getting rid of redundant redraws

[wxWidgets.git] / src / common / timercmn.cpp

diff --git a/src/common/timercmn.cpp b/src/common/timercmn.cpp
index a13496beff94f2195c59831626a1975b49d7bbdc..2b310c05996c0019731346db112fcee3f5190306 100644 (file)
--- a/src/common/timercmn.cpp
+++ b/src/common/timercmn.cpp
@@ -1,207 +1,92 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        timercmn.cpp
-// Purpose:     Common timer implementation
-// Author:      Julian Smart
-// Modified by:
+// Name:        common/timercmn.cpp
+// Purpose:     wxTimerBase implementation
+// Author:      Julian Smart, Guillermo Rodriguez, Vadim Zeitlin
+// Modified by: VZ: extracted all non-wxTimer stuff in stopwatch.cpp (20.06.03)

 // Created:     04/01/98
 // RCS-ID:      $Id$
 // Created:     04/01/98
 // RCS-ID:      $Id$

-// Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:    wxWindows license
+// Copyright:   (c) Julian Smart
+//              (c) 1999 Guillermo Rodriguez <guille@iies.es>
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-//#pragma implementation "timercmn.h"
-#pragma implementation
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxWin headers
+// ----------------------------------------------------------------------------
+
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
+    #pragma implementation "timerbase.h"

 #endif
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
 #endif
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__

-#pragma hdrstop
-#endif
-
-#ifndef WX_PRECOMP
-#include "wx/defs.h"
-#include "wx/list.h"
-#endif
-
-#include "wx/timer.h"
-
-#ifdef __SVR4__
-#define __SYSV__
+    #pragma hdrstop

 #endif
 
 #endif
 

-#include <time.h>
-#include <sys/types.h>
+#if wxUSE_TIMER

 
 

-#if (!defined(__SC__) && !defined(__SGI__) && !defined(__GNUWIN32__)) || defined(__MINGW32__)
-#include <sys/timeb.h>
+#ifndef WX_PRECOMP
+    #include "wx/timer.h"

 #endif
 
 #endif
 

-#if defined(__linux__) || defined(__SVR4__) || defined(__SYSV__) || defined(__SGI__) || defined(__ALPHA__) || defined(__GNUWIN32__)
-#include <sys/time.h>
-#endif
+// ----------------------------------------------------------------------------
+// wxWin macros
+// ----------------------------------------------------------------------------

 
 

-#ifdef __MINGW32__
-#include "windows.h"
-#endif
+IMPLEMENT_DYNAMIC_CLASS(wxTimerEvent, wxEvent)

 
 

-#if defined(__SUN__) || defined(__OSF__)
-// At least on Sun, ftime is undeclared.
-// Need to be verified on other platforms.
-extern "C" int ftime(struct timeb *tp);
-// extern "C" time_t time(time_t);
-// #include <sys/timeb.h>
-#if defined(__SVR4__) && !defined(__ALPHA__)
-// ditto for gettimeofday on Solaris 2.x.
-extern "C" int gettimeofday(struct timeval *tp, void *);
-#endif
-#endif
-
-/*
- * Timer functions
- *
- */
+// ============================================================================
+// wxTimerBase implementation
+// ============================================================================

 
 

-long wxStartTime = 0;
-void wxStartTimer(void)
+wxTimerBase::~wxTimerBase()

 {
 {

-#if defined(__xlC__) || defined(__AIX__) || defined(__SVR4__) || defined(__SYSV__) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) // || defined(__AIXV3__)
-  struct timeval tp;
-#ifdef __SYSV__
-  gettimeofday(&tp, (struct timezone *)NULL);
-#else
-  gettimeofday(&tp);
-#endif
-  wxStartTime = 1000*tp.tv_sec + tp.tv_usec/1000;
-#elif (defined(__SC__) || defined(__SGI__) || defined(___BSDI__) || defined(__ALPHA__) || defined(__MINGW32__))
-  time_t t0;
-  struct tm *tp;
-  time(&t0);
-  tp = localtime(&t0);
-  wxStartTime = 1000*(60*(60*tp->tm_hour+tp->tm_min)+tp->tm_sec);
-#else
-  struct timeb tp;
-  ftime(&tp);
-  wxStartTime = 1000*tp.time + tp.millitm;
-#endif
+    // this destructor is required for Darwin

 }
 
 }
 

-// Returns elapsed time in milliseconds
-long wxGetElapsedTime(bool resetTimer)
+void wxTimerBase::Notify()

