@doegis/core
Version:
DOE GIS API
3 lines (1 loc) • 3.59 kB
JavaScript
import t from"../../../../../core/Evented.js";import{isSome as e}from"../../../../../core/maybe.js";import{DECLUTTER_BUDGET as i,FADE_DURATION as s}from"./config.js";import{VTLUniqueSymbol as o}from"./core.js";import{CollisionJob as r}from"./jobs.js";import{SymbolDeclutterer as l}from"./SymbolDeclutterer.js";import{SymbolRepository as a}from"./SymbolRepository.js";import{writeOpacityToBuffers as h}from"./util.js";import{Visibility as c}from"../style/StyleDefinition.js";const n=.5,_=1e-6;class m extends t{constructor(t,e){super(),this.styleRepository=t,this._tileToHandle=new Map,this._viewState={scale:0,rotation:0,center:[0,0],size:[0,0]},this._declutterViewState={scale:0,rotation:0,center:[0,0],size:[0,0]},this._completed=!1,this._symbolRepository=new a(4096,e,(()=>new o)),this._symbolDeclutterer=new l(e,this._symbolRepository,((t,e,i)=>new r(t,e,i,this.styleRepository,this._zoom,this._viewState.rotation)),((t,e)=>{t.allSymbolsFadingOut=!0,t.lastOpacityUpdate=e,h(t,e,!0),t.decluttered=!0,t.requestRender()}),((t,e)=>this.styleRepository.getStyleLayerByUID(t.styleLayerUID).z-this.styleRepository.getStyleLayerByUID(e.styleLayerUID).z),(t=>{const e=this.styleRepository.getStyleLayerByUID(t);if(this._zoom+_<e.minzoom||this._zoom-_>=e.maxzoom)return!1;const i=e.getLayoutProperty("visibility");return!i||i.getValue()!==c.NONE}))}addTile(t){t.decluttered=!1,this._tileToHandle.set(t,t.on("symbols-changed",(()=>{this._symbolRepository.add(t),this.restartDeclutter()}))),this._symbolRepository.add(t),this.restartDeclutter()}removeTile(t){const e=this._tileToHandle.get(t);e&&(this._symbolRepository.removeTile(t),this.restartDeclutter(),e.remove(),this._tileToHandle.delete(t))}update(t,e){return this._zoom=t,this._viewState={scale:e.scale,rotation:e.rotation,center:[e.center[0],e.center[1]],size:[e.size[0],e.size[1]]},this._continueDeclutter(),this._completed}restartDeclutter(){this._completed=!1,this._symbolDeclutterer.restart(),this._notifyUnstable()}clear(){this._completed=!1,this._symbolRepository=null,this._symbolDeclutterer.restart(),this._tileToHandle.forEach((t=>t.remove())),this._tileToHandle.clear()}get stale(){return this._zoom!==this._declutterZoom||this._viewState.size[0]!==this._declutterViewState.size[0]||this._viewState.size[1]!==this._declutterViewState.size[1]||this._viewState.scale!==this._declutterViewState.scale||this._viewState.rotation!==this._declutterViewState.rotation}deleteStyleLayers(t){this._symbolRepository.deleteStyleLayers(t)}_continueDeclutter(){this._completed&&!this.stale||(this._symbolDeclutterer.running||(this._declutterZoom=this._zoom,this._declutterViewState.center[0]=this._viewState.center[0],this._declutterViewState.center[1]=this._viewState.center[1],this._declutterViewState.rotation=this._viewState.rotation,this._declutterViewState.scale=this._viewState.scale,this._declutterViewState.size[0]=this._viewState.size[0],this._declutterViewState.size[1]=this._viewState.size[1],this._symbolDeclutterer.restart()),this._symbolDeclutterer.setScreenSize(this._viewState.size[0],this._viewState.size[1]),this._completed=this._symbolDeclutterer.continue(i),this._completed&&this._scheduleNotifyStable())}_scheduleNotifyStable(){e(this._stableNotificationHandle)&&clearTimeout(this._stableNotificationHandle),this._stableNotificationHandle=setTimeout((()=>{this._stableNotificationHandle=null,this.emit("fade-complete")}),(1+n)*s)}_notifyUnstable(){e(this._stableNotificationHandle)&&(clearTimeout(this._stableNotificationHandle),this._stableNotificationHandle=null),this.emit("fade-start")}}export{m as SymbolFader};