// 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
//
// 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
+ // ------------------------
- // 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();
-
- // check if there are pending events on global pending event list
bool HasPendingEvents() const;
- // 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();
+ bool Yield(bool onlyIfNeeded = false);
- // 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 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
-
- // 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
// -----------------
// 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;
// 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
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; }
-
- // 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
// parties
// does any of our windows have focus?
bool m_isActive;
- // Yield() helpers:
- bool m_isInsideYield;
- long m_eventsToProcessInsideYield;
-
wxDECLARE_NO_COPY_CLASS(wxAppBase);
};
projects / wxWidgets.git / blobdiff