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193
src/org/gestouch/examples/starling/ConflictGesturesExample.as
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| package org.gestouch.examples.starling | ||
| { | ||
| import com.greensock.TweenMax; | ||
| import flash.geom.Matrix; | ||
| import flash.geom.Point; | ||
| import org.gestouch.core.GestureState; | ||
| import org.gestouch.core.IGestureDelegate; | ||
| import org.gestouch.core.Touch; | ||
| import org.gestouch.events.TapGestureEvent; | ||
| import org.gestouch.events.TransformGestureEvent; | ||
| import org.gestouch.extensions.starling.StarlingDisplayObjectAdapter; | ||
| import org.gestouch.gestures.Gesture; | ||
| import org.gestouch.gestures.TapGesture; | ||
| import org.gestouch.gestures.TransformGesture; | ||
| import org.gestouch.utils.GestureUtils; | ||
| import starling.display.DisplayObject; | ||
| import starling.display.Image; | ||
| import starling.display.Sprite; | ||
| import starling.textures.Texture; | ||
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| /** | ||
| * @author Pavel fljot | ||
| */ | ||
| public class ConflictGesturesExample extends StarlingExampleBase implements IGestureDelegate | ||
| { | ||
| [Embed(source="/assets/images/YellowSquare.png")] | ||
| private static const yellowAsset:Class; | ||
| [Embed(source="/assets/images/CyanSquare.png")] | ||
| private static const cyanAsset:Class; | ||
| [Embed(source="/assets/images/MagentaSquare.png")] | ||
| private static const magentaAsset:Class; | ||
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| private var container:Sprite; | ||
| private var containerIsTransforming:Boolean; | ||
| private var innerActiveTransformGesturesCounter:uint; | ||
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| public function ConflictGesturesExample() | ||
| { | ||
| super(); | ||
| } | ||
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| override protected function init():void | ||
| { | ||
| super.init(); | ||
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| container = new Sprite(); | ||
| addChild(container); | ||
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| var freeTransform:TransformGesture = new TransformGesture(new StarlingDisplayObjectAdapter(stage)); | ||
| freeTransform.addEventListener(TransformGestureEvent.GESTURE_TRANSFORM, onTransform, false, 0, true); | ||
| freeTransform.delegate = this; | ||
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| var image:Image; | ||
| image = addImage(Texture.fromBitmap(new yellowAsset())); | ||
| image.x = stage.stageWidth - 3 * image.width >> 1; | ||
| image.y = stage.stageHeight - 3 * image.height >> 1; | ||
| container.addChild(image); | ||
| image = addImage(Texture.fromBitmap(new cyanAsset())); | ||
| image.x = stage.stageWidth - image.width >> 1; | ||
| image.y = stage.stageHeight - image.height >> 1; | ||
| container.addChild(image); | ||
| image = addImage(Texture.fromBitmap(new magentaAsset())); | ||
| image.x = stage.stageWidth + image.width >> 1; | ||
| image.y = stage.stageHeight + image.height >> 1; | ||
| container.addChild(image); | ||
| } | ||
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| private function addImage(texture:Texture):Image | ||
| { | ||
| var image:Image = new Image(texture); | ||
| image.width = image.height = Math.min(stage.stageWidth, stage.stageHeight) / 3; | ||
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| var tap:TapGesture = new TapGesture(new StarlingDisplayObjectAdapter(image)); | ||
| tap.addEventListener(TapGestureEvent.GESTURE_TAP, onTap, false, 0, true); | ||
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| var freeTransform:TransformGesture = new TransformGesture(new StarlingDisplayObjectAdapter(image)); | ||
| freeTransform.addEventListener(TransformGestureEvent.GESTURE_TRANSFORM, onTransform, false, 0, true); | ||
| freeTransform.delegate = this; | ||
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| return image; | ||
| } | ||
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| private function onTransform(event:TransformGestureEvent):void | ||
| { | ||
| var target:DisplayObject = (event.target as Gesture).target as DisplayObject; | ||
| if (target == stage) | ||
| { | ||
| target = container; | ||
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| if (event.gestureState == GestureState.BEGAN) | ||
| { | ||
| containerIsTransforming = true; | ||
| } | ||
| else if (event.gestureState == GestureState.ENDED || event.gestureState == GestureState.CANCELLED) | ||
| { | ||
| containerIsTransforming = false; | ||
| } | ||
| } | ||
| else | ||
| { | ||
| if (event.gestureState == GestureState.BEGAN) | ||
| { | ||
| innerActiveTransformGesturesCounter++; | ||
| } | ||
| else if (event.gestureState == GestureState.ENDED || event.gestureState == GestureState.CANCELLED) | ||
| { | ||
| innerActiveTransformGesturesCounter--; | ||
| } | ||
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| // Recalculate offsets in case some parent is transformed | ||
| if (event.offsetX != 0 || event.offsetY != 0) | ||
| { | ||
| var offset:Point = target.parent.globalToLocal(new Point(event.offsetX, event.offsetY)).subtract(target.parent.globalToLocal(GestureUtils.GLOBAL_ZERO)); | ||
