valentina/widgets/vcontrolpointspline.h

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/****************************************************************************
**
** Copyright (C) 2013 Valentina project All Rights Reserved.
**
** This file is part of Valentina.
**
** Tox 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, either version 3 of the License, or
** (at your option) any later version.
**
** Tox 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 Valentina. If not, see <http://www.gnu.org/licenses/>.
**
****************************************************************************/
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#ifndef VCONTROLPOINTSPLINE_H
#define VCONTROLPOINTSPLINE_H
#include <QGraphicsEllipseItem>
#include <QGraphicsLineItem>
#include <QObject>
#include "options.h"
#include "geometry/vsplinepath.h"
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class VControlPointSpline : public QObject, public QGraphicsEllipseItem
{
Q_OBJECT
public:
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VControlPointSpline(const qint32 &indexSpline, SplinePoint::Position position,
const QPointF &controlPoint, const QPointF &splinePoint,
QGraphicsItem * parent = 0);
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signals:
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void ControlPointChangePosition(const qint32 &indexSpline, SplinePoint::Position position,
const QPointF pos);
public slots:
void RefreshLine(const qint32 &indexSpline, SplinePoint::Position pos,
const QPointF &controlPoint, const QPointF &splinePoint);
void setEnabledPoint(bool enable);
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protected:
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qreal radius;
QGraphicsLineItem *controlLine;
virtual void hoverMoveEvent ( QGraphicsSceneHoverEvent * event );
virtual void hoverLeaveEvent ( QGraphicsSceneHoverEvent * event );
QVariant itemChange ( GraphicsItemChange change, const QVariant &value );
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private:
Q_DISABLE_COPY(VControlPointSpline)
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qint32 indexSpline;
SplinePoint::Position position;
qint32 LineIntersectCircle(QPointF center, qreal radius, QLineF line, QPointF &p1,
QPointF &p2) const;
QPointF ClosestPoint(QLineF line, QPointF p) const;
QPointF addVector (QPointF p, QPointF p1, QPointF p2, qreal k) const;
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};
#endif // VCONTROLPOINTSPLINE_H