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色相環カラーピッカー(HSV色空間)

zahirです
HSV色空間式カラーピッカー(のつもり)
なんとなく作ったのでかなり適当です
だれかいい感じにつくり直してください (^^;
/**
 * Copyright zahir ( http://wonderfl.net/user/zahir )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/cukM
 */

package{
	/*
	 * zahirです
	 * HSV色空間式カラーピッカー(のつもり)
	 * なんとなく作ったのでかなり適当です
	 * だれかいい感じにつくり直してください (^^;
	*/
	import flash.display.*;
	[SWF(width = 465, height = 465, backgroundColor = 0xFFFFFF)]
	public class CircleColorPiker extends Sprite{
		private var picker:Base;
		private var g:Graphics;
		private var w:int, h:int;
		public function CircleColorPiker(){
			g = this.graphics;
			picker = new Base( 240, 240, draw);
			picker.x = (this.stage.stageWidth - picker.width) >> 1;
			picker.y = (this.stage.stageHeight - picker.height - 15) >> 1;
			this.addChild( picker );
			w = this.stage.stageWidth;
			h = this.stage.stageHeight;
			Wonderfl.capture_delay(2);
		}
		public function draw( color:uint ):void{
			g.clear();
			g.beginFill( color );
			g.drawRect(0, 0 , w, h );
			g.endFill();
		}
	}
}

import flash.display.Shader;
import mx.utils.Base64Decoder;
import flash.display.Shape;
import flash.display.Graphics;
import flash.display.Sprite;
import flash.events.MouseEvent;
import flash.geom.Matrix;
class Base extends Sprite{
	private const PI:Number = 0.01745;
	
	private var g:Graphics;
	private var h_s:HueSlider;
	private var svs:SVSlider;
	private var cx:Number, cy:Number;
	private var h_r:int;
	private var bg:Shape;
	private var bg_l:Number;
	private var svX1:int, svX2:int, svY1:int, svY2:int;
	
	private var H:Number = 0, S:Number = 0, V:Number = 1;
	
	private var parentDraw:Function;
	
	public function Base( w:int, h:int , pDraw:Function){
		parentDraw = pDraw;
		g= this.graphics;
		g.lineStyle( 2, 0x333333);
		g.beginFill( 0x111111 );
		g.drawRoundRectComplex(0, 0, w, h, 5, 5, 5, 5);
		g.endFill();
		
		cx = w>>1, cy = h>>1;
		
		var circle:Circle = new Circle( (w  - 40) >>1 );
		circle.x = cx;
		circle.y = cy;
		this.addChild( circle );
		
		bg = new Shape();
		g = bg.graphics;
		bg_l = w*0.4;
		g.beginFill( 0xFF0000 );
		g.drawRect( 0,0, bg_l ,bg_l );
		g.endFill()
		this.addChild( bg );
		bg.x = cx - (bg.width >>1 );
		bg.y = cy - (bg.height >>1);
		
		var gr:GradientRect = new GradientRect( bg_l ,  bg_l  );
		this.addChild( gr );
		gr.x = cx - (gr.width >>1 );
		gr.y = cy - (gr.height >>1);
		
		svX1 = gr.x; svX2 = svX1 + bg_l;
		svY1 = gr.y; svY2 = svY1 + bg_l;
		
		svs = new SVSlider();
		svs.x = gr.x;
		svs.y = gr.y;
		this.addChild( svs );
		svs.addEventListener(MouseEvent.MOUSE_DOWN,function(e:MouseEvent):void{
			svs.stage.addEventListener(MouseEvent.MOUSE_MOVE, svMove);
			svs.stage.addEventListener(MouseEvent.MOUSE_UP, svUp);
		});
		
		h_s = new HueSlider();
		this.addChild( h_s );
		h_r = (w-60) >> 1;
		h_s.x = Math.cos( PI * -90 ) * h_r + cx;
		h_s.y = Math.sin( PI * -90) * h_r + cy;
		
		h_s.addEventListener( MouseEvent.MOUSE_DOWN, function(e:MouseEvent):void{
			h_s.stage.addEventListener(MouseEvent.MOUSE_MOVE, moveH);
			h_s.stage.addEventListener(MouseEvent.MOUSE_UP, upH);
		});
	}
	private function svMove(e:MouseEvent):void{
		e.updateAfterEvent();
		var _x:int = mouseX, _y:int = mouseY;
		if(_x < svX1) svs.x = svX1;
		else if(_x > svX2) svs.x = svX2;
		else svs.x = _x;
		if(_y < svY1) svs.y = svY1;
		else if(_y > svY2) svs.y = svY2;
		else svs.y = _y;
		
