src/osx/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 #if wxOSX_USE_CARBON
  34     #include <Carbon/Carbon.h>
  35 #else
  36     #include <CoreFoundation/CoreFoundation.h>
  37 #endif
  38 // ============================================================================
  39 // wxEventLoop implementation
  40 // ============================================================================
  41
  42 // ----------------------------------------------------------------------------
  43 // high level functions for RunApplicationEventLoop() case
  44 // ----------------------------------------------------------------------------
  45
  46
  47
  48 #if wxOSX_USE_RUN_APP_EVENT_LOOP
  49
  50 int wxGUIEventLoop::Run()
  51 {
  52     wxEventLoopActivator activate(this);
  53
  54     RunApplicationEventLoop();
  55
  56     return m_exitcode;
  57 }
  58
  59 void wxGUIEventLoop::Exit(int rc)
  60 {
  61     m_exitcode = rc;
  62
  63     QuitApplicationEventLoop();
  64
  65     OnExit();
  66 }
  67
  68 #else // manual event loop
  69
  70 // ----------------------------------------------------------------------------
  71 // functions only used by wxEventLoopManual-based implementation
  72 // ----------------------------------------------------------------------------
  73
  74 void wxGUIEventLoop::WakeUp()
  75 {
  76     extern void wxMacWakeUp();
  77
  78     wxMacWakeUp();
  79 }
  80
  81 #endif // high/low-level event loop
  82
  83 // ----------------------------------------------------------------------------
  84 // low level functions used in both cases
  85 // ----------------------------------------------------------------------------
  86
  87 bool wxGUIEventLoop::Pending() const
  88 {
  89 #if wxOSX_USE_CARBON
  90     EventRef theEvent;
  91
  92     return ReceiveNextEvent
  93            (
  94             0,          // we want any event at all so we don't specify neither
  95             NULL,       // the number of event types nor the types themselves
  96             kEventDurationNoWait,
  97             false,      // don't remove the event from queue
  98             &theEvent
  99            ) == noErr;
 100 #else
 101     return true; // TODO
 102 #endif
 103 }
 104
 105 bool wxGUIEventLoop::Dispatch()
 106 {
 107     if ( !wxTheApp )
 108         return false;
 109
 110 #if wxOSX_USE_CARBON
 111     // TODO: we probably should do the dispatching directly from here but for
 112     //       now it's easier to forward to wxApp which has all the code to do
 113     //       it
 114     wxTheApp->MacDoOneEvent();
 115 #else
 116     CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0, 0);
 117 #endif
 118     return true;
 119 }