forked from AuroraMiddleware/gtk
166 lines
6.2 KiB
C
166 lines
6.2 KiB
C
/* gtktreednd.h
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* Copyright (C) 2001 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __GTK_TREE_DND_H__
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#define __GTK_TREE_DND_H__
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#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
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#error "Only <gtk/gtk.h> can be included directly."
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#endif
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#include <gtk/gtktreemodel.h>
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G_BEGIN_DECLS
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/**
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* GTK_TYPE_TREE_ROW_DATA:
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* Magic #GType to use when dragging rows in a #GtkTreeModel.
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*
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* Data in this format will be provided by gtk_tree_create_row_drag_content()
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* and can be consumed via gtk_tree_get_row_drag_data().
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*/
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#define GTK_TYPE_TREE_ROW_DATA (gtk_tree_row_data_get_type ())
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GDK_AVAILABLE_IN_ALL
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GType gtk_tree_row_data_get_type (void) G_GNUC_CONST;
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#define GTK_TYPE_TREE_DRAG_SOURCE (gtk_tree_drag_source_get_type ())
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#define GTK_TREE_DRAG_SOURCE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_TREE_DRAG_SOURCE, GtkTreeDragSource))
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#define GTK_IS_TREE_DRAG_SOURCE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_TREE_DRAG_SOURCE))
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#define GTK_TREE_DRAG_SOURCE_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GTK_TYPE_TREE_DRAG_SOURCE, GtkTreeDragSourceIface))
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typedef struct _GtkTreeDragSource GtkTreeDragSource; /* Dummy typedef */
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typedef struct _GtkTreeDragSourceIface GtkTreeDragSourceIface;
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/**
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* GtkTreeDragSourceIface:
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* @row_draggable: Asks the #GtkTreeDragSource whether a particular
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* row can be used as the source of a DND operation.
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* @drag_data_get: Asks the #GtkTreeDragSource to fill in
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* selection_data with a representation of the row at path.
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* @drag_data_delete: Asks the #GtkTreeDragSource to delete the row at
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* path, because it was moved somewhere else via drag-and-drop.
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*/
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struct _GtkTreeDragSourceIface
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{
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/*< private >*/
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GTypeInterface g_iface;
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/*< public >*/
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/* VTable - not signals */
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gboolean (* row_draggable) (GtkTreeDragSource *drag_source,
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GtkTreePath *path);
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GdkContentProvider * (* drag_data_get)(GtkTreeDragSource *drag_source,
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GtkTreePath *path);
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gboolean (* drag_data_delete) (GtkTreeDragSource *drag_source,
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GtkTreePath *path);
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};
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GDK_AVAILABLE_IN_ALL
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GType gtk_tree_drag_source_get_type (void) G_GNUC_CONST;
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/* Returns whether the given row can be dragged */
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_tree_drag_source_row_draggable (GtkTreeDragSource *drag_source,
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GtkTreePath *path);
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/* Deletes the given row, or returns FALSE if it can't */
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_tree_drag_source_drag_data_delete (GtkTreeDragSource *drag_source,
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GtkTreePath *path);
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/* Fills in selection_data with type selection_data->target based on
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* the row denoted by path, returns TRUE if it does anything
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*/
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GDK_AVAILABLE_IN_ALL
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GdkContentProvider *
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gtk_tree_drag_source_drag_data_get (GtkTreeDragSource *drag_source,
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GtkTreePath *path);
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#define GTK_TYPE_TREE_DRAG_DEST (gtk_tree_drag_dest_get_type ())
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#define GTK_TREE_DRAG_DEST(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_TREE_DRAG_DEST, GtkTreeDragDest))
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#define GTK_IS_TREE_DRAG_DEST(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_TREE_DRAG_DEST))
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#define GTK_TREE_DRAG_DEST_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GTK_TYPE_TREE_DRAG_DEST, GtkTreeDragDestIface))
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typedef struct _GtkTreeDragDest GtkTreeDragDest; /* Dummy typedef */
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typedef struct _GtkTreeDragDestIface GtkTreeDragDestIface;
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/**
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* GtkTreeDragDestIface:
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* @drag_data_received: Asks the #GtkTreeDragDest to insert a row
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* before the path dest, deriving the contents of the row from
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* selection_data.
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* @row_drop_possible: Determines whether a drop is possible before
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* the given dest_path, at the same depth as dest_path.
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*/
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struct _GtkTreeDragDestIface
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{
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/*< private >*/
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GTypeInterface g_iface;
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/*< public >*/
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/* VTable - not signals */
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gboolean (* drag_data_received) (GtkTreeDragDest *drag_dest,
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GtkTreePath *dest,
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const GValue *value);
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gboolean (* row_drop_possible) (GtkTreeDragDest *drag_dest,
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GtkTreePath *dest_path,
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const GValue *value);
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};
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GDK_AVAILABLE_IN_ALL
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GType gtk_tree_drag_dest_get_type (void) G_GNUC_CONST;
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/* Inserts a row before dest which contains data in selection_data,
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* or returns FALSE if it can't
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*/
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_tree_drag_dest_drag_data_received (GtkTreeDragDest *drag_dest,
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GtkTreePath *dest,
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const GValue *value);
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/* Returns TRUE if we can drop before path; path may not exist. */
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_tree_drag_dest_row_drop_possible (GtkTreeDragDest *drag_dest,
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GtkTreePath *dest_path,
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const GValue *value);
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/* The selection data would normally have target type GTK_TREE_MODEL_ROW in this
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* case. If the target is wrong these functions return FALSE.
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*/
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GDK_AVAILABLE_IN_ALL
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GdkContentProvider *
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gtk_tree_create_row_drag_content (GtkTreeModel *tree_model,
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GtkTreePath *path);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_tree_get_row_drag_data (const GValue *value,
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GtkTreeModel **tree_model,
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GtkTreePath **path);
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G_END_DECLS
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#endif /* __GTK_TREE_DND_H__ */
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