JKQtPlotter/lib/jkqtfastplotter/jkqtfastplotter.h

/*
    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 JKQTFASTPLOTTER_H
#define JKQTFASTPLOTTER_H

#include "jkqtfastplotter_imexport.h"
#include <QWidget>
#include <QVector>
#include <QSettings>
#include <QColor>
#include <QVector>
#include <QPair>
#include <QStringList>
#include <QIcon>
#include <cmath>
#include <iostream>
#include <QMutex>
#include <QPen>
#include <QPainter>
#include <QBrush>
#if (QT_VERSION>=QT_VERSION_CHECK(6, 0, 0))
#include <QtOpenGLWidgets/QOpenGLWidget>
#define JKQTFASTPLOTTER_BASE QOpenGLWidget
#else
#include <QGLWidget>
#define JKQTFASTPLOTTER_BASE QGLWidget
#endif
#include "jkqtcommon/jkqtpmathtools.h"
#ifdef DEBUG_TIMING
#  include "jkqtcommon/jkqtphighrestimer.h"
#endif


// forward declaration
class JKQTFPPlot;




/*! \brief a speed optimized plotter class
    \ingroup jkqtfastplotter

    This plotter class is (in contrast to JKQTPlotter) optimized for speed. It allows to plot function graphs/data in
    a simple manner. The focus of design was not on a nice output (athough this is not unimportant), but on the speed
    of the output. So the class may be used to di quick plotting of data, i.e. in fast image sequence applications.

    These measures were taken to increase speed:
      - The coordinate system is drawn onto an internal image which is only updated, when the size of the widget
        or a property of the coordinate system changes. When only the data changes, just the data plot has to be
        updated.
      - The class uses an internal buffer with the complete image, so a repaint does not always trigger a complete
        repaint of all elements, but just measns painting the internal image to the screen. This also allows to
        plot selections ... over the plot, without having to replot the plots.
      - The definition of the coordinate system as well as the definition the system ticks ... is reduced to the absolute
        minimum.
      - The method setPlotUpdateEnabled() allows to prevent replotting of the class contents, e.g. when you want to set
        a multitude of parameters without triggering a replot every time.
    .

    The class supports these features:
      - coordinate axes may be linear or logarithmic.
      - ticks and tick labels are drawn by a simple algorithm: The user has to supply two values:
        \c zeroTick is a tick value that exists in any case (i.e. 0) and \c tickDistance which contains the distance
        between two ticks (only applicable to linear axes). Then the class starts to draw at zeroTick and move on to
        \c zeroTick+tickDistance and \c zeroTick-tickDistance until \c min / \c max of the axis is reached. For logarithmic axes
        the class uses \c zeroTick*10 and \c zeroTick/10
      - plot may contain a grid (x and y grid may be switched on/off separately).
      - plots are represented by descendents of JKQTFPPlot and the plotting code is completely
        contained therein (and should be speed optimized).
      - it is possible to keep a specified aspect ratio
      - it is possible to couple different plots in a way, that they are plottetd with the same width/height
        both in pixel and world coordinates by using plotterSizesChanged() and synchronizeX() / synchronizeY().
    .

    \image html jkqtfastplotter_test.png

    \see An example for the usage of this class can be found here: \ref JKQTFastPlotterTest


*/
class JKQTFASTPLOTTER_LIB_EXPORT JKQTFastPlotter :
        #if (QT_VERSION>=QT_VERSION_CHECK(6, 0, 0))
        public QOpenGLWidget
        #else
        public QGLWidget
        #endif
{
        Q_OBJECT
    public:

        /*! \brief smallest allowed line width for JKQTFastPlotter
        */
        static const double ABS_MIN_LINEWIDTH;

        /*! \brief size of the lookup tables used by JKQTFPimagePlot_array2image()
        */
        static const size_t LUTSIZE;

    protected:
        /** \brief indicates whether to do full repaint (system and data) at the next repaint (any of the repaint meothods) */
        bool doFullRepaint;
        /** \brief this stores the currently displayed coordinate system */
        QImage systemImage;
        /** \brief this stores the currently displayed plot */
        QImage image;

        /** \brief this can be used when drawing a zoom rectangle to store an unchanged
         *         copy of the currently displayed image.
         */
        QImage oldImage;

        /** \brief if \c false the plotting won't be performed (may be used to set more than one parameter without replot */
        bool doDrawing;

        /** \brief list of plots in this graph */
        QVector<JKQTFPPlot*> plots;



        /** \brief free space between widget left border and plot left border  */
        int plotBorderLeft; 
        /*! \brief default value for property plotBorderLeft. 
            \see plotBorderLeft for more information */ 
        int default_plotBorderLeft;
        /** \brief free space between widget bottom border and plot bottom border  */
        int plotBorderBottom; 
        /*! \brief default value for property plotBorderBottom. 
            \see plotBorderBottom for more information */ 
        int default_plotBorderBottom;
        /** \brief free space between widget right border and plot left border */
        int plotBorderRight; 
        /*! \brief default value for property plotBorderRight. 
            \see plotBorderRight for more information */ 
        int default_plotBorderRight;
        /** \brief free space between widget top border and plot bottom border */
        int plotBorderTop; 
        /*! \brief default value for property plotBorderTop. 
            \see plotBorderTop for more information */ 
        int default_plotBorderTop;

        /** \brief internally calculated: free space between widget left border and plot left border
         *
         * \note This is the actual border used for plotting, as it may be different from what the user supplied.
         *       Note also that this is at least as huge as the suer supplied border value!
         */
        int internalPlotBorderLeft;
        /** \brief internally calculated: free space between widget bottom border and plot bottom border
         *
         * \note This is the actual border used for plotting, as it may be different from what the user supplied.
         *       Note also that this is at least as huge as the suer supplied border value!
         */
        int internalPlotBorderBottom;
        /** \brief internally calculated: free space between widget right border and plot left border
         *
         * \note This is the actual border used for plotting, as it may be different from what the user supplied.
         *       Note also that this is at least as huge as the suer supplied border value!
         */
        int internalPlotBorderRight;
        /** \brief internally calculated: free space between widget top border and plot bottom border
         *
         * \note This is the actual border used for plotting, as it may be different from what the user supplied.
         *       Note also that this is at least as huge as the suer supplied border value!
         */
        int internalPlotBorderTop;

        /** \brief plot width in pt inside the widget (calculated by calcPlotScaling() from plotBorderLeft, plotBorderRight and widgetWidth) */
        int plotWidth;
        /** \brief plot height in pt inside the widget (calculated by calcPlotScaling() from plotBorderTop, plotBorderBottom and widgetHeight) */
        int plotHeight;

        /** \brief color of the coordinate system */
        QColor systemColor; 
        /*! \brief default value for property systemColor. 
            \see systemColor for more information */ 
        QColor default_systemColor;
        /** \brief width of the coordinate (in pixel) */
        double systemWidth; 
        /*! \brief default value for property systemWidth. 
            \see systemWidth for more information */ 
        double default_systemWidth;
        /** \brief color of the background*/
        QColor backgroundColor; 
        /*! \brief default value for property backgroundColor. 
            \see backgroundColor for more information */ 
        QColor default_backgroundColor;
        /** \brief color of the plot's background
         *
         *  \note the background is not drawn if this color is set to \c QColor(Qt::transparent) !
         */
        QColor plotBackgroundColor; 
        /*! \brief default value for property plotBackgroundColor. 
            \see plotBackgroundColor for more information */ 
        QColor default_plotBackgroundColor;
        /** \brief indicates whether to draw a system box */
        bool drawSystemBox; 
        /*! \brief default value for property drawSystemBox. 
            \see drawSystemBox for more information */ 
        bool default_drawSystemBox;
        /** \brief indicates whether to draw axes at x=0/y=0 */
        bool drawZeroAxes; 
        /*! \brief default value for property drawZeroAxes. 
            \see drawZeroAxes for more information */ 
        bool default_drawZeroAxes;

        /** \brief indicates whether to draw a grid */
        bool drawGrid; 
        /*! \brief default value for property drawGrid. 
            \see drawGrid for more information */ 
        bool default_drawGrid;
        /** \brief color of the coordinate grid */
        QColor gridColor; 
        /*! \brief default value for property gridColor. 
            \see gridColor for more information */ 
        QColor default_gridColor;
        /** \brief style of the coordinate grid */
        Qt::PenStyle gridStyle; 
        /*! \brief default value for property gridStyle. 
            \see gridStyle for more information */ 
        Qt::PenStyle default_gridStyle;
        /** \brief width of the coordinate grid (in pixel) */
        double gridWidth; 
        /*! \brief default value for property gridWidth. 
            \see gridWidth for more information */ 
        double default_gridWidth;
        /** \brief font size (in points) of the axis labels */
        double labelFontSize; 
        /*! \brief default value for property labelFontSize. 
            \see labelFontSize for more information */ 
        double default_labelFontSize;
        /** \brief font name of the axis labels */
        QString labelFontName; 
        /*! \brief default value for property labelFontName. 
            \see labelFontName for more information */ 
        QString default_labelFontName;
        /** \brief font size (in points) of the tick labels */
        double tickFontSize; 
        /*! \brief default value for property tickFontSize. 
            \see tickFontSize for more information */ 
        double default_tickFontSize;
        /** \brief font name of the tick labels */
        QString tickFontName; 
        /*! \brief default value for property tickFontName. 
            \see tickFontName for more information */ 
        QString default_tickFontName;

        /** \brief length of an axis tick (pixels) */
        double tickLength; 
        /*! \brief default value for property tickLength. 
            \see tickLength for more information */ 
        double default_tickLength;


        /** \brief minimum value of x axis */
        double xMin;
        /** \brief maximum value of x axis */
        double xMax;
        /** \brief minimum value of y axis */
        double yMin;
        /** \brief maximum value of y axis */
        double yMax;
        /** \brief is x axis logarithmic? */
        bool xAxisLog;
        /** \brief is x axis logarithmic? */
        bool yAxisLog;

        /** \brief width of plot on x axis (calculated internally)  */
        double xWidth;
        /** \brief x axis scaling factor (calculated internally)  */
        double xScale;
        /** \brief x axis offset (calculated internally)  */
        double xOffset;
        /** \brief width of plot on y axis (calculated internally)  */
        double yWidth;
        /** \brief y axis scaling factor (calculated internally)  */
        double yScale;
        /** \brief y axis offset (calculated internally)  */
        double yOffset;
        /** \brief a label position from which axis label plotting is started for the x axis */
        double xZeroTick;
        /** \brief a label position from which axis label plotting is started for the y axis */
        double yZeroTick;
        /** \brief distance between two labels on x axis */
        double xTickDistance;
        /** \brief distance between two labels on y axis */
        double yTickDistance;
        /** \brief label of x axis */
        QString xAxisLabel;
        /** \brief label of y axis */
        QString yAxisLabel;

        /** \brief plot y axis label */
        bool yAxisLabelVisible;
        /** \brief plot x axis label */
        bool xAxisLabelVisible;

        /** \brief synchronize x-axis settings to this plotter */
        JKQTFastPlotter* synchronizeX;
        /** \brief synchronize y-axis settings to this plotter */
        JKQTFastPlotter* synchronizeY;

        /** \brief aspect ratio of the plot, only used when maintainAspectRation is \c true
         *
         * The aspect ratio is defined as \c width/height of the plot in pt.
         * So if you want to have a plot spanning \c x=0..20 and \c y=0..10 where each 1x1 square should be
         * as wide as high  you will have to set aspectRatio to \c 2 .
         *
         * \note Note that aspect ratios only make sense for linear-linear plots. This will be ignored
         *       if any one axis is logarithmic.
         */
        double aspectRatio;
        /** \brief indicates whether to maintain a specific aspect ratio */
        bool maintainAspectRatio;

        QPoint mouseDragStart;
        QPoint mouseDragEnd;
        bool dragging;

        QPen dragShapePen;
        bool dragLine;

        QAction* actCopyImage;

        /** \brief this simply paints the stored image to the widget's surface */
        virtual void paintEvent(QPaintEvent *event) override;

        /** \brief resizes the internal representation (image) of the graphs */
        virtual void resizeEvent(QResizeEvent *event) override;


        /** \brief event handler for a double click */
        virtual void mouseDoubleClickEvent ( QMouseEvent * event ) override;

        /** \brief event handler for a mouse move */
        virtual void mouseMoveEvent ( QMouseEvent * event ) override;

        /** \brief event handler for a mouse button press */
        virtual void mousePressEvent ( QMouseEvent * event ) override;

        /** \brief event handler for a mouse button is released */
        virtual void mouseReleaseEvent(QMouseEvent* event) override;