 {
 {

-#if defined(__xlC__) || defined(__AIX__) || defined(__SVR4__) || defined(__SYSV__) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) // || defined(__AIXV3__)
-  struct timeval tp;
-#ifdef __SYSV__
-  gettimeofday(&tp, (struct timezone *)NULL);
-#else
-  gettimeofday(&tp);
-#endif
-  long oldTime = wxStartTime;
-  long newTime = 1000*tp.tv_sec + tp.tv_usec / 1000;
-  if (resetTimer)
-    wxStartTime = newTime;
-#elif (defined(__SC__) || defined(__SGI__) || defined(___BSDI__) || defined(__ALPHA__) || defined(__MINGW32__))
-  time_t t0;
-  struct tm *tp;
-  time(&t0);
-  tp = localtime(&t0);
-  long oldTime = wxStartTime;
-  long newTime = 1000*(60*(60*tp->tm_hour+tp->tm_min)+tp->tm_sec);
-  if (resetTimer)
-    wxStartTime = newTime;
-#else
-  struct timeb tp;
-  ftime(&tp);
-  long oldTime = wxStartTime;
-  long newTime = 1000*tp.time + tp.millitm;
-  if (resetTimer)
-    wxStartTime = newTime;
-#endif
-  return newTime - oldTime;
-}
+    // the base class version generates an event if it has owner - which it
+    // should because otherwise nobody can process timer events
+    wxCHECK_RET( m_owner, _T("wxTimer::Notify() should be overridden.") );

 
 

-// EXPERIMENTAL: comment this out if it doesn't compile.
-#ifndef __VMS__
-bool wxGetLocalTime(long *timeZone, int *dstObserved)
-{
-#if defined(__MINGW32__) && defined(__EGCS__)
-  time_t t0;
-  struct tm *tp;
-  time(&t0);
-  tp = localtime(&t0);
-  *timeZone = timezone; // tp->tm_gmtoff; // ???
-  *dstObserved = tp->tm_isdst;
-#elif defined(__MINGW32__)
-  time_t t0;
-  struct tm *tp;
-  time(&t0);
-  tp = localtime(&t0);
-  timeb tz;
-  ftime(& tz);
-  *timeZone = tz._timezone;
-  *dstObserved = tp->tm_isdst;
-#else
-
-#if (((defined(__SYSV__) && !defined(__HPUX__)) || defined(__MSDOS__) || defined(__WINDOWS__)) && !defined(__GNUWIN32__))
-#ifdef __BORLANDC__
-  /* Borland uses underscores */
-  *timeZone = _timezone;
-  *dstObserved = _daylight;
-#else
-  *timeZone = timezone;
-  *dstObserved = daylight;
-#endif
-#elif defined(__xlC__) || defined(__AIX__) || defined(__SVR4__) || defined(__SYSV__) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) // || defined(__AIXV3__)
-  struct timeval tp;
-#if defined(__SYSV__) || (defined(__GNUWIN32__) && !defined(__MINGW32))
-  struct timezone tz;
-  gettimeofday(&tp, &tz);
-  *timeZone = 60*(tz.tz_minuteswest);
-  *dstObserved = tz.tz_dsttime;
-#else
-  time_t t0;
-  struct tm *tp;
-  time(&t0);
-  tp = localtime(&t0);
-  *timeZone = tp->tm_gmtoff; // ???
-  *dstObserved = tp->tm_isdst;
-#endif
-#else
-// #error wxGetLocalTime not implemented.
-  struct timeval tp;
-  struct timezone tz;
-  gettimeofday(&tp, &tz);
-  *timeZone = 60*(tz.tz_minuteswest);
-  *dstObserved = tz.tz_dsttime;
-#endif
-#endif
-  // __MINGW32__
-  return TRUE;
+    wxTimerEvent event(m_idTimer, m_milli);
+    event.SetEventObject(this);
+    (void)m_owner->ProcessEvent(event);

 }
 }

-#endif

 
 

-// Get number of seconds since 00:00:00 GMT, Jan 1st 1970.
-long wxGetCurrentTime(void)
+bool wxTimerBase::Start(int milliseconds, bool oneShot)

 {
 {

-#if defined(__xlC__) || defined(__AIX__) || defined(__SVR4__) || defined(__SYSV__) // || defined(__AIXV3__)
-  struct timeval tp;
-#ifdef __SYSV__
-  gettimeofday(&tp, (struct timezone *)NULL);
-#else
-  gettimeofday(&tp);
-#endif
-  return tp.tv_sec;
-#else // (defined(__SC__) || defined(__SGI__) || defined(___BSDI__) || defined(__ALPHA__))
-  return time(0);
-#endif
-/*
-#else
-  struct timeb tp;
-  ftime(&tp);
-  return tp.time;
-#endif
-*/
+    // under MSW timers only work when they're started from the main thread so
+    // let the caller know about it
+#if wxUSE_THREADS
+    wxASSERT_MSG( wxThread::IsMain(),
+                  _T("timer can only be started from the main thread") );
+#endif // wxUSE_THREADS
+
+    if ( IsRunning() )
+    {
+        // not stopping the already running timer might work for some
+        // platforms (no problems under MSW) but leads to mysterious crashes
+        // on the others (GTK), so to be on the safe side do it here
+        Stop();
+    }
+
+    if ( milliseconds != -1 )
+    {
+        m_milli = milliseconds;
+    }
+
+    m_oneShot = oneShot;
+
+    return true;

 }
 
 }
 

+#endif // wxUSE_TIMER
+