File indexing completed on 2025-02-16 04:48:29

 /*
     SPDX-FileCopyrightText: 2018 Volker Krause <vkrause@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #ifndef WEATHERTILE_H
 #define WEATHERTILE_H
 
 #include <QMetaType>
 
 #include <cmath>
 #include <cstdint>
 #include <functional>
 
 /** Weather forecast data tile coordinates */
 struct WeatherTile
 {
     // tile size in 1/nth of a degree
     static const constexpr auto Size = 10.0;
 
     inline constexpr WeatherTile() = default;
     inline WeatherTile(float latitude, float longitude)
         : lat(int16_t(::round(latitude * WeatherTile::Size)))
         , lon(int16_t(::round(longitude * WeatherTile::Size)))
     {}
 
     inline bool operator<(WeatherTile other) const
     {
         return std::tie(lat, lon) < std::tie(other.lat, other.lon);
     }
 
     inline constexpr bool operator==(WeatherTile other) const
     {
         return lat == other.lat && lon == other.lon;
     }
 
     inline constexpr float latitude() const
     {
         return lat / Size;
     }
 
     inline constexpr float longitude() const
     {
         return lon / Size;
     }
 
     int16_t lat = 0;
     int16_t lon = 0;
 };
 
 Q_DECLARE_METATYPE(WeatherTile)
 
 namespace std
 {
     template<> struct hash<WeatherTile>
     {
         inline std::size_t operator()(const WeatherTile &t) const noexcept
         {
             return std::hash<uint32_t>{}(t.lat << 16 | t.lon);
         }
     };
 }
 
 #endif // WEATHERTILE_H