text: /* -*- 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, see <http://www.gnu.org/licenses/>.
   */
  
  /*
   * 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_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
  
  /**
   * GtkDestDefaults:
   * @GTK_DEST_DEFAULT_MOTION: If set for a widget, GTK+, during a drag over this
   *   widget will check if the drag matches this widget’s list of possible targets
   *   and actions.
   *   GTK+ will then call gdk_drag_status() as appropriate.
   * @GTK_DEST_DEFAULT_HIGHLIGHT: If set for a widget, GTK+ will draw a highlight on
   *   this widget as long as a drag is over this widget and the widget drag format
   *   and action are acceptable.
   * @GTK_DEST_DEFAULT_DROP: If set for a widget, when a drop occurs, GTK+ will
   *   will check if the drag matches this widget’s list of possible targets and
   *   actions. If so, GTK+ will call gtk_drag_get_data() on behalf of the widget.
   *   Whether or not the drop is successful, GTK+ will call gtk_drag_finish(). If
   *   the action was a move, then if the drag was successful, then %TRUE will be
   *   passed for the @delete parameter to gtk_drag_finish().
   * @GTK_DEST_DEFAULT_ALL: If set, specifies that all default actions should
   *   be taken.
   *
   * The #GtkDestDefaults enumeration specifies the various
   * types of action that will be taken on behalf
   * of the user for a drag destination site.
   */
  typedef enum {
    GTK_DEST_DEFAULT_MOTION     = 1 << 0,
    GTK_DEST_DEFAULT_HIGHLIGHT  = 1 << 1,
    GTK_DEST_DEFAULT_DROP       = 1 << 2,
    GTK_DEST_DEFAULT_ALL        = 0x07
  } GtkDestDefaults;
  
  /**
   * GtkTargetFlags:
   * @GTK_TARGET_SAME_APP: If this is set, the target will only be selected
   *   for drags within a single application.
   * @GTK_TARGET_SAME_WIDGET: If this is set, the target will only be selected
   *   for drags within a single widget.
   * @GTK_TARGET_OTHER_APP: If this is set, the target will not be selected
   *   for drags within a single application.
   * @GTK_TARGET_OTHER_WIDGET: If this is set, the target will not be selected
   *   for drags withing a single widget.
   *
   * The #GtkTargetFlags enumeration is used to specify
   * constraints on a #GtkTargetEntry.
   */
  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 */
  
  GDK_AVAILABLE_IN_ALL
  void gtk_drag_get_data (GtkWidget      *widget,
  			GdkDragContext *context,
  			GdkAtom         target,
  			guint32         time_);
  GDK_AVAILABLE_IN_ALL
  void gtk_drag_finish   (GdkDragContext *context,
  			gboolean        success,
  			gboolean        del,
  			guint32         time_);
  
  GDK_AVAILABLE_IN_ALL
  GtkWidget *gtk_drag_get_source_widget (GdkDragContext *context);
  
  GDK_AVAILABLE_IN_ALL
  void gtk_drag_highlight   (GtkWidget  *widget);
  GDK_AVAILABLE_IN_ALL
  void gtk_drag_unhighlight (GtkWidget  *widget);
  
  GDK_AVAILABLE_IN_ALL
  void gtk_drag_dest_set   (GtkWidget            *widget,
  			  GtkDestDefaults       flags,
    		          const GtkTargetEntry *targets,
  			  gint                  n_targets,
  			  GdkDragAction         actions);
  
  GDK_AVAILABLE_IN_ALL
  void gtk_drag_dest_set_proxy (GtkWidget      *widget,
  			      GdkWindow      *proxy_window,
  			      GdkDragProtocol protocol,
  			      gboolean        use_coordinates);
  
  GDK_AVAILABLE_IN_ALL
  void gtk_drag_dest_unset (GtkWidget          *widget);
  
  GDK_AVAILABLE_IN_ALL
  GdkAtom        gtk_drag_dest_find_target     (GtkWidget      *widget,
                                                GdkDragContext *context,
                                                GtkTargetList  *target_list);
  GDK_AVAILABLE_IN_ALL
  GtkTargetList* gtk_drag_dest_get_target_list (GtkWidget      *widget);
  GDK_AVAILABLE_IN_ALL
  void           gtk_drag_dest_set_target_list (GtkWidget      *widget,
                                                GtkTargetList  *target_list);
  GDK_AVAILABLE_IN_ALL
  void           gtk_drag_dest_add_text_targets  (GtkWidget    *widget);
  GDK_AVAILABLE_IN_ALL
  void           gtk_drag_dest_add_image_targets (GtkWidget    *widget);
  GDK_AVAILABLE_IN_ALL
  void           gtk_drag_dest_add_uri_targets   (GtkWidget    *widget);
  
