EllipseShape.h

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/* This file is part of the KDE project
   SPDX-FileCopyrightText: 2006-2007 Thorsten Zachmann <zachmann@kde.org>
   SPDX-FileCopyrightText: 2006 Jan Hambrecht <jaham@gmx.net>
 
   SPDX-License-Identifier: LGPL-2.0-or-later
*/
 
#ifndef KOELLIPSESHAPE_H
#define KOELLIPSESHAPE_H
 
#include "KoParameterShape.h"
#include <SvgShape.h>
 
#define EllipseShapeId "EllipseShape"
 
class EllipseShape : public KoParameterShape, public SvgShape
{
public:
    enum EllipseType {
        Arc = 0,   
        Pie = 1,   
        Chord = 2  
    };
 
    EllipseShape();
    ~EllipseShape() override;
 
    KoShape* cloneShape() const override;
 
    void setSize(const QSizeF &newSize) override;
    QPointF normalize() override;
 
    void setType(EllipseType type);
 
    EllipseType type() const;
 
    void setStartAngle(qreal angle);
 
    qreal startAngle() const;
 
    void setEndAngle(qreal angle);
 
    qreal endAngle() const;
 
    QString pathShapeId() const override;
 
    bool saveSvg(SvgSavingContext &context) override;
 
    bool loadSvg(const QDomElement &element, SvgLoadingContext &context) override;
 
protected:
 
    void moveHandleAction(int handleId, const QPointF &point, Qt::KeyboardModifiers modifiers = Qt::NoModifier) override;
    void updatePath(const QSizeF &size) override;
    void createPoints(int requiredPointCount);
 
private:
    qreal sweepAngle() const;
 
    void updateKindHandle();
    void updateAngleHandles();
 
    EllipseShape(const EllipseShape &rhs);
 
    // start angle in degree
    qreal m_startAngle;
    // end angle in degree
    qreal m_endAngle;
    // angle for modifying the kind in radiant
    qreal m_kindAngle;
    // the center of the ellipse
    QPointF m_center;
    // the radii of the ellipse
    QPointF m_radii;
    // the actual ellipse type
    EllipseType m_type;
};
 
#endif /* KOELLIPSESHAPE_H */