        /** \brief paint the coordinate system */
        void plotSystem(QPainter& painter);

        /** \brief paint the graphs */
        void plotGraphs(QPainter& painter);

        /** \brief recalculate the scaling of the plot */
        void calcPlotScaling();

        QSize minimumSizeHint() const override;

        /**  \brief mutex to lock global widget repaint */
        QMutex mutexRepaint;

        /**  \brief mutex to lock data repaint */
        QMutex mutexRepaintData;

        /**  \brief mutex to lock system repaint */
        QMutex mutexRepaintSystem;

    public:
        /** \brief class constructor */
        JKQTFastPlotter(QWidget *parent = nullptr);

        /** \brief set the properties of the x axis */
        void setXRange(double min, double max, bool logarithmic=false);

        /** \brief set the properties of the y axis */
        void setYRange(double min, double max, bool logarithmic=false);

        /** \brief set the properties of both axes */
        void setXYRange(double xmin, double xmax, double ymin, double ymax, bool xlogarithmic=false, bool ylogarithmic=false);

        /** \brief clear all plots in the graph
         *
         * \param remove if \c true the object will also be deleted from memory, not just from the list
         */
        void clearPlots(bool remove=false);
        /** \brief add a new graph */
        void addPlot(JKQTFPPlot* g);
        /** \brief return the internal number (0..N-1) of the given plot, or -1*/
        int getPlotNum(JKQTFPPlot* g);
        /** \brief remove given graph
         *
         * \param id specifies the graph to delete
         * \param remove if \c true the object will also be deleted from memory, not just from the list
         */
        void deletePlot(int id, bool remove=false);
        /** \brief remove given graph
         *
         * \param g specifies the graph to delete
         * \param remove if \c true the object will also be deleted from memory, not just from the list
         */
        void deletePlot(JKQTFPPlot* g, bool remove=false);


        /** \brief return x-pixel coordinate from x coordinate */
        inline double x2p(double x) {
            if (xAxisLog) {
                if (x<=0) return xOffset+log(xMin/10.0)/JKQTPSTATISTICS_LN10*xScale;
                return xOffset+log(x)/JKQTPSTATISTICS_LN10*xScale;
            } else {
                return xOffset+x*xScale;
            }
        }

        /** \brief return x coordinate coordinate from x-pixel */
        inline double p2x(long x) {
            if (xAxisLog) {
                return exp(JKQTPSTATISTICS_LN10*(static_cast<double>(x)-xOffset)/(xScale));
            } else {
                return (static_cast<double>(x)-xOffset)/(xScale);
            }
        }

        /** \brief return y-pixel coordinate from y coordinate */
        inline double y2p(double y) {
            if (yAxisLog) {
                if (y<=0) return yOffset-log(yMin/10.0)/JKQTPSTATISTICS_LN10*yScale;
                return yOffset-log(y)/JKQTPSTATISTICS_LN10*yScale;
            } else {
                return yOffset-y*yScale;
            }
        }

        /** \brief return y coordinate coordinate from y-pixel */
        inline double p2y(long y) {
            if (yAxisLog) {
                return exp(JKQTPSTATISTICS_LN10*(static_cast<double>(y)-yOffset)/(-1.0*yScale));
            } else {
                return (static_cast<double>(y)-yOffset)/(-1.0*yScale);
            }
        }

        /** \copydoc dragShapePen */ 
        inline void setDragShapePen(const QPen & __value)
        {
            if (this->dragShapePen != __value) {
                this->dragShapePen = __value; 
                update(); 
            } 
        } 
        /** \copydoc dragShapePen */ 
        inline QPen getDragShapePen() const
        {
            return this->dragShapePen; 
        }
        /** \copydoc dragLine */ 
        inline void setDragLine(bool __value)
        {
            if (this->dragLine != __value) {
                this->dragLine = __value; 
                update(); 
            } 
        } 
        /** \copydoc dragLine */ 
        inline bool getDragLine() const
        {
            return this->dragLine; 
        }

        /** \copydoc plotBorderLeft */ 
        inline void setPlotBorderLeft(int __value)
        {
            if (this->plotBorderLeft != __value) {
                this->plotBorderLeft = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc plotBorderLeft */ 
        inline int getPlotBorderLeft() const
        {
            return this->plotBorderLeft; 
        }
        /** \copydoc plotBorderBottom */ 
        inline void setPlotBorderBottom(int __value)
        {
            if (this->plotBorderBottom != __value) {
                this->plotBorderBottom = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc plotBorderBottom */ 
        inline int getPlotBorderBottom() const
        {
            return this->plotBorderBottom; 
        }
        /** \copydoc plotBorderRight */ 
        inline void setPlotBorderRight(int __value)
        {
            if (this->plotBorderRight != __value) {
                this->plotBorderRight = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc plotBorderRight */ 
        inline int getPlotBorderRight() const
        {
            return this->plotBorderRight; 
        }
        /** \copydoc plotBorderTop */ 
        inline void setPlotBorderTop(int __value)
        {
            if (this->plotBorderTop != __value) {
                this->plotBorderTop = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc plotBorderTop */ 
        inline int getPlotBorderTop() const
        {
            return this->plotBorderTop; 
        }
        /** \copydoc plotWidth */ 
        inline int getPlotWidth() const { 
            return this->plotWidth; 
        }
        /** \copydoc plotHeight */ 
        inline int getPlotHeight() const { 
            return this->plotHeight; 
        }
        /** \copydoc doDrawing */ 
        inline void setPlotUpdateEnabled(bool __value)
        {
            this->doDrawing = __value;
        } 
        /** \copydoc doDrawing */ 
        inline bool isPlotUpdateEnabled() const
        {
            return this->doDrawing; 
        }
        /** \copydoc internalPlotBorderLeft */ 
        inline int getInternalPlotBorderLeft() const { 
            return this->internalPlotBorderLeft; 
        }
        /** \copydoc internalPlotBorderBottom */ 
        inline int getInternalPlotBorderBottom() const { 
            return this->internalPlotBorderBottom; 
        }
        /** \copydoc internalPlotBorderRight */ 
        inline int getInternalPlotBorderRight() const { 
            return this->internalPlotBorderRight; 
        }
        /** \copydoc internalPlotBorderTop */ 
        inline int getInternalPlotBorderTop() const { 
            return this->internalPlotBorderTop; 
        }
        /** \copydoc xMin */ 
        inline double getXMin() const { 
            return this->xMin; 
        }
        /** \copydoc xMax */ 
        inline double getXMax() const { 
            return this->xMax; 
        }
        /** \copydoc yMin */ 
        inline double getYMin() const { 
            return this->yMin; 
        }
        /** \copydoc yMax */ 
        inline double getYMax() const { 
            return this->yMax; 
        }
        /** \copydoc xAxisLog */ 
        inline bool getXAxisLog() const { 
            return this->xAxisLog; 
        }
        /** \copydoc yAxisLog */ 
        inline bool getYAxisLog() const { 
            return this->yAxisLog; 
        }

        /** \copydoc backgroundColor */ 
        inline void setBackgroundColor(const QColor & __value)
        {
            if (this->backgroundColor != __value) {
                this->backgroundColor = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc backgroundColor */ 
        inline QColor getBackgroundColor() const
        {
            return this->backgroundColor; 
        }
        /** \copydoc plotBackgroundColor */ 
        inline void setPlotBackgroundColor(const QColor & __value)
        {
            if (this->plotBackgroundColor != __value) {
                this->plotBackgroundColor = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc plotBackgroundColor */ 
        inline QColor getPlotBackgroundColor() const
        {
            return this->plotBackgroundColor; 
        }
        /** \copydoc drawGrid */ 
        inline void setDrawGrid(bool __value)
        {
            if (this->drawGrid != __value) {
                this->drawGrid = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc drawGrid */ 
        inline bool getDrawGrid() const
        {
            return this->drawGrid; 
        }
        /** \copydoc gridColor */ 
        inline void setGridColor(const QColor & __value)
        {
            if (this->gridColor != __value) {
                this->gridColor = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc gridColor */ 
        inline QColor getGridColor() const
        {
            return this->gridColor; 
        }
        /** \copydoc gridStyle */ 
        inline void setGridStyle(Qt::PenStyle  __value)
        {
            if (this->gridStyle != __value) {
                this->gridStyle = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc gridStyle */ 
        inline Qt::PenStyle getGridStyle() const
        {
            return this->gridStyle; 
        }
        /** \copydoc gridWidth */ 
        inline void setGridWidth(double __value)
        {
            if (this->gridWidth != __value) {
                this->gridWidth = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc gridWidth */ 
        inline double getGridWidth() const
        {
            return this->gridWidth; 
        }
        /** \copydoc labelFontSize */ 
        inline void setLabelFontSize(double __value)
        {
            if (this->labelFontSize != __value) {
                this->labelFontSize = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc labelFontSize */ 
        inline double getLabelFontSize() const
        {
            return this->labelFontSize; 
        }
        /** \copydoc labelFontName */ 
        inline void setLabelFontName(const QString & __value)
        {
            if (this->labelFontName != __value) {
                this->labelFontName = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc labelFontName */ 
        inline QString getLabelFontName() const
        {
            return this->labelFontName; 
        }
        /** \copydoc tickFontSize */ 
        inline void setTickFontSize(double __value)
        {
            if (this->tickFontSize != __value) {
                this->tickFontSize = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc tickFontSize */ 
        inline double getTickFontSize() const
        {
            return this->tickFontSize; 
        }
        /** \copydoc tickFontName */ 
        inline void setTickFontName(const QString & __value)
        {
            if (this->tickFontName != __value) {
                this->tickFontName = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc tickFontName */ 
        inline QString getTickFontName() const
        {
            return this->tickFontName; 
        }
        /** \copydoc tickLength */ 
        inline void setTickLength(double __value)
        {
            if (this->tickLength != __value) {
                this->tickLength = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc tickLength */ 
        inline double getTickLength() const
        {
            return this->tickLength; 
        }
        /** \copydoc drawSystemBox */ 
        inline void setDrawSystemBox(bool __value)
        {
            if (this->drawSystemBox != __value) {
                this->drawSystemBox = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc drawSystemBox */ 
        inline bool getDrawSystemBox() const
        {
            return this->drawSystemBox; 
        }
        /** \copydoc drawZeroAxes */ 
        inline void setDrawZeroAxes(bool __value)
        {
            if (this->drawZeroAxes != __value) {
                this->drawZeroAxes = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc drawZeroAxes */ 
        inline bool getDrawZeroAxes() const
        {
            return this->drawZeroAxes; 
        }
        /** \copydoc systemColor */ 
        inline void setSystemColor(const QColor & __value)
        {
            if (this->systemColor != __value) {
                this->systemColor = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc systemColor */ 
        inline QColor getSystemColor() const
        {
            return this->systemColor; 
        }
        /** \copydoc systemWidth */ 
        inline void setSystemWidth(double __value)
        {
            if (this->systemWidth != __value) {
                this->systemWidth = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc systemWidth */ 
        inline double getSystemWidth() const
        {
            return this->systemWidth; 
        }
        /** \copydoc xZeroTick */ 
        inline void setXZeroTick(double __value)
        {
            if (this->xZeroTick != __value) {
                this->xZeroTick = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc xZeroTick */ 
        inline double getXZeroTick() const
        {
            return this->xZeroTick; 
        }
        /** \copydoc yZeroTick */ 
        inline void setYZeroTick(double __value)
        {
            if (this->yZeroTick != __value) {
                this->yZeroTick = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc yZeroTick */ 
        inline double getYZeroTick() const
        {
            return this->yZeroTick; 
        }
        /** \copydoc xTickDistance */ 
        inline void setXTickDistance(double __value)
        {
            if (this->xTickDistance != __value) {
                this->xTickDistance = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc xTickDistance */ 
        inline double getXTickDistance() const
        {
            return this->xTickDistance; 
        }
        /** \copydoc yTickDistance */ 
        inline void setYTickDistance(double __value)
        {
            if (this->yTickDistance != __value) {
                this->yTickDistance = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc yTickDistance */ 
        inline double getYTickDistance() const
        {
            return this->yTickDistance; 
        }
        /** \copydoc xAxisLabel */ 
        inline void setXAxisLabel(const QString & __value)
        {
            if (this->xAxisLabel != __value) {
                this->xAxisLabel = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc xAxisLabel */ 
        inline QString getXAxisLabel() const
        {
            return this->xAxisLabel; 
        }
        /** \copydoc yAxisLabel */ 
        inline void setYAxisLabel(const QString & __value)
        {
            if (this->yAxisLabel != __value) {
                this->yAxisLabel = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc yAxisLabel */ 
        inline QString getYAxisLabel() const
        {
            return this->yAxisLabel; 
        }
        /** \copydoc aspectRatio */ 
        inline void setAspectRatio(double __value)
        {
            if (this->aspectRatio != __value) {
                this->aspectRatio = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc aspectRatio */ 
        inline double getAspectRatio() const
        {
            return this->aspectRatio; 
        }
        /** \copydoc maintainAspectRatio */ 
        inline void setMaintainAspectRatio(bool __value)
        {
            if (this->maintainAspectRatio != __value) {
                this->maintainAspectRatio = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc maintainAspectRatio */ 
        inline bool doesMaintainAspectRatio() const
        {
            return this->maintainAspectRatio; 
        }
        /** \copydoc xAxisLabelVisible */ 
        inline void setXAxisLabelVisible(bool __value)
        {
            if (this->xAxisLabelVisible != __value) {
                this->xAxisLabelVisible = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc xAxisLabelVisible */ 
        inline bool getXAxisLabelVisible() const
        {
            return this->xAxisLabelVisible; 
        }
        /** \copydoc yAxisLabelVisible */ 
        inline void setYAxisLabelVisible(bool __value)
        {
            if (this->yAxisLabelVisible != __value) {
                this->yAxisLabelVisible = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc yAxisLabelVisible */ 
        inline bool getYAxisLabelVisible() const
        {
            return this->yAxisLabelVisible; 
        }
        /** \copydoc synchronizeX */ 
        inline void setSynchronizeX(JKQTFastPlotter*  __value)
        {
            if (this->synchronizeX != __value) {
                this->synchronizeX = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc synchronizeX */ 
        inline JKQTFastPlotter* getSynchronizeX() const
        {
            return this->synchronizeX; 
        }
        /** \copydoc synchronizeY */ 
        inline void setSynchronizeY(JKQTFastPlotter*  __value)
        {
            if (this->synchronizeY != __value) {
                this->synchronizeY = __value; 
                redrawPlot(); 
            } 
        } 
        /** \copydoc synchronizeY */ 
        inline JKQTFastPlotter* getSynchronizeY() const
        {
            return this->synchronizeY; 
        }

