vertex.h

#pragma once

#ifndef VERTEX_H
#define VERTEX_H

#include <QVector3D>

class Vertex
{
public:
    // Constructors
    Q_DECL_CONSTEXPR Vertex();
    Q_DECL_CONSTEXPR explicit Vertex(const QVector3D &position);
    Q_DECL_CONSTEXPR Vertex(const QVector3D &position, const QVector3D &color);

    // Accessors / Mutators
    Q_DECL_CONSTEXPR const QVector3D& position() const;
    Q_DECL_CONSTEXPR const QVector3D& color() const;
    void setPosition(const QVector3D& position);
    void setColor(const QVector3D& color);

    // OpenGL Helpers
    static const int PositionTupleSize = 3;
    static const int ColorTupleSize = 3;
    static Q_DECL_CONSTEXPR int positionOffset();
    static Q_DECL_CONSTEXPR int colorOffset();
    static Q_DECL_CONSTEXPR int stride();

private:
    QVector3D m_position;
    QVector3D m_color;
};

/*******************************************************************************
 * Inline Implementation
 ******************************************************************************/

 // Note: Q_MOVABLE_TYPE means it can be memcpy'd.
Q_DECLARE_TYPEINFO(Vertex, Q_MOVABLE_TYPE);

// Constructors
Q_DECL_CONSTEXPR inline Vertex::Vertex() {}
Q_DECL_CONSTEXPR inline Vertex::Vertex(const QVector3D &position) : m_position(position) {}
Q_DECL_CONSTEXPR inline Vertex::Vertex(const QVector3D &position, const QVector3D &color) : m_position(position), m_color(color) {}

// Accessors / Mutators
Q_DECL_CONSTEXPR inline const QVector3D& Vertex::position() const { return m_position; }
Q_DECL_CONSTEXPR inline const QVector3D& Vertex::color() const { return m_color; }
void inline Vertex::setPosition(const QVector3D& position) { m_position = position; }
void inline Vertex::setColor(const QVector3D& color) { m_color = color; }

// OpenGL Helpers
Q_DECL_CONSTEXPR inline int Vertex::positionOffset() { return offsetof(Vertex, m_position); }
Q_DECL_CONSTEXPR inline int Vertex::colorOffset() { return offsetof(Vertex, m_color); }
Q_DECL_CONSTEXPR inline int Vertex::stride() { return sizeof(Vertex); }

#endif // VERTEX_H