グレースケール (2)

//////////////////////////////////////////////////////////////////////////////
[AS3.0] BitmapDataUtilsクラスに挑戦！ (1)
http://www.project-nya.jp/modules/weblog/details.php?blog_id=1099
ローカルのファイルを読み込んでグレースケール化するよ！
//////////////////////////////////////////////////////////////////////////////

by ProjectNya 27 May 2010

Tags

image load 画像効果
Embed

/**
 * Copyright ProjectNya ( http://wonderfl.net/user/ProjectNya )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/kV1Y
 */

////////////////////////////////////////////////////////////////////////////////
// [AS3.0] BitmapDataUtilsクラスに挑戦！ (1)
// http://www.project-nya.jp/modules/weblog/details.php?blog_id=1099
//
// ローカルのファイルを読み込んでグレースケール化するよ！
////////////////////////////////////////////////////////////////////////////////

package {

	import flash.display.Sprite;
	import flash.display.Bitmap;
	import flash.display.BitmapData;
	import flash.events.Event;
	import flash.events.MouseEvent;

	[SWF(backgroundColor="#FFFFFF", width="465", height="465", frameRate="30")]

	public class Main extends Sprite {
		private var loader:FileLoader;
		private var bitmap:Bitmap;
		private var bitmapData:BitmapData;
		private var loadBtn:Btn;

		public function Main() {
			Wonderfl.capture_delay(10);
			init();
		}

		private function init():void {
			graphics.beginFill(0xCCCCCC);
			graphics.drawRect(51, 34, 362, 362);
			graphics.endFill();
			loader = new FileLoader();
			loader.addEventListener(Event.INIT, initialize, false, 0, true);
			bitmap = new Bitmap();
			bitmap.x = 52;
			bitmap.y = 35;
			addChild(bitmap);
			var label:Label = new Label();
			addChild(label);
			label.x = 62;
			label.y = 10;
			label.text = "grayscale";
			label.textColor = 0x333333;
			loadBtn = new Btn();
			addChild(loadBtn);
			loadBtn.x = 90;
			loadBtn.y = 415;
			loadBtn.init({label: "load"});
			loadBtn.addEventListener(MouseEvent.CLICK, load, false, 0, true);
		}
		private function load(evt:MouseEvent):void {
			loader.load();
		}
		private function initialize(evt:Event):void {
			bitmapData = evt.target.bitmapData;
			bitmap.bitmapData = bitmapData;
			bitmap.scaleX = bitmap.scaleY = 1;
			var bw:Number = 360/bitmap.width;
			var bh:Number = 360/bitmap.height;
			var scale:Number = Math.min(bw, bh);
			bitmap.scaleX = bitmap.scaleY = scale;
			bitmap.x = uint(360 - bitmap.width)/2 + 52;
			bitmap.y = uint(360 - bitmap.height)/2 + 35;
			apply();
		}
		private function apply():void {
			bitmap.bitmapData = BitmapDataUtils.grayscale(bitmapData);
		}

	}

}


//////////////////////////////////////////////////
//	FileLoaderクラス
//////////////////////////////////////////////////

import flash.events.EventDispatcher;
import flash.net.FileReference;
import flash.net.FileFilter;
import flash.display.Loader;
import flash.display.BitmapData;
import flash.display.Bitmap;
import flash.events.Event;
import flash.events.ProgressEvent;
import flash.events.DataEvent;
import flash.events.IOErrorEvent;
import flash.events.HTTPStatusEvent;
import flash.events.SecurityErrorEvent;

class FileLoader extends EventDispatcher {
	private var file:FileReference;
	private static var typeFilter:Array;
	public var data:*;
	private var loader:Loader;
	public var bitmapData:BitmapData;

