src/motif/timer.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/motif/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
  17 #ifndef WX_PRECOMP
  18     #include "wx/app.h"
  19 #endif
  20
  21 #include "wx/hashmap.h"
  22
  23 #ifdef __VMS__
  24 #pragma message disable nosimpint
  25 #endif
  26 #include <Xm/Xm.h>
  27 #ifdef __VMS__
  28 #pragma message enable nosimpint
  29 #endif
  30
  31 #include "wx/motif/private.h"
  32
  33 IMPLEMENT_ABSTRACT_CLASS(wxTimer, wxEvtHandler)
  34
  35 WX_DECLARE_VOIDPTR_HASH_MAP(wxTimer*, wxTimerHashMap);
  36
  37 static wxTimerHashMap s_timers;
  38
  39 void wxTimerCallback (wxTimer * timer)
  40 {
  41   // Check to see if it's still on
  42   if (s_timers.find(timer) == s_timers.end())
  43     return;
  44
  45   if (timer->m_id == 0)
  46     return;            // Avoid to process spurious timer events
  47
  48   if (!timer->m_oneShot)
  49     timer->m_id = XtAppAddTimeOut((XtAppContext) wxTheApp->GetAppContext(),
  50                                   timer->m_milli,
  51                                   (XtTimerCallbackProc) wxTimerCallback,
  52                                   (XtPointer) timer);
  53   else
  54     timer->m_id = 0;
  55
  56   timer->Notify();
  57 }
  58
  59 void wxTimer::Init()
  60 {
  61     m_id = 0;
  62     m_milli = 1000;
  63 }
  64
  65 wxTimer::~wxTimer()
  66 {
  67     Stop();
  68     s_timers.erase(this);
  69 }
  70
  71 bool wxTimer::Start(int milliseconds, bool mode)
  72 {
  73     Stop();
  74
  75     (void)wxTimerBase::Start(milliseconds, mode);
  76
  77     if (s_timers.find(this) == s_timers.end())
  78         s_timers[this] = this;
  79
  80     m_id = XtAppAddTimeOut((XtAppContext) wxTheApp->GetAppContext(),
  81                             m_milli,
  82                             (XtTimerCallbackProc) wxTimerCallback,
  83                             (XtPointer) this);
  84     return true;
  85 }
  86
  87 void wxTimer::Stop()
  88 {
  89     if (m_id > 0)
  90     {
  91         XtRemoveTimeOut (m_id);
  92         m_id = 0;
  93     }
  94     m_milli = 0 ;
  95 }