/*
    Copyright (c) 2008-2019 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 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 "jkqtplotter/jkqtpgraphsbarchart.h"
#include "jkqtplotter/jkqtpbaseplotter.h"
#include <stdlib.h>
#include <QDebug>
#include <iostream>
#include "jkqtplottertools/jkqtptools.h"
#include "jkqtplotter/jkqtpgraphsimage.h"
#include "jkqtplotter/jkqtpbaseelements.h"
#include "jkqtplotter/jkqtplotter.h"

#define SmallestGreaterZeroCompare_xvsgz() if ((xvsgz>10.0*DBL_MIN)&&((smallestGreaterZero<10.0*DBL_MIN) || (xvsgz<smallestGreaterZero))) smallestGreaterZero=xvsgz;






JKQTPBarVerticalGraph::JKQTPBarVerticalGraph(JKQTBasePlotter* parent):
    JKQTPXYGraph(parent)
{
    baseline=0.0;
    color=QColor("black");
    fillColor=QColor("red");
    style=Qt::SolidLine;
    lineWidth=1;
    fillStyle=Qt::SolidPattern;
    width=0.9;
    shift=0;


    if (parent) { // get style settings from parent object
        parentPlotStyle=parent->getNextStyle();
        fillColor=parent->getPlotStyle(parentPlotStyle).color();
    }
}


JKQTPBarVerticalGraph::JKQTPBarVerticalGraph(JKQTPlotter* parent):
    JKQTPXYGraph(parent)
{
    baseline=0.0;
    color=QColor("black");
    fillColor=QColor("red");
    style=Qt::SolidLine;
    lineWidth=1;
    fillStyle=Qt::SolidPattern;
    width=0.9;
    shift=0;


    if (parent) { // get style settings from parent object
        parentPlotStyle=parent->getNextStyle();
        fillColor=parent->getPlotStyle(parentPlotStyle).color();
    }
}

void JKQTPBarVerticalGraph::drawKeyMarker(JKQTPEnhancedPainter& painter, QRectF& rect) {
    painter.save();
    QPen p=painter.pen();
    QPen np(Qt::NoPen);
    p.setColor(color);
    p.setStyle(style);
    QBrush b=painter.brush();
    b.setColor(fillColor);
    b.setStyle(fillStyle);
    //int y=rect.top()+rect.height()/2.0;
    painter.setPen(p);
    painter.setBrush(b);
    painter.drawRect(rect);
    painter.restore();
}

QColor JKQTPBarVerticalGraph::getKeyLabelColor() {
    return fillColor;
}


void JKQTPBarVerticalGraph::draw(JKQTPEnhancedPainter& painter) {
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaaot("JKQTPBarHorizontalGraph::draw");
#endif
    if (parent==nullptr) return;
    JKQTPDatastore* datastore=parent->getDatastore();
    if (datastore==nullptr) return;

    drawErrorsBefore(painter);

    QPen p=painter.pen();
    p.setColor(color);
    p.setWidthF(qMax(JKQTPLOTTER_ABS_MIN_LINEWIDTH, parent->pt2px(painter, lineWidth*parent->get_lineWidthMultiplier())));
    p.setStyle(style);
    p.setJoinStyle(Qt::RoundJoin);

    QBrush b=painter.brush();
    b.setColor(fillColor);
    b.setStyle(fillStyle);

    int imax=qMin(datastore->getColumn(static_cast<size_t>(xColumn)).getRows(), datastore->getColumn(static_cast<size_t>(yColumn)).getRows());
    int imin=0;
    // interpret data ranges
    if (datarange_start>-1) {
        imin=qMin(datarange_start, static_cast<int>(imax));
    }
    if (datarange_end>-1) {
        imax=qMin(datarange_end+1, static_cast<int>(imax));
    }
    if (imax<imin) {
        int h=imin;
        imin=imax;
        imax=h;
    }
    if (imin<0) imin=0;
    if (imax<0) imax=0;
    painter.save();

