PolygonTool2D.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:
 *   Licensees holding valid commercial licenses may use this file in
 *   accordance with the commercial license agreement provided with the
 *   software or, alternatively, in accordance with the terms contained in
 *   a written agreement between you and MLAB or NICR.
 *
 * GNU General Public License Usage:
 *   Alternatively, this file may be used under the terms of the GNU
 *   General Public License version 3.0 as published by the Free Software
 *   Foundation and appearing in the file LICENSE.GPL3 included in the
 *   packaging of this file. Please review the following information to
 *   ensure the GNU General Public License version 3.0 requirements will be
 *   met: http://www.gnu.org/copyleft/gpl.html.
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 *   MLAB and NICR (or its successors, if any).
 *
 * IN NO EVENT SHALL "MLAB" OR "NICR" BE LIABLE TO ANY PARTY FOR DIRECT,
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 */

#ifndef _MIRA_POLYGONTOOL2D_H_
#define _MIRA_POLYGONTOOL2D_H_

#include <visualization/VisualizationTool2D.h>

#include <QGraphicsPolygonItem>
#include <geometry/Polygon.h>

namespace mira {


class PathPointItem : public QAbstractGraphicsShapeItem
{
public:
    PathPointItem(qreal radius = 2.0, QGraphicsItem* parent = NULL);
    virtual ~PathPointItem();

    virtual QRectF boundingRect() const;

protected: // Override these to customize the look of the handle
    virtual void paint(QPainter* painter, const QStyleOptionGraphicsItem*, QWidget*);

    const qreal RADIUS;
};


class MIRA_GUI_VISUALIZATION_EXPORT PolygonTool2D : public VisualizationTool2D
{
    MIRA_META_OBJECT(PolygonTool2D,
            ("Name", "Polygon")
            ("Category", "Interact")
            ("Description", "Define a polygon in the 2D view")
            ("Default", "false")
            ("Order", "400"))

public:
    PolygonTool2D();
    virtual ~PolygonTool2D();

    template<typename Reflector> void reflect(Reflector& r) {
        MIRA_REFLECT_BASE(r, VisualizationTool2D);
    }

    Polygon2f polygon() const;
    QPen pen() const;
    QBrush brush() const;

    void setPen(QPen pen);
    void setBrush(QBrush brush);

public:
    virtual void onMousePressed(QMouseEvent* e);
    virtual void onMouseReleased(QMouseEvent* e);

    virtual void activate();
    virtual void deactivate();
    virtual void reset();

    virtual QIcon getIcon();

protected:
    virtual void init(IVisualizationSite* site);
    virtual QGraphicsItem* setupScene(QGraphicsScene* mgr);

protected:
    virtual void onNewPolygon(const Polygon2f& polygon) {};

protected:
    void updatePenAndBrush();

    QGraphicsItemGroup* mItem;
    QGraphicsPolygonItem* mPolygonItem;
    QVector<PathPointItem*> mPointItems;

    QPen mPen;
    QBrush mBrush;

    QVector<QPointF> mPathPoints;
};


}

#endif