Plot.h

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

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

/***************************************************************************
 *                                                                         *
 *  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 PLOT_H
#define PLOT_H

#include <QObject>
#include <QMap>

#include <qwt_plot.h>
#include <qwt_plot_curve.h>
#include <qwt_plot_grid.h>
#include <qwt_plot_marker.h>

class Grid;

class Plot: public QwtPlot
{
    Q_OBJECT

    friend class Graph; // part of axes gaps workaround

public:
    Plot(QWidget *parent = 0, const char *name = 0);

    enum LabelFormat{Automatic, Decimal, Scientific, Superscripts};

    Grid *grid(){return (Grid *)d_grid;};
    QList<int> curveKeys(){return d_curves.keys();};
    QList<QwtPlotItem *> curvesList(){return d_curves.values();};
    
    int insertCurve(QwtPlotItem *c);
    void removeCurve(int index);

    int closestCurve(int xpos, int ypos, int &dist, int &point);
    QwtPlotCurve* curve(int index);
    QwtPlotItem* plotItem(int index){return d_curves.value(index);};
    QMap<int, QwtPlotItem*> curves(){return d_curves;};

    QwtPlotMarker* marker(int index){return d_markers.value(index);};
    QList<int> markerKeys(){return d_markers.keys();};
    int insertMarker(QwtPlotMarker *m);
    void removeMarker(int index);

    QList<int> getMajorTicksType();
    void setMajorTicksType(int axis, int type);

    QList<int> getMinorTicksType();
    void setMinorTicksType(int axis, int type);

    int minorTickLength() const;
    int majorTickLength() const;
    void setTickLength (int minLength, int majLength);

    int axesLinewidth() const;
    void setAxesLinewidth(int width);

    void setAxisLabelFormat(int axis, char f, int prec);
    void axisLabelFormat(int axis, char &f, int &prec) const;

    int axisLabelFormat(int axis);
    int axisLabelPrecision(int axis);

    void printFrame(QPainter *painter, const QRect &rect) const;

    QColor frameColor();
    const QColor & paletteBackgroundColor() const;

    void print(QPainter *, const QRect &rect, const QwtPlotPrintFilter & = QwtPlotPrintFilter());
    void updateLayout();

protected:
    void printCanvas(QPainter *painter, const QRect &canvasRect,
             const QwtScaleMap map[axisCnt], const QwtPlotPrintFilter &pfilter) const;

    virtual void drawItems (QPainter *painter, const QRect &rect,
            const QwtScaleMap map[axisCnt], const QwtPlotPrintFilter &pfilter) const;

    void drawInwardTicks(QPainter *painter, const QRect &rect,
                            const QwtScaleMap&map, int axis, bool min, bool maj) const;
    Grid *d_grid;
    QMap<int, QwtPlotItem*> d_curves;
    QMap<int, QwtPlotMarker*> d_markers;

    int minTickLength, majTickLength;
    int marker_key;
    int curve_key;
};
#endif