[glabels] Disconnect prefs changed callback when destroying view.

[Jim Evins <jimevins src gnome org>]

commit 8963061c3080ead1a2000f829d506f6d510943bf
Author: Jim Evins <evins snaught com>
Date:   Fri Dec 10 23:09:40 2010 -0500

    Disconnect prefs changed callback when destroying view.
    
    This fixes a crash when changing prefs after deleting a window.

 src/view.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/view.c b/src/view.c
index 983f8e5..b1550b4 100644
--- a/src/view.c
+++ b/src/view.c
@@ -347,6 +347,9 @@ gl_view_finalize (GObject *object)
 	g_return_if_fail (object != NULL);
 	g_return_if_fail (GL_IS_VIEW (view));
 
+        g_signal_handlers_disconnect_by_func (G_OBJECT (gl_prefs),
+                                              G_CALLBACK (prefs_changed_cb), view);
+
 	G_OBJECT_CLASS (gl_view_parent_class)->finalize (object);
 
 	gl_debug (DEBUG_VIEW, "END");