//    double x0=transformX(0);
//    if (parent->get_xAxis()->isLogAxis()) x0=transformX(parent->get_xAxis()->getMin());
    double y0=transformY(0);
    if (parent->get_yAxis()->isLogAxis()) y0=transformY(parent->get_yAxis()->getMin());
    double delta=1;
    double deltap=0;
    double deltam=0;
    intSortData();
    const bool hasStackPar=hasStackParent();
    for (int iii=imin; iii<imax; iii++) {
        int i=qBound(imin, getDataIndex(iii), imax);
        double xv=datastore->get(static_cast<size_t>(xColumn),static_cast<size_t>(i));
        int sr=datastore->getNextLowerIndex(xColumn, i, datarange_start, datarange_end);
        int lr=datastore->getNextHigherIndex(xColumn, i, datarange_start, datarange_end);
        double yv=datastore->get(static_cast<size_t>(yColumn),static_cast<size_t>(i));
        double yv0=y0;
        if (!qFuzzyIsNull(baseline)) yv0=transformY(baseline);
        if (hasStackPar) {
            double stackLastY=getParentStackedMax(i);
            const double yvold=yv;
            yv0=transformY(stackLastY)-(get_lineWidth());
            yv=stackLastY+yvold;
        }
        if (sr<0 && lr<0) { // only one x-value
            deltam=0.5;
            deltap=0.5;
        } else if (lr<0) { // the right-most x-value
            deltap=deltam=fabs(xv-datastore->get(xColumn,sr))/2.0;
        } else if (sr<0) { // the left-most x-value
            deltam=deltap=fabs(datastore->get(xColumn,lr)-xv)/2.0;
        } else {
            deltam=fabs(xv-datastore->get(xColumn,sr))/2.0;
            deltap=fabs(datastore->get(xColumn,lr)-xv)/2.0;
        }
        //std::cout<<iii<<", \t"<<i<<", \t"<<sr<<", \t"<<lr<<", \t"<<deltam<<", \t"<<deltap<<"\n\n";
        delta=deltap+deltam;

        if (JKQTPIsOKFloat(xv) && JKQTPIsOKFloat(yv)) {
            double x=transformX(xv+shift*delta-width*deltam);
            double y=transformY(yv);
            double xx=transformX(xv+shift*delta+width*deltap);
            double yy=yv0;

            //std::cout<<"delta="<<delta<<"   x="<<x<<" y="<<y<<"   xx="<<xx<<" yy="<<yy<<std::endl;
            if (yy<y) { qSwap(y,yy); }
            if (JKQTPIsOKFloat(x) && JKQTPIsOKFloat(xx) && JKQTPIsOKFloat(y) && JKQTPIsOKFloat(yy)) {
                painter.setBrush(b);
                painter.setPen(p);
                QRectF r(QPointF(x, y), QPointF(xx, yy));
                painter.drawRect(r);

            }
        }
    }

    painter.restore();
    drawErrorsAfter(painter);
}

bool JKQTPBarVerticalGraph::getXMinMax(double& minx, double& maxx, double& smallestGreaterZero) {
    bool start=true;
    minx=0;
    maxx=0;
    smallestGreaterZero=0;

    if (parent==nullptr) return false;

    JKQTPDatastore* datastore=parent->getDatastore();
    int imin=0;
    int imax=qMin(datastore->getColumn(static_cast<size_t>(xColumn)).getRows(), datastore->getColumn(static_cast<size_t>(yColumn)).getRows());
    // interpret data ranges
    if (datarange_start>-1) {
        imin=qMin(datarange_start, static_cast<int>(imax));
    }
    if (datarange_end>-1) {
        imax=qMin(datarange_end, static_cast<int>(imax));
    }
    if (imax<imin) {
        int h=imin;
        imin=imax;
        imax=h;
    }
    if (imin<0) imin=0;
    if (imax<0) imax=0;

    for (int i=imin; i<imax; i++) {
        double xv=datastore->get(static_cast<size_t>(xColumn),static_cast<size_t>(i));
        int sr=datastore->getNextLowerIndex(xColumn, i, datarange_start, datarange_end);
        int lr=datastore->getNextHigherIndex(xColumn, i, datarange_start, datarange_end);
        double delta, deltap, deltam;

        if (sr<0 && lr<0) { // only one x-value
            deltam=0.5;
            deltap=0.5;
        } else if (lr<0) { // the right-most x-value
            deltap=deltam=fabs(xv-datastore->get(xColumn,sr))/2.0;
        } else if (sr<0) { // the left-most x-value
            deltam=deltap=fabs(datastore->get(xColumn,lr)-xv)/2.0;
        } else {
            deltam=fabs(xv-datastore->get(xColumn,sr))/2.0;
            deltap=fabs(datastore->get(xColumn,lr)-xv)/2.0;
        }
        delta=deltap+deltam;

