Jungfraujoch/viewer/charts/JFJochChartView.h

// SPDX-FileCopyrightText: 2025 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
// SPDX-License-Identifier: GPL-3.0-only

#ifndef JFJOCH_JFJOCHCHARTVIEW_H
#define JFJOCH_JFJOCHCHARTVIEW_H
#include <QtCharts/QChartView>
#include <QtCharts/QValueAxis>
#include <QtCharts/QLineSeries>
#include <QtCharts/QScatterSeries>
#include <QMouseEvent>
#include <QGraphicsLineItem>
#include <QTimer>

class JFJochChartView : public QChartView {
    Q_OBJECT

    QLineSeries *series = nullptr;
    QScatterSeries *currentSeries = nullptr;
    QGraphicsLineItem *m_hoverLine = nullptr;
    QTimer *m_hoverLoadTimer = nullptr;
    int64_t m_hoverPendingIdx = -1;

    std::vector<float> values;
    int64_t binning = 1;
    int64_t curr_image = 0;

    bool m_minYZeroEnabled = true;
    bool m_yOneOverD = false;

    void updateChart();

signals:
    void imageSelected(int64_t number);
    void writeStatusBar(QString string, int timeout_ms = 0);

private slots:
    void onHoverLoadTimeout();

private:
    void mousePressEvent(QMouseEvent *event) override;
    void mouseMoveEvent(QMouseEvent *event) override;
    void leaveEvent(QEvent *event) override;
    void contextMenuEvent(QContextMenuEvent *event) override;

public:
    explicit JFJochChartView(QWidget *parent = nullptr);
    void setImage(int64_t val);

public slots:
    void resetZoom();
    void setBinning(int64_t val);

public:
    template<class T>
    void loadValues(const std::vector<T> &input, int64_t image, bool one_over_d2) {
        m_yOneOverD = one_over_d2;

        values.resize(input.size());
        for (int i = 0; i < input.size(); i++) {
            if (one_over_d2) {

                float d = static_cast<float>(input[i]);
                if (!std::isfinite(d))
                    values[i] = 0.0f;
                else
                    values[i] = 1.0f / (d * d);
            } else
                values[i] = static_cast<float>(input[i]);
        }
        curr_image = image;
        updateChart();
    }
};


#endif //JFJOCH_JFJOCHCHARTVIEW_H