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
  29 #include <Carbon/Carbon.h>
  30
  31 // ============================================================================
  32 // wxEventLoop implementation
  33 // ============================================================================
  34
  35 // ----------------------------------------------------------------------------
  36 // high level functions for RunApplicationEventLoop() case
  37 // ----------------------------------------------------------------------------
  38
  39 #if wxMAC_USE_RUN_APP_EVENT_LOOP
  40
  41 int wxEventLoop::Run()
  42 {
  43     wxEventLoopActivator activate(this);
  44
  45     RunApplicationEventLoop();
  46
  47     return m_exitcode;
  48 }
  49
  50 void wxEventLoop::Exit(int rc)
  51 {
  52     m_exitcode = rc;
  53
  54     QuitApplicationEventLoop();
  55
  56     OnExit();
  57 }
  58
  59 #else // manual event loop
  60
  61 // ----------------------------------------------------------------------------
  62 // functions only used by wxEventLoopManual-based implementation
  63 // ----------------------------------------------------------------------------
  64
  65 void wxEventLoop::WakeUp()
  66 {
  67     extern void wxMacWakeUp();
  68
  69     wxMacWakeUp();
  70 }
  71
  72 #endif // high/low-level event loop
  73
  74 // ----------------------------------------------------------------------------
  75 // low level functions used in both cases
  76 // ----------------------------------------------------------------------------
  77
  78 bool wxEventLoop::Pending() const
  79 {
  80     EventRef theEvent;
  81
  82     return ReceiveNextEvent
  83            (
  84             0,          // we want any event at all so we don't specify neither
  85             NULL,       // the number of event types nor the types themselves
  86             kEventDurationNoWait,
  87             false,      // don't remove the event from queue
  88             &theEvent
  89            ) == noErr;
  90 }
  91
  92 bool wxEventLoop::Dispatch()
  93 {
  94     // TODO: we probably should do the dispatching directly from here but for
  95     //       now it's easier to forward to wxApp which has all the code to do
  96     //       it
  97     if ( !wxTheApp )
  98         return false;
  99
 100     wxTheApp->MacDoOneEvent();
 101     return true;
 102 }
 103