        if (JKQTPIsOKFloat(xv) && JKQTPIsOKFloat(delta) ) {

            if (start || xv+shift*delta+width*delta/2.0>maxx) maxx=xv+shift*delta+width*delta/2.0;
            if (start || xv+shift*delta-width*delta/2.0<minx) minx=xv+shift*delta-width*delta/2.0;
            double xvsgz;
            xvsgz=xv+shift*delta+width*delta/2.0; SmallestGreaterZeroCompare_xvsgz();
            xvsgz=xv+shift*delta-width*delta/2.0; SmallestGreaterZeroCompare_xvsgz();
            start=false;
        }
    }
    return !start;
}

bool JKQTPBarVerticalGraph::getYMinMax(double& miny, double& maxy, double& smallestGreaterZero) {
    miny=0;
    maxy=0;
    smallestGreaterZero=0;
    if (baseline>0) {
        smallestGreaterZero=baseline;
        miny=baseline;
        maxy=baseline;
    }

    if (parent==nullptr) return false;

    JKQTPDatastore* datastore=parent->getDatastore();
    int imin=0;
    int imax=qMin(datastore->getColumn(static_cast<size_t>(xColumn)).getRows(), datastore->getColumn(static_cast<size_t>(yColumn)).getRows());
    // interpret data ranges
    if (datarange_start>-1) {
        imin=qMin(datarange_start, static_cast<int>(imax));
    }
    if (datarange_end>-1) {
        imax=qMin(datarange_end, static_cast<int>(imax));
    }
    if (imax<imin) {
        int h=imin;
        imin=imax;
        imax=h;
    }
    if (imin<0) imin=0;
    if (imax<0) imax=0;

    for (int i=imin; i<imax; i++) {
        double stack=0;
        double yv=baseline;
        if (!isHorizontal()) {
            stack=getParentStackedMax(i);
            yv=stack;
        }
        if (JKQTPIsOKFloat(yv)) {
            if (yv>maxy) maxy=yv;
            if (yv<miny) miny=yv;
            double xvsgz;
            xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
        }
        yv=stack+datastore->get(static_cast<size_t>(yColumn),static_cast<size_t>(i));
        if (JKQTPIsOKFloat(yv)) {
            if (yv>maxy) maxy=yv;
            if (yv<miny) miny=yv;
            double xvsgz;
            xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
        }
    }
    return true;
}

void JKQTPBarVerticalGraph::autoscaleBarWidthAndShift(double maxWidth, double shrinkFactor)
{
    if (parent) {
        double cntH=0;
        for (size_t i=0; i<parent->getGraphCount(); i++) {
            JKQTPPlotElement* g=parent->getGraph(i);
            JKQTPBarVerticalGraph* gb=qobject_cast<JKQTPBarVerticalGraph*>(g);
            if (gb && gb->isHorizontal()==isHorizontal()) {
                cntH++;
            }

        }

        double widthH=1.0/cntH*maxWidth*shrinkFactor;
        double dH=maxWidth/(cntH);
        double h=0.1+dH/2.0;
        for (size_t i=0; i<parent->getGraphCount(); i++) {
            JKQTPPlotElement* g=parent->getGraph(i);
            JKQTPBarVerticalGraph* gb=qobject_cast<JKQTPBarVerticalGraph*>(g);
            if (gb && gb->isHorizontal()==isHorizontal()) {
                if (cntH>1) {
                    gb->width=widthH;
                    gb->shift=h-0.5;
                    h=h+dH;
                } else {
                    gb->width=maxWidth;
                    gb->shift=0.0;
                }
            }

        }
    }
}

void JKQTPBarVerticalGraph::autoscaleBarWidthAndShiftSeparatedGroups(double groupWidth) {
    autoscaleBarWidthAndShift(groupWidth, 1);
}










JKQTPBarHorizontalGraph::JKQTPBarHorizontalGraph(JKQTBasePlotter *parent):
    JKQTPBarVerticalGraph(parent)
{

}

JKQTPBarHorizontalGraph::JKQTPBarHorizontalGraph(JKQTPlotter *parent):
    JKQTPBarVerticalGraph(parent)
{

