/src/wrappers/gtk/library/drag_drop_callback.e
Specman e | 79 lines | 63 code | 15 blank | 1 comment | 3 complexity | dd2f1dcee5d14d3f628c46a1e4cb7101 MD5 | raw file
1indexing 2 description: "Generic callback for the drag-drop 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_DROP_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; x, y, time: INTEGER; instance: POINTER): INTEGER is 38 -- require time >= 0 39 local drag_context: GDK_DRAG_CONTEXT 40 do 41 debug 42 print ("Callback: instance=") print (instance.to_string) print ("%N") 43 end 44 object := wrapper(instance) 45 create drag_context.secondary_wrapper_from(drag_context_ptr) 46 Result := function.item ([drag_context, x, y, time, object]).to_integer 47 end 48 49 callback_pointer: POINTER is 50 do 51 Result := get_callback_pointer ($callback) 52 ensure 53 Result.is_not_null 54 end 55 56 connect (an_object: GTK_WIDGET; a_function: FUNCTION [ANY, TUPLE [GDK_DRAG_CONTEXT, INTEGER, INTEGER, 57 INTEGER, GTK_WIDGET], BOOLEAN]) is 58 do 59 debug 60 print ("DRAG_DROP_CALLBACK.connect (an_object=") print (an_object.to_pointer.to_string) 61 print (" an_object.handle=") print (an_object.handle.to_string) 62 print (") Current=") print (to_pointer.to_string) 63 print (" Current.handle=") print (handle.to_string) 64 print ("%N") 65 end 66 67 handler_id := g_signal_connect_closure (an_object.handle, 68 signal_name.to_external, 69 handle, 70 0 -- i.e. call it before default handler 71 ) 72 function:=a_function 73 end 74 75 signal_name: STRING is "drag-drop" 76 77 function: FUNCTION [ANY, TUPLE [GDK_DRAG_CONTEXT, INTEGER, INTEGER, INTEGER, GTK_WIDGET], BOOLEAN] 78 79end