QtPlotSettings.h

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//# Copyright (C) 2005
//# Associated Universities, Inc. Washington DC, USA.
//#
//# 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; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//#        Internet email: aips2-request@nrao.edu.
//#        Postal address: AIPS++ Project Office
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#ifndef QTPLOTSETTINGS_H
#define QTPLOTSETTINGS_H

#include <cmath>
#include <QString>
#include <utility>              /***for std::pair***/

using namespace std;
 
namespace casa { 

class QtPlotSettings
{
public:
    QtPlotSettings();
    void adjust( const QString& topUnits, const QString& bottomUnits, bool autoScaleX, bool autoScaleY );
    void zoomOut( double zoomFactor, const QString& topUnits, const QString& bottomUnits,
                bool autoScaleX, bool autoScaleY );
    void zoomIn( double zoomFactor, const QString& topUnits, const QString& bottomUnits,
                bool autoScaleX, bool autoScaleY );
    void zoomY( double minY, double maxY, bool autoScaleY );
    pair<double,double> getZoomInY( double zoomFactor ) const;
    pair<double,double> getZoomOutY( double zoomFactor ) const;

    void scroll(int dx, int dy);
    enum AxisIndex {xBottom, xTop, END_AXIS_INDEX };
    double spanX( AxisIndex index ) const {
        return maxX[static_cast<int>(index)] - minX[static_cast<int>(index)];
    }
    double spanY() const { return maxY - minY; }
    double getMinX( AxisIndex index ) const {
        return minX[static_cast<int>(index)];
    }
    void setMinX( AxisIndex index, double value );
    double getMaxX( AxisIndex index ) const {
        return maxX[static_cast<int>(index)];
    }
    void setMaxX( AxisIndex index, double value );
    double getMinY() const {
        return minY;
    }

    void setMinY( double value );
    double getMaxY() const {
        return maxY;
    }

    void setMaxY( double value );
    int getNumTicksX( ) const {
        return numXTicks;
    }
    int getNumTicksY() const {
        return numYTicks;
    }



private:

    void adjustAxis(double &min, double &max, int &numTicks);
    void adjustAxisTop( double &min, double &max, const QString& topUnits,
                const QString& bottomUnits );
    double minX[END_AXIS_INDEX];
    double maxX[END_AXIS_INDEX];
    int numXTicks;
    double minY;
    double maxY;
    double minPercentage;
    double maxPercentage;
    double originalMinX;
    double originalMaxX;
    int numYTicks;
};


}
#endif