SharpDevelop源码分析笔记(一)
参见：Fbt2008的大作 SharpDevelop源码分析笔记(一)
源文档 <http://www.cnblogs.com/fbt2008/archive/2005/08/02/205785.aspx?Pending=true>
在Fbt2008的大作中描述了SharpDevelop其Runtime的启动过程，我把其中GUI启动补充一下。
其中写到如下系统代码启动片断
系统代码：
commands = AddInTreeSingleton.AddInTree.GetTreeNode( " /Workspace/Autostart " ).BuildChildItems( null );
for ( int i = 0 ; i < commands.Count - 1 ; ++ i)
{
((ICommand)commands[i]).Run();
}
}
这段代码会载入如下清单文件，并根据此清单文件中的ClassId载入运行
插件清单之一（SharpDevelopCore.addin文件）
片断
<Extension path = "/Workspace/Autostart">
<Class id = "InitializeWorkbenchCommand"
class = "ICSharpCode.SharpDevelop.Commands.InitializeWorkbenchCommand"/>
<Class id = "StartCodeCompletionWizard"
class = "ICSharpCode.SharpDevelop.Commands.StartCodeCompletionWizard"/>
<Class id = "StartParserServiceThread"
class = "ICSharpCode.SharpDevelop.Commands.StartParserServiceThread"/>
<!-- #assembly preload -->
<Class id = "StartSharpAssemblyPreloadThread"
class = "ICSharpCode.SharpDevelop.Commands.StartSharpAssemblyPreloadThread"/>
<Class id = "StartWorkbenchCommand"
class = "ICSharpCode.SharpDevelop.Commands.StartWorkbenchCommand"/>
</Extension>
大家注意了："/Workspace/Autostart" 就是上面代码根据此描述将这一段的描述中的Class的实例载入，然后执行他们的方法（这些Class都继承了Icommand）
这些类都在文件AutostartCommands.cs中
而GUI的主要启动过程就在InitializeWorkbenchCommand类上，如下：
public class InitializeWorkbenchCommand : AbstractCommand
{
const string workbenchMemento = "SharpDevelop.Workbench.WorkbenchMemento"; public override void Run()
{
//产生一个默认的Workbench DefaultWorkbench w = new DefaultWorkbench(); WorkbenchSingleton.Workbench = w; //启动Workbench w.InitializeWorkspace(); PropertyService propertyService = (PropertyService)ServiceManager.Services.GetService(typeof(PropertyService)); //将上一次使用的Workbench布局等信息重新载入 w.SetMemento((IXmlConvertable)propertyService.GetProperty(workbenchMemento, new WorkbenchMemento())); //刷新Workbench，根据布局信息，打开启动时需要展现的Pad和Editor w.UpdatePadContents(null, null); WorkbenchSingleton.CreateWorkspace(); 
}
}
DefaultWorkbench 的 InitializeWorkspace代码如下
public void InitializeWorkspace() { Menu = null; //状态条 statusBarManager.Control.Dock = DockStyle.Bottom; ActiveWorkbenchWindowChanged += new EventHandler(UpdateMenu); MenuComplete += new EventHandler(SetStandardStatusBar); SetStandardStatusBar(null, null); IProjectService projectService = (IProjectService)ICSharpCode.Core.Services.ServiceManager.Services.GetService(typeof(IProjectService)); IFileService fileService = (IFileService)ICSharpCode.Core.Services.ServiceManager.Services.GetService(typeof(IFileService)); projectService.CurrentProjectChanged += new ProjectEventHandler(SetProjectTitle); projectService.CombineOpened += new CombineEventHandler(CombineOpened); fileService.FileRemoved += new FileEventHandler(CheckRemovedFile); fileService.FileRenamed += new FileEventHandler(CheckRenamedFile); fileService.FileRemoved += new FileEventHandler(fileService.RecentOpen.FileRemoved); fileService.FileRenamed += new FileEventHandler(fileService.RecentOpen.FileRenamed); // TopMenu.Selected += new CommandHandler(OnTopMenuSelected); // TopMenu.Deselected += new CommandHandler(OnTopMenuDeselected); //创建菜单 CreateMainMenu(); //创建工具条 CreateToolBars();}
w.SetMemento(...);
w.UpdatePadContents(null, null);
这两句稍稍复杂些，在这里就不分析了。
注意：有关Workbench，pad和Editor等概念基本可以参照Eclipse文档。有一些细小差别,例如Pad在Eclipse中叫View,Workench在SharpDevelop仅存在一个WorkbenchWindow.而在SharpDevelop有多个等等。