	public function FileLoader() {
		init();
	}

	private function init():void {
		file = new FileReference();
		file.addEventListener(Event.SELECT, select, false, 0, true);
		file.addEventListener(Event.CANCEL, cancel, false, 0, true);
		file.addEventListener(Event.OPEN, open, false, 0, true);
		file.addEventListener(ProgressEvent.PROGRESS, progress, false, 0, true);
		file.addEventListener(Event.COMPLETE, complete, false, 0, true);
		file.addEventListener(IOErrorEvent.IO_ERROR, ioerror, false, 0, true);
		file.addEventListener(HTTPStatusEvent.HTTP_STATUS, httpstatus, false, 0, true);
		file.addEventListener(SecurityErrorEvent.SECURITY_ERROR, securityerror, false, 0, true);
		var fileFilter:FileFilter = new FileFilter("画像ファイル", "*.jpg;*.gif;*.png");
		typeFilter = [fileFilter];
		loader = new Loader();
   		loader.contentLoaderInfo.addEventListener(Event.INIT, initialize, false, 0, true);
	}
	public function load():void {
		file.browse(typeFilter);
	}
	private function select(evt:Event):void {
		file.load();
		dispatchEvent(evt);
	}
	private function cancel(evt:Event):void {
		dispatchEvent(evt);
	}
	private function open(evt:Event):void {
		dispatchEvent(evt);
	}
	private function progress(evt:ProgressEvent):void {
		dispatchEvent(evt);
	}
	private function complete(evt:Event):void {
		data = evt.target.data;
		loader.loadBytes(data);
		dispatchEvent(evt);
	}
	private function ioerror(evt:IOErrorEvent):void {
		dispatchEvent(evt);
	}
	private function httpstatus(evt:HTTPStatusEvent):void {
		dispatchEvent(evt);
	}
	private function securityerror(evt:SecurityErrorEvent):void {
		dispatchEvent(evt);
	}
	private function initialize(evt:Event):void {
		bitmapData = null;
		var bitmap:Bitmap = Bitmap(evt.target.content);
		bitmapData = bitmap.bitmapData;
		dispatchEvent(evt);
	}

}


//////////////////////////////////////////////////
//	BitmapDataUtilsクラス
//////////////////////////////////////////////////

import flash.display.BitmapData;
import flash.geom.Rectangle;
import flash.geom.Point;
import flash.filters.ColorMatrixFilter;

class BitmapDataUtils {
	private static var point:Point = new Point();
	private static var rLuma:Number = 0.212671;
	private static var gLuma:Number = 0.71516;
	private static var bLuma:Number = 0.072169;
	public static const THRESHOLD_LOW:String = "<=";
	public static const THRESHOLD_HIGH:String = ">=";

	public function BitmapDataUtils() {
	}

	public static function grayscale(bd:BitmapData):BitmapData {
		var bitmapData:BitmapData = new BitmapData(bd.width, bd.height, false);
		var colorMatrixFilter:ColorMatrixFilter = new ColorMatrixFilter([rLuma, gLuma, bLuma, 0, 0, rLuma, gLuma, bLuma, 0, 0, rLuma, gLuma, bLuma, 0, 0, 0, 0, 0, 1, 0]);
		var rect:Rectangle = new Rectangle(0, 0, bd.width, bd.height);
		bitmapData.applyFilter(bd, rect, point, colorMatrixFilter);
		return bitmapData;
	}
	public static function binarize(bd:BitmapData, operation:String, threshold:uint):BitmapData {
		var bitmapData:BitmapData = new BitmapData(bd.width, bd.height, true, 0xFFFFFFFF);
		var rect:Rectangle = new Rectangle(0, 0, bd.width, bd.height);
		bitmapData.threshold(bd, rect, point, operation, threshold, 0xFF000000, 255, false);
		return bitmapData;
	}
	public static function posterize(bd:BitmapData, tones:uint):BitmapData {
		if (tones < 2) return bd;
		var bitmapData:BitmapData = new BitmapData(bd.width, bd.height, false);
		var rect:Rectangle = new Rectangle(0, 0, bd.width, bd.height);
		var rPalette:Array = new Array();
		var gPalette:Array = new Array();
		var bPalette:Array = new Array();
		var min:uint = 0;
		var max:uint = 255;
		for (var t:uint = 1; t <= tones; t++) {
			max = Math.floor(256*t/tones);
			var color:uint = Math.floor(255*(t-1)/(tones-1));
			for (var n:uint = min; n < max; n++) {
				rPalette[n] = color << 16;
				gPalette[n] = color << 8;
				bPalette[n] = color;
			}
			min = max;
		}
		bitmapData.paletteMap(bd, rect, point, rPalette, gPalette, bPalette);
		return bitmapData;
	}

}


//////////////////////////////////////////////////
//	PhotoLoaderクラス
//////////////////////////////////////////////////

import flash.display.Sprite;
import flash.display.Loader;
import flash.display.LoaderInfo;
import flash.net.URLRequest;
import flash.events.Event;
import flash.events.IOErrorEvent;
import flash.events.HTTPStatusEvent;
import flash.events.SecurityErrorEvent;
import flash.display.Bitmap;
import flash.system.LoaderContext;

class PhotoLoader extends Sprite {
	private var loader:Loader;
	private var info:LoaderInfo;
	public var content:*;
	private var smoothing:Boolean;
	public static const IO_ERROR:String = IOErrorEvent.IO_ERROR;
	public static const HTTP_STATUS:String = HTTPStatusEvent.HTTP_STATUS;
	public static const SECURITY_ERROR:String = SecurityErrorEvent.SECURITY_ERROR;
	public static const INIT:String = Event.INIT;
	public static const COMPLETE:String = Event.COMPLETE;

