X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/180b5b4827d08f1ac13bbb5eca03f775ab35a0b1..05112735c29d896a101918aacd2224b54f6dd653:/include/wx/app.h diff --git a/include/wx/app.h b/include/wx/app.h index ccd8ef978c..a5b60fed2b 100644 --- a/include/wx/app.h +++ b/include/wx/app.h @@ -32,6 +32,7 @@ class WXDLLIMPEXP_FWD_BASE wxMessageOutput; #if wxUSE_GUI struct WXDLLIMPEXP_FWD_CORE wxVideoMode; + class WXDLLIMPEXP_FWD_CORE wxWindow; #endif // ---------------------------------------------------------------------------- @@ -131,8 +132,10 @@ public: // so the app name could be myapp while display name could be "My App" wxString GetAppDisplayName() const { - return m_appDisplayName.empty() ? GetAppName() : m_appDisplayName; + return m_appDisplayName.empty() ? GetAppName().Capitalize() + : m_appDisplayName; } + void SetAppDisplayName(const wxString& name) { m_appDisplayName = name; } // set/get the app class name @@ -195,9 +198,16 @@ 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 fa�de + // allows us to abstract the differences behind the common facade wxAppTraits *GetTraits(); + // this function provides safer access to traits object than + // wxTheApp->GetTraits() during startup or termination when the global + // application object itself may be unavailable + // + // of course, it still returns NULL in this case and the caller must check + // for it + static wxAppTraits *GetTraitsIfExists(); // event processing functions // -------------------------- @@ -212,6 +222,16 @@ public: virtual int FilterEvent(wxEvent& event); #if wxUSE_EXCEPTIONS + // execute the functor to handle the given event + // + // this is a generalization of HandleEvent() below and the base class + // implementation of CallEventHandler() still calls HandleEvent() for + // compatibility for functors which are just wxEventFunctions (i.e. methods + // of wxEvtHandler) + virtual void CallEventHandler(wxEvtHandler *handler, + wxEventFunctor& functor, + wxEvent& event) const; + // call the specified handler on the given object with the given event // // this method only exists to allow catching the exceptions thrown by any @@ -235,8 +255,15 @@ public: // (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 + // temporary suspends processing of the pending events + virtual void SuspendProcessingOfPendingEvents(); + + // resume processing of the pending events previously stopped because of a + // call to SuspendProcessingOfPendingEvents() + virtual void ResumeProcessingOfPendingEvents(); + + // process all events in the wxHandlersWithPendingEvents 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(); @@ -244,9 +271,6 @@ public: // 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(); @@ -281,6 +305,30 @@ public: virtual bool OnExceptionInMainLoop(); #endif // wxUSE_EXCEPTIONS + // Yield-related hooks + // ------------------- + + // process all currently pending events right now + // + // it is an error to call Yield() recursively unless the value of + // onlyIfNeeded is true + // + // WARNING: this function is dangerous as it can lead to unexpected + // reentrancies (i.e. when called from an event handler it + // may result in calling the same event handler again), use + // with _extreme_ care or, better, don't use at all! + // NOTE: in wxConsoleBase it doesn't do anything, just a hook for GUI wxApp + bool Yield(bool onlyIfNeeded = false) + { return DoYield(onlyIfNeeded, wxEVT_CATEGORY_ALL); } + bool YieldFor(long eventsToProcess) + { return DoYield(true, eventsToProcess); } + virtual bool IsYielding() const + { return false; } + virtual bool IsEventAllowedInsideYield(wxEventCategory WXUNUSED(cat)) const + { return true; } + // no SafeYield hooks since it uses wxWindow which is not available when wxUSE_GUI=0 + + // debugging support // ----------------- @@ -347,6 +395,9 @@ protected: // for the first time virtual wxAppTraits *CreateTraits(); + // the real yield function hook: + virtual bool DoYield(bool WXUNUSED(onlyIfNeeded), long WXUNUSED(eventsToProcess)) + { return true; } // function used for dynamic wxApp creation static wxAppInitializerFunction ms_appInitFn; @@ -373,9 +424,18 @@ protected: // been started yet or has already terminated) wxEventLoopBase *m_mainLoop; + // the array of the