[dia] [gtk-deprecated] Use gtk_widget_get_parent()

[Hans Breuer <hans src gnome org>]

commit 6251528e30bf0b0f2f613654c48e2fbb9971c006
Author: Hans Breuer <hans breuer org>
Date:   Tue Jul 31 15:57:47 2012 +0200

    [gtk-deprecated] Use gtk_widget_get_parent()

 app/display.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/app/display.c b/app/display.c
index 513c83e..bc170b3 100644
--- a/app/display.c
+++ b/app/display.c
@@ -1528,7 +1528,7 @@ void display_rulers_show (DDisplay *ddisp)
 {
   if (ddisp)
   {
-    GtkWidget *parent = GTK_WIDGET (ddisp->origin->parent);
+    GtkWidget *parent = gtk_widget_get_parent (GTK_WIDGET (ddisp->origin));
 
     gtk_widget_show (ddisp->origin);
     gtk_widget_show (ddisp->hrule);
@@ -1556,7 +1556,7 @@ void display_rulers_hide (DDisplay *ddisp)
 {
   if (ddisp)
   {
-    GtkWidget *parent = GTK_WIDGET (ddisp->origin->parent);
+    GtkWidget *parent = gtk_widget_get_parent (GTK_WIDGET (ddisp->origin));
 
     gtk_widget_hide (ddisp->origin);
     gtk_widget_hide (ddisp->hrule);