wxWidgets/include/wx/osx/evtloop.h

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///////////////////////////////////////////////////////////////////////////////
// Name: wx/osx/evtloop.h
// Purpose: simply forwards to wx/osx/carbon/evtloop.h or
// wx/osx/cocoa/evtloop.h for consistency with the other Mac
// headers
// Author: Vadim Zeitlin
// Modified by:
// Created: 2006-01-12
// RCS-ID: $Id$
// Copyright: (c) 2006 Vadim Zeitlin <vadim@wxwindows.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_OSX_EVTLOOP_H_
#define _WX_OSX_EVTLOOP_H_
DECLARE_WXOSX_OPAQUE_CFREF( CFRunLoop );
DECLARE_WXOSX_OPAQUE_CFREF( CFRunLoopObserver );
class WXDLLIMPEXP_BASE wxCFEventLoop : public wxEventLoopBase
{
public:
wxCFEventLoop();
virtual ~wxCFEventLoop();
// enters a loop calling OnNextIteration(), Pending() and Dispatch() and
// terminating when Exit() is called
virtual int Run();
// sets the "should exit" flag and wakes up the loop so that it terminates
// soon
virtual void Exit(int rc = 0);
// return true if any events are available
virtual bool Pending() const;
// dispatch a single event, return false if we should exit from the loop
virtual bool Dispatch();
// same as Dispatch() but doesn't wait for longer than the specified (in
// ms) timeout, return true if an event was processed, false if we should
// exit the loop or -1 if timeout expired
virtual int DispatchTimeout(unsigned long timeout);
// implement this to wake up the loop: usually done by posting a dummy event
// to it (can be called from non main thread)
virtual void WakeUp();
virtual bool YieldFor(long eventsToProcess);
#if wxUSE_EVENTLOOP_SOURCE
virtual wxEventLoopSource *
AddSourceForFD(int fd, wxEventLoopSourceHandler *handler, int flags);
#endif // wxUSE_EVENTLOOP_SOURCE
void ObserverCallBack(CFRunLoopObserverRef observer, int activity);
protected:
// get the currently executing CFRunLoop
virtual CFRunLoopRef CFGetCurrentRunLoop() const;
virtual int DoDispatchTimeout(unsigned long timeout);
virtual void DoRun();
virtual void DoStop();
// should we exit the loop?
bool m_shouldExit;
// the loop exit code
int m_exitcode;
// cfrunloop
CFRunLoopRef m_runLoop;
// runloop observer
CFRunLoopObserverRef m_runLoopObserver;
private:
// process all already pending events and dispatch a new one (blocking
// until it appears in the event queue if necessary)
//
// returns the return value of DoDispatchTimeout()
int DoProcessEvents();
};
#if wxUSE_GUI
#ifdef __WXOSX_COCOA__
#include "wx/osx/cocoa/evtloop.h"
#else
#include "wx/osx/carbon/evtloop.h"
#endif
class WXDLLIMPEXP_FWD_CORE wxWindow;
class WXDLLIMPEXP_FWD_CORE wxNonOwnedWindow;
class WXDLLIMPEXP_CORE wxModalEventLoop : public wxGUIEventLoop
{
public:
wxModalEventLoop(wxWindow *modalWindow);
wxModalEventLoop(WXWindow modalNativeWindow);
protected:
virtual void DoRun();
virtual void DoStop();
// (in case) the modal window for this event loop
wxNonOwnedWindow* m_modalWindow;
WXWindow m_modalNativeWindow;
};
#endif // wxUSE_GUI
#endif // _WX_OSX_EVTLOOP_H_