ubuntu-location-service  0.0.2
coordinate.h
1 /*
2  * Copyright © 2012-2013 Canonical Ltd.
3  *
4  * This program is free software: you can redistribute it and/or modify it
5  * under the terms of the GNU Lesser General Public License version 3,
6  * as published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU Lesser General Public License for more details.
12  *
13  * You should have received a copy of the GNU Lesser General Public License
14  * along with this program. If not, see <http://www.gnu.org/licenses/>.
15  *
16  * Authored by: Thomas Voß <thomas.voss@canonical.com>
17  */
18 #ifndef LOCATION_SERVICE_COM_UBUNTU_LOCATION_WGS84_COORDINATE_H_
19 #define LOCATION_SERVICE_COM_UBUNTU_LOCATION_WGS84_COORDINATE_H_
20 
21 #include "com/ubuntu/location/units/units.h"
22 
23 #include <ostream>
24 
25 namespace com
26 {
27 namespace ubuntu
28 {
29 namespace location
30 {
31 namespace wgs84
32 {
33 template<typename Coordinate>
35 {
36  static void check_and_throw_if_invalid(const typename Coordinate::Quantity& coordinate)
37  {
38  }
39 };
40 
41 template<typename Tag, typename UnitType>
42 struct Coordinate
43 {
44  typedef UnitType Unit;
45  typedef units::Quantity<Unit> Quantity;
46 
47  explicit Coordinate(const Quantity& value = Quantity()) : value(value)
48  {
49  CoordinateTraits<Coordinate<Tag,UnitType>>::check_and_throw_if_invalid(value);
50  }
51 
52  bool operator==(const Coordinate<Tag,UnitType>& rhs) const
53  {
54  return value == rhs.value;
55  }
56 
57  bool operator!=(const Coordinate<Tag,UnitType>& rhs) const
58  {
59  return value != rhs.value;
60  }
61 
62  Quantity value;
63 };
64 
65 template<typename T, typename U>
66 Coordinate<T,U> operator-(const Coordinate<T,U>& lhs, const Coordinate<T,U>& rhs)
67 {
68  return Coordinate<T,U> {rhs.value - lhs.value};
69 }
70 
71 template<typename T, typename U>
72 std::ostream& operator<<(std::ostream& out, const Coordinate<T,U>& coord)
73 {
74  out << "Coordinate(" << coord.value << ")";
75  return out;
76 }
77 }
78 }
79 }
80 }
81 #endif // LOCATION_SERVICE_COM_UBUNTU_LOCATION_WGS84_COORDINATE_H_