		S = 1 - (svX2 - svs.x) / bg_l;
		V = (svY2 - svs.y) / bg_l;
		
		parentDraw( hsv2RGB() );
	}
	private function svUp(e:MouseEvent):void{
		svs.stage.removeEventListener(MouseEvent.MOUSE_MOVE, svMove);
		svs.stage.removeEventListener(MouseEvent.MOUSE_UP, svUp);
	}
	private function draw( color:uint ):void{
		g.clear();
		g.beginFill( color );
		g.drawRect( 0,0, bg_l ,bg_l );
		g.endFill();
	}
	private function moveH(e:MouseEvent):void{
		e.updateAfterEvent();
		var rot:Number = -Math.atan2( mouseX - cx,  mouseY - cy) / PI + 90;
		h_s.x = Math.cos( PI *rot ) * h_r + cx;
		h_s.y =Math.sin( PI *rot ) * h_r + cy;
		
		draw( Hue2RGB( rot + 90 ) );
		parentDraw( hsv2RGB() );
	}
	private function upH(e:MouseEvent):void{
		h_s.stage.removeEventListener(MouseEvent.MOUSE_MOVE, moveH);
		h_s.stage.removeEventListener(MouseEvent.MOUSE_UP, upH);
	}
	private function hsv2RGB():uint{
		if(H<0) H+= 360;
		H %= 360;
		var h:Number = H / 60;
		var _h:Number = Math.floor( h );
		var v:Number = Math.max(0, Math.min( 0xFF, V * 0xFF) );
		var mr:uint = v <<16;
		var mg:uint = v <<8;
		var h_:Number = Math.round( v * ( 1 - ( 1- h+_h ) * S) );
		h = Math.round( v * (1- S * h + S* _h) );
		var n:Number = Math.round( v * (1-S) );
		var c:uint;
		switch(_h){
			case 0:
				c = mr| ( h_ << 8) | n;
				break;
			case 1:
				c = (h << 16) | mg | n;
				break;
			case 2:
				c = (n<<16) | mg | h_;
				break;
			case 3:
				c =  (n<<16) | (h<<8) | v;
				break;
			case 4:
				c = (h_<<16) | (n<<8) | v; 
				break;
			case 5:
				c = mr | (n<<8) | h;
				break;
		}
		return c;
	}
	private function Hue2RGB( Hue:int ):uint{
		var h:Number = H = (Hue % 360 < 0) ? Hue + 360 : Hue;
		h /= 60;
		var _h:Number = Math.floor( h );
		var m:int = 255;
		var red:uint = m<<16;
		var green:uint = m<<8;
		var h_:Number = Math.round( m * (1 - h + _h) );
		h = Math.round( m * ( 1 - (1 - h + _h) ) );
		var c:uint;
		switch(_h){
			case 0:
				c = red | ( h << 8) | 0;
				break;
			case 1:
				c = (h_ << 16) | green | 0;
				break;
			case 2:
				c = 0 | green | h;
				break;
			case 3:
				c =  0 | (h_<<8) | m;
				break;
			case 4:
				c = (h<<16) | 0 | m; 
				break;
			case 5:
				c = red | 0 | h_;
				break;
		}
		return c;
	}
}
class GradientRect extends Shape{
	public function GradientRect(w:int, h:int){
		var m:Matrix = new Matrix();
		var g:Graphics = this.graphics;
		m.createGradientBox( w, h );
		g.lineStyle( 1 );
		g.beginGradientFill("linear", [0xFFFFFF, 0xFFFFFF], [1,0], [0,255],m);
		g.drawRect(0,0, w, h );
		g.endFill();
		m.createGradientBox( w, h, 90 * 0.01745 );
		g.beginGradientFill("linear", [0x0, 0x0], [0,1], [0,255],m);
		g.drawRect(0,0, w, h );
		g.endFill();
	}
}
class HueSlider extends Sprite{
	private var g:Graphics;
	public const RAD:int = 7;
	public function HueSlider(){
		g = this.graphics;
		g.lineStyle(2);
		g.beginFill( 0xFFFFFF , 0.6 );
		g.drawCircle( 0, 0, RAD);
		g.endFill();
	}
}
class SVSlider extends Sprite{
	public function SVSlider(){
		var g:Graphics = this.graphics;
		g.lineStyle(2);
		g.beginFill( 0xFFFFFF, 0.6);
		g.drawCircle( 0, 0 , 4);
		g.endFill();
	}
}
class Circle extends Shape{
	private var g:Graphics;
	public function Circle( rad:int){
		g = this.graphics;
		var s:HueGradient = new HueGradient();
		s.center = [ 0,0];
		s.rotate = [-90];
		g.lineStyle( 1, 0x0 );
		g.beginShaderFill( s );
		g.drawCircle( 0, 0, rad);
		g.drawCircle( 0, 0, rad - 20);
		g.endFill();
	}
}
class HueGradient extends Shader{
	// 色相環なグラデーションを塗るShader
	public function HueGradient(){
		var dec:Base64Decoder = new Base64Decoder();
		dec.decode( "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" );
		this.byteCode = dec.toByteArray();
		dec = null;
	}
	public function get center():Array{
		return this.data.center.value;
	}
	public function set center( value:Array ):void{
		this.data.center.value = value;
	}
	public function get rotate():Array{
		return this.data.rotate.value;
	}
	public function set rotate( value:Array ):void{
		this.data.rotate.value = value;
	}
}