X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4055ed8281971e3d35bf04177193c27043d42ed1..333e57d578e9e0fb6555452b5a53698ffd85ee69:/include/wx/app.h diff --git a/include/wx/app.h b/include/wx/app.h index cb92cac14a..03bbad845a 100644 --- a/include/wx/app.h +++ b/include/wx/app.h @@ -18,30 +18,19 @@ // ---------------------------------------------------------------------------- #include "wx/event.h" // for the base class - -#if wxUSE_GUI - #include "wx/window.h" // for wxTopLevelWindows - - #include "wx/vidmode.h" -#endif // wxUSE_GUI - #include "wx/build.h" #include "wx/init.h" // we must declare wxEntry() +#include "wx/intl.h" // for wxLayoutDirection -class WXDLLIMPEXP_BASE wxAppConsole; -class WXDLLIMPEXP_BASE wxAppTraits; -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; +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 + struct WXDLLIMPEXP_FWD_CORE wxVideoMode; #endif // ---------------------------------------------------------------------------- @@ -62,15 +51,15 @@ enum }; // ---------------------------------------------------------------------------- -// wxAppConsole: wxApp for non-GUI applications +// wxAppConsoleBase: wxApp for non-GUI applications // ---------------------------------------------------------------------------- -class WXDLLIMPEXP_BASE wxAppConsole : public wxEvtHandler +class WXDLLIMPEXP_BASE wxAppConsoleBase : public wxEvtHandler { public: // ctor and dtor - wxAppConsole(); - virtual ~wxAppConsole(); + wxAppConsoleBase(); + virtual ~wxAppConsoleBase(); // the virtual functions which may/must be overridden in the derived class @@ -97,7 +86,7 @@ public: // This is the replacement for the normal main(): all program work should // be done here. When OnRun() returns, the programs starts shutting down. - virtual int OnRun() = 0; + virtual int OnRun(); // This is only called if OnInit() returned true so it's a good place to do // any cleanup matching the initializations done there. @@ -116,20 +105,6 @@ 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(); @@ -195,26 +170,9 @@ public: // either should be configurable by the user (then he can change the // default behaviour simply by overriding CreateTraits() and returning his // own traits object) or which is GUI/console dependent as then wxAppTraits - // allows us to abstract the differences behind the common façade + // allows us to abstract the differences behind the common fa�de wxAppTraits *GetTraits(); - // the functions below shouldn't be used now that we have wxAppTraits -#if WXWIN_COMPATIBILITY_2_4 - -#if wxUSE_LOG - // override this function to create default log target of arbitrary - // user-defined class (default implementation creates a wxLogGui - // object) -- this log object is used by default by all wxLogXXX() - // functions. - virtual wxLog *CreateLogTarget(); -#endif // wxUSE_LOG - - // similar to CreateLogTarget() but for the global wxMessageOutput - // object - virtual wxMessageOutput *CreateMessageOutput(); - -#endif // WXWIN_COMPATIBILITY_2_4 - // event processing functions // -------------------------- @@ -237,35 +195,86 @@ public: virtual void HandleEvent(wxEvtHandler *handler, wxEventFunction func, wxEvent& event) const; + + // Called when an unhandled C++ exception occurs inside OnRun(): note that + // the main event loop has already terminated by now and the program will + // exit, if you need to really handle the exceptions you need to override + // OnExceptionInMainLoop() + virtual void OnUnhandledException(); #endif // wxUSE_EXCEPTIONS + // event processing functions + // -------------------------- + + // return true if we're running event loop, i.e. if the events can + // (already) be dispatched + static bool IsMainLoopRunning(); + // 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 // also called directly. virtual void ProcessPendingEvents(); + // check if there are pending events on global pending event list + bool HasPendingEvents() const; + // doesn't do anything in this class, just a hook for GUI wxApp virtual bool Yield(bool WXUNUSED(onlyIfNeeded) = false) { return true; } // make sure that idle events are sent again - virtual void WakeUpIdle() { } + virtual void WakeUpIdle(); + + // execute the main GUI loop, the function returns when the loop ends + virtual int MainLoop(); + + // exit the main GUI loop during the next iteration (i.e. it does not + // stop the program immediately!) + virtual void ExitMainLoop(); + + // returns true if there are unprocessed events in the event queue + virtual bool Pending(); + + // process the first event in the event queue (blocks until an event + // 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(); - // this is just a convenience: by providing its implementation here we - // avoid #ifdefs in the code using it - static bool IsMainLoopRunning() { return false; } + // this virtual function is called when the application + // becomes idle and normally just sends wxIdleEvent to all interested + // parties + // + // it should