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/*
* Copyright © Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 2 or 3,
* as published by the Free Software Foundation.
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef WLCS_GEOMETRY_POINT_H_
#define WLCS_GEOMETRY_POINT_H_
#include "forward.h"
#include "dimensions.h"
#include <ostream>
namespace wlcs
{
namespace generic
{
template<typename T>
struct Size;
template<typename T>
struct Displacement;
template<typename T>
struct Point
{
using ValueType = T;
constexpr Point() = default;
constexpr Point(Point const&) = default;
Point& operator=(Point const&) = default;
template<typename U>
explicit constexpr Point(Point<U> const& other) noexcept
: x{X<T>{other.x}},
y{Y<T>{other.y}}
{
}
template<typename XType, typename YType>
constexpr Point(XType&& x, YType&& y) : x(x), y(y) {}
X<T> x;
Y<T> y;
};
template<typename T>
inline constexpr bool operator == (Point<T> const& lhs, Point<T> const& rhs)
{
return lhs.x == rhs.x && lhs.y == rhs.y;
}
template<typename T>
inline constexpr bool operator != (Point<T> const& lhs, Point<T> const& rhs)
{
return lhs.x != rhs.x || lhs.y != rhs.y;
}
template<typename T>
inline constexpr Point<T> operator+(Point<T> lhs, DeltaX<T> rhs) { return{lhs.x + rhs, lhs.y}; }
template<typename T>
inline constexpr Point<T> operator+(Point<T> lhs, DeltaY<T> rhs) { return{lhs.x, lhs.y + rhs}; }
template<typename T>
inline constexpr Point<T> operator-(Point<T> lhs, DeltaX<T> rhs) { return{lhs.x - rhs, lhs.y}; }
template<typename T>
inline constexpr Point<T> operator-(Point<T> lhs, DeltaY<T> rhs) { return{lhs.x, lhs.y - rhs}; }
template<typename T>
inline Point<T>& operator+=(Point<T>& lhs, DeltaX<T> rhs) { lhs.x += rhs; return lhs; }
template<typename T>
inline Point<T>& operator+=(Point<T>& lhs, DeltaY<T> rhs) { lhs.y += rhs; return lhs; }
template<typename T>
inline Point<T>& operator-=(Point<T>& lhs, DeltaX<T> rhs) { lhs.x -= rhs; return lhs; }
template<typename T>
inline Point<T>& operator-=(Point<T>& lhs, DeltaY<T> rhs) { lhs.y -= rhs; return lhs; }
template<typename T>
std::ostream& operator<<(std::ostream& out, Point<T> const& value)
{
out << value.x << ", " << value.y;
return out;
}
}
}
#endif // WLCS_GEOMETRY_POINT_H_
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