| event.offsetX = offset.x; | ||
| event.offsetY = offset.y; | ||
| } | ||
| } | ||
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| // Panning | ||
| target.x += event.offsetX; | ||
| target.y += event.offsetY; | ||
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| if (event.scaleX != 1 || event.rotation != 0) | ||
| { | ||
| var m:Matrix = target.getTransformationMatrix(target.parent); | ||
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| // Scale and rotation. | ||
| // NB! event.localX and event.stageX actually represent previous | ||
| // location of the centroid (middle point between two fingers so you | ||
| // can easely perform these transformations without any additional transformations. | ||
| var transformPoint:Point = m.transformPoint(new Point(event.localX, event.localY)); | ||
| m.translate(-transformPoint.x, -transformPoint.y); | ||
| m.rotate(event.rotation * GestureUtils.DEGREES_TO_RADIANS); | ||
| m.scale(event.scaleX, event.scaleY); | ||
| m.translate(transformPoint.x, transformPoint.y); | ||
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| target.x = m.tx; | ||
| target.y = m.ty; | ||
| target.rotation = Math.atan2(m.b, m.a); | ||
| target.scaleX = target.scaleY = Math.sqrt(m.a*m.a + m.b*m.b); | ||
| } | ||
| } | ||
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| private function onTap(event:TapGestureEvent):void | ||
| { | ||
| trace("tap"); | ||
| TweenMax.to((event.target as Gesture).target, 0.5, {bezierThrough:[{alpha:0.1}, {alpha:1}]}); | ||
| } | ||
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| public function gestureShouldReceiveTouch(gesture:Gesture, touch:Touch):Boolean | ||
| { | ||
| if (containerIsTransforming && gesture is TransformGesture && container.contains(gesture.target as DisplayObject)) | ||
| { | ||
| // Let the inner transform gestures don't even receive touch | ||
| // if container's transform gesture is in progress | ||
| return false; | ||
| } | ||
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| if (gesture is TransformGesture && gesture.target == stage && innerActiveTransformGesturesCounter > 0) | ||
| { | ||
| // One or more inner squares are currently transforming. | ||
| // To prevent strange offsets we ignore this touch for our stage transform gesture | ||
| return false; | ||
| } | ||
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| // Default behavior | ||
| return true; | ||
| } | ||
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| public function gestureShouldBegin(gesture:Gesture):Boolean | ||
| { | ||
| // Default behavior | ||
| return true; | ||
| } | ||
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| public function gesturesShouldRecognizeSimultaneously(gesture:Gesture, otherGesture:Gesture):Boolean | ||
| { | ||
| // Default behavior | ||
| return false; | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| package org.gestouch.examples.starling | ||
| { | ||
| import flash.display.Sprite; | ||
| import flash.display.StageAlign; | ||
| import flash.display.StageScaleMode; | ||
| import flash.geom.Rectangle; | ||
| import org.gestouch.core.GesturesManager; | ||
| import org.gestouch.core.IGesturesManager; | ||
| import org.gestouch.extensions.starling.StarlingDisplayListAdapter; | ||
| import org.gestouch.extensions.starling.StarlingInputAdapter; | ||
| import starling.core.Starling; | ||
| import starling.display.DisplayObject; | ||
| import starling.events.ResizeEvent; | ||
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| [SWF(backgroundColor="#FFFFFF", frameRate="60", width="640", height="480")] | ||
| /** | ||
| * @author Pavel fljot | ||
| */ | ||
| public class StarlingExample extends Sprite | ||
| { | ||
| private var starling:Starling; | ||
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| public function StarlingExample() | ||
| { | ||
| stage.scaleMode = StageScaleMode.NO_SCALE; | ||
| stage.align = StageAlign.TOP_LEFT; | ||
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| Starling.multitouchEnabled = true; // useful on mobile devices | ||
| Starling.handleLostContext = true; // deactivate on mobile devices (to save memory) | ||
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| starling = new Starling(StarlingRoot, stage); | ||
| starling.enableErrorChecking = false; | ||
| starling.stage.addEventListener(ResizeEvent.RESIZE, starling_resizeHandler); | ||
| starling.start(); | ||
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| var gesturesManager:IGesturesManager = GesturesManager.getInstance(); | ||
| gesturesManager.addDisplayListAdapter(starling.display.DisplayObject, new StarlingDisplayListAdapter()); | ||
| gesturesManager.addInputAdapter(new StarlingInputAdapter(starling)); | ||
| } | ||
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| private function starling_resizeHandler(event:ResizeEvent):void | ||
| { | ||
| var rect:Rectangle = new Rectangle(0, 0, event.width, event.height); | ||
| starling.viewPort = rect; | ||
| starling.stage.stageWidth = rect.width; | ||
| starling.stage.stageHeight = rect.height; | ||
| } | ||
| } | ||
| } |
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