  GDK_AVAILABLE_IN_ALL
  void           gtk_drag_dest_set_track_motion  (GtkWidget *widget,
  						gboolean   track_motion);
  GDK_AVAILABLE_IN_ALL
  gboolean       gtk_drag_dest_get_track_motion  (GtkWidget *widget);
  
  /* Source side */
  
  GDK_AVAILABLE_IN_ALL
  void gtk_drag_source_set  (GtkWidget            *widget,
  			   GdkModifierType       start_button_mask,
  			   const GtkTargetEntry *targets,
  			   gint                  n_targets,
  			   GdkDragAction         actions);
  
  GDK_AVAILABLE_IN_ALL
  void gtk_drag_source_unset (GtkWidget        *widget);
  
  GDK_AVAILABLE_IN_ALL
  GtkTargetList* gtk_drag_source_get_target_list (GtkWidget     *widget);
  GDK_AVAILABLE_IN_ALL
  void           gtk_drag_source_set_target_list (GtkWidget     *widget,
                                                  GtkTargetList *target_list);
  GDK_AVAILABLE_IN_ALL
  void           gtk_drag_source_add_text_targets  (GtkWidget     *widget);
  GDK_AVAILABLE_IN_ALL
  void           gtk_drag_source_add_image_targets (GtkWidget    *widget);
  GDK_AVAILABLE_IN_ALL
  void           gtk_drag_source_add_uri_targets   (GtkWidget    *widget);
  
  GDK_AVAILABLE_IN_ALL
  void gtk_drag_source_set_icon_pixbuf  (GtkWidget       *widget,
  				       GdkPixbuf       *pixbuf);
  GDK_DEPRECATED_IN_3_10_FOR(gtk_drag_source_set_icon_name)
  void gtk_drag_source_set_icon_stock   (GtkWidget       *widget,
  				       const gchar     *stock_id);
  GDK_AVAILABLE_IN_ALL
  void gtk_drag_source_set_icon_name    (GtkWidget       *widget,
  				       const gchar     *icon_name);
  GDK_AVAILABLE_IN_3_2
  void gtk_drag_source_set_icon_gicon   (GtkWidget       *widget,
  				       GIcon           *icon);
  
  GDK_AVAILABLE_IN_3_10
  GdkDragContext *gtk_drag_begin_with_coordinates (GtkWidget         *widget,
                                                   GtkTargetList     *targets,
                                                   GdkDragAction      actions,
                                                   gint               button,
                                                   GdkEvent          *event,
                                                   gint               x,
                                                   gint               y);
  
  GDK_DEPRECATED_IN_3_10_FOR(gtk_drag_begin_with_coordinates)
  GdkDragContext *gtk_drag_begin (GtkWidget         *widget,
  				GtkTargetList     *targets,
  				GdkDragAction      actions,
  				gint               button,
  				GdkEvent          *event);
  
  GDK_AVAILABLE_IN_3_16
  void gtk_drag_cancel           (GdkDragContext *context);
  
  GDK_AVAILABLE_IN_ALL
  void gtk_drag_set_icon_widget (GdkDragContext *context,
  			       GtkWidget      *widget,
  			       gint            hot_x,
  			       gint            hot_y);
  GDK_AVAILABLE_IN_ALL
  void gtk_drag_set_icon_pixbuf (GdkDragContext *context,
  			       GdkPixbuf      *pixbuf,
  			       gint            hot_x,
  			       gint            hot_y);
  GDK_DEPRECATED_IN_3_10_FOR(gtk_drag_set_icon_name)
  void gtk_drag_set_icon_stock  (GdkDragContext *context,
  			       const gchar    *stock_id,
  			       gint            hot_x,
  			       gint            hot_y);
  GDK_AVAILABLE_IN_ALL
  void gtk_drag_set_icon_surface(GdkDragContext *context,
  			       cairo_surface_t *surface);
  GDK_AVAILABLE_IN_ALL
  void gtk_drag_set_icon_name   (GdkDragContext *context,
  			       const gchar    *icon_name,
  			       gint            hot_x,
  			       gint            hot_y);
  GDK_AVAILABLE_IN_3_2
  void gtk_drag_set_icon_gicon  (GdkDragContext *context,
  			       GIcon          *icon,
  			       gint            hot_x,
  			       gint            hot_y);
  
  GDK_AVAILABLE_IN_ALL
  void gtk_drag_set_icon_default (GdkDragContext    *context);
  
  GDK_AVAILABLE_IN_ALL
  gboolean gtk_drag_check_threshold (GtkWidget *widget,
  				   gint       start_x,
  				   gint       start_y,
  				   gint       current_x,
  				   gint       current_y);
  
  
  G_END_DECLS
  
  #endif /* __GTK_DND_H__ */
  