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FSUDAQ_Qt6/Histogram2D.h

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#ifndef HISTOGRAM_2D_H
#define HISTOGRAM_2D_H
#include "qcustomplot.h"
const QList<QPair<QColor, QString>> colorCycle = { {QColor(Qt::red), "Red"},
{QColor(Qt::blue), "Blue"},
{QColor(Qt::darkGreen), "Dark Geen"},
{QColor(Qt::darkCyan), "Dark Cyan"},
{QColor(Qt::darkYellow), "Drak Yellow"},
{QColor(Qt::magenta), "Magenta"},
{QColor(Qt::darkMagenta), "Dark Magenta"},
{QColor(Qt::gray), "Gray"}};
//^==============================================
//^==============================================
class Histogram2D : public QCustomPlot{
public:
Histogram2D(QString title, QString xLabel, QString yLabel, int xbin, double xmin, double xmax, int ybin, double ymin, double ymax, QWidget * parent = nullptr) : QCustomPlot(parent){
for( int i = 0; i < 3; i ++ ){
for( int j = 0; j < 3; j ++ ){
box[i][j] = nullptr;
txt[i][j] = nullptr;
}
}
isChannelMap = false;
tickStep = 1; // only used when isChannelMap = true
axisRect()->setupFullAxesBox(true);
xAxis->setLabel(xLabel);
yAxis->setLabel(yLabel);
colorMap = new QCPColorMap(xAxis, yAxis);
Rebin(xbin, xmin, xmax, ybin, ymin, ymax);
colorMap->setInterpolate(false);
QCPTextElement *titleEle = new QCPTextElement(this, title, QFont("sans", 12));
plotLayout()->insertRow(0);
plotLayout()->addElement(0, 0, titleEle);
colorScale = new QCPColorScale(this);
plotLayout()->addElement(1, 1, colorScale);
colorScale->setType(QCPAxis::atRight);
colorMap->setColorScale(colorScale);
QCPColorGradient color;
color.clearColorStops();
color.setColorStopAt( 0.0, QColor("white" ));
color.setColorStopAt( 0.000001, QColor("purple" ));
color.setColorStopAt( 0.2, QColor("blue"));
color.setColorStopAt( 0.4, QColor("cyan"));
color.setColorStopAt( 0.6, QColor("green"));
color.setColorStopAt( 0.8, QColor("yellow"));
color.setColorStopAt( 1.0, QColor("red"));
colorMap->setGradient(color);
double xPosStart = 0.02;
double xPosStep = 0.07;
double yPosStart = 0.02;
double yPosStep = 0.05;
for( int i = 0; i < 3; i ++ ){
for( int j = 0; j < 3; j ++ ){
box[i][j] = new QCPItemRect(this);
box[i][j]->topLeft->setType(QCPItemPosition::ptAxisRectRatio);
box[i][j]->topLeft->setCoords(xPosStart + xPosStep*i, yPosStart + yPosStep*j);
box[i][j]->bottomRight->setType(QCPItemPosition::ptAxisRectRatio);
box[i][j]->bottomRight->setCoords(xPosStart + xPosStep*(i+1), yPosStart + yPosStep*(j+1));
txt[i][j] = new QCPItemText(this);
txt[i][j]->setPositionAlignment(Qt::AlignLeft);
txt[i][j]->position->setType(QCPItemPosition::ptAxisRectRatio);
txt[i][j]->position->setCoords(xPosStart + xPosStep/2 + xPosStep*i, yPosStart + yPosStep*j);;
txt[i][j]->setText("0");
txt[i][j]->setFont(QFont("Helvetica", 9));
}
}
cutList.clear();
cutEntryList.clear();
rescaleAxes();
usingMenu = false;
isDrawCut = false;
tempCutID = -1;
numCut = 0;
lastPlottableID = -1;
line = new QCPItemLine(this);
line->setPen(QPen(Qt::gray, 1, Qt::DashLine));
line->setVisible(false);
isBusy = false;
connect(this, &QCustomPlot::mouseMove, this, [=](QMouseEvent *event){
double x = xAxis->pixelToCoord(event->pos().x());
double y = yAxis->pixelToCoord(event->pos().y());
int xI, yI;
colorMap->data()->coordToCell(x, y, &xI, &yI);
