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/* This file is part of the KDE project
Copyright (C) 2001 Andrea Rizzi <rizzi@kde.org>
Ulrich Kuettler <ulrich.kuettler@mailbox.tu-dresden.de>
Copyright (C) 2006 Martin Pfeiffer <hubipete@gmx.net>
Copyright (C) 2006-2007 Alfredo Beaumont Sainz <alfredo.beaumont@gmail.com>
2009 Jeremias Epperlein <jeeree@web.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef ROOTELEMENT_H
#define ROOTELEMENT_H
#include "BasicElement.h"
#include "FixedElement.h"
#include "koformula_export.h"
#include <QPainterPath>
/**
* @short Implementation of the MathML mroot and msqrt elements
*/
class KOFORMULA_EXPORT RootElement : public FixedElement {
public:
/// The standard constructor
explicit RootElement(BasicElement *parent = 0);
/// The standard destructor
~RootElement() override;
/**
* Obtain a list of all child elements of this element
* @return a QList with pointers to all child elements
*/
const QList<BasicElement*> childElements() const override;
// QList<BasicElement*> elementsBetween(int pos1, int pos2) const;
/// inherited from BasicElement
bool replaceChild ( BasicElement* oldelement, BasicElement* newelement ) override;
/**
* Render the element to the given QPainter
* @param painter The QPainter to paint the element to
* @param am The AttributeManager providing information about attributes values
*/
void paint( QPainter& painter, AttributeManager* am ) override;
/**
* Calculate the size of the element and the positions of its children
* @param am The AttributeManager providing information about attributes values
*/
void layout( const AttributeManager* am ) override;
/// inherited from BasicElement
bool setCursorTo(FormulaCursor& cursor, QPointF point) override;
/// inherited from BasicElement
bool moveCursor(FormulaCursor& newcursor, FormulaCursor& oldcursor) override;
// virtual QLineF cursorLine(int position) const;
/// inherited from BasicElement
// virtual int positionOfChild(BasicElement* child) const;
/// @return The element's ElementType
ElementType elementType() const override;
/// @return The element's length
int endPosition() const override;
protected:
///update the selection in cursor so that a proper range is selected
// void fixSelection (FormulaCursor& cursor);
/// Read root contents - reimplemented from BasicElement
bool readMathMLContent( const KoXmlElement& element ) override;
/// Write root contents - reimplemented from BasicElement
void writeMathMLContent( KoXmlWriter* writer, const QString& ns ) const override;
private:
/// The element that is the radicand of the root
RowElement* m_radicand;
/// The element that is the exponent of the root
RowElement* m_exponent;
/// The point the artwork relates to.
QPointF m_rootOffset;
/// The QPainterPath that holds the lines for the root sign
QPainterPath m_rootSymbol;
/// Line thickness, in pixels
qreal m_lineThickness;
};
#endif // ROOTELEMENT_H
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