/* -*- Mode: C; c-file-style: "gnu"; tab-width: 8 -*- */

/* GTK - The GIMP Toolkit

 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, write to the

 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

 * Boston, MA 02111-1307, USA.

 */

/*

 * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS

 * file for a list of people on the GTK+ Team.  See the ChangeLog

 * files for a list of changes.  These files are distributed with

 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.

 */

#ifndef __GTK_DND_H__

#define __GTK_DND_H__

#if defined(GTK_DISABLE_SINGLE_INCLUDES) && !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)

#error "Only <gtk/gtk.h> can be included directly."

#endif

#include <gtk/gtkwidget.h>

#include <gtk/gtkselection.h>

G_BEGIN_DECLS

typedef enum {

  GTK_DEST_DEFAULT_MOTION     = 1 << 0, /* respond to "drag_motion" */

  GTK_DEST_DEFAULT_HIGHLIGHT  = 1 << 1, /* auto-highlight */

  GTK_DEST_DEFAULT_DROP       = 1 << 2, /* respond to "drag_drop" */

  GTK_DEST_DEFAULT_ALL        = 0x07

} GtkDestDefaults;

/* Flags for the GtkTargetEntry on the destination side

 */

typedef enum {

  GTK_TARGET_SAME_APP = 1 << 0,    /*< nick=same-app >*/

  GTK_TARGET_SAME_WIDGET = 1 << 1, /*< nick=same-widget >*/

  GTK_TARGET_OTHER_APP = 1 << 2,   /*< nick=other-app >*/

  GTK_TARGET_OTHER_WIDGET = 1 << 3 /*< nick=other-widget >*/

} GtkTargetFlags;

/* Destination side */

void gtk_drag_get_data (GtkWidget      *widget,

			GdkDragContext *context,

			GdkAtom         target,

			guint32         time_);

void gtk_drag_finish   (GdkDragContext *context,

			gboolean        success,

			gboolean        del,

			guint32         time_);

GtkWidget *gtk_drag_get_source_widget (GdkDragContext *context);

void gtk_drag_highlight   (GtkWidget  *widget);

void gtk_drag_unhighlight (GtkWidget  *widget);

void gtk_drag_dest_set   (GtkWidget            *widget,

			  GtkDestDefaults       flags,

  		          const GtkTargetEntry *targets,

			  gint                  n_targets,

			  GdkDragAction         actions);

void gtk_drag_dest_set_proxy (GtkWidget      *widget,

			      GdkWindow      *proxy_window,

			      GdkDragProtocol protocol,

			      gboolean        use_coordinates);

void gtk_drag_dest_unset (GtkWidget          *widget);

GdkAtom        gtk_drag_dest_find_target     (GtkWidget      *widget,

                                              GdkDragContext *context,

                                              GtkTargetList  *target_list);

GtkTargetList* gtk_drag_dest_get_target_list (GtkWidget      *widget);

void           gtk_drag_dest_set_target_list (GtkWidget      *widget,

                                              GtkTargetList  *target_list);

void           gtk_drag_dest_add_text_targets  (GtkWidget    *widget);

void           gtk_drag_dest_add_image_targets (GtkWidget    *widget);

void           gtk_drag_dest_add_uri_targets   (GtkWidget    *widget);

void           gtk_drag_dest_set_track_motion  (GtkWidget *widget,

						gboolean   track_motion);

gboolean       gtk_drag_dest_get_track_motion  (GtkWidget *widget);

/* Source side */

void gtk_drag_source_set  (GtkWidget            *widget,

			   GdkModifierType       start_button_mask,

			   const GtkTargetEntry *targets,

			   gint                  n_targets,

			   GdkDragAction         actions);

void gtk_drag_source_unset (GtkWidget        *widget);

GtkTargetList* gtk_drag_source_get_target_list (GtkWidget     *widget);

void           gtk_drag_source_set_target_list (GtkWidget     *widget,

                                                GtkTargetList *target_list);

void           gtk_drag_source_add_text_targets  (GtkWidget     *widget);

void           gtk_drag_source_add_image_targets (GtkWidget    *widget);

void           gtk_drag_source_add_uri_targets   (GtkWidget    *widget);

void gtk_drag_source_set_icon        (GtkWidget   *widget,

				      GdkColormap *colormap,

				      GdkPixmap   *pixmap,

				      GdkBitmap   *mask);

void gtk_drag_source_set_icon_pixbuf (GtkWidget   *widget,

				      GdkPixbuf   *pixbuf);

void gtk_drag_source_set_icon_stock  (GtkWidget   *widget,

				      const gchar *stock_id);

void gtk_drag_source_set_icon_name   (GtkWidget   *widget,

				      const gchar *icon_name);

/* There probably should be functions for setting the targets

 * as a GtkTargetList

 */

GdkDragContext *gtk_drag_begin (GtkWidget         *widget,

				GtkTargetList     *targets,

				GdkDragAction      actions,

				gint               button,

				GdkEvent          *event);

/* Set the image being dragged around

 */

void gtk_drag_set_icon_widget (GdkDragContext *context,

			       GtkWidget      *widget,

			       gint            hot_x,

			       gint            hot_y);

void gtk_drag_set_icon_pixmap (GdkDragContext *context,

			       GdkColormap    *colormap,

			       GdkPixmap      *pixmap,

			       GdkBitmap      *mask,

			       gint            hot_x,

			       gint            hot_y);

void gtk_drag_set_icon_pixbuf (GdkDragContext *context,

			       GdkPixbuf      *pixbuf,

			       gint            hot_x,

			       gint            hot_y);

void gtk_drag_set_icon_stock  (GdkDragContext *context,

			       const gchar    *stock_id,

			       gint            hot_x,

			       gint            hot_y);

void gtk_drag_set_icon_name   (GdkDragContext *context,

			       const gchar    *icon_name,

			       gint            hot_x,

			       gint            hot_y);

void gtk_drag_set_icon_default (GdkDragContext    *context);

gboolean gtk_drag_check_threshold (GtkWidget *widget,

				   gint       start_x,

				   gint       start_y,

				   gint       current_x,

				   gint       current_y);

/* Internal functions */

void _gtk_drag_source_handle_event (GtkWidget *widget,

				    GdkEvent  *event);

void _gtk_drag_dest_handle_event (GtkWidget *toplevel,

				  GdkEvent  *event);

#ifndef GTK_DISABLE_DEPRECATED

void gtk_drag_set_default_icon (GdkColormap   *colormap,

				GdkPixmap     *pixmap,

				GdkBitmap     *mask,

			        gint           hot_x,

			        gint           hot_y);

#endif /* !GTK_DISABLE_DEPRECATED */

G_END_DECLS

#endif /* __GTK_DND_H__ */