118 lines
2.7 KiB
C++
118 lines
2.7 KiB
C++
/*
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* This file is part of libgim.
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*
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* libgim is free software: you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* libgim is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with libgim. If not, see <http://www.gnu.org/licenses/>.
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*
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* Copyright 2010-2012 Danny Robson <danny@nerdcruft.net>
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*/
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#include "extent.hpp"
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#include "debug.hpp"
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#include "maths.hpp"
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#include <cmath>
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using namespace util;
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//-----------------------------------------------------------------------------
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template <typename T>
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extent<T>::extent (const T _width, const T _height):
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w (_width),
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h (_height)
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{ ; }
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template <typename T>
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extent<T>::extent (const extent<T> &rhs):
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w (rhs.w),
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h (rhs.h)
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{ ; }
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template <typename T>
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extent<T>&
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extent<T>::operator= (const extent<T> &rhs) {
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w = rhs.w;
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h = rhs.h;
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return *this;
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}
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//-----------------------------------------------------------------------------
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template <typename T>
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T
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extent<T>::diameter (void) const {
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return (T)sqrt (w * w + h * h);
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}
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template <typename T>
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T
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extent<T>::area (void) const
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{ return w * h; }
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//-----------------------------------------------------------------------------
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template <typename T>
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double
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extent<T>::aspect (void) const
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{ return static_cast<double> (w) / h; }
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//-----------------------------------------------------------------------------
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template <typename T>
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bool
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extent<T>::empty (void) const
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{ return almost_equal (area(), 0); }
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//-----------------------------------------------------------------------------
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template <typename T>
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bool
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extent<T>::operator ==(const extent& rhs) const {
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return almost_equal (w, rhs.w) &&
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almost_equal (h, rhs.h);
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}
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//-----------------------------------------------------------------------------
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template <typename T>
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void
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extent<T>::sanity (void) const
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{ CHECK (w >= 0 && h >= 0); }
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namespace util {
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template <>
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void
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extent<unsigned int>::sanity (void) const
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{ return; }
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template <>
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void
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extent<unsigned long>::sanity (void) const
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{ return; }
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}
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//-----------------------------------------------------------------------------
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namespace util {
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template struct extent<unsigned int>;
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template struct extent<unsigned long>;
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template struct extent<double>;
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}
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