/src/wrappers/gtk/library/change_current_page_callback.e
Specman e | 76 lines | 60 code | 14 blank | 2 comment | 3 complexity | ffd6f38f169230d78139055d5f5a60e8 MD5 | raw file
1indexing 2 description: "Generic callback for the change-current-page 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 CHANGE_CURRENT_PAGE_CALLBACK 26 27inherit CALLBACK redefine object end 28 29insert G_OBJECT_FACTORY [GTK_NOTEBOOK] 30 31creation make 32 33feature 34 object: GTK_NOTEBOOK 35 36feature 37 callback (arg1: INTEGER; instance: POINTER) is 38 do 39 debug 40 print ("Callback: instance=") print (instance.to_string) print ("%N") 41 end 42 -- The following is written with the implicit requirement 43 -- that object actually has an Eiffel wrapper. 44 object := wrapper(instance) 45 procedure.call ([arg1, object]) 46 end 47 48 callback_pointer: POINTER is 49 do 50 Result := get_callback_pointer ($callback) 51 ensure 52 Result.is_not_null 53 end 54 55 connect (an_object: GTK_NOTEBOOK; a_procedure: PROCEDURE [ANY, TUPLE[INTEGER, GTK_NOTEBOOK]]) is 56 do 57 debug 58 print ("CHANGE_CURRENT_PAGE_CALLBACK.connect (an_object=") print (an_object.to_pointer.to_string) 59 print (" an_object.handle=") print (an_object.handle.to_string) 60 print (") Current=") print (to_pointer.to_string) 61 print (" Current.handle=") print (handle.to_string) 62 print ("%N") 63 end 64 65 handler_id := g_signal_connect_closure (an_object.handle, 66 signal_name.to_external, 67 handle, 68 0 -- i.e. call it before default handler 69 ) 70 procedure:=a_procedure 71 end 72 73 signal_name: STRING is "change-current-page" 74 75 procedure: PROCEDURE [ANY, TUPLE[INTEGER, GTK_NOTEBOOK]] 76end