src/motif/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 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #include "wx/timer.h"
  16 #include "wx/app.h"
  17 #include "wx/hashmap.h"
  18
  19 #ifdef __VMS__
  20 #pragma message disable nosimpint
  21 #endif
  22 #include <Xm/Xm.h>
  23 #ifdef __VMS__
  24 #pragma message enable nosimpint
  25 #endif
  26
  27 #include "wx/motif/private.h"
  28
  29 IMPLEMENT_ABSTRACT_CLASS(wxTimer, wxEvtHandler);
  30
  31 WX_DECLARE_VOIDPTR_HASH_MAP(wxTimer*, wxTimerHashMap);
  32
  33 static wxTimerHashMap s_timers;
  34
  35 void wxTimerCallback (wxTimer * timer)
  36 {
  37   // Check to see if it's still on
  38   if (s_timers.find(timer) == s_timers.end())
  39     return;
  40
  41   if (timer->m_id == 0)
  42     return;                     // Avoid to process spurious timer events
  43
  44   if (!timer->m_oneShot)
  45     timer->m_id = XtAppAddTimeOut((XtAppContext) wxTheApp->GetAppContext(),
  46                                   timer->m_milli,
  47                                   (XtTimerCallbackProc) wxTimerCallback,
  48                                   (XtPointer) timer);
  49   else
  50     timer->m_id = 0;
  51
  52   timer->Notify();
  53 }
  54
  55 void wxTimer::Init()
  56 {
  57     m_id = 0;
  58     m_milli = 1000;
  59 }
  60
  61 wxTimer::~wxTimer()
  62 {
  63     Stop();
  64     s_timers.erase(this);
  65 }
  66
  67 bool wxTimer::Start(int milliseconds, bool mode)
  68 {
  69     Stop();
  70
  71     (void)wxTimerBase::Start(milliseconds, mode);
  72
  73     if (s_timers.find(this) == s_timers.end())
  74         s_timers[this] = this;
  75
  76     m_id = XtAppAddTimeOut((XtAppContext) wxTheApp->GetAppContext(),
  77                             m_milli,
  78                             (XtTimerCallbackProc) wxTimerCallback,
  79                             (XtPointer) this);
  80     return true;
  81 }
  82
  83 void wxTimer::Stop()
  84 {
  85     if (m_id > 0)
  86     {
  87         XtRemoveTimeOut (m_id);
  88         m_id = 0;
  89     }
  90     m_milli = 0 ;
  91 }
  92
  93