/usr/include/mircommon/mir/geometry/displacement.h is in mircommon-dev 0.1.8+14.04.20140411-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 | /*
* Copyright © 2012 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 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/>.
*
* Authored by: Alexandros Frantzis <alexandros.frantzis@canonical.com>
*/
#ifndef MIR_GEOMETRY_DISPLACEMENT_H_
#define MIR_GEOMETRY_DISPLACEMENT_H_
#include "dimensions.h"
#include "point.h"
#include <iosfwd>
namespace mir
{
namespace geometry
{
struct Displacement
{
Displacement() {}
Displacement(Displacement const&) = default;
Displacement& operator=(Displacement const&) = default;
template<typename DeltaXType, typename DeltaYType>
Displacement(DeltaXType&& dx, DeltaYType&& dy) : dx{dx}, dy{dy} {}
float length_squared() const
{
return dx.as_float() * dx.as_float() + dy.as_float() * dy.as_float();
}
DeltaX dx;
DeltaY dy;
};
inline bool operator==(Displacement const& lhs, Displacement const& rhs)
{
return lhs.dx == rhs.dx && lhs.dy == rhs.dy;
}
inline bool operator!=(Displacement const& lhs, Displacement const& rhs)
{
return lhs.dx != rhs.dx || lhs.dy != rhs.dy;
}
std::ostream& operator<<(std::ostream& out, Displacement const& value);
inline Displacement operator+(Displacement const& lhs, Displacement const& rhs)
{
return Displacement{lhs.dx + rhs.dx, lhs.dy + rhs.dy};
}
inline Displacement operator-(Displacement const& lhs, Displacement const& rhs)
{
return Displacement{lhs.dx - rhs.dx, lhs.dy - rhs.dy};
}
inline Point operator+(Point const& lhs, Displacement const& rhs)
{
return Point{lhs.x + rhs.dx, lhs.y + rhs.dy};
}
inline Point operator-(Point const& lhs, Displacement const& rhs)
{
return Point{lhs.x - rhs.dx, lhs.y - rhs.dy};
}
inline Displacement operator-(Point const& lhs, Point const& rhs)
{
return Displacement{lhs.x - rhs.x, lhs.y - rhs.y};
}
inline bool operator<(Displacement const& lhs, Displacement const& rhs)
{
return lhs.length_squared() < rhs.length_squared();
}
}
}
#endif /* MIR_GEOMETRY_DISPLACEMENT_H_ */
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