Fixed bug reporting the significance of paired value t-test.

[pspp-builds.git] / lib / gtksheet / gtksheet.c

diff --git a/lib/gtksheet/gtksheet.c b/lib/gtksheet/gtksheet.c
index eba0ea4002474f060bbd49f2c9799c0bb154792c..942b0233117b4641a61b9dadccbec4fed9f51866 100644 (file)
--- a/lib/gtksheet/gtksheet.c
+++ b/lib/gtksheet/gtksheet.c
@@ -2440,7 +2440,10 @@ gtk_sheet_dispose  (GObject *object)
   if (sheet->column_geometry) g_object_unref (sheet->column_geometry);
 
   g_object_unref (sheet->entry_container);
+  sheet->entry_container = NULL;
+
   g_object_unref (sheet->button);
+  sheet->button = NULL;
 
   /* unref adjustments */
   if (sheet->hadjustment)
@@ -2722,7 +2725,8 @@ gtk_sheet_unrealize (GtkWidget * widget)
   sheet->bg_gc = NULL;
 
   gtk_widget_unparent (sheet->entry_widget);
-  gtk_widget_unparent (sheet->button);
+  if (sheet->button != NULL)
+    gtk_widget_unparent (sheet->button);
 
   if (GTK_WIDGET_CLASS (parent_class)->unrealize)
     (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);