        /** \brief draw the contents onto any <a href="http://doc.qt.io/qt-5/qpainter.html">QPainter</a>, starting at (0,0), returns the size of the whole plot in \a size, if supplied with the default background color */
        void draw(QPainter* painter, QSize* size=nullptr);

        /** \brief draw the contents onto any <a href="http://doc.qt.io/qt-5/qpainter.html">QPainter</a>, starting at (0,0), returns the size of the whole plot in \a size, if supplied with the supplied\a background color */
        void draw(QPainter* painter, QColor background, QSize* size);

    signals:
        /** \brief emitted whenever the graph sizes (borders, plotWidth, plotHeight) change*/
        void plotterSizesChanged();
        /** \brief emitted whenever the graph is replotted */
        void replotting();
        /** \brief emitted whenever the mouse is clicked inside the plot */
        void clicked(double x, double y);
        /** \brief emitted whenever the mouse is clicked inside the plot */
        void clicked(double x, double y, Qt::KeyboardModifiers modifiers);
        /** \brief emitted whenever the mouse is double-clicked inside the plot */
        void doubleClicked(double x, double y);
        /** \brief emitted whenever the mouse is double-clicked inside the plot */
        void doubleClicked(double x, double y, Qt::KeyboardModifiers modifiers);
        /** \brief emitted whenever the mouse is clicked inside the plot */
        void mouseMoved(double x, double y);
        /** \brief emitted when the mouse has been dragged with the left button clicked */
        void mouseDragged(double x_start, double y_start, double x_end, double y_end, Qt::KeyboardModifiers modifiers);
        /** \brief emitted after the mouse has been dragged with the left button clicked */
        void mouseDragFinished(double x_start, double y_start, double x_end, double y_end, Qt::KeyboardModifiers modifiers);
    public slots:
        /** \brief copy the current plot image to the clipboard */
        void copyImage();
        /** \brief replot everything (slowest possible plotting) */
        void redrawPlot();
        /** \brief replot everything (slowest possible plotting) and forces a repaint calling QWidget::repaint() */
        void redrawPlotImmediate();
        /** \brief replot only the data
         *
         *  This internally calls QWidget::update(), so no immediate repaint() is forced! If you want an immediate update,
         * call updateDataImmediate() instead!
         */
        void updateData();
        /** \brief replot only the data, forces a redraw by calling QWidget::repaint()  */
        void updateDataImmediate();

        /** \brief set xMin*/
        void setXMin(double value);
        /** \brief set xMax*/
        void setXMax(double value);
        /** \brief set yMin*/
        void setYMin(double value);
        /** \brief set yMax*/
        void setYMax(double value);


};





/*! \brief base class for all plots that may be plotted by JKQTFastPlotter
    \ingroup jkqtfastplotter_PlotItems
*/
class JKQTFASTPLOTTER_LIB_EXPORT JKQTFPPlot: public QObject {
        Q_OBJECT
    protected:
        /** \brief parent class, i.e. the plotter to plot on */
        JKQTFastPlotter* parent;

        /** \brief indicates whether the plot is visible or not */
        bool visible;
    public:
        /** \brief class constructor */
        JKQTFPPlot(JKQTFastPlotter* parent);

        /** \brief virtual class destructor */
        virtual ~JKQTFPPlot();

        /** \brief set the parent of the plot */
        void setParent(JKQTFastPlotter* parent) { this->parent=parent; QObject::setParent(parent); }

        /** \brief returns whether this graph is visible inside the plot */
        bool isVisible() const { return this->visible; }

        /** \brief draw the graph */
        virtual void drawGraph(QPainter& painter)=0;

        /** \brief draw the graph */
        void paint(QPainter& painter);

        /** \brief start a replot of the parent widget */
        void replot();
    public slots:
        void setVisible(bool visible) { this->visible=visible; replot(); }

};



/*! \brief a simple line plot for JKQTFastPlotter
    \ingroup jkqtfastplotter_PlotItems

    This class plots data as (x,y) points connected by straight lines. If errors for the y values are
    provided, also y+/-yerr errorlines are drawn.
*/
class JKQTFASTPLOTTER_LIB_EXPORT JKQTFPLinePlot: public JKQTFPPlot {
    public:
        /** \brief used to store which datatype is used for the plot data */
        enum DataType {
            JKQTFPLPPointer,
            JKQTFPLPVector
        };
    protected:
        /** \brief number of datapoints in the plot */
        int N;
        /** \brief pointer to x-coordinate data to display */
        double* x;
        /** \brief pointer to y-coordinate data to display */
        double* y;
        /** \brief pointer to yerr-coordinate data to display */
        double* yerr;
        /** \brief pointer to x-coordinate data to display */
        QVector<double>* xv;
        /** \brief pointer to y-coordinate data to display */
        QVector<double>* yv;
        /** \brief pointer to yerr-coordinate data to display */
        QVector<double>* yerrv;
        /** \brief which type of data is used for plotting ? */
        DataType datatype;
        /** \brief color of the graph */
        QColor color;
        /** \brief style of the graph */
        Qt::PenStyle style;
        /** \brief width of the graph (in pt) */
        double width;
        /** \brief color of the graph */
        QColor errorColor;
        /** \brief style of the graph */
        Qt::PenStyle errorStyle;
        /** \brief width of the graph (in pt) */
        double errorWidth;
    public:
        /*! \brief class constructor

            \param parent parent widget
            \param N number of datapoints in the plot
            \param x points to the x values in the plot
            \param y points to the y values in the plot
            \param color color of the plot
            \param style style of the graph
            \param width width of the plot (in pt)
         */
        JKQTFPLinePlot(JKQTFastPlotter* parent, int N, double* x, double* y, QColor color=QColor("red"), Qt::PenStyle style=Qt::SolidLine, double width=1) ;
        /*! \brief class constructor

            \param parent parent widget
            \param x points to the x values in the plot
            \param y points to the y values in the plot
            \param color color of the plot
            \param style style of the graph
            \param width width of the plot (in pt)
         */
        JKQTFPLinePlot(JKQTFastPlotter* parent, QVector<double>* x, QVector<double>* y, QColor color=QColor("red"), Qt::PenStyle style=Qt::SolidLine, double width=1) ;

        /** \brief draw the graph */
        virtual void drawGraph(QPainter& painter) override;

        inline void setData(double* x, double* y, int N) {
            this->x=x;
            this->y=y;
            this->yerr=nullptr;
            this->N=N;
            datatype=JKQTFPLPPointer;
            replot();
        }

        inline void setData(double* x, double* y, double* yerr, int N) {
            this->x=x;
            this->y=y;
            this->yerr=yerr;
            this->N=N;
            datatype=JKQTFPLPPointer;
            replot();
        }

        inline void setData(QVector<double>* x, QVector<double>* y) {
            this->x=nullptr;
            this->y=nullptr;
            this->yerr=nullptr;
            this->xv=x;
            this->yv=y;
            this->yerrv=nullptr;
            this->N=x->size();
            datatype=JKQTFPLPVector;
            replot();
        }

        inline void setData(QVector<double>* x, QVector<double>* y, QVector<double>* yerr) {
            this->x=nullptr;
            this->y=nullptr;
            this->yerr=nullptr;
            this->xv=x;
            this->yv=y;
            this->yerrv=yerr;
            this->N=x->size();
            datatype=JKQTFPLPVector;
            replot();
        }

        inline int getN() {
            if (datatype==JKQTFPLPPointer)
                return N;
            if (datatype==JKQTFPLPVector)
                return xv->size();
            return N;
        }

        /** \copydoc x */ 
        inline double* getX() const { 
            return this->x; 
        }
        /** \copydoc y */ 
        inline double* getY() const { 
            return this->y; 
        }
        /** \copydoc yerr */ 
        inline double* getYerr() const { 
            return this->yerr; 
        }
        /** \copydoc xv */ 
        inline QVector<double>* getXv() const { 
            return this->xv; 
        }
        /** \copydoc yv */ 
        inline QVector<double>* getYv() const { 
            return this->yv; 
        }
        /** \copydoc yerrv */ 
        inline QVector<double>* getYerrv() const { 
            return this->yerrv; 
        }
        /** \copydoc datatype */ 
        inline DataType getDatatype() const { 
            return this->datatype; 
        }
        /** \copydoc color */ 
        inline void setColor(const QColor & __value)
        {
            if (this->color != __value) {
                this->color = __value; 
                replot(); 
            } 
        } 
        /** \copydoc color */ 
        inline QColor getColor() const
        {
            return this->color; 
        }
        /** \copydoc style */ 
        inline void setStyle(Qt::PenStyle  __value)
        {
            if (this->style != __value) {
                this->style = __value; 
                replot(); 
            } 
        } 
        /** \copydoc style */ 
        inline Qt::PenStyle getStyle() const
        {
            return this->style; 
        }
        /** \copydoc width */ 
        inline void setWidth(double __value)
        {
            if (this->width != __value) {
                this->width = __value; 
                replot(); 
            } 
        } 
        /** \copydoc width */ 
        inline double getWidth() const
        {
            return this->width; 
        }
        /** \copydoc errorColor */ 
        inline void setErrorLineColor(const QColor & __value)
        {
            if (this->errorColor != __value) {
                this->errorColor = __value; 
                replot(); 
            } 
        } 
        /** \copydoc errorColor */ 
        inline QColor getErrorLineColor() const
        {
            return this->errorColor; 
        }
        /** \copydoc errorStyle */ 
        inline void setErrorLineStyle(Qt::PenStyle  __value)
        {
            if (this->errorStyle != __value) {
                this->errorStyle = __value; 
                replot(); 
            } 
        } 
        /** \copydoc errorStyle */ 
        inline Qt::PenStyle getErrorLineStyle() const
        {
            return this->errorStyle; 
        }
        /** \copydoc errorWidth */ 
        inline void setErrorLineWidth(double __value)
        {
            if (this->errorWidth != __value) {
                this->errorWidth = __value; 
                replot(); 
            } 
        } 
        /** \copydoc errorWidth */ 
        inline double getErrorLineWidth() const
        {
            return this->errorWidth; 
        }
};




/*! \brief a simple plot that draws a cross for every datapoint
    \ingroup jkqtfastplotter_PlotItems

    This class does not support y errors!
*/
class JKQTFASTPLOTTER_LIB_EXPORT JKQTFPVCrossPlot: public JKQTFPLinePlot {
        Q_OBJECT
    public:
        /*! \brief class constructor