double z = colorMap->data()->cell(xI, yI);
QString coordinates = QString("X: %1, Y: %2, Z: %3").arg(x).arg(y).arg(z);
QToolTip::showText(event->globalPosition().toPoint(), coordinates, this);
//when drawing cut, show dashhed line
if( isDrawCut && tempCut.size() > 0 ){
line->end->setCoords(x,y);
line->setVisible(true);
replot();
}
});
connect(this, &QCustomPlot::mousePress, this, [=](QMouseEvent * event){
if (event->button() == Qt::LeftButton && !usingMenu && !isDrawCut){
setSelectionRectMode(QCP::SelectionRectMode::srmZoom);
}
if (event->button() == Qt::LeftButton && isDrawCut){
oldMouseX = xAxis->pixelToCoord(event->pos().x());
oldMouseY = yAxis->pixelToCoord(event->pos().y());
tempCut.push_back(QPointF(oldMouseX,oldMouseY));
line->start->setCoords(oldMouseX, oldMouseY);
line->end->setCoords(oldMouseX, oldMouseY);
line->setVisible(true);
DrawCut();
}
//^================= right click
if (event->button() == Qt::RightButton) rightMouseClickMenu(event);
});
//connect( this, &QCustomPlot::mouseDoubleClick, this, [=](QMouseEvent *event){
connect( this, &QCustomPlot::mouseDoubleClick, this, [=](){
if( isDrawCut) {
tempCut.push_back(tempCut[0]);
DrawCut();
isDrawCut = false;
line->setVisible(false);
plottableIDList.push_back(plottableCount() -1 );
cutNameList.push_back("Cut-" + QString::number(cutList.count()));
cutEntryList.push_back(0);
QCPItemText * text = new QCPItemText(this);
text->setText(cutNameList.last());
text->position->setCoords(tempCut[0].rx(), tempCut[0].ry());
int colorID = tempCutID% colorCycle.count();
text->setColor(colorCycle[colorID].first);
cutTextIDList.push_back(itemCount() - 1);
replot();
cutList.push_back(tempCut);
cutIDList.push_back(tempCutID);
// qDebug() << "----------- end of create cut";
// qDebug() << " cutIDList " << cutIDList ;
// qDebug() << "plottableIDList " << plottableIDList << ", " << plottableCount();
// qDebug() << " cutTextIDList " << cutTextIDList << ", " << itemCount();
}
});
connect(this, &QCustomPlot::mouseRelease, this, [=](){
});
}
//^===================================
void SetXTitle(QString xTitle) { xAxis->setLabel(xTitle); }
void SetYTitle(QString yTitle) { yAxis->setLabel(yTitle); }
void Rebin(int xbin, double xmin, double xmax, int ybin, double ymin, double ymax);
void SetChannelMap(bool onOff, int tickStep = 1) { isChannelMap = onOff; this->tickStep = tickStep;}
void UpdatePlot(){
QCPColorGradient color;
color.clearColorStops();
color.setColorStopAt( 0.0, QColor("white" ));
color.setColorStopAt( 1.0/entry[1][1], QColor("purple" ));
color.setColorStopAt( 0.2, QColor("blue"));
color.setColorStopAt( 0.4, QColor("cyan"));
color.setColorStopAt( 0.6, QColor("green"));
color.setColorStopAt( 0.8, QColor("yellow"));
color.setColorStopAt( 1.0, QColor("red"));
colorMap->setGradient(color);
colorMap->rescaleDataRange();
replot();
}
void Clear(); // Clear Data and histrogram
void Fill(double x, double y);
void DrawCut();
void ClearAllCuts();
QList<QPolygonF> GetCutList() const{return cutList;} // this list may contain empty element
QList<int> GetCutEntryList() const{ return cutEntryList;}
QList<QString> GetCutNameList() const { return cutNameList;}
void PrintCutEntry() const;
double GetXNBin() const {return xBin;}
double GetXMin() const {return xMin;}
double GetXMax() const {return xMax;}
