wxMGL bugfixes:

- timers weren't scheduled properly
- wxSizeEvent was sent even though the physical dimensions didn't change
- wxDC had bugs in device origin computations


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12436 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/mgl/dc.cpp

@@ -337,7 +337,7 @@ bool wxDC::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const
     wxCHECK_MSG( col, FALSE, _T("NULL colour parameter in wxDC::GetPixel"));
 
     uchar r, g, b;
-    m_MGLDC->unpackColorFast(m_MGLDC->getPixel(XLOG2DEV(x), XLOG2DEV(y)), 
+    m_MGLDC->unpackColorFast(m_MGLDC->getPixel(XLOG2DEV(x), YLOG2DEV(y)), 
                              r, g, b);
     col->Set(r, g, b);
     return TRUE;
@@ -373,8 +373,8 @@ void wxDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
         m_MGLDC->makeCurrent(); // will go away with MGL6.0
         if ( !m_penSelected ) 
             SelectPen();
-        m_MGLDC->lineExt(XLOG2DEV(x1) + m_penOfsX, XLOG2DEV(y1) + m_penOfsY, 
-                      XLOG2DEV(x2) + m_penOfsX, XLOG2DEV(y2) + m_penOfsY,FALSE);
+        m_MGLDC->lineExt(XLOG2DEV(x1) + m_penOfsX, YLOG2DEV(y1) + m_penOfsY, 
+                      XLOG2DEV(x2) + m_penOfsX, YLOG2DEV(y2) + m_penOfsY,FALSE);
         CalcBoundingBox(x1, y1);
         CalcBoundingBox(x2, y2);
     }

src/mgl/evtloop.cpp

@@ -76,22 +76,21 @@ void wxEventLoopImpl::Dispatch()
 {
     event_t evt;
 
-    MGL_wmUpdateDC(g_winMng);
-    
     // VS: The code bellow is equal to MGL's EVT_halt implementation, with
     //     two things added: sleeping (busy waiting is stupid, lets make CPU's
     //     life a bit easier) and timers updating
 
     // EVT_halt(&evt, EVT_EVERYEVT);
-    do 
+    for (;;)
     {
-        EVT_pollJoystick();
-        EVT_getNext(&evt, EVT_EVERYEVT);
 #if wxUSE_TIMER
         wxTimer::NotifyTimers();
+        MGL_wmUpdateDC(g_winMng);
 #endif
+        EVT_pollJoystick();
+        if ( EVT_getNext(&evt, EVT_EVERYEVT) ) break;
         PM_sleep(10);
-    } while (!(evt.what & EVT_EVERYEVT));
+    }
     // end of EVT_halt
     
     MGL_wmProcessEvent(g_winMng, &evt);

src/mgl/timer.cpp

@@ -16,6 +16,7 @@
 
 #if wxUSE_TIMER
 
+#include "wx/log.h"
 #include "wx/mgl/private.h"
 
 extern "C" ulong _EVT_getTicks();
@@ -55,6 +56,9 @@ void wxTimerScheduler::QueueTimer(wxTimerDesc *desc, unsigned long when)
     desc->shotTime = when;
     desc->running = TRUE;
 
+    wxLogTrace("mgl_timer", "queued timer %p at tick %i", 
+               desc->timer, when);
+
     if ( m_timers )
     {
         wxTimerDesc *d = m_timers;
@@ -91,12 +95,19 @@ void wxTimerScheduler::NotifyTimers()
         unsigned long now = _EVT_getTicks();
         wxTimerDesc *desc;
 
+        wxLogTrace("mgl_timer", "notifying timers, time is %i", now);
+        
         while ( m_timers && m_timers->shotTime <= now )
         {
             desc = m_timers;
-            desc->timer->Notify();
+            bool oneShot = desc->timer->IsOneShot();
             RemoveTimer(desc);
-            if ( !desc->timer->IsOneShot() )
+
+            desc->timer->Notify();
+            wxLogTrace("mgl_timer", "notified timer %p sheduled for %i", 
+                       desc->timer, desc->shotTime);
+
+            if ( !oneShot )
             {
                 QueueTimer(desc, now + desc->timer->GetInterval());
             }
@@ -120,6 +131,7 @@ void wxTimer::Init()
     if ( ms_timersCnt++ == 0 )
         ms_scheduler = new wxTimerScheduler;
     m_desc = new wxTimerDesc(this);
+    wxLogTrace("mgl_timer", "--added timer (count=%i)", ms_timersCnt);
 }
 
 wxTimer::~wxTimer()
@@ -133,6 +145,7 @@ wxTimer::~wxTimer()
         ms_scheduler = NULL;
     }
     delete m_desc;
+    wxLogTrace("mgl_timer", "--removed timer (count=%i)", ms_timersCnt);
 }
 
 bool wxTimer::IsRunning() const
@@ -142,6 +155,9 @@ bool wxTimer::IsRunning() const
 
 bool wxTimer::Start(int millisecs, bool oneShot)
 {
+    wxLogTrace("mgl_timer", "started timer %p: %i ms, oneshot=%i", 
+               this, millisecs, oneShot);
+
     if ( !wxTimerBase::Start(millisecs, oneShot) )
         return FALSE;
     

src/mgl/window.cpp

@@ -929,12 +929,16 @@ void wxWindowMGL::DoSetSize(int x, int y, int width, int height, int sizeFlags)
         }
     }
 
+    if ( m_wnd->x != x || m_wnd->y != y || 
+         (int)m_wnd->width != width || (int)m_wnd->height != height )
+    {
         DoMoveWindow(x, y, width, height);
 
         wxSizeEvent event(wxSize(width, height), GetId());
         event.SetEventObject(this);
         GetEventHandler()->ProcessEvent(event);
     }
+}
 
 void wxWindowMGL::DoSetClientSize(int width, int height)
 {