Reverting getBounds to bound to avoid excessive loading of tiles.

lib/pixi/deepzoom/image.js

@@ -635,7 +635,7 @@ export class DeepZoomImage extends PIXI.Container {
     }
 
     worldBounds() {
-        let viewBounds = this.app.scene.getBounds()
+        let viewBounds = this.app.scene.bounds // UO: Never use getBounds()
         // Using getBounds extends visible scope after loading tiles and leads
         // to excessive loading
         if (this.world != null) {
@@ -1039,7 +1039,7 @@ export class DeepZoomImage extends PIXI.Container {
             this.ensureTiles(this.currentLevel, event.about)
             return
         }
-        
+
         let level = this.levelForScale(event.scale)
         let newLevel = Math.max(level, this.minimumLevel)
         if (newLevel != this.currentLevel) {
@@ -1076,15 +1076,12 @@ export class DeepZoomImage extends PIXI.Container {
    */
     deactivate() {
         this.destroyAllTiles()
-        Object.keys(this.tileLayers).forEach(key => {
-            this.destroyTiles(key)
-        })
         this.tileContainer.destroy({ children: true })
         printTileCacheInfos()
     }
 
     throwFinished() {
-        console.log("throwFinished")
+        //console.log("throwFinished")
         let key = this.currentLevel.toString()
         let currentTiles = this.tileLayers[key]
         if (typeof currentTiles == 'undefined') {

lib/pixi/deepzoom/tile.js

@@ -143,14 +143,14 @@ export default class Tile extends PIXI.Sprite {
         let count = this.unregister()
 
         if (keepTextures > 0) {
-            keptTextures.push({ url: this.url, texture: this.texture})
+            keptTextures.push({ url: this.url, texture: this.texture })
 
             let opts = { children: true, texture: false, baseTexture: false }
             if (debug) console.log("Tile.destroy", registeredTiles.size, opts)
             super.destroy(opts)
 
-            while(keptTextures.length > keepTextures) {
-                let {url, texture} = keptTextures.shift() 
+            while (keptTextures.length > keepTextures) {
+                let { url, texture } = keptTextures.shift()
                 if (Tile.isObsolete(url)) {
                     texture.destroy(true) // Destroy base as well
                     if (debug) console.log("Destroying texture and baseTexture", url)

package.json

@@ -1,6 +1,6 @@
 {
     "name": "iwmlib",
-    "version": "1.0.10",
+    "version": "1.0.11",
     "description": "An Open Source library for multi-touch, WebGL powered applications.",
     "main": "index.js",
     "directories": {