QwtErrorPlotCurve.h

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/***************************************************************************
    File                 : QwtErrorPlotCurve.h
    Project              : SciDAVis
    --------------------------------------------------------------------
    Copyright            : (C) 2006 by Ion Vasilief, Tilman Benkert
    Email (use @ for *)  : ion_vasilief*yahoo.fr, thzs*gmx.net
    Description          : Error bars curve

 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *  This program is free software; you can redistribute it and/or modify   *
 *  it under the terms of the GNU General Public License as published by   *
 *  the Free Software Foundation; either version 2 of the License, or      *
 *  (at your option) any later version.                                    *
 *                                                                         *
 *  This program 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 General Public License for more details.                           *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the Free Software           *
 *   Foundation, Inc., 51 Franklin Street, Fifth Floor,                    *
 *   Boston, MA  02110-1301  USA                                           *
 *                                                                         *
 ***************************************************************************/
#ifndef ERRORBARS_H
#define ERRORBARS_H

#include "PlotCurve.h"
#include <qwt_plot.h>

class QwtErrorPlotCurve: public DataCurve
{
public:
    enum Orientation{Horizontal = 0, Vertical = 1};

    QwtErrorPlotCurve(int orientation, Table *t, const char *name);
    QwtErrorPlotCurve(Table *t, const char *name);

    void copy(const QwtErrorPlotCurve *e);

    QwtDoubleRect boundingRect() const;

    double errorValue(int i);
    QwtArray<double> errors(){return err;};
    void setErrors(const QwtArray<double>&data){err=data;};

    int capLength(){return cap;};
    void setCapLength(int t){cap=t;};

    int width(){return pen().width ();};
    void setWidth(int w);

    QColor color(){return pen().color();};
    void setColor(const QColor& c);

    int direction(){return type;};
    void setDirection(int o){type = o;};

    bool xErrors();
    void setXErrors(bool yes);

    bool throughSymbol(){return through;};
    void drawThroughSymbol(bool yes){through=yes;};

    bool plusSide(){return plus;};
    void drawPlusSide(bool yes){plus=yes;};

    bool minusSide(){return minus;};
    void drawMinusSide(bool yes){minus=yes;};

    DataCurve* masterCurve(){return d_master_curve;};
    void setMasterCurve(DataCurve *c);

    void detachFromMasterCurve(){d_master_curve->removeErrorBars(this);};

    QString plotAssociation();

    bool updateData(Table *t, const QString& colName);
    virtual bool loadData();

private:
    virtual void draw(QPainter *painter,const QwtScaleMap &xMap,
        const QwtScaleMap &yMap, int from, int to) const;

    void drawErrorBars(QPainter *painter, const QwtScaleMap &xMap,
        const QwtScaleMap &yMap, int from, int to) const;

    QwtArray<double> err;

    int type;

    int cap;

    bool plus, minus, through;

    DataCurve *d_master_curve;
};

#endif