/src/wrappers/gtk/library/drag_leave_callback.e
Specman e | 84 lines | 67 code | 14 blank | 3 comment | 3 complexity | 56b8376a6da095b7d3758844f6708f92 MD5 | raw file
1indexing 2 description: "Generic callback for the drag-leave 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 DRAG_LEAVE_CALLBACK 26 27inherit CALLBACK redefine object end 28 29insert G_OBJECT_FACTORY [GTK_WIDGET] 30 31creation make 32 33feature 34 object: GTK_WIDGET 35 36feature 37 callback (drag_context_ptr: POINTER; time: INTEGER; instance: POINTER) is 38 require 39 time >= 0 40 local 41 -- factory: G_OBJECT_EXPANDED_FACTORY [GDK_DRAG_CONTEXT] 42 drag_context: GDK_DRAG_CONTEXT 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 object actually has an Eiffel wrapper. 49 object := wrapper(instance) 50 create drag_context.secondary_wrapper_from(drag_context_ptr) 51 procedure.call ([drag_context, time, object]) 52 ensure 53 time >= 0 54 end 55 56 callback_pointer: POINTER is 57 do 58 Result := get_callback_pointer ($callback) 59 ensure 60 Result.is_not_null 61 end 62 63 connect (an_object: GTK_WIDGET; a_procedure: PROCEDURE [ANY, TUPLE[GDK_DRAG_CONTEXT, INTEGER, GTK_WIDGET]]) is 64 do 65 debug 66 print ("DRAG_LEAVE_CALLBACK.connect (an_object=") print (an_object.to_pointer.to_string) 67 print (" an_object.handle=") print (an_object.handle.to_string) 68 print (") Current=") print (to_pointer.to_string) 69 print (" Current.handle=") print (handle.to_string) 70 print ("%N") 71 end 72 73 handler_id := g_signal_connect_closure (an_object.handle, 74 signal_name.to_external, 75 handle, 76 0 -- i.e. call it before default handler 77 ) 78 procedure:=a_procedure 79 end 80 81 signal_name: STRING is "drag-leave" 82 83 procedure: PROCEDURE [ANY, TUPLE[GDK_DRAG_CONTEXT, INTEGER, GTK_WIDGET]] 84end