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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 <cstdint>
#include <atomic>
#include <iosfwd>
#include <string>
#include <unordered_map>
#include <future>
namespace mbgl {
class FileSource;
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 : public std::enable_shared_from_this<Sprite>, private util::noncopyable {
private:
struct Key {};
void load(FileSource& fileSource);
public:
Sprite(const Key &, const std::string& base_url, float pixelRatio);
static util::ptr<Sprite> Create(const std::string& base_url, float pixelRatio, FileSource& fileSource);
const SpritePosition &getSpritePosition(const std::string& name) const;
void waitUntilLoaded() const;
bool isLoaded() const;
operator bool() const;
private:
const bool valid;
public:
const float pixelRatio;
const std::string spriteURL;
const std::string jsonURL;
std::unique_ptr<util::Image> raster;
private:
void parseJSON();
void parseImage();
void complete();
private:
std::string body;
std::string image;
std::atomic<bool> loadedImage;
std::atomic<bool> loadedJSON;
std::unordered_map<std::string, SpritePosition> pos;
const SpritePosition empty;
std::promise<void> promise;
std::future<void> future;
};
}
#endif
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