FlexPaper源码的修改
1.搭建Flexbuilder环境，网上很多，不在赘述。(FlexPaper要求的是Flex4，因为Flex3有的代码不支持)。
2.通过http://flexpaper.googlecode.com/svn/trunk/这个地址，获取Flexpaper的源码（我下载的是2012-1-24日的版本）。在获取前，我们需要安装SVN，这里我们使用TortoiseSVN，安装后打开，选择file->TortoiseSVN->Repo-browser，输入上面的地址即可。(文件见附件，FlexPaper.rar 文件)。
3.新建一个Flex项目，将FlexPaper源码下的src目录和local目录覆盖到你新建的Flex项目的src目录，以及lib下的FlexPaper_Resources.swc文件拷贝到项目的libs目录下。如附件所示：项目结构.jpg。
4.在默认包下打开和你项目名称同名的一个mxml文件，加入如下代码：
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
xmlns:fp="com.devaldi.controls.flexpaper.*"
width="100%" height="100%" applicationComplete="initApp();" layout="absolute"
viewSourceURL="srcview/index.html">
<mx:Script>
<![CDATA[
import mx.controls.Alert;
public var _aid = 0;//文档ID
[Bindable]
public var _Scale:Number = 1;//缩放比例
[Bindable]
public var _SwfFile:String = "";//SWF文件路径
[Bindable]
public var _ZoomTransition:String = "easeOut";
[Bindable]
public var _ZoomTime:Number = 0.6;
[Bindable]
public var _ZoomInterval:Number = 0.1;
[Bindable]
public var _FitPageOnLoad:Boolean = true;//加载后适合高度
[Bindable]
public var _FitWidthOnLoad:Boolean = true;//加载后适合宽度
[Bindable]
public var _PrintEnabled:Boolean = true;//是否支持打印
[Bindable]
public var _FullScreenAsMaxWindow:Boolean = false;//是否支持全屏
[Bindable]
public var _ProgressiveLoading:Boolean = false;//是否延迟加载
[Bindable]
public var _localeChain:String = "zh_CN";//语言
private var isFocus:Boolean = false;
//初始化参数
private function initApp():void{
var params:Object = Application.application.parameters;
_Scale = getNumber(params, "Scale", 1);
_SwfFile = getString(params, "SwfFile", "Paper.swf");
_ZoomTransition = getString(params, "ZoomTransition", "easeOut");
_ZoomTime = getNumber(params, "ZoomTime", 0.6);
_ZoomInterval = getNumber(params, "ZoomInterval", 0.1);
_FitPageOnLoad = getBoolean(params, "FitPageOnLoad", false);
_FitWidthOnLoad = getBoolean(params, "FitWidthOnLoad", false);
_PrintEnabled = getBoolean(params, "PrintEnabled", true);
_FullScreenAsMaxWindow = getBoolean(params, "FullScreenAsMaxWindow", false);
_ProgressiveLoading = getBoolean(params, "ProgressiveLoading", true);
_localeChain = params["localeChain"];
//注册事件监听
this.addEventListener(MouseEvent.MOUSE_OVER, onMouseOver);
this.addEventListener(MouseEvent.MOUSE_OUT, onMouseOut);
//开放给外部（javascript）调用
ExternalInterface.addCallback("hasFocus", hasFocus);
//ExternalInterface.addCallback("focus", focus);
ExternalInterface.addCallback("setViewerFocus", setViewerFocus);
}
private function onMouseOver(event:MouseEvent):void{
this.isFocus = true;
}
private function onMouseOut(event:MouseEvent):void{
this.isFocus = false;
}
public function hasFocus():Boolean{
//Alert.show("hasFocus");
return isFocus;
}
public function setViewerFocus(isFocus:Boolean):void{
//Alert.show("setViewerFocus");
this.paperViewer.setViewerFocus();
}
/**
*
* 获取String类型参数
* 如果没有，则返回默认值
**/
private function getString(params:Object, name:String, def:String):String{
if(params[name] != null){
return params[name];
}
return def;
}
private function getNumber(params:Object, name:String, def:Number):Number{
if(params[name] != null){
return params[name];
}
return def;
}
private function getBoolean(params:Object, name:String, def:Boolean):Boolean{