	public function PhotoLoader() {
		loader = new Loader();
		info = loader.contentLoaderInfo;
	}

	public function load(file:String, s:Boolean = false):void {
		smoothing = s;
		info.addEventListener(IOErrorEvent.IO_ERROR, ioerror, false, 0, true);
		info.addEventListener(HTTPStatusEvent.HTTP_STATUS, httpstatus, false, 0, true);
		info.addEventListener(SecurityErrorEvent.SECURITY_ERROR, securityerror, false, 0, true);
		info.addEventListener(Event.INIT, initialize, false, 0, true);
		info.addEventListener(Event.COMPLETE, complete, false, 0, true);
		try {
			loader.load(new URLRequest(file), new LoaderContext(true));
		} catch (err:Error) {
			trace(err.message);
		}
	}
	public function unload():void {
		loader.unload();
	}
	private function ioerror(evt:IOErrorEvent):void {
		loader.unload();
		dispatchEvent(new Event(PhotoLoader.IO_ERROR));
	}
	private function httpstatus(evt:HTTPStatusEvent):void {
		dispatchEvent(new Event(PhotoLoader.HTTP_STATUS));
	}
	private function securityerror(evt:SecurityErrorEvent):void {
		dispatchEvent(new Event(PhotoLoader.SECURITY_ERROR));
	}
	private function initialize(evt:Event):void {
		if (smoothing) {
			content = Bitmap(info.content);
			content.smoothing = true;
		} else {
			content = info.content;
		}
		dispatchEvent(new Event(PhotoLoader.INIT));
	}
	private function complete(evt:Event):void {
		info.removeEventListener(IOErrorEvent.IO_ERROR, ioerror);
		info.removeEventListener(HTTPStatusEvent.HTTP_STATUS, httpstatus);
		info.removeEventListener(SecurityErrorEvent.SECURITY_ERROR, securityerror);
		info.removeEventListener(Event.INIT, initialize);
		info.removeEventListener(Event.COMPLETE, complete);
		addChild(loader);
		dispatchEvent(new Event(PhotoLoader.COMPLETE));
	}
	public function centerize():void {
		content.x = -uint(content.width*0.5);
		content.y = -uint(content.height*0.5);
	}

}


//////////////////////////////////////////////////
//	Labelクラス
//////////////////////////////////////////////////

import flash.display.Sprite;
import flash.text.TextField;
import flash.text.TextFieldType;
import flash.text.TextFieldAutoSize;
import flash.text.AntiAliasType;
import flash.text.TextFormat;
import flash.text.TextFormatAlign;

class Label extends Sprite {
	private var txt:TextField;
	private static var fontType:String = "_ゴシック";
	private static var _height:uint = 20;

	public function Label() {
		draw();
	}

	private function draw():void {
		txt = new TextField();
		addChild(txt);
		txt.height = _height - 1;
		txt.autoSize = TextFieldAutoSize.LEFT;
		txt.type = TextFieldType.DYNAMIC;
		txt.selectable = false;
		//txt.embedFonts = true;
		//txt.antiAliasType = AntiAliasType.ADVANCED;
		var tf:TextFormat = new TextFormat();
		tf.font = fontType;
		tf.size = 12;
		tf.align = TextFormatAlign.LEFT;
		txt.defaultTextFormat = tf;
	}
	public function set text(param:String):void {
		txt.text = param;
	}
	public function set textColor(param:uint):void {
		txt.textColor = param;
	}

}


//////////////////////////////////////////////////
// Btnクラス
//////////////////////////////////////////////////

import flash.display.Sprite;
import flash.display.Shape;
import flash.text.TextField;
import flash.text.TextFieldType;
import flash.text.AntiAliasType;
import flash.text.TextFormat;
import flash.text.TextFormatAlign;
import flash.filters.GlowFilter;
import flash.events.MouseEvent;

class Btn extends Sprite {
	public var id:uint;
	private var shade:Shape;
	private var bottom:Shape;
	private var light:Shape;
	private var base:Shape;
	private var txt:TextField;
	private var label:String = "";
	private static var fontType:String = "_ゴシック";
	private var _width:uint = 60;
	private static var _height:uint = 20;
	private static var corner:uint = 5;
	private var type:uint = 1;
	private static var bColor:uint = 0xFFFFFF;
	private static var sColor:uint = 0x000000;
	private static var upColor:uint = 0x666666;
	private static var overColor:uint = 0x333333;
	private static var offColor:uint = 0x999999;
	private static var gColor:uint = 0x0099FF;
	private var blueGlow:GlowFilter;
	private var shadeGlow:GlowFilter;
	private var _clicked:Boolean = false;
	private var _enabled:Boolean = true;

