src/x11/timer.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        timer.cpp
   3 // Purpose:     wxTimer implementation
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "timer.h"
  14 #endif
  15
  16 #include "wx/timer.h"
  17 #include "wx/app.h"
  18 #include "wx/list.h"
  19
  20 #ifdef __VMS__
  21 #pragma message disable nosimpint
  22 #endif
  23
  24 #ifdef __VMS__
  25 #pragma message enable nosimpint
  26 #endif
  27
  28 #include "wx/x11/private.h"
  29
  30 IMPLEMENT_ABSTRACT_CLASS(wxTimer, wxObject)
  31
  32 static wxList wxTimerList(wxKEY_INTEGER);
  33
  34 void wxTimerCallback (wxTimer * timer)
  35 {
  36   // Check to see if it's still on
  37   if (!wxTimerList.Find((long)timer))
  38     return;
  39
  40   if (timer->m_id == 0)
  41     return;                     // Avoid to process spurious timer events
  42
  43   if (!timer->m_oneShot)
  44     timer->m_id = XtAppAddTimeOut((XtAppContext) wxTheApp->GetAppContext(),
  45                                   timer->m_milli,
  46                                   (XtTimerCallbackProc) wxTimerCallback,
  47                                   (XtPointer) timer);
  48   else
  49     timer->m_id = 0;
  50
  51   timer->Notify();
  52 }
  53
  54 void wxTimer::Init()
  55 {
  56     m_id = 0;
  57     m_milli = 1000;
  58 }
  59
  60 wxTimer::~wxTimer()
  61 {
  62     wxTimer::Stop();
  63     wxTimerList.DeleteObject(this);
  64 }
  65
  66 bool wxTimer::Start(int milliseconds, bool mode)
  67 {
  68     Stop();
  69
  70     (void)wxTimerBase::Start(milliseconds, mode);
  71
  72     if (!wxTimerList.Find((long)this))
  73         wxTimerList.Append((long)this, this);
  74
  75     m_id = XtAppAddTimeOut((XtAppContext) wxTheApp->GetAppContext(),
  76                             m_milli,
  77                             (XtTimerCallbackProc) wxTimerCallback,
  78                             (XtPointer) this);
  79     return TRUE;
  80 }
  81
  82 void wxTimer::Stop()
  83 {
  84     if (m_id > 0)
  85     {
  86         XtRemoveTimeOut (m_id);
  87         m_id = 0;
  88     }
  89     m_milli = 0 ;
  90 }
  91
  92