[gtk+] Fix margin-start/end property implementation

[Matthias Clasen <matthiasc src gnome org>]

commit c823498b4c5a033ae3040be2f2ee85f30e63cd3d
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Feb 7 20:25:12 2014 -0500

    Fix margin-start/end property implementation
    
    The properties are declared read-write, but only the setter
    was hooked up. This was leading to criticals in test apps using
    the prop-editor.c code. Complete the implementation by adding the
    getter side too.

 gtk/gtkwidget.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index 70b49ce..0807ce1 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -3909,6 +3909,12 @@ gtk_widget_get_property (GObject         *object,
       g_value_set_int (value, gtk_widget_get_margin_right (widget));
       G_GNUC_END_IGNORE_DEPRECATIONS;
       break;
+    case PROP_MARGIN_START:
+      g_value_set_int (value, gtk_widget_get_margin_start (widget));
+      break;
+    case PROP_MARGIN_END:
+      g_value_set_int (value, gtk_widget_get_margin_end (widget));
+      break;
     case PROP_MARGIN_TOP:
       g_value_set_int (value, gtk_widget_get_margin_top (widget));
       break;