/*
    Copyright (c) 2008-2022 Jan W. Krieger (<jan@jkrieger.de>)

    

    This software is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License (LGPL) as published by
    the Free Software Foundation, either version 2.1 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 Lesser General Public License (LGPL) for more details.

    You should have received a copy of the GNU Lesser General Public License (LGPL)
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef jkqtpgraphsspecialline_H
#define jkqtpgraphsspecialline_H


#include <QString>
#include <QPainter>
#include <QPair>
#include "jkqtplotter/jkqtptools.h"
#include "jkqtplotter/jkqtplotter_imexport.h"
#include "jkqtcommon/jkqtpdrawingtools.h"
#include "jkqtplotter/jkqtpgraphsbase.h"
#include "jkqtcommon/jkqtpenhancedpainter.h"
#include "jkqtplotter/jkqtpgraphsbaseerrors.h"
#include "jkqtplotter/graphs/jkqtprange.h"
#include "jkqtplotter/jkqtpgraphsbasestylingmixins.h"

// forward declarations
class JKQTBasePlotter;
class JKQTPlotter;
class JKQTPCoordinateAxis;
class JKQTPDatastore;
//class JKQTPColorPaletteStyleAndToolsMixin;




/** \brief a Base class for special line graphs (steps ...) like e.g. JKQTPSpecialLineHorizontalGraph
 *  \ingroup jkqtplotter_linesymbolgraphs_line
 *
 *  \image html stepplots.png
 *
 *  \see JKQTPSpecialLineHorizontalGraph, JKQTPSpecialLineVerticalGraph
 */
class JKQTPLOTTER_LIB_EXPORT JKQTPSpecialLineGraphBase: public JKQTPXYBaselineGraph, public JKQTPGraphLineAndFillStyleMixin, public JKQTPGraphSymbolStyleMixin, public JKQTPGraphLinesCompressionMixin {
    Q_OBJECT
public:
    /** \brief class constructor */
    explicit JKQTPSpecialLineGraphBase(JKQTBasePlotter* parent=nullptr);

    /** \brief returns the color to be used for the key label */
    virtual QColor getKeyLabelColor() const override;
    /** \brief plots a key marker inside the specified rectangle \a rect */
    virtual void drawKeyMarker(JKQTPEnhancedPainter& painter, const QRectF& rect) override;


    /** \copydoc m_drawSymbols */
    bool getDrawSymbols() const;
    /** \copydoc m_specialLineType */
    JKQTPSpecialLineType getSpecialLineType() const;

    Q_PROPERTY(bool drawSymbols READ getDrawSymbols WRITE setDrawSymbols)
    Q_PROPERTY(JKQTPSpecialLineType specialLineType READ getSpecialLineType WRITE setSpecialLineType)
public Q_SLOTS:
    /** \brief set line-color, fill color and symbol color */
    void setColor(QColor c);
    /** \copydoc m_drawSymbols */
    void setDrawSymbols(bool __value);
    /** \copydoc m_specialLineType */
    void setSpecialLineType(const JKQTPSpecialLineType & __value);
protected:

    /** \brief indicates whether to draw a symbols at the datapoints, or not */
    bool m_drawSymbols;
    /** \brief type of connecting (step)lines */
    JKQTPSpecialLineType m_specialLineType;


};


/** \brief This implements a step plot with values \f$ \left(x, f(x) \right) \f$
 *  \ingroup jkqtplotter_linesymbolgraphs_line
 *
 *  \image html stepplots.png
 *
 *  \see JKQTPSpecialLineVerticalGraph, \ref JKQTPlotterSpecialStepLinePlot
 */
class JKQTPLOTTER_LIB_EXPORT JKQTPSpecialLineHorizontalGraph: public JKQTPSpecialLineGraphBase {
    Q_OBJECT
public:
    /** \brief class constructor */
    JKQTPSpecialLineHorizontalGraph(JKQTBasePlotter* parent=nullptr);
    /** \brief class constructor */
    JKQTPSpecialLineHorizontalGraph(JKQTPlotter* parent);

    /** \brief plots the graph to the plotter object specified as parent */
    virtual void draw(JKQTPEnhancedPainter& painter) override;

protected:

};



/*! \brief This implements a step plot with values \f$ \left(f(y), y \right) \f$
    \ingroup jkqtplotter_linesymbolgraphs_line

    \image html stepplots_vertical.png

    \see JKQTPSpecialLineHorizontalGraph, \ref JKQTPlotterSpecialStepLinePlot
 */
class JKQTPLOTTER_LIB_EXPORT JKQTPSpecialLineVerticalGraph: public JKQTPSpecialLineGraphBase {
        Q_OBJECT
    public:
        /** \brief class constructor */
        JKQTPSpecialLineVerticalGraph(JKQTBasePlotter* parent=nullptr);
        /** \brief class constructor */
        JKQTPSpecialLineVerticalGraph(JKQTPlotter* parent);

        /** \brief plots the graph to the plotter object specified as parent */
        virtual void draw(JKQTPEnhancedPainter& painter) override;
        /** \brief returns the column used as "key" for the current graph (typically this call getXColumn(), but for horizontal graphs like filled curves or barcharts it may call getYColumn() ) */
        virtual int getKeyColumn() const override;
        /** \brief returns the column used as "value" for the current graph (typically this call getXColumn(), but for horizontal graphs like filled curves or barcharts it may call getYColumn() ) */
        virtual int getValueColumn() const override;
    public Q_SLOTS:
        /** \brief sets the column used as "key" for the current graph (typically this call setXColumn(), but for horizontal graphs like filled curves or barcharts it may call setYColumn() ) */
        virtual void setKeyColumn(int __value) override;
        /** \brief sets the column used as "value" for the current graph (typically this call setXColumn(), but for horizontal graphs like filled curves or barcharts it may call setYColumn() ) */
        virtual void setValueColumn(int __value) override;
};




#endif // jkqtpgraphsspecialline_H