bar.prototype.calculatebary.apply(this, [index, datasetindex]);         this.unhideotherstacks(datasetindex);         return bary;     },     calculatebarbase: function (datasetindex, index) {         this.hideotherstacks(datasetindex);         var barbase = chart.controllers.bar.prototype.calculatebarbase.apply(this, [datasetindex, index]);         this.unhideotherstacks(datasetindex);         return barbase;     },     getbarcount: function () {         var stacks = [];         // put stack index in dataset meta         chart.helpers.each(this.chart.data.datasets, function (dataset, datasetindex) {             var meta = this.chart.getdatasetmeta(datasetindex);             if (meta.bar && this.chart.isdatasetvisible(datasetindex)) {                 var stackindex = stacks.indexof(dataset.stack);                 if (stackindex === -1) {                     stackindex = stacks.length;                     stacks.push(dataset.stack);                 }                 meta.stackindex = stackindex;             }         }, this);          this.getmeta().stacks = stacks;         return stacks.length;     },     initialize: function (data) {         debugger;         var self = data;         var originalbuildscale = self.buildscale;         self.buildscale = function () {             originalbuildscale.apply(this, arguments);             debugger;             var ctx = self.chart.ctx;             var scale = self.scale;             var originalscaledraw = self.scale.draw;             var barareawidth = scale.calculatex(1) - scale.calculatex(0);             var barareaheight = scale.endpoint - scale.startpoint;             self.scale.draw = function () {                 originalscaledraw.call(this, arguments);                 scale.xlabels.foreach(function (xlabel, i) {                     ctx.fillstyle = data.labelbackgrounds[i];                     ctx.fillrect(                             scale.calculatex(i - (scale.offsetgridlines ? 0.5 : 0)),                             scale.startpoint,                             barareawidth,                             barareaheight);                     ctx.fill();                 });             };         };         chart.controllers.bar.prototype.initialize.apply(this, arguments);     } });

but since documentation has been updated , not able find solution. data array follows:

var data = {     labels: ["label1","label2","label2","label2",],     labelbackgrounds: ["rgba(120,220,220,0.2)", "rgba(220,120,220,0.2)", "rgba(220,220,120,0.2)", "rgba(120,120,220,0.2)"],     datasets: [         {             label: "pass",             backgroundcolor: "rgba(3,166,120,0.7)",             data: [40,50,30,45],             stack: 1         },         {             label: "fail",             backgroundcolor: "rgba(212,82,84,0.7)",             data: [40,50,30,45],             stack: 1         },         {             label: "not run",             backgroundcolor: "rgba(89,171,227,0.7)",             data: [40,50,30,45],             stack: 1         },         {             label: "pass",             backgroundcolor: "rgba(3,166,120,0.7)",             data: [40,50,30,45],             stack: 2         },         {             label: "fail",             backgroundcolor: "rgba(212,82,84,0.7)",             data: [40,50,30,45],             stack: 2         },         {             label: "not run",             backgroundcolor: "rgba(89,171,227,0.7)",             data: [40,50,30,45],             stack: 2         }     ] };

p.s: had create new question reputation not allows me comment on https://stackoverflow.com/a/31833017/4787971


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