KDChartPrintingParameters.cpp

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/****************************************************************************
** Copyright (C) 2001-2010 Klaralvdalens Datakonsult AB.  All rights reserved.
**
** This file is part of the KD Chart library.
**
** Licensees holding valid commercial KD Chart licenses may use this file in
** accordance with the KD Chart Commercial License Agreement provided with
** the Software.
**
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 and version 3 as published by the
** Free Software Foundation and appearing in the file LICENSE.GPL included.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** Contact info@kdab.com if any conditions of this licensing are not
** clear to you.
**
**********************************************************************/

#include "KDChartPrintingParameters.h"

using namespace KDChart;

PrintingParameters::PrintingParameters()
    : scaleFactor( 1.0 )
{
}

PrintingParameters* PrintingParameters::instance()
{
    static PrintingParameters instance;
    return &instance;
}

void PrintingParameters::setScaleFactor( const qreal scaleFactor )
{
    instance()->scaleFactor = scaleFactor;
}

void PrintingParameters::resetScaleFactor()
{
    instance()->scaleFactor = 1.0;
}

QPen PrintingParameters::scalePen( const QPen& pen )
{
    if( instance()->scaleFactor == 1.0 )
        return pen;

    QPen resultPen = pen;
    resultPen.setWidthF( resultPen.widthF() * instance()->scaleFactor  );
    if( resultPen.widthF() == 0.0 )
        resultPen.setWidthF( instance()->scaleFactor );

    return resultPen;
}