double GetYNBin() const {return yBin;}
double GetYMin() const {return yMin;}
double GetYMax() const {return yMax;}
private:
double xMin, xMax, yMin, yMax;
int xBin, yBin;
bool isChannelMap;
int tickStep;
QCPColorMap * colorMap;
QCPColorScale *colorScale;
bool usingMenu;
int entry[3][3]; // overflow counter, entrt[1][1] is entry in the plot;
QCPItemRect * box[3][3];
QCPItemText * txt[3][3];
QPolygonF tempCut;
int tempCutID; // only incresing;
QList<QPolygonF> cutList;
QList<int> cutIDList;
int numCut;
bool isDrawCut;
int lastPlottableID;
QList<int> cutTextIDList;
QList<int> plottableIDList;
QList<QString> cutNameList;
QList<int> cutEntryList;
QCPItemLine * line;
double oldMouseX = 0.0, oldMouseY = 0.0;
bool isBusy;
void rightMouseClickMenu(QMouseEvent * event);
void rightMouseClickRebin();
};
//^###############################################
//^###############################################
inline void Histogram2D::Fill(double x, double y){
if( isBusy ) return;
int xIndex, yIndex;
colorMap->data()->coordToCell(x, y, &xIndex, &yIndex);
//printf("%f, %d %d| %f, %d %d\n", x, xIndex, xBin, y, yIndex, yBin);
int xk = 1, yk = 1;
if( xIndex < 0 ) xk = 0;
if( xIndex >= xBin ) xk = 2;
if( yIndex < 0 ) yk = 0;
if( yIndex >= yBin ) yk = 2;
entry[xk][yk] ++;
txt[xk][yk]->setText(QString::number(entry[xk][yk]));
if( xk == 1 && yk == 1 ) {
double value = colorMap->data()->cell(xIndex, yIndex);
colorMap->data()->setCell(xIndex, yIndex, value + 1);
for( int i = 0; i < cutList.count(); i++){
if( cutList[i].isEmpty() ) continue;
if( cutList[i].containsPoint(QPointF(x,y), Qt::OddEvenFill) ) cutEntryList[i] ++;
}
}
}
inline void Histogram2D::Rebin(int xbin, double xmin, double xmax, int ybin, double ymin, double ymax){
xMin = xmin;
xMax = xmax;
yMin = ymin;
yMax = ymax;
xBin = xbin + 2;
yBin = ybin + 2;
colorMap->data()->clear();
colorMap->data()->setSize(xBin, yBin);
colorMap->data()->setRange(QCPRange(xMin, xMax), QCPRange(yMin, yMax));
if( isChannelMap ){
QCPAxis * xAxis = colorMap->keyAxis();
xAxis->ticker()->setTickCount(xbin/tickStep);
xAxis->ticker()->setTickOrigin(0);
}
for( int i = 0; i < 3; i ++){
for( int j = 0; j < 3; j ++){
entry[i][j] = 0;
if( txt[i][j] ) txt[i][j]->setText("0");
}
}
}
inline void Histogram2D::Clear(){
for( int i = 0; i < 3; i ++){
for( int j = 0; j < 3; j ++){
entry[i][j] = 0;
txt[i][j]->setText("0");
}
}
colorMap->data()->clear();
colorMap->data()->setSize(xBin, yBin);
colorMap->data()->setRange(QCPRange(xMin, xMax), QCPRange(yMin, yMax));
UpdatePlot();
}
inline void Histogram2D::ClearAllCuts(){
numCut = 0;
tempCutID = -1;
lastPlottableID = -1;
cutList.clear();
cutIDList.clear();
for( int i = cutTextIDList.count() - 1; i >= 0 ; i--){
if( cutTextIDList[i] < 0 ) continue;
removeItem(cutTextIDList[i]);
removePlottable(plottableIDList[i]);
}
replot();
cutTextIDList.clear();
plottableIDList.clear();
cutNameList.clear();
cutEntryList.clear();
}
inline void Histogram2D::PrintCutEntry() const{
if( numCut == 0 ) return;
printf("=============== There are %d cuts.\n", numCut);
for( int i = 0; i < cutList.count(); i++){
if( cutList[i].isEmpty() ) continue;
printf("%10s | %d \n", cutNameList[i].toStdString().c_str(), cutEntryList[i]);
}
}
inline void Histogram2D::DrawCut(){
//The histogram is the 1st plottable.
