代码工厂@Code Blocks Forge

转载请注明出处，该文章来源于cbforge.com by Bryan Wu. CodeLite IDE的主应用程序类实现在文件 /liteeditor/app.cpp中，系统初始化时，从wxApp继承的App类会调用OnInit成员函数，bool App::OnInit()

1. If it is Linux or MAC system, block signal pipe first;
2. wxSocketBase::Initialize();
3. 打开fatal exception handler，假如系统crash，会调用wxApp::OnFatalException，在此处可以采集一些调试信息；
4. InitXmlResource：通过wxMemoryFSHandler加载资源文件到内存，包括很多PNG文件和xml文件；
5. 调用wxCmdLineParser解析命令行参数，命令行描述如下：
   

   假如是h，会打印帮助并推出，如果有b，重新设置basedir。static const wxCmdLineEntryDesc cmdLineDesc[] = {
       {wxCMD_LINE_SWITCH, “v“, “version”, “Print current version”, wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
       {wxCMD_LINE_SWITCH, “h“, “help”, “Print usage”, wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
       {wxCMD_LINE_OPTION, “l“, “line”, “Open the file at a given line number”, wxCMD_LINE_VAL_NUMBER, wxCMD_LINE_PARAM_OPTIONAL },
       {wxCMD_LINE_OPTION, “b“, “basedir”,  “The base directory of CodeLite”, wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_OPTIONAL },
       {wxCMD_LINE_PARAM,  NULL, NULL, “Input file”, wxCMD_LINE_VAL_STRING, wxCMD_LINE_PARAM_MULTIPLE|wxCMD_LINE_PARAM_OPTIONAL },
       {wxCMD_LINE_NONE }
   };

    

6. 设置各种目录，包括homeDir，installPath，CurDir，StartupDir等；
7. Load Menu resource, rc/menu.xrc
8. Initialize the configuration file locater，ConfFileLocator::Instance()->Initialize
9. 初始化Manager类，该类从Singleton Pattern template而来；
10. read the last frame size from the configuration file and initialise editor configuration files;
11. 加入SingleInstance为真，我们需要通过调用wxSingleInstanceChecker来检查CodeLite运行实例是否唯一；
12. Update PATH environment variable with the install directory and MinGW default installation (if exists)
13. 显示splash screen，图片存储在 /images/splashscreen.png（可选，配置在GeneralInfo中）
14. 重头戏来了，Frame::Initialize，初始化Frame中会包括很多内容，下面详述；
15. update the accelerators table；
16. 显示由第14步初始化的Frame并置为top window；
17. 刚才第5步中解析的结果中如果有line,和input file，会依次打开并跳转至line-1行；
18. 最后一步：通过wxLogMessage打印Install path和Startup Path信息，Over。

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By Bryan Wu @ CBForge (cbforge at gmail dot com)转载请保留

 指定命令行参数可以在Windows和Unix下实现，CB在启动并初始化时会读入这些参数并执行相应的动作。

也许在usb portal IDE的实现上也能发挥作用。

<filename> [指定要打开的工程或者项目文件名]
Specifies the project *.cbp filename or workspace *.workspace filename. For instance <filename> may be c:\some\where\a\project.cbp. Place this argument at end of command line, just before output redirection if any.

–file=<filename>[:line] [指定要打开的文件名， 也可指定行号可直接跳到该行]
Open file in Code::Blocks and optionally jump to a specific line.

/h, –help, /?, –?
Shows a help message about the command line arguments.

/na, –no-check-associations
Don’t perform any file association checks (Windows only).

/nd, –no-dde
Don’t start a DDE server (Windows only).

/ns, –no-splash-screen
Hides the splash screen when the application is loading.

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