            \param parent parent widget
            \param N number of datapoints in the plot
            \param x points to the x values in the plot
            \param y points to the y values in the plot
            \param color color of the plot
            \param style style of the graph
            \param width width of the plot (in pt)
         */
        JKQTFPVCrossPlot(JKQTFastPlotter* parent, int N, double* x, double* y, QColor color=QColor("red"), Qt::PenStyle style=Qt::SolidLine, double width=1) ;

        /*! \brief class constructor

            \param parent parent widget
            \param x points to the x values in the plot
            \param y points to the y values in the plot
            \param color color of the plot
            \param style style of the graph
            \param width width of the plot (in pt)
         */
        JKQTFPVCrossPlot(JKQTFastPlotter* parent, QVector<double>* x, QVector<double>* y, QColor color=QColor("red"), Qt::PenStyle style=Qt::SolidLine, double width=1) ;

        /** \brief draw the graph */
        virtual void drawGraph(QPainter& painter) override;

        /** \copydoc crossWidth */ 
        inline void setCrossWidth(double __value)
        {
            if (this->crossWidth != __value) {
                this->crossWidth = __value; 
                replot(); 
            } 
        } 
        /** \copydoc crossWidth */ 
        inline double getCrossWidth() const
        {
            return this->crossWidth; 
        }
    protected:
        /** \brief width of the crosses */
        double crossWidth;

};



/*! \brief a simple vertical bar plot for JKQTFastPlotter
    \ingroup jkqtfastplotter_PlotItems

    This class does not support y errors!
*/
class JKQTFASTPLOTTER_LIB_EXPORT JKQTFPVBarPlot: public JKQTFPLinePlot {
        Q_OBJECT
    public:
        /*! \brief class constructor

            \param parent parent widget
            \param N number of datapoints in the plot
            \param x points to the x values in the plot
            \param y points to the y values in the plot
            \param color color of the plot
            \param style style of the graph
            \param width width of the plot (in pt)
         */
        JKQTFPVBarPlot(JKQTFastPlotter* parent, int N, double* x, double* y, QColor color=QColor("red"), Qt::PenStyle style=Qt::SolidLine, double width=1) ;

        /*! \brief class constructor

            \param parent parent widget
            \param x points to the x values in the plot
            \param y points to the y values in the plot
            \param color color of the plot
            \param style style of the graph
            \param width width of the plot (in pt)
         */
        JKQTFPVBarPlot(JKQTFastPlotter* parent, QVector<double>* x, QVector<double>* y, QColor color=QColor("red"), Qt::PenStyle style=Qt::SolidLine, double width=1) ;

        /** \brief draw the graph */
        virtual void drawGraph(QPainter& painter) override;
};


/*! \brief plot a range of x values
    \ingroup jkqtfastplotter_PlotItems

*/
class JKQTFASTPLOTTER_LIB_EXPORT JKQTFPXRangePlot: public JKQTFPPlot {
        Q_OBJECT
    protected:
        /** \brief start of x range */
        double xmin;
        /** \brief end of x range */
        double xmax;
        double centerline;
        bool showCenterline;
        /** \brief color of the graph */
        QColor color;
        /** \brief style of the graph */
        Qt::PenStyle style;
        /** \brief width of the graph (in pt) */
        double width;
        /** \brief fill color of the graph */
        QColor fillColor;
        /** \brief fill style of the graph */
        Qt::BrushStyle fillStyle;
    public:
        /*! \brief class constructor

            \param parent parent widget
            \param xmin range start
            \param xmax range end
            \param color color of the plot
            \param style style of the graph
            \param width width of the plot (in pt)
            \param fillStyle fill style of the range
         */
        JKQTFPXRangePlot(JKQTFastPlotter* parent, double xmin, double xmax, QColor color=QColor("red"), Qt::PenStyle style=Qt::SolidLine, double width=1, Qt::BrushStyle fillStyle=Qt::NoBrush) ;

        /** \brief draw the graph */
        virtual void drawGraph(QPainter& painter) override;

        /** \copydoc color */ 
        inline void setColor(const QColor & __value)
        {
            if (this->color != __value) {
                this->color = __value; 
                replot(); 
            } 
        } 
        /** \copydoc color */ 
        inline QColor getColor() const
        {
            return this->color; 
        }
        /** \copydoc fillColor */ 
        inline void setFillColor(const QColor & __value)
        {
            if (this->fillColor != __value) {
                this->fillColor = __value; 
                replot(); 
            } 
        } 
        /** \copydoc fillColor */ 
        inline QColor getFillColor() const
        {
            return this->fillColor; 
        }
        /** \copydoc fillStyle */ 
        inline void setFillStyle(Qt::BrushStyle  __value)
        {
            if (this->fillStyle != __value) {
                this->fillStyle = __value; 
                replot(); 
            } 
        } 
        /** \copydoc fillStyle */ 
        inline Qt::BrushStyle getFillStyle() const
        {
            return this->fillStyle; 
        }
        /** \copydoc style */ 
        inline void setStyle(Qt::PenStyle  __value)
        {
            if (this->style != __value) {
                this->style = __value; 
                replot(); 
            } 
        } 
        /** \copydoc style */ 
        inline Qt::PenStyle getStyle() const
        {
            return this->style; 
        }
        /** \copydoc width */ 
        inline void setWidth(double __value)
        {
            if (this->width != __value) {
                this->width = __value; 
                replot(); 
            } 
        } 
        /** \copydoc width */ 
        inline double getWidth() const
        {
            return this->width; 
        }
        /** \copydoc xmin */ 
        inline double getXmin() const { 
            return this->xmin; 
        }
        /** \copydoc xmax */ 
        inline double getXmax() const { 
            return this->xmax; 
        }
        /** \copydoc centerline */ 
        inline double getCenterline() const { 
            return this->centerline; 
        }
        /** \copydoc showCenterline */ 
        inline void setShowCenterline(bool __value)
        {
            if (this->showCenterline != __value) {
                this->showCenterline = __value; 
                replot(); 
            } 
        } 
        /** \copydoc showCenterline */ 
        inline bool getShowCenterline() const
        {
            return this->showCenterline; 
        }
    public slots:
        void setCenterline(int centerline) {
            if (this->centerline!=centerline) {
                this->centerline=centerline;
                replot();
            }
        }
        void setXmin(double xmin) {
            if (this->xmin!=xmin) {
                this->xmin=xmin;
                replot();
            }
        }
        void setXmax(double xmax) {
            if (this->xmax!=xmax) {
                this->xmax=xmax;
                replot();
            }
        }
        void setXmin(int xmin) {
            if (this->xmin!=xmin) {
                this->xmin=xmin;
                replot();
            }
        }
        void setXmax(int xmax) {
            if (this->xmax!=xmax) {
                this->xmax=xmax;
                replot();
            }
        }
};



/*! \brief plot a range of x values
    \ingroup jkqtfastplotter_PlotItems

*/
class JKQTFASTPLOTTER_LIB_EXPORT JKQTFPYRangePlot: public JKQTFPPlot {
        Q_OBJECT
    protected:
        /** \brief start of x range */
        double ymin;
        /** \brief end of x range */
        double ymax;
        double centerline;
        bool showCenterline;
        /** \brief color of the graph */
        QColor color;
        /** \brief style of the graph */
        Qt::PenStyle style;
        /** \brief width of the graph (in pt) */
        double width;
        /** \brief fill color of the graph */
        QColor fillColor;
        /** \brief fill style of the graph */
        Qt::BrushStyle fillStyle;
    public:
        /*! \brief class constructor

            \param parent parent widget
            \param ymin range start
            \param ymax range end
            \param color color of the plot
            \param style style of the graph
            \param width width of the plot (in pt)
            \param fillStyle fill style of the range
         */
        JKQTFPYRangePlot(JKQTFastPlotter* parent, double ymin, double ymax, QColor color=QColor("red"), Qt::PenStyle style=Qt::SolidLine, double width=1, Qt::BrushStyle fillStyle=Qt::NoBrush) ;

        /** \brief draw the graph */
        virtual void drawGraph(QPainter& painter) override;

        /** \copydoc color */ 
        inline void setColor(const QColor & __value)
        {
            if (this->color != __value) {
                this->color = __value; 
                replot(); 
            } 
        } 
        /** \copydoc color */ 
        inline QColor getColor() const
        {
            return this->color; 
        }
        /** \copydoc fillColor */ 
        inline void setFillColor(const QColor & __value)
        {
            if (this->fillColor != __value) {
                this->fillColor = __value; 
                replot(); 
            } 
        } 
        /** \copydoc fillColor */ 
        inline QColor getFillColor() const
        {
            return this->fillColor; 
        }
        /** \copydoc fillStyle */ 
        inline void setFillStyle(Qt::BrushStyle  __value)
        {
            if (this->fillStyle != __value) {
                this->fillStyle = __value; 
                replot(); 
            } 
        } 
        /** \copydoc fillStyle */ 
        inline Qt::BrushStyle getFillStyle() const
        {
            return this->fillStyle; 
        }
        /** \copydoc style */ 
        inline void setStyle(Qt::PenStyle  __value)
        {
            if (this->style != __value) {
                this->style = __value; 
                replot(); 
            } 
        } 
        /** \copydoc style */ 
        inline Qt::PenStyle getStyle() const
        {
            return this->style; 
        }
        /** \copydoc width */ 
        inline void setWidth(double __value)
        {
            if (this->width != __value) {
                this->width = __value; 
                replot(); 
            } 
        } 
        /** \copydoc width */ 
        inline double getWidth() const
        {
            return this->width; 
        }
        /** \copydoc ymin */ 
        inline double getYmin() const { 
            return this->ymin; 
        }
        /** \copydoc ymax */ 
        inline double getYmax() const { 
            return this->ymax; 
        }
        /** \copydoc centerline */ 
        inline double getCenterline() const { 
            return this->centerline; 
        }
        /** \copydoc showCenterline */ 
        inline void setShowCenterline(bool __value)
        {
            if (this->showCenterline != __value) {
                this->showCenterline = __value; 
                replot(); 
            } 
        } 
        /** \copydoc showCenterline */ 
        inline bool getShowCenterline() const
        {
            return this->showCenterline; 
        }
    public slots:
        void setCenterline(int centerline) {
            if (this->centerline!=centerline) {
                this->centerline=centerline;
                replot();
            }
        }
        void setYmin(double xmin) {
            if (this->ymin!=xmin) {
                this->ymin=xmin;
                replot();
            }
        }
        void setYmax(double xmax) {
            if (this->ymax!=xmax) {
                this->ymax=xmax;
                replot();
            }
        }
        void setYmin(int xmin) {
            if (this->ymin!=xmin) {
                this->ymin=xmin;
                replot();
            }
        }
        void setYmax(int xmax) {
            if (this->ymax!=xmax) {
                this->ymax=xmax;
                replot();
            }
        }
};



/*! \brief a plot of a QImage
    \ingroup jkqtfastplotter_PlotItems
*/
class JKQTFASTPLOTTER_LIB_EXPORT JKQTFPQImagePlot: public JKQTFPPlot {
        Q_OBJECT
    protected:
        /** \brief image to plot */
        QImage* image;
        /** \brief minimum x value of the image */
        double xmin;
        /** \brief maximum x value of the image */
        double xmax;
        /** \brief minimum x value of the image */
        double ymin;
        /** \brief maximum x value of the image */
        double ymax;
    public:
        /*! \brief class constructor

         */
        JKQTFPQImagePlot(JKQTFastPlotter* parent, QImage* image, double xmin, double xmax, double ymin, double ymax) ;

        JKQTFPQImagePlot(JKQTFastPlotter* parent, QImage* image);

        /** \brief draw the graph */
        virtual void drawGraph(QPainter& painter) override;

        /** \copydoc image */ 
        inline void setImage(QImage* __value)
        {
            if (this->image != __value) {
                this->image = __value; 
                replot(); 
            } 
        } 
        /** \copydoc image */ 
        inline QImage* getImage() const
        {
            return this->image; 
        }
        /** \copydoc xmin */ 
        inline void setXmin(double __value)
        {
            if (this->xmin != __value) {
                this->xmin = __value; 
                replot(); 
            } 
        } 
        /** \copydoc xmin */ 
        inline double getXmin() const
        {
            return this->xmin; 
        }
        /** \copydoc xmax */ 
        inline void setXmax(double __value)
        {
            if (this->xmax != __value) {
                this->xmax = __value; 
                replot(); 
            } 
        } 
        /** \copydoc xmax */ 
        inline double getXmax() const
        {
            return this->xmax; 
        }
        /** \copydoc ymin */ 
        inline void setYmin(double __value)
        {
            if (this->ymin != __value) {
                this->ymin = __value; 
                replot(); 
            } 
        } 
        /** \copydoc ymin */ 
        inline double getYmin() const
        {
            return this->ymin; 
        }
        /** \copydoc ymax */ 
        inline void setYmax(double __value)
        {
            if (this->ymax != __value) {
                this->ymax = __value; 
                replot(); 
            } 
        } 
        /** \copydoc ymax */ 
        inline double getYmax() const
        {
            return this->ymax; 
        }
};



