avoid flicker when setting the text which is the same as the current status bar pane...

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

diff --git a/src/msw/dcmemory.cpp b/src/msw/dcmemory.cpp
index 744f2ae65a3c46dd335ca597a6d719713d508258..5565670444c6e91eeed472bd8bb43d5faa3ef5f3 100644 (file)
--- a/src/msw/dcmemory.cpp
+++ b/src/msw/dcmemory.cpp
@@ -1,11 +1,11 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        dcmemory.cpp
+// Name:        src/msw/dcmemory.cpp
 // Purpose:     wxMemoryDC class
 // Author:      Julian Smart
 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$
-// Copyright:   (c) Julian Smart and Markus Holzem
+// Copyright:   (c) Julian Smart
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
@@ -17,10 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
-    #pragma implementation "dcmemory.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -28,6 +24,8 @@
     #pragma hdrstop
 #endif
 
+#include "wx/dcmemory.h"
+
 #ifndef WX_PRECOMP
     #include "wx/utils.h"
     #include "wx/log.h"
@@ -35,8 +33,6 @@
 
 #include "wx/msw/private.h"
 
-#include "wx/dcmemory.h"
-
 // ----------------------------------------------------------------------------
 // wxWin macros
 // ----------------------------------------------------------------------------
@@ -51,23 +47,12 @@ IMPLEMENT_DYNAMIC_CLASS(wxMemoryDC, wxDC)
 // wxMemoryDC
 // ----------------------------------------------------------------------------
 
-wxMemoryDC::wxMemoryDC()
-{
-    CreateCompatible(NULL);
-
-    Init();
-}
-
 wxMemoryDC::wxMemoryDC(wxDC *dc)
 {
     wxCHECK_RET( dc, _T("NULL dc in wxMemoryDC ctor") );
 
-    dc->BeginDrawing();
-
     CreateCompatible(dc);
 
-    dc->EndDrawing();
-
     Init();
 }
 
@@ -89,14 +74,14 @@ bool wxMemoryDC::CreateCompatible(wxDC *dc)
     m_hDC = (WXHDC)::CreateCompatibleDC(dc ? GetHdcOf(*dc) : NULL);
 
     // as we created the DC, we must delete it in the dtor
-    m_bOwnsDC = TRUE;
+    m_bOwnsDC = true;
 
     m_ok = m_hDC != 0;
 
     return m_ok;
 }
 
-void wxMemoryDC::SelectObject(const wxBitmap& bitmap)
+void wxMemoryDC::DoSelect( const wxBitmap& bitmap)
 {
     // select old bitmap out of the device context
     if ( m_oldBitmap )
@@ -104,22 +89,26 @@ void wxMemoryDC::SelectObject(const wxBitmap& bitmap)
         ::SelectObject(GetHdc(), (HBITMAP) m_oldBitmap);
         if ( m_selectedBitmap.Ok() )
         {
+#ifdef __WXDEBUG__
             m_selectedBitmap.SetSelectedInto(NULL);
+#endif
             m_selectedBitmap = wxNullBitmap;
         }
     }
 
     // check for whether the bitmap is already selected into a device context
-    wxCHECK_RET( !bitmap.GetSelectedInto() ||
-                 (bitmap.GetSelectedInto() == this),
-                 wxT("Bitmap is selected in another wxMemoryDC, delete the first wxMemoryDC or use SelectObject(NULL)") );
+    wxASSERT_MSG( !bitmap.GetSelectedInto() ||
+                  (bitmap.GetSelectedInto() == this),
+                  wxT("Bitmap is selected in another wxMemoryDC, delete the first wxMemoryDC or use SelectObject(NULL)") );
 
     m_selectedBitmap = bitmap;
     WXHBITMAP hBmp = m_selectedBitmap.GetHBITMAP();
     if ( !hBmp )
         return;
 
+#ifdef __WXDEBUG__
     m_selectedBitmap.SetSelectedInto(this);
+#endif
     hBmp = (WXHBITMAP)::SelectObject(GetHdc(), (HBITMAP)hBmp);
 
     if ( !hBmp )
@@ -203,4 +192,3 @@ void wxMemoryDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord he
         wxDC::DoDrawRectangle(x, y, width, height);
     }
 }
-