ConvertToImage: Check !Ok() (we may not have any ref data at all) and if

[wxWidgets.git] / src / gtk1 / dcmemory.cpp

diff --git a/src/gtk1/dcmemory.cpp b/src/gtk1/dcmemory.cpp
index 617cbd744a7a7070ebffc52faf5737d3c167d7c5..0ec10532b7d8ce554a856cda72862eee8115ed91 100644 (file)
--- a/src/gtk1/dcmemory.cpp
+++ b/src/gtk1/dcmemory.cpp
@@ -7,14 +7,17 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
 #pragma implementation "dcmemory.h"
 #endif
 
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
 #include "wx/dcmemory.h"
 
-#include "gdk/gdk.h"
-#include "gtk/gtk.h"
+#include <gdk/gdk.h>
+#include <gtk/gtk.h>
 
 //-----------------------------------------------------------------------------
 // wxMemoryDC
@@ -27,6 +30,12 @@ wxMemoryDC::wxMemoryDC() : wxWindowDC()
     m_ok = FALSE;
 
     m_cmap = gtk_widget_get_default_colormap();
+    
+#ifdef __WXGTK20__
+    m_context = gdk_pango_context_get();
+    m_layout = pango_layout_new( m_context );
+    m_fontdesc = pango_font_description_copy( pango_context_get_font_description( m_context ) );
+#endif
 }
 
 wxMemoryDC::wxMemoryDC( wxDC *WXUNUSED(dc) )
@@ -35,6 +44,12 @@ wxMemoryDC::wxMemoryDC( wxDC *WXUNUSED(dc) )
     m_ok = FALSE;
 
     m_cmap = gtk_widget_get_default_colormap();
+    
+#ifdef __WXGTK20__
+    m_context = gdk_pango_context_get();
+    m_layout = pango_layout_new( m_context );
+    m_fontdesc = pango_font_description_copy( pango_context_get_font_description( m_context ) );
+#endif
 }
 
 wxMemoryDC::~wxMemoryDC()
@@ -43,6 +58,7 @@ wxMemoryDC::~wxMemoryDC()
 
 void wxMemoryDC::SelectObject( const wxBitmap& bitmap )
 {
+    Destroy();
     m_selected = bitmap;
     if (m_selected.Ok())
     {
@@ -55,9 +71,9 @@ void wxMemoryDC::SelectObject( const wxBitmap& bitmap )
             m_window = m_selected.GetBitmap();
         }
 
-        SetUpDC();
-
         m_isMemDC = TRUE;
+
+        SetUpDC();
     }
     else
     {
@@ -66,6 +82,70 @@ void wxMemoryDC::SelectObject( const wxBitmap& bitmap )
     }
 }
 
+void wxMemoryDC::SetPen( const wxPen& penOrig )
+{
+    wxPen pen( penOrig );
+    if ( m_selected.Ok() &&
+            m_selected.GetBitmap() &&
+                (pen != *wxTRANSPARENT_PEN) )
+    {
+        pen.SetColour( pen.GetColour() == *wxWHITE ? *wxBLACK : *wxWHITE );
+    }
+
+    wxWindowDC::SetPen( pen );
+}
+
+void wxMemoryDC::SetBrush( const wxBrush& brushOrig )
+{
+    wxBrush brush( brushOrig );
+    if ( m_selected.Ok() &&
+            m_selected.GetBitmap() &&
+                (brush != *wxTRANSPARENT_BRUSH) )
+    {
+        brush.SetColour( brush.GetColour() == *wxWHITE ? *wxBLACK : *wxWHITE);
+    }
+
+    wxWindowDC::SetBrush( brush );
+}
+
+void wxMemoryDC::SetBackground( const wxBrush& brushOrig ) 
+{
+    wxBrush brush(brushOrig);
+
+    if ( m_selected.Ok() &&
+            m_selected.GetBitmap() &&
+                (brush != *wxTRANSPARENT_BRUSH) )
+    {
+        brush.SetColour( brush.GetColour() == *wxWHITE ? *wxBLACK : *wxWHITE );
+    }
+
+    wxWindowDC::SetBackground( brush );
+}
+
+void wxMemoryDC::SetTextForeground( const wxColour& col )
+{
+    if ( m_selected.Ok() && m_selected.GetBitmap() )
+    {
+        wxWindowDC::SetTextForeground( col == *wxWHITE ? *wxBLACK : *wxWHITE);
+    }
+    else
+    {
+        wxWindowDC::SetTextForeground( col );
+    }
+}
+
+void wxMemoryDC::SetTextBackground( const wxColour &col )
+{
+    if (m_selected.Ok() && m_selected.GetBitmap())
+    {
+        wxWindowDC::SetTextBackground( col == *wxWHITE ? *wxBLACK : *wxWHITE );
+    }
+    else
+    {
+        wxWindowDC::SetTextBackground( col );
+    }
+}
+
 void wxMemoryDC::DoGetSize( int *width, int *height ) const
 {
     if (m_selected.Ok())