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#ifndef MBGL_MAP_SOURCE
#define MBGL_MAP_SOURCE
#include <mbgl/map/tile.hpp>
#include <mbgl/map/tile_data.hpp>
#include <mbgl/style/style_source.hpp>
#include <mbgl/util/noncopyable.hpp>
#include <mbgl/util/mat4.hpp>
#include <mbgl/util/ptr.hpp>
#include <cstdint>
#include <forward_list>
#include <iosfwd>
#include <map>
#include <chrono>
namespace mbgl {
class Map;
class Environment;
class GlyphAtlas;
class GlyphStore;
class SpriteAtlas;
class Sprite;
class TexturePool;
class Style;
class Painter;
class StyleLayer;
class TransformState;
struct box;
class Source : public std::enable_shared_from_this<Source>, private util::noncopyable {
public:
Source(SourceInfo&);
void load(Map &, Environment &);
void update(Map &, Environment &, uv::worker &, util::ptr<Style>, GlyphAtlas &, GlyphStore &,
SpriteAtlas &, util::ptr<Sprite>, TexturePool &, std::function<void()> callback);
void updateMatrices(const mat4 &projMatrix, const TransformState &transform);
void drawClippingMasks(Painter &painter);
size_t getTileCount() const;
void render(Painter &painter, const StyleLayer &layer_desc);
void render(Painter &painter, const StyleLayer &layer_desc, const Tile::ID &id, const mat4 &matrix);
void finishRender(Painter &painter);
std::forward_list<Tile::ID> getIDs() const;
std::forward_list<Tile *> getLoadedTiles() const;
void updateClipIDs(const std::map<Tile::ID, ClipID> &mapping);
private:
bool findLoadedChildren(const Tile::ID& id, int32_t maxCoveringZoom, std::forward_list<Tile::ID>& retain);
bool findLoadedParent(const Tile::ID& id, int32_t minCoveringZoom, std::forward_list<Tile::ID>& retain);
int32_t coveringZoomLevel(const TransformState&) const;
std::forward_list<Tile::ID> coveringTiles(const TransformState&) const;
TileData::State addTile(Map &, Environment &, uv::worker &, util::ptr<Style>, GlyphAtlas &,
GlyphStore &, SpriteAtlas &, util::ptr<Sprite>, TexturePool &,
const Tile::ID &, std::function<void()> callback);
TileData::State hasTile(const Tile::ID& id);
double getZoom(const TransformState &state) const;
SourceInfo& info;
bool loaded = false;
// Stores the time when this source was most recently updated.
std::chrono::steady_clock::time_point updated = std::chrono::steady_clock::time_point::min();
std::map<Tile::ID, std::unique_ptr<Tile>> tiles;
std::map<Tile::ID, std::weak_ptr<TileData>> tile_data;
};
}
#endif
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