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Dpm.h
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Dpm.h
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/*
Scan Tailor - Interactive post-processing tool for scanned pages.
Copyright (C) 2007-2008 Joseph Artsimovich <[email protected]>
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef DPM_H_
#define DPM_H_
#include <QSize>
class Dpi;
class QImage;
/**
* \brief Dots per meter (horizontal and vertical).
*/
class Dpm
{
// Member-wise copying is OK.
public:
Dpm() : m_xDpm(0), m_yDpm(0) {}
Dpm(int horizontal, int vertical) : m_xDpm(horizontal), m_yDpm(vertical) {}
Dpm(Dpi dpi);
explicit Dpm(QSize size);
explicit Dpm(QImage const& image);
int horizontal() const { return m_xDpm; }
int vertical() const { return m_yDpm; }
QSize toSize() const;
bool isNull() const;
bool operator==(Dpm const& other) const;
bool operator!=(Dpm const& other) const { return !(*this == other); }
private:
int m_xDpm;
int m_yDpm;
};
#endif