#ifndef VIEWPORTWIDGET_H
#define VIEWPORTWIDGET_H

#include <QOpenGLWidget>
#include <QOpenGLFunctions>
#include <QMatrix4x4>
#include <QPoint>

class ViewportWidget : public QOpenGLWidget, protected QOpenGLFunctions
{
    Q_OBJECT

public:
    explicit ViewportWidget(QWidget *parent = nullptr);

protected:
    void initializeGL() override;
    void paintGL() override;
    void resizeGL(int w, int h) override;

    void mousePressEvent(QMouseEvent *event) override;
    void mouseMoveEvent(QMouseEvent *event) override;
    void wheelEvent(QWheelEvent *event) override;

private:
    void drawCube();
    void drawViewCube();
    void drawAxes();

    QMatrix4x4 projection;

    float xRot = 0;
    float yRot = 0;
    float zoom = -5.0f;
    float panX = 0;
    float panY = 0;
    QPoint lastPos;
};

#endif // VIEWPORTWIDGET_H