JKQtPlotter/lib/jkqtplotter/jkqtpbaseplotter.cpp

/*
    Copyright (c) 2008-2020 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/>.
*/


#include <QFileInfo>
#if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
#include <QtGlobal>
#include <QtWidgets>
#else
#include <QtGui>
#endif
#include <QSvgGenerator>
#include <QDebug>
#include <QElapsedTimer>
#include <QPrintPreviewWidget>
#include <QDialog>
#include "jkqtplotter/jkqtpbaseplotter.h"
#include "jkqtplotter/gui/jkqtpgraphsmodel.h"
#include "jkqtplotter/gui/jkqtpenhancedtableview.h"
#include <QPrinter>
#include <QPrinterInfo>
#include <QPrintDialog>
#include <QGridLayout>
#include <QCheckBox>
#include <QDialogButtonBox>
#include <QApplication>
#include <QFileDialog>
#include <QInputDialog>
#include <QVBoxLayout>
#ifdef QFWIDLIB_LIBRARY
#  include "qftools.h"
#endif
#include "jkqtplotter/graphs/jkqtpboxplot.h"
#include "jkqtplotter/graphs/jkqtpbarchart.h"
#include "jkqtplotter/graphs/jkqtpfilledcurve.h"
#include "jkqtplotter/graphs/jkqtpspecialline.h"
#include "jkqtplotter/graphs/jkqtpimpulses.h"
#include "jkqtplotter/graphs/jkqtpscatter.h"
#include "jkqtplotter/graphs/jkqtpgeometric.h"
#include "jkqtplotter/graphs/jkqtpimage.h"
#include "jkqtplotter/graphs/jkqtpimagergb.h"

static QString globalUserSettigsFilename="";
static QString globalUserSettigsPrefix="";
static QList<JKQTPPaintDeviceAdapter*> jkqtpPaintDeviceAdapters;
static QList<JKQTPSaveDataAdapter*> jkqtpSaveDataAdapters;



void initJKQTBasePlotterResources()
{
    Q_INIT_RESOURCE(jkqtpbaseplotter);
    initJKQTMathTextResources();
}


void JKQTBasePlotter::setDefaultJKQTBasePrinterUserSettings(QString userSettigsFilename, const QString& userSettigsPrefix)
{
    globalUserSettigsFilename=userSettigsFilename;
    globalUserSettigsPrefix=userSettigsPrefix;
}

void JKQTBasePlotter::registerPaintDeviceAdapter(JKQTPPaintDeviceAdapter *adapter)
{
    jkqtpPaintDeviceAdapters.append(adapter);
}

void JKQTBasePlotter::deregisterPaintDeviceAdapter(JKQTPPaintDeviceAdapter *adapter)
{
    if (jkqtpPaintDeviceAdapters.contains(adapter)) jkqtpPaintDeviceAdapters.removeAll(adapter);
}

bool JKQTBasePlotter::registerSaveDataAdapter(JKQTPSaveDataAdapter *adapter)
{
    if (adapter){
        QString format=adapter->getFilter();
        for (int i=0; i<jkqtpSaveDataAdapters.size(); i++) {
            if (jkqtpSaveDataAdapters[i] && jkqtpSaveDataAdapters[i]->getFilter()==format) {
                return false;
            }
        }
        jkqtpSaveDataAdapters.append(adapter);
        return true;
    }
    return false;
}

bool JKQTBasePlotter::deregisterSaveDataAdapter(JKQTPSaveDataAdapter *adapter)
{
    if (jkqtpSaveDataAdapters.contains(adapter)) jkqtpSaveDataAdapters.removeAll(adapter);
    return true;
}

JKQTBasePlotter::textSizeData JKQTBasePlotter::getTextSizeDetail(const QFont &fm, const QString &text, QPainter& painter)
{
    return getTextSizeDetail(fm.family(), fm.pointSizeF(), text, painter);
}

JKQTBasePlotter::textSizeData JKQTBasePlotter::getTextSizeDetail(const QString &fontName, double fontSize, const QString &text, QPainter& painter)
{
    JKQTBasePlotter::textSizeKey  dh(fontName, fontSize, text, painter.device());
    if (s_TextSizeDataCache.contains(dh)) return s_TextSizeDataCache[dh];
    JKQTBasePlotter::textSizeData d;
    mathText.setFontRomanOrSpecial(fontName);
    mathText.setFontSize(fontSize);
    mathText.parse(text);
    mathText.getSizeDetail(painter, d.width, d.ascent, d.descent, d.strikeoutPos);
    s_TextSizeDataCache[dh]=d;
    //qDebug()<<"+++ textsize hash size: "<<tbrh.size();
    return d;
}

void JKQTBasePlotter::getTextSizeDetail(const QString &fontName, double fontSize, const QString &text, QPainter &painter, double &width, double &ascent, double &descent, double &strikeoutPos)
{
    if (!text.isEmpty()) {
        JKQTBasePlotter::textSizeData d=getTextSizeDetail(fontName, fontSize, text, painter);
        width=d.width;
        ascent=d.ascent;
        descent=d.descent;
        strikeoutPos=d.strikeoutPos;
    } else {
        width=0;
        ascent=0;
        descent=0;
        strikeoutPos=0;
    }
}

void JKQTBasePlotter::getTextSizeDetail(const QFont &fm, const QString &text, QPainter &painter, double &width, double &ascent, double &descent, double &strikeoutPos)
{
    getTextSizeDetail(fm.family(), fm.pointSizeF(), text, painter, width, ascent, descent, strikeoutPos);
}

QSizeF JKQTBasePlotter::getTextSizeSize(const QFont &fm, const QString &text, QPainter &painter)
{
    return getTextSizeSize(fm.family(), fm.pointSizeF(), text, painter);
}

QSizeF JKQTBasePlotter::getTextSizeSize(const QString &fontName, double fontSize, const QString &text, QPainter &painter)
{
    if (text.isEmpty()) return QSizeF(0,0);
    JKQTBasePlotter::textSizeData d=getTextSizeDetail(fontName, fontSize, text, painter);
    return QSizeF(d.width, d.ascent+d.descent);
}


// define this to get timing information about painting on the debug output
//#define JKQTBP_DEBUGTIMING
#undef JKQTBP_DEBUGTIMING

/**************************************************************************************************************************
 * JKQTBasePlotter
 **************************************************************************************************************************/
JKQTBasePlotter::JKQTBasePlotter(bool datastore_internal, QObject* parent, JKQTPDatastore* datast):
    QObject(parent), plotterStyle(JKQTPGetSystemDefaultBaseStyle()), m_plotsModel(nullptr), xAxis(nullptr), yAxis(nullptr)
{
    initJKQTBasePlotterResources();
    dataColumnsListWidget=nullptr;
    printMagnification=1.0;
    printZoomFactor=1.0;
    printSizeX_Millimeter=1.0;
    printSizeY_Millimeter=1.0;
    paintMagnification=1.0;
    printDoUpdate=true;

    emitPlotSignals=true;
    masterPlotterX=nullptr;
    masterPlotterY=nullptr;
    masterSynchronizeWidth=false;
    masterSynchronizeHeight=false;
    fontSizePrintMultiplier=1;
    lineWidthPrintMultiplier=1;
    fontSizeMultiplier=1;
    lineWidthMultiplier=1;
    userSettigsFilename=globalUserSettigsFilename;
    userSettigsPrefix=globalUserSettigsPrefix;
    currentPrinter=QPrinterInfo::defaultPrinter().printerName();

    if (datastore_internal) {
      datastore=new JKQTPDatastore();
      datastoreInternal=true;
    } else {
      datastore=datast;
      datastoreInternal=false;
    }

    // some fonts that are know to deliver bad rendering quality
    mathText.addReplacementFont("MS Shell Dlg 2", "Arial");
    mathText.addReplacementFont("MS Shell Dlg", "Arial");
    mathText.addReplacementFont("MS Sans Serif", "Arial");
    mathText.addReplacementFont("MS Serif", "Times New Roman");
    mathText.addReplacementFont("MS Sans Serif Standard", "Arial");
    mathText.addReplacementFont("MS Serif Standard", "Times New Roman");

    xAxis=new JKQTPHorizontalAxis(this);
    yAxis=new JKQTPVerticalAxis(this);
    m_plotsModel=new JKQTPGraphsModel(this);
    connect(this, SIGNAL(plotUpdated()), m_plotsModel, SLOT(plotUpdated()));


    emitSignals=false;


    setWidgetSize(400,300);
    internalPlotWidth=400;
    internalPlotHeight=300;
    initSettings();

    emitSignals=true;

    actSavePlot=new QAction(QIcon(":/JKQTPlotter/jkqtp_saveplot.png"), tr("Save Plot"), this);
    actSavePlot->setToolTip(tr("Save plot as image file (PDF, PS; PNG, ...)."));
    actSaveData=new QAction(QIcon(":/JKQTPlotter/jkqtp_savedata.png"), tr("Save Data"), this);
    actSaveData->setToolTip(tr("Save Data of the plot as file (CSV, ...)."));
    actCopyData=new QAction(QIcon(":/JKQTPlotter/jkqtp_copydata.png"), tr("Copy Data"), this);
    actCopyData->setToolTip(tr("Copy Data of the plot to the clipboard to be pasted into Excel etc."));
    actCopyMatlab=new QAction(QIcon(":/JKQTPlotter/jkqtp_copymatlab.png"), tr("Copy Data to Matlab"), this);
    actCopyMatlab->setToolTip(tr("Copy Data of the plot to the clipboard in Matlab script format."));
    actCopyPixelImage=new QAction(QIcon(":/JKQTPlotter/jkqtp_copyimg.png"), tr("Copy Image"), this);
    actCopyPixelImage->setToolTip(tr("Copy the plot as a pixel image to the clipboard"));


    actSavePDF=new QAction(QIcon(":/JKQTPlotter/jkqtp_savepdf.png"), tr("Save P&DF"), this);
    actSavePDF->setToolTip(tr("Save as PDF"));
    //toolbar->addAction(actSavePDF);
    actSaveSVG=new QAction(QIcon(":/JKQTPlotter/jkqtp_savesvg.png"), tr("Save S&VG"), this);
    actSaveSVG->setToolTip(tr("Save as Scalable Vector Graphics (SVG)"));
    //toolbar->addAction(actSaveSVG);
    actSavePix=new QAction(QIcon(":/JKQTPlotter/jkqtp_savepix.png"), tr("Save &Image"), this);
    actSavePix->setToolTip(tr("Save as Pixel Image (PNG, JPEG, TIFF ...)"));
    //toolbar->addAction(actSavePix);

    actPrint=new QAction(QIcon(":/JKQTPlotter/jkqtp_print.png"), tr("&Print"), this);
    actPrint->setToolTip("Print");
    //toolbar->addSeparator();
    actSaveCSV=new QAction(QIcon(":/JKQTPlotter/jkqtp_savecsv.png"), tr("Save &CSV"), this);
    actSaveCSV->setToolTip(tr("Save the data which is used for the plot as Comma Separated Values (CSV)"));
    //toolbar->addAction(actSaveCSV);
    //toolbar->addSeparator();
    actZoomAll=new QAction(QIcon(":/JKQTPlotter/jkqtp_zoomall.png"), tr("Zoom &All"), this);
    actZoomAll->setToolTip(tr("Zoom to view all data"));
    actZoomIn=new QAction(QIcon(":/JKQTPlotter/jkqtp_zoomin.png"), tr("Zoom &In"), this);
    actZoomIn->setToolTip(tr("Zoom in around the center of the plot"));
    actZoomOut=new QAction(QIcon(":/JKQTPlotter/jkqtp_zoomout.png"), tr("Zoom &Out"), this);
    actZoomOut->setToolTip(tr("Zoom out"));

    actShowPlotData=new QAction(QIcon(":/JKQTPlotter/jkqtp_showplotdata.png"), tr("&Show Plot Data"), this);
    actShowPlotData->setToolTip(tr("Opens a dialog that contains all data used for the plot in a table."));



    connect(actSavePlot,   SIGNAL(triggered()), this, SLOT(saveImage()));
    connect(actSaveData,   SIGNAL(triggered()), this, SLOT(saveData()));
    connect(actCopyData,   SIGNAL(triggered()), this, SLOT(copyData()));
    connect(actCopyPixelImage,   SIGNAL(triggered()), this, SLOT(copyPixelImage()));
    connect(actCopyMatlab,   SIGNAL(triggered()), this, SLOT(copyDataMatlab()));
    connect(actShowPlotData,   SIGNAL(triggered()), this, SLOT(showPlotData()));

    connect(actSavePDF,    SIGNAL(triggered()), this, SLOT(saveAsPDF()));
    connect(actSaveSVG,    SIGNAL(triggered()), this, SLOT(saveAsSVG()));
    connect(actSavePix,    SIGNAL(triggered()), this, SLOT(saveAsPixelImage()));

    connect(actPrint,      SIGNAL(triggered()), this, SLOT(print()));
    connect(actSaveCSV,    SIGNAL(triggered()), this, SLOT(saveAsCSV()));
    connect(actZoomAll,    SIGNAL(triggered()), this, SLOT(zoomToFit()));
    connect(actZoomIn,     SIGNAL(triggered()), this, SLOT(zoomIn()));
    connect(actZoomOut,    SIGNAL(triggered()), this, SLOT(zoomOut()));

    setWidgetSize(400,300);

}

JKQTBasePlotter::~JKQTBasePlotter(){
    clearGraphs(false);
    if (datastoreInternal && datastore!=nullptr) delete datastore;
    delete xAxis;
    delete yAxis;
}

void JKQTBasePlotter::setGrid(bool val) {
    xAxis->setDrawGrid(val);
    yAxis->setDrawGrid(val);
}

void JKQTBasePlotter::setGridColor(QColor color)
{
    xAxis->setGridColor(color);
    yAxis->setGridColor(color);
}

void JKQTBasePlotter::setMinorGridColor(QColor color)
{
    xAxis->setMinorGridColor(color);
    yAxis->setMinorGridColor(color);
}

void JKQTBasePlotter::setGridWidth(double __value)
{
    xAxis->setGridWidth(__value);
    yAxis->setGridWidth(__value);
}

void JKQTBasePlotter::setMinorGridWidth(double __value)
{
    xAxis->setMinorGridWidth(__value);
    yAxis->setMinorGridWidth(__value);
}
void JKQTBasePlotter::setGridStyle(Qt::PenStyle __value)
{
    xAxis->setGridStyle(__value);
    yAxis->setGridStyle(__value);
}

void JKQTBasePlotter::setMinorGridStyle(Qt::PenStyle __value)
{
    xAxis->setMinorGridStyle(__value);
    yAxis->setMinorGridStyle(__value);
}

void JKQTBasePlotter::setShowZeroAxes(bool showX, bool showY) {
    getXAxis()->setShowZeroAxis(showX);
    getYAxis()->setShowZeroAxis(showY);
}

void JKQTBasePlotter::setShowZeroAxes(bool showXY) {
    setShowZeroAxes(showXY,showXY);
}

void JKQTBasePlotter::useExternalDatastore(JKQTPDatastore* newStore){
    if (datastoreInternal && datastore!=nullptr) {
        delete datastore;
        datastore=nullptr;
    }
    datastore=newStore;
    datastoreInternal=false;
};

void JKQTBasePlotter::useAsInternalDatastore(JKQTPDatastore* newStore){
    if (datastoreInternal && datastore!=nullptr) {
        delete datastore;
        datastore=nullptr;
    }
    datastore=newStore;
    datastoreInternal=true;
    if (emitPlotSignals) emit plotUpdated();
}

void JKQTBasePlotter::useInternalDatastore(){
    if (!datastoreInternal) {
        datastore=new JKQTPDatastore();
        datastoreInternal=true;
    }
    if (emitPlotSignals) emit plotUpdated();
}

void JKQTBasePlotter::forceInternalDatastore(){
    if (datastoreInternal && datastore!=nullptr) {
        delete datastore;
        datastore=nullptr;
    }
    datastore=new JKQTPDatastore();
    datastoreInternal=true;
    if (emitPlotSignals) emit plotUpdated();
}

bool JKQTBasePlotter::isEmittingSignalsEnabled() const {
    return this->emitSignals;
}

void JKQTBasePlotter::initSettings() {
    useClipping=true;
    //doDrawing=true;

    maintainAspectRatio=false;
    aspectRatio=1;

    maintainAxisAspectRatio=false;
    axisAspectRatio=1;

    gridPrinting=false;
    gridPrintingList.clear();
    gridPrintingCurrentX=0;
    gridPrintingCurrentY=0;


    internalPlotBorderLeft_notIncludingOutsidePlotSections=internalPlotBorderLeft=plotterStyle.plotBorderLeft;
    internalPlotBorderRight_notIncludingOutsidePlotSections=internalPlotBorderRight=plotterStyle.plotBorderRight;
    internalPlotBorderTop_notIncludingOutsidePlotSections=internalPlotBorderTop=plotterStyle.plotBorderTop;
    internalPlotBorderBottom_notIncludingOutsidePlotSections=internalPlotBorderBottom=plotterStyle.plotBorderBottom;

    //plotWidth=700;
    //plotHeight=150;

    xAxis->setRange(-10, 10);
    yAxis->setRange(-10, 10);


    plotLabel="";

    if (emitPlotSignals) emit plotUpdated();
}






void JKQTBasePlotter::zoomIn(double factor) {
    //std::cout<<(double)event->delta()/120.0<<":   "<<factor<<std::endl;
    double xmin=p2x(static_cast<long>(round(static_cast<double>(internalPlotWidth)/2.0-static_cast<double>(internalPlotWidth)/(2.0*factor))));
    double xmax=p2x(static_cast<long>(round(static_cast<double>(internalPlotWidth)/2.0+static_cast<double>(internalPlotWidth)/(2.0*factor))));
    double ymin=p2y(static_cast<long>(round(static_cast<double>(internalPlotHeight)/2.0+static_cast<double>(internalPlotHeight)/(2.0*factor))));
    double ymax=p2y(static_cast<long>(round(static_cast<double>(internalPlotHeight)/2.0-static_cast<double>(internalPlotHeight)/(2.0*factor))));


    xAxis->setRange(xmin, xmax);
    yAxis->setRange(ymin, ymax);
    if (emitPlotSignals) emit plotUpdated();
    if (emitSignals) emit zoomChangedLocally(xAxis->getMin(), xAxis->getMax(), yAxis->getMin(), yAxis->getMax(), this);
}

void JKQTBasePlotter::zoomOut(double factor) {
    zoomIn(1.0/factor);
}

void JKQTBasePlotter::setMaintainAspectRatio(bool value) {
    maintainAspectRatio=value;
    redrawPlot();
}

void JKQTBasePlotter::setMaintainAxisAspectRatio(bool value) {
    maintainAxisAspectRatio=value;
    redrawPlot();
}

void JKQTBasePlotter::zoom(double nxmin, double nxmax, double nymin, double nymax){
    // only react on double clicks inside event
    double xmin=nxmin;
    double xmax=nxmax;
    double ymin=nymin;
    double ymax=nymax;

    xAxis->setRange(xmin, xmax);
    yAxis->setRange(ymin, ymax);
    if (emitPlotSignals) emit plotUpdated();
    if (emitSignals) emit zoomChangedLocally(xAxis->getMin(), xAxis->getMax(), yAxis->getMin(), yAxis->getMax(), this);
}

void JKQTBasePlotter::setWidgetSize(int wid, int heigh) {
    widgetWidth=wid;
    widgetHeight=heigh;

    if (emitPlotSignals) emit plotUpdated();
}

int JKQTBasePlotter::getWidth() {
    return widgetWidth;
}

int JKQTBasePlotter::getHeight() {
    return widgetHeight;
}

double JKQTBasePlotter::getXMin() const {
    return xAxis->getMin();
}

double JKQTBasePlotter::getXMax() const {
    return xAxis->getMax();
}

double JKQTBasePlotter::getYMin() const {
    return yAxis->getMin();
}

double JKQTBasePlotter::getYMax() const {
    return yAxis->getMax();
}

double JKQTBasePlotter::getAbsoluteXMin() const {
    return xAxis->getAbsoluteMin();
}

double JKQTBasePlotter::getAbsoluteXMax() const {
    return xAxis->getAbsoluteMax();
}

double JKQTBasePlotter::getAbsoluteYMin() const {
    return yAxis->getAbsoluteMin();
}

double JKQTBasePlotter::getAbsoluteYMax() const {
    return yAxis->getAbsoluteMax();
}

void JKQTBasePlotter::addGridPrintingPlotter(size_t x, size_t y, JKQTBasePlotter *plotter) {
    JKQTPGridPrintingItem i;
    i.x=x;
    i.y=y;
    i.plotter=plotter;
    gridPrintingList.push_back(i);
}

void JKQTBasePlotter::clearGridPrintingPlotters() {
    gridPrintingList.clear();
}


void JKQTBasePlotter::setWidgetWidth(int wid) {
    widgetWidth=wid;
    if (emitPlotSignals) emit plotUpdated();
}

void JKQTBasePlotter::setWidgetHeight(int heigh) {
    widgetHeight=heigh;
    if (emitPlotSignals) emit plotUpdated();
}

void JKQTBasePlotter::saveSettings(QSettings& settings, const QString& group) const{

    plotterStyle.saveSettings(settings, group);

    settings.setValue(group+"apect_ratio", aspectRatio);
    settings.setValue(group+"maintain_apect_ratio", maintainAspectRatio);
    settings.setValue(group+"axis_apect_ratio", axisAspectRatio);
    settings.setValue(group+"maintain_axis_apect_ratio", maintainAxisAspectRatio);


    mathText.saveSettings(settings, group+"math_text.");

    xAxis->saveSettings(settings, group+"xaxis_");
    yAxis->saveSettings(settings, group+"yaxis_");

    saveUserSettings();

}

const JKQTBasePlotterStyle &JKQTBasePlotter::getCurrentPlotterStyle() const
{
    return plotterStyle;
}

void JKQTBasePlotter::setCurrentPlotterStyle(const JKQTBasePlotterStyle &style)
{
    plotterStyle=style;
    propagateStyle();
}

void JKQTBasePlotter::propagateStyle() {
    bool old=emitPlotSignals;
    emitPlotSignals=false;
    xAxis->setCurrentAxisStyle(plotterStyle.xAxisStyle);
    yAxis->setCurrentAxisStyle(plotterStyle.yAxisStyle);
    for (int i=0; i<graphs.size(); i++) {
        JKQTPColorPaletteStyleAndToolsMixin* palTools=dynamic_cast<JKQTPColorPaletteStyleAndToolsMixin*>(graphs[i]);
        if (palTools) {
            palTools->getColorBarRightAxis()->setCurrentAxisStyle(plotterStyle.rightColorbarAxisStyle);
            palTools->getColorBarTopAxis()->setCurrentAxisStyle(plotterStyle.topColorbarAxisStyle);
        }
        JKQTPMathImage* matImg=dynamic_cast<JKQTPMathImage*>(graphs[i]);
        if (matImg) {
            matImg->getColorBarRightAxis()->setCurrentAxisStyle(plotterStyle.rightColorbarAxisStyle);
            matImg->getColorBarTopAxis()->setCurrentAxisStyle(plotterStyle.topColorbarAxisStyle);
            matImg->getModifierColorBarRightAxis()->setCurrentAxisStyle(plotterStyle.rightColorbarAxisStyle);
            matImg->getModifierColorBarTopAxis()->setCurrentAxisStyle(plotterStyle.topColorbarAxisStyle);
        }
        JKQTPRGBMathImage* matImgRGB=dynamic_cast<JKQTPRGBMathImage*>(graphs[i]);
        if (matImgRGB) {
            matImgRGB->getColorBarRightAxis()->setCurrentAxisStyle(plotterStyle.rightColorbarAxisStyle);
            matImgRGB->getColorBarTopAxis()->setCurrentAxisStyle(plotterStyle.topColorbarAxisStyle);
            matImgRGB->getColorBarRightAxisG()->setCurrentAxisStyle(plotterStyle.rightColorbarAxisStyle);
            matImgRGB->getColorBarTopAxisG()->setCurrentAxisStyle(plotterStyle.topColorbarAxisStyle);
            matImgRGB->getColorBarRightAxisB()->setCurrentAxisStyle(plotterStyle.rightColorbarAxisStyle);
            matImgRGB->getColorBarTopAxisB()->setCurrentAxisStyle(plotterStyle.topColorbarAxisStyle);
        }
    }
    emitPlotSignals=old;
    if (emitPlotSignals) emit plotUpdated();
}

void JKQTBasePlotter::loadCurrentPlotterStyle(const QSettings &settings, const QString &group)
{
    plotterStyle.loadSettings(settings, group);
    propagateStyle();
}

void JKQTBasePlotter::saveCurrentPlotterStyle(QSettings &settings, const QString &group) const
{
    plotterStyle.saveSettings(settings, group);
}

void JKQTBasePlotter::loadUserSettings(const QSettings &settings, const QString& group) {
    currentSaveDirectory=settings.value(group+"currentSaveDirectory", currentSaveDirectory).toString();
    currentFileFormat=settings.value(group+"currentFileFormat", currentFileFormat).toString();
    currentDataFileFormat=settings.value(group+"currentDataFileFormat", currentFileFormat).toString();
    printZoomFactor=settings.value(group+"printZoomFactor", printZoomFactor).toDouble();
    printSizeX_Millimeter=settings.value(group+"printSizeX", printSizeX_Millimeter).toDouble();
    printSizeY_Millimeter=settings.value(group+"printSizeY", printSizeY_Millimeter).toDouble();
    printMagnification=settings.value(group+"printMagnification", printMagnification).toDouble();
    printSetAbsolutePageSize=settings.value(group+"printSetAbsoluteSize", printSetAbsolutePageSize).toBool();
    printAspect=settings.value(group+"printAspect", printAspect).toDouble();
    fontSizePrintMultiplier=settings.value(group+"fontSizePrintMultiplier", fontSizePrintMultiplier).toDouble();
    lineWidthPrintMultiplier=settings.value(group+"lineWidthPrintMultiplier", lineWidthPrintMultiplier).toDouble();
    printKeepAspect=settings.value(group+"printKeepAspect", printKeepAspect).toBool();
    exportUnitInMM=settings.value(group+"exportUnitInMM", exportUnitInMM).toBool();
    currentPrinter=settings.value(group+"printer", currentPrinter).toString();
    int count=settings.value(group+"selections/count", 0).toInt();
    getDataColumnsByUserSaved.clear();
    for (int i=0; i<count; i++) {
        const QString itg=QString("item%1").arg(i);
        QString n=settings.value(group+"selections/"+itg+"/name", "").toString();
        QStringList item=settings.value(group+"selections/"+itg+"/items", QStringList()).toStringList();
        if (!n.isEmpty()) {
            getDataColumnsByUserSaved[n]=item;
        }
    }
}

void JKQTBasePlotter::saveUserSettings(QSettings &settings, const QString& group) const {
    settings.setValue(group+"printer", currentPrinter);
    //qDebug()<<settings.fileName()<<group<<currentSaveDirectory<<QDir(currentSaveDirectory).absolutePath();
    settings.setValue(group+"currentSaveDirectory", QDir(currentSaveDirectory).absolutePath());
    settings.setValue(group+"currentFileFormat",currentFileFormat);
    settings.setValue(group+"currentDataFileFormat",currentDataFileFormat);
    settings.setValue(group+"printZoomFactor", printZoomFactor);
    settings.setValue(group+"printSizeX", printSizeX_Millimeter);
    settings.setValue(group+"printSizeY", printSizeY_Millimeter);
    settings.setValue(group+"printMagnification", printMagnification);
    settings.setValue(group+"printSetAbsoluteSize", printSetAbsolutePageSize);
    settings.setValue(group+"printAspect", printAspect);
    settings.setValue(group+"printKeepAspect", printKeepAspect);
    settings.setValue(group+"fontSizePrintMultiplier", fontSizePrintMultiplier);
    settings.setValue(group+"lineWidthPrintMultiplier", lineWidthPrintMultiplier);
    settings.setValue(group+"exportUnitInMM", exportUnitInMM);
    //settings.setValue(group+"", );

    settings.beginGroup(group+"selections");
    QStringList keys=getDataColumnsByUserSaved.keys();
    settings.setValue("count", keys.size());
    for (int i=0; i<keys.size(); i++) {
        settings.beginGroup(QString("item%1").arg(i));
        settings.setValue("name", keys[i]);
        settings.setValue("items", getDataColumnsByUserSaved[keys[i]]);
        settings.endGroup();
    }
    settings.endGroup();
}

void JKQTBasePlotter::loadSettings(const QSettings &settings, const QString& group){
    QString g=group+"/";
    if (group.isEmpty()) g="";

    plotterStyle.loadSettings(settings, group);
    propagateStyle();

    aspectRatio=settings.value(g+"apect_ratio", aspectRatio).toDouble();
    maintainAspectRatio=settings.value(g+"maintain_apect_ratio", maintainAspectRatio).toBool();
    axisAspectRatio=settings.value(g+"axis_apect_ratio", axisAspectRatio).toDouble();
    maintainAxisAspectRatio=settings.value(g+"maintain_axis_apect_ratio", maintainAxisAspectRatio).toBool();



    mathText.loadSettings(settings, g+"math_text/");

    xAxis->loadSettings(settings, g+"xaxis_");
    yAxis->loadSettings(settings, g+"yaxis_");

    loadUserSettings();

    if (emitPlotSignals) emit plotUpdated();
}



void JKQTBasePlotter::setXY(double xminn, double xmaxx, double yminn, double ymaxx){
    xAxis->setRange(xminn, xmaxx);
    yAxis->setRange(yminn, ymaxx);
    if (maintainAxisAspectRatio) {
        if (xAxis->isLinearAxis() && yAxis->isLinearAxis()) {
            const double mid=(yAxis->getMax()+yAxis->getMin())/2.0;
            const double w=fabs(xmaxx-xminn)/axisAspectRatio;
            yAxis->setRange(mid-w/2.0, mid+w/2.0);
        } else if (xAxis->isLogAxis() && yAxis->isLogAxis()) {
            const double mid=(log(yAxis->getMax())+log(yAxis->getMin()))/2.0;
            const double w=fabs(log(xmaxx)-log(xminn))/axisAspectRatio;
            yAxis->setRange(exp(mid-w/2.0), exp(mid+w/2.0));
        }
    }
    if (emitSignals) emit zoomChangedLocally(xAxis->getMin(), xAxis->getMax(), yAxis->getMin(), yAxis->getMax(), this);
}

void JKQTBasePlotter::setX(double xminn, double xmaxx){
    xAxis->setRange(xminn, xmaxx);
    if (maintainAxisAspectRatio) {
        if (xAxis->isLinearAxis() && yAxis->isLinearAxis()) {
            const double mid=(yAxis->getMax()+yAxis->getMin())/2.0;
            const double w=fabs(xmaxx-xminn)/axisAspectRatio;
            yAxis->setRange(mid-w/2.0, mid+w/2.0);
        } else if (xAxis->isLogAxis() && yAxis->isLogAxis()) {
            const double mid=(log(yAxis->getMax())+log(yAxis->getMin()))/2.0;
            const double w=fabs(log(xmaxx)-log(xminn))/axisAspectRatio;
            yAxis->setRange(exp(mid-w/2.0), exp(mid+w/2.0));
        }
    }
    if (emitSignals) emit zoomChangedLocally(xAxis->getMin(), xAxis->getMax(), yAxis->getMin(), yAxis->getMax(), this);
}

void JKQTBasePlotter::setY(double yminn, double ymaxx) {
    yAxis->setRange(yminn, ymaxx);
    if (maintainAxisAspectRatio) {
        if (xAxis->isLinearAxis() && yAxis->isLinearAxis()) {
            const double mid=(xAxis->getMax()+xAxis->getMin())/2.0;
            const double w=fabs(ymaxx-yminn)*axisAspectRatio;
            xAxis->setRange(mid-w/2.0, mid+w/2.0);
        } else if (xAxis->isLogAxis() && yAxis->isLogAxis()) {
            const double mid=(log(xAxis->getMax())+log(xAxis->getMin()))/2.0;
            const double w=fabs(log(ymaxx)-log(yminn))/axisAspectRatio;
            xAxis->setRange(exp(mid-w/2.0), exp(mid+w/2.0));
        }
    }
    if (emitSignals) emit zoomChangedLocally(xAxis->getMin(), xAxis->getMax(), yAxis->getMin(), yAxis->getMax(), this);
}

void JKQTBasePlotter::setAbsoluteX(double xminn, double xmaxx) {
    xAxis->setAbsoluteRange(xminn, xmaxx);
    if (emitSignals) emit zoomChangedLocally(xAxis->getMin(), xAxis->getMax(), yAxis->getMin(), yAxis->getMax(), this);
}

void JKQTBasePlotter::setAbsoluteY(double yminn, double ymaxx) {
    yAxis->setAbsoluteRange(yminn, ymaxx);
    if (emitSignals) emit zoomChangedLocally(xAxis->getMin(), xAxis->getMax(), yAxis->getMin(), yAxis->getMax(), this);
}

void JKQTBasePlotter::setAbsoluteXY(double xminn, double xmaxx, double yminn, double ymaxx) {
    xAxis->setAbsoluteRange(xminn, xmaxx);
    yAxis->setAbsoluteRange(yminn, ymaxx);
    if (emitSignals) emit zoomChangedLocally(xAxis->getMin(), xAxis->getMax(), yAxis->getMin(), yAxis->getMax(), this);
}

void JKQTBasePlotter::calcPlotScaling(JKQTPEnhancedPainter& painter){
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaat(QString("JKQTBasePlotter[%1]::calcPlotScaling()").arg(objectName()));
#endif

