include/wx/gtk/evtloop.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/gtk/evtloop.h
   3 // Purpose:     wxGTK event loop implementation
   4 // Author:      Vadim Zeitlin
   5 // Created:     2008-12-27
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_GTK_EVTLOOP_H_
  12 #define _WX_GTK_EVTLOOP_H_
  13
  14 // ----------------------------------------------------------------------------
  15 // wxGUIEventLoop for wxGTK
  16 // ----------------------------------------------------------------------------
  17
  18 typedef union  _GdkEvent        GdkEvent;
  19
  20 #if wxUSE_EVENTLOOP_SOURCE
  21 // maps event loop sources to gtk source ids
  22 WX_DECLARE_HASH_MAP(wxUnixEventLoopSource*, int, wxPointerHash, wxPointerEqual,
  23                     wxEventLoopSourceIdMap);
  24 #endif
  25
  26 class WXDLLIMPEXP_BASE wxGUIEventLoop : public wxEventLoopBase
  27 {
  28 public:
  29     typedef wxUnixEventLoopSource Source;
  30
  31     wxGUIEventLoop();
  32
  33     virtual int Run();
  34     virtual void Exit(int rc = 0);
  35     virtual bool Pending() const;
  36     virtual bool Dispatch();
  37     virtual int DispatchTimeout(unsigned long timeout);
  38     virtual void WakeUp();
  39     virtual bool YieldFor(long eventsToProcess);
  40
  41     void StoreGdkEventForLaterProcessing(GdkEvent* ev)
  42         { m_arrGdkEvents.Add(ev); }
  43
  44 #if wxUSE_EVENTLOOP_SOURCE
  45     virtual wxUnixEventLoopSource* CreateSource() const
  46     {
  47         return new wxUnixEventLoopSource();
  48     }
  49
  50     virtual wxUnixEventLoopSource* CreateSource(int res,
  51                                            wxEventLoopSourceHandler* handler,
  52                                            int flags) const
  53     {
  54         return new wxUnixEventLoopSource(res, handler, flags);
  55     }
  56 #endif
  57
  58 protected:
  59 #if wxUSE_EVENTLOOP_SOURCE
  60     // adding/removing sources
  61     virtual bool DoAddSource(wxAbstractEventLoopSource* source);
  62     virtual bool DoRemoveSource(wxAbstractEventLoopSource* source);
  63
  64     // map of event loop sources gtk ids
  65     wxEventLoopSourceIdMap m_sourceIdMap;
  66 #endif
  67
  68     // the exit code of this event loop
  69     int m_exitcode;
  70
  71     // used to temporarily store events in DoYield()
  72     wxArrayPtrVoid m_arrGdkEvents;
  73
  74     wxDECLARE_NO_COPY_CLASS(wxGUIEventLoop);
  75 };
  76
  77 #endif // _WX_GTK_EVTLOOP_H_