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#ifndef MBGL_MAP_SOURCE
#define MBGL_MAP_SOURCE
#include <mbgl/map/tile_id.hpp>
#include <mbgl/map/tile_data.hpp>
#include <mbgl/map/tile_cache.hpp>
#include <mbgl/style/types.hpp>
#include <mbgl/util/noncopyable.hpp>
#include <mbgl/util/mat4.hpp>
#include <mbgl/util/ptr.hpp>
#include <mbgl/util/chrono.hpp>
#include <mbgl/util/constants.hpp>
#include <rapidjson/document.h>
#include <cstdint>
#include <forward_list>
#include <iosfwd>
#include <map>
#include <unordered_set>
namespace mbgl {
class StyleUpdateParameters;
class Painter;
class FileRequest;
class TransformState;
class Tile;
struct ClipID;
struct box;
class SourceInfo : private util::noncopyable {
public:
SourceType type = SourceType::Vector;
std::string url;
std::vector<std::string> tiles;
uint16_t tile_size = util::tileSize;
uint16_t min_zoom = 0;
uint16_t max_zoom = 22;
std::string attribution;
std::array<float, 3> center = {{0, 0, 0}};
std::array<float, 4> bounds = {{-180, -90, 180, 90}};
std::string source_id = "";
void parseTileJSONProperties(const rapidjson::Value&);
std::string tileURL(const TileID& id, float pixelRatio) const;
};
class Source : private util::noncopyable {
public:
class Observer {
public:
virtual ~Observer() = default;
virtual void onSourceLoaded() = 0;
virtual void onSourceLoadingFailed(std::exception_ptr error) = 0;
virtual void onTileLoaded(bool isNewTile) = 0;
virtual void onTileLoadingFailed(std::exception_ptr error) = 0;
};
Source();
~Source();
void load();
bool isLoaded() const;
// Request or parse all the tiles relevant for the "TransformState". This method
// will return true if all the tiles were scheduled for updating of false if
// they were not. shouldReparsePartialTiles must be set to "true" if there is
// new data available that a tile in the "partial" state might be interested at.
bool update(const StyleUpdateParameters&);
void updateMatrices(const mat4 &projMatrix, const TransformState &transform);
void drawClippingMasks(Painter &painter);
void finishRender(Painter &painter);
std::forward_list<Tile *> getLoadedTiles() const;
const std::vector<Tile*>& getTiles() const;
void setCacheSize(size_t);
void onLowMemory();
void setObserver(Observer* observer);
void dumpDebugLogs() const;
SourceInfo info;
bool enabled;
private:
void tileLoadingCompleteCallback(const TileID&, const TransformState&, bool collisionDebug);
void emitSourceLoaded();
void emitSourceLoadingFailed(const std::string& message);
void emitTileLoaded(bool isNewTile);
void emitTileLoadingFailed(const std::string& message);
bool handlePartialTile(const TileID &id, Worker &worker);
bool findLoadedChildren(const TileID& id, int32_t maxCoveringZoom, std::forward_list<TileID>& retain);
void findLoadedParent(const TileID& id, int32_t minCoveringZoom, std::forward_list<TileID>& retain);
int32_t coveringZoomLevel(const TransformState&) const;
std::forward_list<TileID> coveringTiles(const TransformState&) const;
TileData::State addTile(const TileID&, const StyleUpdateParameters&);
TileData::State hasTile(const TileID&);
void updateTilePtrs();
double getZoom(const TransformState &state) const;
bool loaded = false;
// Stores the time when this source was most recently updated.
TimePoint updated = TimePoint::min();
std::map<TileID, std::unique_ptr<Tile>> tiles;
std::vector<Tile*> tilePtrs;
std::map<TileID, std::weak_ptr<TileData>> tileDataMap;
TileCache cache;
std::unique_ptr<FileRequest> req;
Observer* observer_ = nullptr;
};
} // namespace mbgl
#endif
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