Fixed Fontdialog

Fixed frame positions/centering
  Fixed inserting mdi windows
  Changed control callbacks


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@410 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/filedlg.cpp

@@ -65,6 +65,10 @@ wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
   
   m_widget = gtk_file_selection_new( "File selection" );
   
+  int x = (gdk_screen_width () - 400) / 2;
+  int y = (gdk_screen_height () - 400) / 2;
+  gtk_widget_set_uposition( m_widget, x, y );
+  
   GtkFileSelection *sel = GTK_FILE_SELECTION(m_widget);
 
   m_path.Append(m_dir);