// the lastPlottableID should be numCut+ 1
if( lastPlottableID != numCut ){
removePlottable(lastPlottableID);
}
if(tempCut.size() > 0) {
QCPCurve *polygon = new QCPCurve(xAxis, yAxis);
lastPlottableID = plottableCount() - 1;
int colorID = tempCutID% colorCycle.count();
QPen pen(colorCycle[colorID].first);
pen.setWidth(1);
polygon->setPen(pen);
QVector<QCPCurveData> dataPoints;
for (const QPointF& point : tempCut) {
dataPoints.append(QCPCurveData(dataPoints.size(), point.x(), point.y()));
}
polygon->data()->set(dataPoints, false);
}
replot();
//qDebug() << "Plottable count : " << plottableCount() << ", cutList.count :" << cutList.count() << ", cutID :" << lastPlottableID;
}
inline void Histogram2D::rightMouseClickMenu(QMouseEvent * event){
usingMenu = true;
setSelectionRectMode(QCP::SelectionRectMode::srmNone);
QMenu *menu = new QMenu(this);
menu->setAttribute(Qt::WA_DeleteOnClose);
QAction * a1 = menu->addAction("UnZoom");
QAction * a2 = menu->addAction("Clear hist.");
QAction * a3 = menu->addAction("Toggle Stat.");
QAction * a4 = menu->addAction("Rebin (clear histogram)");
QAction * a5 = menu->addAction("Create a Cut");
if( numCut > 0 ) {
menu->addSeparator();
menu->addAction("Add/Edit names to Cuts");
menu->addAction("Clear all Cuts");
}
for( int i = 0; i < cutList.size(); i++){
if( cutList[i].isEmpty()) continue;
QString haha = "";
menu->addAction("Delete " + cutNameList[i] + " ["+ colorCycle[cutIDList[i]%colorCycle.count()].second+"]");
}
QAction *selectedAction = menu->exec(event->globalPosition().toPoint());
if( selectedAction == a1 ){
xAxis->setRangeLower(xMin);
xAxis->setRangeUpper(xMax);
yAxis->setRangeLower(yMin);
yAxis->setRangeUpper(yMax);
replot();
usingMenu = false;
return;
}
if( selectedAction == a2 ) {
Clear();
usingMenu = false;
return;
}
if( selectedAction == a3 ){
for( int i = 0; i < 3; i ++ ){
for( int j = 0; j < 3; j ++ ){
box[i][j]->setVisible( !box[i][j]->visible());
txt[i][j]->setVisible( !txt[i][j]->visible());
}
}
replot();
usingMenu = false;
return;
}
if( selectedAction == a4){
rightMouseClickRebin();
usingMenu = false;
return;
}
if( selectedAction == a5 ){
tempCut.clear();
tempCutID ++;
isDrawCut= true;
usingMenu = false;
numCut ++;
return;
}
if( selectedAction && numCut > 0 && selectedAction->text().contains("Delete ") ){
QString haha = selectedAction->text();
int index1 = haha.indexOf("-");
int index2 = haha.indexOf("[");
int cutID = haha.mid(index1+1, index2-index1-1).remove(' ').toInt();
removeItem(cutTextIDList[cutID]);
removePlottable(plottableIDList[cutID]);
replot();
numCut --;
cutList[cutID].clear();
cutIDList[cutID] = -1;
cutTextIDList[cutID] = -1;
plottableIDList[cutID] = -1;
cutNameList[cutID] = "";
cutEntryList[cutID] = -1;
for( int i = cutID + 1; i < cutTextIDList.count() ; i++){
cutTextIDList[i] --;
plottableIDList[i] --;
}
if( numCut == 0 ){
tempCutID = -1;
lastPlottableID = -1;
cutList.clear();
cutIDList.clear();
cutTextIDList.clear();
plottableIDList.clear();
cutNameList.clear();
cutEntryList.clear();
}
return;
}
if( selectedAction && numCut > 0 && selectedAction->text().contains("Clear all Cuts") ){
ClearAllCuts();
return;
}
if( selectedAction && numCut > 0 && selectedAction->text().contains("Add/Edit names to Cuts") ){
