X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/657a8a359826e46a7fc458216403f54deca34989..a4301b8f14d21b7d28fc4f6a247b740d945ca6dc:/include/wx/app.h?ds=sidebyside diff --git a/include/wx/app.h b/include/wx/app.h index f754a7b117..a0fe4afee1 100644 --- a/include/wx/app.h +++ b/include/wx/app.h @@ -18,16 +18,17 @@ // ---------------------------------------------------------------------------- #include "wx/event.h" // for the base class +#include "wx/eventfilter.h" // (and another one) #include "wx/build.h" #include "wx/cmdargs.h" // for wxCmdLineArgsArray used by wxApp::argv #include "wx/init.h" // we must declare wxEntry() #include "wx/intl.h" // for wxLayoutDirection +#include "wx/log.h" // for wxDISABLE_DEBUG_LOGGING_IN_RELEASE_BUILD() class WXDLLIMPEXP_FWD_BASE wxAppConsole; class WXDLLIMPEXP_FWD_BASE wxAppTraits; class WXDLLIMPEXP_FWD_BASE wxCmdLineParser; class WXDLLIMPEXP_FWD_BASE wxEventLoopBase; -class WXDLLIMPEXP_FWD_BASE wxLog; class WXDLLIMPEXP_FWD_BASE wxMessageOutput; #if wxUSE_GUI @@ -35,6 +36,11 @@ class WXDLLIMPEXP_FWD_BASE wxMessageOutput; class WXDLLIMPEXP_FWD_CORE wxWindow; #endif +// this macro should be used in any main() or equivalent functions defined in wx +#define wxDISABLE_DEBUG_SUPPORT() \ + wxDISABLE_ASSERTS_IN_RELEASE_BUILD(); \ + wxDISABLE_DEBUG_LOGGING_IN_RELEASE_BUILD() + // ---------------------------------------------------------------------------- // typedefs // ---------------------------------------------------------------------------- @@ -52,11 +58,21 @@ enum wxPRINT_POSTSCRIPT = 2 }; +// ---------------------------------------------------------------------------- +// global variables +// ---------------------------------------------------------------------------- + +// use of this list is strongly deprecated, use wxApp ScheduleForDestruction() +// and IsScheduledForDestruction() methods instead of this list directly, it +// is here for compatibility purposes only +extern WXDLLIMPEXP_DATA_BASE(wxList) wxPendingDelete; + // ---------------------------------------------------------------------------- // wxAppConsoleBase: wxApp for non-GUI applications // ---------------------------------------------------------------------------- -class WXDLLIMPEXP_BASE wxAppConsoleBase : public wxEvtHandler +class WXDLLIMPEXP_BASE wxAppConsoleBase : public wxEvtHandler, + public wxEventFilter { public: // ctor and dtor @@ -127,22 +143,17 @@ public: // be argv[0] // set/get the application name - wxString GetAppName() const - { - return m_appName.empty() ? m_className : m_appName; - } + wxString GetAppName() const; void SetAppName(const wxString& name) { m_appName = name; } // set/get the application display name: the display name is the name // shown to the user in titles, reports, etc while the app name is // used for paths, config, and other places the user doesn't see // - // so the app name could be myapp while display name could be "My App" - wxString GetAppDisplayName() const - { - return m_appDisplayName.empty() ? GetAppName().Capitalize() - : m_appDisplayName; - } + // by default the display name is the same as app name or a capitalized + // version of the program if app name was not set neither but it's + // usually better to set it explicitly to something nicer + wxString GetAppDisplayName() const; void SetAppDisplayName(const wxString& name) { m_appDisplayName = name; } @@ -225,17 +236,24 @@ public: wxEventLoopBase* GetMainLoop() const { return m_mainLoop; } + // This function sets the C locale to the default locale for the current + // environment. It is advised to call this to ensure that the underlying + // toolkit uses the locale in which the numbers and monetary amounts are + // shown in the format