pointcloud.h

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#ifndef POINTCLOUD_H
#define POINTCLOUD_H

#include "sceneobject.h"

#include <QOpenGLShaderProgram>
#include <QOpenGLShader>
#include <QOpenGLBuffer>
#include <QMatrix4x4>
#include <QVector>

namespace LangmuirView {

class PointCloud : public SceneObject
{
    Q_OBJECT
public:
    explicit PointCloud(LangmuirViewer &viewer, QObject *parent = 0);

    ~PointCloud();

    enum Mode {
        Points  =  1, 
        Squares =  2, 
        Cubes   =  3, 
    };
    Q_DECLARE_FLAGS(Modes, Mode)
    Q_FLAGS(Modes)

    const QColor& getColor() const;

    float getPointSize() const;

    Mode getMode() const;

public:
    QVector<float>& vertices();

    unsigned int getMaxPoints();

    unsigned int getMaxRender();

signals:
    void maxPointsChanged(unsigned int value);

    void maxRenderChanged(unsigned int value);

    void pointSizeChanged(float value);

    void colorChanged(QColor color);

    void modeChanged(PointCloud::Mode mode);

    void modeChanged(QString mode);

public slots:
    virtual void makeConnections();

    void setMaxPoints(unsigned int value);

    void setMaxRender(unsigned int value);

    void setPointSize(float value);

    void setColor(QColor color);

    void setMode(Mode mode);

    void updateVBO();

    static QString modeToQString(Mode mode);

    static Mode QStringToMode(QString string);

protected:
    virtual void init();

    virtual void draw();

    void initShaders();

    void drawFallback();

    void drawPoints();

    void drawSquares();

    void drawCubes();

    QOpenGLShaderProgram m_shader1;

    QOpenGLShaderProgram m_shader2;

    QOpenGLShaderProgram m_shader3;

    QOpenGLBuffer *m_verticesVBO;

    QVector<float> m_vertices;

    unsigned int m_maxPoints;

    unsigned int m_maxRender;

    float m_pointSize;

    QColor m_color;

    Mode m_mode;

    bool m_shader1OK;

    bool m_shader2OK;

    bool m_shader3OK;
};

}

Q_DECLARE_METATYPE(LangmuirView::PointCloud::Mode);

#endif // POINTCLOUD_H