QDialog dialog(this);
dialog.setWindowTitle("Add/Edit name of cuts ");
QFormLayout layout(&dialog);
for(int i = 0; i < cutTextIDList.count(); i++){
if( cutTextIDList[i] < 0 ) continue;
QLineEdit * le = new QLineEdit(&dialog);
layout.addRow(colorCycle[i%colorCycle.count()].second, le);
le->setText( cutNameList[i] );
connect(le, &QLineEdit::textChanged, this, [=](){
le->setStyleSheet("color : blue;");
});
connect(le, &QLineEdit::returnPressed, this, [=](){
le->setStyleSheet("");
cutNameList[i] = le->text();
((QCPItemText *) this->item(cutTextIDList[i]))->setText(le->text());
replot();
});
}
dialog.exec();
return;
}
}
inline void Histogram2D::rightMouseClickRebin(){
QDialog dialog(this);
dialog.setWindowTitle("Rebin histogram");
QFormLayout layout(&dialog);
QLabel * info = new QLabel(&dialog);
info->setStyleSheet("color:red;");
info->setText("This will also clear histogram!!");
layout.addRow(info);
QStringList nameListX = {"Num. x-Bin", "x-Min", "x-Max"};
QLineEdit* lineEditX[3];
for (int i = 0; i < 3; ++i) {
lineEditX[i] = new QLineEdit(&dialog);
layout.addRow(nameListX[i] + " : ", lineEditX[i]);
}
lineEditX[0]->setText(QString::number(xBin));
lineEditX[1]->setText(QString::number(xMin));
lineEditX[2]->setText(QString::number(xMax));
QStringList nameListY = {"Num. y-Bin", "y-Min", "y-Max"};
QLineEdit* lineEditY[3];
for (int i = 0; i < 3; ++i) {
lineEditY[i] = new QLineEdit(&dialog);
layout.addRow(nameListY[i] + " : ", lineEditY[i]);
}
lineEditY[0]->setText(QString::number(yBin));
lineEditY[1]->setText(QString::number(yMin));
lineEditY[2]->setText(QString::number(yMax));
QLabel * msg = new QLabel(&dialog);
msg->setStyleSheet("color:red;");
layout.addRow(msg);
QDialogButtonBox buttonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, Qt::Horizontal, &dialog);
layout.addRow(&buttonBox);
double number[3][2];
QObject::connect(&buttonBox, &QDialogButtonBox::accepted, [&]() {
int OKcount = 0;
bool conversionOk = true;
for( int i = 0; i < 3; i++ ){
number[i][0] = lineEditX[i]->text().toDouble(&conversionOk);
if( conversionOk ){
OKcount++;
}else{
msg->setText(nameListX[i] + " is invalid.");
return;
}
}
for( int i = 0; i < 3; i++ ){
number[i][1] = lineEditY[i]->text().toDouble(&conversionOk);
if( conversionOk ){
OKcount++;
}else{
msg->setText(nameListY[i] + " is invalid.");
return;
}
}
if( OKcount == 6 ) {
if( number[0][0] <= 0 ) {
msg->setText( nameListX[0] + " is zero or negative" );
return;
}
if( number[0][0] <= 0 ) {
msg->setText( nameListX[0] + " is zero or negative" );
return;
}
if( number[2][0] > number[1][0] && number[2][1] > number[1][1] ) {
dialog.accept();
}else{
if( number[2][0] > number[1][0] ){
msg->setText(nameListX[2] + " is smaller than " + nameListX[1]);
}
if( number[2][1] > number[1][1] ){
msg->setText(nameListY[2] + " is smaller than " + nameListY[1]);
}
}
}
});
QObject::connect(&buttonBox, &QDialogButtonBox::rejected, [&]() { dialog.reject();});
if( dialog.exec() == QDialog::Accepted ){
isBusy = true;
Rebin((int)number[0][0], number[1][0], number[2][0], (int)number[0][1], number[1][1], number[2][1]);
rescaleAxes();
UpdatePlot();
isBusy = false;
}
}
#endif
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