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#ifndef MBGL_STYLE_STYLE
#define MBGL_STYLE_STYLE
#include <mbgl/style/zoom_history.hpp>
#include <mbgl/source/source.hpp>
#include <mbgl/text/glyph_store.hpp>
#include <mbgl/sprite/sprite_store.hpp>
#include <mbgl/util/noncopyable.hpp>
#include <mbgl/util/chrono.hpp>
#include <mbgl/util/worker.hpp>
#include <mbgl/util/optional.hpp>
#include <cstdint>
#include <string>
#include <vector>
namespace mbgl {
class MapData;
class FileSource;
class GlyphAtlas;
class GlyphStore;
class SpriteStore;
class SpriteAtlas;
class LineAtlas;
class StyleLayer;
class TransformState;
class Tile;
class Bucket;
namespace gl { class TexturePool; }
struct RenderItem {
inline RenderItem(const StyleLayer& layer_,
const Tile* tile_ = nullptr,
Bucket* bucket_ = nullptr)
: tile(tile_), bucket(bucket_), layer(layer_) {
}
const Tile* const tile;
Bucket* const bucket;
const StyleLayer& layer;
};
struct RenderData {
Color backgroundColor = {{ 0, 0, 0, 0 }};
std::set<Source*> sources;
std::vector<RenderItem> order;
};
class Style : public GlyphStore::Observer,
public SpriteStore::Observer,
public Source::Observer,
public util::noncopyable {
public:
Style(MapData&, FileSource&);
~Style();
class Observer : public GlyphStore::Observer,
public SpriteStore::Observer,
public Source::Observer {
public:
/**
* In addition to the individual glyph, sprite, and source events, the
* following "rollup" events are provided for convenience. They are
* strictly additive; e.g. when a source is loaded, both `onSourceLoaded`
* and `onResourceLoaded` will be called.
*/
virtual void onResourceLoaded() {};
virtual void onResourceError(std::exception_ptr) {};
};
void setJSON(const std::string& data, const std::string& base);
void setObserver(Observer*);
bool isLoaded() const;
// Fetch the tiles needed by the current viewport and emit a signal when
// a tile is ready so observers can render the tile.
void update(const TransformState&, gl::TexturePool&);
void cascade();
void recalculate(float z);
bool hasTransitions() const;
std::exception_ptr getLastError() const {
return lastError;
}
Source* getSource(const std::string& id) const;
void addSource(std::unique_ptr<Source>);
std::vector<std::unique_ptr<StyleLayer>> getLayers() const;
StyleLayer* getLayer(const std::string& id) const;
void addLayer(std::unique_ptr<StyleLayer>,
optional<std::string> beforeLayerID = {});
void removeLayer(const std::string& layerID);
RenderData getRenderData() const;
void setSourceTileCacheSize(size_t);
void onLowMemory();
void dumpDebugLogs() const;
MapData& data;
FileSource& fileSource;
std::unique_ptr<GlyphStore> glyphStore;
std::unique_ptr<GlyphAtlas> glyphAtlas;
std::unique_ptr<SpriteStore> spriteStore;
std::unique_ptr<SpriteAtlas> spriteAtlas;
std::unique_ptr<LineAtlas> lineAtlas;
private:
std::vector<std::unique_ptr<Source>> sources;
std::vector<std::unique_ptr<StyleLayer>> layers;
std::vector<std::unique_ptr<StyleLayer>>::const_iterator findLayer(const std::string& layerID) const;
// GlyphStore::Observer implementation.
void onGlyphsLoaded(const std::string& fontStack, const GlyphRange&) override;
void onGlyphsError(const std::string& fontStack, const GlyphRange&, std::exception_ptr) override;
// SpriteStore::Observer implementation.
void onSpriteLoaded() override;
void onSpriteError(std::exception_ptr) override;
// Source::Observer implementation.
void onSourceLoaded(Source&) override;
void onSourceError(Source&, std::exception_ptr) override;
void onTileLoaded(Source&, const TileID&, bool isNewTile) override;
void onTileError(Source&, const TileID&, std::exception_ptr) override;
void onPlacementRedone() override;
bool shouldReparsePartialTiles = false;
Observer nullObserver;
Observer* observer = &nullObserver;
std::exception_ptr lastError;
ZoomHistory zoomHistory;
bool hasPendingTransitions = false;
public:
bool loaded = false;
Worker workers;
};
} // namespace mbgl
#endif
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