    //qDebug()<<"this="<<this<<"  --> calcPlotScaling()";

    if (emitSignals) emit beforePlotScalingRecalculate();
    //qDebug()<<"start JKQTBasePlotter::calcPlotScaling";
    // if the key is plotted outside , then we have to add place for it (i.e. change the plotBorders
    internalPlotBorderBottom=plotterStyle.plotBorderBottom;
    internalPlotBorderLeft=plotterStyle.plotBorderLeft;
    internalPlotBorderRight=plotterStyle.plotBorderRight;
    internalPlotBorderTop=plotterStyle.plotBorderTop;
    internalTitleHeight=0;


    if (!plotLabel.isEmpty()) {
        QSizeF s=getTextSizeSize(plotterStyle.plotLabelFontName, plotterStyle.plotLabelFontSize*fontSizeMultiplier, plotLabel, painter);
        internalPlotBorderTop+=s.height()*1.2;
        internalTitleHeight=s.height()*1.2;

    }

    double keyWidth, keyHeight;
    QFont f=painter.font();
    f.setFamily(plotterStyle.defaultFontName);
    f.setPointSizeF(plotterStyle.keyStyle.fontSize*fontSizeMultiplier);
    QFontMetricsF kfm(f);
    getKeyExtent(painter, &keyWidth, &keyHeight);
    internalPlotKeyBorderTop=0;
    internalPlotKeyBorderBottom=0;
    internalPlotKeyBorderLeft=0;
    internalPlotKeyBorderRight=0;
    if (plotterStyle.keyStyle.position==JKQTPKeyOutsideTopRight) {
        internalPlotKeyBorderTop=keyHeight+2*plotterStyle.keyStyle.yMargin*kfm.width('X')+ceil(2*plotterStyle.keyStyle.frameWidth)+plotterStyle.keyStyle.yOffset*kfm.width('X')+2;
        internalPlotBorderTop = internalPlotBorderTop + internalPlotKeyBorderTop;
    } else if (plotterStyle.keyStyle.position==JKQTPKeyOutsideTopLeft) {
        internalPlotKeyBorderTop=keyHeight+2*plotterStyle.keyStyle.yMargin*kfm.width('X')+ceil(2*plotterStyle.keyStyle.frameWidth)+plotterStyle.keyStyle.yOffset*kfm.width('X')+2;
        internalPlotBorderTop = internalPlotBorderTop + internalPlotKeyBorderTop;
    } else if (plotterStyle.keyStyle.position==JKQTPKeyOutsideLeftTop) {
        internalPlotKeyBorderLeft=keyWidth+2*plotterStyle.keyStyle.xMargin*kfm.width('X')+ceil(2*plotterStyle.keyStyle.frameWidth)+plotterStyle.keyStyle.xOffset*kfm.width('X')+2;
        internalPlotBorderLeft = internalPlotBorderLeft + internalPlotKeyBorderLeft;
    } else if (plotterStyle.keyStyle.position==JKQTPKeyOutsideLeftBottom) {
        internalPlotKeyBorderLeft=keyWidth+2*plotterStyle.keyStyle.xMargin*kfm.width('X')+ceil(2*plotterStyle.keyStyle.frameWidth)+plotterStyle.keyStyle.xOffset*kfm.width('X')+2;
        internalPlotBorderLeft = internalPlotBorderLeft + internalPlotKeyBorderLeft;
    } else if (plotterStyle.keyStyle.position==JKQTPKeyOutsideBottomRight) {
        internalPlotKeyBorderBottom=keyHeight+2*plotterStyle.keyStyle.yMargin*kfm.width('X')+ceil(2*plotterStyle.keyStyle.frameWidth)+plotterStyle.keyStyle.yOffset*kfm.width('X')+2;
        internalPlotBorderBottom = internalPlotBorderBottom + internalPlotKeyBorderBottom;
    } else if (plotterStyle.keyStyle.position==JKQTPKeyOutsideBottomLeft) {
        internalPlotKeyBorderBottom=keyHeight+2*plotterStyle.keyStyle.yMargin*kfm.width('X')+ceil(2*plotterStyle.keyStyle.frameWidth)+plotterStyle.keyStyle.yOffset*kfm.width('X')+2;
        internalPlotBorderBottom = internalPlotBorderBottom + internalPlotKeyBorderBottom;
    } else if (plotterStyle.keyStyle.position==JKQTPKeyOutsideRightTop) {
        internalPlotKeyBorderRight = keyWidth+2*plotterStyle.keyStyle.xMargin*kfm.width('X')+ceil(2*plotterStyle.keyStyle.frameWidth)+plotterStyle.keyStyle.xOffset*kfm.width('X')+2;
        internalPlotBorderRight = internalPlotBorderRight + internalPlotKeyBorderRight;
    } else if (plotterStyle.keyStyle.position==JKQTPKeyOutsideRightBottom) {
        internalPlotKeyBorderRight = keyWidth+2*plotterStyle.keyStyle.xMargin*kfm.width('X')+ceil(2*plotterStyle.keyStyle.frameWidth)+plotterStyle.keyStyle.xOffset*kfm.width('X')+2;
        internalPlotBorderRight = internalPlotBorderRight + internalPlotKeyBorderRight;
    }



    /*if (displayMousePosition) {
        QFontMetrics fm=fontMetrics();
        QString test="<EFBFBD>Aquator";
        int labelHeight=fm.size(Qt::TextSingleLine, test).height()*1.5;
        //if (mousePosLabel!=nullptr) labelHeight=mousePosLabel->height();
        internalPlotBorderTop=internalPlotBorderTop+(labelHeight-plotBorderTop)*1.1;
    }*/

    // read additional size required for coordinate axes
    QSizeF s=xAxis->getSize1(painter);
    internalPlotBorderBottom+=s.height();
    s=xAxis->getSize2(painter);
    internalPlotBorderTop+=s.height();

    s=yAxis->getSize1(painter);
    internalPlotBorderLeft+=s.width();
    s=yAxis->getSize2(painter);
    internalPlotBorderRight+=s.width();

    internalPlotBorderTop_notIncludingOutsidePlotSections=internalPlotBorderTop;
    internalPlotBorderLeft_notIncludingOutsidePlotSections=internalPlotBorderLeft;
    internalPlotBorderBottom_notIncludingOutsidePlotSections=internalPlotBorderBottom;
    internalPlotBorderRight_notIncludingOutsidePlotSections=internalPlotBorderRight;





    // read additional space required by graphs
    for (int i=0; i<graphs.size(); i++) {
        if (graphs[i]->isVisible()) {
            int leftSpace, rightSpace, topSpace, bottomSpace;
            graphs[i]->getOutsideSize(painter, leftSpace, rightSpace, topSpace, bottomSpace);
            internalPlotBorderBottom+=bottomSpace;
            internalPlotBorderTop+=topSpace;
            internalPlotBorderLeft+=leftSpace;
            internalPlotBorderRight+=rightSpace;
        }
    }

    //qDebug()<<"  end JKQTBasePlotter::calcPlotScaling";


    // synchronize to a master-plotter
    if (masterPlotterX) {
        if (masterSynchronizeWidth) {
            internalPlotBorderLeft=masterPlotterX->internalPlotBorderLeft;
            internalPlotBorderRight=masterPlotterX->internalPlotBorderRight;
        }
    }
    if (masterPlotterY) {
        if (masterSynchronizeHeight) {
            internalPlotBorderTop=masterPlotterY->internalPlotBorderTop;
            internalPlotBorderBottom=masterPlotterY->internalPlotBorderBottom;
        }
    }

    // first we calculate the width and height of the plot from the widget dimensions and
    // the supplied border sizes
    internalPlotWidth=jkqtp_roundTo<int>(static_cast<double>(widgetWidth)/paintMagnification-internalPlotBorderLeft-internalPlotBorderRight);
    internalPlotHeight=jkqtp_roundTo<int>(static_cast<double>(widgetHeight)/paintMagnification-internalPlotBorderTop-internalPlotBorderBottom);


    ////////////////////////////////////////////////////////////////////
    // ENSURE ASPECT RATIO (if activated)
    ////////////////////////////////////////////////////////////////////
    if (maintainAspectRatio && (!xAxis->isLogAxis()) && (!xAxis->isLogAxis())) {
        double currRatio=static_cast<double>(internalPlotWidth)/static_cast<double>(internalPlotHeight);
        double newPlotWidth=internalPlotWidth;
        double newPlotHeight=internalPlotHeight;
        double dx=0;
        double dy=0;
        if (jkqtp_approximatelyUnequal(currRatio,aspectRatio)) {
            if (aspectRatio>=currRatio) {
                newPlotWidth=aspectRatio*static_cast<double>(internalPlotHeight);
            } else {
                newPlotHeight=static_cast<double>(internalPlotWidth)/aspectRatio;
            }
            dx=internalPlotWidth-newPlotWidth;
            dy=internalPlotHeight-newPlotHeight;
            if (dx<0) {
                newPlotWidth=internalPlotWidth;
                newPlotHeight=static_cast<double>(internalPlotWidth)/aspectRatio;
            } else if (dy<0) {
                newPlotWidth=aspectRatio*static_cast<double>(internalPlotHeight);
                newPlotHeight=internalPlotHeight;
            }
            dx=internalPlotWidth-newPlotWidth;
            dy=internalPlotHeight-newPlotHeight;
            if ((dx<0)||(dy<0)) {
                newPlotWidth=internalPlotWidth;
                newPlotHeight=internalPlotHeight;
            }
        }
        //if (newPlotWidth>widgetWidth-internalPlotBorderLeft-internalPlotBorderRight) newPlotWidth=widgetWidth-internalPlotBorderLeft-internalPlotBorderRight;
        //if (newPlotHeight>widgetHeight-internalPlotBorderTop-internalPlotBorderBottom) newPlotHeight=widgetHeight-internalPlotBorderTop-internalPlotBorderBottom;
        dx=internalPlotWidth-newPlotWidth;
        dy=internalPlotHeight-newPlotHeight;
        internalPlotBorderBottom+=dy/2.0;
        internalPlotBorderTop+=dy/2.0;
        internalPlotBorderLeft+=dx/2.0;
        internalPlotBorderRight+=dx/2.0;
        internalPlotWidth=jkqtp_roundTo<int>(static_cast<double>(widgetWidth)/paintMagnification-internalPlotBorderLeft-internalPlotBorderRight);
        internalPlotHeight=jkqtp_roundTo<int>(static_cast<double>(widgetHeight)/paintMagnification-internalPlotBorderTop-internalPlotBorderBottom);
    }


    xAxis->calcPlotScaling(true);
    yAxis->calcPlotScaling(true);

    ////////////////////////////////////////////////////////////////////
    // ENSURE ASPECT RATIO OF PLOT 1x1 PIXELS (if activated)
    ////////////////////////////////////////////////////////////////////
    if (maintainAxisAspectRatio && (!xAxis->isLogAxis()) && (!xAxis->isLogAxis())) {
        double cplotWidth=fabs(xAxis->getMax()-xAxis->getMin());
        double newPlotWidth=cplotWidth;
        double xmid=(xAxis->getMax()+xAxis->getMin())/2.0;
        double cplotHeight=fabs(yAxis->getMax()-yAxis->getMin());
        double newPlotHeight=cplotHeight;
        double ymid=(yAxis->getMax()+yAxis->getMin())/2.0;
        double currRatio=fabs(cplotWidth/cplotHeight);
        if (jkqtp_approximatelyUnequal(currRatio,axisAspectRatio)) {
            //if (axisAspectRatio<=currRatio) {
                newPlotWidth=axisAspectRatio*cplotHeight;
            //} else {
            //    newPlotHeight=cplotWidth/axisAspectRatio;
            //}
        }
        xAxis->setRange(xmid-newPlotWidth/2.0, xmid+newPlotWidth/2.0);
        yAxis->setRange(ymid-newPlotHeight/2.0, ymid+newPlotHeight/2.0);
        xAxis->calcPlotScaling(true);
        yAxis->calcPlotScaling(true);
    }


    //if (emitPlotSignals) emit plotScalingRecalculated();
    emit plotScalingRecalculated();
}


void JKQTBasePlotter::drawSystemGrid(JKQTPEnhancedPainter& painter) {
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaaot("JKQTBasePlotter::drawSystemGrid");
#endif
    //qDebug()<<"start JKQTBasePlotter::drawSystemGrid";
    xAxis->drawGrids(painter);
    yAxis->drawGrids(painter);
    //qDebug()<<"  end JKQTBasePlotter::drawSystemGrid";
}

void JKQTBasePlotter::drawSystemXAxis(JKQTPEnhancedPainter& painter) {
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaaot("JKQTBasePlotter::drawSystemXAxis");
#endif
    //qDebug()<<"start JKQTBasePlotter::drawSystemXAxis";
    xAxis->drawAxes(painter);
    //qDebug()<<"  end JKQTBasePlotter::drawSystemXAxis";
}

void JKQTBasePlotter::drawSystemYAxis(JKQTPEnhancedPainter& painter) {
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaaot("JKQTBasePlotter::drawSystemYAxis");
#endif
    //qDebug()<<"start JKQTBasePlotter::drawSystemYAxis";
    yAxis->drawAxes(painter);
    //qDebug()<<"  end JKQTBasePlotter::drawSystemYAxis";
}


JKQTBasePlotter::JKQTPPen JKQTBasePlotter::getPlotStyle(int i) const{
    int colorI=-1;
    int styleI=0;
    int symbolI=0;
    int brushI=0;
    for (int k=0; k<=i; k++) {
        colorI++;
        if (colorI>=plotterStyle.defaultGraphColors.size()) {
            styleI++;
            brushI++;
            colorI=0;
            if (styleI>=plotterStyle.defaultGraphPenStyles.size()) styleI=0;
            if (brushI>=plotterStyle.defaultGraphFillStyles.size()) brushI=0;
        }
        symbolI++;
        if (symbolI>=plotterStyle.defaultGraphSymbols.size()) {
            symbolI=0;
        }
    }
    JKQTPPen p;
    //std::cout<<"plotstyle "<<i<<std::endl;
    //std::cout<<"color "<<colorI<<std::endl;
    //std::cout<<"style "<<styleI<<std::endl;
    p.setColor(plotterStyle.defaultGraphColors[colorI]);
    p.setFillColor(JKQTPGetDerivedColor(plotterStyle.graphFillColorDerivationMode, p.color()));
    p.setErrorLineColor(JKQTPGetDerivedColor(plotterStyle.graphErrorColorDerivationMode, p.color()));
    p.setErrorFillColor(JKQTPGetDerivedColor(plotterStyle.graphErrorFillColorDerivationMode, p.errorColor()));
    p.setWidthF(qMax(JKQTPlotterDrawingTools::ABS_MIN_LINEWIDTH, plotterStyle.defaultGraphWidth));
    p.setErrorLineWidth(qMax(JKQTPlotterDrawingTools::ABS_MIN_LINEWIDTH, plotterStyle.defaultGraphWidth));
    p.setSymbolSize(qMax(JKQTPlotterDrawingTools::ABS_MIN_LINEWIDTH, plotterStyle.defaultGraphSymbolSize));
    p.setSymbolFillColor(JKQTPGetDerivedColor(plotterStyle.graphFillColorDerivationMode, p.color()));
    p.setSymbolLineWidthF(qMax(JKQTPlotterDrawingTools::ABS_MIN_LINEWIDTH, plotterStyle.defaultGraphSymbolLineWidth));
    p.setStyle(plotterStyle.defaultGraphPenStyles[styleI]);
    p.setSymbolType(plotterStyle.defaultGraphSymbols[symbolI]);
    p.setFillStyle(plotterStyle.defaultGraphFillStyles[brushI]);
    p.setErrorFillStyle(plotterStyle.defaultGraphFillStyles[brushI]);
    return p;
}

int JKQTBasePlotter::getNextStyle() {
    int res=0;
    while (usedStyles.contains(res)) res++;
    //std::cout<<res<<std::endl;
    usedStyles.push_back(res);
    return res;
};

void JKQTBasePlotter::drawKey(JKQTPEnhancedPainter& painter) {
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaaot("JKQTBasePlotter::plotKey");
#endif
    //qDebug()<<"start JKQTBasePlotter::plotKey";

    QFont kf(plotterStyle.defaultFontName, 10);
    kf.setPointSizeF(plotterStyle.keyStyle.fontSize*fontSizeMultiplier);
    QFontMetricsF kfm(kf);

    // get the size of the key and if keyWidth>0 && keyHeight>0 draw the frame and the contents
    double keyWidth=0;
    double keyHeight=0;
    getKeyExtent(painter, &keyWidth, &keyHeight);
    double keyRectangleWidth=keyWidth+2.0*plotterStyle.keyStyle.xMargin*kfm.width('X')+2.0*plotterStyle.keyStyle.frameWidth*lineWidthPrintMultiplier;
    double keyRectangleHeight=keyHeight+2.0*plotterStyle.keyStyle.yMargin*kfm.width('X')+2.0*plotterStyle.keyStyle.frameWidth*lineWidthPrintMultiplier;

    if ((keyWidth>0) && (keyHeight>0)) {
        // key position
        //double x0,y0; // Position without plotterStyle.keyStyle.xOffset/plotterStyle.keyStyle.yOffset
        //double x,y; // position of the key rectangle (=x0+plotterStyle.keyStyle.xOffset, y0+plotterStyle.keyStyle.yOffset)

        // default: inside top-right
        double x0=internalPlotBorderLeft+internalPlotWidth-keyRectangleWidth;
        double x=x0-plotterStyle.keyStyle.xOffset*kfm.width('X');
        double y0=internalPlotBorderTop;
        double y=y0+plotterStyle.keyStyle.yOffset*kfm.width('X');

        switch(plotterStyle.keyStyle.position) {
            case JKQTPKeyOutsideTopRight:
                x0=internalPlotBorderLeft+internalPlotWidth+internalPlotBorderRight-keyRectangleWidth;
                x=x0-plotterStyle.keyStyle.xOffset*kfm.width('X');
                y0=internalTitleHeight;
                y=y0+plotterStyle.keyStyle.yOffset*kfm.width('X');
                break;

            case JKQTPKeyOutsideTopLeft:
                x0=internalPlotBorderLeft;
                x=x0+plotterStyle.keyStyle.xOffset*kfm.width('X');
                y0=internalTitleHeight;
                y=y0+plotterStyle.keyStyle.yOffset*kfm.width('X');
                break;

            case JKQTPKeyOutsideBottomRight:
                x0=internalPlotBorderLeft+internalPlotWidth-keyRectangleWidth;
                x=x0-plotterStyle.keyStyle.xOffset*kfm.width('X');
                y0=internalPlotBorderTop+internalPlotHeight+internalPlotBorderBottom-keyRectangleHeight;
                y=y0-plotterStyle.keyStyle.yOffset*kfm.width('X');
                break;
            case JKQTPKeyOutsideBottomLeft:
                x0=internalPlotBorderLeft;
                x=x0+plotterStyle.keyStyle.xOffset*kfm.width('X');
                y0=internalPlotBorderTop+internalPlotHeight+internalPlotBorderBottom-keyRectangleHeight;
                y=y0-plotterStyle.keyStyle.yOffset*kfm.width('X');
                break;



            case JKQTPKeyOutsideRightTop:
                x0=internalPlotBorderLeft+internalPlotWidth+internalPlotBorderRight-keyRectangleWidth;
                x=x0-plotterStyle.keyStyle.xOffset*kfm.width('X');
                y0=internalPlotBorderTop;
                y=y0+plotterStyle.keyStyle.yOffset*kfm.width('X');
                break;
            case JKQTPKeyOutsideRightBottom:
                x0=internalPlotBorderLeft+internalPlotWidth+internalPlotBorderRight-keyRectangleWidth;
                x=x0-plotterStyle.keyStyle.xOffset*kfm.width('X');
                y0=internalPlotBorderTop+internalPlotHeight-keyRectangleHeight;
                y=y0-plotterStyle.keyStyle.yOffset*kfm.width('X');
                break;

            case JKQTPKeyOutsideLeftTop:
                x0=0;
                x=x0+plotterStyle.keyStyle.xOffset*kfm.width('X');
                y0=internalPlotBorderTop;
                y=y0+plotterStyle.keyStyle.yOffset*kfm.width('X');
                break;
            case JKQTPKeyOutsideLeftBottom:
                x0=0;
                x=x0+plotterStyle.keyStyle.xOffset*kfm.width('X');
                y0=internalPlotBorderTop+internalPlotHeight-keyRectangleHeight;
                y=y0-plotterStyle.keyStyle.yOffset*kfm.width('X');
                break;




            case JKQTPKeyInsideBottomRight:
                x0=internalPlotBorderLeft+internalPlotWidth-keyRectangleWidth;
                x=x0-plotterStyle.keyStyle.xOffset*kfm.width('X');
                y0=internalPlotBorderTop+internalPlotHeight-keyRectangleHeight;
                y=y0-plotterStyle.keyStyle.yOffset*kfm.width('X');
                break;
            case JKQTPKeyInsideBottomLeft:
                x0=internalPlotBorderLeft;
                x=x0+plotterStyle.keyStyle.xOffset*kfm.width('X');
                y0=internalPlotBorderTop+internalPlotHeight-keyRectangleHeight;
                y=y0-plotterStyle.keyStyle.yOffset*kfm.width('X');
                break;
            case JKQTPKeyInsideTopLeft:
                x0=internalPlotBorderLeft;
                x=x0+plotterStyle.keyStyle.xOffset*kfm.width('X');
                y0=internalPlotBorderTop;
                y=y0+plotterStyle.keyStyle.yOffset*kfm.width('X');
                break;
            case JKQTPKeyInsideTopRight:
                x0=internalPlotBorderLeft+internalPlotWidth-keyRectangleWidth;
                x=x0-plotterStyle.keyStyle.xOffset*kfm.width('X');
                y0=internalPlotBorderTop;
                y=y0+plotterStyle.keyStyle.yOffset*kfm.width('X');
                break;
        }
        QRectF rectKey;
        {
            // save old brushes and pens
            painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
            QPen pf=painter.pen();
            pf.setColor(plotterStyle.keyStyle.frameColor);
            pf.setWidthF(qMax(JKQTPlotterDrawingTools::ABS_MIN_LINEWIDTH, pt2px(painter, plotterStyle.keyStyle.frameWidth*lineWidthMultiplier)));
            pf.setStyle(Qt::SolidLine);

            painter.setBrush(plotterStyle.keyStyle.backgroundBrush);
            if (!plotterStyle.keyStyle.frameVisible) {
                painter.setPen(Qt::NoPen);
            } else {
                painter.setPen(pf);
            }

            rectKey=QRectF(x,y,keyRectangleWidth, keyRectangleHeight);
            if (plotterStyle.keyStyle.frameRounding<=0) {
                painter.drawRect(rectKey);
            } else {
                painter.drawRoundedRect(rectKey, pt2px(painter, plotterStyle.keyStyle.frameRounding), pt2px(painter, plotterStyle.keyStyle.frameRounding));
            }
            y=y+plotterStyle.keyStyle.yMargin*kfm.width('X')+plotterStyle.keyStyle.frameWidth*lineWidthMultiplier/2.0;
            x=x+plotterStyle.keyStyle.xMargin*kfm.width('X')+plotterStyle.keyStyle.frameWidth*lineWidthMultiplier/2.0;

            painter.setPen(pf);

            if (useClipping) {
                QRegion cregion(static_cast<int>(x),static_cast<int>(y),static_cast<int>(keyRectangleWidth), static_cast<int>(keyRectangleHeight));
                painter.setClipping(true);
                painter.setClipRegion(cregion);
                painter.setClipping(true);
            }

            drawKeyContents(painter, x, y, keyWidth, keyHeight);

            if (useClipping) painter.setClipping(false);
        }

        if (plotterStyle.debugShowRegionBoxes) {
            painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
            QPen p("orange");
            QColor col=p.color(); col.setAlphaF(0.8); p.setColor(col);
            p.setWidthF(plotterStyle.debugRegionLineWidth);
            p.setStyle(Qt::DashLine);
            painter.setPen(p);
            painter.setBrush(QBrush(QColor(Qt::transparent)));
            painter.drawRect(rectKey);
            p.setStyle(Qt::SolidLine);
            painter.setPen(p);
            painter.drawLine(QLineF(x0,y0,rectKey.x(), rectKey.y()));

        }



    }
    //qDebug()<<"  end JKQTBasePlotter::plotKey";
}



void JKQTBasePlotter::drawPlot(JKQTPEnhancedPainter& painter, bool showOverlays) {
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaaot("JKQTBasePlotter::paintPlot");
#endif
    //qDebug()<<"start JKQTBasePlotter::paintPlot";
    // draw background
    {
        painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
        painter.setPen(Qt::NoPen);
        if (plotterStyle.widgetBackgroundBrush!=QBrush(Qt::transparent)) painter.fillRect(QRectF(0,0,widgetWidth/paintMagnification, widgetHeight/paintMagnification), plotterStyle.widgetBackgroundBrush);
    }
    QRectF rPlotBack(internalPlotBorderLeft, internalPlotBorderTop, internalPlotWidth, internalPlotHeight);
    painter.setRenderHint(JKQTPEnhancedPainter::NonCosmeticDefaultPen, true);
    painter.setRenderHint(JKQTPEnhancedPainter::Antialiasing, plotterStyle.useAntiAliasingForSystem);
    painter.setRenderHint(JKQTPEnhancedPainter::TextAntialiasing, plotterStyle.useAntiAliasingForText);
    if (plotterStyle.plotFrameVisible) {
        painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
        QPen p(plotterStyle.plotFrameColor);
        p.setWidthF(qMax(JKQTPlotterDrawingTools::ABS_MIN_LINEWIDTH, pt2px(painter, plotterStyle.plotFrameWidth*lineWidthMultiplier)));
        painter.setPen(p);
        painter.setBrush(plotterStyle.plotBackgroundBrush);
        if (plotterStyle.plotFrameRounding<=0) {
            painter.drawRect(rPlotBack);
        } else {
            painter.drawRoundedRect(rPlotBack, pt2px(painter, plotterStyle.plotFrameRounding), pt2px(painter, plotterStyle.plotFrameRounding));
        }

