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#ifndef MBGL_STYLE_SPRITE
#define MBGL_STYLE_SPRITE
#include <mbgl/util/image.hpp>
#include <mbgl/util/noncopyable.hpp>
#include <mbgl/util/ptr.hpp>
#include <mbgl/storage/request.hpp>
#include <cstdint>
#include <atomic>
#include <iosfwd>
#include <string>
#include <unordered_map>
namespace mbgl {
class Environment;
class Request;
class SpritePosition {
public:
explicit SpritePosition() {}
explicit SpritePosition(uint16_t x, uint16_t y, uint16_t width, uint16_t height, float pixelRatio, bool sdf);
operator bool() const {
return !(width == 0 && height == 0 && x == 0 && y == 0);
}
uint16_t x = 0, y = 0;
uint16_t width = 0, height = 0;
float pixelRatio = 1.0f;
bool sdf = false;
};
class Sprite : private util::noncopyable {
public:
class Observer {
public:
virtual ~Observer() = default;
virtual void onSpriteLoaded() = 0;
};
Sprite(const std::string& baseUrl, float pixelRatio);
~Sprite();
const SpritePosition &getSpritePosition(const std::string& name) const;
bool hasPixelRatio(float ratio) const;
bool isLoaded() const;
const float pixelRatio;
std::unique_ptr<util::Image> raster;
void setObserver(Observer* observer);
private:
void emitSpriteLoadedIfComplete();
void parseJSON();
void parseImage();
std::string body;
std::string image;
std::atomic<bool> loadedImage;
std::atomic<bool> loadedJSON;
std::unordered_map<std::string, SpritePosition> pos;
const SpritePosition empty;
Environment& env;
Request* jsonRequest = nullptr;
Request* spriteRequest = nullptr;
Observer* observer = nullptr;
};
}
#endif
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