PointVectorObject.h

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/*
 * Copyright (C) 2014 by
 *   MetraLabs GmbH (MLAB), GERMANY
 * and
 *   Neuroinformatics and Cognitive Robotics Labs (NICR) at TU Ilmenau, GERMANY
 * All rights reserved.
 *
 * Contact: info@mira-project.org
 *
 * Commercial Usage:
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 *   accordance with the commercial license agreement provided with the
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 *   a written agreement between you and MLAB or NICR.
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 *   Foundation and appearing in the file LICENSE.GPL3 included in the
 *   packaging of this file. Please review the following information to
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#ifndef _MIRA_POINTVECTOROBJECT_H_
#define _MIRA_POINTVECTOROBJECT_H_

#include <visualization/GuiVisualizationExports.h>

#include <QAbstractGraphicsShapeItem>

#include <QVector>
#include <QPainter>
#include <QWidget>

#include <geometry/Point.h>

namespace mira {


// It would probably be a good idea to template this class to match the template params of mira::Point.
template <typename PointType>
class MIRA_GUI_VISUALIZATION_EXPORT PointVectorObject : public QAbstractGraphicsShapeItem
{
public:
    PointVectorObject(QGraphicsItem* parent = NULL);
    virtual ~PointVectorObject();

    // Using uncoloured data
    void setData(const std::vector<PointType>& data);

    // Using coloured data
    void setData(const std::vector<std::pair<PointType, QColor>>& data);

    void setWidth(qreal width);
    void setColor(const QColor& color);

    qreal width() const;
    QColor color() const;

    QRectF boundingRect() const;

protected:
    void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget = NULL);

protected:
    void addPoint(qreal x, qreal y, QColor color = QColor::Invalid);
    void updateColor();

    typedef QPair<QPointF, QColor> ColouredPoint;

    QVector<ColouredPoint> mData;
    QRectF mBoundingRect;
    QRectF mBoundingRectAdjusted;

    qreal mWidth;
    QColor mColor;
};


}

#endif