//Alert.show("比较："+name);
if(params[name] != null){
return params[name] == "true";
}
return def;
}
]]>
</mx:Script>
<!--mx:Panel x="165" y="76" width="250" height="200" layout="absolute" title="一个人">
<mx:Label x="59" y="37" text="{Scale}" width="88"/>
</mx:Panel-->
<fp:FlexPaperViewer id="paperViewer"
width="100%"
height="100%"
Scale="{_Scale}"
SwfFile="{_SwfFile}"
ZoomTransition="{_ZoomTransition}"
ZoomTime="{_ZoomTime}"
ZoomInterval="{_ZoomInterval}"
FitPageOnLoad="{_FitPageOnLoad}"
FitWidthOnLoad="{_FitWidthOnLoad}"
FullScreenAsMaxWindow="{_FullScreenAsMaxWindow}"
ProgressiveLoading="{_ProgressiveLoading}" />
</mx:Application>
5.去掉工具栏最右边[关于...]对话框的显示的按钮
源文件:FlexPaperViewer.mxml
将源码中查找所有的bttnInfo，共如下三处：
1)bttnInfo.visible = (new MenuIcons.SMALL_TRANSPARENT().width > 10);用"//"注释掉 2)bttnInfo.visible = (new MenuIcons.SMALL_TRANSPARENT().width > 10);用"//"注释掉 3)bttnInfo.visible = true;改为bttnInfo.visible = false; //spin1.visible = true;注释掉 spin1.visible = false;
6.去掉底部的logo图片：
源文件: FlexPaperViewer.mxml
将<fp:FlexPaperViewer_Base ...>的属性最后行加入creationComplete处理:
<fp:FlexPaperViewer_Base xmlns:mx="http://www.adobe.com/2006/mxml"
addedToStage="bindStageEvents(event)"
xmlns:fp="com.devaldi.controls.flexpaper.*"
xmlns:ct="com.devaldi.controls.*"
xmlns:st="com.devaldi.skinning.*"
creationComplete="initApp()">
然后加入处理initApp()函数到<mx:Script>中
public function initApp():void {
paper1.removeElementAt(2);
}
最后将源码中的函数papersLoadingHandler(event:Event)最后一行加上:paper1.removeElementAt(2);修改后如下所示：
protected override function papersLoadingHandler(event:Event):void{
//spin1.start();
//spin1.visible = true;
spin1.visible = false;
super.papersLoadingHandler(event);
paper1.removeElementAt(2);
}
7.菜单栏中文显示:
右键项目--->属性---->Flex编译器--->在附加的编译器参数框里加入下面一句：-locale zh_CN -source-path=locale/{locale} -keep-all-type-selectors=true即可。
8.点击菜单后，logo又出现的问题:
源文件: FlexPaperViewer.mxml修改如下代码：
<st:GradientImageButton icon="{MenuIcons.SINGLE_PAGE}" styleName="toolbttn" width="20" click="paper1.switchMode(Viewer.InitViewMode);paper1.removeElementAt(2);" toolTip="@Resource(key='SinglePage', bundle='FlexPaper')" selected="{paper1.ViewMode == Viewer.InitViewMode}" tabIndex="2" visible="{ViewModeToolsVisible}" includeInLayout="{ViewModeToolsVisible}"/>
<st:GradientImageButton icon="{MenuIcons.TWO_PAGE}" styleName="toolbttn" width="20" click="paper1.switchMode('TwoPage');paper1.removeElementAt(2);" toolTip="@Resource(key='TwoPage', bundle='FlexPaper')" selected="{paper1.ViewMode == ViewModeEnum.TWOPAGE}" tabIndex="3" visible="{ViewModeToolsVisible}" includeInLayout="{ViewModeToolsVisible}"/>
<st:GradientImageButton icon="{MenuIcons.THUMBS}" styleName="toolbttn" width="20" click="paper1.switchMode('Tile');paper1.removeElementAt(2);" toolTip="@Resource(key='ThumbView', bundle='FlexPaper')" selected="{paper1.ViewMode == ViewModeEnum.TILE}" tabIndex="4" visible="{ViewModeToolsVisible}" includeInLayout="{ViewModeToolsVisible}"/>
protected override function onViewModeChanged(event:ViewModeChangedEvent):void{
txtPage.text = formatPageNumber(viewer.currPage);
super.onViewModeChanged(event);
paper1.removeElementAt(2);
} 到此源码就改好了。