    } else {
        painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
        painter.setBrush(plotterStyle.plotBackgroundBrush);
        painter.setPen(Qt::NoPen);
        if (plotterStyle.plotFrameRounding<=0) {
            painter.drawRect(rPlotBack);
        } else {
            painter.drawRoundedRect(rPlotBack, pt2px(painter, plotterStyle.plotFrameRounding), pt2px(painter, plotterStyle.plotFrameRounding));
        }

    }

    drawSystemGrid(painter);

    if (!plotLabel.isEmpty()) {
        mathText.setFontSize(plotterStyle.plotLabelFontSize*fontSizeMultiplier);
        mathText.setFontRomanOrSpecial(plotterStyle.plotLabelFontName);

        mathText.parse(plotLabel);
        double a=0,d=0,so=0,w=0;
        getTextSizeDetail(plotterStyle.plotLabelFontName,plotterStyle.plotLabelFontSize*fontSizeMultiplier,plotLabel, painter, w, a, d, so);
        QSizeF s=QSizeF(w, a+d);
        mathText.draw(painter, internalPlotBorderLeft+(internalPlotWidth-s.width())/2.0,plotterStyle.plotBorderTop+a*1.2);
        if (plotterStyle.debugShowRegionBoxes) {
            painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
            QPen p("blue");
            QColor col=p.color(); col.setAlphaF(0.8); p.setColor(col);
            p.setWidthF(plotterStyle.debugRegionLineWidth);
            painter.setBrush(QBrush(QColor(Qt::transparent)));
            painter.setPen(p);
            painter.drawRect(QRectF(internalPlotBorderLeft, plotterStyle.plotBorderTop, internalPlotWidth, s.height()));

        }
    }

    painter.setRenderHint(JKQTPEnhancedPainter::Antialiasing, plotterStyle.useAntiAliasingForGraphs);
    painter.setRenderHint(JKQTPEnhancedPainter::TextAntialiasing, plotterStyle.useAntiAliasingForText);
    {
        painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
        drawGraphs(painter);
    }

    painter.setRenderHint(JKQTPEnhancedPainter::Antialiasing, plotterStyle.useAntiAliasingForSystem);
    painter.setRenderHint(JKQTPEnhancedPainter::TextAntialiasing, plotterStyle.useAntiAliasingForText);

    drawSystemXAxis(painter);
    drawSystemYAxis(painter);
    painter.setRenderHint(JKQTPEnhancedPainter::Antialiasing, plotterStyle.useAntiAliasingForGraphs);
    painter.setRenderHint(JKQTPEnhancedPainter::TextAntialiasing, plotterStyle.useAntiAliasingForText);
    if (plotterStyle.keyStyle.visible) drawKey(painter);
    painter.setRenderHint(JKQTPEnhancedPainter::TextAntialiasing, plotterStyle.useAntiAliasingForText);
    if (showOverlays) drawOverlaysWithHints(painter);

    if (plotterStyle.debugShowRegionBoxes) {
        painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
        QPen p("red");
        QColor col=p.color(); col.setAlphaF(0.8); p.setColor(col);
        p.setWidthF(plotterStyle.debugRegionLineWidth);
        p.setStyle(Qt::DashLine);
        painter.setPen(p);
        painter.setBrush(QBrush(QColor(Qt::transparent)));
        painter.drawRect(QRectF(internalPlotBorderLeft, internalPlotBorderTop, internalPlotWidth, internalPlotHeight));
        p.setColor(QColor("maroon"));
        col=p.color(); col.setAlphaF(0.8); p.setColor(col);
        p.setWidthF(plotterStyle.debugRegionLineWidth);
        p.setStyle(Qt::DotLine);
        painter.setPen(p);
        painter.drawRect(QRectF(internalPlotBorderLeft_notIncludingOutsidePlotSections, internalPlotBorderTop_notIncludingOutsidePlotSections, widgetWidth-internalPlotBorderLeft_notIncludingOutsidePlotSections-internalPlotBorderRight_notIncludingOutsidePlotSections, widgetHeight-internalPlotBorderTop_notIncludingOutsidePlotSections-internalPlotBorderBottom_notIncludingOutsidePlotSections));
        p.setColor(QColor("yellow"));
        col=p.color(); col.setAlphaF(0.8); p.setColor(col);
        p.setWidthF(plotterStyle.debugRegionLineWidth);
        p.setStyle(Qt::SolidLine);
        painter.setPen(p);
        painter.drawRect(0, 0, widgetWidth, widgetHeight);

    }

    //qDebug()<<"  end JKQTBasePlotter::paintPlot";
}

void JKQTBasePlotter::drawOverlaysWithHints(JKQTPEnhancedPainter &painter) {
    painter.setRenderHint(JKQTPEnhancedPainter::NonCosmeticDefaultPen, true);
    painter.setRenderHint(JKQTPEnhancedPainter::Antialiasing, plotterStyle.useAntiAliasingForGraphs);
    painter.setRenderHint(JKQTPEnhancedPainter::TextAntialiasing, plotterStyle.useAntiAliasingForText);
    painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaaot("JKQTBasePlotter::drawOverlaysWithHints");
#endif
    if (overlays.isEmpty()) return;
    if (useClipping) {
        QRegion cregion(static_cast<int>(internalPlotBorderLeft), static_cast<int>(internalPlotBorderTop), static_cast<int>(internalPlotWidth), static_cast<int>(internalPlotHeight));
        painter.setClipping(true);
        painter.setClipRegion(cregion);
    }

    for (int j=0; j<overlays.size(); j++) {
        JKQTPOverlayElement* g=overlays[j];
        if (g->isVisible()) g->draw(painter);
    }

    if (useClipping) {
        painter.setClipping(false);
    }

}

void JKQTBasePlotter::gridPrintingCalc() {
    gridPrintingRows.clear();
    gridPrintingColumns.clear();
    if (!gridPrinting) {
        gridPrintingSize=QSize(static_cast<int>(widgetWidth/paintMagnification), static_cast<int>(widgetHeight/paintMagnification));
        gridPrintingRows.push_back(static_cast<size_t>(widgetHeight/paintMagnification));
        gridPrintingColumns.push_back(static_cast<size_t>(widgetWidth/paintMagnification));
    } else {
        // first find min and max columns/rows
        size_t cmin=gridPrintingCurrentX;
        size_t cmax=gridPrintingCurrentX;
        size_t rmin=gridPrintingCurrentY;
        size_t rmax=gridPrintingCurrentY;
        for (int i=0; i< gridPrintingList.size(); i++) {
            size_t c=gridPrintingList[i].x;
            size_t r=gridPrintingList[i].y;
            if (c<cmin) cmin=c;
            if (c>cmax) cmax=c;
            if (r<rmin) rmin=r;
            if (r>rmax) rmax=r;
        }
        // fill gridPrintingRows and gridPrintingColumns
        for (size_t i=0; i<=cmax; i++) { gridPrintingColumns.push_back(0); }
        for (size_t i=0; i<=rmax; i++) { gridPrintingRows.push_back(0); }
        gridPrintingColumns[static_cast<int>(gridPrintingCurrentX)]=static_cast<size_t>(widgetWidth/paintMagnification);
        gridPrintingRows[static_cast<int>(gridPrintingCurrentY)]=static_cast<size_t>(widgetHeight/paintMagnification);
        for (int i=0; i< gridPrintingList.size(); i++) {
            size_t cw=static_cast<size_t>(gridPrintingList[i].plotter->widgetWidth/paintMagnification);
            size_t ch=static_cast<size_t>(gridPrintingList[i].plotter->widgetHeight/paintMagnification);
            size_t c=gridPrintingList[i].x;
            size_t r=gridPrintingList[i].y;
            if (cw>gridPrintingColumns[static_cast<int>(c)]) gridPrintingColumns[static_cast<int>(c)]=cw;
            if (ch>gridPrintingRows[static_cast<int>(r)]) gridPrintingRows[static_cast<int>(r)]=ch;
        }
        int w=0;
        int h=0;
        for (int i=0; i<gridPrintingColumns.size(); i++) { w+=static_cast<int>(gridPrintingColumns[i]); };
        for (int i=0; i<gridPrintingRows.size(); i++) { h+= static_cast<int>(gridPrintingRows[i]); };
        gridPrintingSize=QSize(w, h);
    }
}

void JKQTBasePlotter::gridPaint(JKQTPEnhancedPainter& painter, QSizeF pageRect, bool showOverlays, bool scaleIfTooLarge, bool scaleIfTooSmall) {
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaaot("JKQTBasePlotter::gridPaint");
#endif
    calcPlotScaling(painter);

    if (!gridPrinting) {
        double scale=static_cast<double>(pageRect.width())/static_cast<double>(widgetWidth)*paintMagnification;
        if (/*(scale*static_cast<double>(widgetWidth)>static_cast<double>(pageRect.width())) ||*/ (scale*static_cast<double>(widgetHeight)/paintMagnification>static_cast<double>(pageRect.height())) && scaleIfTooLarge) {
            scale=static_cast<double>(pageRect.height())/static_cast<double>(widgetHeight)*paintMagnification;
        }
        if (!scaleIfTooSmall && scale>1.0) scale=1.0;
        if (!scaleIfTooLarge && !scaleIfTooSmall) scale=1.0;
#ifdef SHOW_JKQTPLOTTER_DEBUG
        qDebug()<<"gridPaint: scale="<<scale;
#endif
        painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
        // scale the plot so it fits on the page
        painter.scale(scale, scale);
        drawPlot(painter, showOverlays);

    } else {

        QList<double> fsm, lwm, pm;
        QList<QBrush> backg;
        for (int i=0; i< gridPrintingList.size(); i++) {
            fsm.append(gridPrintingList[i].plotter->getFontSizeMultiplier());
            lwm.append(gridPrintingList[i].plotter->getLineWidthMultiplier());
            pm.append(gridPrintingList[i].plotter->getPaintMagnification());
            backg.append(gridPrintingList[i].plotter->getExportBackgroundBrush());
            gridPrintingList[i].plotter->setFontSizeMultiplier(fontSizeMultiplier);
            gridPrintingList[i].plotter->setLineWidthMultiplier(lineWidthMultiplier);
            gridPrintingList[i].plotter->setPaintMagnification(paintMagnification);
            gridPrintingList[i].plotter->setBackgroundBrush(gridPrintingList[i].plotter->getExportBackgroundBrush());
            gridPrintingList[i].plotter->calcPlotScaling(painter);
        }
        gridPrintingCalc(); // ensure the grid plot has been calculated
        // scale the plot so it fits on the page
        double scale=static_cast<double>(pageRect.width())/static_cast<double>(gridPrintingSize.width());
        if (/*(scale*static_cast<double>(gridPrintingSize.width())>static_cast<double>(pageRect.width())) ||*/ (scale*static_cast<double>(gridPrintingSize.height())>static_cast<double>(pageRect.height())) && scaleIfTooLarge) {
            scale=static_cast<double>(pageRect.height())/static_cast<double>(gridPrintingSize.height());
        }
        if (!scaleIfTooSmall && scale>1.0) scale=1.0;
        if (!scaleIfTooLarge && !scaleIfTooSmall) scale=1.0;
#ifdef SHOW_JKQTPLOTTER_DEBUG
        qDebug()<<"gridPaint: scale="<<scale;
#endif
        painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
        painter.scale(scale, scale);

        {
            // plot this plotter
            painter.save(); auto __finalpaintinner=JKQTPFinally([&painter]() {painter.restore();});
            int t_x=0;
            int t_y=0;
            //std::cout<<"printing this ...\n";
            for (size_t i=0; i<gridPrintingCurrentX; i++) { t_x+= static_cast<int>(gridPrintingColumns[static_cast<int>(i)]); }
            for (size_t i=0; i<gridPrintingCurrentY; i++) { t_y+= static_cast<int>(gridPrintingRows[static_cast<int>(i)]); }
            //std::cout<<"printing this @ "<<t_x<<", "<<t_y<<" ...\n";
            painter.translate(t_x, t_y);
            drawPlot(painter, showOverlays);

            //std::cout<<"this printed ...\n";

            // plot all the other plotters
            for (int i=0; i< gridPrintingList.size(); i++) {
                //std::cout<<"printing "<<i<<" ...\n";
                painter.save(); auto __finalpaintinnerloop=JKQTPFinally([&painter]() {painter.restore();});
                int gt_x=0;
                int gt_y=0;
                //std::cout<<"printing "<<i<<" @g "<<gridPrintingList[i].x<<", "<<gridPrintingList[i].y<<" ...\n";
                //std::cout<<"colrowlistsizes     "<<gridPrintingColumns.size()<<", "<<gridPrintingRows.size()<<" ...\n";
                for (size_t j=0; j<gridPrintingList[i].x; j++) {  gt_x+= static_cast<int>(gridPrintingColumns[static_cast<int>(j)]);  }
                for (size_t j=0; j<gridPrintingList[i].y; j++) {  gt_y+= static_cast<int>(gridPrintingRows[static_cast<int>(j)]); }
                //std::cout<<"printing "<<i<<" @ "<<t_x<<", "<<t_y<<" ...\n";
                painter.translate(gt_x, gt_y);
                gridPrintingList[i].plotter->drawPlot(painter, showOverlays);

            }



            for (int i=0; i< gridPrintingList.size(); i++) {
                gridPrintingList[i].plotter->setFontSizeMultiplier(fsm[i]);
                gridPrintingList[i].plotter->setLineWidthMultiplier(lwm[i]);
                gridPrintingList[i].plotter->setPaintMagnification(pm[i]);
                gridPrintingList[i].plotter->setBackgroundBrush(backg[i]);
                gridPrintingList[i].plotter->redrawPlot();
            }
        }

    }
}


void JKQTBasePlotter::gridPaintOverlays(JKQTPEnhancedPainter &painter, QSizeF pageRect)
{
    if (!gridPrinting) {
        double scale=static_cast<double>(pageRect.width())/static_cast<double>(widgetWidth)*paintMagnification;
        if (/*(scale*static_cast<double>(widgetWidth)/paintMagnification>static_cast<double>(pageRect.width())) ||*/ (scale*static_cast<double>(widgetHeight)>static_cast<double>(pageRect.height()))) {
            scale=static_cast<double>(pageRect.height())/static_cast<double>(widgetHeight);
        }
        painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
        // scale the plot so it fits on the page
        painter.scale(scale, scale);
        drawOverlaysWithHints(painter);

    } else {
        gridPrintingCalc(); // ensure the grid plot has been calculated
        // scale the plot so it fits on the page
        double scale=static_cast<double>(pageRect.width())/static_cast<double>(gridPrintingSize.width());
        if (/*(scale*static_cast<double>(gridPrintingSize.width())>static_cast<double>(pageRect.width())) ||*/ (scale*static_cast<double>(gridPrintingSize.height())>static_cast<double>(pageRect.height()))) {
            scale=static_cast<double>(pageRect.height())/static_cast<double>(gridPrintingSize.height());
        }
        painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
        painter.scale(scale, scale);

        {
            // plot this plotter
            painter.save(); auto __finalpaintinner=JKQTPFinally([&painter]() {painter.restore();});
            size_t t_x=0;
            size_t t_y=0;
            //std::cout<<"printing this ...\n";
            for (size_t i=0; i<gridPrintingCurrentX; i++) { t_x+=gridPrintingColumns[static_cast<int>(i)]; }
            for (size_t i=0; i<gridPrintingCurrentY; i++) { t_y+=gridPrintingRows[static_cast<int>(i)]; }
            //std::cout<<"printing this @ "<<t_x<<", "<<t_y<<" ...\n";
            painter.translate(t_x, t_y);
            drawOverlaysWithHints(painter);

            //std::cout<<"this printed ...\n";

            // plot all the other plotters
            for (int i=0; i< gridPrintingList.size(); i++) {
                //std::cout<<"printing "<<i<<" ...\n";
                painter.save(); auto __finalpaintinnerloop=JKQTPFinally([&painter]() {painter.restore();});
                int gt_x=0;
                int gt_y=0;
                //std::cout<<"printing "<<i<<" @g "<<gridPrintingList[i].x<<", "<<gridPrintingList[i].y<<" ...\n";
                //std::cout<<"colrowlistsizes     "<<gridPrintingColumns.size()<<", "<<gridPrintingRows.size()<<" ...\n";
                for (size_t j=0; j<gridPrintingList[i].x; j++) {  gt_x+= static_cast<int>(gridPrintingColumns[static_cast<int>(j)]);  }
                for (size_t j=0; j<gridPrintingList[i].y; j++) {  gt_y+= static_cast<int>(gridPrintingRows[static_cast<int>(j)]); }
                //std::cout<<"printing "<<i<<" @ "<<t_x<<", "<<t_y<<" ...\n";
                painter.translate(gt_x, gt_y);
                gridPrintingList[i].plotter->drawOverlaysWithHints(painter);

            }

        }


    }
}


void JKQTBasePlotter::print(QPrinter* printer, bool displayPreview) {
    loadUserSettings();
    QPrinter* p=printer;
    bool delP=false;


    // select a printer
    if (p==nullptr) {
        p=new QPrinter();
        p->setPrinterName(currentPrinter);
        delP=true;

        QPrintDialog *dialog = new QPrintDialog(p, nullptr);
        dialog->setWindowTitle(tr("Print Plot"));
        if (dialog->exec() != QDialog::Accepted) {
            delete p;
            delete dialog;
            return;
        }
        currentPrinter=p->printerName();
        delete dialog;
    }

    p->setPageMargins(10,10,10,10,QPrinter::Millimeter);

    if (widgetWidth>widgetHeight) {
        p->setOrientation(QPrinter::Landscape);
    } else {
        p->setOrientation(QPrinter::Portrait);
    }

    printpreviewNew(p, false, -1.0, -1.0, displayPreview);

    if (delP) delete p;
    saveUserSettings();
}



bool JKQTBasePlotter::printpreviewNew(QPaintDevice* paintDevice, bool setAbsolutePaperSize, double printsizeX_inMM, double printsizeY_inMM, bool displayPreview) {
    QPrinter *printer=dynamic_cast<QPrinter*>(paintDevice);
    QSvgGenerator* svg=dynamic_cast<QSvgGenerator*>(paintDevice);
    double lw=lineWidthMultiplier;
    double fs=fontSizeMultiplier;
    double oldP=paintMagnification;
    QBrush bc=plotterStyle.widgetBackgroundBrush;
    plotterStyle.widgetBackgroundBrush=plotterStyle.exportBackgroundBrush;
    lineWidthMultiplier=lineWidthPrintMultiplier;
    fontSizeMultiplier=fontSizePrintMultiplier;
    exportPreviewLabel=nullptr;
    printMagnification=1.0;
    paintMagnification=1.0;
    gridPrintingCalc();

    //double resolution=paintDevice->logicalDpiX();
    //if (printer) resolution=printer->resolution();

    printAspect=gridPrintingSize.height()/gridPrintingSize.width();
    if (printer) printPageSizeMM=printer->pageRect(QPrinter::Millimeter).size();
    else printPageSizeMM=QSizeF(paintDevice->widthMM(), paintDevice->heightMM());
    printSizeX_Millimeter=double(gridPrintingSize.width())/96.0*25.4;//double(resolution)*25.4; // convert current widget size in pt to millimeters, assuming 96dpi (default screen resolution)
    printSizeY_Millimeter=double(gridPrintingSize.height())/96.0*25.4;//double(resolution)*25.4;
    if (printsizeX_inMM>0) printSizeX_Millimeter=printsizeX_inMM;
    if (printsizeY_inMM>0) printSizeY_Millimeter=printsizeY_inMM;

    bool startWithMagnification=false;
    if (!setAbsolutePaperSize) {
        if (printSizeX_Millimeter>printPageSizeMM.width() || printSizeY_Millimeter>printPageSizeMM.height()) {
            startWithMagnification=true;
            printMagnification=qMin(printPageSizeMM.width()/printSizeX_Millimeter, printPageSizeMM.height()/printSizeY_Millimeter);
        }
    }
    printKeepAspect=true;

    printSetAbsolutePageSize=setAbsolutePaperSize;
    printKeepAbsoluteFontSizes=true;
    printScaleToPagesize=false;
    QDialog* dlg=new QDialog(nullptr, Qt::WindowMinMaxButtonsHint);
    dlg->setSizeGripEnabled(true);
    //printZoomFactor=0.95;
    //printMagnification=1.5;
    QGridLayout* layout=new QGridLayout();
    dlg->setLayout(layout);
    dlg->setWindowTitle(tr("Graph print/export preview ..."));
    dlg->setWindowIcon(QIcon(":/JKQTPlotter/jkqtp_exportprintpreview.png"));

    bool delPrinter=false;
    if (svg) {
        printer=new QPrinter();
        printer->setColorMode(QPrinter::Color);
        printer->setOutputFormat(QPrinter::PdfFormat);
        printer->setResolution(svg->logicalDpiX());
        printer->setPageMargins(0,0,0,0,QPrinter::Millimeter);
        printer->setColorMode(QPrinter::Color);
        delPrinter=true;
    } else if (!printer) {
        printer=new QPrinter();
        printer->setOutputFormat(QPrinter::PdfFormat);
        printer->setResolution(paintDevice->logicalDpiX());
        printer->setPageMargins(0,0,0,0,QPrinter::Millimeter);
        printer->setColorMode(QPrinter::Color);
        delPrinter=true;
    }


    printPreview=new QPrintPreviewWidget(printer, dlg);
    connect(printPreview, SIGNAL(paintRequested(QPrinter*)), this, SLOT(printpreviewPaintRequestedNew(QPrinter*)));



    spinSizeX=new JKQTPEnhancedDoubleSpinBox(dlg);
    spinSizeX->setRange(10,100000);
    spinSizeX->setValue(printSizeX_Millimeter);
    spinSizeX->setSingleStep(10);
    spinSizeX->setDecimals(1);
    spinSizeX->setSuffix(tr(" mm"));
    spinSizeX->setToolTip(tr("set the size of the output in millimeters"));
    connect(spinSizeX, SIGNAL(valueChanged(double)), this, SLOT(printpreviewSetSizeXNew(double)));
    connect(spinSizeX, SIGNAL(editingFinished()), this, SLOT(printpreviewUpdate()));
    spinSizeY=new JKQTPEnhancedDoubleSpinBox(dlg);
    spinSizeY->setRange(10,100000);
    spinSizeY->setValue(printSizeY_Millimeter);
    spinSizeY->setSingleStep(10);
    spinSizeY->setDecimals(1);
    spinSizeY->setSuffix(tr(" mm"));
    spinSizeY->setToolTip(tr("set the size of the output in millimeters"));
    spinSizeY->setEnabled(false);
    connect(spinSizeY, SIGNAL(valueChanged(double)), this, SLOT(printpreviewSetSizeYNew(double)));
    connect(spinSizeY, SIGNAL(editingFinished()), this, SLOT(printpreviewUpdate()));
    QCheckBox* chkAspect=new QCheckBox(tr("keep aspect ratio"), dlg);
    chkAspect->setChecked(true);
    chkAspect->setToolTip(tr("choose whether to keep the aspect ratio for the print/export, as on the screen."));
    connect(chkAspect, SIGNAL(toggled(bool)), spinSizeY, SLOT(setDisabled(bool)));
    connect(chkAspect, SIGNAL(toggled(bool)), this, SLOT(printpreviewSetAspectRatio(bool)));

    if (setAbsolutePaperSize) {
        layout->addWidget(new QLabel(tr("paper/plot size: ")), 0,layout->columnCount());
    } else if (printer && !svg) {
        int y=layout->columnCount();
        layout->addWidget(new QLabel(tr("plot size: ")), 0,y);
    } else {
        int y=layout->columnCount();
        layout->addWidget(new QLabel(tr("paper size: ")), 1,y);
        layout->addWidget(new QLabel(tr("plot size: ")), 0,y);
    }
    layout->addWidget(spinSizeX, 0,layout->columnCount());
    layout->addWidget(new QLabel(tr(" x ")), 0,layout->columnCount());
    layout->addWidget(spinSizeY, 0,layout->columnCount());
    layout->addWidget(chkAspect, 0,layout->columnCount());
    if (!setAbsolutePaperSize && printer && !svg) {
        layout->addWidget(new QLabel(tr("%1x%2 mm^2").arg(printer->pageRect(QPrinter::Millimeter).width()).arg(printer->pageRect(QPrinter::Millimeter).height())), 1,layout->columnCount()-4, 1, 4);

        QCheckBox* chkSetMagnification=new QCheckBox(tr("set by magnification: "), dlg);
        chkSetMagnification->setChecked(false);
        spinMagnification=new JKQTPEnhancedDoubleSpinBox(dlg);
        spinMagnification->setEnabled(false);
        spinMagnification->setRange(1,1000);
        spinMagnification->setValue(printMagnification*100.0);
        spinMagnification->setSingleStep(10);
        spinMagnification->setDecimals(0);
        spinMagnification->setSuffix(tr(" %"));
        spinMagnification->setToolTip(tr("use this to change the base size of the plot<br>"
                                         "This will not change the size of the plot on<br>"
                                         "the page, only it's appearance. A magn. of 100%<br>"
                                         "will print the plot in the same proportions as<br>"
                                         "on the screen, whereas 50% will use twice as much<br>"
                                         "space for the plot, as on the screen. <i>This mainly<br>"
                                         "influences the relative font size!</i>"));
        connect(spinMagnification, SIGNAL(valueChanged(double)), this, SLOT(printpreviewSetMagnificationNew(double)));
        connect(chkSetMagnification, SIGNAL(toggled(bool)), spinMagnification, SLOT(setEnabled(bool)));
        connect(chkSetMagnification, SIGNAL(toggled(bool)), spinSizeX, SLOT(setDisabled(bool)));
        connect(chkSetMagnification, SIGNAL(toggled(bool)), spinSizeY, SLOT(setDisabled(bool)));
        connect(chkSetMagnification, SIGNAL(toggled(bool)), chkAspect, SLOT(setDisabled(bool)));
        connect(spinMagnification, SIGNAL(editingFinished()), this, SLOT(printpreviewUpdate()));
        connect(chkSetMagnification, SIGNAL(toggled(bool)), this, SLOT(printpreviewToggleMagnification(bool)));
        spinMagnification->setEnabled(startWithMagnification);
        chkSetMagnification->setChecked(startWithMagnification);
        layout->addWidget(chkSetMagnification, 0,layout->columnCount());
        layout->addWidget(spinMagnification, 0,layout->columnCount());
    }



    JKQTPEnhancedDoubleSpinBox* spinLineWidthMult=new JKQTPEnhancedDoubleSpinBox(dlg);
    spinLineWidthMult->setRange(1,1000);
    spinLineWidthMult->setValue(lineWidthPrintMultiplier*100.0);
    spinLineWidthMult->setSingleStep(10);
    spinLineWidthMult->setDecimals(0);
    spinLineWidthMult->setSuffix(tr(" %"));
    spinLineWidthMult->setToolTip(tr("use this to change the relative width of the lines\n"
                                     "in the exported/printed plot."));
    connect(spinLineWidthMult, SIGNAL(editingFinished(double)), this, SLOT(printpreviewSetLineWidthMultiplier(double)));

    QCheckBox* chkKeepAbsoluteFontSize=new QCheckBox(tr("keep abs. fontsize"), dlg);
    chkKeepAbsoluteFontSize->setChecked(true);
    connect(chkKeepAbsoluteFontSize, SIGNAL(toggled(bool)), this, SLOT(printpreviewSetKeepAbsFontsize(bool)));

    JKQTPEnhancedDoubleSpinBox* spinFontSizeMult=new JKQTPEnhancedDoubleSpinBox(dlg);
    spinFontSizeMult->setEnabled(false);
    spinFontSizeMult->setRange(1,1000);
    spinFontSizeMult->setValue(fontSizePrintMultiplier*100.0);
    spinFontSizeMult->setSingleStep(10);
    spinFontSizeMult->setDecimals(0);
    spinFontSizeMult->setSuffix(tr(" %"));
    spinFontSizeMult->setToolTip(tr("use this to change the relative size of the text fonts\n"
                                     "in the exported/printed plot."));
    connect(spinFontSizeMult, SIGNAL(editingFinished(double)), this, SLOT(printpreviewSetFontSizeMultiplier(double)));
    connect(chkKeepAbsoluteFontSize, SIGNAL(toggled(bool)), spinFontSizeMult, SLOT(setDisabled(bool)));


    layout->addWidget(new QLabel(tr("linewidth mult.: ")), 0,layout->columnCount());
    layout->addWidget(spinLineWidthMult, 0,layout->columnCount());
    int gpos=layout->columnCount();
    layout->addWidget(chkKeepAbsoluteFontSize, 0,gpos,1,2);
    layout->addWidget(new QLabel(tr("font size mult.: ")), 1,gpos);
    layout->addWidget(spinFontSizeMult, 1,gpos+1);
    layout->addWidget(new QWidget(), 0,layout->columnCount());
    layout->setColumnStretch(layout->columnCount()-1, 1);
    layout->addWidget(printPreview, layout->rowCount(),0, 1, layout->columnCount());
    QDialogButtonBox* buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
    connect(buttonBox, SIGNAL(accepted()), dlg, SLOT(accept()));
    connect(buttonBox, SIGNAL(rejected()), dlg, SLOT(reject()));
    layout->addWidget(buttonBox, layout->rowCount(),0, 1, layout->columnCount());
    dlg->resize(800,500);

    bool res=false;
    if (printer) {
        if (!displayPreview || dlg->exec()==QDialog::Accepted) {
            //qDebug()<<svg<<printer<<delPrinter;
            if (svg) {
                printpreviewPaintRequestedNew(svg);
            } else if (!delPrinter) {
                printpreviewPaintRequestedNew(printer);
            } else {
                printpreviewPaintRequestedNew(paintDevice);
            }
            res=true;
        }
    }
    if ((svg||delPrinter) && printer) {
        delete printer;
    }
    delete dlg;
    printPreview=nullptr;
    lineWidthMultiplier=lw;
    fontSizeMultiplier=fs;
    plotterStyle.widgetBackgroundBrush=bc;
    paintMagnification=oldP;

    mathText.setUseUnparsed(false);

    return res;

