/*
 * $Revision: 2559 $
 *
 * last checkin:
 *   $Author: gutwenger $
 *   $Date: 2012-07-06 15:04:28 +0200 (Fri, 06 Jul 2012) $
 ***************************************************************/

/** \file
 * \brief Declaration of class Rectangle.
 *
 * \author Stefan Hachul
 *
 * \par License:
 * This file is part of the Open Graph Drawing Framework (OGDF).
 *
 * \par
 * Copyright (C)<br>
 * See README.txt in the root directory of the OGDF installation for details.
 *
 * \par
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * Version 2 or 3 as published by the Free Software Foundation;
 * see the file LICENSE.txt included in the packaging of this file
 * for details.
 *
 * \par
 * 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.
 *
 * \par
 * 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., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 *
 * \see  http://www.gnu.org/copyleft/gpl.html
 ***************************************************************/

#ifdef _MSC_VER
#pragma once
#endif

#ifndef OGDF_RECTANGLE_H
#define OGDF_RECTANGLE_H

#include <ogdf/basic/geometry.h>
#include <iostream>

namespace ogdf {

	class Rectangle
	{
		//Helping data structure for packing rectangles; The width, height and the position
		//of the down left corner of the tight surroundig rectangle is represented for each
		//connected component of the graph.

		//Outputstream for Rectangle.
		friend ostream &operator<< (ostream & output, const Rectangle & A)
		{
			output <<"width: "<< A.width<<" height: "<<A.height<<" old dlc_position: "
				<<A.old_down_left_corner_position<<" new dlc_position: "
				<<A.new_down_left_corner_position<<" coponenet_index: "<<A.component_index;
			if(A.tipped_over == true)
				output<<" is tipped_over";
			return output;
		}

		//Inputstream for Rectangle.
		friend istream &operator>> (istream & input,  Rectangle & A)
		{
			input >>A.width;
			return input;
		}

	public:

		Rectangle() //constructor
		{
			old_down_left_corner_position.m_x = 0;
			old_down_left_corner_position.m_y = 0;
			new_down_left_corner_position.m_x = 0;
			new_down_left_corner_position.m_y = 0;
			width = 0;
			height = 0;
			component_index = -1;
			tipped_over = false;
		}

		~Rectangle() { }    //destructor

		void set_rectangle (double w, double h, double old_dlc_x_pos,double
			old_dlc_y_pos,int comp_index)
		{
			width = w;
			height = h;
			old_down_left_corner_position.m_x = old_dlc_x_pos;
			old_down_left_corner_position.m_y = old_dlc_y_pos;
			component_index = comp_index;
			tipped_over = false;
		}

		void set_old_dlc_position(DPoint dlc_pos){old_down_left_corner_position = dlc_pos;}
		void set_new_dlc_position(DPoint dlc_pos){new_down_left_corner_position = dlc_pos;}
		void set_width(double w) {width = w;}
		void set_height(double h) {height = h;}
		void set_component_index (int comp_index) {component_index = comp_index;}
		void tipp_over()
		{
			if(tipped_over == false)
				tipped_over = true;
			else
				tipped_over = false;
		}

		DPoint get_old_dlc_position() const { return old_down_left_corner_position; }
		DPoint get_new_dlc_position() const { return new_down_left_corner_position; }
		double get_width() const {return width;}
		double get_height() const {return height;}
		int get_component_index() const {return component_index;}
		bool is_tipped_over() const {return tipped_over;}

	private:
		DPoint old_down_left_corner_position;//down left corner of the tight surround. rect.
		DPoint new_down_left_corner_position;//new calculated down left corner of ...
		double width;                     //width of the surround. rect.
		double height;                    //height of the surround. rect.
		int component_index;  //the index of the related connected component
		bool tipped_over;     //indicates if this rectangle has been tipped over in the
		//packing step

	};


	//Needed for sorting algorithms in ogdf/List and ogdf/Array.
	class RectangleComparerHeight
	{
	public:
		RectangleComparerHeight() { }
		~RectangleComparerHeight() { }

		bool less(const Rectangle& A,const Rectangle & B) const
		{
			if(A.get_height() > B.get_height() )
				return  true;
			else
				return false;
		}

		bool leq(const Rectangle& A,const Rectangle & B) const
		{
			if(A.get_height() >= B.get_height() )
				return  true;
			else
				return false;
		}

		bool equal(const Rectangle& A,const Rectangle & B) const
		{
			if(A.get_height() == B.get_height() )
				return  true;
			else
				return false;
		}
	};


	class RectangleComparerWidth
	{
	public:
		RectangleComparerWidth() { }
		~RectangleComparerWidth() { }

		bool less(const Rectangle& A,const Rectangle & B) const
		{
			if(A.get_width() > B.get_width() )
				return  true;
			else
				return false;
		}

		bool leq(const Rectangle& A,const Rectangle & B) const
		{
			if(A.get_width() >= B.get_width() )
				return  true;
			else
				return false;
		}

		bool equal(const Rectangle& A,const Rectangle & B) const
		{
			if(A.get_width() == B.get_width() )
				return  true;
			else
				return false;
		}
	};

}//namespace ogdf
#endif


