[drape] replace FeatureFetcher by abstract data source

1 files changed, 30 insertions, 0 deletions

diff --git a/drape_frontend/map_data_provider.hpp b/drape_frontend/map_data_provider.hpp
new file mode 100644
index 0000000000..c9d8844ceb
--- /dev/null
+++ b/drape_frontend/map_data_provider.hpp
@@ -0,0 +1,30 @@
+#pragma once
+
+#include "../indexer/feature.hpp"
+
+#include "../geometry/rect2d.hpp"
+
+#include "../std/function.hpp"
+
+namespace df
+{
+
+class MapDataProvider
+{
+public:
+  typedef function<void (FeatureID const &)> TReadIdCallback;
+  typedef function<void (FeatureType const &)> TReadFeatureCallback;
+  typedef function<void (TReadFeatureCallback const & , vector<FeatureID> const &)> TReadFeaturesFn;
+  typedef function<void (TReadIdCallback const & , m2::RectD const &, int)> TReadIDsFn;
+
+  MapDataProvider(TReadIDsFn const & idsReader, TReadFeaturesFn const & featureReader);
+
+  void ReadFeaturesID(TReadIdCallback const & fn, m2::RectD const & r, int scale) const;
+  void ReadFeatures(TReadFeatureCallback const & fn, vector<FeatureID> const & ids) const;
+
+private:
+  TReadFeaturesFn m_featureReader;
+  TReadIDsFn m_idsReader;
+};
+
+}