KDChartPrintingParameters.cpp

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00001 /****************************************************************************
00002 ** Copyright (C) 2001-2011 Klaralvdalens Datakonsult AB.  All rights reserved.
00003 **
00004 ** This file is part of the KD Chart library.
00005 **
00006 ** Licensees holding valid commercial KD Chart licenses may use this file in
00007 ** accordance with the KD Chart Commercial License Agreement provided with
00008 ** the Software.
00009 **
00010 **
00011 ** This file may be distributed and/or modified under the terms of the
00012 ** GNU General Public License version 2 and version 3 as published by the
00013 ** Free Software Foundation and appearing in the file LICENSE.GPL.txt included.
00014 **
00015 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00016 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00017 **
00018 ** Contact info@kdab.com if any conditions of this licensing are not
00019 ** clear to you.
00020 **
00021 **********************************************************************/
00022 
00023 #include "KDChartPrintingParameters.h"
00024 
00025 using namespace KDChart;
00026 
00027 PrintingParameters::PrintingParameters()
00028     : scaleFactor( 1.0 )
00029 {
00030 }
00031 
00032 PrintingParameters* PrintingParameters::instance()
00033 {
00034     static PrintingParameters instance;
00035     return &instance;
00036 }
00037 
00038 void PrintingParameters::setScaleFactor( const qreal scaleFactor )
00039 {
00040     instance()->scaleFactor = scaleFactor;
00041 }
00042 
00043 void PrintingParameters::resetScaleFactor()
00044 {
00045     instance()->scaleFactor = 1.0;
00046 }
00047 
00048 QPen PrintingParameters::scalePen( const QPen& pen )
00049 {
00050     if( instance()->scaleFactor == 1.0 )
00051         return pen;
00052 
00053     QPen resultPen = pen;
00054     resultPen.setWidthF( resultPen.widthF() * instance()->scaleFactor  );
00055     if( resultPen.widthF() == 0.0 )
00056         resultPen.setWidthF( instance()->scaleFactor );
00057 
00058     return resultPen;
00059 }
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