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/motif/private/timer.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/app.h"
  19     #include "wx/hashmap.h"
  20 #endif
  21
  22 #ifdef __VMS__
  23 #pragma message disable nosimpint
  24 #endif
  25 #include <Xm/Xm.h>
  26 #ifdef __VMS__
  27 #pragma message enable nosimpint
  28 #endif
  29
  30 #include "wx/motif/private.h"
  31
  32 WX_DECLARE_VOIDPTR_HASH_MAP(wxMotifTimerImpl*, wxTimerHashMap);
  33
  34 static wxTimerHashMap gs_timers;
  35
  36 void wxTimerCallback (wxMotifTimerImpl *timer)
  37 {
  38     // Check to see if it's still on
  39     if ( gs_timers.find(timer) == gs_timers.end() )
  40         return;
  41
  42     if ( !timer->IsRunning() )
  43         return;            // Avoid to process spurious timer events
  44
  45     timer->Notify();
  46 }
  47
  48 wxMotifTimerImpl::~wxMotifTimerImpl()
  49 {
  50     gs_timers.erase(this);
  51 }
  52
  53 void wxMotifTimerImpl::DoStart()
  54 {
  55     m_id = XtAppAddTimeOut((XtAppContext) wxTheApp->GetAppContext(),
  56                             m_milli,
  57                             (XtTimerCallbackProc) wxTimerCallback,
  58                             (XtPointer) this);
  59 }
  60
  61 bool wxMotifTimerImpl::Start(int milliseconds, bool mode)
  62 {
  63     if ( !wxTimerImpl::Start(milliseconds, mode) )
  64         return false;
  65
  66     if ( gs_timers.find(this) == gs_timers.end() )
  67         gs_timers[this] = this;
  68
  69     DoStart();
  70
  71     return true;
  72 }
  73
  74 void wxMotifTimerImpl::Stop()
  75 {
  76     XtRemoveTimeOut (m_id);
  77     m_id = 0;
  78 }
  79
  80 void wxMotifTimerImpl::Notify()
  81 {
  82     if ( IsOneShot() )
  83     {
  84         // nothing to do, timeout is removed automatically by X
  85         m_id = 0;
  86     }
  87     else // rearm the timer
  88     {
  89         DoStart();
  90     }
  91
  92     wxTimerImpl::Notify();
  93 }
  94