2022-11-24 11:25:47 +01:00

375 lines
12 KiB
C++

// SPDX-License-Identifier: LGPL-3.0-or-other
// Copyright (C) 2021 Contributors to the SLS Detector Package
#include "SlsQt2DPlot.h"
#include "qDefs.h"
#include "qVersionResolve.h"
#include "sls/logger.h"
// Suppressing warning until qwt has a fix, avoid
// patching and should be backwards compatible
// https://doc.qt.io/qt-5/qflags-obsolete.html
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
#include <qlist.h>
#include <qtoolbutton.h>
#include <qwt_color_map.h>
#include <qwt_plot_layout.h>
#include <qwt_plot_panner.h>
#include <qwt_plot_spectrogram.h>
#include <qwt_plot_zoomer.h>
#include <qwt_scale_draw.h>
#include <qwt_scale_engine.h>
#include <qwt_scale_widget.h>
#pragma GCC diagnostic pop
#include <cmath>
#include <iostream>
namespace sls {
SlsQt2DPlot::SlsQt2DPlot(QWidget *parent, bool gain)
: QwtPlot(parent), gainPlot(gain) {
isLog = 0;
axisScaleEngine(QwtPlot::yLeft)->setAttribute(QwtScaleEngine::Floating);
axisScaleEngine(QwtPlot::xBottom)->setAttribute(QwtScaleEngine::Floating);
d_spectrogram = new QwtPlotSpectrogram();
hist = new SlsQt2DHist();
SetupZoom();
SetupColorMap();
d_spectrogram->setData(hist);
d_spectrogram->attach(this);
plotLayout()->setAlignCanvasToScales(true);
FillTestPlot();
setFont(qDefs::GetDefaultFont());
SetTitleFont(qDefs::GetDefaultFont());
SetXFont(qDefs::GetDefaultFont());
SetYFont(qDefs::GetDefaultFont());
SetZFont(qDefs::GetDefaultFont());
Update();
if (gainPlot) {
setTitle("Gain");
SetZTitle("");
enableAxis(QwtPlot::yLeft, false);
enableAxis(QwtPlot::xBottom, false);
DisableZoom(true);
// set only major ticks from 0 to 3
auto div = axisScaleEngine(QwtPlot::yRight)->divideScale(0, 3, 3, 0, 1);
setAxisScaleDiv(QwtPlot::yRight, div);
}
}
SlsQt2DPlot::~SlsQt2DPlot() = default;
void SlsQt2DPlot::SetTitle(QString title) { setTitle(title); }
void SlsQt2DPlot::SetXTitle(QString title) {
setAxisTitle(QwtPlot::xBottom, title);
}
void SlsQt2DPlot::SetYTitle(QString title) {
setAxisTitle(QwtPlot::yLeft, title);
}
void SlsQt2DPlot::SetZTitle(QString title) {
setAxisTitle(QwtPlot::yRight, title);
}
void SlsQt2DPlot::SetTitleFont(const QFont &f) {
QwtText t("");
t.setFont(f);
t.setRenderFlags(Qt::AlignLeft | Qt::AlignVCenter);
setTitle(t);
}
void SlsQt2DPlot::SetXFont(const QFont &f) {
QwtText t("");
t.setFont(f);
setAxisTitle(QwtPlot::xBottom, t);
}
void SlsQt2DPlot::SetYFont(const QFont &f) {
QwtText t("");
t.setFont(f);
setAxisTitle(QwtPlot::yLeft, t);
}
void SlsQt2DPlot::SetZFont(const QFont &f) {
QwtText t("");
t.setFont(f);
setAxisTitle(QwtPlot::yRight, t);
}
void SlsQt2DPlot::SetupColorMap() {
d_spectrogram->setColorMap(myColourMap(0));
for (double level = 0.5; level < 10.0; level += 1.0)
(contourLevelsLinear) += level;
d_spectrogram->setContourLevels(contourLevelsLinear);
for (double level = 0.5; level < 10.0; level += 1.0)
(contourLevelsLog) += (pow(10, 2 * level / 10.0) - 1) / 99.0 * 10;
// A color bar on the right axis
rightAxis = axisWidget(QwtPlot::yRight);
rightAxis->setTitle("Intensity");
rightAxis->setColorBarEnabled(true);
enableAxis(QwtPlot::yRight);
}
void SlsQt2DPlot::FillTestPlot(int mode) {
static int nx = 50;
static int ny = 50;
static double *the_data = nullptr;
if (the_data == nullptr)
the_data = new double[nx * ny];
