FeatherPlot.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
//#                        National Radio Astronomy Observatory
//#                        520 Edgemont Road
//#                        Charlottesville, VA 22903-2475 USA
//#

#ifndef FEATHERPLOT_H_
#define FEATHERPLOT_H_

#include <QList>
#include <qwt_plot.h>
#include <qwt_legend.h>

class QwtPlotCurve;
class QGridLayout;

namespace casa {

class ExternalAxisControlBottom;
class ExternalAxisControlRight;
class ExternalAxisControlLeft;
class ExternalAxisControl;
class ExternalAxis;
class FeatherCurve;

class FeatherPlot : public QwtPlot {

friend class ExternalAxisControlBottom;
friend class ExternalAxisControlRight;
friend class ExternalAxisControlLeft;

public:
        FeatherPlot(QWidget* parent );
        enum PlotType { SLICE_CUT, SCATTER_PLOT, NO_TYPE };
        virtual ~FeatherPlot();
        void clearCurves();
        void clearLegend();
        void resetLegend();

        void addCurve( QVector<double> xValues, QVector<double> yValues,
                        QColor curveColor, const QString& curveTitle, QwtPlot::Axis yAxis, bool sumCurve );
        void addAxisTitle( QwtPlot::Axis axis, const QString& title );
        void addDiagonal( QVector<double> xValues, QColor lineColor, QwtPlot::Axis yAxis );
        void initializePlot( const QString& title, PlotType plotType );

        //Preferences
        void setFunctionColor( const QString& curveID, const QColor& color );
        void setLineThickness( int thickness );
        void setDotSize( int dotSize );
        void setLegendVisibility( bool visible );
        bool setLogScale( bool uvScale, bool ampScale );

        //Legend
        void insertSingleLegend( QWidget* parent );
        QWidget* getExternalAxisControl( QwtPlot::Axis position );

        //Accessors
        FeatherPlot::PlotType getPlotType() const;
        bool isLogUV() const;
        bool isLogAmplitude() const;
        bool isEmpty() const;
        bool isScatterPlot() const;
        bool isSliceCut() const;


        static const QString Y_EQUALS_X;

private:
        void setCurvePenColor( int curveIndex, const QColor& color );
        int getCurveIndex( const QString& curveTitle ) const;
        void setCurveSize( int curveIndex );
        void updateAxes();
        void updateAxis( int index );
        void setAxisLabels();
        void adjustPlotBounds( std::pair<double,double> curveBounds, QwtPlot::Axis yAxis );
        void resetPlotBounds();
        void setLegendSize();
        void initAxes( );
        void setCurveData( FeatherCurve* curve, QwtPlot::Axis yAxis );

        QwtLegend* externalLegend;
        QWidget* legendParent;
        PlotType plotType;

        int lineThickness;
        int dotSize;
        bool scaleLogAmplitude;
        bool scaleLogUV;

        const int AXIS_COUNT;
        const int MINIMUM_LEGEND_LINE_WIDTH;

    QList<FeatherCurve*> curves;

    //External axis drawing support
    QList<QString> axisTitles;
    QList<QString> axisLabels;
    QList<ExternalAxisControl*> axisWidgets;
    QList<ExternalAxis*> axisBlanks;

    double minX;
    double maxX;
    double minY;
    double maxY;
    double minYRight;
    double maxYRight;
};

} /* namespace casa */
#endif /* FEATHERPLOT_H_ */