v1.0.0-rc.31

viewer/widgets/JFJochChartView.cpp

@@ -0,0 +1,75 @@
+// SPDX-FileCopyrightText: 2025 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
+// SPDX-License-Identifier: GPL-3.0-only
+
+
+#include "JFJochChartView.h"
+
+JFJochChartView::JFJochChartView(QWidget *parent)
+: QChartView(new QChart(), parent) {
+    chart()->legend()->hide();
+    setRenderHint(QPainter::Antialiasing);
+    setRubberBand(QChartView::RubberBand::RectangleRubberBand);
+}
+
+void JFJochChartView::setImage(int64_t val) {
+    if (!currentSeries)
+        return;
+
+    curr_image = val;
+
+    if (val < values.size() && val >= 0) {
+        currentSeries->clear();
+        currentSeries->append(curr_image, values[curr_image]);
+    }
+}
+
+void JFJochChartView::mousePressEvent(QMouseEvent *event) {
+    if (event->button() == Qt::LeftButton) {
+        QPointF clickedPoint = event->pos();
+        QPointF chartCoord = chart()->mapToValue(clickedPoint);
+        int64_t val = std::lround(chartCoord.x());
+        if (val >= 0 && val < values.size())
+            emit imageSelected(val);
+    }
+    QChartView::mousePressEvent(event); // Call the base implementation
+}
+
+void JFJochChartView::resetZoom() {
+    chart()->zoomReset();
+}
+
+void JFJochChartView::updateChart() {
+    chart()->removeAllSeries();
+    if (values.size() >= binning) {
+        // At least one full point
+
+        series = new QLineSeries(this);
+        currentSeries = new QScatterSeries(this);
+
+        if (binning == 1) {
+            for (int i = 0; i < values.size(); i++)
+                series->append(i, values[i]);
+        } else {
+            for (int i = 0; i < values.size() / binning; i++) {
+                float tmp = 0;
+                for (int b = 0; b < binning; b++)
+                    tmp += values[i * binning + b];
+                series->append((i + 0.5) * binning, tmp / binning);
+            }
+        }
+
+        if (curr_image < values.size() && curr_image >= 0)
+            currentSeries->append(curr_image, values[curr_image]);
+
+        chart()->addSeries(series);
+        chart()->addSeries(currentSeries);
+        chart()->createDefaultAxes();
+    }
+}
+
+void JFJochChartView::setBinning(int64_t val) {
+    if (val >= 1) {
+        binning = val;
+        updateChart();
+    }
+}