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/* This file is part of the KDE project
Copyright (C) 2007 Martin Pfeiffer <hubipete@gmx.net>
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.
*/
#include "SquareRootElement.h"
#include "AttributeManager.h"
#include "FormulaDebug.h"
#include <QPainter>
#include <QPen>
SquareRootElement::SquareRootElement( BasicElement* parent ) : RowElement( parent )
{
}
SquareRootElement::~SquareRootElement()
{
}
void SquareRootElement::paint( QPainter& painter, AttributeManager* am )
{
Q_UNUSED( am )
// BasicElement::paint(painter, am);
QPen pen;
pen.setWidth( m_lineThickness );
painter.setPen( pen );
painter.drawPath( m_rootSymbol );
}
void SquareRootElement::layout( const AttributeManager* am )
{
RowElement::layout( am );
qreal thinSpace = am->layoutSpacing( this );
qreal symbolHeight = baseLine();
if( height() > symbolHeight*1.3 ) symbolHeight = height();
symbolHeight += thinSpace;
qreal tickWidth = symbolHeight / 3.0;
m_lineThickness = am->lineThickness(this);
// Set the sqrt dimensions
QPointF childOffset( tickWidth + thinSpace, thinSpace + m_lineThickness );
setWidth( width() + childOffset.x());
setHeight( height() + childOffset.y());
setBaseLine( baseLine() + childOffset.y());
// Adapt the children's positions to the new offset
foreach( BasicElement* element, childElements() )
element->setOrigin( element->origin() + childOffset );
QRectF rect = childrenBoundingRect();
rect.translate(childOffset);
setChildrenBoundingRect(rect);
// Draw the sqrt symbol into a QPainterPath as buffer
m_rootSymbol = QPainterPath();
m_rootSymbol.moveTo( m_lineThickness, 2.0 * symbolHeight / 3.0 );
m_rootSymbol.lineTo( 0 + tickWidth/2.0, symbolHeight-m_lineThickness/2 );
m_rootSymbol.lineTo( 0 + tickWidth, m_lineThickness/2 );
m_rootSymbol.lineTo( width() - m_lineThickness/2, m_lineThickness/2 );
}
ElementType SquareRootElement::elementType() const
{
return SquareRoot;
}
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