primeng
Version:
[](https://opensource.org/licenses/MIT) [](https://badge.fury.io/js/primeng) [ • 3.57 kB
JavaScript
import { EventEmitter, Component, ChangeDetectionStrategy, ViewEncapsulation, ElementRef, Input, Output, NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import * as Chart from 'chart.js';
class UIChart {
constructor(el) {
this.el = el;
this.plugins = [];
this.responsive = true;
this.onDataSelect = new EventEmitter();
this._options = {};
}
get data() {
return this._data;
}
set data(val) {
this._data = val;
this.reinit();
}
get options() {
return this._options;
}
set options(val) {
this._options = val;
this.reinit();
}
ngAfterViewInit() {
this.initChart();
this.initialized = true;
}
onCanvasClick(event) {
if (this.chart) {
let element = this.chart.getElementAtEvent(event);
let dataset = this.chart.getDatasetAtEvent(event);
if (element && element[0] && dataset) {
this.onDataSelect.emit({ originalEvent: event, element: element[0], dataset: dataset });
}
}
}
initChart() {
let opts = this.options || {};
opts.responsive = this.responsive;
// allows chart to resize in responsive mode
if (opts.responsive && (this.height || this.width)) {
opts.maintainAspectRatio = false;
}
this.chart = new Chart(this.el.nativeElement.children[0].children[0], {
type: this.type,
data: this.data,
options: this.options,
plugins: this.plugins
});
}
getCanvas() {
return this.el.nativeElement.children[0].children[0];
}
getBase64Image() {
return this.chart.toBase64Image();
}
generateLegend() {
if (this.chart) {
return this.chart.generateLegend();
}
}
refresh() {
if (this.chart) {
this.chart.update();
}
}
reinit() {
if (this.chart) {
this.chart.destroy();
this.initChart();
}
}
ngOnDestroy() {
if (this.chart) {
this.chart.destroy();
this.initialized = false;
this.chart = null;
}
}
}
UIChart.decorators = [
{ type: Component, args: [{
selector: 'p-chart',
template: `
<div style="position:relative" [style.width]="responsive && !width ? null : width" [style.height]="responsive && !height ? null : height">
<canvas [attr.width]="responsive && !width ? null : width" [attr.height]="responsive && !height ? null : height" (click)="onCanvasClick($event)"></canvas>
</div>
`,
changeDetection: ChangeDetectionStrategy.OnPush,
encapsulation: ViewEncapsulation.None
},] }
];
UIChart.ctorParameters = () => [
{ type: ElementRef }
];
UIChart.propDecorators = {
type: [{ type: Input }],
plugins: [{ type: Input }],
width: [{ type: Input }],
height: [{ type: Input }],
responsive: [{ type: Input }],
onDataSelect: [{ type: Output }],
data: [{ type: Input }],
options: [{ type: Input }]
};
class ChartModule {
}
ChartModule.decorators = [
{ type: NgModule, args: [{
imports: [CommonModule],
exports: [UIChart],
declarations: [UIChart]
},] }
];
/**
* Generated bundle index. Do not edit.
*/
export { ChartModule, UIChart };
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