Fixed wxAtomicInc/Dec() to not use asm/atomic.h header on Linux - it's kernel interna...

[wxWidgets.git] / src / msw / dcclient.cpp

diff --git a/src/msw/dcclient.cpp b/src/msw/dcclient.cpp
index 99ec584b4a483ba4e760109514e39b2ae85e4788..75c1c9a550515db4a5e844eacc415d1a6b8d2300 100644 (file)
--- a/src/msw/dcclient.cpp
+++ b/src/msw/dcclient.cpp
@@ -1,12 +1,12 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        dcclient.cpp
+// Name:        src/msw/dcclient.cpp
 // Purpose:     wxClientDC class
 // Author:      Julian Smart
 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart
-// Licence:     wxWidgets licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // ===========================================================================
@@ -17,10 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation "dcclient.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -28,13 +24,15 @@
     #pragma hdrstop
 #endif
 
-#include "wx/string.h"
-#include "wx/log.h"
-#include "wx/window.h"
+#include "wx/dcclient.h"
 
-#include "wx/msw/private.h"
+#ifndef WX_PRECOMP
+    #include "wx/string.h"
+    #include "wx/log.h"
+    #include "wx/window.h"
+#endif
 
-#include "wx/dcclient.h"
+#include "wx/msw/private.h"
 
 // ----------------------------------------------------------------------------
 // array/list types
@@ -56,7 +54,7 @@ struct WXDLLEXPORT wxPaintDCInfo
 
 #include "wx/arrimpl.cpp"
 
-WX_DEFINE_OBJARRAY(wxArrayDCInfo);
+WX_DEFINE_OBJARRAY(wxArrayDCInfo)
 
 // ----------------------------------------------------------------------------
 // macros
@@ -75,7 +73,7 @@ static PAINTSTRUCT g_paintStruct;
 
 #ifdef __WXDEBUG__
     // a global variable which we check to verify that wxPaintDC are only
-    // created in resopnse to WM_PAINT message - doing this from elsewhere is a
+    // created in response to WM_PAINT message - doing this from elsewhere is a
     // common programming error among wxWidgets programmers and might lead to
     // very subtle and difficult to debug refresh/repaint bugs.
     int g_isPainting = 0;
@@ -169,7 +167,7 @@ void wxClientDC::InitDC()
     }
 
     // clip the DC to avoid overwriting the non client area
-    SetClippingRegion(wxPoint(0, 0), m_canvas->GetClientSize());
+    SetClippingRegion(wxPoint(0,0), m_canvas->GetClientSize());
 #endif // __WXUNIVERSAL__ || __WXWINCE__
 }
 
@@ -240,10 +238,16 @@ wxPaintDC::wxPaintDC(wxWindow *canvas)
             ms_cache.Add(new wxPaintDCInfo(m_canvas, this));
     }
 
-    // (re)set the DC parameters.
     // Note: at this point m_hDC can be NULL under MicroWindows, when dragging.
-    if (GetHDC())
-        InitDC();
+    if (!GetHDC())
+        return;
+
+    // (re)set the DC parameters.
+    InitDC();
+
+    // the HDC can have a clipping box (which we didn't set), make sure our
+    // DoGetClippingBox() checks for it
+    m_clipping = true;
 }
 
 wxPaintDC::~wxPaintDC()
@@ -257,7 +261,7 @@ wxPaintDC::~wxPaintDC()
 
         wxCHECK_RET( info, wxT("existing DC should have a cache entry") );
 
-        if ( !--info->count )
+        if ( --info->count == 0 )
         {
             ::EndPaint(GetHwndOf(m_canvas), &g_paintStruct);
 
@@ -312,7 +316,7 @@ WXHDC wxPaintDC::FindDCInCache(wxWindow* win)
 /*
  * wxPaintDCEx
  */
- 
+
 // TODO: don't duplicate wxPaintDC code here!!
 
 wxPaintDCEx::wxPaintDCEx(wxWindow *canvas, WXHDC dc) : saveState(0)
@@ -342,7 +346,7 @@ wxPaintDCEx::~wxPaintDCEx()
 
     wxCHECK_RET( info, wxT("existing DC should have a cache entry") );
 
-    if ( !--info->count )
+    if ( --info->count == 0 )
     {
         RestoreDC((HDC) m_hDC, saveState);
         ms_cache.RemoveAt(index);
@@ -357,4 +361,3 @@ wxPaintDCEx::~wxPaintDCEx()
     // prevent the base class dtor from ReleaseDC()ing it again
     m_hDC = 0;
 }
-