+IMPLEMENT_ABSTRACT_CLASS(wxMemoryDCImpl, wxWindowDCImpl)
+
+wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner )
+ : wxWindowDCImpl( owner )
+{
+ Init();
+}
+
+wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner, wxBitmap& bitmap)
+ : wxWindowDCImpl( owner )
+{
+ Init();
+ owner->SelectObject(bitmap);
+}
+
+wxMemoryDCImpl::wxMemoryDCImpl( wxMemoryDC *owner, wxDC *WXUNUSED(dc) )
+ : wxWindowDCImpl( owner )
+{
+ Init();
+}
+
+wxMemoryDCImpl::~wxMemoryDCImpl()
+{
+ g_object_unref(m_context);
+}
+
+void wxMemoryDCImpl::Init()
+{
+ m_ok = false;
+
+ m_cmap = gtk_widget_get_default_colormap();
+
+ m_context = gdk_pango_context_get();
+ // Note: The Sun customised version of Pango shipping with Solaris 10
+ // crashes if the language is left NULL (see bug 1374114)
+ pango_context_set_language( m_context, gtk_get_default_language() );
+ m_layout = pango_layout_new( m_context );
+ m_fontdesc = pango_font_description_copy( pango_context_get_font_description( m_context ) );
+}
+
+void wxMemoryDCImpl::DoSelect( const wxBitmap& bitmap )
+{
+ Destroy();
+
+ m_selected = bitmap;
+ if (m_selected.Ok())
+ {
+ m_gdkwindow = m_selected.GetPixmap();
+
+ m_selected.PurgeOtherRepresentations(wxBitmap::Pixmap);
+
+ SetUpDC( true );
+ }
+ else
+ {
+ m_ok = false;
+ m_gdkwindow = (GdkWindow *) NULL;
+ }
+}
+
+void wxMemoryDCImpl::SetPen( const wxPen& penOrig )
+{
+ wxPen pen( penOrig );
+ if ( m_selected.Ok() &&
+ m_selected.GetDepth() == 1 &&
+ (pen != *wxTRANSPARENT_PEN) )
+ {
+ pen.SetColour( pen.GetColour() == *wxWHITE ? *wxBLACK : *wxWHITE );
+ }