X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9ce43bfae9c8245d620c9bd7cca50b8fa9d88e38..718e35a651487b43ab21b15f0bbdf5318c3cad1f:/include/wx/app.h diff --git a/include/wx/app.h b/include/wx/app.h index 07d930dff4..887ddbdaad 100644 --- a/include/wx/app.h +++ b/include/wx/app.h @@ -21,6 +21,8 @@ #if wxUSE_GUI #include "wx/window.h" // for wxTopLevelWindows + + #include "wx/vidmode.h" #endif // wxUSE_GUI #include "wx/build.h" @@ -32,6 +34,16 @@ class WXDLLIMPEXP_BASE wxCmdLineParser; class WXDLLIMPEXP_BASE wxLog; class WXDLLIMPEXP_BASE wxMessageOutput; +// wxUSE_EVTLOOP_IN_APP is a temporary hack needed until all ports are updated +// to use wxEventLoop, otherwise we get linking errors on wxMac, it's going to +// disappear a.s.a.p. +#ifdef __WXMAC__ + #define wxUSE_EVTLOOP_IN_APP 0 +#else + #define wxUSE_EVTLOOP_IN_APP 1 + class WXDLLEXPORT wxEventLoop; +#endif + // ---------------------------------------------------------------------------- // typedefs // ---------------------------------------------------------------------------- @@ -49,33 +61,6 @@ enum wxPRINT_POSTSCRIPT = 2 }; -// ---------------------------------------------------------------------------- -// support for framebuffer ports -// ---------------------------------------------------------------------------- - -#if wxUSE_GUI -// VS: Fullscreen/framebuffer application needs to choose display mode prior -// to wxWindows initialization. This class holds information about display -// mode. It is used by wxApp::Set/GetDisplayMode. -class WXDLLIMPEXP_CORE wxDisplayModeInfo -{ -public: - wxDisplayModeInfo() : m_ok(FALSE) {} - wxDisplayModeInfo(unsigned width, unsigned height, unsigned depth) - : m_width(width), m_height(height), m_depth(depth), m_ok(TRUE) {} - - unsigned GetWidth() const { return m_width; } - unsigned GetHeight() const { return m_height; } - unsigned GetDepth() const { return m_depth; } - bool IsOk() const { return m_ok; } - -private: - unsigned m_width, m_height, m_depth; - bool m_ok; -}; -#endif // wxUSE_GUI - - // ---------------------------------------------------------------------------- // wxAppConsole: wxApp for non-GUI applications // ---------------------------------------------------------------------------- @@ -107,7 +92,7 @@ public: // class OnInit() to do it. virtual bool OnInit(); - // this is here only temproary hopefully (FIXME) + // this is here only temporary hopefully (FIXME) virtual bool OnInitGui() { return true; } // This is the replacement for the normal main(): all program work should @@ -131,6 +116,20 @@ public: // crash. virtual void OnFatalException() { } +#if wxUSE_EXCEPTIONS + // function called if an uncaught exception is caught inside the main + // event loop: it may return true to continue running the event loop or + // false to stop it (in the latter case it may rethrow the exception as + // well) + virtual bool OnExceptionInMainLoop(); + + // Called when an unhandled C++ exception occurs inside OnRun(): note that + // the exception type is lost by now, so if you really want to handle the + // exception you should override OnRun() and put a try/catch around + // MainLoop() call there + virtual void OnUnhandledException() { } +#endif // wxUSE_EXCEPTIONS + // Called from wxExit() function, should terminate the application a.s.a.p. virtual void Exit(); @@ -229,6 +228,17 @@ public: // had been already processed or won't be processed at all, respectively virtual int FilterEvent(wxEvent& event); +#if wxUSE_EXCEPTIONS + // call the specified handler on the given object with the given event + // + // this method only exists to allow catching the exceptions thrown by any + // event handler, it would lead to an extra (useless) virtual function call + // if the exceptions were not used, so it doesn't even exist in that case + virtual void HandleEvent(wxEvtHandler *handler, + wxEventFunction func, + wxEvent& event) const; +#endif // wxUSE_EXCEPTIONS + // process all events in the wxPendingEvents list -- it is necessary to // call this function to process posted events. This happens during each // event loop iteration in GUI mode but if there is no main loop, it may be @@ -367,24 +377,23 @@ public: // ----------------------------------------------------------------- // execute the main GUI loop, the