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point.hpp
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point.hpp
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/*
* KDots
* Copyright (c) 2011-2012 Minh Ngo <nlminhtl@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef KDOTS_POINT_HPP
#define KDOTS_POINT_HPP
#include <QMetaType>
#include "constants.hpp"
namespace KDots
{
class KDOTS_EXPORT Point
{
int m_x, m_y;
public:
inline Point ()
: m_x (-1)
, m_y (-1)
{}
bool isInitialized () const
{
return m_x < 0 || m_y < 0;
}
inline Point (int x, int y)
: m_x (x)
, m_y (y)
{}
inline int x () const
{
return m_x;
}
inline int y () const
{
return m_y;
}
inline void setX (int x)
{
m_x = x;
}
inline void setY (int y)
{
m_y = y;
}
Point operator* (int val) const
{
return Point (m_x * val, m_y * val);
}
Point operator+ (int val) const
{
return Point (m_x + val, m_y + val);
}
inline bool operator== (const Point& a) const
{
return m_x == a.m_x && m_y == a.m_y;
}
inline bool operator!= (const Point& a) const
{
return ! (*this == a);
}
inline bool empty () const
{
return m_x == -1 || m_y == -1;
}
friend QDataStream& operator<< (QDataStream& out, const KDots::Point& obj);
friend QDataStream& operator>> (QDataStream& in, KDots::Point& obj);
};
QDataStream& operator<< (QDataStream& out, const KDots::Point& obj);
QDataStream& operator>> (QDataStream& in, KDots::Point& obj);
}
Q_DECLARE_METATYPE (KDots::Point);
#endif