F.E.I.S/src/widgets/linear_view.hpp

#pragma once

#include <SFML/Graphics.hpp>
#include <cmath>
#include <filesystem>

#include "../chart_state.hpp"
#include "../time_selection.hpp"
#include "../toolbox.hpp"

class LinearView {
public:
    LinearView(std::filesystem::path assets);

    sf::RenderTexture view;

    void update(
        const std::optional<ChartState>& chart,
        const sf::Time& playbackPosition,
        const float& ticksAtPlaybackPosition,
        const float& BPM,
        const int& resolution,
        const ImVec2& size);

    void setZoom(int zoom);
    void zoom_in() { setZoom(zoom + 1); };
    void zoom_out() { setZoom(zoom - 1); };
    float timeFactor() { return std::pow(1.25f, static_cast<float>(zoom)); };

    bool shouldDisplaySettings;

    void displaySettings();

private:
    sf::Font beat_number_font;
    sf::RectangleShape cursor;
    sf::RectangleShape selection;
    sf::RectangleShape note_rect;
    sf::RectangleShape long_note_rect;
    sf::RectangleShape long_note_collision_zone;
    sf::RectangleShape note_selected;
    sf::RectangleShape note_collision_zone;

    float last_BPM = 120.0f;
    int last_resolution = 240;
    bool shouldReloadTransforms;

    AffineTransform<float> SecondsToTicks;
    AffineTransform<float> SecondsToTicksProportional;
    AffineTransform<float> PixelsToSeconds;
    AffineTransform<float> PixelsToSecondsProprotional;
    AffineTransform<float> PixelsToTicks;

    void resize(unsigned int width, unsigned int height);

    void reloadTransforms(
        const sf::Time& playbackPosition,
        const float& ticksAtPlaybackPosition,
        const float& BPM,
        const int& resolution);

    int zoom = 0;
    const std::filesystem::path font_path;
};