94 lines
2.1 KiB
JavaScript
94 lines
2.1 KiB
JavaScript
import Component from '@ember/component';
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import { computed } from '@ember/object';
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import { assert } from '@ember/debug';
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import { guidFor } from '@ember/object/internals';
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import { once } from '@ember/runloop';
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import d3Shape from 'd3-shape';
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import WindowResizable from 'nomad-ui/mixins/window-resizable';
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import { classNames } from '@ember-decorators/component';
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import classic from 'ember-classic-decorator';
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@classic
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@classNames('chart', 'gauge-chart')
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export default class GaugeChart extends Component.extend(WindowResizable) {
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value = null;
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complement = null;
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total = null;
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chartClass = 'is-info';
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width = 0;
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height = 0;
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@computed('value', 'complement', 'total')
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get percent() {
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assert(
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'Provide complement OR total to GaugeChart, not both.',
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this.complement != null || this.total != null
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);
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if (this.complement != null) {
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return this.value / (this.value + this.complement);
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}
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return this.value / this.total;
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}
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@computed
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get fillId() {
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return `gauge-chart-fill-${guidFor(this)}`;
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}
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@computed
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get maskId() {
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return `gauge-chart-mask-${guidFor(this)}`;
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}
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@computed('width')
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get radius() {
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return this.width / 2;
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}
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weight = 4;
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@computed('radius', 'weight')
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get backgroundArc() {
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const { radius, weight } = this;
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const arc = d3Shape
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.arc()
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.outerRadius(radius)
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.innerRadius(radius - weight)
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.cornerRadius(weight)
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.startAngle(-Math.PI / 2)
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.endAngle(Math.PI / 2);
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return arc();
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}
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@computed('radius', 'weight', 'percent')
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get valueArc() {
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const { radius, weight, percent } = this;
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const arc = d3Shape
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.arc()
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.outerRadius(radius)
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.innerRadius(radius - weight)
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.cornerRadius(weight)
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.startAngle(-Math.PI / 2)
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.endAngle(-Math.PI / 2 + Math.PI * percent);
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return arc();
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}
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didInsertElement() {
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super.didInsertElement(...arguments);
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this.updateDimensions();
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}
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updateDimensions() {
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const width = this.element.querySelector('svg').clientWidth;
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this.setProperties({ width, height: width / 2 });
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}
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windowResizeHandler() {
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once(this, this.updateDimensions);
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}
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}
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