}

bool JKQTBasePlotter::exportpreview(QSizeF pageSize, bool unitIsMM) {
    printPreview=nullptr;
    printSizeX_Millimeter=pageSize.width();
    printSizeY_Millimeter=pageSize.height();
    printAspect=1;
    printKeepAspect=false;
    exportUnitInMM=unitIsMM;

    printSetAbsolutePageSize=true;
    printScaleToPagesize=false;
    printKeepAbsoluteFontSizes=true;
    QDialog* dlg=new QDialog(nullptr, Qt::WindowMinMaxButtonsHint);
    dlg->setSizeGripEnabled(true);
    //printZoomFactor=0.95;
    //printMagnification=1.5;
    QGridLayout* layout=new QGridLayout();
    dlg->setLayout(layout);
    dlg->setWindowTitle(tr("Graph export preview ..."));
    dlg->setWindowIcon(QIcon(":/JKQTPlotter/jkqtp_exportprintpreview.png"));
    /*printPreview=new QPrintPreviewWidget(p, dlg);
    connect(printPreview, SIGNAL(paintRequested(QPrinter*)), this, SLOT(printpreviewPaintRequested(QPrinter*)));*/
    QScrollArea* scroll=new QScrollArea(dlg);
    {
        QPalette p(scroll->palette());
        // Set background colour to black
        p.setColor(QPalette::Background, Qt::darkGray);
        scroll->setPalette(p);
    }
    exportPreviewLabel=new QLabel(scroll);
    exportPreviewLabel->setMargin(10);
    scroll->setWidget(exportPreviewLabel);
    {
        QPalette p(exportPreviewLabel->palette());
        // Set background colour to black
        p.setColor(QPalette::Background, Qt::darkGray);
        exportPreviewLabel->setPalette(p);
    }



    printAspect=double(widgetHeight)/double(widgetWidth);
    if (gridPrinting) {
        gridPrintingCalc();
        printAspect=double(gridPrintingSize.height())/double(gridPrintingSize.width());
    }
    printSizeY_Millimeter=printSizeX_Millimeter*printAspect;
    printKeepAspect=true;

    JKQTPEnhancedDoubleSpinBox* spinSizeX=new JKQTPEnhancedDoubleSpinBox(dlg);
    spinSizeX->setRange(1,10000);
    spinSizeX->setValue(printSizeX_Millimeter);
    spinSizeX->setSingleStep(10);
    if (unitIsMM) spinSizeX->setDecimals(1);
    else spinSizeX->setDecimals(0);
    if (unitIsMM) spinSizeX->setSuffix(tr(" mm"));
    spinSizeX->setToolTip(tr("set the size of the output page"));
    connect(spinSizeX, SIGNAL(editingFinished(double)), this, SLOT(printpreviewSetSizeX(double)));
    spinSizeY=new JKQTPEnhancedDoubleSpinBox(dlg);
    spinSizeY->setRange(1,10000);
    spinSizeY->setValue(printSizeY_Millimeter);
    spinSizeY->setSingleStep(10);
    if (unitIsMM) spinSizeY->setDecimals(1);
    else spinSizeY->setDecimals(0);
    if (unitIsMM) spinSizeY->setSuffix(tr(" mm"));
    spinSizeY->setToolTip(tr("set the size of the output page"));
    spinSizeY->setEnabled(false);
    connect(spinSizeY, SIGNAL(editingFinished(double)), this, SLOT(printpreviewSetSizeY(double)));
    QCheckBox* chkAspect=new QCheckBox(tr("keep aspect ratio"), dlg);
    chkAspect->setChecked(true);
    chkAspect->setToolTip(tr("choose whether to keep the aspect ratio for the print/export, as on the screen."));
    connect(chkAspect, SIGNAL(toggled(bool)), spinSizeY, SLOT(setDisabled(bool)));
    connect(chkAspect, SIGNAL(toggled(bool)), this, SLOT(printpreviewSetAspectRatio(bool)));

    layout->addWidget(new QLabel(tr("page size: ")), 0,layout->columnCount());
    layout->addWidget(spinSizeX, 0,layout->columnCount());
    layout->addWidget(new QLabel(tr(" x ")), 0,layout->columnCount());
    layout->addWidget(spinSizeY, 0,layout->columnCount());
    layout->addWidget(chkAspect, 0,layout->columnCount());


    JKQTPEnhancedDoubleSpinBox* spinMagnification=new JKQTPEnhancedDoubleSpinBox(dlg);
    spinMagnification->setRange(1,1000);
    spinMagnification->setValue(printMagnification*100.0);
    spinMagnification->setSingleStep(10);
    spinMagnification->setDecimals(0);
    spinMagnification->setSuffix(tr(" %"));
    spinMagnification->setToolTip(tr("use this to change the base size of the plot<br>"
                                     "This will not change the size of the plot on<br>"
                                     "the page, only it's appearance. A magn. of 100%<br>"
                                     "will print the plot in the same proportions as<br>"
                                     "on the screen, whereas 50% will use twice as much<br>"
                                     "space for the plot, as on the screen. <i>This mainly<br>"
                                     "influences the relative font size!</i>"));
    connect(spinMagnification, SIGNAL(editingFinished(double)), this, SLOT(printpreviewSetMagnification(double)));

    layout->addWidget(new QLabel(tr("magnification: ")), 0,layout->columnCount());
    layout->addWidget(spinMagnification, 0,layout->columnCount());


    JKQTPEnhancedDoubleSpinBox* spinLineWidthMult=new JKQTPEnhancedDoubleSpinBox(dlg);
    spinLineWidthMult->setRange(1,1000);
    spinLineWidthMult->setValue(lineWidthPrintMultiplier*100.0);
    spinLineWidthMult->setSingleStep(10);
    spinLineWidthMult->setDecimals(0);
    spinLineWidthMult->setSuffix(tr(" %"));
    spinLineWidthMult->setToolTip(tr("use this to change the relative width of the lines\n"
                                     "in the exported/printed plot."));
    connect(spinLineWidthMult, SIGNAL(editingFinished(double)), this, SLOT(printpreviewSetLineWidthMultiplier(double)));

    JKQTPEnhancedDoubleSpinBox* spinFontSizeMult=new JKQTPEnhancedDoubleSpinBox(dlg);
    spinFontSizeMult->setRange(1,1000);
    spinFontSizeMult->setValue(fontSizePrintMultiplier*100.0);
    spinFontSizeMult->setSingleStep(10);
    spinFontSizeMult->setDecimals(0);
    spinFontSizeMult->setSuffix(tr(" %"));
    spinFontSizeMult->setToolTip(tr("use this to change the relative size of the text fonts\n"
                                     "in the exported/printed plot."));
    connect(spinFontSizeMult, SIGNAL(editingFinished(double)), this, SLOT(printpreviewSetFontSizeMultiplier(double)));

    layout->addWidget(new QLabel(tr("magnification: ")), 0,layout->columnCount());
    layout->addWidget(spinMagnification, 0,layout->columnCount());
    layout->addWidget(new QLabel(tr("linewidth mult.: ")), 0,layout->columnCount());
    layout->addWidget(spinLineWidthMult, 0,layout->columnCount());
    layout->addWidget(new QLabel(tr("font size mult.: ")), 0,layout->columnCount());
    layout->addWidget(spinFontSizeMult, 0,layout->columnCount());


    layout->addWidget(new QWidget(), 0,layout->columnCount());
    layout->setColumnStretch(layout->columnCount()-1, 1);
    layout->addWidget(scroll, layout->rowCount(),0, 1, layout->columnCount());
    QDialogButtonBox* buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
    connect(buttonBox, SIGNAL(accepted()), dlg, SLOT(accept()));
    connect(buttonBox, SIGNAL(rejected()), dlg, SLOT(reject()));
    layout->addWidget(buttonBox, layout->rowCount(),0, 1, layout->columnCount());
    dlg->resize(800,500);
    updatePreviewLabel();

    bool result=false;
    if (dlg->exec()==QDialog::Accepted) {
        result=true;
    }
    return result;
}

void JKQTBasePlotter::setFontSizeMultiplier(double __value)
{
    this->fontSizeMultiplier = __value;
}

void JKQTBasePlotter::setLineWidthMultiplier(double __value)
{
    this->lineWidthMultiplier = __value;
}

void JKQTBasePlotter::setPrintMagnification(double __value)
{
    this->printMagnification = __value;
}

double JKQTBasePlotter::getPrintMagnification() const
{
    return this->printMagnification;
}

void JKQTBasePlotter::setPaintMagnification(double __value)
{
    this->paintMagnification = __value;
}

double JKQTBasePlotter::getPaintMagnification() const
{
    return this->paintMagnification;
}

void JKQTBasePlotter::updatePreviewLabel() {
    double factor=1;
    if (exportUnitInMM) factor=600.0/double(printSizeX_Millimeter);
    QImage pix(jkqtp_roundTo<int>(double(printSizeX_Millimeter)*factor*1.1), jkqtp_roundTo<int>(double(printSizeY_Millimeter)*factor*1.1), QImage::Format_ARGB32);
    pix.fill(Qt::transparent);
    JKQTPEnhancedPainter painter;
    painter.begin(&pix);
    exportpreviewPaintRequested(painter, QSize(jkqtp_roundTo<int>(double(printSizeX_Millimeter)*factor), jkqtp_roundTo<int>(double(printSizeY_Millimeter)*factor)));
    painter.end();
    if (exportPreviewLabel) {
        QPixmap pm;
        pm.convertFromImage(pix);
        exportPreviewLabel->setPixmap(pm);
        exportPreviewLabel->resize(pm.size());
    }
}

void JKQTBasePlotter::printpreviewPaintRequested(QPrinter* printer) {
    double lw=lineWidthMultiplier;
    double fs=fontSizeMultiplier;
    QBrush bc=plotterStyle.widgetBackgroundBrush;
    plotterStyle.widgetBackgroundBrush=plotterStyle.exportBackgroundBrush;
    lineWidthMultiplier=lineWidthPrintMultiplier;
    fontSizeMultiplier=fontSizePrintMultiplier;

    bool oldEmitPlotSignals=emitPlotSignals;
    emitPlotSignals=false;
    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
    QApplication::processEvents();
    int oldWidgetWidth=widgetWidth;
    int oldWidgetHeight=widgetHeight;
    //widgetWidth=widgetWidth/printMagnification;
    //widgetHeight=widgetHeight/printMagnification;
    double oldpm=paintMagnification;
    paintMagnification=printMagnification;
    if (printSetAbsolutePageSize) {
#ifdef SHOW_JKQTPLOTTER_DEBUG
        qDebug()<<"set printing abs. size to "<<QSizeF(printSizeX_Millimeter, printSizeY_Millimeter)<<" mm^2";
#endif
        //printer->setPaperSize(QPrinter::Custom);
        printer->setOrientation(QPrinter::Portrait);
        printer->setPaperSize(QSizeF(printSizeX_Millimeter, printSizeY_Millimeter), QPrinter::Millimeter);
        if (!gridPrinting) widgetHeight=jkqtp_roundTo<int>(widgetWidth*printSizeY_Millimeter/printSizeX_Millimeter);

    }

    JKQTPEnhancedPainter painter;
    painter.begin(printer);
    if (!printSetAbsolutePageSize) {
#ifdef SHOW_JKQTPLOTTER_DEBUG
        qDebug()<<"scale printing to "<<printZoomFactor;
#endif
        painter.scale(printZoomFactor, printZoomFactor);
    }

    if (printKeepAbsoluteFontSizes) {
        if (printZoomFactor!=1.0) {
            fontSizeMultiplier=1.0/printZoomFactor;
        }
    }
#ifdef SHOW_JKQTPLOTTER_DEBUG

    qDebug()<<"printSetAbsoluteSize = "<<printSetAbsolutePageSize;
    qDebug()<<"printScaleToPagesize = "<<printScaleToPagesize;
    qDebug()<<"printKeepAbsoluteFontSizes = "<<printKeepAbsoluteFontSizes;
    qDebug()<<"print with widget size "<<widgetWidth<<widgetHeight;
    qDebug()<<"print with paper size "<<printer->pageRect().size()<<" ";
    QSizeF sl=QSizeF(QSizeF(printer->pageRect().size()).width()/printer->logicalDpiX()*25.4, QSizeF(printer->pageRect().size()).height()/printer->logicalDpiY()*25.4);
    qDebug()<<"print with paper size "<<sl<<" mm^2";
    qDebug()<<"paintMagnification = "<<paintMagnification;
    qDebug()<<"lineWidthMultiplier = "<<lineWidthMultiplier;
    qDebug()<<"fontSizeMultiplier = "<<fontSizeMultiplier;
    qDebug()<<"printer resolution = "<<printer->resolution()<<" dpi";
    qDebug()<<"\nplotLabelFontSize = "<<plotterStyle.plotLabelFontSize<<" pt";
    qDebug()<<"plotterStyle.keyStyle.fontSize = "<<plotterStyle.keyStyle.fontSize<<" pt";
    qDebug()<<"x-axis label fontsize = "<<xAxis->getLabelFontSize()<<" pt";
    qDebug()<<"y-axis label fontsize = "<<yAxis->getLabelFontSize()<<" pt";
#endif
    gridPaint(painter, printer->pageRect().size(), true, printScaleToPagesize, printScaleToPagesize);
    painter.end();
    widgetWidth=oldWidgetWidth;
    widgetHeight=oldWidgetHeight;
    QApplication::restoreOverrideCursor();
    QApplication::processEvents();
    emitPlotSignals=oldEmitPlotSignals;
    lineWidthMultiplier=lw;
    fontSizeMultiplier=fs;
    paintMagnification=oldpm;
    plotterStyle.widgetBackgroundBrush=bc;

}


void JKQTBasePlotter::printpreviewPaintRequestedNew(QPrinter* printer) {
    QPaintDevice* paintDevice=dynamic_cast<QPaintDevice*>(printer);
    printpreviewPaintRequestedNew(paintDevice);

}

void JKQTBasePlotter::printpreviewPaintRequestedNew(QPaintDevice *paintDevice)
{
    //QPaintDevice* paintDevice=dynamic_cast<QPaintDevice*>(printer);
    QPrinter* printer=dynamic_cast<QPrinter*>(paintDevice);
    QSvgGenerator* svg=dynamic_cast<QSvgGenerator*>(paintDevice);

    double lw=lineWidthMultiplier;
    double fs=fontSizeMultiplier;
    QBrush bc=plotterStyle.widgetBackgroundBrush;
    plotterStyle.widgetBackgroundBrush=plotterStyle.exportBackgroundBrush;
    lineWidthMultiplier=lineWidthPrintMultiplier;
    fontSizeMultiplier=fontSizePrintMultiplier;

    bool oldEmitPlotSignals=emitPlotSignals;
    emitPlotSignals=false;
    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
    QApplication::processEvents();
    int oldWidgetWidth=widgetWidth;
    int oldWidgetHeight=widgetHeight;
    double oldpm=paintMagnification;
    paintMagnification=1.0;
    gridPrintingCalc();
    if (printSetAbsolutePageSize) {
#ifdef SHOW_JKQTPLOTTER_DEBUG
        qDebug()<<"set printing abs. size to "<<QSizeF(printSizeX_Millimeter, printSizeY_Millimeter)<<" mm^2";
#endif
        if (printer) {
            printer->setOrientation(QPrinter::Portrait);
            printer->setPaperSize(QSizeF(printSizeX_Millimeter, printSizeY_Millimeter), QPrinter::Millimeter);
        } else if (svg) {
            QRectF siz=QRectF(0,0,printSizeX_Millimeter,printSizeY_Millimeter);
            svg->setSize(QSizeF(ceil(siz.width()*svg->resolution()/25.4), ceil(siz.height()*svg->resolution()/25.4)).toSize());
            svg->setViewBox(QRect(0,0,-1,-1));//*25.4/double(svg->resolution()), printSizeY_Millimeter*25.4/double(svg->resolution())));
        }

    }
    paintMagnification=gridPrintingSize.width()/(printSizeX_Millimeter/25.4*double(paintDevice->logicalDpiX()));
    if (!gridPrinting) widgetHeight=jkqtp_roundTo<int>(widgetWidth*printSizeY_Millimeter/printSizeX_Millimeter);

    JKQTPEnhancedPainter painter;
    if (printer) painter.begin(printer);
    else if (svg) painter.begin(svg);
    else painter.begin(paintDevice);

    if (printKeepAbsoluteFontSizes) {
        fontSizeMultiplier=1.0;//1.0/paintMagnification;
    }

    if (svg) {
        lineWidthMultiplier=lineWidthMultiplier*72.0/96.0;
        fontSizeMultiplier=fontSizeMultiplier*72.0/96.0;
    }
#ifdef SHOW_JKQTPLOTTER_DEBUG
    qDebug()<<"\n\n\n==========================================================================";
    qDebug()<<"printAspect = "<<printAspect;
    qDebug()<<"printKeepAspect = "<<printKeepAspect;
    qDebug()<<"printSetAbsoluteSize = "<<printSetAbsolutePageSize;
    qDebug()<<"printScaleToPagesize = "<<printScaleToPagesize;
    qDebug()<<"printKeepAbsoluteFontSizes = "<<printKeepAbsoluteFontSizes;
    qDebug()<<"print with widget size "<<widgetWidth<<widgetHeight;
    if (printer) {
        qDebug()<<"print with paper size "<<printer->pageRect().size()<<" ";
        QSizeF sl=QSizeF(QSizeF(printer->pageRect().size()).width()/printer->logicalDpiX()*25.4, QSizeF(printer->pageRect().size()).height()/printer->logicalDpiY()*25.4);
        qDebug()<<"print with paper size "<<sl<<" mm^2";
    } else if (svg) {
        qDebug()<<"print with paper size "<<svg->size()<<" ";
        QSizeF sl=QSizeF(QSizeF(svg->viewBoxF().size()).width()/svg->resolution()*25.4, QSizeF(svg->size()).height()/svg->resolution()*25.4);
        qDebug()<<"print with paper size "<<sl<<" mm^2";
    }
    qDebug()<<"plot size             "<<printSizeX_Millimeter<<printSizeY_Millimeter<<" mm^2";
    qDebug()<<"paintMagnification = "<<paintMagnification;
    qDebug()<<"lineWidthMultiplier = "<<lineWidthMultiplier;
    qDebug()<<"fontSizeMultiplier = "<<fontSizeMultiplier;
    qDebug()<<"printer resolution = "<<paintDevice->logicalDpiX()<<" dpi";
    qDebug()<<"\nplotLabelFontSize = "<<plotterStyle.plotLabelFontSize<<" pt";
    qDebug()<<"plotterStyle.keyStyle.fontSize = "<<plotterStyle.keyStyle.fontSize<<" pt";
    qDebug()<<"x-axis label fontsize = "<<xAxis->getLabelFontSize()<<" pt";
    qDebug()<<"y-axis label fontsize = "<<yAxis->getLabelFontSize()<<" pt";
#endif
    if (printer) gridPaint(painter, printer->pageRect().size(), true, printScaleToPagesize, printScaleToPagesize);
    else if (svg) gridPaint(painter, svg->size(), true, printScaleToPagesize, printScaleToPagesize);
    else gridPaint(painter, QSizeF(paintDevice->width(), paintDevice->height()), true, printScaleToPagesize, printScaleToPagesize);
    painter.end();
    widgetWidth=oldWidgetWidth;
    widgetHeight=oldWidgetHeight;
    QApplication::restoreOverrideCursor();
    QApplication::processEvents();
    emitPlotSignals=oldEmitPlotSignals;
    lineWidthMultiplier=lw;
    fontSizeMultiplier=fs;
    paintMagnification=oldpm;
    plotterStyle.widgetBackgroundBrush=bc;
}

void JKQTBasePlotter::exportpreviewPaintRequested(JKQTPEnhancedPainter &painter, QSize size) {
    double lw=lineWidthMultiplier;
    double fs=fontSizeMultiplier;
    QBrush bc=plotterStyle.widgetBackgroundBrush;
    plotterStyle.widgetBackgroundBrush=plotterStyle.exportBackgroundBrush;
    lineWidthMultiplier=lineWidthPrintMultiplier;
    fontSizeMultiplier=fontSizePrintMultiplier;
    bool oldEmitPlotSignals=emitPlotSignals;
    emitPlotSignals=false;
    QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
    QApplication::processEvents();
    int oldWidgetWidth=widgetWidth;
    int oldWidgetHeight=widgetHeight;
    widgetWidth=size.width();
    widgetHeight=size.height();

    gridPaint(painter, size);
    widgetWidth=oldWidgetWidth;
    widgetHeight=oldWidgetHeight;
    QApplication::restoreOverrideCursor();
    QApplication::processEvents();
    emitPlotSignals=oldEmitPlotSignals;
    lineWidthMultiplier=lw;
    fontSizeMultiplier=fs;
    plotterStyle.widgetBackgroundBrush=bc;
}

void JKQTBasePlotter::printpreviewSetZoom(double value) {
    printZoomFactor=value/100.0;
    if (printPreview) printPreview->updatePreview();
    if (exportPreviewLabel) updatePreviewLabel();
}

void JKQTBasePlotter::printpreviewSetSizeX(double value) {
    printSizeX_Millimeter=value;
    if (printKeepAspect) {
        printSizeY_Millimeter=printSizeX_Millimeter*printAspect;
        spinSizeY->setValue(printSizeY_Millimeter);
    }
    if (printDoUpdate) {
        if (printPreview) printPreview->updatePreview();
        if (exportPreviewLabel) updatePreviewLabel();
    }
}
void JKQTBasePlotter::printpreviewSetSizeY(double value) {
    if (printKeepAspect) return;
    printSizeY_Millimeter=value;
    if (printDoUpdate) {
        if (printPreview) printPreview->updatePreview();
        if (exportPreviewLabel) updatePreviewLabel();
    }
}

void JKQTBasePlotter::printpreviewSetSizeXNew(double value) {
    printSizeX_Millimeter=value;
    if (printKeepAspect) {
        printSizeY_Millimeter=printSizeX_Millimeter*printAspect;
        spinSizeY->setValue(printSizeY_Millimeter);
    }

}
void JKQTBasePlotter::printpreviewSetSizeYNew(double value) {
    printSizeY_Millimeter=value;

}

void JKQTBasePlotter::printpreviewSetMagnification(double value) {
    printMagnification=value/100.0;
    if (printPreview) printPreview->updatePreview();
    if (exportPreviewLabel) updatePreviewLabel();
}


void JKQTBasePlotter::printpreviewSetMagnificationNew(double value)
{
    printMagnification=value/100.0;

    printDoUpdate=false;
    if (spinSizeY) {
        spinSizeY->setValue(printMagnification*printPageSizeMM.height());
    }
    if (spinSizeX) {
        spinSizeX->setValue(printMagnification*printPageSizeMM.width());
    }
    printDoUpdate=true;

}

void JKQTBasePlotter::printpreviewSetAspectRatio(bool checked) {
    printKeepAspect=checked;
    if (printKeepAspect) {
        printSizeY_Millimeter=printSizeX_Millimeter*printAspect;
        spinSizeY->setValue(printSizeY_Millimeter);
    }
    if (printPreview) printPreview->updatePreview();
    if (exportPreviewLabel) updatePreviewLabel();
}

void JKQTBasePlotter::printpreviewSetKeepAbsFontsize(bool checked)
{
    printKeepAbsoluteFontSizes=checked;
    if (printPreview) printPreview->updatePreview();
    if (exportPreviewLabel) updatePreviewLabel();
}

void JKQTBasePlotter::printpreviewToggleMagnification(bool checked)
{
    if (checked) {
        if (spinMagnification) printpreviewSetMagnificationNew(spinMagnification->value());
    }
    printpreviewUpdate();
}

void JKQTBasePlotter::printpreviewSetLineWidthMultiplier(double value) {
    lineWidthPrintMultiplier=value/100.0;
    if (printPreview) printPreview->updatePreview();
    if (exportPreviewLabel) updatePreviewLabel();
}

void JKQTBasePlotter::printpreviewSetFontSizeMultiplier(double value) {
    fontSizePrintMultiplier=value/100.0;
    if (printPreview) printPreview->updatePreview();
    if (exportPreviewLabel) updatePreviewLabel();
}

void JKQTBasePlotter::printpreviewUpdate()
{
    if (printDoUpdate) {
        if (printPreview) printPreview->updatePreview();
        if (exportPreviewLabel) updatePreviewLabel();
    }
}

void JKQTBasePlotter::draw(JKQTPEnhancedPainter& painter, const QRect& rect, bool showOverlays) {
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaaot(QString("JKQTBasePlotter::draw(rect, %1)").arg(showOverlays));
#endif
    bool oldEmitPlotSignals=emitPlotSignals;
    emitPlotSignals=false;
#ifdef JKQTBP_DEBUGTIMING
    QString on=objectName();
    if (on.isEmpty() && parent()) on=parent()->objectName();
    qDebug()<<on<<"::draw ...";
    QElapsedTimer timeAll;
    timeAll.start();
#endif
    //resize(rect.width(), rect.height());
    {
        painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
        painter.translate(rect.topLeft());
    #ifdef JKQTBP_DEBUGTIMING
        QElapsedTimer time;
        time.start();
    #endif
        gridPaint(painter, rect.size(), showOverlays);
    #ifdef JKQTBP_DEBUGTIMING
        qDebug()<<on<<"::draw ... gridPaint       = " <<time.nsecsElapsed()/1000<<" usecs = "<<static_cast<double>(time.nsecsElapsed())/1000000.0<<" msecs";
    #endif
    }
    emitPlotSignals=oldEmitPlotSignals;
}

void JKQTBasePlotter::drawOverlays(JKQTPEnhancedPainter &painter, const QRect& rect)
{

    //resize(rect.width(), rect.height());
    painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
    painter.translate(rect.topLeft());

    gridPaintOverlays(painter, rect.size());


}

void JKQTBasePlotter::draw(JKQTPEnhancedPainter& painter, const QPoint& pos, bool showOverlays) {
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaaot(QString("JKQTBasePlotter::draw(pos, %1)").arg(showOverlays));
#endif
    bool oldEmitPlotSignals=emitPlotSignals;
    emitPlotSignals=false;
#ifdef JKQTBP_DEBUGTIMING
    QString on=objectName();
    if (on.isEmpty() && parent()) on=parent()->objectName();
    qDebug()<<on<<"::draw ...";
    QElapsedTimer timeAll;
    timeAll.start();
#endif
    QRectF rect(pos, QSizeF(widgetWidth/paintMagnification, widgetHeight/paintMagnification));
    {
        painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
        painter.translate(rect.topLeft());
    #ifdef JKQTBP_DEBUGTIMING
        QElapsedTimer time;
        time.start();
    #endif
        gridPaint(painter, rect.size(), showOverlays);
    #ifdef JKQTBP_DEBUGTIMING
        qDebug()<<on<<"::draw ... gridPaint       = " <<time.nsecsElapsed()/1000<<" usecs = "<<static_cast<double>(time.nsecsElapsed())/1000000.0<<" msecs";
    #endif
    }
    emitPlotSignals=oldEmitPlotSignals;
}

void JKQTBasePlotter::drawNonGrid(JKQTPEnhancedPainter& painter, const QRect& rect, bool showOverlays) {
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaaot(QString("JKQTBasePlotter::drawNonGrid(rect, %1)").arg(showOverlays));
#endif
    bool oldEmitPlotSignals=emitPlotSignals;
    emitPlotSignals=false;
#ifdef JKQTBP_DEBUGTIMING
    QString on=objectName();
    if (on.isEmpty() && parent()) on=parent()->objectName();
    qDebug()<<on<<"::drawNonGrid ...";
    QElapsedTimer timeAll;
    timeAll.start();
#endif
    painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
    painter.translate(rect.topLeft());
#ifdef JKQTBP_DEBUGTIMING
    QElapsedTimer time;
    time.start();
#endif
    calcPlotScaling(painter);
#ifdef JKQTBP_DEBUGTIMING
    qDebug()<<on<<"::drawNonGrid ... calcPlotScaling = " <<time.nsecsElapsed()/1000<<" usecs = "<<static_cast<double>(time.nsecsElapsed())/1000000.0<<" msecs";
#endif
    {
        double scale=static_cast<double>(rect.width())/static_cast<double>(widgetWidth)*paintMagnification;
        if ((scale*static_cast<double>(widgetWidth)/paintMagnification>static_cast<double>(rect.width())) || (scale*static_cast<double>(widgetHeight)/paintMagnification>static_cast<double>(rect.height()))) {
            scale=static_cast<double>(rect.height())/static_cast<double>(widgetHeight)*paintMagnification;
        }
        painter.save(); auto __finalpaintinner=JKQTPFinally([&painter]() {painter.restore();});
        // scale the plot so it fits on the page
        painter.scale(scale, scale);
    #ifdef JKQTBP_DEBUGTIMING
        time.start();
    #endif
        drawPlot(painter, showOverlays);
    #ifdef JKQTBP_DEBUGTIMING
        qDebug()<<on<<"::drawNonGrid ... paintPlot       = " <<time.nsecsElapsed()/1000<<" usecs = "<<static_cast<double>(time.nsecsElapsed())/1000000.0<<" msecs";
    #endif


