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/*
* vim: ts=4 sw=4 et tw=0 wm=0
*
* libcola - A library providing force-directed network layout using the
* stress-majorization method subject to separation constraints.
*
* Copyright (C) 2014 Monash University
*
* 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.
* See the file LICENSE.LGPL distributed with the library.
*
* 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.
*
* Author(s): Michael Wybrow
*
*/
#ifndef LIBCOLA_BOX_H
#define LIBCOLA_BOX_H
#include <cstdio>
#include "libvpsc/rectangle.h"
namespace cola {
/**
* @brief A box consisting of four edge values for representing padding or
* margins for rectangles.
*/
class Box
{
public:
/**
* @brief Constructs a padding or margin box consisting of a value for
* each edge.
*
* Values should be nonnegative.
*
* @param[in] xMin Minimum horizontal value.
* @param[in] xMax Maximum horizontal value.
* @param[in] yMin Minimum vertical value.
* @param[in] yMax Maximum vertical value.
*/
Box(double xMin, double xMax, double yMin, double yMax);
/**
* @brief Constructs a padding or margin box consisting of a value for
* each edge.
*
* Values should be nonnegative.
*
* @param[in] all The value to be used for all four edges.
*/
Box(double all);
/**
* @brief Constructs an empty padding or margin box.
*/
Box();
~Box();
bool empty(void) const;
double min(size_t dim) const;
double max(size_t dim) const;
void outputCode(FILE *fp) const;
vpsc::Rectangle rectangleByApplyingBox(
const vpsc::Rectangle rectangle) const;
private:
static double nonNegative(double value);
double m_min[2];
double m_max[2];
};
} // namespace cola
#endif
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