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#pragma once
#include "Path.hpp"
#include <string>
#include <vector>
#include <mglpp/graphics/Texture.hpp>
#include <mglpp/graphics/Sprite.hpp>
#include <mglpp/graphics/Text.hpp>
#include <mglpp/system/Clock.hpp>
#include <thread>
#include <memory>
namespace mgl {
class Window;
}
namespace QuickMedia {
enum class ImageStatus {
WAITING,
LOADING,
FAILED_TO_LOAD,
LOADED,
APPLIED_TO_TEXTURE
};
struct ImageData {
mgl::Texture texture;
mgl::Sprite sprite;
ImageStatus image_status;
std::unique_ptr<mgl::Image> image;
bool visible_on_screen;
float prev_height = 0.0f;
};
struct PageSize {
mgl::vec2d size;
mgl::vec2d prev_size;
bool loaded;
};
enum class ImageViewerAction {
NONE,
RETURN,
SWITCH_TO_SINGLE_IMAGE_MODE
};
class ImageViewer {
public:
ImageViewer(mgl::Window *window, int num_pages, const std::string &content_title, const std::string &chapter_title, int current_page, const Path &chapter_cache_dir, bool *fit_image_to_window);
~ImageViewer();
ImageViewerAction draw();
// Returns page as 1 indexed
int get_focused_page() const;
int get_num_pages() const { return num_pages; }
private:
void load_image_async(const Path &path, std::shared_ptr<ImageData> image_data);
bool render_page(mgl::Window &window, int page, double offset_y);
mgl::vec2d get_page_size(int page);
private:
mgl::Window *window;
int current_page;
int num_pages;
int page_center;
std::string content_title;
std::string chapter_title;
Path chapter_cache_dir;
double scroll = 0.0;
double scroll_speed = 0.0;
double min_page_center_dist;
int page_closest_to_center;
int focused_page;
int prev_focused_page = -1;
mgl::Clock frame_timer;
mgl::Text page_text;
std::vector<std::shared_ptr<ImageData>> image_data;
std::vector<PageSize> page_size;
mgl::vec2d window_size;
bool window_size_set = false;
bool middle_mouse_scrolling = false;
double autoscroll_start_y = 0.0;
// TODO: Fix
//sf::Cursor default_cursor;
//sf::Cursor size_vertical_cursor;
bool has_default_cursor;
bool has_size_vertical_cursor;
bool up_pressed = false;
bool down_pressed = false;
std::thread image_loader_thread;
bool loading_image = false;
bool *fit_image_to_window;
};
}
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