    #ifdef JKQTBP_DEBUGTIMING
        qDebug()<<on<<"::drawNonGrid ... DONE            = "<<timeAll.nsecsElapsed()/1000<<" usecs = "<<static_cast<double>(timeAll.nsecsElapsed())/1000000.0<<" msecs";
    #endif
    }
    emitPlotSignals=oldEmitPlotSignals;
}


void JKQTBasePlotter::drawNonGrid(JKQTPEnhancedPainter& painter, const QPoint& pos, bool showOverlays) {
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaaot(QString("JKQTBasePlotter::drawNonGrid(pos, %1)").arg(showOverlays));
#endif
    bool oldEmitPlotSignals=emitPlotSignals;
    emitPlotSignals=false;
#ifdef JKQTBP_DEBUGTIMING
    QString on=objectName();
    if (on.isEmpty() && parent()) on=parent()->objectName();
    qDebug()<<on<<"::drawNonGrid ...";
    QElapsedTimer timeAll;
    timeAll.start();
#endif
    QRectF rect(pos, QSizeF(widgetWidth/paintMagnification, widgetHeight/paintMagnification));
    painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
    painter.translate(rect.topLeft());
#ifdef JKQTBP_DEBUGTIMING
    QElapsedTimer time;
    time.start();
#endif
    calcPlotScaling(painter);
#ifdef JKQTBP_DEBUGTIMING
    qDebug()<<on<<"::drawNonGrid ... calcPlotScaling = " <<time.nsecsElapsed()/1000<<" usecs = "<<static_cast<double>(time.nsecsElapsed())/1000000.0<<" msecs";
#endif
    {
        double scale=static_cast<double>(rect.width())/static_cast<double>(widgetWidth)*paintMagnification;
        if ((scale*static_cast<double>(widgetWidth)/paintMagnification>static_cast<double>(rect.width())) || (scale*static_cast<double>(widgetHeight)/paintMagnification>static_cast<double>(rect.height()))) {
            scale=static_cast<double>(rect.height())/static_cast<double>(widgetHeight)*paintMagnification;
        }
        painter.save(); auto __finalpaintinner=JKQTPFinally([&painter]() {painter.restore();});
        // scale the plot so it fits on the page
        painter.scale(scale, scale);
    #ifdef JKQTBP_DEBUGTIMING
        time.start();
    #endif
        drawPlot(painter, showOverlays);
    #ifdef JKQTBP_DEBUGTIMING
        qDebug()<<on<<"::drawNonGrid ... paintPlot       = " <<time.nsecsElapsed()/1000<<" usecs = "<<static_cast<double>(time.nsecsElapsed())/1000000.0<<" msecs";
    #endif
    }


#ifdef JKQTBP_DEBUGTIMING
    qDebug()<<on<<"::drawNonGrid ... DONE            = "<<timeAll.nsecsElapsed()/1000<<" usecs = "<<static_cast<double>(timeAll.nsecsElapsed())/1000000.0<<" msecs";
#endif
    emitPlotSignals=oldEmitPlotSignals;
}

void JKQTBasePlotter::drawNonGridOverlays(JKQTPEnhancedPainter& painter, const QPoint& pos) {
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaaot(QString("JKQTBasePlotter::drawNonGridOverlays(point)"));
#endif
    QRectF rect(pos, QSizeF(widgetWidth/paintMagnification, widgetHeight/paintMagnification));
    painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
    painter.translate(rect.topLeft());
    double scale=static_cast<double>(rect.width())/static_cast<double>(widgetWidth)*paintMagnification;
    if ((scale*static_cast<double>(widgetWidth)/paintMagnification>static_cast<double>(rect.width())) || (scale*static_cast<double>(widgetHeight)/paintMagnification>static_cast<double>(rect.height()))) {
        scale=static_cast<double>(rect.height())/static_cast<double>(widgetHeight)*paintMagnification;
    }
    {
        painter.save(); auto __finalpaintinner=JKQTPFinally([&painter]() {painter.restore();});
        // scale the plot so it fits on the page
        painter.scale(scale, scale);
        drawOverlaysWithHints(painter);
    }


}

void JKQTBasePlotter::setEmittingPlotSignalsEnabled(bool __value)
{
    this->emitPlotSignals = __value;
}

bool JKQTBasePlotter::isEmittingPlotSignalsEnabled() const
{
    return this->emitPlotSignals;
}

int JKQTBasePlotter::getPlotBorderTop() const {
    return this->plotterStyle.plotBorderTop;
}

int JKQTBasePlotter::getPlotBorderLeft() const {
    return this->plotterStyle.plotBorderLeft;
}

int JKQTBasePlotter::getPlotBorderBottom() const {
    return this->plotterStyle.plotBorderBottom;
}

int JKQTBasePlotter::getPlotBorderRight() const {
    return this->plotterStyle.plotBorderRight;
}

bool JKQTBasePlotter::doesMaintainAspectRatio() const {
    return this->maintainAspectRatio;
}

void JKQTBasePlotter::setAspectRatio(double __value)
{
    if (jkqtp_approximatelyUnequal(this->aspectRatio , __value)) {
        this->aspectRatio = __value;
        redrawPlot();
    }
}

double JKQTBasePlotter::getAspectRatio() const
{
    return this->aspectRatio;
}

bool JKQTBasePlotter::doesMaintainAxisAspectRatio() const {
    return this->maintainAxisAspectRatio;
}

double JKQTBasePlotter::getAxisAspectRatio() const
{
    return this->axisAspectRatio;
}

bool JKQTBasePlotter::isUsingAntiAliasingForSystem() const
{
    return this->plotterStyle.useAntiAliasingForSystem;
}

bool JKQTBasePlotter::isUsingAntiAliasingForGraphs() const
{
    return this->plotterStyle.useAntiAliasingForGraphs;
}

bool JKQTBasePlotter::isUsingAntiAliasingForText() const
{
    return this->plotterStyle.useAntiAliasingForText;
}


void JKQTBasePlotter::setGraphWidth(double __value)
{
    if (jkqtp_approximatelyUnequal(this->plotterStyle.defaultGraphWidth , __value)) {
        this->plotterStyle.defaultGraphWidth = __value;
        redrawPlot();
    }
}

double JKQTBasePlotter::getGraphWidth() const
{
    return this->plotterStyle.defaultGraphWidth;
}

void JKQTBasePlotter::setBackgroundColor(const QColor &__value)
{
    if (this->plotterStyle.widgetBackgroundBrush != QBrush(__value)) {
        this->plotterStyle.widgetBackgroundBrush=QBrush(__value);
        redrawPlot();
    }
}

QColor JKQTBasePlotter::getBackgroundColor() const
{
    return this->plotterStyle.widgetBackgroundBrush.color();
}

void JKQTBasePlotter::setExportBackgroundColor(const QColor &__value)
{
    if (this->plotterStyle.exportBackgroundBrush != QBrush(__value)) {
        this->plotterStyle.exportBackgroundBrush=QBrush(__value);
        redrawPlot();
    }
}

QColor JKQTBasePlotter::getExportBackgroundColor() const
{
    return this->plotterStyle.exportBackgroundBrush.color();
}

QColor JKQTBasePlotter::getPlotBackgroundColor() const
{
    return this->plotterStyle.plotBackgroundBrush.color();
}

QBrush JKQTBasePlotter::getBackgroundBrush() const
{
    return this->plotterStyle.widgetBackgroundBrush;
}

QBrush JKQTBasePlotter::getExportBackgroundBrush() const
{
    return this->plotterStyle.exportBackgroundBrush;
}

QBrush JKQTBasePlotter::getPlotBackgroundBrush() const
{
    return this->plotterStyle.plotBackgroundBrush;
}



void JKQTBasePlotter::setKeyFontSize(double __value)
{
    if (jkqtp_approximatelyUnequal(this->plotterStyle.keyStyle.fontSize , __value)) {
        this->plotterStyle.keyStyle.fontSize = __value;
        redrawPlot();
    }
}

double JKQTBasePlotter::getKeyFontSize() const
{
    return this->plotterStyle.keyStyle.fontSize;
}


void JKQTBasePlotter::setKeyTextColor(const QColor& __value)
{
    if (this->plotterStyle.keyStyle.textColor != __value) {
        this->plotterStyle.keyStyle.textColor = __value;
        redrawPlot();
    }
}

QColor JKQTBasePlotter::getKeyTextColor() const
{
    return this->plotterStyle.keyStyle.textColor;
}

void JKQTBasePlotter::setKeyItemWidth(double __value)
{
    if (jkqtp_approximatelyUnequal(this->plotterStyle.keyStyle.itemWidth , __value)) {
        this->plotterStyle.keyStyle.itemWidth = __value;
        redrawPlot();
    }
}

double JKQTBasePlotter::getKeyItemWidth() const
{
    return this->plotterStyle.keyStyle.itemWidth;
}

void JKQTBasePlotter::setKeyItemHeight(double __value)
{
    if (jkqtp_approximatelyUnequal(this->plotterStyle.keyStyle.itemHeight , __value)) {
        this->plotterStyle.keyStyle.itemHeight = __value;
        redrawPlot();
    }
}

double JKQTBasePlotter::getKeyItemHeight() const
{
    return this->plotterStyle.keyStyle.itemHeight;
}

void JKQTBasePlotter::setKeyYSeparation(double __value)
{
    if (jkqtp_approximatelyUnequal(this->plotterStyle.keyStyle.ySeparation , __value)) {
        this->plotterStyle.keyStyle.ySeparation = __value;
        redrawPlot();
    }
}

double JKQTBasePlotter::getKeyYSeparation() const
{
    return this->plotterStyle.keyStyle.ySeparation;
}

void JKQTBasePlotter::setKeyLineLength(double __value)
{
    if (jkqtp_approximatelyUnequal(this->plotterStyle.keyStyle.sampleLineLength , __value)) {
        this->plotterStyle.keyStyle.sampleLineLength = __value;
        redrawPlot();
    }
}

double JKQTBasePlotter::getKeyLineLength() const
{
    return this->plotterStyle.keyStyle.sampleLineLength;
}

void JKQTBasePlotter::setKeyXMargin(double __value)
{
    if (jkqtp_approximatelyUnequal(this->plotterStyle.keyStyle.xMargin , __value)) {
        this->plotterStyle.keyStyle.xMargin = __value;
        redrawPlot();
    }
}

double JKQTBasePlotter::getKeyXMargin() const
{
    return this->plotterStyle.keyStyle.xMargin;
}

void JKQTBasePlotter::setKeyYMargin(double __value)
{
    if (jkqtp_approximatelyUnequal(this->plotterStyle.keyStyle.yMargin , __value)) {
        this->plotterStyle.keyStyle.yMargin = __value;
        redrawPlot();
    }
}

double JKQTBasePlotter::getKeyYMargin() const
{
    return this->plotterStyle.keyStyle.yMargin;
}

void JKQTBasePlotter::setKeyXSeparation(double __value)
{
    if (jkqtp_approximatelyUnequal(this->plotterStyle.keyStyle.xSeparation , __value)) {
        this->plotterStyle.keyStyle.xSeparation = __value;
        redrawPlot();
    }
}

double JKQTBasePlotter::getKeyXSeparation() const
{
    return this->plotterStyle.keyStyle.xSeparation;
}

void JKQTBasePlotter::setKeyXOffset(double __value)
{
    if (jkqtp_approximatelyUnequal(this->plotterStyle.keyStyle.xOffset , __value)) {
        this->plotterStyle.keyStyle.xOffset = __value;
        redrawPlot();
    }
}

double JKQTBasePlotter::getKeyXOffset() const
{
    return this->plotterStyle.keyStyle.xOffset;
}

void JKQTBasePlotter::setKeyYOffset(double __value)
{
    if (jkqtp_approximatelyUnequal(this->plotterStyle.keyStyle.yOffset , __value)) {
        this->plotterStyle.keyStyle.yOffset = __value;
        redrawPlot();
    }
}

double JKQTBasePlotter::getKeyYOffset() const
{
    return this->plotterStyle.keyStyle.yOffset;
}

void JKQTBasePlotter::setShowKey(bool __value)
{
    if (this->plotterStyle.keyStyle.visible != __value) {
        this->plotterStyle.keyStyle.visible = __value;
        redrawPlot();
    }
}

bool JKQTBasePlotter::getShowKey() const
{
    return this->plotterStyle.keyStyle.visible;
}

void JKQTBasePlotter::setShowKeyFrame(bool __value)
{
    if (this->plotterStyle.keyStyle.frameVisible != __value) {
        this->plotterStyle.keyStyle.frameVisible = __value;
        redrawPlot();
    }
}

bool JKQTBasePlotter::getShowKeyFrame() const
{
    return this->plotterStyle.keyStyle.frameVisible;
}

void JKQTBasePlotter::setKeyFrameColor(const QColor &__value)
{
    if (this->plotterStyle.keyStyle.frameColor != __value) {
        this->plotterStyle.keyStyle.frameColor = __value;
        redrawPlot();
    }
}

QColor JKQTBasePlotter::getKeyFrameColor() const
{
    return this->plotterStyle.keyStyle.frameColor;
}

void JKQTBasePlotter::setKeyBackgroundColor(const QColor &__value, Qt::BrushStyle __style)
{
    if (this->plotterStyle.keyStyle.backgroundBrush != QBrush(__value, __style)) {
        this->plotterStyle.keyStyle.backgroundBrush = QBrush(__value, __style);
        redrawPlot();
    }
}

void JKQTBasePlotter::setKeyBackgroundBrush(const QBrush &__value)
{
    if (this->plotterStyle.keyStyle.backgroundBrush != __value) {
        this->plotterStyle.keyStyle.backgroundBrush = __value;
        redrawPlot();
    }
}

void JKQTBasePlotter::setKeyBackgroundGradient(const QGradient &__value)
{
    if (this->plotterStyle.keyStyle.backgroundBrush != QBrush(__value)) {
        this->plotterStyle.keyStyle.backgroundBrush = QBrush(__value);
        redrawPlot();
    }
}

void JKQTBasePlotter::setKeyBackgroundTexture(const QImage &__value)
{
    if (this->plotterStyle.keyStyle.backgroundBrush != QBrush(__value)) {
        this->plotterStyle.keyStyle.backgroundBrush = QBrush(__value);
        redrawPlot();
    }
}

void JKQTBasePlotter::setKeyBackgroundTexture(const QPixmap &__value)
{
    if (this->plotterStyle.keyStyle.backgroundBrush != QBrush(__value)) {
        this->plotterStyle.keyStyle.backgroundBrush = QBrush(__value);
        redrawPlot();
    }
}


void JKQTBasePlotter::setKeyFrameWidth(double __value)
{
    if (jkqtp_approximatelyUnequal(this->plotterStyle.keyStyle.frameWidth , __value)) {
        this->plotterStyle.keyStyle.frameWidth = __value;
        redrawPlot();
    }
}

void JKQTBasePlotter::setKeyFrameRounding(double __value)
{
    if (jkqtp_approximatelyUnequal(this->plotterStyle.keyStyle.frameRounding , __value)) {
        this->plotterStyle.keyStyle.frameRounding = __value;
        redrawPlot();
    }
}

double JKQTBasePlotter::getKeyFrameWidth() const
{
    return this->plotterStyle.keyStyle.frameWidth;
}

double JKQTBasePlotter::getKeyFrameRounding() const
{
    return this->plotterStyle.keyStyle.frameRounding;
}

void JKQTBasePlotter::setKeyAutosize(bool __value)
{
    if (this->plotterStyle.keyStyle.autosize != __value) {
        this->plotterStyle.keyStyle.autosize = __value;
        redrawPlot();
    }
}

bool JKQTBasePlotter::getKeyAutosize() const
{
    return this->plotterStyle.keyStyle.autosize;
}

void JKQTBasePlotter::setKeyPosition(const JKQTPKeyPosition &__value)
{
    if (this->plotterStyle.keyStyle.position != __value) {
        this->plotterStyle.keyStyle.position = __value;
        redrawPlot();
    }
}

JKQTPKeyPosition JKQTBasePlotter::getKeyPosition() const
{
    return this->plotterStyle.keyStyle.position;
}

void JKQTBasePlotter::setKeyLayout(const JKQTPKeyLayout &__value)
{
    if (this->plotterStyle.keyStyle.layout != __value) {
        this->plotterStyle.keyStyle.layout = __value;
        redrawPlot();
    }
}

JKQTPKeyLayout JKQTBasePlotter::getKeyLayout() const
{
    return this->plotterStyle.keyStyle.layout;
}

QColor JKQTBasePlotter::getDefaultTextColor() const
{
    return this->plotterStyle.defaultTextColor;
}

double JKQTBasePlotter::getDefaultTextSize() const
{
    return this->plotterStyle.defaultFontSize;
}

QString JKQTBasePlotter::getDefaultTextFontName() const
{
    return this->plotterStyle.defaultFontName;
}

void JKQTBasePlotter::setDefaultTextColor(QColor __value)
{
    if (this->plotterStyle.defaultTextColor != __value) {
        this->plotterStyle.defaultTextColor = __value;
        redrawPlot();
    }
}

void JKQTBasePlotter::setDefaultTextSize(double __value)
{
    if (jkqtp_approximatelyUnequal(this->plotterStyle.defaultFontSize , __value)) {
        this->plotterStyle.defaultFontSize = __value;
        redrawPlot();
    }
}

void JKQTBasePlotter::setDefaultTextFontName(const QString &__value)
{
    if (this->plotterStyle.defaultFontName != __value) {
        this->plotterStyle.defaultFontName = __value;
        redrawPlot();
    }
}

void JKQTBasePlotter::setPlotLabelFontSize(double __value)
{
    if (jkqtp_approximatelyUnequal(this->plotterStyle.plotLabelFontSize , __value)) {
        this->plotterStyle.plotLabelFontSize = __value;
        redrawPlot();
    }
}

double JKQTBasePlotter::getPlotLabelFontSize() const
{
    return this->plotterStyle.plotLabelFontSize;
}

void JKQTBasePlotter::setplotLabelFontName(const QString &__value)
{
    if (this->plotterStyle.plotLabelFontName != __value) {
        this->plotterStyle.plotLabelFontName = __value;
        redrawPlot();
    }
}

QString JKQTBasePlotter::getplotLabelFontName() const
{
    return this->plotterStyle.plotLabelFontName;
}

void JKQTBasePlotter::setPlotLabel(const QString &__value)
{
    if (this->plotLabel != __value) {
        this->plotLabel = __value;
        redrawPlot();
    }
}

QString JKQTBasePlotter::getPlotLabel() const
{
    return this->plotLabel;
}

QColor JKQTBasePlotter::getKeyBackgroundColor() const
{
    return this->plotterStyle.keyStyle.backgroundBrush.color();
}

QBrush JKQTBasePlotter::getKeyBackgroundBrush() const
{
    return this->plotterStyle.keyStyle.backgroundBrush;
}

void JKQTBasePlotter::setPlotBackgroundColor(const QColor &__value)
{
    if (this->plotterStyle.plotBackgroundBrush != QBrush(__value)) {
        this->plotterStyle.plotBackgroundBrush=QBrush(__value);
        redrawPlot();
    }
}

void JKQTBasePlotter::setBackgroundBrush(const QBrush &__value)
{
    if (this->plotterStyle.widgetBackgroundBrush != (__value)) {
        this->plotterStyle.widgetBackgroundBrush=(__value);
        redrawPlot();
    }
}

void JKQTBasePlotter::setExportBackgroundBrush(const QBrush &__value)
{
    if (this->plotterStyle.exportBackgroundBrush != (__value)) {
        this->plotterStyle.exportBackgroundBrush=(__value);
        redrawPlot();
    }
}

void JKQTBasePlotter::setPlotBackgroundBrush(const QBrush &__value)
{
    if (this->plotterStyle.plotBackgroundBrush != (__value)) {
        this->plotterStyle.plotBackgroundBrush=(__value);
        redrawPlot();
    }
}

void JKQTBasePlotter::setBackgroundGradient(const QGradient &__value)
{
    if (this->plotterStyle.widgetBackgroundBrush != QBrush(__value)) {
        this->plotterStyle.widgetBackgroundBrush=QBrush(__value);
        redrawPlot();
    }
}

void JKQTBasePlotter::setExportBackgroundGradient(const QGradient &__value)
{
    if (this->plotterStyle.exportBackgroundBrush != QBrush(__value)) {
        this->plotterStyle.exportBackgroundBrush=QBrush(__value);
        redrawPlot();
    }
}

void JKQTBasePlotter::setPlotBackgroundGradient(const QGradient &__value)
{
    if (this->plotterStyle.plotBackgroundBrush != QBrush(__value)) {
        this->plotterStyle.plotBackgroundBrush=QBrush(__value);
        redrawPlot();
    }

}

void JKQTBasePlotter::setBackgroundTexture(const QPixmap &__value)
{
    if (this->plotterStyle.widgetBackgroundBrush != QBrush(__value)) {
        this->plotterStyle.widgetBackgroundBrush=QBrush(__value);
        redrawPlot();
    }
}

void JKQTBasePlotter::setExportBackgroundTexture(const QPixmap &__value)
{
    if (this->plotterStyle.exportBackgroundBrush != QBrush(__value)) {
        this->plotterStyle.exportBackgroundBrush=QBrush(__value);
        redrawPlot();
    }
}

void JKQTBasePlotter::setPlotBackgroundTexture(const QPixmap &__value)
{
    if (this->plotterStyle.plotBackgroundBrush != QBrush(__value)) {
        this->plotterStyle.plotBackgroundBrush=QBrush(__value);
        redrawPlot();
    }
}

void JKQTBasePlotter::setBackgroundTexture(const QImage &__value)
{
    if (this->plotterStyle.widgetBackgroundBrush != QBrush(__value)) {
        this->plotterStyle.widgetBackgroundBrush=QBrush(__value);
        redrawPlot();
    }
}

void JKQTBasePlotter::setExportBackgroundTexture(const QImage &__value)
{
    if (this->plotterStyle.exportBackgroundBrush != QBrush(__value)) {
        this->plotterStyle.exportBackgroundBrush=QBrush(__value);
        redrawPlot();
    }
}

void JKQTBasePlotter::setPlotBackgroundTexture(const QImage &__value)
{
    if (this->plotterStyle.plotBackgroundBrush != QBrush(__value)) {
        this->plotterStyle.plotBackgroundBrush=QBrush(__value);
        redrawPlot();
    }
}

bool JKQTBasePlotter::isPlotFrameVisible() const
{
    return plotterStyle.plotFrameVisible;
}

QColor JKQTBasePlotter::getPlotFrameColor() const
{
    return plotterStyle.plotFrameColor;
}

double JKQTBasePlotter::getPlotFrameWidth() const
{
    return plotterStyle.plotFrameWidth;
}

double JKQTBasePlotter::getPlotFrameRounding() const
{
    return plotterStyle.plotFrameRounding;
}

void JKQTBasePlotter::setPlotFrameWidth(double __value)
{
    if (jkqtp_approximatelyUnequal(this->plotterStyle.plotFrameWidth , __value)) {
        this->plotterStyle.plotFrameWidth = __value;
        redrawPlot();
    }
}

void JKQTBasePlotter::setPlotFrameRounding(double __value)
{
    if (jkqtp_approximatelyUnequal(this->plotterStyle.plotFrameRounding , __value)) {
        this->plotterStyle.plotFrameRounding = __value;
        redrawPlot();
    }
}

void JKQTBasePlotter::setPlotFrameColor(QColor __value)
{
    if (this->plotterStyle.plotFrameColor != __value) {
        this->plotterStyle.plotFrameColor = __value;
        redrawPlot();
    }
}

void JKQTBasePlotter::setPlotFrameVisible(bool __value)
{
    if (this->plotterStyle.plotFrameVisible != __value) {
        this->plotterStyle.plotFrameVisible = __value;
        redrawPlot();
    }
}

void JKQTBasePlotter::setUseAntiAliasingForText(bool __value)
{
    if (this->plotterStyle.useAntiAliasingForText != __value) {
        this->plotterStyle.useAntiAliasingForText = __value;
        redrawPlot();
    }
}

void JKQTBasePlotter::setUseAntiAliasingForGraphs(bool __value)
{
    if (this->plotterStyle.useAntiAliasingForGraphs != __value) {
        this->plotterStyle.useAntiAliasingForGraphs = __value;
        redrawPlot();
    }
}

void JKQTBasePlotter::setUseAntiAliasingForSystem(bool __value)
{
    if (this->plotterStyle.useAntiAliasingForSystem != __value) {
        this->plotterStyle.useAntiAliasingForSystem = __value;
        redrawPlot();
    }
}

void JKQTBasePlotter::setAxisAspectRatio(double __value)
{
    if (jkqtp_approximatelyUnequal(this->axisAspectRatio , __value)) {
        this->axisAspectRatio = __value;
        redrawPlot();
    }
}

void JKQTBasePlotter::setGridPrinting(bool __value)
{
    this->gridPrinting = __value;
}

bool JKQTBasePlotter::getGridPrinting() const
{
    return this->gridPrinting;
}

void JKQTBasePlotter::setGridPrintingCurrentX(size_t __value)
{
    this->gridPrintingCurrentX = __value;
}

size_t JKQTBasePlotter::getGridPrintingCurrentX() const
{
    return this->gridPrintingCurrentX;
}

void JKQTBasePlotter::setGridPrintingCurrentY(size_t __value)
{
    this->gridPrintingCurrentY = __value;
}

size_t JKQTBasePlotter::getGridPrintingCurrentY() const
{
    return this->gridPrintingCurrentY;
}

void JKQTBasePlotter::setGridPrintingCurrentPos(size_t x, size_t y)
{
    gridPrintingCurrentX=x;
    gridPrintingCurrentY=y;
}

void JKQTBasePlotter::setCurrentSaveDirectory(const QString &__value)
{
    this->currentSaveDirectory = __value;
}

QString JKQTBasePlotter::getCurrentSaveDirectory() const
{
    return this->currentSaveDirectory;
}

void JKQTBasePlotter::setCurrentFileFormat(const QString &__value)
{
    this->currentFileFormat = __value;
}

QString JKQTBasePlotter::getCurrentFileFormat() const
{
    return this->currentFileFormat;
}

void JKQTBasePlotter::setCSVdecimalSeparator(const QString &__value)
{
    plotterStyle.CSVdecimalSeparator = __value;
}

void JKQTBasePlotter::setCSVcommentInitializer(const QString &__value)
{
    plotterStyle.CSVcommentInitializer = __value;
}

void JKQTBasePlotter::enableDebugShowRegionBoxes(bool enabled)
{
    if (plotterStyle.debugShowRegionBoxes != enabled) {
        plotterStyle.debugShowRegionBoxes = enabled;
        redrawPlot();
    }
}

bool JKQTBasePlotter::isDebugShowRegionBoxesEnabled() const
{
    return plotterStyle.debugShowRegionBoxes;
}

QString JKQTBasePlotter::getCSVcommentInitializer() const
{
    return plotterStyle.CSVcommentInitializer;
}

JKQTMathText *JKQTBasePlotter::getMathText() {
    return &mathText;
}

const JKQTMathText *JKQTBasePlotter::getMathText() const {
    return &mathText;
}

JKQTPHorizontalAxis *JKQTBasePlotter::getXAxis() {
    return xAxis;
}

JKQTPVerticalAxis *JKQTBasePlotter::getYAxis() {
    return yAxis;
}

const JKQTPHorizontalAxis *JKQTBasePlotter::getXAxis() const {
    return xAxis;
}

const JKQTPVerticalAxis *JKQTBasePlotter::getYAxis() const {
    return yAxis;
}

QAction *JKQTBasePlotter::getActionSavePlot() const {
    return this->actSavePlot;
}

QAction *JKQTBasePlotter::getActionSaveData() const {
    return this->actSaveData;
}

QAction *JKQTBasePlotter::getActionCopyData() const {
    return this->actCopyData;
}

QAction *JKQTBasePlotter::getActionCopyPixelImage() const {
    return this->actCopyPixelImage;
}

QAction *JKQTBasePlotter::getActionCopyMatlab() const {
    return this->actCopyMatlab;
}

QAction *JKQTBasePlotter::getActionSavePDF() const {
    return this->actSavePDF;
}

QAction *JKQTBasePlotter::getActionSavePix() const {
    return this->actSavePix;
}

QAction *JKQTBasePlotter::getActionSaveSVG() const {
    return this->actSaveSVG;
}

QAction *JKQTBasePlotter::getActionPrint() const {
    return this->actPrint;
}

QAction *JKQTBasePlotter::getActionSaveCSV() const {
    return this->actSaveCSV;
}

