KD Chart 2: KDChartZoomParameters.h Source File

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# KDChartZoomParameters.h

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    00001 /* -*- Mode: C++ -*-
    00002    KDChart - a multi-platform charting engine
    00003    */
    00004
    00005 /****************************************************************************
    00006  ** Copyright (C) 2005-2007 Klarälvdalens Datakonsult AB.  All rights reserved.
    00007  **
    00008  ** This file is part of the KD Chart library.
    00009  **
    00010  ** This file may be distributed and/or modified under the terms of the
    00011  ** GNU General Public License version 2 as published by the Free Software
    00012  ** Foundation and appearing in the file LICENSE.GPL included in the
    00013  ** packaging of this file.
    00014  **
    00015  ** Licensees holding valid commercial KD Chart licenses may use this file in
    00016  ** accordance with the KD Chart Commercial License Agreement provided with
    00017  ** the Software.
    00018  **
    00019  ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    00020  ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    00021  **
    00022  ** See http://www.kdab.net/kdchart for
    00023  **   information about KD Chart Commercial License Agreements.
    00024  **
    00025  ** Contact info@kdab.net if any conditions of this
    00026  ** licensing are not clear to you.
    00027  **
    00028  **********************************************************************/
    00029
    00030 #ifndef ZOOMPARAMETERS_H
    00031 #define ZOOMPARAMETERS_H
    00032
    00033 //
    00034 //  W A R N I N G
    00035 //  -------------
    00036 //
    00037 // This file is not part of the KD Chart API.  It exists purely as an
    00038 // implementation detail.  This header file may change from version to
    00039 // version without notice, or even be removed.
    00040 //
    00041 // We mean it.
    00042 //
    00043
    00044 namespace KDChart {
    00049     class ZoomParameters {
    00050     public:
    00051         ZoomParameters()
    00052         : xFactor( 1.0 ),
    00053           yFactor( 1.0 ),
    00054           xCenter( 0.5 ),
    00055           yCenter( 0.5)
    00056         {
    00057         }
    00058
    00059         ZoomParameters( double xFactor, double yFactor, const QPointF& center )
    00060         : xFactor( xFactor ),
    00061           yFactor( yFactor ),
    00062           xCenter( center.x() ),
    00063           yCenter( center.y() )
    00064         {
    00065         }
    00066
    00067         void setCenter( const QPointF& center )
    00068         {
    00069             xCenter = center.x();
    00070             yCenter = center.y();
    00071         }
    00072         const QPointF center() const
    00073         {
    00074             return QPointF( xCenter, yCenter );
    00075         }
    00076
    00077         double xFactor;
    00078         double yFactor;
    00079
    00080         double xCenter;
    00081         double yCenter;
    00082     };
    00083 }
    00084
    00085 #endif