66 lines
1.8 KiB
C++
66 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 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __UTIL_REGION_HPP
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#define __UTIL_REGION_HPP
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#include "point.hpp"
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namespace util {
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/**
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* A two-dimensional rectangle, with size and position.
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*/
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template <typename T>
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struct region {
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T x, y;
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T w, h;
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region (T _x, T _y, T _w, T _h);
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region& operator +=(const vector<2>& rhs);
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T area (void) const;
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T diameter (void) const;
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bool empty (void) const;
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point<2> base (void) const;
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point<2> centre (void) const;
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bool includes (const point<2>&) const; // inclusive of borders
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bool contains (const point<2>&) const; // exclusive of borders
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bool overlaps (const region<T>&) const; // exclusive of borders
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region overlap (const region<T>&) const;
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bool operator ==(const region<T>& rhs) const;
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bool operator !=(const region<T>& rhs) const
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{ return !(*this == rhs); }
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void sanity (void) const;
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};
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}
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template <typename T>
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std::ostream&
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operator<< (std::ostream&, const util::region<T>&);
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#endif
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