Proces url for coordinates and viewport.

1 files changed, 104 insertions, 0 deletions

diff --git a/map/geourl_process.cpp b/map/geourl_process.cpp
new file mode 100644
index 0000000000..f22f490a87
--- /dev/null
+++ b/map/geourl_process.cpp
@@ -0,0 +1,104 @@
+#include "geourl_process.hpp"
+
+#include "../indexer/scales.hpp"
+#include "../indexer/mercator.hpp"
+
+#include "../base/string_utils.hpp"
+
+
+namespace url_scheme
+{
+  void Info::Reset()
+  {
+    m_lat = m_lon = EmptyValue();
+    m_zoom = scales::GetUpperScale();
+  }
+
+  m2::RectD Info::GetViewport() const
+  {
+    ASSERT ( IsValid(), () );
+
+    return scales::GetRectForLevel(m_zoom,
+                                   m2::PointD(MercatorBounds::LonToX(m_lon),
+                                              MercatorBounds::LatToY(m_lat)),
+                                   1.0);
+  }
+
+
+  class DoParse
+  {
+    Info & m_info;
+
+    enum TMode { START, LAT, LON, ZOOM, FINISH };
+    TMode m_mode;
+
+    static void ToDouble(string const & token, double & d)
+    {
+      double temp;
+      if (strings::to_double(token, temp))
+        d = temp;
+    }
+
+    bool CheckKeyword(string const & token)
+    {
+      if (token == "lat" || token == "point")
+        m_mode = LAT;
+      else if (token == "lon")
+        m_mode = LON;
+      else if (token == "zoom")
+        m_mode = ZOOM;
+      else
+        return false;
+
+      return true;
+    }
+
+  public:
+    DoParse(Info & info) : m_info(info), m_mode(START)
+    {
+    }
+
+    void operator()(string const & token)
+    {
+      switch (m_mode)
+      {
+      case START:
+        ASSERT(token == "geo" || token == "mapswithme", (token));
+        m_mode = LAT;
+        break;
+
+      case LAT:
+        if (!CheckKeyword(token))
+        {
+          ToDouble(token, m_info.m_lat);
+          m_mode = LON;
+        }
+        break;
+
+      case LON:
+        if (!CheckKeyword(token))
+        {
+          ToDouble(token, m_info.m_lon);
+          m_mode = ZOOM;
+        }
+        break;
+
+      case ZOOM:
+        if (!CheckKeyword(token))
+        {
+          ToDouble(token, m_info.m_zoom);
+          m_mode = FINISH;
+        }
+        break;
+
+      default:
+        break;
+      }
+    }
+  };
+
+  void ParseURL(string const & s, Info & info)
+  {
+    strings::Tokenize(s, ":/?&=,", DoParse(info));
+  }
+}