/*!
   \brief An enum for selecting the palette for coloring
    \ingroup jkqtfastplotter_tools

   Here, the color palettes are illustrated (left is the color for the minimum and right for the maximum).
 */
enum JKQTFPColorPalette {
    JKQTFP_RED=0, /*!< \image html palettes/palette_red.png */
    JKQTFP_INVERTEDRED=1, /*!< \image html palettes/palette_invred.png */
    JKQTFP_GREEN=2, /*!< \image html palettes/palette_green.png */
    JKQTFP_INVERTEDGREEN=3, /*!< \image html palettes/palette_invgreen.png */
    JKQTFP_BLUE=4, /*!< \image html palettes/palette_blue.png */
    JKQTFP_INVERTEDBLUE=5, /*!< \image html palettes/palette_invblue.png */
    JKQTFP_GRAY=6, /*!< \image html palettes/palette_gray.png */
    JKQTFP_INVERTEDGRAY=7, /*!< \image html palettes/palette_invgray.png */
    JKQTFP_MATLAB=8, /*!< \image html palettes/palette_Matlab.png */
    JKQTFP_RYGB=9, /*!< \image html palettes/palette_RYGB.png */
    JKQTFP_HSV=10, /*!< \image html palettes/palette_HSV.png */
    JKQTFP_INVERTED_HSV=11, /*!< \image html palettes/palette_invHSV.png */
    JKQTFP_RAINBOW=12, /*!< \image html palettes/palette_rainbow.png */
    JKQTFP_HOT=13, /*!< \image html palettes/palette_AFMhot.png */
    JKQTFP_OCEAN=14, /*!< \image html palettes/palette_ocean.png */
    JKQTFP_TRAFFICLIGHT=15, /*!< \image html palettes/palette_trafficlight.png */
    JKQTFP_BLUEMAGENTAYELLOW=16, /*!< \image html palettes/palette_BlMaYe.png */
    JKQTFP_BLUEYELLOW=17, /*!< \image html palettes/palette_BlYe.png */
    JKQTFP_CYAN=18 /*!< \image html palettes/palette_cyan.png */
};

/*! \brief datatype for an image plotpalette for coloring
    \ingroup jkqtfastplotter_tools

   Here, the color palettes are illustrated (left is the color for the minimum and right for the maximum).
 */
enum JKQTFPImageFormat {
    JKQTFP_uint8=0,  /*!< \brief 8 bit int */
    JKQTFP_uint16=1, /*!< \brief 16 bit int */
    JKQTFP_uint32=2, /*!< \brief 32 bit int */
    JKQTFP_float=3,  /*!< \brief float */
    JKQTFP_double=4, /*!< \brief double */
    JKQTFP_int64=5   /*!< \brief 64 bit signed int */
};



/*! \brief convert a 2D image (as 1D array) into a QImage with given palette (see JKQTFPColorPalette)
    \ingroup jkqtfastplotter_tools

    This method uses lookup tables which are saved as static variables to convert the 2D array into
    an image. The luts are only created once, and stored then, so mor CPU time is saved. The precompiler define
    JKQTFastPlotter::LUTSIZE sets the size of the LUTs. Note that if you don't use a specific color palette,
    the according LUT won't be calculated and stored!
*/
template <class T>
inline void JKQTFPimagePlot_array2image(T* dbl, int width, int height, QImage &img, JKQTFPColorPalette palette, double minColor, double maxColor)
{
    if (!dbl)
        return;

    #ifdef DEBUG_TIMING
    JKQTPHighResTimer timer;
    double time_sum=0;
    double time_gt=0;
    std::cout<<"  timing JKQTFPimagePlot_array2image:\n";
    timer.start();
    #endif
    //std::cout<<"color range: "<<minColor<<"..."<<maxColor<<std::endl;
    double min = *dbl;
    double max = *dbl;
    if (minColor == maxColor) {
        for (int i=1; i<width*height; ++i)
        {
            T v=dbl[i];
            if (v < min)
                min = v;
            else if (v > max)
                max = v;
        }
    } else {
        min = minColor;
        max = maxColor;
    }
    #ifdef DEBUG_TIMING
    time_gt=timer.getTime();
    time_sum+=time_gt;
    std::cout<<"      finding min&max: "<<time_gt/1000.0<<" ms\n";
    timer.start();
    #endif
    //std::cout<<"minColor="<<minColor<<"   maxColor="<<maxColor<<"       min="<<min<<"  max="<<max<<"\n";

    double delta=max-min;

    QRgb* lut_used=nullptr;
    static QRgb* lut_red=nullptr;
    static QRgb* lut_green=nullptr;
    static QRgb* lut_blue=nullptr;
    static QRgb* lut_gray=nullptr;
    static QRgb* lut_invred=nullptr;
    static QRgb* lut_invgreen=nullptr;
    static QRgb* lut_invblue=nullptr;
    static QRgb* lut_invgray=nullptr;
    static QRgb* lut_matlab=nullptr;
    static QRgb* lut_rygb=nullptr;
    static QRgb* lut_hsv=nullptr;
    static QRgb* lut_invhsv=nullptr;
    static QRgb* lut_rainbow=nullptr;
    static QRgb* lut_hot=nullptr;
    static QRgb* lut_ocean=nullptr;
    static QRgb* lut_trafficlight=nullptr;
    static QRgb* lut_bluemagentayellow=nullptr;
    static QRgb* lut_blueyellow=nullptr;
    static QRgb* lut_cyan=nullptr;


    img = QImage(width, height, QImage::Format_ARGB32_Premultiplied);
    if (min == max)
        img.fill(0);
    else
    {
        if (palette == JKQTFP_RED)
        {
            QRgb** plut=&lut_red;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                        (*plut)[l]=qRgb(static_cast<int>(255.0*v), 0, 0);
                    }
                }
            }
            lut_used=(*plut);

        }
        else if (palette == JKQTFP_GREEN)
        {
            QRgb** plut=&lut_green;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                        (*plut)[l]=qRgb(0, static_cast<int>(255.0*v), 0);
                    }
                }
            }
            lut_used=(*plut);

        }
        else if (palette == JKQTFP_BLUE)
        {
            QRgb** plut=&lut_blue;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                        (*plut)[l]=qRgb(0, 0, static_cast<int>(255.0*v));
                    }
                }
            }
            lut_used=(*plut);

        }


        else if (palette == JKQTFP_GRAY)
        {
            QRgb** plut=&lut_gray;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                        (*plut)[l]=qRgb(static_cast<int>(255.0*v),
                                            static_cast<int>(255.0*v),
                                            static_cast<int>(255.0*v));
                    }
                }
            }
            lut_used=(*plut);
        }

        else if (palette == JKQTFP_INVERTEDRED)
        {
            QRgb** plut=&lut_invred;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                        (*plut)[l]=qRgb(static_cast<int>(255.0*(1.0-v)), 0, 0);
                    }
                }
            }
            lut_used=(*plut);

        }
        else if (palette == JKQTFP_INVERTEDGREEN)
        {
            QRgb** plut=&lut_invgreen;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                        (*plut)[l]=qRgb(0, static_cast<int>(255.0*(1.0-v)), 0);
                    }
                }
            }
            lut_used=(*plut);
        }
        else if (palette == JKQTFP_INVERTEDBLUE)
        {
            QRgb** plut=&lut_invblue;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                        (*plut)[l]=qRgb(0, 0, static_cast<int>(255.0*(1.0-v)));
                    }
                }
            }
            lut_used=(*plut);
        }
        else if (palette == JKQTFP_INVERTEDGRAY)
        {
            QRgb** plut=&lut_invgray;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=1.0-(l/static_cast<double>(JKQTFastPlotter::LUTSIZE));
                        (*plut)[l]=qRgb(static_cast<int>(255.0*v),
                                            static_cast<int>(255.0*v),
                                            static_cast<int>(255.0*v));
                    }
                }
            }
            lut_used=(*plut);
        }

        else if (palette == JKQTFP_MATLAB)
        {
            QRgb** plut=&lut_matlab;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                        double r = 382.5 - 1020.0 * std::abs(v - 0.75);
                        if (r > 255.0)
                            r = 255.0;
                        else if (r < 0.0)
                            r = 0.0;

                        double g = 382.5 - 1020.0 * std::abs(v - 0.5);
                        if (g > 255.0)
                            g = 255.0;
                        else if (g < 0.0)
                            g = 0.0;

                        double b = 382.5 - 1020.0 * std::abs(v - 0.25);
                        if (b > 255.0)
                            b = 255.0;
                        else if (b < 0.0)
                            b = 0.0;

                        (*plut)[l]=qRgb(static_cast<int>(r), static_cast<int>(g), static_cast<int>(b));
                    }
                }
            }
            lut_used=(*plut);

        }
        else if (palette == JKQTFP_RYGB) //gnuplot: 30,-13,-23
        {
            QRgb** plut=&lut_rygb;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                        double r = 796.875*v - 199.21875;
                        if (r > 255.0)
                            r = 255.0;
                        else if (r < 0.0)
                            r = 0.0;

                        double g = 255.0 * std::sin(JKQTPSTATISTICS_PI*v);

                        double b = 255.0 - 765.0 * v;
                        if (b < 0.0)
                            b = 0.0;
                        (*plut)[l]=qRgb(static_cast<int>(r), static_cast<int>(g), static_cast<int>(b));
                    }
                }
            }
            lut_used=(*plut);

        }
        else if (palette == JKQTFP_HSV)
        {
            QRgb** plut=&lut_hsv;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                        int h = static_cast<int>(floor(6*v));
                        double f = 6*v-double(h);

                        switch (h)
                        {
                            case 0: (*plut)[l]=qRgb(255, static_cast<int>(255.0*f), 0); break;
                            case 1: (*plut)[l]=qRgb(static_cast<int>(255.0*(1-f)), 255, 0); break;
                            case 2: (*plut)[l]=qRgb(0, 255, static_cast<int>(255.0*f)); break;
                            case 3: (*plut)[l]=qRgb(0, static_cast<int>(255.0*(1-f)), 255); break;
                            case 4: (*plut)[l]=qRgb(static_cast<int>(255.0*f), 0, 255); break;
                            case 5: (*plut)[l]=qRgb(255, 0, static_cast<int>(255.0*(1-f))); break;
                            case 6: (*plut)[l]=qRgb(255, static_cast<int>(255.0*f), 0); break;
                        }
                    }
                }
            }
            lut_used=(*plut);
        }
        else if (palette == JKQTFP_INVERTED_HSV)
        {
            QRgb** plut=&lut_invhsv;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                        int h = static_cast<int>(floor(6.0-6.0*v));
                        double f = 6.0-6.0*v-double(h);

                        switch (h)
                        {
                            case 0: (*plut)[l]=qRgb(255, static_cast<int>(255.0*f), 0); break;
                            case 1: (*plut)[l]=qRgb(static_cast<int>(255.0*(1-f)), 255, 0); break;
                            case 2: (*plut)[l]=qRgb(0, 255, static_cast<int>(255.0*f)); break;
                            case 3: (*plut)[l]=qRgb(0, static_cast<int>(255.0*(1-f)), 255); break;
                            case 4: (*plut)[l]=qRgb(static_cast<int>(255.0*f), 0, 255); break;
                            case 5: (*plut)[l]=qRgb(255, 0, static_cast<int>(255.0*(1-f))); break;
                            case 6: (*plut)[l]=qRgb(255, static_cast<int>(255.0*f), 0); break;
                        }
                    }
                }
            }
            lut_used=(*plut);

        }
        else if (palette == JKQTFP_RAINBOW) //gnuplot: 33,13,10
        {
            if (lut_rainbow==nullptr) {
                lut_rainbow=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                //std::cout<<"!!! creating rainbow lut\n";
                if (lut_rainbow!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                        double r = 255.0*std::abs(2.0*v-0.5);
                        if (r > 255.0)
                            r = 255.0;

                        double g = 255.0*sin(JKQTPSTATISTICS_PI*v);

                        double b = 255.0*cos(0.5*JKQTPSTATISTICS_PI*v);