QAction *JKQTBasePlotter::getActionZoomAll() const {
    return this->actZoomAll;
}

QAction *JKQTBasePlotter::getActionZoomIn() const {
    return this->actZoomIn;
}

QAction *JKQTBasePlotter::getActionZoomOut() const {
    return this->actZoomOut;
}

QAction *JKQTBasePlotter::getActionShowPlotData() const {
    return this->actShowPlotData;
}

JKQTBasePlotter::AdditionalActionsMap JKQTBasePlotter::getLstAdditionalPlotterActions() const {
    return this->lstAdditionalPlotterActions;
}

QString JKQTBasePlotter::getCSVdecimalSeparator() const
{
    return plotterStyle.CSVdecimalSeparator;
}

void JKQTBasePlotter::registerAdditionalAction(const QString &key, QAction *act)
{
    if (!lstAdditionalPlotterActions.contains(key)) {
        QList<QPointer<QAction> > l;
        lstAdditionalPlotterActions.insert(key, l);
    }
    lstAdditionalPlotterActions[key].append(act);

    AdditionalActionsMapIterator it(lstAdditionalPlotterActions);
    while (it.hasNext()) {
        it.next();
        for (int i=it.value().size()-1; i>=0; i--) {
            if (!it.value().at(i)) {
                lstAdditionalPlotterActions[it.key()].removeAt(i);
            }
        }
    }
}

void JKQTBasePlotter::deregisterAdditionalAction(QAction *act)
{
    AdditionalActionsMapIterator it(lstAdditionalPlotterActions);
    while (it.hasNext()) {
        it.next();
        for (int i=it.value().size()-1; i>=0; i--) {
            if (it.value().at(i)==act) {
                lstAdditionalPlotterActions[it.key()].removeAt(i);
            }
        }
    }
}

bool JKQTBasePlotter::getMasterSynchronizeWidth() const {
    return this->masterSynchronizeWidth;
}

bool JKQTBasePlotter::getMasterSynchronizeHeight() const {
    return this->masterSynchronizeHeight;
}


void JKQTBasePlotter::setFontSizePrintMultiplier(double __value)
{
    this->fontSizePrintMultiplier = __value;
}

double JKQTBasePlotter::getFontSizePrintMultiplier() const
{
    return this->fontSizePrintMultiplier;
}

void JKQTBasePlotter::setLineWidthPrintMultiplier(double __value)
{
    this->lineWidthPrintMultiplier = __value;
}

double JKQTBasePlotter::getLineWidthPrintMultiplier() const
{
    return this->lineWidthPrintMultiplier;
}

double JKQTBasePlotter::getFontSizeMultiplier() const {
    return this->fontSizeMultiplier;
}

double JKQTBasePlotter::getLineWidthMultiplier() const {
    return this->lineWidthMultiplier;
}

void JKQTBasePlotter::copyData() {
    loadUserSettings();
    QString result="";
    QString qfresult;
    QSet<int> cols=getDataColumnsByUser();
    {
        QTextStream txt(&result);
        QLocale loc=QLocale::system();
        loc.setNumberOptions(QLocale::OmitGroupSeparator);
        QChar dp=loc.decimalPoint();
        QString sep="\t";
        datastore->saveCSV(txt, cols, sep, QString(dp), " ", "\"");
        txt.flush();
    }
    {
        QTextStream txt(&qfresult);
        datastore->saveCSV(txt, cols, ",", ".", "#!", "\"");
        txt.flush();
    }
    QClipboard *clipboard = QApplication::clipboard();
    QMimeData* mime=new QMimeData();
    mime->setText(result);
    mime->setData("jkqtplotter/csv", qfresult.toUtf8());
    clipboard->setMimeData(mime);
    //clipboard->setText(result);
    saveUserSettings();
}


void JKQTBasePlotter::copyDataMatlab() {
    loadUserSettings();
    QString result="";
    {
        QTextStream txt(&result);
        datastore->saveMatlab(txt, getDataColumnsByUser());
        txt.flush();
    }
    QClipboard *clipboard = QApplication::clipboard();
    clipboard->setText(result);
    saveUserSettings();
}

void JKQTBasePlotter::saveData(const QString& filename, const QString &format) {
    loadUserSettings();
    QStringList fileformats;
    QStringList fileformatIDs;
    fileformats<<tr("Comma Separated Values (*.csv *.dat)");
    fileformatIDs<<"csv";
    fileformats<<tr("Tab Separated Values (*.txt)");
    fileformatIDs<<"tab";
    fileformats<<tr("Semicolon Separated Values [German Excel] (*.csv *.dat *.txt)");
    fileformatIDs<<"gex";
    fileformats<<tr("Semicolon Separated Values (*.csv *.dat *.txt)");
    fileformatIDs<<"sem";
    fileformats<<tr("SYLK spreadsheet (*.slk)");
    fileformatIDs<<"slk";
    fileformats<<tr("DIF: Data Interchange Format (*.dif)");
    fileformatIDs<<"dif";
    fileformats<<tr("Matlab Script (*.m)");
    fileformatIDs<<"m";

    for (int i=0; i<jkqtpSaveDataAdapters.size(); i++) {
        fileformats<<jkqtpSaveDataAdapters[i]->getFilter();
        fileformatIDs<<QString("custom%1").arg(i);
    }



    QString fn=filename;
    QString fmt=format.toLower();
    if (fmt.isEmpty()) {
        QString e=QFileInfo(filename).suffix().toLower();//  jkqtp_tolower(extract_file_ext(fn.toStdString()));
        if (e=="csv" || e=="dat") {
            fmt="csv";
        } else if (e=="txt") {
            fmt="tab";
        } else if ((e=="slk")||(e=="sylk")) {
            fmt="slk";
        } else if (e=="dif") {
            fmt="dif";
        } else if (e=="m") {
            fmt="m";
        }
    }
    if (fn.isEmpty()) {
        QString selectedFilter=currentDataFileFormat;
        //qDebug()<<"before: currentSaveDirectory="<<currentSaveDirectory;
        fn = QFileDialog::getSaveFileName(nullptr, tr("Save Plot Data"),
                                    currentSaveDirectory,
                                    fileformats.join(";;"),
                                    &selectedFilter);
        if (!fn.isEmpty()) {
            currentSaveDirectory=QFileInfo(fn).absolutePath();
            currentDataFileFormat=selectedFilter;
        }
        //qDebug()<<"after: currentSaveDirectory="<<currentSaveDirectory;
        fmt="csv";
        for (int i=0; i<fileformats.size(); i++) {
            if (selectedFilter.contains(fileformats[i])) {
                fmt=fileformatIDs[i] ;
            }
        }


    }

    saveUserSettings();
    if (!fn.isEmpty()) {

        if (fmt=="csv") {
            saveAsCSV(fn);
        } else if (fmt=="tab") {
            saveAsTabSV(fn);
        } else if (fmt=="gex") {
            saveAsGerExcelCSV(fn);
        } else if (fmt=="sem") {
            saveAsSemicolonSV(fn);
        } else if (fmt=="slk") {
            saveAsSYLK(fn);
        } else if (fmt=="dif") {
            saveAsDIF(fn);
        } else if (fmt=="m") {
            saveAsMatlab(fn);
        } else if (fmt.startsWith("custom")) {
            QString fidx=fmt;
            fidx=fidx.remove(0,6);
            int idx=fidx.toInt();
            if (idx>=0 && idx<jkqtpSaveDataAdapters.size() && jkqtpSaveDataAdapters[idx]) {
                QStringList cn;
                QList<QVector<double> > dataset=datastore->getData(&cn);
                jkqtpSaveDataAdapters[idx]->saveJKQTPData(fn, dataset, cn);
            }
        }
    }
}

void JKQTBasePlotter::saveAsCSV(const QString& filename) {
    saveAsCSV(filename, plotterStyle.CSVdecimalSeparator, plotterStyle.CSVcommentInitializer);
}

void JKQTBasePlotter::saveAsCSV(const QString &filename, const QString &decimalSeparator, const QString &commentInitializer)
{
    loadUserSettings();
    QString fn=filename;
    if (fn.isEmpty()) {
        fn = QFileDialog::getSaveFileName(nullptr, tr("Save Plot Data"),
                                    currentSaveDirectory,
                                    tr("Comma Separated Values (*.csv *.dat)"));
        if (!fn.isEmpty()) currentSaveDirectory=QFileInfo(fn).absolutePath();
    }

    if (!fn.isEmpty()) {
        datastore->saveCSV(fn, getDataColumnsByUser(), ", ", decimalSeparator, commentInitializer);
    }
    saveUserSettings();

}
void JKQTBasePlotter::saveAsSemicolonSV(const QString& filename) {
    saveAsSemicolonSV(filename, plotterStyle.CSVdecimalSeparator, plotterStyle.CSVcommentInitializer);
}

void JKQTBasePlotter::saveAsSemicolonSV(const QString& filename, const QString &decimalSeparator, const QString &commentInitializer) {
    loadUserSettings();
    QString fn=filename;
    if (fn.isEmpty()) {
        fn = QFileDialog::getSaveFileName(nullptr, tr("Save Plot Data"),
                                    currentSaveDirectory,
                                    tr("Comma Separated Values (*.csv *.dat)"));
        if (!fn.isEmpty()) currentSaveDirectory=QFileInfo(fn).absolutePath();
    }

    if (!fn.isEmpty()) {
        datastore->saveCSV(fn, getDataColumnsByUser(), ";", decimalSeparator, commentInitializer);
    }
    saveUserSettings();
}

void JKQTBasePlotter::saveAsTabSV(const QString& filename) {
    saveAsTabSV(filename, plotterStyle.CSVdecimalSeparator, plotterStyle.CSVcommentInitializer);
}

void JKQTBasePlotter::saveAsTabSV(const QString& filename, const QString &decimalSeparator, const QString &commentInitializer) {
    loadUserSettings();
    QString fn=filename;
    if (fn.isEmpty()) {
        fn = QFileDialog::getSaveFileName(nullptr, tr("Save Plot Data"),
                                    currentSaveDirectory,
                                    tr("Tabulator Separated Values (*.txt)"));
        if (!fn.isEmpty()) currentSaveDirectory=QFileInfo(fn).absolutePath();
    }

    if (!fn.isEmpty()) {
        datastore->saveCSV(fn, getDataColumnsByUser(), "\t", decimalSeparator, commentInitializer);
    }
    saveUserSettings();
}

void JKQTBasePlotter::saveAsSYLK(const QString& filename) {
    loadUserSettings();
    QString fn=filename;
    if (fn.isEmpty()) {
        fn = QFileDialog::getSaveFileName(nullptr, tr("Save Plot Data"),
                                    currentSaveDirectory,
                                    tr("SYLK spreadsheet (*.slk)"));
        if (!fn.isEmpty()) currentSaveDirectory=QFileInfo(fn).absolutePath();
    }

    if (!fn.isEmpty()) {
        datastore->saveSYLK(fn, getDataColumnsByUser());
    }
    saveUserSettings();
}

void JKQTBasePlotter::saveAsMatlab(const QString& filename) {
    loadUserSettings();
    QString fn=filename;
    if (fn.isEmpty()) {
        fn = QFileDialog::getSaveFileName(nullptr, tr("Save Plot Data"),
                                    currentSaveDirectory,
                                    tr("Matlab Script (*.m)"));
        if (!fn.isEmpty()) currentSaveDirectory=QFileInfo(fn).absolutePath();
    }

    if (!fn.isEmpty()) {
        datastore->saveMatlab(fn, getDataColumnsByUser());
    }
    saveUserSettings();
}

void JKQTBasePlotter::saveAsDIF(const QString& filename) {
    loadUserSettings();
    QString fn=filename;
    if (fn.isEmpty()) {
        fn = QFileDialog::getSaveFileName(nullptr, tr("Save Plot Data"),
                                    currentSaveDirectory,
                                    tr("DIF: Data Interchange Format (*.dif)"));
        if (!fn.isEmpty()) currentSaveDirectory=QFileInfo(fn).absolutePath();
    }

    if (!fn.isEmpty()) {
        datastore->saveDIF(fn, getDataColumnsByUser());
    }
    saveUserSettings();
}


void JKQTBasePlotter::saveAsGerExcelCSV(const QString& filename) {
    loadUserSettings();
    QString fn=filename;
    if (fn.isEmpty()) {
        fn = QFileDialog::getSaveFileName(nullptr, tr("Save Plot Data"),
                                    currentSaveDirectory,
                                    tr("Tabulator Separated Values (*.txt)"));
        if (!fn.isEmpty()) currentSaveDirectory=QFileInfo(fn).absolutePath();
    }

    if (!fn.isEmpty()) {
        datastore->saveCSV(fn, getDataColumnsByUser(), ";", ",", " ", "\"");
    }
    saveUserSettings();
}

void JKQTBasePlotter::saveAsPDF(const QString& filename, bool displayPreview) {
    loadUserSettings();
    QString fn=filename;
    if (fn.isEmpty()) {
        fn = QFileDialog::getSaveFileName(nullptr, tr("Save Plot"),
                                    currentSaveDirectory,
                                    tr("PDF File (*.pdf)"));
        if (!fn.isEmpty()) currentSaveDirectory=QFileInfo(fn).absolutePath();
    }

    if (!fn.isEmpty()) {
        QPrinter* printer=new QPrinter;
        bool doLandscape=widgetWidth>widgetHeight;
        if (gridPrinting) {
            gridPrintingCalc();
            doLandscape=gridPrintingSize.width()>gridPrintingSize.height();
        }
        if (doLandscape) {
            printer->setOrientation(QPrinter::Landscape);
        } else {
            printer->setOrientation(QPrinter::Portrait);
        }
        printer->setOutputFormat(QPrinter::PdfFormat);
        printer->setColorMode(QPrinter::Color);
        printer->setOutputFileName(fn);
        printer->setPageMargins(0,0,0,0,QPrinter::Millimeter);
        printer->setColorMode(QPrinter::Color);
        printpreviewNew(printer, true, -1.0, -1.0, displayPreview);
        delete printer;
    }
    saveUserSettings();
}


void JKQTBasePlotter::saveImage(const QString& filename, bool displayPreview) {
    loadUserSettings();
    QString fn=filename;
    QStringList filt;
    filt<<tr("Portable Document Format PDF [Qt] (*.pdf)");
    filt<<tr("Scalable Vector Graphics [Qt] (*.svg)");
    filt<<tr("PNG Image [Qt] (*.png)");
    filt<<tr("BMP Image [Qt] (*.bmp)");
    filt<<tr("TIFF Image [Qt] (*.tif *.tiff)");
    filt<<tr("JPEG Image [Qt] (*.jpg *.jpeg)");
    const int filtStartSize=filt.size();
    for (int i=0; i<jkqtpPaintDeviceAdapters.size(); i++) {
        filt<<jkqtpPaintDeviceAdapters[i]->getFilter();
    }
    int qtwritersidx=filt.size();
    QList<QByteArray> writerformats=QImageWriter::supportedImageFormats();
    for (int i=0; i<writerformats.size(); i++) {
        filt<<QString("%1 Image (*.%2)").arg(QString(writerformats[i]).toUpper()).arg(QString(writerformats[i].toLower()));
    }
    QString selFormat="";
    if (fn.isEmpty()) {
        selFormat=currentFileFormat;
        fn = QFileDialog::getSaveFileName(nullptr, tr("Save Plot"),
                                    currentSaveDirectory,
                                          filt.join(";;"), &selFormat);
        if (!fn.isEmpty()) {
            currentSaveDirectory=QFileInfo(fn).absolutePath();
            currentFileFormat=selFormat;
        }
    }

    //qDebug()<<"fn="<<fn<<"  selFormat="<<selFormat;

    saveUserSettings();
    if (!fn.isEmpty()) {
        int filtID=filt.indexOf(selFormat);
        bool isWithSpecialDeviceAdapter=filtID>=filtStartSize && filtID<filtStartSize+jkqtpPaintDeviceAdapters.size();
        int adapterID=filtID-filtStartSize;
        QString e=QFileInfo(filename).suffix().toLower();
        if (!isWithSpecialDeviceAdapter) {
            for (int i=0; i<jkqtpPaintDeviceAdapters.size(); i++) {
                if (jkqtpPaintDeviceAdapters[i]->getFileExtension().contains(e)) {
                    adapterID=i;
                    isWithSpecialDeviceAdapter=true;
                    break;
                }
            }
        }
        //qDebug()<<"filtID="<<filtID<<"   isWithSpecialDeviceAdapter="<<isWithSpecialDeviceAdapter<<"   adapterID="<<adapterID;
        if (filtID==0) {
            saveAsPDF(fn, displayPreview);
        } else if (filtID==1) {
            saveAsSVG(fn, displayPreview);
        } else if (isWithSpecialDeviceAdapter && adapterID>=0 && adapterID<jkqtpPaintDeviceAdapters.size()) {
            QString tempFM="";
            if (QFile::exists(fn)) {
#ifdef QFWIDLIB_LIBRARY
                QFTemporaryFile* tf=new QFTemporaryFile();
#else
                QTemporaryFile* tf=new QTemporaryFile();
#endif
                tf->open();
                tempFM=tf->fileName();
                tf->close();
                delete tf;
                QFile::copy(fn, tempFM);
            }

            mathText.setUseUnparsed(!jkqtpPaintDeviceAdapters[adapterID]->useLatexParser());

            gridPrintingCalc();
            QPaintDevice* svg=jkqtpPaintDeviceAdapters[adapterID]->createPaintdevice(fn, jkqtp_roundTo<int>(gridPrintingSize.width()), jkqtp_roundTo<int>(gridPrintingSize.height()));

            if (!printpreviewNew(svg, jkqtpPaintDeviceAdapters[adapterID]->getSetAbsolutePaperSize(), jkqtpPaintDeviceAdapters[adapterID]->getPrintSizeXInMM(), jkqtpPaintDeviceAdapters[adapterID]->getPrintSizeYInMM(), displayPreview)) {
                delete svg;


                if (QFile::exists(tempFM)) {
                    QFile::copy(tempFM, fn);
                    QFile::remove(tempFM);
                }
            } else {
                delete svg;
                svg=jkqtpPaintDeviceAdapters[adapterID]->createPaintdeviceMM(fn,printSizeX_Millimeter,printSizeY_Millimeter);
                printpreviewPaintRequestedNew(svg);
                delete svg;
            }

        } else {
            saveAsPixelImage(fn, displayPreview, writerformats.value(filtID-qtwritersidx, QByteArray()));
        }
    }
}


void JKQTBasePlotter::saveAsPixelImage(const QString& filename, bool displayPreview, const QByteArray& outputFormat) {
    loadUserSettings();
    QString fn=filename;
    QStringList filt;
    QList<QByteArray> writerformats=QImageWriter::supportedImageFormats();
    for (int i=0; i<writerformats.size(); i++) {
        filt<<QString("%1 Image (*.%2)").arg(QString(writerformats[i]).toUpper()).arg(QString(writerformats[i].toLower()));
    }
    /*filt<<tr("PNG Image (*.png)");
    filt<<tr("BMP Image (*.bmp)");
    filt<<tr("TIFF Image (*.tif *.tiff)");
    filt<<tr("JPEG Image (*.jpg *.jpeg)");
    filt<<tr("X11 Bitmap (*.xbm)");
    filt<<tr("X11 Pixmap (*.xpm)");*/
    QString selFormat;
    if (fn.isEmpty()) {
        selFormat=currentFileFormat;
        fn = QFileDialog::getSaveFileName(nullptr, tr("Save Plot"),
                                    currentSaveDirectory,
                                          filt.join(";;"), &selFormat);
        if (!fn.isEmpty()) currentSaveDirectory=QFileInfo(fn).absolutePath();
    }

    saveUserSettings();
    if (!fn.isEmpty()) {
        int filtID=filt.indexOf(selFormat);
        //QString ext=tolower(extract_file_ext(fn.toStdString()));
        QString form="NONE";
        if (filtID>=0 && filtID<writerformats.size()) {
            form=writerformats[filtID];
        }
        if (outputFormat.size()>0) {
            form =outputFormat;
        }
        /*if (filtID==2 || ext=="tif" || ext=="tiff") { // currentFileFormat
            form="TIFF";
        } else if (filtID==0 || ext=="png") {
            form="PNG";
        } else if (filtID==1 || ext=="bmp") {
            form="BMP";
        } else if (filtID==3 || ext=="jpg" || ext=="jpeg") {
            form="JPEG";
        } else if (ext=="ppm") {
            form="PPM";
        } else if (filtID==4 || ext=="xbm") {
            form="XBM";
        } else if (filtID==5 || ext=="xpm") {
            form="XPM";
        }*/


        gridPrintingCalc();
        //std::cout<<gridPrintingSize.width()<<", "<<gridPrintingSize.height()<<std::endl;

        if (!displayPreview) {
            printSizeX_Millimeter=widgetWidth;
            printSizeY_Millimeter=widgetHeight;
        }

        if (!displayPreview || exportpreview(gridPrintingSize, false)) {

            QImage png(QSizeF(double(printSizeX_Millimeter)*1.1, double(printSizeY_Millimeter)*1.1).toSize(), QImage::Format_ARGB32);
            png.fill(Qt::transparent);
            JKQTPEnhancedPainter painter;
            painter.begin(&png);
            painter.setRenderHint(JKQTPEnhancedPainter::NonCosmeticDefaultPen, true);
            painter.setRenderHint(JKQTPEnhancedPainter::Antialiasing);
            painter.setRenderHint(JKQTPEnhancedPainter::TextAntialiasing);
            painter.setRenderHint(JKQTPEnhancedPainter::SmoothPixmapTransform);
            painter.setRenderHint(JKQTPEnhancedPainter::HighQualityAntialiasing);

            /*calcPlotScaling(painter);
            gridPaint(painter, png.rect().size());*/\
            //qDebug()<<QSize(printSizeX_Millimeter, printSizeY_Millimeter);
            exportpreviewPaintRequested(painter, QSize(jkqtp_roundTo<int>(printSizeX_Millimeter), jkqtp_roundTo<int>(printSizeY_Millimeter)));
            painter.end();
            if (form=="NONE") png.save(fn);
            else png.save(fn, form.toLatin1().data());
        }
    }
}


void JKQTBasePlotter::copyPixelImage() {
    /*qDebug()<<gridPrintingSize.width()<<", "<<gridPrintingSize.height();
    qDebug()<<widgetWidth<<", "<<widgetHeight;
    qDebug()<<paintMagnification;*/
   /* QImage png(gridPrintingSize, QImage::Format_ARGB32);
    {
        JKQTPEnhancedPainter painter;
        painter.begin(&png);
        painter.setRenderHint(JKQTPEnhancedPainter::Antialiasing);
        painter.setRenderHint(JKQTPEnhancedPainter::TextAntialiasing);
        painter.setRenderHint(JKQTPEnhancedPainter::SmoothPixmapTransform);
        painter.setRenderHint(JKQTPEnhancedPainter::HighQualityAntialiasing);
        //calcPlotScaling(painter);
        gridPaint(painter, gridPrintingSize);
        painter.end();
    }

    QClipboard *clipboard = QApplication::clipboard();
    qDebug()<<"clipboard before adding content:\n"<<clipboard->mimeData()->formats();
    clipboard->setImage(png);
    qDebug()<<"clipboard after adding content:\n"<<clipboard->mimeData()->formats();

*/

    gridPrintingCalc();
    //std::cout<<gridPrintingSize.width()<<", "<<gridPrintingSize.height()<<std::endl;
    printSizeX_Millimeter=gridPrintingSize.width();
    printSizeY_Millimeter=gridPrintingSize.height();

    if (exportpreview(gridPrintingSize, false)) {
        QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));

        //if (exportpreview(gridPrintingSize, false)) {
        QImage png(QSizeF(double(printSizeX_Millimeter), double(printSizeY_Millimeter)).toSize(), QImage::Format_ARGB32);
            {
                png.fill(Qt::transparent);
                JKQTPEnhancedPainter painter;
                painter.begin(&png);
                painter.setRenderHint(JKQTPEnhancedPainter::NonCosmeticDefaultPen, true);
                painter.setRenderHint(JKQTPEnhancedPainter::Antialiasing);
                painter.setRenderHint(JKQTPEnhancedPainter::TextAntialiasing);
                painter.setRenderHint(JKQTPEnhancedPainter::SmoothPixmapTransform);
                painter.setRenderHint(JKQTPEnhancedPainter::HighQualityAntialiasing);

                /*calcPlotScaling(painter);
                gridPaint(painter, png.rect().size());*/
                exportpreviewPaintRequested(painter, QSizeF(printSizeX_Millimeter, printSizeY_Millimeter).toSize());
                painter.end();
            }
        QByteArray svgdata;
            {

                QBuffer buffer(&svgdata);
                QSvgGenerator* svg=new QSvgGenerator;
                svg->setResolution(96);
                //svg->setResolution(300);
                QSize size=QSizeF(printSizeX_Millimeter, printSizeX_Millimeter).toSize();
                double factor=double(size.width())/double(widgetWidth)*paintMagnification;
                // TODO: CORRECT THIS
                //qDebug()<<size;
                svg->setSize(size);
                svg->setOutputDevice(&buffer);
                JKQTPEnhancedPainter painter;
                painter.begin(svg);
                painter.scale(factor,factor);
                printAspect=printSizeY_Millimeter/printSizeX_Millimeter;
                exportpreviewPaintRequested(painter, QSizeF(widgetWidth/paintMagnification, widgetWidth/paintMagnification*printAspect).toSize());
                painter.end();
                delete svg;

            }





            QClipboard *clipboard = QApplication::clipboard();
            //qDebug()<<"clipboard before adding content:\n"<<clipboard->mimeData()->formats();
            //clipboard->setImage(png);
            clipboard->clear();
            clipboard->setPixmap(QPixmap::fromImage(png));
            QMimeData* mime=new QMimeData();
            mime->setImageData(QPixmap::fromImage(png));
            QBuffer pngbuf;
            png.save(&pngbuf, "png");
            mime->setData("image/x-png", pngbuf.data());
            png.save(&pngbuf, "bmp");
            mime->setData("image/bmp", pngbuf.data());
            mime->setData("image/svg+xml", svgdata);
            clipboard->setMimeData(mime);
            //qDebug()<<"clipboard after adding content:\n"<<clipboard->mimeData()->formats();




            QApplication::restoreOverrideCursor();

        //}
    }


}

void JKQTBasePlotter::saveAsSVG(const QString& filename, bool displayPreview) {
    loadUserSettings();
    QString fn=filename;
    if (fn.isEmpty()) {
        fn = QFileDialog::getSaveFileName(nullptr, tr("Save Plot"),
                                    currentSaveDirectory,
                                    tr("SVG Image (*.svg)"));
        if (!fn.isEmpty()) currentSaveDirectory=QFileInfo(fn).absolutePath();
    }

    if (!fn.isEmpty()) {
        QString tempFM="";
        if (QFile::exists(fn)) {
#ifdef QFWIDLIB_LIBRARY
                QFTemporaryFile* tf=new QFTemporaryFile();
#else
                QTemporaryFile* tf=new QTemporaryFile();
#endif
            tf->open();
            tempFM=tf->fileName();
            tf->close();
            delete tf;
            QFile::copy(fn, tempFM);
        }

        gridPrintingCalc();
        QSvgGenerator* svg=new QSvgGenerator;
        svg->setResolution(96);
        QSize size=QSizeF(gridPrintingSize.width()*25.4/svg->resolution(), gridPrintingSize.height()*25.4/svg->resolution()).toSize();
        svg->setSize(size);
        svg->setFileName(fn);

        if (!printpreviewNew(svg, true, -1.0, -1.0, displayPreview)) {
            if (QFile::exists(tempFM)) {
                QFile::copy(tempFM, fn);
                QFile::remove(tempFM);
            }
        }

        delete svg;

    }
    saveUserSettings();
}


void JKQTBasePlotter::setPlotBorder(int left, int right, int top, int bottom){
    plotterStyle.plotBorderTop=top;
    plotterStyle.plotBorderLeft=left;
    plotterStyle.plotBorderBottom=bottom;
    plotterStyle.plotBorderRight=right;
    //updateGeometry();
    if (emitPlotSignals) emit plotUpdated();
}

void JKQTBasePlotter::setPlotBorderLeft(int left)
{
    plotterStyle.plotBorderLeft=left;
    if (emitPlotSignals) emit plotUpdated();
}

void JKQTBasePlotter::setPlotBorderRight(int right)
{
    plotterStyle.plotBorderRight=right;
    if (emitPlotSignals) emit plotUpdated();
}

void JKQTBasePlotter::setPlotBorderTop(int top)
{
    plotterStyle.plotBorderTop=top;
    if (emitPlotSignals) emit plotUpdated();
}

void JKQTBasePlotter::setPlotBorderBottom(int bottom)
{
    plotterStyle.plotBorderBottom=bottom;
    if (emitPlotSignals) emit plotUpdated();
}

void JKQTBasePlotter::synchronizeToMaster(JKQTBasePlotter* master, SynchronizationDirection synchronizeDirection, bool synchronizeAxisLength, bool synchronizeZoomingMasterToSlave, bool synchronizeZoomingSlaveToMaster) {
    // remove old connections
    if (masterPlotterX && (synchronizeDirection==sdXAxis ||  synchronizeDirection==sdXYAxes)) {
        disconnect(masterPlotterX, SIGNAL(zoomChangedLocally(double,double,double,double,JKQTBasePlotter*)),
                       this, SLOT(synchronizeXAxis(double,double,double,double,JKQTBasePlotter*)));
        disconnect(this, SIGNAL(zoomChangedLocally(double,double,double,double,JKQTBasePlotter*)),
                       masterPlotterX, SLOT(synchronizeXAxis(double,double,double,double,JKQTBasePlotter*)));
    }
    if (masterPlotterY && (synchronizeDirection==sdYAxis ||  synchronizeDirection==sdXYAxes)) {
        disconnect(masterPlotterY, SIGNAL(zoomChangedLocally(double,double,double,double,JKQTBasePlotter*)),
                       this, SLOT(synchronizeYAxis(double,double,double,double,JKQTBasePlotter*)));
        disconnect(this, SIGNAL(zoomChangedLocally(double,double,double,double,JKQTBasePlotter*)),
                       masterPlotterY, SLOT(synchronizeYAxis(double,double,double,double,JKQTBasePlotter*)));
    }

