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 #ifdef __WXMAC__
  23 #include "wx/mac/private.h"
  24 #endif
  25
  26 typedef struct MacTimerInfo
  27 {
  28     TMTask m_task;
  29     wxMacNotifierTableRef m_table ;
  30     wxTimer* m_timer ;
  31 } ;
  32
  33 static void wxProcessTimer( unsigned long event , void *data ) ;
  34
  35 static pascal void MacTimerProc( TMTask * t )
  36 {
  37         MacTimerInfo * tm = (MacTimerInfo*)  t ;
  38         wxMacAddEvent( tm->m_table , wxProcessTimer, 0 , (void*) tm->m_timer , TRUE ) ;
  39 }
  40
  41 static void wxProcessTimer( unsigned long event , void *data )
  42 {
  43         if ( !data )
  44                 return ;
  45
  46         wxTimer* timer = (wxTimer*) data ;
  47         if ( timer->IsOneShot() )
  48                 timer->Stop() ;
  49
  50     timer->Notify();
  51
  52     if ( timer->m_info->m_task.tmAddr && !timer->IsOneShot() )
  53     {
  54             PrimeTime( (QElemPtr)  &timer->m_info->m_task , timer->GetInterval() ) ;
  55     }
  56 }
  57
  58 void wxTimer::Init()
  59 {
  60     m_info = new MacTimerInfo() ;
  61         m_info->m_task.tmAddr = NULL ;
  62         m_info->m_task.tmWakeUp = 0 ;
  63         m_info->m_task.tmReserved = 0 ;
  64         m_info->m_task.qType = 0 ;
  65         m_info->m_table = wxMacGetNotifierTable() ;
  66         m_info->m_timer = this ;
  67 }
  68
  69 bool wxTimer::IsRunning() const
  70 {
  71         return ( m_info->m_task.qType & kTMTaskActive ) ;
  72 }
  73
  74 wxTimer::~wxTimer()
  75 {
  76     Stop();
  77     delete m_info ;
  78     m_info = NULL ;
  79 }
  80
  81 bool wxTimer::Start(int milliseconds,bool mode)
  82 {
  83     (void)wxTimerBase::Start(milliseconds, mode);
  84
  85     wxCHECK_MSG( m_milli > 0, FALSE, wxT("invalid value for timer timeour") );
  86     wxCHECK_MSG( m_info->m_task.tmAddr == NULL , FALSE, wxT("attempting to restart a timer") );
  87
  88     m_milli = milliseconds;
  89 #if defined(UNIVERSAL_INTERFACES_VERSION) && (UNIVERSAL_INTERFACES_VERSION >= 0x0340)
  90     m_info->m_task.tmAddr = NewTimerUPP( MacTimerProc ) ;
  91 #else
  92     m_info->m_task.tmAddr = NewTimerProc( MacTimerProc ) ;
  93 #endif
  94     m_info->m_task.tmWakeUp = 0 ;
  95     m_info->m_task.tmReserved = 0 ;
  96         m_info->m_task.qType = 0 ;
  97         m_info->m_timer = this ;
  98     InsXTime((QElemPtr) &m_info->m_task ) ;
  99     PrimeTime( (QElemPtr) &m_info->m_task , m_milli ) ;
 100     return FALSE;
 101 }
 102
 103 void wxTimer::Stop()
 104 {
 105     m_milli = 0 ;
 106     if ( m_info->m_task.tmAddr )
 107     {
 108         RmvTime(  (QElemPtr) &m_info->m_task ) ;
 109         DisposeTimerUPP(m_info->m_task.tmAddr) ;
 110         m_info->m_task.tmAddr = NULL ;
 111     }
 112     wxMacRemoveAllNotifiersForData( wxMacGetNotifierTable() , this ) ;
 113 }
 114
 115
 116