                        lut_rainbow[l]=qRgb(static_cast<int>(r), static_cast<int>(g), static_cast<int>(b));
                    }
                }
            }
            lut_used=lut_rainbow;
        }
        else if (palette == JKQTFP_HOT) //gnuplot: 21,22,23
        {
            QRgb** plut=&lut_hot;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                    double r = 765.0*v;
                    if (r > 255.0)
                        r = 255.0;

                    double g = 765.0*v-255.0;
                    if (g > 255.0)
                        g = 255.0;
                    else if (g < 0.0)
                        g = 0.0;

                    double b = 765.0*v-510.0;
                    if (b < 0.0)
                        b = 0.0;
                    (*plut)[l]=qRgb(static_cast<int>(r), static_cast<int>(g), static_cast<int>(b));
                    }
                }
            }
            lut_used=(*plut);
        }
        else if (palette == JKQTFP_OCEAN) //gnuplot: 23,28,3
        {
            QRgb** plut=&lut_ocean;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                        double r = 765.0*v-510.0;
                        if (r < 0.0)
                            r = 0.0;

                        double g = std::abs(382.5*v-127.5);

                        double b = 255.0*v;
                        (*plut)[l]=qRgb(static_cast<int>(r), static_cast<int>(g), static_cast<int>(b));
                    }
                }
            }
            lut_used=(*plut);
        }
        else if (palette == JKQTFP_BLUEMAGENTAYELLOW) //gnuplot: 30,31,32
        {
            QRgb** plut=&lut_bluemagentayellow;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                        double r = (v/0.32-0.78125);
                        if (r < 0.0) r = 0.0;
                        if (r > 1.0) r = 1.0;

                        double g = 2.0*v-0.84;
                        if (g < 0.0) g = 0.0;
                        if (g > 1.0) g = 1.0;

                        double b = 4.0*v;
                        if (b>1 || b<0) b = -2.0*v+1.84;
                        if (b>1 || b<0) b = v/0.08-11.5;
                        if (b>1 || b<0) b=1;

                        if (b < 0.0) b = 0.0;
                        if (b > 1.0) b = 1.0;
                        (*plut)[l]=qRgb(static_cast<int>(255.0*r), static_cast<int>(255.0*g), static_cast<int>(255.0*b));
                    }
                }
            }
            lut_used=(*plut);
        }
        else if (palette == JKQTFP_BLUEYELLOW) //gnuplot: 8,9,10
        {
            QRgb** plut=&lut_blueyellow;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                        double r = sqrt(sqrt(v));
                        if (r < 0.0) r = 0.0;
                        if (r > 1.0) r = 1.0;

                        double g = sin(JKQTPSTATISTICS_PI/2.0*v);
                        if (g < 0.0) g = 0.0;
                        if (g > 1.0) g = 1.0;

                        double b = cos(JKQTPSTATISTICS_PI/2.0*v);
                        if (b < 0.0) b = 0.0;
                        if (b > 1.0) b = 1.0;

                        (*plut)[l]=qRgb(static_cast<int>(255.0*r), static_cast<int>(255.0*g), static_cast<int>(255.0*b));
                    }
                }
            }
            lut_used=(*plut);

        }
        else if (palette == JKQTFP_CYAN)
        {
            QRgb** plut=&lut_cyan;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                        double r = v*0.5;
                        if (r < 0.0) r = 0.0;
                        if (r > 1.0) r = 1.0;

                        double g = v;
                        if (g < 0.0) g = 0.0;
                        if (g > 1.0) g = 1.0;

                        double b = v;
                        if (b < 0.0) b = 0.0;
                        if (b > 1.0) b = 1.0;
                        (*plut)[l]=qRgb(static_cast<int>(255.0*r), static_cast<int>(255.0*g), static_cast<int>(255.0*b));
                    }
                }
            }
            lut_used=(*plut);

        }
        else if (palette == JKQTFP_TRAFFICLIGHT)
        {
            QRgb** plut=&lut_trafficlight;
            if ((*plut)==nullptr) {
                (*plut)=static_cast<QRgb*>(malloc((JKQTFastPlotter::LUTSIZE+2)*sizeof(QRgb)));
                if ((*plut)!=nullptr) {
                    for (size_t l=0; l<=JKQTFastPlotter::LUTSIZE; l++) {
                        double v=l/static_cast<double>(JKQTFastPlotter::LUTSIZE);
                        double r = (v < 0.5) ? 128.0*sin(JKQTPSTATISTICS_PI*(2.0*v-0.5))+128.0 : 255.0;
                        if (r > 255.0)
                            r = 255.0;

                        double g = (v < 0.5) ? 512.0*v+128.0 : 512.0-512.0*v;
                        if (g > 255.0)
                            g = 255.0;
                        (*plut)[l]=qRgb(static_cast<int>(r), static_cast<int>(g), 0);
                    }
                }
            }
            lut_used=(*plut);

        }

        #ifdef DEBUG_TIMING
        time_gt=timer.getTime();
        time_sum+=time_gt;
        std::cout<<"      calculated/found LUT: "<<time_gt/1000.0<<" ms\n";
        timer.start();
        #endif
        if (lut_used!=nullptr) {
            // LUT found: collor the image accordingly
            for (int j=0; j<height; ++j) {
                QRgb* line=reinterpret_cast<QRgb *>(img.scanLine(height-1-j));
                for (int i=0; i<width; ++i) {
                    int v = static_cast<int>((dbl[j*width+i]-min)/delta*static_cast<double>(JKQTFastPlotter::LUTSIZE));
                    v = (v < 0) ? 0 : ( (v > static_cast<int>(JKQTFastPlotter::LUTSIZE)) ? static_cast<int>(JKQTFastPlotter::LUTSIZE) : v);
                    line[i]=lut_used[v];
                }
            }
        } else {
            // no LUT found: paint a black image!
            img.fill(0);
        }
    }
    #ifdef DEBUG_TIMING
    time_gt=timer.getTime();
    time_sum+=time_gt;
    std::cout<<"      creating colored image: "<<time_gt/1000.0<<" ms\n";
    timer.start();
    #endif
    #ifdef DEBUG_TIMING
    time_gt=timer.getTime();
    time_sum+=time_gt;
    std::cout<<"    sum: "<<time_sum/1000.0<<" ms\n";
    timer.start();
    #endif
};

/*! \brief get list with all available palettes
    \ingroup jkqtfastplotter_tools
    \see JKQTFPimagePlot_array2image()
 */
JKQTFASTPLOTTER_LIB_EXPORT QStringList JKQTFPimagePlot_getPalettes();
/*! \brief get QIcon representing the given palette
    \ingroup jkqtfastplotter_tools
    \see JKQTFPimagePlot_array2image()
*/
JKQTFASTPLOTTER_LIB_EXPORT QIcon JKQTFPimagePlot_getPaletteIcon(int i);
/*! \brief get QIcon representing the given palette
    \ingroup jkqtfastplotter_tools
    \see JKQTFPimagePlot_array2image()
*/
JKQTFASTPLOTTER_LIB_EXPORT QIcon JKQTFPimagePlot_getPaletteIcon(JKQTFPColorPalette palette);


/*! \brief plots a given grayscale image with a given color palette
    \ingroup jkqtfastplotter_PlotItems

      - This plot may plot any 2D array of data (8-, 16-, 32-bit integer images, float and double).
      - This class also draws a color bar in the right border of the plot
    .

*/
class JKQTFASTPLOTTER_LIB_EXPORT JKQTFPimagePlot: public JKQTFPPlot {
        Q_OBJECT
    protected:
        /** \brief image to plot */
        void* image;
        /** \brief format of the image */
        JKQTFPImageFormat imageFormat;
        /** \brief width of image in pt */
        int width;
        /** \brief height of image in pt */
        int height;
        /** \brief minimum x value of the image */
        double xmin;
        /** \brief maximum x value of the image */
        double xmax;
        /** \brief minimum x value of the image */
        double ymin;
        /** \brief maximum x value of the image */
        double ymax;
        /** \brief defines the palette to use */
        JKQTFPColorPalette palette;
        /** \brief defines minimum color value */
        double colorMin;
        /** \brief defines maximum color value */
        double colorMax;
        /** \brief draw color bar */
        bool drawColorBar;
        /** \brief color bar width in pt */
        int colorBarWidth;
        /** \brief rotation of the image when plotting in units of 90 degrees (counter clock wise) */
        int rotation;
    public:


        /*! \brief class constructor

         */
        JKQTFPimagePlot(JKQTFastPlotter* parent, void* image, JKQTFPImageFormat imageFormat, int width, int height, double xmin, double xmax, double ymin, double ymax, JKQTFPColorPalette palette=JKQTFP_MATLAB) ;

        JKQTFPimagePlot(JKQTFastPlotter* parent, void* image, JKQTFPImageFormat imageFormat, int width, int height, JKQTFPColorPalette palette=JKQTFP_MATLAB);

        /** \brief draw the graph */
        virtual void drawGraph(QPainter& painter) override;



        /** \copydoc image */ 
        inline void setImage(void* __value)
        {
            if (this->image != __value) {
                this->image = __value; 
                replot(); 
            } 
        } 
        /** \copydoc image */ 
        inline void* getImage() const
        {
            return this->image; 
        }
        /** \copydoc imageFormat */ 
        inline void setImageFormat(const JKQTFPImageFormat & __value)
        {
            if (this->imageFormat != __value) {
                this->imageFormat = __value; 
                replot(); 
            } 
        } 
        /** \copydoc imageFormat */ 
        inline JKQTFPImageFormat getImageFormat() const
        {
            return this->imageFormat; 
        }
        /** \copydoc width */ 
        inline void setWidth(int __value)
        {
            if (this->width != __value) {
                this->width = __value; 
                replot(); 
            } 
        } 
        /** \copydoc width */ 
        inline int getWidth() const
        {
            return this->width; 
        }
        /** \copydoc height */ 
        inline void setHeight(int __value)
        {
            if (this->height != __value) {
                this->height = __value; 
                replot(); 
            } 
        } 
        /** \copydoc height */ 
        inline int getHeight() const
        {
            return this->height; 
        }
        /** \copydoc xmin */ 
        inline void setXmin(double __value)
        {
            if (this->xmin != __value) {
                this->xmin = __value; 
                replot(); 
            } 
        } 
        /** \copydoc xmin */ 
        inline double getXmin() const
        {
            return this->xmin; 
        }
        /** \copydoc xmax */ 
        inline void setXmax(double __value)
        {
            if (this->xmax != __value) {
                this->xmax = __value; 
                replot(); 
            } 
        } 
        /** \copydoc xmax */ 
        inline double getXmax() const
        {
            return this->xmax; 
        }
        /** \copydoc ymin */ 
        inline void setYmin(double __value)
        {
            if (this->ymin != __value) {
                this->ymin = __value; 
                replot(); 
            } 
        } 
        /** \copydoc ymin */ 
        inline double getYmin() const
        {
            return this->ymin; 
        }
        /** \copydoc ymax */ 
        inline void setYmax(double __value)
        {
            if (this->ymax != __value) {
                this->ymax = __value; 
                replot(); 
            } 
        } 
        /** \copydoc ymax */ 
        inline double getYmax() const
        {
            return this->ymax; 
        }
        /** \copydoc drawColorBar */ 
        inline void setDrawColorBar(bool __value)
        {
            if (this->drawColorBar != __value) {
                this->drawColorBar = __value; 
                replot(); 
            } 
        } 
        /** \copydoc drawColorBar */ 
        inline bool getDrawColorBar() const
        {
            return this->drawColorBar; 
        }
        /** \copydoc colorBarWidth */ 
        inline void setColorBarWidth(int __value)
        {
            if (this->colorBarWidth != __value) {
                this->colorBarWidth = __value; 
                replot(); 
            } 
        } 
        /** \copydoc colorBarWidth */ 
        inline int getColorBarWidth() const
        {
            return this->colorBarWidth; 
        }
        /** \copydoc rotation */ 
        inline int getRotation() const { 
            return this->rotation; 
        }
        /** \copydoc palette */ 
        inline JKQTFPColorPalette getPalette() const { 
            return this->palette; 
        }
        /** \copydoc colorMin */ 
        inline double getColorMin() const { 
            return this->colorMin; 
        }
        /** \copydoc colorMax */ 
        inline double getColorMax() const { 
            return this->colorMax; 
        }
        void setImage(void* image, JKQTFPImageFormat imageFormat, int width, int height) {
            this->image=image;
            this->imageFormat=imageFormat;
            this->width=width;
            this->height=height;
            replot();
        }
    public slots:
        void setRotation(int rotation) {
            if (this->rotation!=rotation) {
                this->rotation=rotation;
                replot();
            }
        }
        void setPalette(int palette) {
            if (this->palette!=palette) {
                this->palette=static_cast<JKQTFPColorPalette>(palette);
                replot();
            }
        }
        void setPalette(JKQTFPColorPalette palette) {
            if (this->palette!=palette) {
                this->palette=palette;
                replot();
            }
        }
        void setColorMin(uint32_t colorMin) {
            if (this->colorMin!=colorMin) {
                this-> colorMin= colorMin;
                replot();
            }
        }
        void setColorMax(uint32_t colorMax) {
            if (this->colorMax!=colorMax) {
                this->colorMax=colorMax;
                replot();
            }
        }
        void setColorMin(int colorMin) {
            if (this->colorMin!=colorMin) {
                this-> colorMin= colorMin;
                replot();
            }
        }
        void setColorMax(int colorMax) {
            if (this->colorMax!=colorMax) {
                this->colorMax=colorMax;
                replot();
            }
        }
        void setColorMin(double colorMin) {
            if (this->colorMin!=colorMin) {
                this-> colorMin= colorMin;
                replot();
            }
        }
        void setColorMax(double colorMax) {
            if (this->colorMax!=colorMax) {
                this->colorMax=colorMax;
                replot();
            }
        }
};