    // store new connection settings
    if (synchronizeDirection==sdXAxis ||  synchronizeDirection==sdXYAxes) {
        masterPlotterX=master;
        masterSynchronizeWidth=synchronizeAxisLength;
    }
    if (synchronizeDirection==sdYAxis ||  synchronizeDirection==sdXYAxes) {
        masterPlotterY=master;
        masterSynchronizeHeight=synchronizeAxisLength;
    }

    // connect widgets (if required)
    if (master) {
        if (synchronizeDirection==sdXAxis ||  synchronizeDirection==sdXYAxes) {
            if (synchronizeZoomingMasterToSlave) {
                connect(masterPlotterX, SIGNAL(zoomChangedLocally(double,double,double,double,JKQTBasePlotter*)),
                                   this, SLOT(synchronizeXAxis(double,double,double,double,JKQTBasePlotter*)));
            }
            if (synchronizeZoomingSlaveToMaster) {
                connect(this, SIGNAL(zoomChangedLocally(double,double,double,double,JKQTBasePlotter*)),
                                   masterPlotterX, SLOT(synchronizeXAxis(double,double,double,double,JKQTBasePlotter*)));

            }
        }
        if (synchronizeDirection==sdYAxis ||  synchronizeDirection==sdXYAxes) {
            if (synchronizeZoomingMasterToSlave) {
                connect(masterPlotterY, SIGNAL(zoomChangedLocally(double,double,double,double,JKQTBasePlotter*)),
                                   this, SLOT(synchronizeYAxis(double,double,double,double,JKQTBasePlotter*)));
            }
            if (synchronizeZoomingSlaveToMaster) {
                connect(this, SIGNAL(zoomChangedLocally(double,double,double,double,JKQTBasePlotter*)),
                                   masterPlotterY, SLOT(synchronizeYAxis(double,double,double,double,JKQTBasePlotter*)));

            }
        }
    }

}

void JKQTBasePlotter::synchronizeXToMaster(JKQTBasePlotter *master, bool synchronizeAxisLength, bool synchronizeZoomingMasterToSlave, bool synchronizeZoomingSlaveToMaster)
{
    synchronizeToMaster(master, sdXAxis, synchronizeAxisLength, synchronizeZoomingMasterToSlave, synchronizeZoomingSlaveToMaster);
}

void JKQTBasePlotter::synchronizeYToMaster(JKQTBasePlotter *master, bool synchronizeAxisLength, bool synchronizeZoomingMasterToSlave, bool synchronizeZoomingSlaveToMaster)
{
    synchronizeToMaster(master, sdYAxis, synchronizeAxisLength, synchronizeZoomingMasterToSlave, synchronizeZoomingSlaveToMaster);
}

void JKQTBasePlotter::resetMasterSynchronization(JKQTBasePlotter::SynchronizationDirection synchronizeDirection) {
    synchronizeToMaster(nullptr, synchronizeDirection, false, false, false);
}


void JKQTBasePlotter::synchronizeXAxis(double newxmin, double newxmax, double /*newymin*/, double /*newymax*/, JKQTBasePlotter * /*sender*/) {
    bool oldemitSignals=emitSignals;
    emitSignals=false;
    setX(newxmin, newxmax);
    emitSignals=oldemitSignals;
}

void JKQTBasePlotter::synchronizeYAxis(double /*newxmin*/, double /*newxmax*/, double newymin, double newymax, JKQTBasePlotter * /*sender*/) {
    bool oldemitSignals=emitSignals;
    emitSignals=false;
    setY(newymin, newymax);
    emitSignals=oldemitSignals;
}

void JKQTBasePlotter::synchronizeXYAxis(double newxmin, double newxmax, double newymin, double newymax, JKQTBasePlotter * /*sender*/) {
    bool oldemitSignals=emitSignals;
    emitSignals=false;
    setXY(newxmin, newxmax, newymin, newymax);
    emitSignals=oldemitSignals;
}




void JKQTBasePlotter::drawGraphs(JKQTPEnhancedPainter& painter){
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaaot(QString("JKQTBasePlotter::plotGraphs"));
#endif
    if (datastore==nullptr || graphs.isEmpty()) return;
    //qDebug()<<"start JKQTBasePlotter::plotGraphs()";
    if (useClipping) {
        QRegion cregion(jkqtp_roundTo<int>(internalPlotBorderLeft), jkqtp_roundTo<int>(internalPlotBorderTop), jkqtp_roundTo<int>(internalPlotWidth), jkqtp_roundTo<int>(internalPlotHeight));
        painter.setClipping(true);
        painter.setClipRegion(cregion);
    }

    int ibTop=jkqtp_roundTo<int>(internalPlotBorderTop_notIncludingOutsidePlotSections-plotterStyle.plotBorderTop-internalTitleHeight);
    int ibLeft=jkqtp_roundTo<int>(internalPlotBorderLeft_notIncludingOutsidePlotSections-plotterStyle.plotBorderLeft);
    int ibBottom=jkqtp_roundTo<int>(internalPlotBorderBottom_notIncludingOutsidePlotSections-plotterStyle.plotBorderBottom);
    int ibRight=jkqtp_roundTo<int>(internalPlotBorderRight_notIncludingOutsidePlotSections-plotterStyle.plotBorderRight);


    for (int j=0; j<graphs.size(); j++) {
        JKQTPPlotElement* g=graphs[j];
        if (g->isVisible()) g->draw(painter);
    }

    if (useClipping) {
        painter.setClipping(false);
    }

    for (int j=0; j<graphs.size(); j++) {
        JKQTPPlotElement* g=graphs[j];
        if (g->isVisible()) {
            int leftSpace, rightSpace, topSpace, bottomSpace;
            g->getOutsideSize(painter, leftSpace, rightSpace, topSpace, bottomSpace);
            ibTop+=topSpace;
            ibLeft+=leftSpace;
            QRectF rleft(internalPlotBorderLeft+internalPlotKeyBorderLeft-ibLeft, internalPlotBorderTop, leftSpace, internalPlotHeight);
            QRectF rright(internalPlotBorderLeft+internalPlotWidth+ibRight-internalPlotKeyBorderRight, internalPlotBorderTop, rightSpace, internalPlotHeight);
            QRectF rtop(internalPlotBorderLeft, internalPlotBorderTop-ibTop+internalPlotKeyBorderTop, internalPlotWidth, topSpace);
            QRectF rbottom(internalPlotBorderLeft, internalPlotBorderTop+internalPlotHeight+ibBottom, internalPlotWidth, bottomSpace);
            g->drawOutside(painter, rleft.toRect(), rright.toRect(), rtop.toRect(), rbottom.toRect() );

            if (plotterStyle.debugShowRegionBoxes) {
                painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
                QPen p("green");
                p.setWidthF(plotterStyle.debugRegionLineWidth);
                QColor col=p.color(); col.setAlphaF(0.8); p.setColor(col);
                painter.setPen(p);
                painter.setBrush(QBrush(QColor(Qt::transparent)));
                if (rleft.width()>0 && rleft.height()>0) painter.drawRect(rleft);
                if (rright.width()>0 && rright.height()>0) painter.drawRect(rright);
                if (rtop.width()>0 && rtop.height()>0) painter.drawRect(rtop);
                if (rbottom.width()>0 && rbottom.height()>0) painter.drawRect(rbottom);

            }

            ibRight+=rightSpace;
            ibBottom+=bottomSpace;
        }
    }

    //qDebug()<<"  end JKQTBasePlotter::plotGraphs()";
}


void JKQTBasePlotter::drawKeyContents(JKQTPEnhancedPainter& painter, double x, double y, double /*width*/, double /*height*/){
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaaot(QString("JKQTBasePlotter::plotKeyContents(%1, %2, %3, %4)").arg(x).arg(y).arg(width).arg(height));
#endif
    painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});

    double key_text_width=0;
    double key_text_height=0;
    double dw, dh;
    int columns=1;
    int lines=1;
    getKeyExtent(painter, &dw, &dh, &key_text_width, &key_text_height, &columns, &lines);

#ifdef SHOW_JKQTPLOTTER_DEBUG
    qDebug()<<"key_item_height="<<key_item_height;
    qDebug()<<"plotKey(): dw="<<dw<<"  dh="<<dh<<"  key_text_width="<<key_text_width<<"   key_text_height="<<key_text_height<<"  columns="<<columns<<"   lines="<<lines<<"   plotterStyle.keyStyle.layout="<<plotterStyle.keyStyle.layout;
#endif
    QFont kf(plotterStyle.defaultFontName, 10);
    kf.setPointSizeF(plotterStyle.keyStyle.fontSize*fontSizeMultiplier);
    QFontMetricsF kfm(kf);

    if (plotterStyle.keyStyle.layout==JKQTPKeyLayoutOneColumn) {

        for (int i=0; i<graphs.size(); i++) {
            JKQTPPlotElement* g=graphs[i];
#ifdef JKQTBP_AUTOTIMER
            jkaaot.write(QString("one-col: graph %1: %2").arg(i).arg(g->getTitle()));
#endif
            if (!g->getTitle().isEmpty() && g->isVisible()) {
                QSizeF fs=getTextSizeSize(plotterStyle.defaultFontName,plotterStyle.keyStyle.fontSize*fontSizeMultiplier,g->getTitle(),painter);//  mt.getSize(painter);
                double itheight=qMax(plotterStyle.keyStyle.itemHeight*kfm.width('X'), fs.height());
                QRectF markerRect(x, y+1.5*lineWidthMultiplier, plotterStyle.keyStyle.sampleLineLength*kfm.width('X'), itheight-3.0*lineWidthMultiplier);
                g->drawKeyMarker(painter, markerRect);
                mathText.setFontColor(plotterStyle.keyStyle.textColor);
                mathText.setFontSize(plotterStyle.keyStyle.fontSize*fontSizeMultiplier);
                mathText.setFontRomanOrSpecial(plotterStyle.defaultFontName);

                mathText.parse(g->getTitle());
                QRectF txtRect(x+(plotterStyle.keyStyle.sampleLineLength+plotterStyle.keyStyle.xSeparation)*kfm.width('X'),y, key_text_width, itheight);
                mathText.draw(painter, Qt::AlignLeft|Qt::AlignVCenter, txtRect);
                //if (itheight<key_item_height*kfm.height()) itheight=key_item_height*kfm.height();
                //y=y+itheight+(plotterStyle.keyStyle.ySeparation)*kfm.height();
                y=y+key_text_height+(plotterStyle.keyStyle.ySeparation)*kfm.width('X');
                if (plotterStyle.debugShowRegionBoxes) {
                    painter.save(); auto __finalpaintinner=JKQTPFinally([&painter]() {painter.restore();});
                    QPen p("orange");
                    QColor col=p.color(); col.setAlphaF(0.8); p.setColor(col);
                    p.setWidthF(plotterStyle.debugRegionLineWidth/2.0);
                    p.setStyle(Qt::DashLine);
                    painter.setPen(p);
                    painter.setBrush(QBrush(QColor(Qt::transparent)));
                    painter.drawRect(txtRect);
                    painter.drawRect(markerRect);

                }

            }
        }
    } else if (plotterStyle.keyStyle.layout==JKQTPKeyLayoutOneRow) {

        for (int i=0; i<graphs.size(); i++) {
            JKQTPPlotElement* g=graphs[i];
#ifdef JKQTBP_AUTOTIMER
            jkaaot.write(QString("one-row: graph %1: %2").arg(i).arg(g->getTitle()));
#endif
            if (!g->getTitle().isEmpty() && g->isVisible()) {
                QSizeF fs=getTextSizeSize(plotterStyle.defaultFontName,plotterStyle.keyStyle.fontSize*fontSizeMultiplier,g->getTitle(),painter);//  mt.getSize(painter);
                double itheight=qMax(plotterStyle.keyStyle.itemHeight*kfm.width('X'), fs.height());
                QRectF markerRect(x, y+1.5*lineWidthMultiplier, plotterStyle.keyStyle.sampleLineLength*kfm.width('X'), itheight-3.0*lineWidthMultiplier);
                g->drawKeyMarker(painter, markerRect);
                mathText.setFontColor(plotterStyle.keyStyle.textColor);
                mathText.setFontSize(plotterStyle.keyStyle.fontSize*fontSizeMultiplier);
                mathText.setFontRomanOrSpecial(plotterStyle.defaultFontName);

                mathText.parse(g->getTitle());
                QRectF txtRect(x+(plotterStyle.keyStyle.sampleLineLength+plotterStyle.keyStyle.xSeparation)*kfm.width('X'),y, fs.width(), itheight);
                mathText.draw(painter, Qt::AlignLeft|Qt::AlignVCenter, txtRect);
                if (plotterStyle.debugShowRegionBoxes) {
                    painter.save(); auto __finalpaintinner=JKQTPFinally([&painter]() {painter.restore();});
                    QPen p("orange");
                    QColor col=p.color(); col.setAlphaF(0.8); p.setColor(col);
                    p.setWidthF(plotterStyle.debugRegionLineWidth/2.0);
                    p.setStyle(Qt::DashLine);
                    painter.setPen(p);
                    painter.setBrush(QBrush(QColor(Qt::transparent)));
                    painter.drawRect(txtRect);
                    painter.drawRect(markerRect);

                }
                //if (itheight<key_item_height*kfm.height()) itheight=key_item_height*kfm.height();
                //y=y+itheight+(plotterStyle.keyStyle.ySeparation)*kfm.height();
                x=x+fs.width()+(2.0*plotterStyle.keyStyle.xSeparation+plotterStyle.keyStyle.sampleLineLength)*kfm.width('X');
            }
        }
    } else if (plotterStyle.keyStyle.layout==JKQTPKeyLayoutMultiColumn) {
        //int columns=floor(static_cast<double>(plotWidth)/static_cast<double>(key_item_width*kfm.width('X')));
        bool colfirst=true;

        if (plotterStyle.keyStyle.position==JKQTPKeyInsideTopLeft || plotterStyle.keyStyle.position==JKQTPKeyInsideTopRight
            || plotterStyle.keyStyle.position==JKQTPKeyOutsideTopLeft || plotterStyle.keyStyle.position==JKQTPKeyOutsideTopRight) {
            colfirst=false;
        }

        int l=1;
        int c=1;
        double xx=x;
        double yy=y;
        for (int i=0; i<graphs.size(); i++) {
            JKQTPPlotElement* g=graphs[i];
#ifdef JKQTBP_AUTOTIMER
            jkaaot.write(QString("multi-col: graph %1: %2").arg(i).arg(g->getTitle()));
#endif
            if (!g->getTitle().isEmpty() && g->isVisible()) {
                //QSizeF fs=getTextSizeSize(plotterStyle.defaultFontName,plotterStyle.keyStyle.fontSize*fontSizeMultiplier,g->getTitle(),painter);//  mt.getSize(painter);
                double itheight=qMax(plotterStyle.keyStyle.itemHeight*kfm.width('X'), key_text_height);
                QRectF markerRect(xx, yy+1.5*lineWidthMultiplier, plotterStyle.keyStyle.sampleLineLength*kfm.width('X'), itheight-3.0*lineWidthMultiplier);
                g->drawKeyMarker(painter, markerRect);
                mathText.setFontColor(plotterStyle.keyStyle.textColor);
                mathText.setFontSize(plotterStyle.keyStyle.fontSize*fontSizeMultiplier);
                mathText.setFontRomanOrSpecial(plotterStyle.defaultFontName);
                mathText.parse(g->getTitle());
                //QSizeF fs=mt.getSize(painter);
                QRectF txtRect(xx+(plotterStyle.keyStyle.sampleLineLength+plotterStyle.keyStyle.xSeparation)*kfm.width('X'),yy, key_text_width, key_text_height);
                mathText.draw(painter, Qt::AlignLeft|Qt::AlignVCenter, txtRect);

                if (plotterStyle.debugShowRegionBoxes) {
                    painter.save(); auto __finalpaintinner=JKQTPFinally([&painter]() {painter.restore();});
                    QPen p("orange");
                    QColor col=p.color(); col.setAlphaF(0.8); p.setColor(col);
                    p.setWidthF(plotterStyle.debugRegionLineWidth/2.0);
                    p.setStyle(Qt::DashLine);
                    painter.setPen(p);
                    painter.setBrush(QBrush(QColor(Qt::transparent)));
                    painter.drawRect(txtRect);
                    painter.drawRect(markerRect);

                }

                if (colfirst) {
                    yy=yy+key_text_height+(plotterStyle.keyStyle.ySeparation)*kfm.width('X');
                    l++;
                    if (l>lines) {
                        l=1;
                        c++;
                        xx=xx+key_text_width+(plotterStyle.keyStyle.sampleLineLength+2.0*plotterStyle.keyStyle.xSeparation)*kfm.width('X');
                        /*if (plotterStyle.keyStyle.autosize) xx=xx+key_text_width+(key_line_length+3.0*plotterStyle.keyStyle.xSeparation)*kfm.width('X');
                        else xx=xx+(key_item_width+2.0*plotterStyle.keyStyle.xSeparation)*kfm.width('X');*/
                        yy=y;
                    }
                } else {
                    /*if (plotterStyle.keyStyle.autosize) xx=xx+key_text_width+(key_line_length+3.0*plotterStyle.keyStyle.xSeparation)*kfm.width('X');
                    else xx=xx+(key_item_width+2.0*plotterStyle.keyStyle.xSeparation)*kfm.width('X');*/
                    xx=xx+key_text_width+(plotterStyle.keyStyle.sampleLineLength+2.0*plotterStyle.keyStyle.xSeparation)*kfm.width('X');
                    c++;
                    if (c>columns) {
                        c=1;
                        l++;
                        //yy=yy+(key_item_height+plotterStyle.keyStyle.ySeparation)*kfm.height();
                        yy=yy+itheight+(plotterStyle.keyStyle.ySeparation)*kfm.width('X');
                        xx=x;
                    }
                }
            }
        }
    }

    /*painter.setPen(pold);
    painter.setBrush(bold);*/


}

void JKQTBasePlotter::getKeyExtent(JKQTPEnhancedPainter& painter, double* width, double* height, double* text_width, double* text_height, int* columns_count, int *lines_count) {
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaaot("JKQTBasePlotter::getKeyExtent");
#endif
    QFont f=painter.font();
    f.setFamily(plotterStyle.defaultFontName);
    f.setPointSizeF(plotterStyle.keyStyle.fontSize*fontSizeMultiplier);
    QFontMetricsF kfm(f);
    if (text_height!=nullptr) *text_height=plotterStyle.keyStyle.itemHeight*kfm.width('X');
    if (plotterStyle.keyStyle.layout==JKQTPKeyLayoutOneColumn) {
        int keyHeight=graphs.size();
        double w=0;
        double h=0;
        painter.setFont(f);
        if (text_height!=nullptr) *text_height=0;


        for (int i=0; i<graphs.size(); i++) {
            if (graphs[i]->getTitle().isEmpty() || !graphs[i]->isVisible()) {
                keyHeight--;
            } else {
                //mt.parse(graphs[i]->getTitle());
                //QSizeF fs=mt.getSize(painter);
                QSizeF fs=getTextSizeSize(plotterStyle.defaultFontName, plotterStyle.keyStyle.fontSize*fontSizeMultiplier, graphs[i]->getTitle(), painter);
                if (fs.width()>w) w=fs.width();
                if (text_height && fs.height()>*text_height) *text_height=fs.height();
                h=h+qMax(plotterStyle.keyStyle.itemHeight*kfm.width('X'), fs.height())+plotterStyle.keyStyle.ySeparation*kfm.width('X');
            }
        }
        if (plotterStyle.keyStyle.autosize) {
            if (width) *width=w+(plotterStyle.keyStyle.sampleLineLength+2.0*plotterStyle.keyStyle.xSeparation)*kfm.width('X');
            if (text_width!=nullptr) *text_width=w+2.0*kfm.width('X');
        } else {
            if (width) *width=plotterStyle.keyStyle.itemWidth*kfm.width('X');
            if (text_width!=nullptr) *text_width=(plotterStyle.keyStyle.itemWidth-(plotterStyle.keyStyle.sampleLineLength+plotterStyle.keyStyle.xSeparation))*kfm.width('X');
        }
        if (h>plotterStyle.keyStyle.ySeparation*kfm.width('X')) h=h-plotterStyle.keyStyle.ySeparation*kfm.width('X');
        if (height) *height=h;//keyHeight*key_item_height*kfm.width('X');
        if (columns_count) *columns_count=1;
        if (lines_count) *lines_count=keyHeight;
    } else if (plotterStyle.keyStyle.layout==JKQTPKeyLayoutOneRow) {
        int keyWidth=graphs.size();
        double w=0;
        double h=0;
        painter.setFont(f);
        if (text_width!=nullptr) *text_width=0;


        for (int i=0; i<graphs.size(); i++) {
            if (graphs[i]->getTitle().isEmpty() || !graphs[i]->isVisible()) {
                keyWidth--;
            } else {
                //mt.parse(graphs[i]->getTitle());
                //QSizeF fs=mt.getSize(painter);
                QSizeF fs=getTextSizeSize(plotterStyle.defaultFontName, plotterStyle.keyStyle.fontSize*fontSizeMultiplier, graphs[i]->getTitle(), painter);
                if (fs.height()>h) h=fs.height();
                if (text_width && fs.width()>*text_width) *text_width=fs.width();
                w=w+fs.width()+(plotterStyle.keyStyle.sampleLineLength+2.0*plotterStyle.keyStyle.xSeparation)*kfm.width('X');
            }
        }
        if (h<plotterStyle.keyStyle.itemHeight*kfm.width('X')) h=plotterStyle.keyStyle.itemHeight*kfm.width('X');
        if (plotterStyle.keyStyle.autosize) {
            if (height) *height=h;
            if (text_height!=nullptr) *text_height=h;
        } else {
            if (height) *height=h;
            if (text_height!=nullptr) *text_height=(plotterStyle.keyStyle.itemHeight-(plotterStyle.keyStyle.ySeparation))*kfm.width('X');
        }
        if (w>(plotterStyle.keyStyle.xSeparation)*kfm.width('X')) w=w-(plotterStyle.keyStyle.xSeparation)*kfm.width('X');
        if (width) *width=w;//keyHeight*key_item_height*kfm.width('X');
        if (columns_count) *columns_count=keyWidth;
        if (lines_count) *lines_count=1;
    } else if (plotterStyle.keyStyle.layout==JKQTPKeyLayoutMultiColumn) {

        // copied code in plotKeyContents()!!!
        double keyHeight=graphs.size();
        double w=0;
        double txtH=0;
        QFont floc=painter.font();
        floc.setFamily(plotterStyle.defaultFontName);
        floc.setPointSizeF(plotterStyle.keyStyle.fontSize*fontSizeMultiplier);
        painter.setFont(floc);


        for (int i=0; i<graphs.size(); i++) {
            if (graphs[i]->getTitle().isEmpty() || !graphs[i]->isVisible()) {
                keyHeight--;
            } else {
                //mt.parse(graphs[i]->getTitle());
                //QSizeF fs=mt.getSize(painter);
                QSizeF fs=getTextSizeSize(plotterStyle.defaultFontName, plotterStyle.keyStyle.fontSize*fontSizeMultiplier, graphs[i]->getTitle(), painter);
                if (fs.width()>w) w=fs.width();
                if ( fs.height()>txtH) txtH=fs.height();
            }
        }

        if (text_height) {
            if (plotterStyle.keyStyle.autosize) *text_height=txtH;
            else *text_height=plotterStyle.keyStyle.itemHeight*kfm.width('X');
        }


        double columns=floor(double(internalPlotWidth)/(w+(2.0*plotterStyle.keyStyle.xSeparation+plotterStyle.keyStyle.sampleLineLength)*kfm.width('X')));
        if (!plotterStyle.keyStyle.autosize) columns=floor(double(internalPlotWidth)/((plotterStyle.keyStyle.itemWidth+2.0*plotterStyle.keyStyle.xSeparation+plotterStyle.keyStyle.sampleLineLength)*kfm.width('X')));
        columns=qMin(columns, keyHeight);
        int lines=static_cast<int>(ceil(static_cast<double>(keyHeight)/static_cast<double>(columns)));
        lines=jkqtp_roundTo<int>(qMin(static_cast<double>(lines), keyHeight));

        if (plotterStyle.keyStyle.position==JKQTPKeyInsideTopLeft || plotterStyle.keyStyle.position==JKQTPKeyInsideTopRight
            || plotterStyle.keyStyle.position==JKQTPKeyOutsideTopLeft || plotterStyle.keyStyle.position==JKQTPKeyOutsideTopRight) {
            if (plotterStyle.keyStyle.autosize) {
                lines=static_cast<int>(floor(static_cast<double>(internalPlotHeight)/static_cast<double>(txtH+(plotterStyle.keyStyle.ySeparation)*kfm.width('X'))));
            } else {
                lines=static_cast<int>(floor(static_cast<double>(internalPlotHeight)/static_cast<double>((plotterStyle.keyStyle.itemHeight+plotterStyle.keyStyle.ySeparation)*kfm.width('X'))));
            }
            columns=static_cast<int>(ceil(static_cast<double>(keyHeight)/static_cast<double>(lines)));
            lines=jkqtp_roundTo<int>(qMin(static_cast<double>(lines), keyHeight));

        }

        if (columns_count) *columns_count=jkqtp_roundTo<int>(columns);
        if (lines_count) *lines_count=lines;

        if (plotterStyle.keyStyle.autosize) {
            if (width) *width=(w+(plotterStyle.keyStyle.sampleLineLength+3.0*plotterStyle.keyStyle.xSeparation)*kfm.width('X'))*columns;
            if (height) *height=lines*(txtH+plotterStyle.keyStyle.ySeparation*kfm.width('X'));
            if (lines>0) *height=*height-plotterStyle.keyStyle.ySeparation*kfm.width('X');
            if (text_width!=nullptr) *text_width=w;
        } else {
            if (width) *width=(plotterStyle.keyStyle.itemWidth+2.0*plotterStyle.keyStyle.xSeparation)*kfm.width('X')*columns;
            if (height) *height=lines*(plotterStyle.keyStyle.itemHeight+plotterStyle.keyStyle.ySeparation)*kfm.width('X');
            if (lines>0) *height=*height-plotterStyle.keyStyle.ySeparation*kfm.width('X');
            if (text_width!=nullptr) *text_width=(plotterStyle.keyStyle.itemWidth-(plotterStyle.keyStyle.sampleLineLength+plotterStyle.keyStyle.xSeparation))*kfm.width('X');
        }
#ifdef SHOW_JKQTPLOTTER_DEBUG
        qDebug()<<"getKeyExtent(): mult-column: columns="<<columns<<"  lines="<<lines;
#endif

    }
}

void JKQTBasePlotter::loadUserSettings()
{
    if (!userSettigsFilename.isEmpty()) {
        QSettings set(userSettigsFilename, QSettings::IniFormat);
        set.sync();
        loadUserSettings(set, userSettigsPrefix);
    }
}

void JKQTBasePlotter::saveUserSettings() const
{
    if (!userSettigsFilename.isEmpty()) {
        QSettings set(userSettigsFilename, QSettings::IniFormat);
        saveUserSettings(set, userSettigsPrefix);
        set.sync();
    }
}



void JKQTBasePlotter::getGraphsXMinMax(double& minx, double& maxx, double& smallestGreaterZero) {
    bool start=true;
    minx=0;
    maxx=0;
    smallestGreaterZero=0;
    for (int i=0; i<graphs.size(); i++) {
        if (graphs[i]->isVisible()) {

            double gminx=0;
            double gmaxx=0;
            double gsmallestGreaterZero=0;
            if (graphs[i]->getXMinMax(gminx, gmaxx, gsmallestGreaterZero)) {
               // std::cout<<"      -> "<<i<<": "<<graphs[i]->getTitle().toStdString()<<": "<<gminx<<"..."<<gmaxx<<std::endl;
                if ((gminx<minx) || start) minx=gminx;
                if ((gmaxx>maxx) || start) maxx=gmaxx;

                double xvsgz;
                xvsgz=gsmallestGreaterZero; if ((xvsgz>10.0*DBL_MIN)&&((smallestGreaterZero<10.0*DBL_MIN) || (xvsgz<smallestGreaterZero))) smallestGreaterZero=xvsgz;
                xvsgz=gmaxx; if ((xvsgz>10.0*DBL_MIN)&&((smallestGreaterZero<10.0*DBL_MIN) || (xvsgz<smallestGreaterZero))) smallestGreaterZero=xvsgz;
                xvsgz=gminx; if ((xvsgz>10.0*DBL_MIN)&&((smallestGreaterZero<10.0*DBL_MIN) || (xvsgz<smallestGreaterZero))) smallestGreaterZero=xvsgz;

