/****************************************************************************
**
** This file is part of the LibreCAD project, a 2D CAD program
**
** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
**
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file gpl-2.0.txt included in the
** packaging of this file.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
**
** This copyright notice MUST APPEAR in all copies of the script!
**
**********************************************************************/


#ifndef RS_POLYLINE_H
#define RS_POLYLINE_H

#include <memory>
#include "rs_entity.h"
#include "rs_entitycontainer.h"



/**
 * Holds the data that defines a polyline.
 */
struct RS_PolylineData : public RS_Flags {
    RS_PolylineData() = default;
	RS_PolylineData(const RS_Vector& startpoint,
                    const RS_Vector& endpoint,
					bool closed);

    RS_Vector startpoint;
    RS_Vector endpoint;
};

std::ostream& operator << (std::ostream& os, const RS_PolylineData& pd);

/**
 * Class for a poly line entity (lots of connected lines and arcs).
 *
 * @author Andrew Mustun
 */
class RS_Polyline : public RS_EntityContainer {
public:
	RS_Polyline(RS_EntityContainer* parent=nullptr);
    RS_Polyline(RS_EntityContainer* parent,
                const RS_PolylineData& d);

	RS_Entity* clone() const override;

    /**	@return RS2::EntityPolyline */
	RS2::EntityType rtti() const  override{
        return RS2::EntityPolyline;
    }

    /** @return Copy of data that defines the polyline. */
    RS_PolylineData getData() const {
        return data;
    }

    /** sets a new start point of the polyline */
	void setStartpoint(RS_Vector const& v);

    /** @return Start point of the entity */
	RS_Vector getStartpoint() const override;

    /** sets a new end point of the polyline */
	void setEndpoint(RS_Vector const& v);

    // set layer for polyline and sub-entities
    void setLayer(const QString& name);
    void setLayer(RS_Layer* l);

    /** @return End point of the entity */
	RS_Vector getEndpoint() const override;

	double getClosingBulge() const;

	void updateEndpoints();

    /** @return true if the polyline is closed. false otherwise */
	bool isClosed() const;

	void setClosed(bool cl);

    void setClosed(bool cl, double bulge);//RLZ: rewrite this:

	RS_VectorSolutions getRefPoints() const override;
	RS_Vector getMiddlePoint(void)const override{
            return RS_Vector(false);
	}
	RS_Vector getNearestRef( const RS_Vector& coord,
									 double* dist = nullptr) const override;
	RS_Vector getNearestSelectedRef( const RS_Vector& coord,
											 double* dist = nullptr) const override;
	RS_Entity* addVertex(const RS_Vector& v,
                double bulge=0.0, bool prepend=false);

	void appendVertexs(const std::vector< std::pair<RS_Vector, double> >& vl);

	void setNextBulge(double bulge) {
                nextBulge = bulge;
        }
	void addEntity(RS_Entity* entity) override;
	//void addSegment(RS_Entity* entity) override;
	void removeLastVertex();
	void endPolyline();

	//void reorder() override;

	bool offset(const RS_Vector& coord, const double& distance) override;
	void move(const RS_Vector& offset) override;
	void rotate(const RS_Vector& center, const double& angle) override;
	void rotate(const RS_Vector& center, const RS_Vector& angleVector) override;
	void scale(const RS_Vector& center, const RS_Vector& factor) override;
	void mirror(const RS_Vector& axisPoint1, const RS_Vector& axisPoint2) override;
	void stretch(const RS_Vector& firstCorner,
                         const RS_Vector& secondCorner,
						 const RS_Vector& offset) override;

	void moveRef(const RS_Vector& ref, const RS_Vector& offset) override;
	void revertDirection() override;


	void draw(RS_Painter* painter, RS_GraphicView* view,
					  double& patternOffset) override;

    friend std::ostream& operator << (std::ostream& os, const RS_Polyline& l);

protected:
    std::unique_ptr<RS_Entity> createVertex(const RS_Vector& v,
                double bulge=0.0, bool prepend=false);

protected:
    RS_PolylineData data;
    RS_Entity* closingEntity = nullptr;
    double nextBulge = 0.;
};

#endif
