Combox gets its own SetFocus()

wxDialog() set the focus to itself when shown. This will
    the propagate to some control in the dialog. I am not
    sure if this will override preceding user's call to
    SetFocus() in one of the child windows.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@17521 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/combobox.cpp

@@ -209,6 +209,17 @@ wxComboBox::~wxComboBox()
     m_clientDataList.Clear();
 }
 
+void wxComboBox::SetFocus()
+{
+    if ( m_hasFocus )
+    {
+        // don't do anything if we already have focus
+        return;
+    }
+
+    gtk_widget_grab_focus( m_focusWidget );
+}
+
 void wxComboBox::AppendCommon( const wxString &item )
 {
     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );