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#pragma once
#include <string>
#include <SFML/System/Vector2.hpp>
#include <SFML/Graphics/Texture.hpp>
#include <memory>
#include <future>
namespace QuickMedia {
enum class LoadingState {
NOT_LOADED,
LOADING,
FINISHED_LOADING,
APPLIED_TO_TEXTURE
};
struct ThumbnailData {
bool referenced = false;
LoadingState loading_state = LoadingState::NOT_LOADED;
sf::Texture texture;
std::unique_ptr<sf::Image> image; // Set in another thread. This should be .reset after loading it into |texture|, to save memory
};
class AsyncImageLoader {
public:
// Returns false if the image loader is already loading an image. In that case, this function should be called again later.
// set |resize_target_size| to {0, 0} to disable resizing.
// |thumbnail_data.loading_state| has to be LoadingState::NOT_LOADED when calling this!
// Note: this method is not thread-safe
bool load_thumbnail(const std::string &url, bool local, sf::Vector2i resize_target_size, bool use_tor, std::shared_ptr<ThumbnailData> thumbnail_data);
void update();
private:
bool loading_image = false;
std::future<void> load_image_future;
};
}
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