}

void JKQTPBarHorizontalGraph::draw(JKQTPEnhancedPainter& painter) {
#ifdef JKQTBP_AUTOTIMER
    JKQTPAutoOutputTimer jkaaot("JKQTPBarVerticalGraph::draw");
#endif
    if (parent==nullptr) return;
    JKQTPDatastore* datastore=parent->getDatastore();
    if (datastore==nullptr) return;

    drawErrorsBefore(painter);

    QPen p=painter.pen();
    p.setColor(color);
    p.setWidthF(qMax(JKQTPLOTTER_ABS_MIN_LINEWIDTH, parent->pt2px(painter, lineWidth*parent->get_lineWidthMultiplier())));
    p.setStyle(style);
    p.setJoinStyle(Qt::RoundJoin);

    QBrush b=painter.brush();
    b.setColor(fillColor);
    b.setStyle(fillStyle);

    int imax=qMin(datastore->getColumn(static_cast<size_t>(xColumn)).getRows(), datastore->getColumn(static_cast<size_t>(yColumn)).getRows());
    int imin=0;
    // interpret data ranges
    if (datarange_start>-1) {
        imin=qMin(datarange_start, static_cast<int>(imax));
    }
    if (datarange_end>-1) {
        imax=qMin(datarange_end+1, static_cast<int>(imax));
    }
    if (imax<imin) {
        int h=imin;
        imin=imax;
        imax=h;
    }
    if (imin<0) imin=0;
    if (imax<0) imax=0;

    double x0=transformX(0);
    if (parent->get_xAxis()->isLogAxis()) x0=transformX(parent->get_xAxis()->getMin());
//    double y0=transformY(0);
//    if (parent->get_yAxis()->isLogAxis()) y0=transformY(parent->get_yAxis()->getMin());
    double delta=1;
    double deltap=0;
    double deltam=0;
    painter.save();
    intSortData();
    const bool hasStackPar=hasStackParent();
    for (int iii=imin; iii<imax; iii++) {
        int i=qBound(imin, getDataIndex(iii), imax);
        double xv=datastore->get(static_cast<size_t>(xColumn),static_cast<size_t>(i));
        double yv=datastore->get(static_cast<size_t>(yColumn),static_cast<size_t>(i));
        int sr=datastore->getNextLowerIndex(yColumn, i, datarange_start, datarange_end);
        int lr=datastore->getNextHigherIndex(yColumn, i, datarange_start, datarange_end);
        double xv0=x0;
        if (!qFuzzyIsNull(baseline)) xv0=transformX(baseline);
        if (hasStackPar) {
            double stackLastX=getParentStackedMax(i);
            const double xvold=xv;
            xv0=transformX(stackLastX)+(get_lineWidth());
            xv=stackLastX+xvold;
        }


        if (sr<0 && lr<0) { // only one y-value
            deltam=0.5;
            deltap=0.5;
        } else if (lr<0) { // the right-most y-value
            deltap=deltam=fabs(yv-datastore->get(yColumn,sr))/2.0;
        } else if (sr<0) { // the left-most y-value
            deltam=deltap=fabs(datastore->get(yColumn,lr)-yv)/2.0;
        } else {
            deltam=fabs(yv-datastore->get(yColumn,sr))/2.0;
            deltap=fabs(datastore->get(yColumn,lr)-yv)/2.0;
        }
        delta=deltap+deltam;

        if (JKQTPIsOKFloat(xv) && JKQTPIsOKFloat(yv)) {
            double x=xv0;
            if (!qFuzzyIsNull(baseline)) x=transformX(baseline);
            double y=transformY(yv+shift*delta+width*deltap);
            double xx=transformX(xv);
            double yy=transformY(yv+shift*delta-width*deltam);
            if (x>xx) { qSwap(x,xx); }
            //qDebug()<<"delta="<<delta<<"   x="<<x<<" y="<<y<<"   xx="<<xx<<" yy="<<yy;
            //qDebug()<<"xv="<<xv<<"   x0="<<x0<<"   x="<<x<<"..."<<xx;
            if (JKQTPIsOKFloat(x) && JKQTPIsOKFloat(xx) && JKQTPIsOKFloat(y) && JKQTPIsOKFloat(yy)) {
                painter.setBrush(b);
                painter.setPen(p);
                QRectF r(QPointF(x, y), QPointF(xx, yy));
                painter.drawRect(r);
            }
        }
    }

    painter.restore();
    drawErrorsAfter(painter);
}

bool JKQTPBarHorizontalGraph::getXMinMax(double& minx, double& maxx, double& smallestGreaterZero) {
    minx=0;
    maxx=0;
    smallestGreaterZero=0;
    if (baseline>0) {
        smallestGreaterZero=baseline;
        minx=baseline;
        maxx=baseline;
    }

    if (parent==nullptr) return false;

