fixing the shrinking embedded controls

[wxWidgets.git] / src / generic / timer.cpp

diff --git a/src/generic/timer.cpp b/src/generic/timer.cpp
index 24d5888cddcf746af8821614440ab3ac5fc89056..a2daf62003aac3cd53fa04e0be7ae480de910899 100644 (file)
--- a/src/generic/timer.cpp
+++ b/src/generic/timer.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        mgl/timer.cpp
+// Name:        src/generic/timer.cpp
 // Purpose:     wxTimer implementation
 // Author:      Vaclav Slavik
 // Id:          $Id$
@@ -7,10 +7,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "timer.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -24,12 +20,14 @@
 //     is in wxEventLoop::Dispatch().
 // ----------------------------------------------------------------------------
 
-#include "wx/timer.h"
-
 #if wxUSE_TIMER
 
-#include "wx/log.h"
-#include "wx/module.h"
+#include "wx/timer.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/log.h"
+    #include "wx/module.h"
+#endif
 
 // ----------------------------------------------------------------------------
 // Time input function
@@ -47,6 +45,28 @@
 
     #define wxTimerTickFmtSpec _T("lu")
     #define wxTimerTickPrintfArg(tt) (tt)
+
+    #ifdef __DOS__
+        // Under DOS the MGL timer has a 24hr period, so consider the 12 hours
+        // before y to be 'less' and the the 12 hours after 'greater' modulo
+        // 24 hours.
+        inline bool wxTickGreaterEqual(wxTimerTick_t x, wxTimerTick_t y)
+        {
+            // _EVT_getTicks wraps at 1573040 * 55
+            const wxTimerTick_t modulus = 1573040 * 55;
+            return (2 * modulus + x - y) % modulus < modulus / 2;
+        }
+    #else
+        // If wxTimerTick_t is 32-bits then it'll wrap in around 50 days. So
+        // let the 25 days before y be 'less' and 25 days after be 'greater'.
+        inline bool wxTickGreaterEqual(wxTimerTick_t x, wxTimerTick_t y)
+        {
+            // This code assumes wxTimerTick_t is an unsigned type.
+            // Set half_modulus with top bit set and the rest zeros.
+            const wxTimerTick_t half_modulus = ~((~(wxTimerTick_t)0) >> 1);
+            return x - y < half_modulus;
+        }
+    #endif
 #else // !__WXMGL__
     #define GetMillisecondsTime wxGetLocalTimeMillis
 
@@ -59,6 +79,11 @@
         #define wxTimerTickFmtSpec _T("s")
         #define wxTimerTickPrintfArg(tt) (tt.ToString().c_str())
     #endif // wx/native long long
+
+    inline bool wxTickGreaterEqual(wxTimerTick_t x, wxTimerTick_t y)
+    {
+        return x >= y;
+    }
 #endif // __WXMGL__/!__WXMGL__
 
 // ----------------------------------------------------------------------------
@@ -142,29 +167,36 @@ void wxTimerScheduler::NotifyTimers()
         bool oneShot;
         volatile bool timerDeleted;
         wxTimerTick_t now = GetMillisecondsTime();
-        wxTimerDesc *desc;
 
-        while ( m_timers && m_timers->shotTime <= now )
+        for ( wxTimerDesc *desc = m_timers; desc; desc = desc->next )
         {
-            desc = m_timers;
-            oneShot = desc->timer->IsOneShot();
-            RemoveTimer(desc);
-
-            timerDeleted = false;
-            desc->deleteFlag = &timerDeleted;
-            desc->timer->Notify();
-
-            if ( !timerDeleted )
+            if ( desc->running && wxTickGreaterEqual(now, desc->shotTime) )
             {
-                wxLogTrace( wxT("timer"),
-                            wxT("notified timer %p sheduled for %")
-                            wxTimerTickFmtSpec,
-                            desc->timer,
-                            wxTimerTickPrintfArg(desc->shotTime) );
-
-                desc->deleteFlag = NULL;
-                if ( !oneShot )
-                    QueueTimer(desc, now + desc->timer->GetInterval());
+                oneShot = desc->timer->IsOneShot();
+                RemoveTimer(desc);
+
+                timerDeleted = false;
+                desc->deleteFlag = &timerDeleted;
+                desc->timer->Notify();
+
+                if ( !timerDeleted )
+                {
+                    wxLogTrace( wxT("timer"),
+                                wxT("notified timer %p sheduled for %")
+                                wxTimerTickFmtSpec,
+                                desc->timer,
+                                wxTimerTickPrintfArg(desc->shotTime) );
+
+                    desc->deleteFlag = NULL;
+                    if ( !oneShot )
+                        QueueTimer(desc, now + desc->timer->GetInterval());
+                }
+                else
+                {
+                    desc = m_timers;
+                    if (!desc)
+                        break;
+                }
             }
         }
     }