/*! \brief convert a 2D image (as 1D array) into a QImage and puts the image values into one color channel (set by \a channel).
    \ingroup jkqtfastplotter_tools

*/
template <class T>
inline void JKQTFPRGBImageOverlayPlot_array2image(T* dbl, int width, int height, QImage &img, int channel, double minColor_, double maxColor_)
{
    if (!dbl)
        return;

    T minColor=static_cast<T>(minColor_);
    T maxColor=static_cast<T>(maxColor_);

    #ifdef DEBUG_TIMING
    JKQTPHighResTimer timer;
    double time_sum=0;
    double time_gt=0;
    std::cout<<"  timing JKQTFPimagePlot_array2image:\n";
    timer.start();
    #endif
    //qDebug()<<"channel = "<<channel;
    //qDebug()<<"color range: "<<minColor<<"..."<<maxColor;
    double min = *dbl;
    double max = *dbl;
    if (minColor == maxColor) {
        for (int i=1; i<width*height; ++i)
        {
            T v=dbl[i];
            if (v < min)
                min = v;
            else if (v > max)
                max = v;
        }
    } else {
        min = minColor;
        max = maxColor;
    }
    #ifdef DEBUG_TIMING
    time_gt=timer.getTime();
    time_sum+=time_gt;
    std::cout<<"      finding min&max: "<<time_gt/1000.0<<" ms\n";
    timer.start();
    #endif
    //qDebug()<<"minColor="<<minColor<<"   maxColor="<<maxColor<<"       min="<<min<<"  max="<<max<<"\n";

    double delta=max-min;


    if (min != max) {
        // LUT found: collor the image accordingly
        if (channel==0) {
            for (int j=0; j<height; ++j) {
                QRgb* line=reinterpret_cast<QRgb *>(img.scanLine(height-1-j));
                for (int i=0; i<width; ++i) {
                    int v = trunc(double(dbl[j*width+i]-min)*255.0/delta);
                    v = (v < 0) ? 0 : ( (v > 255) ? 255 : v);
                    const QRgb l=line[i];
                    line[i]=qRgb(v,qGreen(l),qBlue(l));
                    //if (i==j) qDebug()<<dbl[j*width+i]<<v<<hex<<l<<line[i]<<dec;
                }
            }
        } else if (channel==1) {
            for (int j=0; j<height; ++j) {
                QRgb* line=reinterpret_cast<QRgb *>(img.scanLine(height-1-j));
                for (int i=0; i<width; ++i) {
                    int v = (dbl[j*width+i]-min)*255/delta;
                    v = (v < 0) ? 0 : ( (v > 255) ? 255 : v);
                    const QRgb l=line[i];
                    line[i]=qRgb(qRed(l),v,qBlue(l));
                    //if (i==j) qDebug()<<dbl[j*width+i]<<v<<hex<<l<<line[i]<<dec;
                }
            }
        } else if (channel==2) {
            for (int j=0; j<height; ++j) {
                QRgb* line=reinterpret_cast<QRgb *>(img.scanLine(height-1-j));
                for (int i=0; i<width; ++i) {
                    int v = (dbl[j*width+i]-min)*255/delta;
                    v = (v < 0) ? 0 : ( (v > 255) ? 255 : v);
                    const QRgb l=line[i];
                    line[i]=qRgb(qRed(l),qGreen(l),v);
                    //if (i==j) qDebug()<<dbl[j*width+i]<<v<<hex<<l<<line[i]<<dec;
                }
            }
        }
    }
    #ifdef DEBUG_TIMING
    time_gt=timer.getTime();
    time_sum+=time_gt;
    std::cout<<"      creating colored image: "<<time_gt/1000.0<<" ms\n";
    timer.start();

    time_gt=timer.getTime();
    time_sum+=time_gt;
    std::cout<<"    sum: "<<time_sum/1000.0<<" ms\n";
    timer.start();
    #endif
};





/*! \brief plots 1,2 or 3 given grayscale images as an overlay plot, where each channel is drawn as one color channel (e.g. red, green or blue).
    \ingroup jkqtfastplotter_PlotItems

      - This plot may plot any 2D array of data (8-, 16-, 32-bit integer images, float and double).
      - The images all have to have the same size
    .

*/
class JKQTFASTPLOTTER_LIB_EXPORT JKQTFPRGBImageOverlayPlot: public JKQTFPPlot {
        Q_OBJECT
    protected:
        /** \brief image to plot */
        void* imageRed;
        /** \brief format of the image */
        JKQTFPImageFormat imageFormatRed;
        /** \brief image to plot */
        void* imageGreen;
        /** \brief format of the image */
        JKQTFPImageFormat imageFormatGreen;
        /** \brief image to plot */
        void* imageBlue;
        /** \brief format of the image */
        JKQTFPImageFormat imageFormatBlue;
        /** \brief width of image in pt */
        int width;
        /** \brief height of image in pt */
        int height;
        /** \brief minimum x value of the image */
        double xmin;
        /** \brief maximum x value of the image */
        double xmax;
        /** \brief minimum x value of the image */
        double ymin;
        /** \brief maximum x value of the image */
        double ymax;
        /** \brief defines minimum color value */
        double colorMinRed;
        /** \brief defines maximum color value */
        double colorMaxRed;
        /** \brief defines minimum color value */
        double colorMinGreen;
        /** \brief defines maximum color value */
        double colorMaxGreen;
        /** \brief defines minimum color value */
        double colorMinBlue;
        /** \brief defines maximum color value */
        double colorMaxBlue;
        /** \brief rotation of the image when plotting in units of 90 degrees (counter clock wise) */
        int rotation;
    public:
        /*! \brief class constructor

         */
        JKQTFPRGBImageOverlayPlot(JKQTFastPlotter* parent, void* imageRed, JKQTFPImageFormat imageFormat, int width, int height, double xmin, double xmax, double ymin, double ymax) ;
        JKQTFPRGBImageOverlayPlot(JKQTFastPlotter* parent, void* imageRed, JKQTFPImageFormat imageFormat, int width, int height);
        JKQTFPRGBImageOverlayPlot(JKQTFastPlotter* parent);

        /** \brief draw the graph */
        virtual void drawGraph(QPainter& painter) override;



        /*! \brief sets the properties imageRed and imageFormatRed to the specified \a __value and \a __value2. 

            \see imageRed, imageFormatRed
         */
        inline void setImageRed (void* __value, JKQTFPImageFormat __value2)
        {
            bool set=false; 
            if (this->imageRed != __value) { 
                this->imageRed = __value; 
                set=true; 
            } 
            if (this->imageFormatRed != __value2) { 
                this->imageFormatRed = __value2; 
                set=true; 
            } 
            if (set) { 
                replot(); 
            } 
        } 
        /** \copydoc imageRed */ 
        inline void* getImageRed () const { return this->imageRed; }
        /** \copydoc imageFormatRed */
        inline JKQTFPImageFormat getImageFormatRed () const { return this->imageFormatRed; }
        /*! \brief sets the properties imageGreen and imageFormatGreen to the specified \a __value and \a __value2.

            \see imageGreen, imageFormatGreen
         */
        inline void setImageGreen (void* __value, JKQTFPImageFormat __value2)
        {
            bool set=false; 
            if (this->imageGreen != __value) { 
                this->imageGreen = __value; 
                set=true; 
            } 
            if (this->imageFormatGreen != __value2) { 
                this->imageFormatGreen = __value2; 
                set=true; 
            } 
            if (set) { 
                replot(); 
            } 
        } 
        /** \copydoc imageGreen */ 
        inline void* getImageGreen () const { return this->imageGreen; }
        /** \copydoc imageFormatGreen */
        inline JKQTFPImageFormat getImageFormatGreen () const { return this->imageFormatGreen; }
        /*! \brief sets the properties imageBlue and imageFormatBlue to the specified \a __value and \a __value2.

            \see imageBlue, imageFormatBlue
         */
         inline void setImageBlue (void* __value, JKQTFPImageFormat __value2)
        {
            bool set=false; 
            if (this->imageBlue != __value) { 
                this->imageBlue = __value; 
                set=true; 
            } 
            if (this->imageFormatBlue != __value2) { 
                this->imageFormatBlue = __value2; 
                set=true; 
            } 
            if (set) { 
                replot(); 
            } 
        } 
        /** \copydoc imageBlue */ 
        inline void* getImageBlue () const { return this->imageBlue; }
        /** \copydoc imageFormatBlue */
        inline JKQTFPImageFormat getImageFormatBlue () const { return this->imageFormatBlue; }
        /** \copydoc width */ 
        inline void setWidth(int __value)
        {
            if (this->width != __value) {
                this->width = __value; 
                replot(); 
            } 
        } 
        /** \copydoc width */ 
        inline int getWidth() const
        {
            return this->width; 
        }
        /** \copydoc height */ 
        inline void setHeight(int __value)
        {
            if (this->height != __value) {
                this->height = __value; 
                replot(); 
            } 
        } 
        /** \copydoc height */ 
        inline int getHeight() const
        {
            return this->height; 
        }
        /** \copydoc xmin */ 
        inline void setXmin(double __value)
        {
            if (this->xmin != __value) {
                this->xmin = __value; 
                replot(); 
            } 
        } 
        /** \copydoc xmin */ 
        inline double getXmin() const
        {
            return this->xmin; 
        }
        /** \copydoc xmax */ 
        inline void setXmax(double __value)
        {
            if (this->xmax != __value) {
                this->xmax = __value; 
                replot(); 
            } 
        } 
        /** \copydoc xmax */ 
        inline double getXmax() const
        {
            return this->xmax; 
        }
        /** \copydoc ymin */ 
        inline void setYmin(double __value)
        {
            if (this->ymin != __value) {
                this->ymin = __value; 
                replot(); 
            } 
        } 
        /** \copydoc ymin */ 
        inline double getYmin() const
        {
            return this->ymin; 
        }
        /** \copydoc ymax */ 
        inline void setYmax(double __value)
        {
            if (this->ymax != __value) {
                this->ymax = __value; 
                replot(); 
            } 
        } 
        /** \copydoc ymax */ 
        inline double getYmax() const
        {
            return this->ymax; 
        }
        /** \copydoc rotation */ 
        inline int getRotation() const { 
            return this->rotation; 
        }
        /** \copydoc colorMinRed */ 
        inline double getColorMinRed() const { 
            return this->colorMinRed; 
        }
        /** \copydoc colorMaxRed */ 
        inline double getColorMaxRed() const { 
            return this->colorMaxRed; 
        }
        /** \copydoc colorMinGreen */ 
        inline double getColorMinGreen() const { 
            return this->colorMinGreen; 
        }
        /** \copydoc colorMaxGreen */ 
        inline double getColorMaxGreen() const { 
            return this->colorMaxGreen; 
        }
        /** \copydoc colorMinBlue */ 
        inline double getColorMinBlue() const { 
            return this->colorMinBlue; 
        }
        /** \copydoc colorMaxBlue */ 
        inline double getColorMaxBlue() const { 
            return this->colorMaxBlue; 
        }
        void setImage(void* imageRed, JKQTFPImageFormat imageFormatRed, int width, int height);
        void setImage(void* imageRed, JKQTFPImageFormat imageFormatRed, void* imageGreen, JKQTFPImageFormat imageFormatGreen, int width, int height);
        void setImage(void* imageRed, JKQTFPImageFormat imageFormatRed, void* imageGreen, JKQTFPImageFormat imageFormatGreen, void* imageBlue, JKQTFPImageFormat imageFormatBlue, int width, int height);
        void setImage(void* imageRed, JKQTFPImageFormat imageFormatRed, int width, int height, double xmin, double xmax, double ymin, double ymax);
        void setImage(void* imageRed, JKQTFPImageFormat imageFormatRed, void* imageGreen, JKQTFPImageFormat imageFormatGreen, int width, int height, double xmin, double xmax, double ymin, double ymax);
        void setImage(void* imageRed, JKQTFPImageFormat imageFormatRed, void* imageGreen, JKQTFPImageFormat imageFormatGreen, void* imageBlue, JKQTFPImageFormat imageFormatBlue, int width, int height, double xmin, double xmax, double ymin, double ymax);
    public slots:
        inline void setRotation(int rotation) {
            if (this->rotation!=rotation) {
                this->rotation=rotation;
                replot();
            }
        }
        inline void setColorMinRed(uint32_t colorMin) {
            if (this->colorMinRed!=colorMin) {
                this-> colorMinRed= colorMin;
                replot();
            }
        }
        inline void setColorMaxRed(uint32_t colorMax) {
            if (this->colorMaxRed!=colorMax) {
                this->colorMaxRed=colorMax;
                replot();
            }
        }
        inline void setColorMinRed(int colorMin) {
            if (this->colorMinRed!=colorMin) {
                this-> colorMinRed= colorMin;
                replot();
            }
        }
        inline void setColorMaxRed(int colorMax) {
            if (this->colorMaxRed!=colorMax) {
                this->colorMaxRed=colorMax;
                replot();
            }
        }
        inline void setColorMinRed(double colorMin) {
            if (this->colorMinRed!=colorMin) {
                this-> colorMinRed= colorMin;
                replot();
            }
        }
        inline void setColorMaxRed(double colorMax) {
            if (this->colorMaxRed!=colorMax) {
                this->colorMaxRed=colorMax;
                replot();
            }
        }


