/* $Id: treedragsource.hg,v 1.8 2006/05/10 20:59:28 murrayc Exp $ */

/* Copyright (C) 1998-2002 The gtkmm Development Team
 *
 * 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 2.1 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <glibmm/interface.h>
#include <gtkmm/treemodel.h>
#include <gtkmm/selectiondata.h>
_DEFS(gtkmm,gtk)
_PINCLUDE(glibmm/private/interface_p.h)

#ifndef DOXYGEN_SHOULD_SKIP_THIS
extern "C"
{
typedef struct _GtkTreeDragSourceIface GtkTreeDragSourceIface;
typedef struct _GtkSelectionData GtkSelectionData;
}
#endif /* DOXYGEN_SHOULD_SKIP_THIS */


namespace Gtk
{

/**
 * @ingroup TreeView
*/
class TreeDragSource : public Glib::Interface
{
  _CLASS_INTERFACE(TreeDragSource, GtkTreeDragSource, GTK_TREE_DRAG_SOURCE, GtkTreeDragSourceIface)

public:
  _WRAP_METHOD(bool row_draggable(const TreeModel::Path& path) const, gtk_tree_drag_source_row_draggable)

  _WRAP_METHOD(bool drag_data_get(const TreeModel::Path& path, SelectionData& selection_data), gtk_tree_drag_source_drag_data_get)
               
  _WRAP_METHOD(bool drag_data_delete(const TreeModel::Path& path), gtk_tree_drag_source_drag_data_delete)

protected:

#m4begin
dnl// We want to hand-code these C vfunc callbacks,
  _PUSH(SECTION_PCC_CLASS_INIT_VFUNCS)
    klass->drag_data_get = &drag_data_get_vfunc_callback;
  _SECTION(SECTION_PH_VFUNCS)
    static gboolean drag_data_get_vfunc_callback(GtkTreeDragSource* self, GtkTreePath* path, GtkSelectionData* selection_data);
  _POP()
#m4end

  _WRAP_VFUNC(bool row_draggable(const TreeModel::Path& path) const, row_draggable)

  //We hand-code this so that we can use a temporary instance for the SelectionData& output parameter:
  #ifdef GLIBMM_VFUNCS_ENABLED
  virtual bool drag_data_get_vfunc(const TreeModel::Path& path, SelectionData& selection_data) const;
  #endif //GLIBMM_VFUNCS_ENABLED
   
  _WRAP_VFUNC(bool drag_data_delete(const TreeModel::Path& path), drag_data_delete)
};

} // namespace Gtk

