/src/wrappers/gtk/library/match_selected_callback.e

 1indexing
 2	description: "Generic callback for the match-selected 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 MATCH_SELECTED_CALLBACK
26
27inherit CALLBACK redefine object end
28
29insert G_OBJECT_FACTORY [GTK_ENTRY_COMPLETION]
30
31creation make
32
33feature
34	object: GTK_ENTRY_COMPLETION
35
36feature
37	callback (model_ptr, iter_ptr, instance: POINTER): INTEGER is
38		local
39			an_iter: GTK_TREE_ITER
40			a_model: GTK_TREE_MODEL
41			model_factory: G_OBJECT_EXPANDED_FACTORY [GTK_TREE_MODEL]
42		do
43			debug
44				print ("Callback: instance=") print (instance.to_string) print ("%N")
45			end
46			
47			object := wrapper(instance)
48			create an_iter.copy_from_pointer (iter_ptr)
49			a_model := model_factory.wrapper (model_ptr)
50			Result := function.item ([a_model, an_iter, object]).to_integer
51		end
52
53	callback_pointer: POINTER is
54		do
55			Result := get_callback_pointer ($callback)
56		ensure
57			Result.is_not_null
58		end
59
60	connect (an_object: GTK_ENTRY_COMPLETION; a_function: like function) is
61		do
62			debug
63				print ("MATCH_SELECTED_CALLBACK.connect (an_object=") print (an_object.to_pointer.to_string)
64				print (" an_object.handle=") print (an_object.handle.to_string)
65				print (") Current=") print (to_pointer.to_string)
66				print (" Current.handle=") print (handle.to_string)
67				print ("%N")
68			end
69
70			handler_id := g_signal_connect_closure (an_object.handle,
71													 signal_name.to_external,
72													 handle,
73													 0 -- i.e. call it before default handler
74													 )
75			function := a_function
76		end
77
78		signal_name: STRING is "match-selected"
79
80	function: FUNCTION [ANY, TUPLE [GTK_TREE_MODEL, GTK_TREE_ITER, GTK_ENTRY_COMPLETION], BOOLEAN]
81end