function returns when the loop ends - virtual int MainLoop() = 0; + virtual int MainLoop(); // exit the main loop thus terminating the application virtual void Exit(); // exit the main GUI loop during the next iteration (i.e. it does not // stop the program immediately!) - virtual void ExitMainLoop() = 0; - - // returns TRUE if the program is initialized - virtual bool Initialized() = 0; + virtual void ExitMainLoop(); // returns TRUE if there are unprocessed events in the event queue - virtual bool Pending() = 0; + virtual bool Pending(); // process the first event in the event queue (blocks until an event - // apperas if there are none currently) - virtual void Dispatch() = 0; + // appears if there are none currently, use Pending() if this is not + // wanted), returns false if the event loop should stop and true + // otherwise + virtual bool Dispatch(); // process all currently pending events right now // @@ -402,7 +411,7 @@ public: // parties // // it should return TRUE if more idle events are needed, FALSE if not - virtual bool ProcessIdle() ; + virtual bool ProcessIdle(); // Send idle event to window and all subwindows // Returns TRUE if more idle time is requested. @@ -450,11 +459,11 @@ public: // Get display mode that is used use. This is only used in framebuffer // wxWin ports (such as wxMGL). - virtual wxDisplayModeInfo GetDisplayMode() const { return wxDisplayModeInfo(); } + virtual wxVideoMode GetDisplayMode() const { return wxVideoMode(); } // Set display mode to use. This is only used in framebuffer wxWin // ports (such as wxMGL). This method should be called from // wxApp::OnInitGui - virtual bool SetDisplayMode(const wxDisplayModeInfo& WXUNUSED(info)) { return TRUE; } + virtual bool SetDisplayMode(const wxVideoMode& WXUNUSED(info)) { return TRUE; } // set use of best visual flag (see below) void SetUseBestVisual( bool flag ) { m_useBestVisual = flag; } @@ -484,6 +493,11 @@ public: // deactivated virtual void SetActive(bool isActive, wxWindow *lastFocus); + // OBSOLETE: don't use, always returns true + // + // returns true if the program is successfully initialized + bool Initialized() { return true; } + protected: // delete all objects in wxPendingDelete list @@ -493,6 +507,12 @@ protected: virtual wxAppTraits *CreateTraits(); +#if wxUSE_EVTLOOP_IN_APP + // the main event loop of the application (may be NULL if the loop hasn't + // been started yet or has already terminated) + wxEventLoop *m_mainLoop; +#endif // wxUSE_EVTLOOP_IN_APP + // the main top level window (may be NULL) wxWindow *m_topWindow; @@ -593,38 +613,17 @@ public: { wxApp::SetInitializerFunction(fn); } }; -// Here's a macro 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. +// the code below defines a IMPLEMENT_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. -#if !wxUSE_GUI || !defined(__WXMSW__) - #define IMPLEMENT_WXWIN_MAIN \ +#define IMPLEMENT_WXWIN_MAIN_CONSOLE \ int main(int argc, char **argv) { return wxEntry(argc, argv); } -#elif defined(__WXMSW__) - // we need HINSTANCE declaration to define WinMain() - #include "wx/msw/wrapwin.h" - - #ifdef SW_SHOWNORMAL - #define wxSW_SHOWNORMAL SW_SHOWNORMAL - #else - #define wxSW_SHOWNORMAL 0 - #endif - #define IMPLEMENT_WXWIN_MAIN \ - extern int wxEntry(HINSTANCE hInstance, \ - HINSTANCE hPrevInstance = NULL, \ - char *pCmdLine = NULL, \ - int nCmdShow = wxSW_SHOWNORMAL); \ - extern "C" int WINAPI WinMain(HINSTANCE hInstance, \ - HINSTANCE hPrevInstance, \ - char *lpCmdLine, \ - int nCmdShow) \ - { \ - return wxEntry(hInstance, hPrevInstance, lpCmdLine, nCmdShow); \ - } -#else - #define IMPLEMENT_WXWIN_MAIN -#endif +// port-specific header could have defined it already in some special wau +#ifndef IMPLEMENT_WXWIN_MAIN + #define IMPLEMENT_WXWIN_MAIN IMPLEMENT_WXWIN_MAIN_CONSOLE +#endif // defined(IMPLEMENT_WXWIN_MAIN) #ifdef __WXUNIVERSAL__ #include "wx/univ/theme.h" @@ -661,6 +660,11 @@ public: IMPLEMENT_APP_NO_THEMES(appname) \ IMPLEMENT_WX_THEME_SUPPORT +// Same as IMPLEMENT_APP(), but for console applications. +#define IMPLEMENT_APP_CONSOLE(appname) \ + IMPLEMENT_APP_NO_MAIN(appname) \ + IMPLEMENT_WXWIN_MAIN_CONSOLE + // this macro can be used multiple times and just allows you to use wxGetApp() // function #define DECLARE_APP(appname) extern appname& wxGetApp();