1 /* eggtreednd.h
2  * Copyright (C) 2001  Red Hat, Inc.
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Library General Public
6  * License as published by the Free Software Foundation; either
7  * version 2 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * Library General Public License for more details.
13  *
14  * You should have received a copy of the GNU Library General Public
15  * License along with this library; if not, write to the
16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17  * Boston, MA 02111-1307, USA.
18  *
19  * Adapted by Pierre Wieser for the needs of Nautilus-Actions
20  */
21 
22 #ifndef __EGG_TREE_MULTI_DND_H__
23 #define __EGG_TREE_MULTI_DND_H__
24 
25 #include <gtk/gtk.h>
26 
27 G_BEGIN_DECLS
28 
29 #define EGG_TYPE_TREE_MULTI_DRAG_SOURCE					( egg_tree_multi_drag_source_get_type())
30 #define EGG_TREE_MULTI_DRAG_SOURCE( object )			( G_TYPE_CHECK_INSTANCE_CAST(( object ), EGG_TYPE_TREE_MULTI_DRAG_SOURCE, EggTreeMultiDragSource ))
31 #define EGG_IS_TREE_MULTI_DRAG_SOURCE( object )			( G_TYPE_CHECK_INSTANCE_TYPE(( object ), EGG_TYPE_TREE_MULTI_DRAG_SOURCE ))
32 #define EGG_TREE_MULTI_DRAG_SOURCE_GET_IFACE( object )	( G_TYPE_INSTANCE_GET_INTERFACE(( object ), EGG_TYPE_TREE_MULTI_DRAG_SOURCE, EggTreeMultiDragSourceIface ))
33 
34 typedef struct EggTreeMultiDragSource      EggTreeMultiDragSource;
35 typedef struct EggTreeMultiDragSourceIface EggTreeMultiDragSourceIface;
36 
37 struct EggTreeMultiDragSourceIface
38 {
39 	GTypeInterface g_iface;
40 
41 	/* vtable - not signals */
42 	gboolean        ( *row_draggable )   ( EggTreeMultiDragSource *drag_source, GList *path_list );
43 	gboolean        ( *drag_data_get )   ( EggTreeMultiDragSource *drag_source, GdkDragContext *context, GtkSelectionData *selection_data, GList *path_list, guint info );
44 	gboolean        ( *drag_data_delete )( EggTreeMultiDragSource *drag_source, GList *path_list );
45 	GtkTargetList * ( *get_target_list ) ( EggTreeMultiDragSource *drag_source );
46 	void            ( *free_target_list )( EggTreeMultiDragSource *drag_source, GtkTargetList *list );
47 	GdkDragAction   ( *get_drag_actions )( EggTreeMultiDragSource *drag_source );
48 };
49 
50 GType    egg_tree_multi_drag_source_get_type( void ) G_GNUC_CONST;
51 
52 /* initialize drag support on the treeview */
53 void     egg_tree_multi_drag_add_drag_support( EggTreeMultiDragSource *drag_source, GtkTreeView *tree_view );
54 
55 /* returns whether the given row can be dragged */
56 gboolean egg_tree_multi_drag_source_row_draggable( EggTreeMultiDragSource *drag_source, GList *path_list );
57 
58 /* Fills in selection_data with type selection_data->target based on the row
59  * denoted by path, returns TRUE if it does anything
60  */
61 gboolean egg_tree_multi_drag_source_drag_data_get( EggTreeMultiDragSource *drag_source, GdkDragContext *context, GtkSelectionData *selection_data, GList *path_list, guint info );
62 
63 /* deletes the given row, or returns FALSE if it can't */
64 gboolean egg_tree_multi_drag_source_drag_data_delete( EggTreeMultiDragSource *drag_source, GList *path_list );
65 
66 G_END_DECLS
67 
68 #endif /* __EGG_TREE_MULTI_DND_H__ */
69