TangencyCheck.h

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/* -*-c++-*-

  This file is part of the IC reverse engineering tool degate.

  Copyright 2008, 2009, 2010 by Martin Schobert

  Degate 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 3 of the License, or
  any later version.

  Degate 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 degate. If not, see <http://www.gnu.org/licenses/>.

*/

#ifndef __TANGENCYCHECK_H__
#define __TANGENCYCHECK_H__

#include <degate.h>
#include <globals.h>
#include <Circle.h>
#include <Line.h>
#include <Rectangle.h>
#include <PlacedLogicModelObject.h>

namespace degate {

  /**
   * Check if two objects are tangent. It is assumed that both
   * objects are on the same layer.
   * @return Returns whether the objects are touching each other.
   */
  bool check_object_tangency(PlacedLogicModelObject_shptr o1,
                             PlacedLogicModelObject_shptr o2);


  bool check_object_tangency(Circle_shptr o1,
                             Circle_shptr o2);


  bool check_object_tangency(Line_shptr o1,
                             Line_shptr o2);

  bool check_object_tangency(Rectangle_shptr o1,
                             Rectangle_shptr o2);

  bool check_object_tangency(Circle_shptr o1,
                             Line_shptr o2);


  bool check_object_tangency(Circle_shptr o1,
                             Rectangle_shptr o2);

  bool check_object_tangency(Line_shptr l,
                             Rectangle_shptr r);






}

#endif