    JKQTPDatastore* datastore=parent->getDatastore();
    int imin=0;
    int imax=qMin(datastore->getColumn(static_cast<size_t>(xColumn)).getRows(), datastore->getColumn(static_cast<size_t>(xColumn)).getRows());
    // interpret data ranges
    if (datarange_start>-1) {
        imin=qMin(datarange_start, static_cast<int>(imax));
    }
    if (datarange_end>-1) {
        imax=qMin(datarange_end, static_cast<int>(imax));
    }
    if (imax<imin) {
        int h=imin;
        imin=imax;
        imax=h;
    }
    if (imin<0) imin=0;
    if (imax<0) imax=0;

    for (int i=imin; i<imax; i++) {
        double stack=0;
        double xv=baseline;
        if (isHorizontal()) {
            stack=getParentStackedMax(i);
            xv=stack;
        }
        if (JKQTPIsOKFloat(xv)) {
            if (xv>maxx) maxx=xv;
            if (xv<minx) minx=xv;
            double xvsgz;
            xvsgz=xv; SmallestGreaterZeroCompare_xvsgz();
        }
        xv=stack+datastore->get(static_cast<size_t>(xColumn),static_cast<size_t>(i));
        if (JKQTPIsOKFloat(xv)) {
            if (xv>maxx) maxx=xv;
            if (xv<minx) minx=xv;
            double xvsgz;
            xvsgz=xv; SmallestGreaterZeroCompare_xvsgz();
        }
    }
    return true;
}

bool JKQTPBarHorizontalGraph::getYMinMax(double& miny, double& maxy, double& smallestGreaterZero) {
    bool start=true;
    miny=0;
    maxy=0;
    smallestGreaterZero=0;

    if (parent==nullptr) return false;

    JKQTPDatastore* datastore=parent->getDatastore();
    int imin=0;
    int imax=qMin(datastore->getColumn(static_cast<size_t>(xColumn)).getRows(), datastore->getColumn(static_cast<size_t>(yColumn)).getRows());
    // interpret data ranges
    if (datarange_start>-1) {
        imin=qMin(datarange_start, static_cast<int>(imax));
    }
    if (datarange_end>-1) {
        imax=qMin(datarange_end, static_cast<int>(imax));
    }
    if (imax<imin) {
        int h=imin;
        imin=imax;
        imax=h;
    }
    if (imin<0) imin=0;
    if (imax<0) imax=0;

    for (int i=imin; i<imax; i++) {
        double yv=datastore->get(static_cast<size_t>(yColumn),static_cast<size_t>(i));
        double delta, deltap, deltam;
        int sr=datastore->getNextLowerIndex(yColumn, i, datarange_start, datarange_end);
        int lr=datastore->getNextHigherIndex(yColumn, i, datarange_start, datarange_end);

        if (sr<0 && lr<0) { // only one y-value
            deltam=0.5;
            deltap=0.5;
        } else if (lr<0) { // the right-most y-value
            deltap=deltam=fabs(yv-datastore->get(yColumn,sr))/2.0;
        } else if (sr<0) { // the left-most y-value
            deltam=deltap=fabs(datastore->get(yColumn,lr)-yv)/2.0;
        } else {
            deltam=fabs(yv-datastore->get(yColumn,sr))/2.0;
            deltap=fabs(datastore->get(yColumn,lr)-yv)/2.0;
        }
        delta=deltap+deltam;
        if (JKQTPIsOKFloat(yv) && JKQTPIsOKFloat(delta) ) {

            if (start || yv+shift*delta+width*delta/2.0>maxy) maxy=yv+shift*delta+width*delta/2.0;
            if (start || yv+shift*delta-width*delta/2.0<miny) miny=yv+shift*delta-width*delta/2.0;
            double xvsgz;
            xvsgz=yv+shift*delta+width*delta/2.0; SmallestGreaterZeroCompare_xvsgz();
            xvsgz=yv+shift*delta-width*delta/2.0; SmallestGreaterZeroCompare_xvsgz();
            start=false;
        }
    }
    return !start;
}

bool JKQTPBarHorizontalGraph::isHorizontal() const
{
    return true;
}







QBrush JKQTPBarVerticalGraph::getBrush(JKQTPEnhancedPainter& /*painter*/) const {
    QBrush b;
    b.setColor(fillColor);
    b.setStyle(fillStyle);
    return b;
}