	public function Btn() {
	}

	public function init(option:Object):void {
		if (option.id != undefined) id = option.id;
		if (option.label != undefined) label = option.label;
		if (option.width != undefined) _width = option.width;
		if (option.type != undefined) type = option.type;
		draw();
	}
	private function draw():void {
		switch (type) {
		case 1 :
			bColor = 0xFFFFFF;
			sColor = 0x000000;
			upColor = 0x666666;
			overColor = 0x333333;
			offColor = 0x999999;
			break;
		case 2 :
			bColor = 0x000000;
			sColor = 0xFFFFFF;
			upColor = 0x666666;
			overColor = 0x999999;
			offColor = 0x333333;
			break;
		}
		blueGlow = new GlowFilter(gColor, 0.6, 5, 5, 2, 3, false, true);
		shadeGlow = new GlowFilter(sColor, 0.3, 4, 4, 2, 3, false, true);
		shade = new Shape();
		bottom = new Shape();
		light = new Shape();
		base = new Shape();
		txt = new TextField();
		addChild(shade);
		addChild(bottom);
		addChild(light);
		addChild(base);
		addChild(txt);
		createBase(shade, _width, _height, corner, sColor);
		shade.filters = [shadeGlow];
		createBase(bottom, _width, _height, corner, sColor, 0.3);
		createBase(light, _width, _height, corner, gColor);
		light.filters = [blueGlow];
		createBase(base, _width, _height, corner, bColor);
		txt.x = -_width*0.5;
		txt.y = -_height*0.5;
		txt.width = _width;
		txt.height = _height - 1;
		txt.type = TextFieldType.DYNAMIC;
		txt.selectable = false;
		//txt.embedFonts = true;
		//txt.antiAliasType = AntiAliasType.ADVANCED;
		var tf:TextFormat = new TextFormat();
		tf.font = fontType;
		tf.size = 12;
		tf.align = TextFormatAlign.CENTER;
		txt.defaultTextFormat = tf;
		txt.text = label;
		enabled = true;
		mouseChildren = false;
	}
	private function rollOver(evt:MouseEvent):void {
		_over();
	}
	private function rollOut(evt:MouseEvent):void {
		_up();
	}
	private function press(evt:MouseEvent):void {
		_down();
	}
	private function release(evt:MouseEvent):void {
		_up();
	}
	private function click(evt:MouseEvent):void {
	}
	private function _up():void {
		txt.y = -_height*0.5;
		txt.textColor = upColor;
		base.y = -1;
		light.visible = false;
		light.y = -1;
	}
	private function _over():void {
		txt.y = -_height*0.5;
		txt.textColor = overColor;
		base.y = -1;
		light.visible = true;
		light.y = -1;
	}
	private function _down():void {
		txt.y = -_height*0.5 + 1;
		txt.textColor = overColor;
		base.y = 0;
		light.visible = true;
		light.y = 0;
	}
	private function _off():void {
		txt.y = -_height*0.5 + 1;
		txt.textColor = offColor;
		base.y = 0;
		light.visible = false;
		light.y = 0;
	}
	public function get clicked():Boolean {
		return _clicked;
	}
	public function set clicked(param:Boolean):void {
		_clicked = param;
		enabled = !_clicked;
		if (_clicked) {
			_down();
		} else {
			_up();
		}
	}
	public function get enabled():Boolean {
		return _enabled;
	}
	public function set enabled(param:Boolean):void {
		_enabled = param;
		buttonMode = _enabled;
		mouseEnabled = _enabled;
		useHandCursor = _enabled;
		if (_enabled) {
			_up();
			addEventListener(MouseEvent.MOUSE_OVER, rollOver, false, 0, true);
			addEventListener(MouseEvent.MOUSE_OUT, rollOut, false, 0, true);
			addEventListener(MouseEvent.MOUSE_DOWN, press, false, 0, true);
			addEventListener(MouseEvent.MOUSE_UP, release, false, 0, true);
			addEventListener(MouseEvent.CLICK, click, false, 0, true);
		} else {
			_off();
			removeEventListener(MouseEvent.MOUSE_OVER, rollOver);
			removeEventListener(MouseEvent.MOUSE_OUT, rollOut);
			removeEventListener(MouseEvent.MOUSE_DOWN, press);
			removeEventListener(MouseEvent.MOUSE_UP, release);
			removeEventListener(MouseEvent.CLICK, click);
		}
	}
	private function createBase(target:Shape, w:uint, h:uint, c:uint, color:uint, alpha:Number = 1):void {
		target.graphics.beginFill(color, alpha);
		target.graphics.drawRoundRect(-w*0.5, -h*0.5, w, h, c*2);
		target.graphics.endFill();
	}

}