#ifndef VIEWCUBE_H
#define VIEWCUBE_H

#include <QOpenGLFunctions>
#include <QMatrix4x4>
#include <QOpenGLVertexArrayObject>
#include <QOpenGLBuffer>

class QOpenGLShaderProgram;
class QOpenGLTexture;

class ViewCube : protected QOpenGLFunctions
{
public:
    ViewCube();
    ~ViewCube();

    void initializeGL();
    void paintGL(QOpenGLShaderProgram* simpleShader, int simpleShaderColorLoc, const QMatrix4x4& viewMatrix, int width, int height);

private:
    void createFaceTextures();
    void initShaders();
    void setupBuffers();
    void drawViewCube(const QMatrix4x4& projection, const QMatrix4x4& view);
    void drawAxes(QOpenGLShaderProgram* simpleShader, int colorLoc, const QMatrix4x4& projection, const QMatrix4x4& view);

    QOpenGLTexture* m_faceTextures[6];

    QOpenGLShaderProgram* m_textureShaderProgram = nullptr;

    QOpenGLVertexArrayObject m_cubeVao;
    QOpenGLBuffer m_cubeVbo;

    QOpenGLVertexArrayObject m_axesVao;
    QOpenGLBuffer m_axesVbo;
};

#endif // VIEWCUBE_H