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/*
* Copyright (C) 2015-2018 Département de l'Instruction Publique (DIP-SEM)
*
* Copyright (C) 2013 Open Education Foundation
*
* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
* l'Education Numérique en Afrique (GIP ENA)
*
* This file is part of OpenBoard.
*
* OpenBoard is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3 of the License,
* with a specific linking exception for the OpenSSL project's
* "OpenSSL" library (or with modified versions of it that use the
* same license as the "OpenSSL" library).
*
* OpenBoard 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 OpenBoard. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef UBGRAPHICSSTROKE_H_
#define UBGRAPHICSSTROKE_H_
#include <QtGui>
#include "core/UB.h"
class UBGraphicsPolygonItem;
class UBGraphicsScene;
class UBGraphicsStroke
{
friend class UBGraphicsPolygonItem;
public:
UBGraphicsStroke(UBGraphicsScene* scene = NULL);
virtual ~UBGraphicsStroke();
bool hasPressure();
QList<UBGraphicsPolygonItem*> polygons() const;
void remove(UBGraphicsPolygonItem* polygonItem);
UBGraphicsStroke *deepCopy();
bool hasAlpha() const;
void clear();
QList<QPair<QPointF, qreal> > addPoint(const QPointF& point, qreal width, bool interpolate = false);
const QList<QPair<QPointF, qreal> >& points() { return mDrawnPoints; }
UBGraphicsStroke* simplify();
protected:
void addPolygon(UBGraphicsPolygonItem* pol);
private:
UBGraphicsScene * mScene;
QList<UBGraphicsPolygonItem*> mPolygons;
/// Points that were drawn by the user (i.e, actually received through input device)
QList<QPair<QPointF, qreal> > mReceivedPoints;
/// All the points (including interpolated) that are used to draw the stroke
QList<QPair<QPointF, qreal> > mDrawnPoints;
qreal mAntiScaleRatio;
};
#endif /* UBGRAPHICSSTROKE_H_ */