Flash AS3顏色校正

Question

我很快就需要一個假髮來取代我已經撕掉這個問題的頭髮！我的網站上有一個Flash元素，它是一個XML庫。它應該與背景無縫融合。我導入了一張具有透明度的PNG，其中一個邊緣是與另一個BG的混合邊緣。當然，在Mac和Windows上都有顏色轉換。我試圖導入PSD，保存爲JPG，使用GammaSlamma刪除分析，各種東西。

我想我將不得不手動調整圖像來匹配，然後根據用戶的操作系統或類似的東西來提供兩個不同的Flash文件，但後來我看到AS3支持顏色校正，很多人似乎覺得它有用。不用說我非常興奮但是，我從來沒有使用過AS3，並且正在爲此感到頭疼。

我發現了一個免費更換幻燈片那是AS3，但我只是不知道在哪裏可以在添加此代碼

代碼，根據http://kelsocartography.com/blog/?tag=as3-color-correction是所有需要：

stage.colorCorrection = ColorCorrection.ON; 

的代碼畫廊（對不起，這麼長的片段）：

//---------------------------------------------------------------------------------------------------- 
// XMLSlideshow.as 
// 19 Feb 2009 
// www.simplistika.com 
//---------------------------------------------------------------------------------------------------- 
package com.simplistika 
{ 
import flash.display.*; 
import flash.events.*; 
import flash.net.URLRequest; 
import flash.utils.Timer; 

//Color correction 
import flash.display.ColorCorrection; 
stage.colorCorrection = ColorCorrection.ON; 

//---------------------------------------------------------------------------------------------------- 
// class definition 
//---------------------------------------------------------------------------------------------------- 
public class XMLSlideshow extends cXMLApp 
{ 
//---------------------------------------------------------------------------------------------------- 
// member data 
//---------------------------------------------------------------------------------------------------- 
private var mTimer : Timer; 
private var mPlaceholder1 : Loader = new Loader(); 
private var mPlaceholder2 : Loader = new Loader(); 
private var mControl : mcControl = new mcControl(); 
private var mSlide : int; 

//---------------------------------------------------------------------------------------------------- 
// slideshow setup 
//---------------------------------------------------------------------------------------------------- 
private var mFile : String = "http://www.simplistika.com/files/ssp/Slideshow.xml";  // path to xml file 
private var mInterval : uint = 8000;             // slide interval 

//---------------------------------------------------------------------------------------------------- 
// constructor 
//---------------------------------------------------------------------------------------------------- 
public function 
XMLSlideshow( 
) : void 
{  
    trace(this + " " + "XMLSlideshow.constructor"); 
    mTimer = new Timer(mInterval, 0); 

    mPlaceholder1.contentLoaderInfo.addEventListener(Event.OPEN, fOpen); 
    mPlaceholder1.contentLoaderInfo.addEventListener(Event.COMPLETE, fResult); 
    mPlaceholder2.contentLoaderInfo.addEventListener(Event.OPEN, fOpen); 
    mPlaceholder2.contentLoaderInfo.addEventListener(Event.COMPLETE, fResult); 

    //this.addEventListener(MouseEvent.MOUSE_OVER, fOnMouseOver); 
    //this.addEventListener(MouseEvent.MOUSE_OUT, fOnMouseOut); 
    //this.addEventListener(MouseEvent.CLICK, fOnClick); 
    mTimer.addEventListener(TimerEvent.TIMER, fTimer); 

    addChild(mPlaceholder1); 
    addChild(mPlaceholder2); 
    addChild(mControl); 

    mSlide = 0; 
    mControl.btnForward.alpha = mControl.btnBack.alpha = mControl.btnPause.alpha = 0.0; 
    //mControl.btnForward.buttonMode = mControl.btnBack.buttonMode = mControl.btnPause.buttonMode = true; 
    mControl.btnForward.visible = mControl.btnBack.visible = false; 

    super(mFile); 
    super.addEventListener("XMLLoaded", fStart); 
} 

//---------------------------------------------------------------------------------------------------- 
// fStart 
//---------------------------------------------------------------------------------------------------- 
private function 
fStart(
    e : Event 
) : void 
{ 
    trace(this + " " + "XMLSlideshow.fStart"); 

    fLoadImage(); 
} 

//---------------------------------------------------------------------------------------------------- 
// fOnMouseOver 
//---------------------------------------------------------------------------------------------------- 
/* private function 
fOnMouseOver(
e : MouseEvent 
) : void 
{ 

    switch (e.target.name) 
    { 
    case "btnPause": 
     mTimer.running ? mControl.txtDesc.text = "Pause" : mControl.txtDesc.text = "Play"; 
     break;  
    case "btnForward": 
     mControl.txtDesc.text = "Next"; 
     break;  
    case "btnBack": 
     mControl.txtDesc.text = "Back";  
     break; 
    default: 
     return; 
    } 
    mControl.txtDesc.alpha = 1; 
    e.target.alpha = 0.7; 
} 

