forked from: pure as3 colour wheel

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

// forked from lewis_c1986's pure as3 colour wheel
/*
    Colour wheel Vector
    By Lewis Cowles
    Pure AS3 Very Very Fast way to create a colour wheel, 
    extremely fast algorithm    to use this in your own works 
    you must leave the contextMenu Alone and if your 
    application is commercial there will be a royalty fee
    you may only use if you have my express written consent
    by snailmail(standard post) or e-mail
    
*/
package
{
    import flash.display.*;
    import flash.geom.Matrix;
    import flash.geom.Rectangle;
    
    import flash.ui.ContextMenu;
    import flash.ui.ContextMenuItem;
    import flash.events.ContextMenuEvent;
    import flash.net.*;
    import flash.text.*;    
    import flash.events.*;
    public class ColorWheel extends MovieClip
    {
        private var txtBoxes:Array= [ new TextField(), new TextField(), new TextField(), new TextField() ];
        public function ColorWheel(_radius:Number = 14)
        {
            txtBoxes[0].autoSize = "none";
            txtBoxes[0].background = true;
            txtBoxes[0].backgroundColor = 0x000000;
            txtBoxes[0].width = 50;
            txtBoxes[0].height = 50;
            
            var menu:ContextMenu = new ContextMenu();
            menu.hideBuiltInItems();
            menu.customItems.push(new ContextMenuItem("Created By Lewis Cowles", true, true));
            menu.customItems[0].addEventListener(ContextMenuEvent.MENU_ITEM_SELECT, function():void{
                navigateToURL(new URLRequest("http://google.com/"), "_blank");
            });
            contextMenu = menu;
            var sprite:Sprite = new Sprite();
            //this is for wonderFL testing only
            _radius = ( stage.stageWidth / 2 ) - 2; // take this line out when using in your own apps
            x += 2;
            y += 2;
            var shape:Shape = new Shape();
            
            
            for (var i:Number = 0; i < 360;i+= 0.1)
            {
                var _radians:Number = i * (Math.PI / 180);

                var destX:Number = (_radius * Math.cos(_radians));
                var destY:Number = (_radius * Math.sin(_radians)) ;
            
                var rComponent:Number = Math.cos(_radians) * 127 + 128 << 16;
                var gComponent:Number = Math.cos(_radians + 2 * Math.PI / 3) * 127 + 128 << 8;
                var bComponent:Number = Math.cos(_radians + 4 * Math.PI / 3) * 127 + 128;
 
                var Color:Number  = rComponent | gComponent | bComponent;
            
                shape.graphics.lineStyle(1, Color, 1, false, LineScaleMode.NONE, CapsStyle.NONE);
                shape.graphics.moveTo(_radius, _radius);
                shape.graphics.lineTo(destX+_radius, destY+_radius);
            }
            addChild(sprite);
            sprite.addChild(shape);
            addChild(txtBoxes[0]);
            
            addEventListener(Event.ENTER_FRAME, function(e:Event):void
            {
                var _radians:Number = Math.atan2(mouseY-_radius, mouseX-_radius);
                var rComponent:Number = Math.cos(_radians) * 127 + 128 << 16;
                var gComponent:Number = Math.cos(_radians + 2 * Math.PI / 3) * 127 + 128 << 8;
                var bComponent:Number = Math.cos(_radians + 4 * Math.PI / 3) * 127 + 128;
                 var bgColor:uint = rComponent | gComponent | bComponent;
                 txtBoxes[0].backgroundColor = bgColor;
                 txtBoxes[0].text = "";
                 var hexString:String = bgColor.toString(16);
                 if(hexString.length < 6)
                 {
                     for(var diff:Number = 6-hexString.length; diff>0; diff--)
                    {
                        hexString = "0"+hexString;
                    }
                 }
                 txtBoxes[0].text = "#" + hexString;
                 
            });
        }
    }
}