double dmax = sqrt(pow(nx / 2.0 - 0.5, 2) + pow(ny / 2.0 - 0.5, 2));
for (int i = 0; i < nx; i++) {
for (int j = 0; j < ny; j++) {
double d = sqrt(pow(nx / 2.0 - (i + 0.5), 2) +
pow(ny / 2.0 - (j + 0.5), 2));
if (mode % 3)
the_data[i + j * nx] = 10 * d / dmax;
else
the_data[i + j * nx] = 10 * (1 - d / dmax);
}
}
hist->SetData(nx, 200, 822, ny, -0.5, ny - 0.5, the_data);
}
void SlsQt2DPlot::SetupZoom() {
// LeftButton for the zooming
// MiddleButton for the panning
// RightButton: zoom out by 1
// Ctrl+RighButton: zoom out to full size
zoomer = new SlsQt2DZoomer(canvas());
zoomer->SetHist(hist);
zoomer->setMousePattern(QwtEventPattern::MouseSelect2, Qt::RightButton,
Qt::ControlModifier);
zoomer->setMousePattern(QwtEventPattern::MouseSelect3, Qt::RightButton);
panner = new QwtPlotPanner(canvas());
panner->setAxisEnabled(QwtPlot::yRight, false);
panner->setMouseButton(Qt::MiddleButton);
// Avoid jumping when labels with more/less digits
// appear/disappear when scrolling vertically
const QFontMetrics fm(axisWidget(QwtPlot::yLeft)->font());
QwtScaleDraw *sd = axisScaleDraw(QwtPlot::yLeft);
sd->setMinimumExtent(qResolve_GetQFontWidth(fm, "100.00"));
const QColor c(Qt::darkBlue);
zoomer->setRubberBandPen(c);
zoomer->setTrackerPen(c);
connect(zoomer, SIGNAL(zoomed(const QRectF &)), this,
SIGNAL(PlotZoomedSignal(const QRectF &)));
connect(panner, SIGNAL(panned(int, int)), this,
SLOT(GetPannedCoord(int, int)));
}
void SlsQt2DPlot::UnZoom(bool replot) {
zoomer->setZoomBase(QRectF(hist->GetXMin(), hist->GetYMin(),
hist->GetXMax() - hist->GetXMin(),
hist->GetYMax() - hist->GetYMin()));
zoomer->setZoomBase(replot); // Call replot for the attached plot before
// initializing the zoomer with its scales.
// zoomer->zoom(0);
}
void SlsQt2DPlot::GetPannedCoord(int, int) {
double xmin = invTransform(QwtPlot::xBottom, 0);
double xmax = invTransform(QwtPlot::xBottom, canvas()->rect().width());
double ymax = invTransform(QwtPlot::yLeft, 0);
double ymin = invTransform(QwtPlot::yLeft, canvas()->rect().height());
LOG(logDEBUG1) << "Rect1 " << xmin << "\t" << xmax << "\t" << ymin << "\t"
<< ymax;
QPointF topLeft = QPointF(xmin, ymin);
QPointF bottomRight = QPointF(xmax, ymax);
const QRectF rectf = QRectF(topLeft, bottomRight);
rectf.getCoords(&xmin, &ymin, &xmax, &ymax);
LOG(logDEBUG1) << "RectF " << xmin << "\t" << xmax << "\t" << ymin << "\t"
<< ymax;
emit PlotZoomedSignal(rectf);
}
void SlsQt2DPlot::SetZoom(const QRectF &rect) {
double xmin = 0, xmax = 0, ymin = 0, ymax = 0;
rect.getCoords(&xmin, &ymin, &xmax, &ymax);
LOG(logDEBUG1) << "Plot zooming in to " << xmin << " " << xmax << " "
<< ymin << " " << ymax;
SetXMinMax(xmin, xmax);
SetYMinMax(ymin, ymax);
replot();
}
void SlsQt2DPlot::SetZoom(double xmin, double ymin, double x_width,
double y_width) {
zoomer->setZoomBase(QRectF(xmin, ymin, x_width, y_width));
}
void SlsQt2DPlot::DisableZoom(bool disable) {
if (disableZoom != disable) {
disableZoom = disable;
#ifdef VERBOSE
if (disable)
std::cout << "Disabling zoom\n";
else
std::cout << "Enabling zoom\n";
#endif
if (disable) {
if (zoomer) {
zoomer->setMousePattern(QwtEventPattern::MouseSelect1,
Qt::NoButton);
zoomer->setMousePattern(QwtEventPattern::MouseSelect2,
Qt::NoButton, Qt::ControlModifier);
zoomer->setMousePattern(QwtEventPattern::MouseSelect3,
Qt::NoButton);
}
if (panner)