return true if more idle events are needed, false if not + virtual bool ProcessIdle(); +#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(); +#endif // wxUSE_EXCEPTIONS // debugging support // ----------------- +#ifdef __WXDEBUG__ // this function is called when an assert failure occurs, the base class // version does the normal processing (i.e. shows the usual assert failure // dialog box) // - // the arguments are the place where the assert occured, the text of the + // the arguments are the location of the failed assert (func may be empty + // if the compiler doesn't support C99 __FUNCTION__), the text of the // assert itself and the user-specified message -#ifdef __WXDEBUG__ + virtual void OnAssertFailure(const wxChar *file, + int line, + const wxChar *func, + const wxChar *cond, + const wxChar *msg); + + // old version of the function without func parameter, for compatibility + // only, override OnAssertFailure() in the new code virtual void OnAssert(const wxChar *file, int line, const wxChar *cond, @@ -277,12 +286,6 @@ public: // options of the library and abort if it doesn't static bool CheckBuildOptions(const char *optionsSignature, const char *componentName); -#if WXWIN_COMPATIBILITY_2_4 - static bool CheckBuildOptions(const wxBuildOptions& buildOptions) - { - return CheckBuildOptions(buildOptions.m_signature, "your program"); - } -#endif // implementation only from now on // ------------------------------- @@ -317,6 +320,9 @@ protected: // the one and only global application object static wxAppConsole *ms_appInstance; + // create main loop from AppTraits or return NULL if + // there is no main loop implementation + wxEventLoopBase *CreateMainLoop(); // application info (must be set from the user code) wxString m_vendorName, // vendor name (ACME Inc) @@ -327,12 +333,22 @@ protected: // by GetTraits() when first needed wxAppTraits *m_traits; + // the main event loop of the application (may be NULL if the loop hasn't + // been started yet or has already terminated) + wxEventLoopBase *m_mainLoop; // the application object is a singleton anyhow, there is no sense in // copying it - DECLARE_NO_COPY_CLASS(wxAppConsole) + DECLARE_NO_COPY_CLASS(wxAppConsoleBase) }; +#if defined(__UNIX__) + #include "wx/unix/app.h" +#else + // this has to be a class and not a typedef as we forward declare it + class wxAppConsole : public wxAppConsoleBase { }; +#endif + // ---------------------------------------------------------------------------- // wxAppBase: the common part of wxApp implementations for all platforms // ---------------------------------------------------------------------------- @@ -380,36 +396,7 @@ public: // the worker functions - usually not used directly by the user code // ----------------------------------------------------------------- - // return true if we're running main loop, i.e. if the events can - // (already) be dispatched - static bool IsMainLoopRunning() - { -#if wxUSE_EVTLOOP_IN_APP - wxAppBase *app = wx_static_cast(wxAppBase *, GetInstance()); - return app && app->m_mainLoop != NULL; -#else - return false; -#endif - } - - // execute the main GUI loop, the function returns when the loop ends - 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(); - - // returns true if there are unprocessed events in the event queue - virtual bool Pending(); - // process the first event in the event queue (blocks until an event - // 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 // @@ -433,9 +420,6 @@ public: // Returns true if more idle time is requested. virtual bool SendIdleEvents(wxWindow* win, wxIdleEvent& event); - // Perform standard OnIdle behaviour: call from port's OnIdle - void OnIdle(wxIdleEvent& event); - // top level window functions // -------------------------- @@ -449,15 +433,7 @@ public: // return the "main" top level window (if it hadn't been set previously // with SetTopWindow(), will return just some top level window and, if // there are none, will return NULL) - virtual wxWindow *GetTopWindow() const - { - if (m_topWindow) - return m_topWindow; - else if (wxTopLevelWindows.GetCount() > 0) - return wxTopLevelWindows.GetFirst()->GetData(); - else - return (wxWindow *)NULL; - } + virtual wxWindow *GetTopWindow() const; // control the exit behaviour: by default, the program will exit the // main loop (and so, usually, terminate) when the last top-level @@ -474,15 +450,16 @@ public: // ------------------------------------------------------------------------ // Get display mode that is used use. This is only used in framebuffer - // wxWin ports (such as wxMGL). - virtual wxVideoMode GetDisplayMode() const { return wxVideoMode(); } + // wxWin ports (such as wxMGL or wxDFB). + virtual wxVideoMode GetDisplayMode() const; // Set display mode to use. This is only used in framebuffer wxWin - // ports (such as wxMGL). This method should be called from + // ports (such as wxMGL or wxDFB). This method should be called from // wxApp::OnInitGui virtual bool