//---------------------------------------------------------------------------------------------------- 
// fOnMouseOut 
//---------------------------------------------------------------------------------------------------- 
private function 
fOnMouseOut(
e : MouseEvent 
) : void 
{ 
    switch (e.target.name) 
    { 
    case "btnPause": 
    case "btnForward": 
    case "btnBack": 
     e.target.alpha = 0.5; 
     mControl.txtDesc.alpha = 0; 
     return; 
    } 
} 

//---------------------------------------------------------------------------------------------------- 
// fOnClick 
//---------------------------------------------------------------------------------------------------- 
private function 
fOnClick(
    e : MouseEvent 
) : void 
{ 
    trace(this + " " + "XMLSlideshow.fOnClick " + e.target.name); 

    switch (e.target.name) 
    { 
    case "btnPause": 
     if (mControl.txtDesc.text == "Pause") 
     { 
      mTimer.stop(); 
      mControl.btnBack.visible = mControl.btnForward.visible = true; 
      mControl.txtDesc.text = "Play"; 
     } 
     else 
     { 
      mTimer.start(); 
      mControl.btnBack.visible = mControl.btnForward.visible = false; 
      mControl.txtDesc.text = "Pause"; 
     } 
     return; 
    case "btnForward": 
     mSlide == mItems - 1 ? mSlide = 0 : mSlide++; 
     break; 
    case "btnBack": 
     mSlide == 0 ? mSlide = mItems - 1 : mSlide--; 
     break; 
    default: 
     return; 
    }  
    fLoadImage(); 
} */ 

//---------------------------------------------------------------------------------------------------- 
// fLoadImage 
//---------------------------------------------------------------------------------------------------- 
private function 
fLoadImage(
) : void 
{ 
    getChildIndex(mPlaceholder1) != 0 ? 
     mPlaceholder2.load(new URLRequest(mData.slide[mSlide].url)) : 
      mPlaceholder1.load(new URLRequest(mData.slide[mSlide].url)); 
} 

//---------------------------------------------------------------------------------------------------- 
// fTimer 
//---------------------------------------------------------------------------------------------------- 
private function 
fTimer(
    e : TimerEvent 
) : void 
{ 
    mSlide == mItems - 1 ? mSlide = 0 : mSlide++; 
    fLoadImage(); 
} 

//---------------------------------------------------------------------------------------------------- 
// fOpen 
//---------------------------------------------------------------------------------------------------- 
private function 
fOpen(
    e : Event 
) : void 
{ 
    mTimer.stop(); 
} 

//---------------------------------------------------------------------------------------------------- 
// fResult 
//---------------------------------------------------------------------------------------------------- 
private function 
fResult(
    e : Event 
) : void 
{ 
    if (!mControl.btnForward.visible) 
     mTimer.start(); 

    getChildIndex(mPlaceholder1) == 0 ? fNextImage(mPlaceholder1) : fNextImage(mPlaceholder2); 
} 

//---------------------------------------------------------------------------------------------------- 
// fKenBurns 
//---------------------------------------------------------------------------------------------------- 
private function 
fNextImage(
    vPlaceholder : Loader 
) : void 
{ 
    setChildIndex(vPlaceholder, this.numChildren - 2); 
    vPlaceholder.alpha = 0; 
    vPlaceholder == mPlaceholder1 ? cTween.to(mPlaceholder2, {alpha:0}, 1) : cTween.to(mPlaceholder1, {alpha:0}, 1); 
    cTween.to(vPlaceholder, { alpha:1 }, 1); 
} 

//---------------------------------------------------------------------------------------------------- 
} // class 

//---------------------------------------------------------------------------------------------------- 
} // package 

你可以看到我在那裏增加了「色彩校正」，但是當我運行該文件得到這個錯誤：

ReferenceError: Error #1065: Variable stage is not defined. 
at global$init() 

有什麼建議嗎？謝謝....

Answer 1

這是因爲舞臺尚未定義/創建。因此，這裏有2種選擇：

1. 使用ADDED_TO_STAGE監聽器 等待添加 到舞臺上的幻燈片。所以你必須添加 下面的構造器：

   addEventListener(Event.ADDED_TO_STAGE, 
   

   _added）; 並將此功能添加到課程中：

   private _added function(e:Event) 
   { 
       removeEventListener(Event.ADDED_TO_STAGE, 
   

   _added）; stage.colorCorrection = ColorCorrection.ON; }

2. 做一個文檔類（見 http://goo.gl/b92SU的嘖嘖上 這些）你的閃光，像這樣：

   package 
   { 
       import flash.display.MovieClip; 
   
       public class Main extends MovieClip 
       { 
       function Main() 
       { 
        addEventListener(Event.ADDED_TO_STAGE, _added); 
        //other code that was in your main timeline 
       } 
   
       private function _added(e:Event):void 
       { 
        removeEventListener(Event.ADDED_TO_STAGE, _added); 
        stage.colorCorrection = ColorCorrection.ON; 
       } 
       } 
   } 
   

Answer 2

您不能在一個類之外放碼。刪除線

stage.colorCorrection = ColorCorrection.ON; 

並將其放置在Document Class構造函數中。如果您遇到問題，則意味着您的應用程序設置不正確。我建議你創建一個新的問題，或者閱讀this tutorial。