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forked from: CoverFlowもどきテスト FP10版

...
@author ...
// forked from mtok's CoverFlowもどきテスト FP10版
// forked from mtok's flash on 2009-2-3
package  
{
    import flash.display.Sprite;
    import flash.display.StageScaleMode;
    import flash.display.StageAlign;
    import flash.events.Event;
    import flash.events.MouseEvent;
    import flash.geom.Matrix3D;
    import flash.geom.PerspectiveProjection;
    import flash.geom.Point;
    import flash.geom.Vector3D;
    import flash.text.TextField;
    import flash.text.TextFieldAutoSize;
    import flash.text.TextFormat;
    import flash.display.BlendMode;
    [SWF(width="465", height="465", backgroundColor="0x000000")]
    /**
     * ...
     * @author ...
     */
    public class Prototype002 extends Sprite
    {
        private var container:Sprite;
        private var numSlide:int = 9;
        private var selectedSlide:CoverFlowSlide;
        private var slides:Array;
        private var slideGap:Number = 50;
        private var sortBuffer:Array;
    
        public function Prototype002() 
        {
            addEventListener(Event.ADDED_TO_STAGE, addedToStage);
        }
        
        private function addedToStage(e:Event):void 
        {
            //stage setup
            stage.scaleMode = StageScaleMode.NO_SCALE;
            stage.align = StageAlign.LEFT;
            stage.addEventListener(Event.RESIZE, resizeHandler);
            

            container = new Sprite();
            sortBuffer = new Array();
            slides = new Array();
            addChild(container);

            
            var i:int;
            var sprite:Sprite;
            for (i = 0; i < numSlide; i++) {
                sprite = createSprite(100, 100);
                sprite = CoverFlowSlide.createSlide(sprite);
                sprite.addEventListener(Event.SELECT, slideSelectHandler);
                container.addChild(sprite);
                sprite.x = i *  slideGap;
                sprite.z = 0;
                //container.graphics.beginFill(0x00ff00);
                //container.graphics.drawCircle(sprite.x, 0, 3);
                //container.graphics.endFill();

                slides.push(sprite);
                sortBuffer.push(new SortItem(sprite, 0));
            }
            container.y = (stage.stageHeight - sprite.height) * 0.5 + sprite.height * 0.125;
            
            selectedSlide = container.getChildAt(int(numSlide * 0.5)) as CoverFlowSlide;
            
            addEventListener(Event.ENTER_FRAME, enterFrameHandler);

            // perspective setup
            resizeHandler();
        }
        
        private function resizeHandler(e:Event=null):void 
        {
            var psp:PerspectiveProjection = new PerspectiveProjection();
            psp.fieldOfView = 45;
            psp.projectionCenter = new Point(stage.stageWidth*0.5, container.y + 25);
            this.transform.perspectiveProjection = psp;            
        }
        
        private function slideSelectHandler(e:Event):void 
        {
            var s:CoverFlowSlide = e.target as CoverFlowSlide;
            selectedSlide = s;
        }
        
        private function enterFrameHandler(e:Event):void 
        {
            var center:Point = new Point(stage.stageWidth * .5, stage.stageHeight * .5);
            centering(center);

            var i:int;
            var slide:CoverFlowSlide;
            var tmp:Number;
            var len:int = slides.length;
            
            var offset:Number = 0;
            for ( i = 0; i < len; i++) {
                slide = slides[i] as CoverFlowSlide;
                offset = updateLayouts(slide, center, offset);
            }
            sortSlides(center);
        }
        private function updateLayouts(slide:CoverFlowSlide, center:Point, offset:Number):Number {
            var range:Number = 75;
            var p:Point;
            p = slide.localToGlobal(new Point(0, 0));
            p = this.globalToLocal(p);
            var dx:Number = center.x - p.x;
            var angle:Number = 75;
            if (dx > range) {
                dx = range;
                angle = -angle;
                