panner->setMouseButton(Qt::NoButton);
} else {
if (zoomer) {
zoomer->setMousePattern(QwtEventPattern::MouseSelect1,
Qt::LeftButton);
zoomer->setMousePattern(QwtEventPattern::MouseSelect2,
Qt::RightButton, Qt::ControlModifier);
zoomer->setMousePattern(QwtEventPattern::MouseSelect3,
Qt::RightButton);
}
if (panner)
panner->setMouseButton(Qt::MiddleButton);
}
}
}
void SlsQt2DPlot::SetZMinMax(double zmin, double zmax) {
hist->SetMinMax(zmin, zmax);
}
QwtLinearColorMap *SlsQt2DPlot::myColourMap(QVector<double> colourStops) {
int ns = 5;
double r[] = {0.00, 0.00, 0.87, 1.00, 0.51};
double g[] = {0.00, 0.81, 1.00, 0.20, 0.00};
double b[] = {0.51, 1.00, 0.12, 0.00, 0.00};
// QColor c1, c2, c;
QColor c2, c;
c2.setRgbF(r[ns - 1], g[ns - 1], b[ns - 1]);
QwtLinearColorMap *copyMap = new QwtLinearColorMap(Qt::lightGray, c2);
for (int is = 0; is < ns - 1; is++) {
c.setRgbF(r[is], g[is], b[is]);
copyMap->addColorStop(colourStops[is], c);
}
return copyMap;
}
QwtLinearColorMap *SlsQt2DPlot::myColourMap(int log) {
QVector<double> cs{0.0, 0.34, 0.61, 0.84, 1.0};
if (log) {
for (int i = 0; i < cs.size(); ++i)
cs[i] = (pow(10, 2 * cs[i]) - 1) / 99.0;
}
return myColourMap(cs);
}
void SlsQt2DPlot::Update() {
if (isLog)
hist->SetMinimumToFirstGreaterThanZero();
const QwtInterval zInterval = d_spectrogram->data()->interval(Qt::ZAxis);
rightAxis->setColorMap(zInterval, myColourMap(isLog));
if (!zoomer->zoomRectIndex())
UnZoom();
if (!gainPlot) {
setAxisScale(QwtPlot::yRight, zInterval.minValue(),
zInterval.maxValue());
}
plotLayout()->setAlignCanvasToScales(true);
replot();
}
void SlsQt2DPlot::SetInterpolate(bool enable) {
hist->Interpolate(enable);
Update();
}
void SlsQt2DPlot::SetContour(bool enable) {
d_spectrogram->setDisplayMode(QwtPlotSpectrogram::ContourMode, enable);
Update();
}
void SlsQt2DPlot::SetLogz(bool enable, bool isMin, bool isMax, double min,
double max) {
LogZ(enable);
SetZRange(isMin, isMax, min, max);
}
void SlsQt2DPlot::SetZRange(bool isMin, bool isMax, double min, double max) {
if (isLog) {
SetZMinimumToFirstGreaterThanZero();
}
// set zmin and zmax
if (isMin || isMax) {
double zmin = (isMin ? min : GetZMinimum());
double zmax = (isMax ? max : GetZMaximum());
SetZMinMax(zmin, zmax);
}
Update();
}
void SlsQt2DPlot::LogZ(bool on) {
if (on) {
isLog = 1;
d_spectrogram->setColorMap(myColourMap(isLog));
setAxisScaleEngine(QwtPlot::yRight, new QwtLogScaleEngine);
d_spectrogram->setContourLevels(contourLevelsLog);
} else {
isLog = 0;
d_spectrogram->setColorMap(myColourMap(isLog));
setAxisScaleEngine(QwtPlot::yRight, new QwtLinearScaleEngine);
d_spectrogram->setContourLevels(contourLevelsLinear);
}
Update();
}
void SlsQt2DPlot::showSpectrogram(bool on) {
d_spectrogram->setDisplayMode(QwtPlotSpectrogram::ImageMode, on);
d_spectrogram->setDefaultContourPen(on ? QPen() : QPen(Qt::NoPen));
Update();
}
void SlsQt2DPlot::EnableRoiBox(std::array<int, 4> roi) {
if (roiBox == nullptr) {
roiBox = new QwtPlotShapeItem();
}
roiBox->setPen(QColor(Qt::yellow), 2.0, Qt::SolidLine);
// TopLeft - BottomRight (max points are +1 on graph)
QRect myRect(QPoint(roi[0], roi[2]), QPoint(roi[1] - 1, roi[3] - 1));
roiBox->setRect(QRectF(myRect));
roiBox->attach(this);
replot();
}
void SlsQt2DPlot::DisableRoiBox() {
if (roiBox != nullptr) {
roiBox->detach();
replot();
}
}
} // namespace sls