QPen JKQTPBarVerticalGraph::getLinePen(JKQTPEnhancedPainter& painter) const {
    QPen p;
    p.setColor(color);
    p.setWidthF(qMax(JKQTPLOTTER_ABS_MIN_LINEWIDTH,parent->pt2px(painter, parent->get_lineWidthMultiplier()*lineWidth)));
    p.setStyle(style);
    p.setJoinStyle(Qt::RoundJoin);
    p.setCapStyle(Qt::RoundCap);

    return p;
}

double JKQTPBarVerticalGraph::getParentStackedMax(int /*index*/) const
{
    return false;
}

bool JKQTPBarVerticalGraph::hasStackParent() const
{
    return false;
}

double JKQTPBarVerticalGraph::getStackedMax(int /*index*/) const
{
    return baseline;
}



bool JKQTPBarVerticalGraph::isHorizontal() const
{
    return false;
}

void JKQTPBarVerticalGraph::set_fillColor_and_darkenedColor(QColor fill, int colorDarker)
{
    set_fillColor(fill);
    set_color(fill.darker(colorDarker));
}

JKQTPBarHorizontalErrorGraph::JKQTPBarHorizontalErrorGraph(JKQTBasePlotter *parent):
    JKQTPBarHorizontalGraph(parent), JKQTPXGraphErrors()
{
    setErrorColorFromGraphColor(color);
}

JKQTPBarHorizontalErrorGraph::JKQTPBarHorizontalErrorGraph(JKQTPlotter *parent):
    JKQTPBarHorizontalGraph(parent), JKQTPXGraphErrors()
{
    setErrorColorFromGraphColor(color);
}

bool JKQTPBarHorizontalErrorGraph::usesColumn(int c) const
{
    return JKQTPBarHorizontalGraph::usesColumn(c)|| JKQTPXGraphErrors::errorUsesColumn(c);
}

bool JKQTPBarHorizontalErrorGraph::getXMinMax(double &minx, double &maxx, double &smallestGreaterZero)
{
    if (xErrorColumn<0 || xErrorStyle==JKQTPNoError) {
        return JKQTPBarHorizontalGraph::getXMinMax(minx, maxx, smallestGreaterZero);
    } else {
        bool start=false;
        minx=0;
        maxx=0;
        smallestGreaterZero=0;

        if (parent==nullptr) return false;

        JKQTPDatastore* datastore=parent->getDatastore();
        int imin=0;
        int imax=qMin(datastore->getColumn(static_cast<size_t>(xColumn)).getRows(), datastore->getColumn(static_cast<size_t>(yColumn)).getRows());
        // interpret data ranges
        if (datarange_start>-1) {
            imin=qMin(datarange_start, static_cast<int>(imax));
        }
        if (datarange_end>-1) {
            imax=qMin(datarange_end, static_cast<int>(imax));
        }
        if (imax<imin) {
            int h=imin;
            imin=imax;
            imax=h;
        }
        if (imin<0) imin=0;
        if (imax<0) imax=0;

        for (int i=imin; i<imax; i++) {
            double xvsgz;
            double xv=datastore->get(static_cast<size_t>(xColumn),static_cast<size_t>(i))+getXErrorU(i, datastore);
            double xvv=datastore->get(static_cast<size_t>(xColumn),static_cast<size_t>(i))-getXErrorL(i, datastore);
            if (JKQTPIsOKFloat(xv) && JKQTPIsOKFloat(xvv) ) {
                if (start || xv>maxx) maxx=xv;
                if (start || xv<minx) minx=xv;
                xvsgz=xv; SmallestGreaterZeroCompare_xvsgz();
                start=false;
                if (start || xvv>maxx) maxx=xvv;
                if (start || xvv<minx) minx=xvv;
                xvsgz=xvv; SmallestGreaterZeroCompare_xvsgz();
                start=false;
            }
        }
        return !start;
    }
}

void JKQTPBarHorizontalErrorGraph::drawErrorsAfter(JKQTPEnhancedPainter &painter)
{
    if (sortData==JKQTPXYGraph::Unsorted) plotErrorIndicators(painter, parent, this, xColumn, yColumn, datarange_start, datarange_end, 0.0, shift);
    else plotErrorIndicators(painter, parent, this, xColumn, yColumn, datarange_start, datarange_end, 0.0, shift, &sortedIndices);
}

