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#ifndef MBGL_MAP_VECTOR_TILE
#define MBGL_MAP_VECTOR_TILE
#include <mbgl/tile/geometry_tile.hpp>
#include <mbgl/map/tile_id.hpp>
#include <protozero/pbf_reader.hpp>
#include <map>
#include <unordered_map>
#include <functional>
namespace mbgl {
class VectorTileLayer;
using pbf_iter_type = protozero::pbf_reader::const_uint32_iterator;
using packed_iter_type = std::pair<pbf_iter_type,pbf_iter_type>;
class VectorTileFeature : public GeometryTileFeature {
public:
VectorTileFeature(protozero::pbf_reader, const VectorTileLayer&);
FeatureType getType() const override { return type; }
optional<Value> getValue(const std::string&) const override;
std::unordered_map<std::string,Value> getProperties() const override;
optional<uint64_t> getID() const override;
GeometryCollection getGeometries() const override;
uint32_t getExtent() const override;
private:
const VectorTileLayer& layer;
optional<uint64_t> id;
FeatureType type = FeatureType::Unknown;
packed_iter_type tags_iter;
packed_iter_type geometry_iter;
};
class VectorTileLayer : public GeometryTileLayer {
public:
VectorTileLayer(protozero::pbf_reader);
std::size_t featureCount() const override { return features.size(); }
util::ptr<const GeometryTileFeature> getFeature(std::size_t) const override;
std::string getName() const override;
private:
friend class VectorTile;
friend class VectorTileFeature;
std::string name;
uint32_t extent = 4096;
std::map<std::string, uint32_t> keysMap;
std::vector<std::reference_wrapper<const std::string>> keys;
std::vector<Value> values;
std::vector<protozero::pbf_reader> features;
};
class VectorTile : public GeometryTile {
public:
VectorTile(std::shared_ptr<const std::string> data);
util::ptr<GeometryTileLayer> getLayer(const std::string&) const override;
private:
std::shared_ptr<const std::string> data;
mutable bool parsed = false;
mutable std::map<std::string, util::ptr<GeometryTileLayer>> layers;
};
class TileID;
class FileSource;
class VectorTileMonitor : public GeometryTileMonitor {
public:
VectorTileMonitor(const TileID&, float pixelRatio, const std::string& urlTemplate, FileSource&);
std::unique_ptr<AsyncRequest> monitorTile(const GeometryTileMonitor::Callback&) override;
private:
TileID tileID;
float pixelRatio;
std::string urlTemplate;
FileSource& fileSource;
};
} // namespace mbgl
#endif
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