Make dialog content_area box as vertical, keep compatibility with GTK3

diff --git a/gtk/ui/gtkdialog.ui b/gtk/ui/gtkdialog.ui
index 76cbe1675e4bbe7a007ff4c5d741d9c9481326bd..89d162f65501f3ec6b2b7e23c72388bf13af6c12 100644 (file)
--- a/gtk/ui/gtkdialog.ui
+++ b/gtk/ui/gtkdialog.ui
@@ -11,7 +11,9 @@
           <class name="dialog-vbox"/>
         </style>
         <child>
-          <object class="GtkBox" id="content_area"/>
+          <object class="GtkBox" id="content_area">
+            <property name="orientation">1</property>
+          </object>
         </child>
         <child>
           <object class="GtkBox" id="action_box">