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#pragma once
#include <mbgl/tile/tile_id.hpp>
#include <mbgl/style/types.hpp>
#include <mbgl/util/geometry.hpp>
#include <mbgl/util/optional.hpp>
#include <vector>
#include <memory>
namespace mbgl {
class TransformState;
class LatLngBounds;
namespace util {
// Helper class to stream tile-cover results per row
class TileCover {
public:
TileCover(const LatLngBounds&, int32_t z);
// When project == true, projects the geometry points to tile coordinates
TileCover(const Geometry<double>&, int32_t z, bool project = true);
~TileCover();
optional<UnwrappedTileID> next();
bool hasNext();
private:
class Impl;
std::unique_ptr<Impl> impl;
};
int32_t coveringZoomLevel(double z, style::SourceType type, uint16_t tileSize);
std::vector<UnwrappedTileID> tileCover(const TransformState&, int32_t z);
std::vector<UnwrappedTileID> tileCover(const LatLngBounds&, int32_t z);
std::vector<UnwrappedTileID> tileCover(const Geometry<double>&, int32_t z);
// Compute only the count of tiles needed for tileCover
uint64_t tileCount(const LatLngBounds&, uint8_t z);
uint64_t tileCount(const Geometry<double>&, uint8_t z);
} // namespace util
} // namespace mbgl
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