341 lines
10 KiB
JavaScript
341 lines
10 KiB
JavaScript
import { GeoMap } from './map.js'
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import MapView from './mapview.js'
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import { EventHandler } from './utils.js'
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import { PIXILayer } from '../../../../src/layers/js/layer.js'
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import Logging from '../../logging.js'
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import { GeoGraphics } from './geographics.js'
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//import { GeoGraphics } from "../pixi/geographics.js"
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/**
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* The GeoLayer is a special PIXILayer, that recognizes other GeoLayers and
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* GeoGraphics. The layer can be adapted to a map and notifies all Geo-Children
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* of the Adaption.
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*/
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export class GeoLayer {
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constructor(displayObject) {
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if (displayObject == null || !(displayObject instanceof PIXI.DisplayObject)) {
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console.error(
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`You need to provide a displayObject to make a ${this.constructor.name} out of it.`,
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displayObject
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)
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return null
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} else {
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this.geographics = []
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displayObject.map = this
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this.displayObject = displayObject
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this.layers = []
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this.pixiAddChild = displayObject.addChild.bind(displayObject)
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displayObject.addChild = (...elements) => {
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elements.forEach(element => {
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if (element instanceof GeoGraphics) {
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this.geographics.push(element)
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this.pixiAddChild(element.graphics)
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} else {
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this.pixiAddChild(element)
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}
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})
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}
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}
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}
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addChild(element) {
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this.displayObject.addChild(element)
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}
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/**
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* Adapts to a map. If the maplayer should adapt to the parent maplayer,
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* no parameter must be specified.
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*/
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adapt(map = null) {
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if (!map) map = this.map
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if (map) {
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this.geographics.forEach(geographic => {
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geographic.adaptTo(map)
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})
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this.layers.forEach(layer => {
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if (layer.adapt) layer.adapt(map)
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})
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} else console.error('There was no map specified.', this)
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}
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// place(geographic) {
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// if (geographic.constructor.name.startsWith('Geo') && geographic.graphics) {
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// // Fix to remove the rollupjs circular dependency
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// //if (geographic instanceof GeoGraphics) {
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// this.geographics.push(geographic)
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// super.place(geographic.graphics)
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// } else super.place(geographic)
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// }
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addLayer(layer) {
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if (layer instanceof GeoLayer || layer instanceof MapLayer) {
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this.layers.push(layer)
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this.displayObject.addChild(layer.displayObject)
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if (this.map) layer.geographics.forEach(geographics => geographics.adaptTo(this.map))
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} else
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console.error('Could not place layer. Only MapLayer and GeoLayers can be child layers of GeoLayers.', layer)
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}
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//GeoLayers have to be children of a map layer,
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// therefore we can recursively get the map.
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get map() {
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return this._mapLayer.map
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}
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get mapLayer() {
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return this._mapLayer ? this._mapLayer : this.parent.mapLayer
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}
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// clone(mapLayerClone) {
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// const opts = {
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// mapLayer: mapLayerClone,
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// map: mapLayerClone.map
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// }
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// let geoLayerClone = new GeoLayer(opts)
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// this.layers.forEach(layer => {
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// let layerClone = layer.clone(opts)
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// if (layerClone) {
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// geoLayerClone.placeLayer(layerClone)
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// }
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// })
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// this.geographics.forEach(geographics => {
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// let clone = geographics.clone()
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// if (clone) {
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// geoLayerClone.place(clone)
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// }
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// })
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// return geoLayerClone
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// }
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}
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export class MapLayer extends GeoLayer {
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constructor(
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scatterContainer,
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displayObject,
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{ onTransform = null, onChange = null, focus = null, zoom = null, viewport = null } = {}
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) {
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super(displayObject)
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let onTransformListeners = [
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() => {
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this.labelVisibility()
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}
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]
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if (onTransform) onTransformListeners.push(onTransform)
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this.transformHandler = new EventHandler('onTransform', {
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listeners: onTransformListeners
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})
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this.scatterContainer = scatterContainer
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this.changeHandler = new EventHandler('onChange', {
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listeners: onChange
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})
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this.mapview = new MapView({
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zoom,
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focus,
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viewport
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})
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this._map = null
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// //TODO Implement error handling here.
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// this.maps = maps
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// if (opts.map) this.placeMap(opts.map)
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this.dynamicElements = new Map()
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}
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labelVisibility() {
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const visibility = this.childrenVisibility
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if (visibility) {
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const zoom = this.mapview.zoom
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const min = visibility.min || 0
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const max = visibility.max || Number.MAX_VALUE
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// TODO
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// Currently I dont know what elemnts was.
