AW6241 ng-18 adopt ng-openlayers

projects/ng-openlayers/src/lib/coordinate.component.ts

@@ -0,0 +1,80 @@
+import { Component, Optional, OnChanges, Input, SimpleChanges, OnInit } from '@angular/core';
+import { transform } from 'ol/proj';
+import { MapComponent } from './map.component';
+import { GeometryPointComponent } from './geom/geometrypoint.component';
+import { GeometryCircleComponent } from './geom/geometrycircle.component';
+import { ViewComponent } from './view.component';
+import { OverlayComponent } from './overlay.component';
+
+@Component({
+  selector: 'aol-coordinate',
+  template: ` <div class="aol-coordinate"></div> `,
+})
+export class CoordinateComponent implements OnChanges, OnInit {
+  @Input()
+  x: number;
+  @Input()
+  y: number;
+  @Input()
+  srid = 'EPSG:3857';
+
+  private host: any;
+  private mapSrid = 'EPSG:3857';
+
+  constructor(
+    private map: MapComponent,
+    @Optional() viewHost: ViewComponent,
+    @Optional() geometryPointHost: GeometryPointComponent,
+    @Optional() geometryCircleHost: GeometryCircleComponent,
+    @Optional() overlayHost: OverlayComponent
+  ) {
+    // console.log('instancing aol-coordinate');
+    if (geometryPointHost !== null) {
+      this.host = geometryPointHost;
+    } else if (geometryCircleHost !== null) {
+      this.host = geometryCircleHost;
+    } else if (viewHost !== null) {
+      this.host = viewHost;
+    } else if (overlayHost !== null) {
+      this.host = overlayHost;
+    }
+  }
+
+  ngOnInit() {
+    this.map.instance.on('change:view', (e) => this.onMapViewChanged(e));
+    this.mapSrid = this.map.instance.getView().getProjection().getCode();
+    this.transformCoordinates();
+  }
+
+  ngOnChanges(changes: SimpleChanges) {
+    this.transformCoordinates();
+  }
+
+  private onMapViewChanged(event) {
+    this.mapSrid = event.target.get(event.key).getProjection().getCode();
+    this.transformCoordinates();
+  }
+
+  private transformCoordinates() {
+    let transformedCoordinates: number[];
+
+    if (this.srid === this.mapSrid) {
+      transformedCoordinates = [this.x, this.y];
+    } else {
+      transformedCoordinates = transform([this.x, this.y], this.srid, this.mapSrid);
+    }
+
+    switch (this.host.componentType) {
+      case 'geometry-point':
+        this.host.instance.setCoordinates(transformedCoordinates);
+        break;
+      case 'geometry-circle':
+      case 'view':
+        this.host.instance.setCenter(transformedCoordinates);
+        break;
+      case 'overlay':
+        this.host.instance.setPosition(transformedCoordinates);
+        break;
+    }
+  }
+}