牙牙的博客

功能描述
默认向左移动
鼠标移上：停止移动
向左
向右

------------------------------------------------------------------------------------------------

package code
{
 /*****************************************
  * DrawingSample4 :
  * Demonstrates dynamic color transformations.
  * -------------------
  * See 4_color.fla
  ****************************************/
 
 import fl.events.SliderEvent;
 import flash.events.Event;
 import flash.events.MouseEvent;
 import flash.display.SimpleButton;
 import flash.display.MovieClip;
 import flash.geom.ColorTransform;
 
 public class Drawing4 extends MovieClip
 {
  //*************************
  // Properties:
  
  public var activeSwatch:MovieClip;
  
  // Color offsets
  public var c1:Number = 0; // R
  public var c2:Number = 51; // G
  public var c3:Number = 51; // B
  
  //*************************
  // Constructor:
  
  public function Drawing4()
  {
   // Respond to mouse events
   swatch1_btn.addEventListener(MouseEvent.CLICK,swatchHandler,false,0,false);
   swatch2_btn.addEventListener(MouseEvent.CLICK,swatchHandler,false,0,false);
   swatch3_btn.addEventListener(MouseEvent.CLICK,swatchHandler,false,0,false);
   swatch4_btn.addEventListener(MouseEvent.CLICK,swatchHandler,false,0,false);
   swatch5_btn.addEventListener(MouseEvent.CLICK,swatchHandler,false,0,false);
   swatch6_btn.addEventListener(MouseEvent.CLICK,swatchHandler,false,0,false);
   apply_btn.addEventListener(MouseEvent.CLICK,clickHandler,false,0,true);
   previewBox_btn.addEventListener(MouseEvent.MOUSE_DOWN,dragPressHandler);
   
   // Respond to drag events
   red_slider.addEventListener(SliderEvent.THUMB_DRAG,sliderHandler);
   red_slider.addEventListener(Event.CHANGE,sliderHandler);
   green_slider.addEventListener(SliderEvent.THUMB_DRAG,sliderHandler);
   green_slider.addEventListener(Event.CHANGE,sliderHandler);
   blue_slider.addEventListener(SliderEvent.THUMB_DRAG,sliderHandler);
   blue_slider.addEventListener(Event.CHANGE,sliderHandler);
   
   // Respond to textfield events
   hexc1_txt.addEventListener(Event.CHANGE,changeHexHandler);
   hexc2_txt.addEventListener(Event.CHANGE,changeHexHandler);
   hexc3_txt.addEventListener(Event.CHANGE,changeHexHandler);
   c1_txt.addEventListener(Event.CHANGE,changeRGBHandler);
   c2_txt.addEventListener(Event.CHANGE,changeRGBHandler);
   c3_txt.addEventListener(Event.CHANGE,changeRGBHandler);
   
   // Draw a frame later
   addEventListener(Event.ENTER_FRAME,draw);
  }
  
  //*************************
  // Initialization:
  
  protected function draw(event:Event):void
  {
   // Set color transformations
   swatch1_btn.chipfill.transform.colorTransform = new ColorTransform(0,0,0,1,127,0,97);
   swatch2_btn.chipfill.transform.colorTransform = new ColorTransform(0,0,0,1,130,0,0);
   swatch3_btn.chipfill.transform.colorTransform = new ColorTransform(0,0,0,1,10,106,0);
   swatch4_btn.chipfill.transform.colorTransform = new ColorTransform(0,0,0,1,0,51,51);
   swatch5_btn.chipfill.transform.colorTransform = new ColorTransform(0,0,0,1,0,51,102)
   swatch6_btn.chipfill.transform.colorTransform = new ColorTransform(0,0,0,1,127,127,127);
   previewBox_btn.transform.colorTransform = new ColorTransform(0,0,0,1,c1,c2,c3);
   
