Aw5739 Add ngx openlayers

projects/ngx-openlayers/src/lib/sources/imagearcgisrest.component.ts

@@ -0,0 +1,62 @@
+import {
+  Component,
+  EventEmitter,
+  forwardRef,
+  Host,
+  Input,
+  OnChanges,
+  OnInit,
+  Output,
+  SimpleChanges,
+} from '@angular/core';
+import { LoadFunction } from 'ol/Image';
+import { ProjectionLike } from 'ol/proj';
+import { ImageArcGISRest } from 'ol/source';
+import { ImageSourceEvent } from 'ol/source/Image';
+import { AttributionLike } from 'ol/source/Source';
+import { LayerImageComponent } from '../layers/layerimage.component';
+import { SourceComponent } from './source.component';
+
+@Component({
+  selector: 'aol-source-imagearcgisrest',
+  template: ` <ng-content></ng-content> `,
+  providers: [{ provide: SourceComponent, useExisting: forwardRef(() => SourceImageArcGISRestComponent) }],
+})
+export class SourceImageArcGISRestComponent extends SourceComponent implements OnInit, OnChanges {
+  @Input() projection: ProjectionLike | string;
+  @Input() url: string;
+  @Input() attributions: AttributionLike[];
+  @Input() crossOrigin?: string;
+  @Input() imageLoadFunction?: LoadFunction;
+  @Input() params?: { [k: string]: any };
+  @Input() ratio = 1.5;
+  @Input() resolutions?: number[];
+  @Input() wrapX?: boolean;
+
+  @Output()
+  imageLoadStart = new EventEmitter<ImageSourceEvent>();
+  @Output()
+  imageLoadEnd = new EventEmitter<ImageSourceEvent>();
+  @Output()
+  imageLoadError = new EventEmitter<ImageSourceEvent>();
+
+  instance: ImageArcGISRest;
+
+  constructor(@Host() layer: LayerImageComponent) {
+    super(layer);
+  }
+
+  ngOnInit() {
+    this.instance = new ImageArcGISRest(this);
+    this.host.instance.setSource(this.instance);
+    this.instance.on('imageloadstart', (event: ImageSourceEvent) => this.imageLoadStart.emit(event));
+    this.instance.on('imageloadend', (event: ImageSourceEvent) => this.imageLoadEnd.emit(event));
+    this.instance.on('imageloaderror', (event: ImageSourceEvent) => this.imageLoadError.emit(event));
+  }
+
+  ngOnChanges(changes: SimpleChanges) {
+    if (this.instance && changes.hasOwnProperty('params')) {
+      this.instance.updateParams(this.params);
+    }
+  }
+}