bar-chart-with-labels-widget.component.ts
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///
/// Copyright © 2016-2024 The Thingsboard Authors
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
/// http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///
import {
AfterViewInit,
ChangeDetectorRef,
Component,
ElementRef,
Input,
OnDestroy,
OnInit,
Renderer2,
TemplateRef,
ViewChild,
ViewEncapsulation
} from '@angular/core';
import { WidgetContext } from '@home/models/widget-component.models';
import { backgroundStyle, ComponentStyle, overlayStyle, textStyle } from '@shared/models/widget-settings.models';
import { Observable } from 'rxjs';
import { ImagePipe } from '@shared/pipe/image.pipe';
import { DomSanitizer } from '@angular/platform-browser';
import {
barChartWithLabelsDefaultSettings,
barChartWithLabelsTimeSeriesKeySettings,
barChartWithLabelsTimeSeriesSettings,
BarChartWithLabelsWidgetSettings
} from '@home/components/widget/lib/chart/bar-chart-with-labels-widget.models';
import { TbTimeSeriesChart } from '@home/components/widget/lib/chart/time-series-chart';
import { DataKey } from '@shared/models/widget.models';
@Component({
selector: 'tb-bar-chart-with-labels-widget',
templateUrl: './bar-chart-with-labels-widget.component.html',
styleUrls: ['./bar-chart-with-labels-widget.component.scss'],
encapsulation: ViewEncapsulation.None
})
export class BarChartWithLabelsWidgetComponent implements OnInit, OnDestroy, AfterViewInit {
@ViewChild('chartShape', {static: false})
chartShape: ElementRef<HTMLElement>;
settings: BarChartWithLabelsWidgetSettings;
@Input()
ctx: WidgetContext;
@Input()
widgetTitlePanel: TemplateRef<any>;
showLegend: boolean;
legendClass: string;
backgroundStyle$: Observable<ComponentStyle>;
overlayStyle: ComponentStyle = {};
padding: string;
legendKeys: DataKey[];
legendLabelStyle: ComponentStyle;
disabledLegendLabelStyle: ComponentStyle;
private timeSeriesChart: TbTimeSeriesChart;
constructor(private imagePipe: ImagePipe,
private sanitizer: DomSanitizer,
private renderer: Renderer2,
private cd: ChangeDetectorRef) {
}
ngOnInit(): void {
this.ctx.$scope.barChartWidget = this;
this.settings = {...barChartWithLabelsDefaultSettings, ...this.ctx.settings};
this.backgroundStyle$ = backgroundStyle(this.settings.background, this.imagePipe, this.sanitizer);
this.overlayStyle = overlayStyle(this.settings.background.overlay);
this.padding = this.settings.background.overlay.enabled ? undefined : this.settings.padding;
this.showLegend = this.settings.showLegend;
if (this.showLegend) {
this.legendKeys = [];
this.legendClass = `legend-${this.settings.legendPosition}`;
this.legendLabelStyle = textStyle(this.settings.legendLabelFont);
this.disabledLegendLabelStyle = textStyle(this.settings.legendLabelFont);
this.legendLabelStyle.color = this.settings.legendLabelColor;
}
const barSettings = barChartWithLabelsTimeSeriesKeySettings(this.settings, this.ctx.decimals);
for (const datasource of this.ctx.datasources) {
const dataKeys = datasource.dataKeys;
for (const dataKey of dataKeys) {
dataKey.settings = barSettings;
if (this.showLegend) {
this.legendKeys.push(dataKey);
}
}
}
}
ngAfterViewInit() {
const settings = barChartWithLabelsTimeSeriesSettings(this.settings);
this.timeSeriesChart = new TbTimeSeriesChart(this.ctx, settings, this.chartShape.nativeElement, this.renderer);
}
ngOnDestroy() {
if (this.timeSeriesChart) {
this.timeSeriesChart.destroy();
}
}
public onInit() {
const borderRadius = this.ctx.$widgetElement.css('borderRadius');
this.overlayStyle = {...this.overlayStyle, ...{borderRadius}};
this.cd.detectChanges();
}
public onDataUpdated() {
if (this.timeSeriesChart) {
this.timeSeriesChart.update();
}
}
public onLegendKeyEnter(key: DataKey) {
this.timeSeriesChart.keyEnter(key);
}
public onLegendKeyLeave(key: DataKey) {
this.timeSeriesChart.keyLeave(key);
}
public toggleLegendKey(key: DataKey) {
this.timeSeriesChart.toggleKey(key);
}
}