#if wxUSE_GUI
struct WXDLLIMPEXP_FWD_CORE wxVideoMode;
+ class WXDLLIMPEXP_FWD_CORE wxWindow;
#endif
// ----------------------------------------------------------------------------
// had been already processed or won't be processed at all, respectively
virtual int FilterEvent(wxEvent& event);
+ // return true if we're running event loop, i.e. if the events can
+ // (already) be dispatched
+ static bool IsMainLoopRunning();
+
#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
// exit, if you need to really handle the exceptions you need to override
// OnExceptionInMainLoop()
virtual void OnUnhandledException();
+
+ // 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
- // event processing functions
- // --------------------------
- // return true if we're running event loop, i.e. if the events can
- // (already) be dispatched
- static bool IsMainLoopRunning();
+ // wxEventLoop redirections
+ // ------------------------
- // 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 SuspendProcessingOfPendingEvents();
+ virtual void ResumeProcessingOfPendingEvents();
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 bool Pending();
+ virtual bool Dispatch();
- // 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();
+ bool Yield(bool onlyIfNeeded = 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 void WakeUpIdle();
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
// -----------------
// for the first time
virtual wxAppTraits *CreateTraits();
-
// function used for dynamic wxApp creation
static wxAppInitializerFunction ms_appInitFn;
// been started yet or has already terminated)
wxEventLoopBase *m_mainLoop;
+ 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__)
// the worker functions - usually not used directly by the user code
// -----------------------------------------------------------------
-
-
- // 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 the main thread is inside a Yield() call
- bool IsYielding() const
- { return m_isInsideYield; }
+ // safer alternatives to Yield(), using wxWindowDisabler
+ virtual bool SafeYield(wxWindow *win, bool onlyIfNeeded);
+ virtual bool SafeYieldFor(wxWindow *win, long eventsToProcess);
// this virtual function is called in the GUI mode when the application
// becomes idle and normally just sends wxIdleEvent to all interested
// does any of our windows have focus?
bool m_isActive;
- bool m_isInsideYield;
-
- DECLARE_NO_COPY_CLASS(wxAppBase)
+ wxDECLARE_NO_COPY_CLASS(wxAppBase);
};
#if WXWIN_COMPATIBILITY_2_6
// ------------------------------------------------------
// 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 declated by
+// 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
projects / wxWidgets.git / blobdiff