Added mac and ios location services implementation to platform

1 files changed, 72 insertions, 0 deletions

diff --git a/platform/location.hpp b/platform/location.hpp
new file mode 100644
index 0000000000..c9cf3d148a
--- /dev/null
+++ b/platform/location.hpp
@@ -0,0 +1,72 @@
+#pragma once
+
+#include "../std/string.hpp"
+#include "../std/vector.hpp"
+
+#include <boost/function.hpp>
+
+namespace location
+{
+  enum TLocationStatus
+  {
+    ENotSupported,    //!< GpsInfo fields are not valid with this value
+    EDisabledByUser,  //!< GpsInfo fields are not valid with this value
+    EAccurateMode,
+    ERoughMode        //!< in this mode compass is turned off
+  };
+
+  /// @note always check m_status before using this structure
+  struct GpsInfo
+  {
+    TLocationStatus m_status;
+    double m_timestamp;           //!< seconds from 01/01/1970
+    double m_latitude;            //!< degrees  @TODO mercator
+    double m_longitude;           //!< degrees  @TODO mercator
+    double m_horizontalAccuracy;  //!< metres
+    double m_altitude;            //!< metres
+    double m_verticalAccuracy;    //!< metres
+    double m_course;              //!< positive degrees from the true North
+    double m_speed;               //!< metres per second
+  };
+
+  struct CompassInfo
+  {
+    double m_timestamp;           //!< seconds from 01/01/1970
+    double m_magneticHeading;     //!< positive degrees from the magnetic North
+    double m_trueHeading;         //!< positive degrees from the true North
+    double m_accuracy;            //!< offset from magnetic to true North
+    int m_x;
+    int m_y;
+    int m_z;
+  };
+
+  typedef boost::function1<void, GpsInfo const &> TGpsCallback;
+  typedef boost::function1<void, CompassInfo const &> TCompassCallback;
+
+  class LocationService
+  {
+    typedef vector<TGpsCallback> GpsObserversT;
+    GpsObserversT m_gpsObservers;
+    typedef vector<TCompassCallback> CompassObserversT;
+    CompassObserversT m_compassObservers;
+
+  protected:
+    void NotifySubscribers(GpsInfo const & info);
+    void NotifySubscribers(CompassInfo const & info);
+
+  public:
+    /// @note unsubscribe doesn't work with boost::function
+    void SubscribeToGpsUpdates(TGpsCallback observer);
+    void SubscribeToCompassUpdates(TCompassCallback observer);
+//    void Unsubscribe(TGpsCallback observer);
+//    void Unsubscribe(TCompassCallback observer);
+
+    /// to change active accuracy mode just call it again
+    /// @param useAccurateMode if true also enables compass if it's available
+    virtual void StartUpdate(bool useAccurateMode) = 0;
+    virtual void StopUpdate() = 0;
+  };
+
+}
+
+extern "C" location::LocationService & GetLocationService();