include/wx/evtloop.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/evtloop.h
   3 // Purpose:     declares wxEventLoop class
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     01.06.01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_EVTLOOP_H_
  13 #define _WX_EVTLOOP_H_
  14
  15 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  16     #pragma interface "evtloop.h"
  17 #endif
  18
  19 // ----------------------------------------------------------------------------
  20 // wxEventLoop: a GUI event loop
  21 // ----------------------------------------------------------------------------
  22
  23 class WXDLLEXPORT wxEventLoop
  24 {
  25 public:
  26     // ctor
  27     wxEventLoop() { m_impl = NULL; }
  28
  29     // dtor
  30     virtual ~wxEventLoop();
  31
  32     // start the event loop, return the exit code when it is finished
  33     virtual int Run();
  34
  35     // exit from the loop with the given exit code
  36     virtual void Exit(int rc = 0);
  37
  38     // return TRUE if any events are available
  39     virtual bool Pending() const;
  40
  41     // dispatch a single event, return FALSE if we should exit from the loop
  42     virtual bool Dispatch();
  43
  44     // is the event loop running now?
  45     virtual bool IsRunning() const;
  46
  47     // return currently active (running) event loop, may be NULL
  48     static wxEventLoop *GetActive() { return ms_activeLoop; }
  49
  50     // set currently active (running) event loop
  51     static void SetActive(wxEventLoop* loop) { ms_activeLoop = loop; }
  52
  53 protected:
  54     // the pointer to the port specific implementation class
  55     class WXDLLEXPORT wxEventLoopImpl *m_impl;
  56     // the pointer to currently active loop
  57     static wxEventLoop *ms_activeLoop;
  58
  59     DECLARE_NO_COPY_CLASS(wxEventLoop)
  60 };
  61
  62 #endif // _WX_EVTLOOP_H_