   // Handle listeners...
   removeEventListener(Event.ENTER_FRAME,draw);
  }
  
  //*************************
  // Event Handling:
  
  protected function dragPressHandler( event:MouseEvent ):void
  {
   activeSwatch = new Swatch();
   activeSwatch.transform.colorTransform = new ColorTransform(0,0,0,1,c1,c2,c3);
   activeSwatch.addEventListener(MouseEvent.MOUSE_UP,dragReleaseHandler);   
   activeSwatch.startDrag(true);
   addChild(activeSwatch);
  }
  
  protected function dragReleaseHandler( event:MouseEvent ):void
  {
   if( activeSwatch.hitTestObject(car) ){
    car.transform.colorTransform = new ColorTransform(0,0,0,1,c1,c2,c3);
   }
   activeSwatch.stopDrag();
   activeSwatch.removeEventListener(MouseEvent.MOUSE_UP,dragReleaseHandler);   
   removeChild(activeSwatch);
  }
  
  protected function clickHandler(event:MouseEvent):void
  {
   car.transform.colorTransform = new ColorTransform(0,0,0,1,c1,c2,c3);
  }
  
  protected function changeRGBHandler(event:Event):void
  {
   c1 = Number(c1_txt.text);
   c2 = Number(c2_txt.text);
   c3 = Number(c3_txt.text);
   
   if(!(c1>=0)){
    c1 = 0;
   }
   if(!(c2>=0)){
    c2 = 0;
   }
   if(!(c3>=0)){
    c3 = 0;
   }
   hexc1_txt.text = c1.toString(16);
   hexc2_txt.text = c2.toString(16);
   hexc3_txt.text = c3.toString(16);
   
   updateSliders();
  }
  
  protected function changeHexHandler(event:Event):void
  {
   c1 = parseInt("0x"+hexc1_txt.text);
   c2 = parseInt("0x"+hexc2_txt.text);
   c3 = parseInt("0x"+hexc3_txt.text);
   
   if(!(c1>=0)){
    c1 = 0;
   }
   if(!(c2>=0)){
    c2 = 0;
   }
   if(!(c3>=0)){
    c3 = 0;
   }
   c1_txt.text = c1.toString();
   c2_txt.text = c2.toString();
   c3_txt.text = c3.toString();
   
   updateSliders();
  }
  
  protected function sliderHandler( event:SliderEvent ):void
  {
   switch( event.target )
   {
    case red_slider:
     
     c1 = red_slider.value;
     break;
     
    case green_slider:
    
     c2 = green_slider.value;
     break;
     
    case blue_slider:
    
     c3 = blue_slider.value;
     break;
   }
   updateFields();
  }
  
  protected function swatchHandler(event:MouseEvent):void
  {
   switch( event.target.parent )
   {
    case swatch1_btn:
     
     c1 = 127;
     c2 = 0;
     c3 = 97;
     break;
     
    case swatch2_btn:
    
     c1 = 130;
     c2 = 0;
     c3 = 0;
     break;
     
    case swatch3_btn:
    
     c1 = 10;
     c2 = 106;
     c3 = 0;
     break;
     
    case swatch4_btn:
     
     c1 = 0;
     c2 = 51;
     c3 = 51;
     break;
     
    case swatch5_btn:
    
     c1 = 0;
     c2 = 51;
     c3 = 102;
     break;
     
    case swatch6_btn:
    
     c1 = 127;
     c2 = 127;
     c3 = 127;
     break;
   }
   updateFields();
   updateSliders();
  }
  
  //*************************
  // Utils:
  
  protected function updateFields():void
  {
   hexc1_txt.text = c1.toString(16);
   hexc2_txt.text = c2.toString(16);
   hexc3_txt.text = c3.toString(16);
   
   c1_txt.text = c1.toString();
   c2_txt.text = c2.toString();
   c3_txt.text = c3.toString();
   
   previewBox_btn.transform.colorTransform = new ColorTransform(0,0,0,1,c1,c2,c3);
  }
  
  protected function updateSliders():void
  {
   red_slider.value = c1;
   green_slider.value = c2;
   blue_slider.value = c3;
   
   previewBox_btn.transform.colorTransform = new ColorTransform(0,0,0,1,c1,c2,c3);
  }
 }
}}