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 #ifdef __DARWIN__
  31     #include <Carbon/Carbon.h>
  32 #else
  33     #include <Carbon.h>
  34 #endif
  35 // ============================================================================
  36 // wxEventLoop implementation
  37 // ============================================================================
  38
  39 // ----------------------------------------------------------------------------
  40 // high level functions for RunApplicationEventLoop() case
  41 // ----------------------------------------------------------------------------
  42
  43 #if wxMAC_USE_RUN_APP_EVENT_LOOP
  44
  45 int wxEventLoop::Run()
  46 {
  47     wxEventLoopActivator activate(this);
  48
  49     RunApplicationEventLoop();
  50
  51     return m_exitcode;
  52 }
  53
  54 void wxEventLoop::Exit(int rc)
  55 {
  56     m_exitcode = rc;
  57
  58     QuitApplicationEventLoop();
  59
  60     OnExit();
  61 }
  62
  63 #else // manual event loop
  64
  65 // ----------------------------------------------------------------------------
  66 // functions only used by wxEventLoopManual-based implementation
  67 // ----------------------------------------------------------------------------
  68
  69 void wxEventLoop::WakeUp()
  70 {
  71     extern void wxMacWakeUp();
  72
  73     wxMacWakeUp();
  74 }
  75
  76 #endif // high/low-level event loop
  77
  78 // ----------------------------------------------------------------------------
  79 // low level functions used in both cases
  80 // ----------------------------------------------------------------------------
  81
  82 bool wxEventLoop::Pending() const
  83 {
  84     EventRef theEvent;
  85
  86     return ReceiveNextEvent
  87            (
  88             0,          // we want any event at all so we don't specify neither
  89             NULL,       // the number of event types nor the types themselves
  90             kEventDurationNoWait,
  91             false,      // don't remove the event from queue
  92             &theEvent
  93            ) == noErr;
  94 }
  95
  96 bool wxEventLoop::Dispatch()
  97 {
  98     // TODO: we probably should do the dispatching directly from here but for
  99     //       now it's easier to forward to wxApp which has all the code to do
 100     //       it
 101     if ( !wxTheApp )
 102         return false;
 103
 104     wxTheApp->MacDoOneEvent();
 105     return true;
 106 }
 107