72 lines
1.8 KiB
C++
72 lines
1.8 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 2010-2015 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __UTIL_EXTENT_HPP
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#define __UTIL_EXTENT_HPP
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#include "vector.hpp"
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#include <iostream>
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namespace util {
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/**
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* A pure two-dimensional size, without positioning
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*/
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template <typename T>
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struct extent {
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T w, h;
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extent (const T _width, const T _height);
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extent (const extent&);
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extent& operator= (const extent&);
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extent () = default;
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T area (void) const;
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T diameter (void) const;
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extent<T> expanded (util::vector<2,T>) const;
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extent<T> expanded (T) const;
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float aspect (void) const;
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bool empty (void) const;
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bool operator ==(const extent& rhs) const;
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bool operator !=(const extent& rhs) const
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{ return !(*this == rhs); }
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template <typename U>
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extent<U> cast (void) const;
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void sanity (void) const;
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};
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typedef extent<int> extent2i;
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typedef extent<size_t> extent2u;
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typedef extent<float> extent2f;
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template <typename T>
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std::ostream& operator<< (std::ostream&, util::extent<T>);
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}
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#include "extent.ipp"
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#endif
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