SetDisplayMode(const wxVideoMode& WXUNUSED(info)) { return true; } // set use of best visual flag (see below) - void SetUseBestVisual( bool flag ) { m_useBestVisual = flag; } + void SetUseBestVisual( bool flag, bool forceTrueColour = false ) + { m_useBestVisual = flag; m_forceTrueColour = forceTrueColour; } bool GetUseBestVisual() const { return m_useBestVisual; } // set/get printing mode: see wxPRINT_XXX constants. @@ -492,6 +469,10 @@ public: virtual void SetPrintMode(int WXUNUSED(mode)) { } int GetPrintMode() const { return wxPRINT_POSTSCRIPT; } + // Return the layout direction for the current locale or wxLayout_Default + // if it's unknown + virtual wxLayoutDirection GetLayoutDirection() const; + // command line parsing (GUI-specific) // ------------------------------------------------------------------------ @@ -509,11 +490,12 @@ public: // deactivated virtual void SetActive(bool isActive, wxWindow *lastFocus); +#if WXWIN_COMPATIBILITY_2_6 // OBSOLETE: don't use, always returns true // // returns true if the program is successfully initialized - bool Initialized() { return true; } - + wxDEPRECATED( bool Initialized() ); +#endif // WXWIN_COMPATIBILITY_2_6 protected: // delete all objects in wxPendingDelete list @@ -523,12 +505,6 @@ 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; @@ -543,46 +519,57 @@ protected: Yes } m_exitOnFrameDelete; - // true if the apps whats to use the best visual on systems where + // true if the app wants to use the best visual on systems where // more than one are available (Sun, SGI, XFree86 4.0 ?) bool m_useBestVisual; + // force TrueColour just in case "best" isn't TrueColour + bool m_forceTrueColour; - // does any of our windows has focus? + // does any of our windows have focus? bool m_isActive; DECLARE_NO_COPY_CLASS(wxAppBase) }; -#endif // wxUSE_GUI +#if WXWIN_COMPATIBILITY_2_6 + inline bool wxAppBase::Initialized() { return true; } +#endif // WXWIN_COMPATIBILITY_2_6 // ---------------------------------------------------------------------------- // now include the declaration of the real class // ---------------------------------------------------------------------------- -#if wxUSE_GUI - #if defined(__WXPALMOS__) - #include "wx/palmos/app.h" - #elif 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(__WXGTK__) - #include "wx/gtk/app.h" - #elif defined(__WXX11__) - #include "wx/x11/app.h" - #elif defined(__WXMAC__) - #include "wx/mac/app.h" - #elif defined(__WXCOCOA__) - #include "wx/cocoa/app.h" - #elif defined(__WXPM__) - #include "wx/os2/app.h" - #endif +#if defined(__WXPALMOS__) + #include "wx/palmos/app.h" +#elif 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__) + #include "wx/gtk/app.h" +#elif defined(__WXGTK__) + #include "wx/gtk1/app.h" +#elif defined(__WXX11__) + #include "wx/x11/app.h" +#elif defined(__WXMAC__) + #include "wx/mac/app.h" +#elif defined(__WXCOCOA__) + #include "wx/cocoa/app.h" +#elif defined(__WXPM__) + #include "wx/os2/app.h" +#endif + #else // !GUI - // allow using just wxApp (instead of wxAppConsole) in console programs - typedef wxAppConsole wxApp; + +// wxApp is defined in core and we cannot define another one in wxBase, +// so use the preprocessor to allow using wxApp in console programs too +#define wxApp wxAppConsole + #endif // GUI/!GUI // ---------------------------------------------------------------------------- @@ -598,7 +585,7 @@ protected: // // the cast is safe as in GUI build we only use wxApp, not wxAppConsole, and in // console mode it does nothing at all -#define wxTheApp ((wxApp *)wxApp::GetInstance()) +#define wxTheApp wx_static_cast(wxApp*, wxApp::GetInstance()) // ---------------------------------------------------------------------------- // global functions @@ -638,7 +625,7 @@ public: #define IMPLEMENT_WXWIN_MAIN_CONSOLE \ int main(int argc, char **argv) { return wxEntry(argc, argv); } -// port-specific header could have defined it already in some special wau +// 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) @@ -646,9 +633,12 @@ public: #ifdef __WXUNIVERSAL__ #include "wx/univ/theme.h" - #define IMPLEMENT_WX_THEME_SUPPORT \ - WX_USE_THEME(win32); \ - WX_USE_THEME(gtk); + #ifdef wxUNIV_DEFAULT_THEME + #define IMPLEMENT_WX_THEME_SUPPORT \ + WX_USE_THEME(wxUNIV_DEFAULT_THEME); + #else + #define IMPLEMENT_WX_THEME_SUPPORT + #endif #else #define IMPLEMENT_WX_THEME_SUPPORT #endif @@ -664,7 +654,8 @@ public: } \ wxAppInitializer \ wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp); \ - appname& wxGetApp() { return *(appname *)wxTheApp; } + DECLARE_APP(appname) \ + appname& wxGetApp() { return *wx_static_cast(appname*, wxApp::GetInstance()); } // Same as IMPLEMENT_APP() normally but doesn't include themes support in // wxUniversal builds @@ -687,5 +678,12 @@ public: // function #define DECLARE_APP(appname) extern appname& wxGetApp(); -#endif // _WX_APP_H_BASE_ +// declare the stuff defined by IMPLEMENT_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; + +#endif // _WX_APP_H_BASE_