Fix crash in wxDC::GetMultiLineTextExtent() after last commit.

[wxWidgets.git] / src / gtk / dcscreen.cpp

diff --git a/src/gtk/dcscreen.cpp b/src/gtk/dcscreen.cpp
index fb9149e1add73d7a8a296e4e3186d5b4a7e370a7..0cf5e2a09781526819003e37090b658c3bab8ffa 100644 (file)
--- a/src/gtk/dcscreen.cpp
+++ b/src/gtk/dcscreen.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        dcscreen.cpp
+// Name:        src/gtk/dcscreen.cpp
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
@@ -7,47 +7,39 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "dcscreen.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
-#include "wx/dcscreen.h"
-#include "wx/window.h"
+#include "wx/gtk/dcscreen.h"
 
-#include <gdk/gdk.h>
-#include <gdk/gdkx.h>
 #include <gtk/gtk.h>
 
 //-----------------------------------------------------------------------------
-// global data initialization
+// wxScreenDCImpl
 //-----------------------------------------------------------------------------
 
-GdkWindow *wxScreenDC::sm_overlayWindow  = (GdkWindow*) NULL;
-int wxScreenDC::sm_overlayWindowX = 0;
-int wxScreenDC::sm_overlayWindowY = 0;
+IMPLEMENT_ABSTRACT_CLASS(wxScreenDCImpl, wxWindowDCImpl)
 
-//-----------------------------------------------------------------------------
-// wxScreenDC
-//-----------------------------------------------------------------------------
-
-IMPLEMENT_DYNAMIC_CLASS(wxScreenDC,wxPaintDC)
+wxScreenDCImpl::wxScreenDCImpl( wxScreenDC *owner )
+  : wxWindowDCImpl( owner )
+{
+    Init();
+}
 
-wxScreenDC::wxScreenDC()
+void wxScreenDCImpl::Init()
 {
-    m_ok = FALSE;
+    m_ok = false;
     m_cmap = gdk_colormap_get_system();
-    m_window = GDK_ROOT_PARENT();
+    m_gdkwindow = gdk_get_default_root_window();
 
-#ifdef __WXGTK20__
     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( widget->style->font_desc );
-#endif
 
-    m_isScreenDC = TRUE;
+    m_isScreenDC = true;
 
     SetUpDC();
 
@@ -57,32 +49,17 @@ wxScreenDC::wxScreenDC()
     gdk_gc_set_subwindow( m_bgGC, GDK_INCLUDE_INFERIORS );
 }
 
-wxScreenDC::~wxScreenDC()
+wxScreenDCImpl::~wxScreenDCImpl()
 {
+    g_object_unref(m_context);
+
     gdk_gc_set_subwindow( m_penGC, GDK_CLIP_BY_CHILDREN );
     gdk_gc_set_subwindow( m_brushGC, GDK_CLIP_BY_CHILDREN );
     gdk_gc_set_subwindow( m_textGC, GDK_CLIP_BY_CHILDREN );
     gdk_gc_set_subwindow( m_bgGC, GDK_CLIP_BY_CHILDREN );
-
-    EndDrawingOnTop();
-}
-
-bool wxScreenDC::StartDrawingOnTop( wxWindow * )
-{
-    return true;
-}
-
-bool wxScreenDC::StartDrawingOnTop( wxRect * )
-{
-    return true;
-}
-
-bool wxScreenDC::EndDrawingOnTop()
-{
-    return true;
 }
 
-void wxScreenDC::DoGetSize(int *width, int *height) const
+void wxScreenDCImpl::DoGetSize(int *width, int *height) const
 {
     wxDisplaySize(width, height);
 }