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 // Copyright:   (c) Julian Smart
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/motif/private/timer.h"
  15
  16 #ifndef WX_PRECOMP
  17     #include "wx/app.h"
  18     #include "wx/hashmap.h"
  19 #endif
  20
  21 #ifdef __VMS__
  22 #pragma message disable nosimpint
  23 #endif
  24 #include <Xm/Xm.h>
  25 #ifdef __VMS__
  26 #pragma message enable nosimpint
  27 #endif
  28
  29 #include "wx/motif/private.h"
  30
  31 WX_DECLARE_VOIDPTR_HASH_MAP(wxMotifTimerImpl*, wxTimerHashMap);
  32
  33 static wxTimerHashMap gs_timers;
  34
  35 void wxTimerCallback (wxMotifTimerImpl *timer)
  36 {
  37     // Check to see if it's still on
  38     if ( gs_timers.find(timer) == gs_timers.end() )
  39         return;
  40
  41     if ( !timer->IsRunning() )
  42         return;            // Avoid to process spurious timer events
  43
  44     timer->Notify();
  45 }
  46
  47 wxMotifTimerImpl::~wxMotifTimerImpl()
  48 {
  49     gs_timers.erase(this);
  50 }
  51
  52 void wxMotifTimerImpl::DoStart()
  53 {
  54     m_id = XtAppAddTimeOut((XtAppContext) wxTheApp->GetAppContext(),
  55                             m_milli,
  56                             (XtTimerCallbackProc) wxTimerCallback,
  57                             (XtPointer) this);
  58 }
  59
  60 bool wxMotifTimerImpl::Start(int milliseconds, bool mode)
  61 {
  62     if ( !wxTimerImpl::Start(milliseconds, mode) )
  63         return false;
  64
  65     if ( gs_timers.find(this) == gs_timers.end() )
  66         gs_timers[this] = this;
  67
  68     DoStart();
  69
  70     return true;
  71 }
  72
  73 void wxMotifTimerImpl::Stop()
  74 {
  75     XtRemoveTimeOut (m_id);
  76     m_id = 0;
  77 }
  78
  79 void wxMotifTimerImpl::Notify()
  80 {
  81     if ( IsOneShot() )
  82     {
  83         // nothing to do, timeout is removed automatically by X
  84         m_id = 0;
  85     }
  86     else // rearm the timer
  87     {
  88         DoStart();
  89     }
  90
  91     wxTimerImpl::Notify();
  92 }
  93