expected by user and so on. + // + // Notice that this does _not_ change the global C++ locale, you need to do + // it explicitly if you want. + // + // Finally, notice that while this function is virtual, it is not supposed + // to be overridden outside of the library itself. + virtual void SetCLocale(); + // event processing functions // -------------------------- - // this method allows to filter all the events processed by the program, so - // you should try to return quickly from it to avoid slowing down the - // program to the crawl - // - // return value should be -1 to continue with the normal event processing, - // or TRUE or FALSE to stop further processing and pretend that the event - // had been already processed or won't be processed at all, respectively + // Implement the inherited wxEventFilter method but just return -1 from it + // to indicate that default processing should take place. virtual int FilterEvent(wxEvent& event); // return true if we're running event loop, i.e. if the events can @@ -317,9 +335,30 @@ public: void DeletePendingEvents(); - // wxEventLoop redirections - // ------------------------ + // delayed destruction + // ------------------- + + // If an object may have pending events for it, it shouldn't be deleted + // immediately as this would result in a crash when trying to handle these + // events: instead, it should be scheduled for destruction and really + // destroyed only after processing all pending events. + // + // Notice that this is only possible if we have a running event loop, + // otherwise the object is just deleted directly by ScheduleForDestruction() + // and IsScheduledForDestruction() always returns false. + + // schedule the object for destruction in the near future + void ScheduleForDestruction(wxObject *object); + + // return true if the object is scheduled for destruction + bool IsScheduledForDestruction(wxObject *object) const; + + // wxEventLoop-related methods + // --------------------------- + + // all these functions are forwarded to the corresponding methods of the + // currently active event loop -- and do nothing if there is none virtual bool Pending(); virtual bool Dispatch(); @@ -329,8 +368,21 @@ public: bool Yield(bool onlyIfNeeded = false); virtual void WakeUpIdle(); + + // this method is called by the active event loop when there are no events + // to process + // + // by default it generates the idle events and if you override it in your + // derived class you should call the base class version to ensure that idle + // events are still sent out virtual bool ProcessIdle(); + // this virtual function is overridden in GUI wxApp to always return true + // as GUI applications always have an event loop -- but console ones may + // have it or not, so it simply returns true if already have an event loop + // running but false otherwise + virtual bool UsesEventLoop() const; + // debugging support // ----------------- @@ -356,7 +408,7 @@ public: const wxChar *msg); // check that the wxBuildOptions object (constructed in the application - // itself, usually the one from IMPLEMENT_APP() macro) matches the build + // itself, usually the one from wxIMPLEMENT_APP() macro) matches the build // options of the library and abort if it doesn't static bool CheckBuildOptions(const char *optionsSignature, const char *componentName); @@ -392,6 +444,11 @@ public: #endif protected: + // delete all objects in wxPendingDelete list + // + // called from ProcessPendingEvents() + void DeletePendingObjects(); + // the function which creates the traits object when GetTraits() needs it // for the first time virtual wxAppTraits *CreateTraits(); @@ -449,7 +506,7 @@ protected: wxDECLARE_NO_COPY_CLASS(wxAppConsoleBase); }; -#if