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// We just log an error and resolve this on a later point.
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if (this.elements) {
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if (zoom > min && zoom < max) {
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this.elements.forEach(it => (it.visible = true))
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this.elements.forEach(it => {
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const scale = 1 / it.parent.scale.x
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// it.children are poi groups
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// it.children[0] is the poi group of the tübingen poi
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// it.children[0].children are the text containers (not PIXI.Text), about 20 pieces
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if (it.children.length > 0) {
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it.children[0].children.forEach(poi => {
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if (poi.children.length === 1) {
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poi.scale.set(scale, scale)
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}
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})
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}
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})
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} else {
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this.elements.forEach(it => (it.visible = false))
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}
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}else{
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console.error("DEBUG: Elements was not defined.")
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}
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}
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}
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adapt() {
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this.layers.forEach(layer => {
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if (layer.adapt) layer.adapt(this.map)
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})
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}
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// placeLayer(layer) {
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// super.placeLayer(layer)
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// if (layer instanceof GeoLayer && this.map) {
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// layer.adapt(this.map)
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// }
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// }
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transformed(e) {
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this.mapview.transformed(this.map)
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this.transformHandler.call(this)
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}
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clone(container = null) {
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let clone = {}
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for (let name of Object.keys(this.maps)) {
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//console.info(this.maps[name])
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clone[name] = this.maps[name].clone(container)
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}
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//console.info(this.active)
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let mapLayerClone = new MapLayer(this.active, clone, container, {
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name: MapLayer.idx++,
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viewport: this.mapview.viewport,
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focus: this.mapview.focus,
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zoom: this.mapview.zoom
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})
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//mapLayerClone._map = clone['luftbild']
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mapLayerClone.childrenVisibility = this.childrenVisibility
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return mapLayerClone
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}
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/**
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* Changes the map to the specified one, keeping the position and the zoom of the old map.
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*
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* @public
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* @param {GeoMap} map
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* @memberof MapLayer
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*/
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changeMap(
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map /*,
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useScatterAsContainer = true // If set to false, the normal container is used. This is necessary when using submaps and the container need to be a RigidContainer.*/
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) {
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if (map instanceof GeoMap) {
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console.log("Change map to: " , map)
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let oldMap = this.map
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if (oldMap) oldMap.unload()
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this._map = map
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this.map.load()
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this.scatterContainer.addChild(this.map.image)
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console.log(this.map.image.parent)
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map.image.addChild(this.displayObject)
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this.mapview.update(this.map)
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// A geolayer's displayObject is on the parent layer.
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// A maplayer's displayobject is always the child of the map.
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this.adapt()
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this.changeHandler.call(this, map, oldMap)
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//Call transform one time manually.
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this.transformed()
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this.map.onTransform.add(this.transformed.bind(this))
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} else {
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console.error("Could not set map, it's not of type GeoMap.", map)
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}
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/*Logging.log(`Map change: ${key}`)
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if (this.active !== key) {
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if (this.maps.hasOwnProperty(key)) {
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let old = this.map ? this.map : null
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this._map = this.maps[key]
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this._map.name = key
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this.active = key
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let container = useScatterAsContainer ? this.scatterContainer : this.container
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this.map.load(container)
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// Copies all layers.
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this.layers.forEach(layer => {
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if (old) this.map.image.addChild(layer.container)
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})
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this.placeMap(this.map)
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/**
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* TODO: Improve
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*
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* I'm quite sure if I made a design mistake here.
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* In an earlier version I did not need to migrate the
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* layers manually from the map to the next map.
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*
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* I believe the old version was a container next to the
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* map, which got updated on transform.
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*
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* -SO
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*/
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/*
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if (old) old.unload()
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} else {
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let keys = Object.keys(this.maps)
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if (keys.length == 0) console.error('There is no map set for the map layer!')
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else {
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let fallbackMap = keys[0]
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console.error(
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`A map with the key (${key}) does not exists within the mapapp. Fallback to map: ${fallbackMap}.`
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)
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this.changeMap(fallbackMap, {
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useScatterAsContainer
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})
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}
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}
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}*/
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}
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get map() {
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return this._map
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}
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/**
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* This is required for the consistency of georelated layers.
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* The request traverses up to the mapLayer where it then returns
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* the responsible map layer.
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*/
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get mapLayer() {
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return this
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}
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}
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MapLayer.idx = 0
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