        inline void setColorMinGreen(uint32_t colorMin) {
            if (this->colorMinGreen!=colorMin) {
                this-> colorMinGreen= colorMin;
                replot();
            }
        }
        inline void setColorMaxGreen(uint32_t colorMax) {
            if (this->colorMaxGreen!=colorMax) {
                this->colorMaxGreen=colorMax;
                replot();
            }
        }
        inline void setColorMinGreen(int colorMin) {
            if (this->colorMinGreen!=colorMin) {
                this-> colorMinGreen= colorMin;
                replot();
            }
        }
        inline void setColorMaxGreen(int colorMax) {
            if (this->colorMaxGreen!=colorMax) {
                this->colorMaxGreen=colorMax;
                replot();
            }
        }
        inline void setColorMinGreen(double colorMin) {
            if (this->colorMinGreen!=colorMin) {
                this-> colorMinGreen= colorMin;
                replot();
            }
        }
        inline void setColorMaxGreen(double colorMax) {
            if (this->colorMaxGreen!=colorMax) {
                this->colorMaxGreen=colorMax;
                replot();
            }
        }

        inline void setColorMinBlue(uint32_t colorMin) {
            if (this->colorMinBlue!=colorMin) {
                this-> colorMinBlue= colorMin;
                replot();
            }
        }
        inline void setColorMaxBlue(uint32_t colorMax) {
            if (this->colorMaxBlue!=colorMax) {
                this->colorMaxBlue=colorMax;
                replot();
            }
        }
        inline void setColorMinBlue(int colorMin) {
            if (this->colorMinBlue!=colorMin) {
                this-> colorMinBlue= colorMin;
                replot();
            }
        }
        inline void setColorMaxBlue(int colorMax) {
            if (this->colorMaxBlue!=colorMax) {
                this->colorMaxBlue=colorMax;
                replot();
            }
        }
        inline void setColorMinBlue(double colorMin) {
            if (this->colorMinBlue!=colorMin) {
                this-> colorMinBlue= colorMin;
                replot();
            }
        }
        inline void setColorMaxBlue(double colorMax) {
            if (this->colorMaxBlue!=colorMax) {
                this->colorMaxBlue=colorMax;
                replot();
            }
        }
};



/*! \brief plots an image overlay, i.e. a boolean image where each \c true pixel is drawn with a given color
           and the \c false pixels are transparent
    \ingroup jkqtfastplotter_PlotItems

*/
class JKQTFASTPLOTTER_LIB_EXPORT JKQTFPimageOverlayPlot: public JKQTFPPlot {
        Q_OBJECT
    public:
        enum SymbolType {
            stCircle,
            stRectangle
        };

    protected:
        /** \brief image to plot */
        bool* image;
        /** \brief width of image in pt */
        int width;
        /** \brief height of image in pt */
        int height;
        /** \brief minimum x value of the image */
        double xmin;
        /** \brief maximum x value of the image */
        double xmax;
        /** \brief minimum x value of the image */
        double ymin;
        /** \brief maximum x value of the image */
        double ymax;
        /** \brief color of the overlay pixels */
        QColor color;
        /** \brief linewidth of symbols */
        double linewidth;
        /** \brief rotation of the image when plotting in units of 90 degrees */
        int rotation;
        SymbolType symboltype;
        bool showAsSymbols;
    public:
        /*! \brief class constructor

         */
        JKQTFPimageOverlayPlot(JKQTFastPlotter* parent, bool* image, int width, int height, double xmin, double xmax, double ymin, double ymax, QColor color=QColor("red"));

        JKQTFPimageOverlayPlot(JKQTFastPlotter* parent, bool* image, int width, int height, QColor color=QColor("red"));

        /** \brief draw the graph */
        virtual void drawGraph(QPainter& painter) override;

        void setData(bool* image, int width, int height) {
            this->image=image;
            this->width=width;
            this->height=height;
            replot();
        }

        /** \copydoc image */ 
        inline bool* getImage() const { 
            return this->image; 
        }
        /** \copydoc rotation */ 
        inline int getRotation() const { 
            return this->rotation; 
        }
        /** \copydoc width */ 
        inline int getWidth() const {
            return this->width; 
        }
        /** \copydoc height */ 
        inline int getHeight() const {
            return this->height; 
        }
        /** \copydoc xmin */ 
        inline void setXmin(double __value)
        {
            if (this->xmin != __value) {
                this->xmin = __value; 
                replot(); 
            } 
        } 
        /** \copydoc xmin */ 
        inline double getXmin() const
        {
            return this->xmin; 
        }
        /** \copydoc xmax */ 
        inline void setXmax(double __value)
        {
            if (this->xmax != __value) {
                this->xmax = __value; 
                replot(); 
            } 
        } 
        /** \copydoc xmax */ 
        inline double getXmax() const
        {
            return this->xmax; 
        }
        /** \copydoc ymin */ 
        inline void setYmin(double __value)
        {
            if (this->ymin != __value) {
                this->ymin = __value; 
                replot(); 
            } 
        } 
        /** \copydoc ymin */ 
        inline double getYmin() const
        {
            return this->ymin; 
        }
        /** \copydoc ymax */ 
        inline void setYmax(double __value)
        {
            if (this->ymax != __value) {
                this->ymax = __value; 
                replot(); 
            } 
        } 
        /** \copydoc ymax */ 
        inline double getYmax() const
        {
            return this->ymax; 
        }
        /** \copydoc showAsSymbols */ 
        inline void setShowAsSymbols(bool __value)
        {
            if (this->showAsSymbols != __value) {
                this->showAsSymbols = __value; 
                replot(); 
            } 
        } 
        /** \copydoc showAsSymbols */ 
        inline bool getShowAsSymbols() const
        {
            return this->showAsSymbols; 
        }
        /** \copydoc color */ 
        inline QColor getColor() const { 
            return this->color; 
        }
    public slots:
        inline void setRotation(int rotation) {
            if (this->rotation!=rotation) {
                this->rotation=rotation;
                replot();
            }
        }
        inline void setColor(QColor color) {
            if (this->color!=color) {
                this->color=color;
                replot();
            }
        }
};



/*! \brief plot a horizontal scale bar
    \ingroup jkqtfastplotter_PlotItems

*/
class JKQTFASTPLOTTER_LIB_EXPORT JKQTFPQScaleBarXPlot: public JKQTFPPlot {
        Q_OBJECT
    public:
        enum Position {
            TopLeft=0,
            TopRight=1,
            BottomLeft=2,
            BottomRight=3
        };
    protected:
        /** \brief width of scale bar */
        double width;
        /** \brief line width of scale bar, given in pt */
        double lineWidth;
        /** \brief color of scale bar */
        QColor color;
        /** \brief scale bar label (use %1 to include value of width) */
        QString label;
        /** \brief font of scale bar */
        QFont font;
        /** \brief scale bar position */
        Position position;

    public:

        /*! \brief class constructor

         */
        explicit JKQTFPQScaleBarXPlot(JKQTFastPlotter* parent, double width=1, const QString& label=QString("%1"), QColor color=QColor("grey"), double lineWidth=2) ;

        /** \brief draw the graph */
        virtual void drawGraph(QPainter& painter) override;

        /** \copydoc width */ 
        inline void setWidth(double __value)
        {
            if (this->width != __value) {
                this->width = __value; 
                replot(); 
            } 
        } 
        /** \copydoc width */ 
        inline double getWidth() const
        {
            return this->width; 
        }
        /** \copydoc lineWidth */ 
        inline void setLineWidth(double __value)
        {
            if (this->lineWidth != __value) {
                this->lineWidth = __value; 
                replot(); 
            } 
        } 
        /** \copydoc lineWidth */ 
        inline double getLineWidth() const
        {
            return this->lineWidth; 
        }
        /** \copydoc color */ 
        inline void setColor(const QColor & __value)
        {
            if (this->color != __value) {
                this->color = __value; 
                replot(); 
            } 
        } 
        /** \copydoc color */ 
        inline QColor getColor() const
        {
            return this->color; 
        }
        /** \copydoc label */ 
        inline void setLabel(const QString & __value)
        {
            if (this->label != __value) {
                this->label = __value; 
                replot(); 
            } 
        } 
        /** \copydoc label */ 
        inline QString getLabel() const
        {
            return this->label; 
        }
        /** \copydoc font */ 
        inline void setFont(const QFont & __value)
        {
            if (this->font != __value) {
                this->font = __value; 
                replot(); 
            } 
        } 
        /** \copydoc font */ 
        inline QFont getFont() const
        {
            return this->font; 
        }
        /** \copydoc position */ 
        inline void setPosition(const Position & __value)
        {
            if (this->position != __value) {
                this->position = __value; 
                replot(); 
            } 
        } 
        /** \copydoc position */ 
        inline Position getPosition() const
        {
            return this->position; 
        }
    public slots:
        void setPosition(int pos) {
            setPosition(static_cast<Position>(pos));
        }
};




/*! \brief plot a horizontal scale bar
    \ingroup jkqtfastplotter_PlotItems

*/
class JKQTFASTPLOTTER_LIB_EXPORT JKQTFPQOverlayLinearGridPlot: public JKQTFPPlot {
        Q_OBJECT

    protected:
        /** \brief distance between grid lines */
        double width;
        /** \brief line width of grid lines, given in pt */
        double lineWidth;
        /** \brief color of the grid */
        QColor color;
        /** \brief grid line style */
        Qt::PenStyle style;
    public:

        /*! \brief class constructor

         */
        explicit JKQTFPQOverlayLinearGridPlot(JKQTFastPlotter* parent, double width=1, QColor color=QColor("grey"), double lineWidth=1, Qt::PenStyle style=Qt::DashLine) ;

        /** \brief draw the graph */
        virtual void drawGraph(QPainter& painter) override;

        /** \copydoc width */ 
        inline void setWidth(double __value)
        {
            if (this->width != __value) {
                this->width = __value; 
                replot(); 
            } 
        } 
        /** \copydoc width */ 
        inline double getWidth() const
        {
            return this->width; 
        }
        /** \copydoc lineWidth */ 
        inline void setLineWidth(double __value)
        {
            if (this->lineWidth != __value) {
                this->lineWidth = __value; 
                replot(); 
            } 
        } 
        /** \copydoc lineWidth */ 
        inline double getLineWidth() const
        {
            return this->lineWidth; 
        }
        /** \copydoc color */ 
        inline void setColor(const QColor & __value)
        {
            if (this->color != __value) {
                this->color = __value; 
                replot(); 
            } 
        } 
        /** \copydoc color */ 
        inline QColor getColor() const
        {
            return this->color; 
        }
        /** \copydoc style */ 
        inline void setStyle(Qt::PenStyle  __value)
        {
            if (this->style != __value) {
                this->style = __value; 
                replot(); 
            } 
        } 
        /** \copydoc style */ 
        inline Qt::PenStyle getStyle() const
        {
            return this->style; 
        }

};
#endif // JKQTFASTPLOTTER_H