/src/wrappers/gtk/library/row_deleted_callback.e

 1indexing
 2	description: "Generic callback for the row-deleted signal"
 3	copyright: "[
 4					Copyright (C) 2006 Paolo redaelli, eiffel-libraries team,  GTK+ team and others
 5					
 6					This library is free software; you can redistribute it and/or
 7					modify it under the terms of the GNU Lesser General Public License
 8					as published by the Free Software Foundation; either version 2.1 of
 9					the License, or (at your option) any later version.
10					
11					This library is distributed in the hope that it will be useful, but
12					WITHOUT ANY WARRANTY; without even the implied warranty of
13					MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14					Lesser General Public License for more details.
15
16					You should have received a copy of the GNU Lesser General Public
17					License along with this library; if not, write to the Free Software
18					Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19					02110-1301 USA
20				]"
21	license: "LGPL v2 or later"
22	date: "$Date:$"
23	revision "$Revision:$"
24
25class ROW_DELETED_CALLBACK
26
27inherit
28	CALLBACK redefine object end
29
30insert
31	G_OBJECT_FACTORY [GTK_TREE_MODEL]
32
33creation make
34
35feature
36	object: GTK_TREE_MODEL
37
38feature
39
40	callback (tree_path, instance: POINTER) is
41		local
42			tree_path_obj: GTK_TREE_PATH
43		do
44			debug
45				print ("Callback: instance=") print (instance.to_string) print ("%N")
46			end
47			-- The following is written with the implicit requirement 
48			-- that the object is actually created by the Eiffel 
49			object := wrapper(instance)
50			create tree_path_obj.copy_from_pointer (tree_path)
51			procedure.call ([tree_path_obj, object])
52		end
53
54	callback_pointer: POINTER is
55		do
56			Result := get_callback_pointer ($callback)
57		ensure
58			Result.is_not_null
59		end
60
61	connect (an_object: GTK_TREE_MODEL;
62				a_procedure: PROCEDURE [ANY, TUPLE[GTK_TREE_PATH, GTK_TREE_MODEL]]) is
63		do
64			debug
65				print ("ROW_DELETED_CALLBACK.connect (an_object=") print (an_object.to_pointer.to_string)
66				print (" an_object.handle=") print (an_object.handle.to_string)
67				print (") Current=") print (to_pointer.to_string)
68				print (" Current.handle=") print (handle.to_string)
69				print ("%N")
70			end
71			handler_id := g_signal_connect_closure (an_object.handle,
72																 signal_name.to_external,
73																 handle,
74																 0 -- i.e. call it before default handler
75																)
76			procedure := a_procedure
77		end
78
79	signal_name: STRING is "row-deleted"
80
81	procedure: PROCEDURE [ANY, TUPLE[GTK_TREE_PATH, GTK_TREE_MODEL]]
82
83end