JKQTPBarVerticalErrorGraph::JKQTPBarVerticalErrorGraph(JKQTBasePlotter *parent):
    JKQTPBarVerticalGraph(parent), JKQTPYGraphErrors()
{
    setErrorColorFromGraphColor(color);
}

JKQTPBarVerticalErrorGraph::JKQTPBarVerticalErrorGraph(JKQTPlotter *parent):
    JKQTPBarVerticalGraph(parent), JKQTPYGraphErrors()
{
    setErrorColorFromGraphColor(color);
}

bool JKQTPBarVerticalErrorGraph::usesColumn(int c) const
{
    return JKQTPBarVerticalGraph::usesColumn(c)|| JKQTPYGraphErrors::errorUsesColumn(c);
}

bool JKQTPBarVerticalErrorGraph::getYMinMax(double &miny, double &maxy, double &smallestGreaterZero)
{
    if (yErrorColumn<0 || yErrorStyle==JKQTPNoError) {
        miny=0;
        maxy=0;
        smallestGreaterZero=0;
        if (baseline>0) {
            smallestGreaterZero=baseline;
            miny=baseline;
            maxy=baseline;
        }

        if (parent==nullptr) return false;

        JKQTPDatastore* datastore=parent->getDatastore();
        int imin=0;
        int imax=qMin(datastore->getColumn(static_cast<size_t>(xColumn)).getRows(), datastore->getColumn(static_cast<size_t>(yColumn)).getRows());
        // interpret data ranges
        if (datarange_start>-1) {
            imin=qMin(datarange_start, static_cast<int>(imax));
        }
        if (datarange_end>-1) {
            imax=qMin(datarange_end, static_cast<int>(imax));
        }
        if (imax<imin) {
            int h=imin;
            imin=imax;
            imax=h;
        }
        if (imin<0) imin=0;
        if (imax<0) imax=0;

        for (int i=imin; i<imax; i++) {
            double yv=baseline;
            if (JKQTPIsOKFloat(yv)) {
                if (yv>maxy) maxy=yv;
                if (yv<miny) miny=yv;
                double xvsgz;
                xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
            }
            yv=datastore->get(static_cast<size_t>(yColumn),static_cast<size_t>(i));
            if (JKQTPIsOKFloat(yv)) {
                if (yv>maxy) maxy=yv;
                if (yv<miny) miny=yv;
                double xvsgz;
                xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
            }
        }
        return true;
    } else {
        bool start=false;
        miny=baseline;
        maxy=baseline;
        smallestGreaterZero=0;
        if (baseline>0) {
            smallestGreaterZero=baseline;
            miny=baseline;
            maxy=baseline;
        }

        if (parent==nullptr) return false;

        JKQTPDatastore* datastore=parent->getDatastore();
        int imin=0;
        int imax=qMin(datastore->getColumn(static_cast<size_t>(xColumn)).getRows(), datastore->getColumn(static_cast<size_t>(yColumn)).getRows());
        // interpret data ranges
        if (datarange_start>-1) {
            imin=qMin(datarange_start, static_cast<int>(imax));
        }
        if (datarange_end>-1) {
            imax=qMin(datarange_end, static_cast<int>(imax));
        }
        if (imax<imin) {
            int h=imin;
            imin=imax;
            imax=h;
        }
        if (imin<0) imin=0;
        if (imax<0) imax=0;


