45 lines
1.7 KiB
TypeScript
45 lines
1.7 KiB
TypeScript
|
import TileHierarchy from "./TiledFeatureSource/TileHierarchy";
|
||
|
import FeatureSource, {FeatureSourceForLayer, Tiled} from "./FeatureSource";
|
||
|
import {UIEventSource} from "../UIEventSource";
|
||
|
import FilteredLayer from "../../Models/FilteredLayer";
|
||
|
import FeatureSourceMerger from "./Sources/FeatureSourceMerger";
|
||
|
import {BBox} from "../GeoOperations";
|
||
|
import {Utils} from "../../Utils";
|
||
|
|
||
|
export class TileHierarchyMerger implements TileHierarchy<FeatureSourceForLayer & Tiled> {
|
||
|
public readonly loadedTiles: Map<number, FeatureSourceForLayer & Tiled> = new Map<number, FeatureSourceForLayer & Tiled>();
|
||
|
private readonly sources: Map<number, UIEventSource<FeatureSource[]>> = new Map<number, UIEventSource<FeatureSource[]>>();
|
||
|
|
||
|
public readonly layer: FilteredLayer;
|
||
|
private _handleTile: (src: FeatureSourceForLayer, index: number) => void;
|
||
|
|
||
|
constructor(layer: FilteredLayer, handleTile: (src: FeatureSourceForLayer, index: number) => void) {
|
||
|
this.layer = layer;
|
||
|
this._handleTile = handleTile;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Add another feature source for the given tile.
|
||
|
* Entries for this tile will be merged
|
||
|
* @param src
|
||
|
* @param index
|
||
|
*/
|
||
|
public registerTile(src: FeatureSource, index: number) {
|
||
|
|
||
|
if (this.sources.has(index)) {
|
||
|
const sources = this.sources.get(index)
|
||
|
sources.data.push(src)
|
||
|
sources.ping()
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
// We have to setup
|
||
|
const sources = new UIEventSource<FeatureSource[]>([src])
|
||
|
this.sources.set(index, sources)
|
||
|
const merger = new FeatureSourceMerger(this.layer, index, BBox.fromTile(...Utils.tile_from_index(index)), sources)
|
||
|
this.loadedTiles.set(index, merger)
|
||
|
this._handleTile(merger, index)
|
||
|
}
|
||
|
|
||
|
|
||
|
}
|