libcruft-util/extent.hpp

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/*
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* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
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*
* Copyright 2010-2015 Danny Robson <danny@nerdcruft.net>
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*/
#ifndef __UTIL_EXTENT_HPP
#define __UTIL_EXTENT_HPP
#include "coord.hpp"
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#include "vector.hpp"
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#include <iostream>
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namespace util {
/**
* A pure two-dimensional size, without positioning
*/
template <size_t S, typename T>
struct extent : public coord::base<S,T,extent,coord::whd>
{
using coord::base<S,T,util::extent,coord::whd>::base;
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extent () = default;
extent (vector<S,T>);
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T area (void) const;
T diameter (void) const;
template <typename U = float>
U aspect (void) const;
extent expanded (vector<S,T>) const;
extent expanded (T) const;
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extent contracted (vector<S,T>) const;
extent contracted (T) const;
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bool empty (void) const;
static const extent MAX;
static const extent MIN;
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};
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// convenience typedefs
template <typename T> using extent2 = extent<2,T>;
template <typename T> using extent3 = extent<3,T>;
typedef extent2<intmax_t> extent2i;
typedef extent2<size_t> extent2u;
typedef extent2<float> extent2f;
typedef extent2<double> extent2d;
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typedef extent3<size_t> extent3u;
typedef extent3<float> extent3f;
template <size_t S, typename T>
std::ostream& operator<< (std::ostream&, util::extent<S,T>);
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}
#include "extent.ipp"
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#endif