drag.h

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/*
 *  drag.cc - Dragging objects in Game_window.
 *
 *  Copyright (C) 2000-2001  The Exult Team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef INCL_DRAG_H
#define INCL_DRAG_H

#include "singles.h"

/*
 *  Data needed when dragging an object.
 */
class Dragging_info : public Game_singletons
  {
  Game_object *obj;   // What's being dragged.
  bool is_new;      // Object was newly created.
  Gump *gump;
  Gump_button *button;
  Tile_coord old_pos;   // Original pos. of object if it wasn't
          //   in a container.
  Rectangle old_foot;   // Original footprint.
  int old_lift;     // Lift of obj OR its owner.
  int quantity;     // Amount of object being moved.
  int readied_index;    // If it was a 'readied' item.
          // Last mouse, paint positions:
  int mousex, mousey, paintx, painty;
  Rectangle rect;     // Rectangle to repaint.
  Image_buffer *save;   // Image below dragged object.
  bool okay;      // True if drag constructed okay.
  bool possible_theft;    // Moved enough to be 'theft'.

  bool start(int x, int y); // First motion.
  void put_back();    // Put back object.
  bool drop_on_gump(int x, int y, Game_object *to_drop, Gump *gump);
  bool drop_on_map(int x, int y, Game_object *to_drop);
  bool drop(int x, int y);  // Drop obj. at given position.
public:
  friend class Game_window;
          // Create for dropping new object.
  Dragging_info(Game_object *newobj);
  Dragging_info(int x, int y);  // Create for given mouse position.
  ~Dragging_info();
  bool moved(int x, int y); // Mouse moved.
  void paint();     // Paint object being dragged.
          // Mouse button released.
  bool drop(int x, int y, bool moved);
  };

#endif  /* INCL_DRAG_H */

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