// forked from munegon's code on 2008-12-18 // write as3 code here.. package { import flash.display.*; import flash.events.*; import flash.ui.Keyboard; import flash.filters.*; import flash.geom.*; public class DrawApp extends Sprite { private var canvas_bd:BitmapData; private var canvas_sp:Sprite; private var blur:BlurFilter; private var index:int; private var color:int; private var colors:Array = [0xcc0000, 0xcccc00, 0x00cc00, 0x00cccc, 0x0000cc, 0xcc00cc ]; public function DrawApp() { addEventListener( Event.ADDED, added ); blur = new BlurFilter(3,3); } private function added( e:Event ):void { if ( e.target == this ) { removeEventListener( e.type, arguments.callee ); setup(); } addEventListener(Event.ENTER_FRAME, enterFrame); } private function setup():void { canvas_bd = new BitmapData( stage.stageWidth, stage.stageHeight, false, 0x000000 ); addChild( new Bitmap( canvas_bd ) ); canvas_sp = new Sprite(); addChild( canvas_sp ); index = 0; color = colors[ index ]; stage.addEventListener( MouseEvent.MOUSE_DOWN, startDraw ); stage.addEventListener( KeyboardEvent.KEY_UP, keyUpHandler ); } private function keyUpHandler( e:KeyboardEvent ):void { switch ( e.keyCode ) { case Keyboard.LEFT: index = ( colors.length + index - 1 ) % colors.length; color = colors[ index ]; break; case Keyboard.RIGHT: index = ( index + 1 ) % colors.length; color = colors[ index ]; break; } } private function startDraw( e:MouseEvent ):void { index = ( colors.length + index - 1 ) % colors.length; color = colors[ index ]; var g:Graphics = canvas_sp.graphics; g.clear(); g.lineStyle( 5, color, 0.8 ); g.moveTo( e.stageX, e.stageY ); var up:Function = function( e:MouseEvent ):void { stage.removeEventListener( MouseEvent.MOUSE_MOVE, move ); stage.removeEventListener( MouseEvent.MOUSE_UP, up ); //canvas_bd.draw( canvas_sp,null, null, BlendMode.ADD); g.clear(); } var move:Function = function( e:MouseEvent ):void { g.lineTo( e.stageX, e.stageY ); } stage.addEventListener( MouseEvent.MOUSE_MOVE, move ); stage.addEventListener( MouseEvent.MOUSE_UP, up ); } private function enterFrame(e:Event):void { canvas_bd.draw( canvas_sp,null, null, BlendMode.ADD); canvas_bd.applyFilter(canvas_bd, canvas_bd.rect, new Point(), blur); } } }