From 3c634e71c76c31a3e8074f2d4772c1c6e1811208 Mon Sep 17 00:00:00 2001
From: Alex Zolotarev <deathbaba@gmail.com>
Date: Thu, 21 Apr 2011 14:24:39 +0200
Subject: Added mac and ios location services implementation to platform

---
 platform/location.hpp | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 platform/location.hpp

(limited to 'platform/location.hpp')

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();
-- 
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