        for (int i=imin; i<imax; i++) {
            double yv=datastore->get(static_cast<size_t>(yColumn),static_cast<size_t>(i))+getYErrorU(i, datastore);
            double yvv=datastore->get(static_cast<size_t>(yColumn),static_cast<size_t>(i))-getYErrorL(i, datastore);
            if (JKQTPIsOKFloat(yv) && JKQTPIsOKFloat(yvv) ) {
                if (start || yv>maxy) maxy=yv;
                if (start || yv<miny) miny=yv;
                double xvsgz;
                xvsgz=yv; SmallestGreaterZeroCompare_xvsgz();
                if (start || yvv>maxy) maxy=yvv;
                if (start || yvv<miny) miny=yvv;
                xvsgz=yvv; SmallestGreaterZeroCompare_xvsgz();
                start=false;
            }
        }
        return !start;
    }
}

void JKQTPBarVerticalErrorGraph::drawErrorsAfter(JKQTPEnhancedPainter &painter)
{
    //plotErrorIndicators(painter, parent, this, xColumn, yColumn, datarange_start, datarange_end, shift, 0.0);
    if (sortData==JKQTPXYGraph::Unsorted) plotErrorIndicators(painter, parent, this, xColumn, yColumn, datarange_start, datarange_end, shift, 0.0);
    else plotErrorIndicators(painter, parent, this, xColumn, yColumn, datarange_start, datarange_end, shift, 0, &sortedIndices);
}

JKQTPBarVerticalStackableGraph::JKQTPBarVerticalStackableGraph(JKQTBasePlotter *parent):
    JKQTPBarVerticalGraph(parent), stackParent(nullptr)
{

}

JKQTPBarVerticalStackableGraph::JKQTPBarVerticalStackableGraph(JKQTPlotter *parent):
    JKQTPBarVerticalGraph(parent), stackParent(nullptr)
{

}

void JKQTPBarVerticalStackableGraph::stackUpon(JKQTPBarVerticalStackableGraph *parentGraph)
{
    stackParent=parentGraph;
}

void JKQTPBarVerticalStackableGraph::dontStackUpon()
{
    stackParent=nullptr;
}

double JKQTPBarVerticalStackableGraph::getParentStackedMax(int index) const
{
    if (stackParent) {
        return stackParent->getStackedMax(index);
    } else {
        return 0.0;
    }
}

bool JKQTPBarVerticalStackableGraph::hasStackParent() const
{
    return stackParent!=nullptr;
}

const JKQTPBarVerticalStackableGraph *JKQTPBarVerticalStackableGraph::getStackParent() const
{
    return stackParent;
}



double JKQTPBarVerticalStackableGraph::getStackedMax(int index) const
{
    double height=0;
    if (parent!=nullptr) {
        JKQTPDatastore* datastore=parent->getDatastore();
        height=datastore->get(static_cast<size_t>(yColumn),static_cast<size_t>(index));
    }
    if (stackParent==nullptr) {
        return height;
    } else {
        return stackParent->getStackedMax(index)+height;
    }
}

JKQTPBarHorizontalStackableGraph::JKQTPBarHorizontalStackableGraph(JKQTBasePlotter *parent):
    JKQTPBarHorizontalGraph(parent), stackParent(nullptr)
{

}

JKQTPBarHorizontalStackableGraph::JKQTPBarHorizontalStackableGraph(JKQTPlotter *parent):
    JKQTPBarHorizontalGraph(parent), stackParent(nullptr)
{

}

void JKQTPBarHorizontalStackableGraph::stackUpon(JKQTPBarHorizontalStackableGraph *parentGraph)
{
    stackParent=parentGraph;
}

void JKQTPBarHorizontalStackableGraph::dontStackUpon()
{
    stackParent=nullptr;
}

const JKQTPBarHorizontalStackableGraph *JKQTPBarHorizontalStackableGraph::getStackParent() const
{
    return stackParent;
}


double JKQTPBarHorizontalStackableGraph::getStackedMax(int index) const
{
    double height=0;
    if (parent!=nullptr) {
        JKQTPDatastore* datastore=parent->getDatastore();
        height=datastore->get(static_cast<size_t>(xColumn),static_cast<size_t>(index));
    }
    if (stackParent==nullptr) {
        return height;
    } else {
        return stackParent->getStackedMax(index)+height;
    }
}

double JKQTPBarHorizontalStackableGraph::getParentStackedMax(int index) const
{
    if (stackParent) {
        return stackParent->getStackedMax(index);
    } else {
        return 0.0;
    }
}

bool JKQTPBarHorizontalStackableGraph::hasStackParent() const
{
    return stackParent!=nullptr;
}