handlers with pending events which needs to be processed + // inside ProcessPendingEvents() + // wxEvtHandlerArray m_handlersWithPendingEvents; FIXME: enable this and remove global lists + + // helper array used by ProcessPendingEvents() + // wxEvtHandlerArray m_handlersWithPendingDelayedEvents; FIXME: enable this and remove global lists + + friend class WXDLLIMPEXP_FWD_BASE wxEvtHandler; + // the application object is a singleton anyhow, there is no sense in // copying it - DECLARE_NO_COPY_CLASS(wxAppConsoleBase) + wxDECLARE_NO_COPY_CLASS(wxAppConsoleBase); }; #if defined(__UNIX__) @@ -432,18 +492,18 @@ public: // the worker functions - usually not used directly by the user code // ----------------------------------------------------------------- + // safer alternatives to Yield(), using wxWindowDisabler + virtual bool SafeYield(wxWindow *win, bool onlyIfNeeded); + virtual bool SafeYieldFor(wxWindow *win, long eventsToProcess); + // returns true if the main thread is inside a Yield() call + virtual bool IsYielding() const + { return m_isInsideYield; } - // process all currently pending events right now - // - // it is an error to call Yield() recursively unless the value of - // onlyIfNeeded is true - // - // WARNING: this function is dangerous as it can lead to unexpected - // reentrancies (i.e. when called from an event handler it - // may result in calling the same event handler again), use - // with _extreme_ care or, better, don't use at all! - virtual bool Yield(bool onlyIfNeeded = false) = 0; + // returns true if events of the given event category should be immediately + // processed inside a wxApp::Yield() call or rather should be queued for + // later processing by the main event loop + virtual bool IsEventAllowedInsideYield(wxEventCategory cat) const; // this virtual function is called in the GUI mode when the application // becomes idle and normally just sends wxIdleEvent to all interested @@ -509,6 +569,9 @@ public: // if it's unknown virtual wxLayoutDirection GetLayoutDirection() const; + // Change the theme used by the application, return true on success. + virtual bool SetNativeTheme(const wxString& WXUNUSED(theme)) { return false; } + // command line parsing (GUI-specific) // ------------------------------------------------------------------------ @@ -564,8 +627,11 @@ protected: // does any of our windows have focus? bool m_isActive; + // Yield() helpers: + bool m_isInsideYield; + long m_eventsToProcessInsideYield; - DECLARE_NO_COPY_CLASS(wxAppBase) + wxDECLARE_NO_COPY_CLASS(wxAppBase); }; #if WXWIN_COMPATIBILITY_2_6 @@ -593,7 +659,7 @@ protected: #elif defined(__WXX11__) #include "wx/x11/app.h" #elif defined(__WXMAC__) - #include "wx/mac/app.h" + #include "wx/osx/app.h" #elif defined(__WXCOCOA__) #include "wx/cocoa/app.h" #elif defined(__WXPM__) @@ -621,7 +687,7 @@ 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 wx_static_cast(wxApp*, wxApp::GetInstance()) +#define wxTheApp static_cast(wxApp::GetInstance()) // ---------------------------------------------------------------------------- // global functions @@ -631,13 +697,20 @@ protected: // ------------------------------------------------------ // Force an exit from main loop -extern void WXDLLIMPEXP_BASE wxExit(); +WXDLLIMPEXP_BASE void wxExit(); + +// avoid redeclaring this function here if it had been already declared by +// wx/utils.h, this results in warnings from g++ with -Wredundant-decls +#ifndef wx_YIELD_DECLARED +#define wx_YIELD_DECLARED // Yield to other apps/messages -extern bool WXDLLIMPEXP_BASE wxYield(); +WXDLLIMPEXP_CORE bool wxYield(); + +#endif // wx_YIELD_DECLARED // Yield to other apps/messages -extern void WXDLLIMPEXP_BASE wxWakeUpIdle(); +WXDLLIMPEXP_BASE void wxWakeUpIdle(); // ---------------------------------------------------------------------------- // macros for dynamic creation of the application object @@ -691,7 +764,7 @@ public: wxAppInitializer \ wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp); \ DECLARE_APP(appname) \ - appname& wxGetApp() { return *wx_static_cast(appname*, wxApp::GetInstance()); } + appname& wxGetApp() { return *static_cast(wxApp::GetInstance()); } // Same as IMPLEMENT_APP() normally but doesn't include themes support in // wxUniversal builds