src/mac/carbon/evtloop.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        mac/carbon/evtloop.cpp
   3 // Purpose:     implementation of wxEventLoop for wxMac
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     2006-01-12
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2006 Vadim Zeitlin <vadim@wxwindows.org>
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // for compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #include "wx/evtloop.h"
  28 #include "wx/app.h"
  29
  30 #include <Carbon/Carbon.h>
  31
  32 // ============================================================================
  33 // wxEventLoop implementation
  34 // ============================================================================
  35
  36 // ----------------------------------------------------------------------------
  37 // high level functions for RunApplicationEventLoop() case
  38 // ----------------------------------------------------------------------------
  39
  40 #if wxMAC_USE_RUN_APP_EVENT_LOOP
  41
  42 int wxEventLoop::Run()
  43 {
  44     wxEventLoopActivator activate(this);
  45
  46     RunApplicationEventLoop();
  47
  48     return m_exitcode;
  49 }
  50
  51 void wxEventLoop::Exit(int rc)
  52 {
  53     m_exitcode = rc;
  54
  55     QuitApplicationEventLoop();
  56
  57     OnExit();
  58 }
  59
  60 #else // manual event loop
  61
  62 // ----------------------------------------------------------------------------
  63 // functions only used by wxEventLoopManual-based implementation
  64 // ----------------------------------------------------------------------------
  65
  66 void wxEventLoop::WakeUp()
  67 {
  68     extern void wxMacWakeUp();
  69
  70     wxMacWakeUp();
  71 }
  72
  73 #endif // high/low-level event loop
  74
  75 // ----------------------------------------------------------------------------
  76 // low level functions used in both cases
  77 // ----------------------------------------------------------------------------
  78
  79 bool wxEventLoop::Pending() const
  80 {
  81     EventRef theEvent;
  82
  83     return ReceiveNextEvent
  84            (
  85             0,          // we want any event at all so we don't specify neither
  86             NULL,       // the number of event types nor the types themselves
  87             kEventDurationNoWait,
  88             false,      // don't remove the event from queue
  89             &theEvent
  90            ) == noErr;
  91 }
  92
  93 bool wxEventLoop::Dispatch()
  94 {
  95     // TODO: we probably should do the dispatching directly from here but for
  96     //       now it's easier to forward to wxApp which has all the code to do
  97     //       it
  98     if ( !wxTheApp )
  99         return false;
 100
 101     wxTheApp->MacDoOneEvent();
 102     return true;
 103 }
 104