defined(__UNIX__) +#if defined(__UNIX__) && !defined(__WXMSW__) #include "wx/unix/app.h" #else // this has to be a class and not a typedef as we forward declare it @@ -514,9 +571,8 @@ public: // it should return true if more idle events are needed, false if not virtual bool ProcessIdle(); - // Send idle event to window and all subwindows - // Returns true if more idle time is requested. - virtual bool SendIdleEvents(wxWindow* win, wxIdleEvent& event); + // override base class version: GUI apps always use an event loop + virtual bool UsesEventLoop() const { return true; } // top level window functions @@ -548,10 +604,10 @@ public: // ------------------------------------------------------------------------ // Get display mode that is used use. This is only used in framebuffer - // wxWin ports (such as wxMGL or wxDFB). + // wxWin ports such as wxDFB. virtual wxVideoMode GetDisplayMode() const; // Set display mode to use. This is only used in framebuffer wxWin - // ports (such as wxMGL or wxDFB). This method should be called from + // ports such as wxDFB. This method should be called from // wxApp::OnInitGui virtual bool SetDisplayMode(const wxVideoMode& WXUNUSED(info)) { return true; } @@ -599,9 +655,6 @@ public: #endif // WXWIN_COMPATIBILITY_2_6 protected: - // delete all objects in wxPendingDelete list - void DeletePendingObjects(); - // override base class method to use GUI traits virtual wxAppTraits *CreateTraits(); @@ -640,14 +693,10 @@ protected: // now include the declaration of the real class // ---------------------------------------------------------------------------- -#if defined(__WXPALMOS__) - #include "wx/palmos/app.h" -#elif defined(__WXMSW__) +#if defined(__WXMSW__) #include "wx/msw/app.h" #elif defined(__WXMOTIF__) #include "wx/motif/app.h" -#elif defined(__WXMGL__) - #include "wx/mgl/app.h" #elif defined(__WXDFB__) #include "wx/dfb/app.h" #elif defined(__WXGTK20__) @@ -680,7 +729,7 @@ protected: // object of type wxApp // // note that instead of using of wxTheApp in application code you should -// consider using DECLARE_APP() after which you may call wxGetApp() which will +// consider using wxDECLARE_APP() after which you may call wxGetApp() which will // return the object of the correct type (i.e. MyApp and not wxApp) // // the cast is safe as in GUI build we only use wxApp, not wxAppConsole, and in @@ -725,34 +774,53 @@ public: { wxApp::SetInitializerFunction(fn); } }; -// the code below defines a IMPLEMENT_WXWIN_MAIN macro which you can use if +// the code below defines a wxIMPLEMENT_WXWIN_MAIN macro which you can use if // your compiler really, really wants main() to be in your main program (e.g. -// hello.cpp). Now IMPLEMENT_APP should add this code if required. - -#define IMPLEMENT_WXWIN_MAIN_CONSOLE \ - int main(int argc, char **argv) { return wxEntry(argc, argv); } +// hello.cpp). Now wxIMPLEMENT_APP should add this code if required. + +// For compilers that support it, prefer to use wmain() as this ensures any +// Unicode strings can be passed as command line parameters and not just those +// representable in the current locale. +#if wxUSE_UNICODE && defined(__VISUALC__) + #define wxIMPLEMENT_WXWIN_MAIN_CONSOLE \ + int wmain(int argc, wchar_t **argv) \ + { \ + wxDISABLE_DEBUG_SUPPORT(); \ + \ + return wxEntry(argc, argv); \ + } +#else // Use standard main() + #define wxIMPLEMENT_WXWIN_MAIN_CONSOLE \ + int main(int argc, char **argv) \ + { \ + wxDISABLE_DEBUG_SUPPORT(); \ + \ + return wxEntry(argc, argv); \ + } +#endif // port-specific header could have defined it already in some special way -#ifndef IMPLEMENT_WXWIN_MAIN - #define IMPLEMENT_WXWIN_MAIN IMPLEMENT_WXWIN_MAIN_CONSOLE -#endif // defined(IMPLEMENT_WXWIN_MAIN) +#ifndef