            } else if (dx < -range) {
                dx = -range;
                angle = angle;
            }else {
                angle = (dx != 0) ? -angle * dx / range : 0;
            }
            
            var m1:Matrix3D = slide.transform.matrix3D;
            var m2:Matrix3D = new Matrix3D();
            m2.appendRotation(angle, Vector3D.Y_AXIS);
            m2.appendTranslation(m1.position.x, m1.position.y, m1.position.z);
            slide.transform.matrix3D = m2;
            
            slide.z = -150 * (range - Math.abs(dx)) / range;
            
            var index:int = slides.indexOf(slide);
            dx = center.x - (container.x + index * slideGap);
            var d:Number;
            if ( dx * dx > (30*30)) {
                d = 30 * dx / Math.abs(dx);
            } else {
                d = 30 * Math.sin(Math.PI * dx / 60); //しょうがないのでsinでごまかした。
            }
            slide.x = index * slideGap - d;
            return slide.x;
        }

        private function sortSlides(center:Point):void {
            var p:Point;
            var len:int = sortBuffer.length;
            var i:int;
            var item:SortItem;
            var slide:CoverFlowSlide;
            var dx:Number;
            
            for ( i = 0; i < len; i++) {
                item = sortBuffer[i] as SortItem;
                slide = item.data as CoverFlowSlide;                
                p = slide.localToGlobal(new Point(0, 0));
                p = globalToLocal(p);

                dx = p.x - center.x;
                item.value = dx*dx;
            }
            sortBuffer.sortOn("value", Array.DESCENDING | Array.NUMERIC);
            for (i = 0; i < len; i++) {
                item = sortBuffer[i] as SortItem;
                container.swapChildren(item.data, container.getChildAt(i));
            }
        }
        private function centering(center:Point):void {
            var slide:CoverFlowSlide = selectedSlide;
            var index:int = slides.indexOf(slide);
            var pos:Number = index * slideGap;
            var delta:Number = center.x - (container.x +  pos);
            var absDelta:Number = Math.abs(delta);
            if (absDelta < 1) {
                //dispatchEvent();
                return;
            }
            var maxSpeed:Number = 30;
            var scroll:Number = 0.2 * (delta);
            if (scroll > maxSpeed ) {
                scroll = maxSpeed;
            }
            if (scroll < -maxSpeed) {
                scroll = -maxSpeed;
            }
            container.x += scroll;
        }


        private function createSprite(w:Number, h:Number):Sprite {
            var sp:Sprite = new Sprite();
            var a:Number = 1;
            sp.graphics.beginFill(0x0000cc, a);
            sp.graphics.drawRect( 0, 0, w, h);
            sp.graphics.endFill();

            sp.graphics.beginFill(0xffffff, a);
            sp.graphics.drawCircle( 50, 50, 45);
            sp.graphics.endFill();

            sp.graphics.beginFill(0x0000cc, a);
            sp.graphics.drawCircle( 50, 50, 30);
            sp.graphics.endFill();
            
            return sp;
        }

    }
}

import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.DisplayObject;
import flash.display.IBitmapDrawable;
import flash.display.Shape;
import flash.display.Sprite;
import flash.display.GradientType;
import flash.display.BlendMode;
import flash.events.MouseEvent;
import flash.geom.Matrix;
import flash.geom.Rectangle;
import flash.events.Event;
internal class CoverFlowSlide extends Sprite {
    private var reflection:Bitmap;
    private var space:Number = 0;
    private var bgColor:uint;
    public function CoverFlowSlide() {
        reflection = new Bitmap();
        addChild(reflection);
    }
    public static function createSlide(d:DisplayObject):CoverFlowSlide {
        var slide:CoverFlowSlide = new CoverFlowSlide();
        slide.addEventListener(MouseEvent.CLICK, slide.clickHandler);
        slide.drawReflection(d);
        return slide;
    }
    
    private function clickHandler(e:MouseEvent):void 
    {
        trace('click');
        dispatchEvent(new Event(Event.SELECT));
    }
    public function drawReflection(d:DisplayObject):void {
        if (reflection.bitmapData) {
            reflection.bitmapData.dispose();
        }
        reflection.bitmapData = new BitmapData(d.width, d.height, true, 0x00000000);
        
        var mat:Matrix = new Matrix();
        mat.d = -1;
        mat.ty = d.height;
        reflection.bitmapData.draw(d, mat);

        mat.createGradientBox(d.width, d.height, -Math.PI/2);

        var grad:Shape = new Shape();
        grad.graphics.beginGradientFill(GradientType.LINEAR, [bgColor, bgColor], [1, 0.5], [62, 255], mat);
        grad.graphics.drawRect(0, 0, d.width, d.height);
        grad.graphics.endFill();
        reflection.bitmapData.draw(grad, null, null, BlendMode.NORMAL);
        
        addChild(d);
        d.x = reflection.x = -d.width * 0.5;
        d.y -= space * 0.5;
        reflection.y = d.height + space * 0.5;
    }
    
}

internal class SortItem {
    public var value:Number;
    public var data:*;
    public function SortItem(data:*, value:Number):void {
        this.data = data;
        this.value = value;
    }
}