citra/src/citra_qt/configuration/configure_camera.h

// Copyright 2018 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.

#pragma once

#include "core/frontend/camera/factory.h"
#include "core/frontend/camera/interface.h"

namespace Ui {
class ConfigureCamera;
}

class ConfigureCamera : public QWidget {
    Q_OBJECT

public:
    explicit ConfigureCamera(QWidget* parent = nullptr);
    ~ConfigureCamera() override;

    void applyConfiguration();
    void retranslateUi();

    void timerEvent(QTimerEvent*) override;

public slots:
    /// recordConfig() and updateUiDisplay()
    void setConfiguration();
    void onToolButtonClicked();

private:
    enum class CameraPosition { RearRight, Front, RearLeft, RearBoth, Null };
    static const std::array<std::string, 3> Implementations;
    /// Record the current configuration
    void recordConfig();
    /// Updates camera mode
    void updateCameraMode();
    /// Updates image source
    void updateImageSourceUI();
    void startPreviewing();
    void stopPreviewing();
    void connectEvents();
    CameraPosition getCameraSelection();
    int getSelectedCameraIndex();

private:
    std::unique_ptr<Ui::ConfigureCamera> ui;
    std::array<std::string, 3> camera_name;
    std::array<std::string, 3> camera_config;
    std::array<int, 3> camera_flip;
    int timer_id = 0;
    int preview_width = 0;
    int preview_height = 0;
    CameraPosition current_selected = CameraPosition::Front;
    bool is_previewing = false;
    std::unique_ptr<Camera::CameraInterface> previewing_camera;
};