PageRenderTime 48ms CodeModel.GetById 44ms app.highlight 1ms RepoModel.GetById 1ms app.codeStats 0ms

/src/wrappers/gtk/library/move_cursor_callback.e

http://github.com/tybor/Liberty
Specman e | 67 lines | 50 code | 15 blank | 2 comment | 3 complexity | 3b6b2953b3a2d0ba66511a27a74344ea MD5 | raw file
 1indexing
 2	description: "Generic callback for the move-cursor signal"
 3	copyright: "[
 4					Copyright (C) 2007 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 MOVE_CURSOR_CALLBACK
26
27inherit CALLBACK redefine object end
28
29insert G_OBJECT_FACTORY [GTK_TEXT_VIEW]
30
31creation make
32
33feature
34	object: GTK_TEXT_VIEW
35
36feature
37	callback (step, count, extend_selection: INTEGER; instance: POINTER) is
38		do
39			-- The following is written with the implicit requirement 
40			-- that the object is actually created by the Eiffel 
41			object := wrapper(instance)
42
43			procedure.call ([step, count, extend_selection.to_boolean, object])
44		end
45
46	callback_pointer: POINTER is
47		do
48			Result := get_callback_pointer ($callback)
49		ensure
50			Result.is_not_null
51		end
52
53	connect (an_object: GTK_TEXT_VIEW; a_procedure: PROCEDURE [ANY, TUPLE[INTEGER, INTEGER, BOOLEAN, GTK_TEXT_VIEW]]) is
54		do
55			handler_id := g_signal_connect_closure (an_object.handle,
56																 signal_name.to_external,
57																 handle,
58																 1 -- i.e. call it after default handler
59																)
60			procedure := a_procedure
61		end
62
63		signal_name: STRING is "move-cursor"
64
65	procedure: PROCEDURE [ANY, TUPLE[INTEGER, INTEGER, BOOLEAN, GTK_TEXT_VIEW]]
66
67end -- class MOVE_CURSOR_CALLBACK