qt5base-lts/examples/opengl/legacy/hellogl/glwidget.h

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#ifndef GLWIDGET_H
#define GLWIDGET_H

#include <QGLWidget>
#include <QOpenGLFunctions_1_1>

class QtLogo;

//! [0]
class GLWidget : public QGLWidget, public QOpenGLFunctions_1_1
{
    Q_OBJECT

public:
    GLWidget(QWidget *parent = 0);
    ~GLWidget();

    QSize minimumSizeHint() const Q_DECL_OVERRIDE;
    QSize sizeHint() const Q_DECL_OVERRIDE;
//! [0]

//! [1]
public slots:
    void setXRotation(int angle);
    void setYRotation(int angle);
    void setZRotation(int angle);

signals:
    void xRotationChanged(int angle);
    void yRotationChanged(int angle);
    void zRotationChanged(int angle);
//! [1]

//! [2]
protected:
    void initializeGL() Q_DECL_OVERRIDE;
    void paintGL() Q_DECL_OVERRIDE;
    void resizeGL(int width, int height) Q_DECL_OVERRIDE;
    void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
    void mouseMoveEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
//! [2]

//! [3]
private:
    QtLogo *logo;
    int xRot;
    int yRot;
    int zRot;
    QPoint lastPos;
    QColor qtGreen;
    QColor qtPurple;
};
//! [3]

#endif