src/mac/timer.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        timer.cpp
   3 // Purpose:     wxTimer implementation
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "timer.h"
  14 #endif
  15
  16 #include "wx/timer.h"
  17
  18 #if !USE_SHARED_LIBRARY
  19 IMPLEMENT_ABSTRACT_CLASS(wxTimer, wxObject)
  20 #endif
  21
  22 static void wxProcessTimer( unsigned long event , void *data ) ;
  23
  24 static pascal void MacTimerProc( TMTask * t )
  25 {
  26         MacTimerInfo * tm = (MacTimerInfo*)  t ;
  27         wxMacAddEvent( tm->m_table , wxProcessTimer, 0 , (void*) tm->m_timer , TRUE ) ;
  28 }
  29
  30 static void wxProcessTimer( unsigned long event , void *data )
  31 {
  32         if ( !data )
  33                 return ;
  34
  35         wxTimer* timer = (wxTimer*) data ;
  36         if ( timer->IsOneShot() )
  37                 timer->Stop() ;
  38
  39     timer->Notify();
  40
  41     if ( timer->m_info.m_task.tmAddr && !timer->IsOneShot() )
  42     {
  43             PrimeTime( (QElemPtr)  &timer->m_info.m_task , timer->GetInterval() ) ;
  44     }
  45 }
  46
  47 void wxTimer::Init()
  48 {
  49         m_info.m_task.tmAddr = NULL ;
  50         m_info.m_task.tmWakeUp = 0 ;
  51         m_info.m_task.tmReserved = 0 ;
  52         m_info.m_task.qType = 0 ;
  53         m_info.m_table = wxMacGetNotifierTable() ;
  54         m_info.m_timer = this ;
  55 }
  56
  57 bool wxTimer::IsRunning() const
  58 {
  59         return ( m_info.m_task.qType & kTMTaskActive ) ;
  60 }
  61
  62 wxTimer::~wxTimer()
  63 {
  64     Stop();
  65 }
  66
  67 bool wxTimer::Start(int milliseconds,bool mode)
  68 {
  69     (void)wxTimerBase::Start(milliseconds, mode);
  70
  71     wxCHECK_MSG( m_milli > 0, FALSE, wxT("invalid value for timer timeour") );
  72     wxCHECK_MSG( m_info.m_task.tmAddr == NULL , FALSE, wxT("attempting to restart a timer") );
  73
  74     m_milli = milliseconds;
  75         m_info.m_task.tmAddr = NewTimerProc( MacTimerProc ) ;
  76         m_info.m_task.tmWakeUp = 0 ;
  77         m_info.m_task.tmReserved = 0 ;
  78     InsXTime((QElemPtr) &m_info.m_task ) ;
  79     PrimeTime( (QElemPtr) &m_info.m_task , m_milli ) ;
  80     return FALSE;
  81 }
  82
  83 void wxTimer::Stop()
  84 {
  85     m_milli = 0 ;
  86     if ( m_info.m_task.tmAddr )
  87     {
  88         RmvTime(  (QElemPtr) &m_info.m_task ) ;
  89         DisposeTimerUPP(m_info.m_task.tmAddr) ;
  90         m_info.m_task.tmAddr = NULL ;
  91     }
  92     wxMacRemoveAllNotifiersForData( wxMacGetNotifierTable() , this ) ;
  93 }
  94
  95
  96