                //std::cout<<"         "<<i<<": gminx="<<gminx<<"  gmaxx="<<gmaxx<<"   minx="<<minx<<" maxx="<<maxx<<std::endl;

                start=false;
            } else {
                //std::cout<<"      -> "<<i<<": "<<graphs[i]->getTitle().toStdString()<<": FALSE"<<std::endl;
            }
        } else {
            //std::cout<<"      -> "<<i<<": "<<graphs[i]->getTitle().toStdString()<<": INVISIBLE"<<std::endl;
        }
    }
}

void JKQTBasePlotter::getGraphsYMinMax(double& miny, double& maxy, double& smallestGreaterZero) {
    bool start=true;
    miny=0;
    maxy=0;
    smallestGreaterZero=0;
    for (int i=0; i<graphs.size(); i++) {
        if (graphs[i]->isVisible()) {
            double gminy=0;
            double gmaxy=0;
            double gsmallestGreaterZero=0;
            if (graphs[i]->getYMinMax(gminy, gmaxy, gsmallestGreaterZero)) {
                if ((gminy<miny) || start) miny=gminy;
                if ((gmaxy>maxy) || start) maxy=gmaxy;

                double xvsgz;
                xvsgz=gsmallestGreaterZero; if ((xvsgz>10.0*DBL_MIN)&&((smallestGreaterZero<10.0*DBL_MIN) || (xvsgz<smallestGreaterZero))) smallestGreaterZero=xvsgz;
                xvsgz=gmaxy; if ((xvsgz>10.0*DBL_MIN)&&((smallestGreaterZero<10.0*DBL_MIN) || (xvsgz<smallestGreaterZero))) smallestGreaterZero=xvsgz;
                xvsgz=gminy; if ((xvsgz>10.0*DBL_MIN)&&((smallestGreaterZero<10.0*DBL_MIN) || (xvsgz<smallestGreaterZero))) smallestGreaterZero=xvsgz;

                start=false;
            }
        }
    }
}


void JKQTBasePlotter::zoomToFit(bool zoomX, bool zoomY, bool includeX0, bool includeY0, double scaleX, double scaleY) {
   // std::cout<<"JKQTBasePlotter::zoomToFit():\n";
    if (graphs.size()<=0) return;
    if (zoomX) {
        double xxmin=0;
        double xxmax=0;
        double xsmallestGreaterZero=0;
        getGraphsXMinMax(xxmin, xxmax, xsmallestGreaterZero);
        //std::cout<<"   xxmin="<<xxmin<<"   xxmax="<<xxmax<<std::endl;
        if (JKQTPIsOKFloat(xxmin) && JKQTPIsOKFloat(xxmax)) {
            bool doScale=true;
            if (fabs(xxmin-xxmax)<1e-305) {
                xxmin=xAxis->getMin();
                xxmax=xAxis->getMax();
                doScale=false;
            }
            if (xAxis->isLogAxis()) {
                if ((xxmin<=1e-305)&&(xxmax<=1e-305)) {xxmin=0.1; xxmax=1.0; }
                else if ((xxmin<=1e-305)&&(xxmax>0)) {
                    if (xsmallestGreaterZero>10.0*DBL_MIN) xxmin=xsmallestGreaterZero;
                    else xxmin=xxmax/xAxis->getLogAxisBase();
                }
                if (doScale) {
                    double d=scaleX*(log(xxmax)-log(xxmin));  // new width
                    double c=(log(xxmax)+log(xxmin))/2.0;     // center of interval
                    xxmin=exp(c-d/2.0);
                    xxmax=exp(c+d/2.0);
                }
            } else if (doScale) {
                double d=scaleX*(xxmax-xxmin);  // new width
                double c=(xxmax+xxmin)/2.0;     // center of interval
                xxmin=c-d/2.0;
                xxmax=c+d/2.0;
            }
            if (includeX0 && !xAxis->isLogAxis()) {
                if (xxmin>0) xxmin=0;
                else if (xxmax<0) xxmax=0;
            }
            //std::cout<<"   => xxmin="<<xxmin<<"   xxmax="<<xxmax<<std::endl;
            if (JKQTPIsOKFloat(xxmin) && JKQTPIsOKFloat(xxmax)) {
                setX(xxmin, xxmax);
            } else if (!JKQTPIsOKFloat(xxmin) && JKQTPIsOKFloat(xxmax)) {
                setX(getXMin(), xxmax);
            } else if (JKQTPIsOKFloat(xxmin) && !JKQTPIsOKFloat(xxmax)) {
                setX(xxmin, getXMax());
            }
        }
    }

    if (zoomY) {
        double yymin=0;
        double yymax=0;
        double ysmallestGreaterZero=0;
        getGraphsYMinMax(yymin, yymax, ysmallestGreaterZero);
        //std::cout<<"   yymin="<<yymin<<"   yymax="<<yymax<<std::endl;
        bool doScale=true;
        if (fabs(yymin-yymax)<1e-305) {
            yymin=yAxis->getMin();
            yymax=yAxis->getMax();
            doScale=false;
        }
        if (yAxis->getLogAxis()) {
            if ((yymin<=1e-305)&&(yymax<=1e-305)) {yymin=0.1; yymax=1.0; }
            else if ((yymin<=1e-305)&&(yymax>0)) {
                if (ysmallestGreaterZero>10.0*DBL_MIN) yymin=ysmallestGreaterZero;
                else yymin=yymax/yAxis->getLogAxisBase();
            }
            if (doScale) {
                double d=scaleY*(log(yymax)-log(yymin));  // new width
                double c=(log(yymax)+log(yymin))/2.0;     // center of interval
                yymin=exp(c-d/2.0);
                yymax=exp(c+d/2.0);
            }
        } else if (doScale) {
            double d=scaleY*(yymax-yymin);  // new width
            double c=(yymax+yymin)/2.0;     // center of interval
            yymin=c-d/2.0;
            yymax=c+d/2.0;
        }
        if (includeY0 && !yAxis->getLogAxis()) {
            if (yymin>0) yymin=0;
            else if (yymax<0) yymax=0;
        }
        //std::cout<<"   => yymin="<<yymin<<"   yymax="<<yymax<<std::endl;

        if (JKQTPIsOKFloat(yymin) && JKQTPIsOKFloat(yymax)) {
            setY(yymin, yymax);
        } else if (!JKQTPIsOKFloat(yymin) && JKQTPIsOKFloat(yymax)) {
            setY(getYMin(), yymax);
        } else if (JKQTPIsOKFloat(yymin) && !JKQTPIsOKFloat(yymax)) {
            setY(yymin, getYMax());
        }

    }
    //std::cout<<"end of zoomToFit\n";
    //setXY(xxmin, xxmax, yymin, yymax);
    if (emitSignals) emit zoomChangedLocally(xAxis->getMin(), xAxis->getMax(), yAxis->getMin(), yAxis->getMax(), this);
}





JKQTPOverlayElement *JKQTBasePlotter::getOverlayElement(size_t i) {
    return overlays[static_cast<int>(i)];
}

size_t JKQTBasePlotter::getOverlayElementCount() {
    return static_cast<size_t>(overlays.size());
}

void JKQTBasePlotter::deleteOverlayElement(size_t i, bool deletegraph) {
    if (long(i)<0 || long(i)>=overlays.size()) return;
    JKQTPOverlayElement* g=overlays[static_cast<int>(i)];
    overlays.removeAt(static_cast<int>(i));
    if (deletegraph && g) delete g;
    if (emitPlotSignals) emit overlaysUpdated();
}

void JKQTBasePlotter::deleteOverlayElement(JKQTPOverlayElement *gr, bool deletegraph) {
    int i=overlays.indexOf(gr);
    while (i>=0) {
        overlays.removeAt(i);
        i=overlays.indexOf(gr);
    }

    if (deletegraph && gr) delete gr;
    if (emitPlotSignals) emit overlaysUpdated();
}

void JKQTBasePlotter::clearOverlayElement(bool deleteGraphs) {
    for (int i=0; i<overlays.size(); i++) {
        JKQTPOverlayElement* g=overlays[i];
        if (g && deleteGraphs) delete g;
    }
    overlays.clear();
    if (emitPlotSignals) emit overlaysUpdated();
}

size_t JKQTBasePlotter::addOverlayElement(JKQTPOverlayElement *gr) {
    gr->setParent(this);
    for (size_t i=0; i<static_cast<size_t>(overlays.size()); i++) {
        if (overlays[static_cast<int>(i)]==gr) return i;
    }
    overlays.push_back(gr);
    if (emitPlotSignals) emit overlaysUpdated();
    return static_cast<size_t>(overlays.size()-1);
}

bool JKQTBasePlotter::containsOverlayElement(JKQTPOverlayElement *gr) const {
    for (int i=0; i<overlays.size(); i++) {
        if (overlays[i]==gr) {
            return true;
        }
    }
    return false;
}

size_t JKQTBasePlotter::moveOverlayElementTop(JKQTPOverlayElement *gr) {
    gr->setParent(this);
    for (int i=0; i<overlays.size(); i++) {
        if (overlays[i]==gr) {
            if (i<overlays.size()-1) {
                overlays.removeAt(i);
                overlays.push_back(gr);
            }
            return static_cast<size_t>(overlays.size()-1);
        }
    }
    overlays.push_back(gr);
    if (emitPlotSignals) emit overlaysUpdated();
    return static_cast<size_t>(overlays.size()-1);
}

void JKQTBasePlotter::addOverlayElements(const QList<JKQTPOverlayElement *> &gr) {
    for (int i=0; i< gr.size(); i++) {
        addOverlayElement(gr[i]);
    }
}





JKQTPPlotElement* JKQTBasePlotter::getGraph(size_t i) {
    return graphs[static_cast<int>(i)];
};

size_t JKQTBasePlotter::getGraphCount() {
    return static_cast<size_t>(graphs.size());
};

void JKQTBasePlotter::deleteGraph(size_t i, bool deletegraph) {
    if (long(i)<0 || long(i)>=graphs.size()) return;
    JKQTPPlotElement* g=graphs[static_cast<int>(i)];
    graphs.removeAt(static_cast<int>(i));
    if (deletegraph && g) delete g;
    if (emitPlotSignals) emit plotUpdated();
};

void JKQTBasePlotter::deleteGraph(JKQTPPlotElement* gr, bool deletegraph) {
    int i=graphs.indexOf(gr);
    while (i>=0) {
        graphs.removeAt(i);
        i=graphs.indexOf(gr);
    }

    if (deletegraph && gr) delete gr;
    if (emitPlotSignals) emit plotUpdated();
}

void JKQTBasePlotter::clearGraphs(bool deleteGraphs) {
    for (int i=0; i<graphs.size(); i++) {
        JKQTPPlotElement* g=graphs[i];
        if (g && deleteGraphs) delete g;
    }
    graphs.clear();
    usedStyles.clear();
    if (emitPlotSignals) emit plotUpdated();
}

void JKQTBasePlotter::setAllGraphsInvisible()
{
    for (int i=0; i<graphs.size(); i++) {
        JKQTPPlotElement* g=graphs[i];
        g->setVisible(false);
    }
    if (emitPlotSignals) emit plotUpdated();
}

void JKQTBasePlotter::setAllGraphsVisible()
{
    for (int i=0; i<graphs.size(); i++) {
        JKQTPPlotElement* g=graphs[i];
        g->setVisible(true);
    }
    if (emitPlotSignals) emit plotUpdated();
}

void JKQTBasePlotter::setGraphVisible(int i, bool visible)
{
    JKQTPPlotElement* g=graphs.value(i, nullptr);
    if (g) g->setVisible(visible);
    if (emitPlotSignals) emit plotUpdated();
}

void JKQTBasePlotter::setOnlyGraphVisible(int gr)
{
    for (int i=0; i<graphs.size(); i++) {
        JKQTPPlotElement* g=graphs[i];
        g->setVisible(false);
    }
    JKQTPPlotElement* g=graphs.value(gr, nullptr);
    if (g) g->setVisible(true);
    if (emitPlotSignals) emit plotUpdated();
}

void JKQTBasePlotter::setOnlyNthGraphsVisible(int start, int n)
{
    for (int i=0; i<graphs.size(); i++) {
        JKQTPPlotElement* g=graphs[i];
        g->setVisible(false);
    }
    for (int i=start; i<graphs.size(); i+=n) {
        JKQTPPlotElement* g=graphs.value(i, nullptr);
        if (g) g->setVisible(true);
    }
    if (emitPlotSignals) emit plotUpdated();
}

size_t JKQTBasePlotter::addGraph(JKQTPPlotElement* gr) {
    gr->setParent(this);
    for (int i=0; i<graphs.size(); i++) {
        if (graphs[i]==gr) return static_cast<size_t>(i);
    }
    graphs.push_back(gr);
    if (emitPlotSignals) emit plotUpdated();
    return static_cast<size_t>(graphs.size()-1);
};

size_t JKQTBasePlotter::moveGraphTop(JKQTPPlotElement* gr) {
    gr->setParent(this);
    for (int i=0; i<graphs.size(); i++) {
        if (graphs[i]==gr) {
            if (i<graphs.size()-1) {
                graphs.removeAt(i);
                graphs.push_back(gr);
            }
            return static_cast<size_t>(graphs.size()-1);
        }
    }
    graphs.push_back(gr);
    if (emitPlotSignals) emit plotUpdated();
    return static_cast<size_t>(graphs.size()-1);
}

size_t JKQTBasePlotter::moveGraphBottom(JKQTPPlotElement *gr)
{
    gr->setParent(this);
    for (int i=0; i<graphs.size(); i++) {
        if (graphs[i]==gr) {
            if (i<graphs.size()-1) {
                graphs.removeAt(i);
                graphs.push_front(gr);
            }
            return 0;
        }
    }
    graphs.push_front(gr);
    if (emitPlotSignals) emit plotUpdated();
    return static_cast<size_t>(graphs.size()-1);
};

bool JKQTBasePlotter::containsGraph(JKQTPPlotElement* gr) const {
    for (int i=0; i<graphs.size(); i++) {
        if (graphs[i]==gr) {
            return true;
        }
    }
    return false;
};

void JKQTBasePlotter::setUserSettigsFilename(const QString &filename, const QString &prefix)
{
    userSettigsFilename=filename;
    userSettigsPrefix=prefix;
}

void JKQTBasePlotter::setUserSettigsFilename(const QString &filename)
{
    userSettigsFilename=filename;
}

void JKQTBasePlotter::setUserSettigsPrefix(const QString &prefix)
{
    userSettigsPrefix=prefix;
}

QString JKQTBasePlotter::getUserSettigsFilename() const
{
    return userSettigsFilename;
}

QString JKQTBasePlotter::getUserSettigsPrefix() const
{
    return userSettigsPrefix;
}

QSet<int> JKQTBasePlotter::getDataColumnsByUser() {
    loadUserSettings();
    QSet<int> set;

    QStringList cols=getDatastore()->getColumnNames();

    QDialog* dlg=new QDialog(nullptr, Qt::WindowMinMaxButtonsHint);
    dlg->setSizeGripEnabled(true);
    //printZoomFactor=0.95;
    //printMagnification=1.5;
    QGridLayout* layout=new QGridLayout();
    dlg->setLayout(layout);
    dlg->setWindowTitle(tr("Select columns to export ..."));
    dlg->setWindowIcon(QIcon());

    QLabel* lab=new QLabel(tr("<center><b>Please check the columns that should be exported in the list!</b><br>"
                                         "You may also save a selection to reuse it in future, by clicking \"Save\". "
                                         "A stored selection can be used by selecting its name in the dropdown field "
                                         "above the list widget.</center>"), dlg);
    lab->setWordWrap(true);
    layout->addWidget(lab,0,0,1,2);

    dataColumnsCombobox=new QComboBox(dlg);
    dataColumnsCombobox->addItems(getDataColumnsByUserSaved.keys());
    connect(dataColumnsCombobox, SIGNAL(currentIndexChanged(QString)), this, SLOT(getDataColumnsByUserComboBoxSelected(QString)));
    layout->addWidget(dataColumnsCombobox, 1,0);
    QPushButton* btn=new QPushButton(tr("&save"), dlg);
    connect(btn, SIGNAL(clicked()), this, SLOT(getDataColumnsByUserSave()));
    layout->addWidget(btn, 1,1);

    dataColumnsListWidget=new QListWidget(dlg);
    for (int i=0; i<cols.size(); i++) {
        QListWidgetItem* item=new QListWidgetItem(cols[i], dataColumnsListWidget);
        item->setCheckState(Qt::Checked);
        item->setFlags(Qt::ItemIsSelectable|Qt::ItemIsUserCheckable|Qt::ItemIsEnabled);
        dataColumnsListWidget->addItem(item);
    }
    connect(dataColumnsListWidget, SIGNAL(itemChanged(QListWidgetItem*)), this, SLOT(getDataColumnsByUserItemChanged(QListWidgetItem*)));
    layout->addWidget(dataColumnsListWidget, 2,0,5,1);
    btn=new QPushButton(tr("select &all"), dlg);
    connect(btn, SIGNAL(clicked()), this, SLOT(getDataColumnsByUserCheckAll()));
    layout->addWidget(btn, 2,1);
    btn=new QPushButton(tr("select &none"), dlg);
    connect(btn, SIGNAL(clicked()), this, SLOT(getDataColumnsByUserCheckNone()));
    layout->addWidget(btn, 3,1);

    QDialogButtonBox* buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
    connect(buttonBox, SIGNAL(accepted()), dlg, SLOT(accept()));
    connect(buttonBox, SIGNAL(rejected()), dlg, SLOT(reject()));
    layout->addWidget(buttonBox, layout->rowCount(),0, 1, layout->columnCount());
    layout->setRowStretch(layout->rowCount()-2,1);
    layout->setColumnStretch(0,1);
    dlg->resize(350,500);
    dataColumnsCombobox->setCurrentIndex(-1);

    if (dlg->exec()==QDialog::Accepted) {
        for (int i=0; i<dataColumnsListWidget->count(); i++) {
            if (dataColumnsListWidget->item(i)->checkState()==Qt::Checked) {
                set.insert(i);
            }
        }

    }
    delete dlg;
    dataColumnsListWidget=nullptr;

    saveUserSettings();
    return set;
}


void JKQTBasePlotter::getDataColumnsByUserCheckAll() {
    if (!dataColumnsListWidget) return;
    for (int i=0; i<dataColumnsListWidget->count(); i++) {
        dataColumnsListWidget->item(i)->setCheckState(Qt::Checked);
    }
}

void JKQTBasePlotter::getDataColumnsByUserCheckNone() {
    if (!dataColumnsListWidget) return;
    for (int i=0; i<dataColumnsListWidget->count(); i++) {
        dataColumnsListWidget->item(i)->setCheckState(Qt::Unchecked);
    }
}

void JKQTBasePlotter::getDataColumnsByUserSave() {
    if (!dataColumnsListWidget) return;
    QString name=tr("my selection name");
    QStringList items=getDataColumnsByUserSaved.keys();
    items<<name;
    bool ok=false;
    name=QInputDialog::getItem(nullptr, tr("save columns selection"), tr("name for new selection:"), items, items.size()-1, true, &ok);
    if (ok) {
        QStringList data;
        for (int i=0; i<dataColumnsListWidget->count(); i++) {
            if (dataColumnsListWidget->item(i)->checkState()==Qt::Checked) data.append(dataColumnsListWidget->item(i)->text());
        }
        data.sort();
        getDataColumnsByUserSaved[name]=data;
        disconnect(dataColumnsCombobox, SIGNAL(currentIndexChanged(QString)), this, SLOT(getDataColumnsByUserComboBoxSelected(QString)));
        dataColumnsCombobox->clear();
        dataColumnsCombobox->addItems(getDataColumnsByUserSaved.keys());
        dataColumnsCombobox->setCurrentIndex(dataColumnsCombobox->findText(name));
        connect(dataColumnsCombobox, SIGNAL(currentIndexChanged(QString)), this, SLOT(getDataColumnsByUserComboBoxSelected(QString)));
    }
}

void JKQTBasePlotter::getDataColumnsByUserComboBoxSelected(const QString &name) {
    if (!dataColumnsListWidget) return;
    QStringList newItems=getDataColumnsByUserSaved.value(name, QStringList());
    if (getDataColumnsByUserSaved.contains(name)) {
        for (int i=0; i<dataColumnsListWidget->count(); i++) {
            if (newItems.contains(dataColumnsListWidget->item(i)->text()) && (!dataColumnsListWidget->item(i)->text().isEmpty())) {
                dataColumnsListWidget->item(i)->setCheckState(Qt::Checked);
            } else {
                dataColumnsListWidget->item(i)->setCheckState(Qt::Unchecked);
            }
        }
    }
}

void JKQTBasePlotter::getDataColumnsByUserItemChanged(QListWidgetItem * /*widgetitem*/) {
    if (!dataColumnsListWidget) return;
    QStringList data;
    for (int i=0; i<dataColumnsListWidget->count(); i++) {
        if (dataColumnsListWidget->item(i)->checkState()==Qt::Checked) data.append(dataColumnsListWidget->item(i)->text());
    }
    data.sort();

    QMapIterator<QString, QStringList> it(getDataColumnsByUserSaved);
    QString item="";
    while (it.hasNext()) {
        it.next();
        QStringList ld=it.value();
        ld.sort();
        if (data==ld) {
            item=it.key();
        }
    }

    disconnect(dataColumnsCombobox, SIGNAL(currentIndexChanged(QString)), this, SLOT(getDataColumnsByUserComboBoxSelected(QString)));
    dataColumnsCombobox->setCurrentIndex(dataColumnsCombobox->findText(item));
    connect(dataColumnsCombobox, SIGNAL(currentIndexChanged(QString)), this, SLOT(getDataColumnsByUserComboBoxSelected(QString)));
}

void JKQTBasePlotter::showPlotData() {
    QDialog* dlg=new QDialog(nullptr,Qt::Dialog|Qt::WindowCloseButtonHint|Qt::WindowMinMaxButtonsHint);
    dlg->setWindowTitle(tr("Plot data table"));
    dlg->setSizeGripEnabled(true);

    QVBoxLayout* layout=new QVBoxLayout();
    dlg->setLayout(layout);
    QToolBar* tb=new QToolBar("toolbar", dlg);
    QAction* actClose=new QAction(QIcon(":/JKQTPlotter/jkqtp_exit.png"), tr("&Close Window"), dlg);
    connect(actClose, SIGNAL(triggered()), dlg, SLOT(accept()));
    tb->addAction(actClose);
    tb->addSeparator();
    tb->addAction(actSaveData);
    tb->addAction(actCopyData);
    tb->addAction(actCopyMatlab);
    layout->addWidget(tb);

    JKQTPEnhancedTableView* tv=new JKQTPEnhancedTableView(dlg);
    layout->addWidget(tv);
    tb->addAction(tv->getActionPrint());

    JKQTPDatastoreModel* model=new JKQTPDatastoreModel(getDatastore(), this);
    tv->setModel(model);
    tv->resizeColumnsToContents();
    tv->resizeRowsToContents();

    dlg->exec();
    delete dlg;
}


void JKQTBasePlotter::setEmittingSignalsEnabled(bool enabled)
{
    emitSignals=enabled;
    xAxis->setDoUpdateScaling(enabled);
    yAxis->setDoUpdateScaling(enabled);
}


QHash<JKQTBasePlotter::textSizeKey, JKQTBasePlotter::textSizeData> JKQTBasePlotter::s_TextSizeDataCache=QHash<JKQTBasePlotter::textSizeKey, JKQTBasePlotter::textSizeData>();

JKQTBasePlotter::textSizeKey::textSizeKey(const QFont &f, const QString &text, QPaintDevice *pd):
    text(), f(), ldpiX(0), ldpiY(0), pdpiX(0), pdpiY(0)
{
    this->text=text;
    this->f=f;
    if (pd) {
        ldpiX=pd->logicalDpiX();
        ldpiY=pd->logicalDpiY();
        pdpiX=pd->physicalDpiX();
        pdpiY=pd->physicalDpiY();
    } else {
        ldpiX=0;
        ldpiY=0;
        pdpiX=0;
        pdpiY=0;
    }
}

JKQTBasePlotter::textSizeKey::textSizeKey(const QString &fontName, double fontSize, const QString &text, QPaintDevice *pd):
    text(), f(), ldpiX(0), ldpiY(0), pdpiX(0), pdpiY(0)
{
    QFont f;
    f.setFamily(fontName);
    f.setPointSizeF(fontSize);
    this->text=text;
    this->f=f;
    if (pd) {
        ldpiX=pd->logicalDpiX();
        ldpiY=pd->logicalDpiY();
        pdpiX=pd->physicalDpiX();
        pdpiY=pd->physicalDpiY();
    } else {
        ldpiX=0;
        ldpiY=0;
        pdpiX=0;
        pdpiY=0;
    }
}

bool JKQTBasePlotter::textSizeKey::operator==(const JKQTBasePlotter::textSizeKey &other) const
{
    return ldpiX==other.ldpiX &&  ldpiY==other.ldpiY && text==other.text && f==other.f;
}


JKQTBasePlotter::textSizeData::textSizeData():
    ascent(0), descent(0), width(0), strikeoutPos(0)
{

}






bool JKQTPPaintDeviceAdapter::useLatexParser() const
{
    return true;
}

QPaintDevice *JKQTPPaintDeviceAdapter::createPaintdeviceMM(const QString &filename, double widthMM, double heightMM) const
{
    return createPaintdevice(filename, jkqtp_roundTo<int>(widthMM/25.4*QApplication::desktop()->logicalDpiX()), jkqtp_roundTo<int>(heightMM/25.4*QApplication::desktop()->logicalDpiY()));
}

JKQTPSaveDataAdapter::~JKQTPSaveDataAdapter() = default;

JKQTBasePlotter::JKQTPPen::JKQTPPen():
    m_color(QColor("red")),
    m_fillColor(QColor("red").lighter()),
    m_symbolFillColor(QColor("red").lighter()),
    m_errorColor(m_color.darker()),
    m_errorFillColor(m_color.lighter()),
    m_width(2),
    m_errorWidth(2),
    m_symbolLineWidth(1),
    m_style(Qt::SolidLine),
    m_symbolSize(12),
    m_fillStyle(Qt::SolidPattern),
    m_errorFillStyle(Qt::SolidPattern),
    m_symbol(JKQTPCross)
{

}

void JKQTBasePlotter::JKQTPPen::setSymbolSize(double w)
{
    m_symbolSize=w;
}

void JKQTBasePlotter::JKQTPPen::setSymbolLineWidthF(double w)
{
    m_symbolLineWidth=w;
}

void JKQTBasePlotter::JKQTPPen::setWidthF(double w) {
    m_width=w;
}

void JKQTBasePlotter::JKQTPPen::setWidth(double w) {
    m_width=w;
}

void JKQTBasePlotter::JKQTPPen::setErrorLineWidth(double w)
{
    m_errorWidth=w;
}

double JKQTBasePlotter::JKQTPPen::width() const {
    return m_width;
}

double JKQTBasePlotter::JKQTPPen::widthF() const {
    return m_width;
}

double JKQTBasePlotter::JKQTPPen::errorWidthF() const {
    return m_errorWidth;
}

double JKQTBasePlotter::JKQTPPen::symbolLineWidthF() const
{
    return m_symbolLineWidth;
}

double JKQTBasePlotter::JKQTPPen::symbolSize() const
{
    return m_symbolSize;
}

QColor JKQTBasePlotter::JKQTPPen::color() const {
    return m_color;
}

QColor JKQTBasePlotter::JKQTPPen::symbolFillColor() const {
    return m_symbolFillColor;
}

QColor JKQTBasePlotter::JKQTPPen::errorColor() const {
    return m_errorColor;
}

void JKQTBasePlotter::JKQTPPen::setColor(const QColor &col) {
    m_color=col;
}


Qt::PenStyle JKQTBasePlotter::JKQTPPen::style() const {
    return m_style;
}

Qt::PenStyle JKQTBasePlotter::JKQTPPen::errorStyle() const {
    return Qt::SolidLine;
}
void JKQTBasePlotter::JKQTPPen::setStyle(Qt::PenStyle s) {
    m_style=s;
}

QColor JKQTBasePlotter::JKQTPPen::fillColor() const {
    return m_fillColor;
}

QColor JKQTBasePlotter::JKQTPPen::errorFillColor() const {
    return m_errorFillColor;
}

void JKQTBasePlotter::JKQTPPen::setFillColor(const QColor &col) {
    m_fillColor=col;
}

void JKQTBasePlotter::JKQTPPen::setErrorFillColor(const QColor &col)
{
    m_errorFillColor=col;
}

void JKQTBasePlotter::JKQTPPen::setErrorLineColor(const QColor &col)
{
    m_errorColor=col;
}

void JKQTBasePlotter::JKQTPPen::setFillStyle(Qt::BrushStyle s) {
    m_fillStyle=s;
}

void JKQTBasePlotter::JKQTPPen::setErrorFillStyle(Qt::BrushStyle s) {
    m_errorFillStyle=s;
}

void JKQTBasePlotter::JKQTPPen::setSymbolFillColor(QColor c) {
    m_symbolFillColor=c;
}

Qt::BrushStyle JKQTBasePlotter::JKQTPPen::fillStyle() const {
    return m_fillStyle;
}

Qt::BrushStyle JKQTBasePlotter::JKQTPPen::errorFillStyle() const
{
    return m_errorFillStyle;
}

JKQTPGraphSymbols JKQTBasePlotter::JKQTPPen::symbol() const
{
    return m_symbol;
}

void JKQTBasePlotter::JKQTPPen::setSymbolType(JKQTPGraphSymbols symbol)
{
    m_symbol=symbol;
}