src/mac/carbon/evtloop.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/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 #ifndef WX_PRECOMP
  30     #include "wx/app.h"
  31 #endif // WX_PRECOMP
  32
  33 #ifdef __DARWIN__
  34     #include <Carbon/Carbon.h>
  35 #else
  36     #include <Carbon.h>
  37 #endif
  38 // ============================================================================
  39 // wxEventLoop implementation
  40 // ============================================================================
  41
  42 // ----------------------------------------------------------------------------
  43 // high level functions for RunApplicationEventLoop() case
  44 // ----------------------------------------------------------------------------
  45
  46 #if wxMAC_USE_RUN_APP_EVENT_LOOP
  47
  48 int wxGUIEventLoop::Run()
  49 {
  50     wxEventLoopActivator activate(this);
  51
  52     RunApplicationEventLoop();
  53
  54     return m_exitcode;
  55 }
  56
  57 void wxGUIEventLoop::Exit(int rc)
  58 {
  59     m_exitcode = rc;
  60
  61     QuitApplicationEventLoop();
  62
  63     OnExit();
  64 }
  65
  66 #else // manual event loop
  67
  68 // ----------------------------------------------------------------------------
  69 // functions only used by wxEventLoopManual-based implementation
  70 // ----------------------------------------------------------------------------
  71
  72 void wxGUIEventLoop::WakeUp()
  73 {
  74     extern void wxMacWakeUp();
  75
  76     wxMacWakeUp();
  77 }
  78
  79 #endif // high/low-level event loop
  80
  81 // ----------------------------------------------------------------------------
  82 // low level functions used in both cases
  83 // ----------------------------------------------------------------------------
  84
  85 bool wxGUIEventLoop::Pending() const
  86 {
  87     EventRef theEvent;
  88
  89     return ReceiveNextEvent
  90            (
  91             0,          // we want any event at all so we don't specify neither
  92             NULL,       // the number of event types nor the types themselves
  93             kEventDurationNoWait,
  94             false,      // don't remove the event from queue
  95             &theEvent
  96            ) == noErr;
  97 }
  98
  99 bool wxGUIEventLoop::Dispatch()
 100 {
 101     // TODO: we probably should do the dispatching directly from here but for
 102     //       now it's easier to forward to wxApp which has all the code to do
 103     //       it
 104     if ( !wxTheApp )
 105         return false;
 106
 107     wxTheApp->MacDoOneEvent();
 108     return true;
 109 }