wxIMPLEMENT_WXWIN_MAIN + #define wxIMPLEMENT_WXWIN_MAIN wxIMPLEMENT_WXWIN_MAIN_CONSOLE +#endif // defined(wxIMPLEMENT_WXWIN_MAIN) #ifdef __WXUNIVERSAL__ #include "wx/univ/theme.h" #ifdef wxUNIV_DEFAULT_THEME - #define IMPLEMENT_WX_THEME_SUPPORT \ + #define wxIMPLEMENT_WX_THEME_SUPPORT \ WX_USE_THEME(wxUNIV_DEFAULT_THEME); #else - #define IMPLEMENT_WX_THEME_SUPPORT + #define wxIMPLEMENT_WX_THEME_SUPPORT #endif #else - #define IMPLEMENT_WX_THEME_SUPPORT + #define wxIMPLEMENT_WX_THEME_SUPPORT #endif // Use this macro if you want to define your own main() or WinMain() function // and call wxEntry() from there. -#define IMPLEMENT_APP_NO_MAIN(appname) \ +#define wxIMPLEMENT_APP_NO_MAIN(appname) \ + appname& wxGetApp() { return *static_cast(wxApp::GetInstance()); } \ wxAppConsole *wxCreateApp() \ { \ wxAppConsole::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, \ @@ -760,37 +828,53 @@ public: return new appname; \ } \ wxAppInitializer \ - wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp); \ - DECLARE_APP(appname) \ - appname& wxGetApp() { return *static_cast(wxApp::GetInstance()); } + wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp) -// Same as IMPLEMENT_APP() normally but doesn't include themes support in +// Same as wxIMPLEMENT_APP() normally but doesn't include themes support in // wxUniversal builds -#define IMPLEMENT_APP_NO_THEMES(appname) \ - IMPLEMENT_APP_NO_MAIN(appname) \ - IMPLEMENT_WXWIN_MAIN +#define wxIMPLEMENT_APP_NO_THEMES(appname) \ + wxIMPLEMENT_WXWIN_MAIN \ + wxIMPLEMENT_APP_NO_MAIN(appname) // Use this macro exactly once, the argument is the name of the wxApp-derived // class which is the class of your application. -#define IMPLEMENT_APP(appname) \ - IMPLEMENT_APP_NO_THEMES(appname) \ - IMPLEMENT_WX_THEME_SUPPORT +#define wxIMPLEMENT_APP(appname) \ + wxIMPLEMENT_WX_THEME_SUPPORT \ + wxIMPLEMENT_APP_NO_THEMES(appname) // Same as IMPLEMENT_APP(), but for console applications. -#define IMPLEMENT_APP_CONSOLE(appname) \ - IMPLEMENT_APP_NO_MAIN(appname) \ - IMPLEMENT_WXWIN_MAIN_CONSOLE +#define wxIMPLEMENT_APP_CONSOLE(appname) \ + wxIMPLEMENT_WXWIN_MAIN_CONSOLE \ + wxIMPLEMENT_APP_NO_MAIN(appname) // this macro can be used multiple times and just allows you to use wxGetApp() // function -#define DECLARE_APP(appname) extern appname& wxGetApp(); +#define wxDECLARE_APP(appname) \ + extern appname& wxGetApp() -// declare the stuff defined by IMPLEMENT_APP() macro, it's not really needed +// declare the stuff defined by wxIMPLEMENT_APP() macro, it's not really needed // anywhere else but at the very least it suppresses icc warnings about // defining extern symbols without prior declaration, and it shouldn't do any // harm extern wxAppConsole *wxCreateApp(); extern wxAppInitializer wxTheAppInitializer; +// ---------------------------------------------------------------------------- +// Compatibility macro aliases +// ---------------------------------------------------------------------------- + +// deprecated variants _not_ requiring a semicolon after them +// (note that also some wx-prefixed macro do _not_ require a semicolon because +// it's not always possible to force the compire to require it) + +#define IMPLEMENT_WXWIN_MAIN_CONSOLE wxIMPLEMENT_WXWIN_MAIN_CONSOLE +#define IMPLEMENT_WXWIN_MAIN wxIMPLEMENT_WXWIN_MAIN +#define IMPLEMENT_WX_THEME_SUPPORT wxIMPLEMENT_WX_THEME_SUPPORT +#define IMPLEMENT_APP_NO_MAIN(app) wxIMPLEMENT_APP_NO_MAIN(app); +#define IMPLEMENT_APP_NO_THEMES(app) wxIMPLEMENT_APP_NO_THEMES(app); +#define IMPLEMENT_APP(app) wxIMPLEMENT_APP(app); +#define IMPLEMENT_APP_CONSOLE(app) wxIMPLEMENT_APP_CONSOLE(app); +#define DECLARE_APP(app) wxDECLARE_APP(app); + #endif // _WX_APP_H_BASE_