Yahoo! Flash (R) Blog

<?xml version="1.0" encoding="utf-8"?>
 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" initialize="init();" xmlns:ns1="com.yahoo.astra.mx.controls.*">
 
<mx:Script>
	<![CDATA[
 
import mx.core.Container;
import mx.core.UIComponent;
import flash.net.FileReference;
import flash.display.BitmapData;
 
public var fileRef:FileReference = new FileReference();
 
public function init() : void {
	fileRef.addEventListener(Event.SELECT, handleSelectedImage);
	fileRef.addEventListener(Event.COMPLETE, handleFileLoad);
}
 
public function handleBrowseClick () : void {
	var typeFilter:Array = new Array();
	typeFilter.push(new FileFilter("Images", "*.jpg;*.gif;*.png"));
	fileRef.browse(typeFilter);
}
 
public function handleSelectedImage(evt:Event) : void {
	fileName.text = fileRef.name;
	fileRef.load();
}
 
public function handleFileLoad (evt:Event) : void {
	var fileByteData:ByteArray = new ByteArray();
	fileByteData = fileRef.data as ByteArray;
 
	var loader:Loader = new Loader();
	loader.contentLoaderInfo.addEventListener(Event.COMPLETE, extractBitmapData);
	loader.loadBytes(fileByteData);
}
 
public function extractBitmapData (evt:Event) : void {
	var sourceBMP:Bitmap = evt.currentTarget.loader.content as Bitmap;
	var outputBMP:Bitmap = new Bitmap(new BitmapData (sourceBMP.width*2 + 10, sourceBMP.height*2 + 10), "auto", true);
 
	var sourceRect:Rectangle = new Rectangle(0,0,sourceBMP.width, sourceBMP.height);
 
	var blueTransform:ColorTransform = new ColorTransform(1,1,10);
	var yellowTransform:ColorTransform = new ColorTransform(10,10,1);
	var greenTransform:ColorTransform = new ColorTransform(1,10,1);
	var redTransform:ColorTransform = new ColorTransform(10,1,1);
 
	outputBMP.bitmapData.copyPixels(sourceBMP.bitmapData, sourceRect, new Point(0,0));
	outputBMP.bitmapData.copyPixels(sourceBMP.bitmapData, sourceRect, new Point(0, sourceBMP.height + 10));
	outputBMP.bitmapData.copyPixels(sourceBMP.bitmapData, sourceRect, new Point(sourceBMP.width + 10, 0));
	outputBMP.bitmapData.copyPixels(sourceBMP.bitmapData, sourceRect, new Point(sourceBMP.width + 10, sourceBMP.height + 10));
 
	outputBMP.bitmapData.colorTransform(new Rectangle(0,0, sourceBMP.width, sourceBMP.height), blueTransform);
	outputBMP.bitmapData.colorTransform(new Rectangle(sourceBMP.width+10, 0, sourceBMP.width, sourceBMP.height), yellowTransform);
	outputBMP.bitmapData.colorTransform(new Rectangle(0,sourceBMP.height + 10, sourceBMP.width, sourceBMP.height), redTransform);
	outputBMP.bitmapData.colorTransform(new Rectangle(sourceBMP.width+10,sourceBMP.height+10, sourceBMP.width, sourceBMP.height), greenTransform);
 
	var ratio:Number = outputBMP.width / outputBMP.height;
	var sourceRatio:Number = sourceBMP.width / sourceBMP.height;
	sourceBMP.width = 200;
	sourceBMP.height = 200/ratio;
 
if (outputPanel.width > outputPanel.height) {
	outputBMP.height = outputPanel.height - 100;
	outputBMP.width = outputBMP.height * ratio;
}
else {
	outputBMP.width = outputPanel.width - 50;
	outputBMP.height = outputBMP.width / ratio;
}
 
	var outputContainer:UIComponent = new UIComponent();
	var sourceContainer:UIComponent = new UIComponent();
	var arrowContainer:UIComponent = new UIComponent();
 
	sourceContainer.width = sourceBMP.width;
	sourceContainer.height = sourceBMP.height;
 
	outputContainer.width = outputBMP.width;
	outputContainer.height = outputBMP.height;
 
	arrowContainer.width = 10;
	arrowContainer.height = 40;
 
	sourceContainer.addChild(sourceBMP);
	arrowContainer.addChild(drawArrow());
	outputContainer.addChild(outputBMP);
 
	outputPanel.removeAllChildren();
 
	outputPanel.addChild(sourceContainer);
	outputPanel.addChild(arrowContainer);
	outputPanel.addChild(outputContainer);
}
 
public function drawArrow () : Sprite {
	var targetSprite:Sprite = new Sprite();
	targetSprite.graphics.beginFill(0x000000);
	targetSprite.graphics.lineTo(10,20);
	targetSprite.graphics.lineTo(0,40);
	targetSprite.graphics.lineTo(0,0);
	targetSprite.graphics.endFill();	
return targetSprite;
}
]]>
</mx:Script>
<mx:Button id="browseButton" label="Browse for an image" right="10" top="10" click="handleBrowseClick();"/>
<mx:TextInput id="fileName" right="166" top="10"/>
<mx:Label text="Warholizer" fontWeight="bold" fontSize="17" left="7" top="6"/>
<mx:Panel layout="horizontal" bottom="10" right="10" left="10" top="41" id="outputPanel" clipContent="true" title="Output" horizontalAlign="center" verticalAlign="middle">
</mx:Panel>
</mx:Application>