Method buildChartsSection

app/src/Sessions/HtmlReport.cpp:555–596

* @brief Builds one Chart.js canvas per numeric series, wrapped in cards. */

 * @brief Builds one Chart.js canvas per numeric series, wrapped in cards.
 */
QString Sessions::HtmlReport::buildChartsSection() const
{
  QString cards;
  for (const auto& s : m_series) {
    QString fullName =
      s.group.isEmpty() ? s.title : QStringLiteral("%1 / %2").arg(s.group, s.title);
    if (!s.sourceTitle.isEmpty())
      fullName = QStringLiteral("%1 / %2").arg(s.sourceTitle, fullName);

    const QString units =
      s.units.isEmpty() ? QString() : QStringLiteral(" (%1)").arg(escapeHtml(s.units));

    const double duration = s.timesSec.empty() ? 0.0 : s.timesSec.back();
    const QString sub     = tr("%1 samples over %2 seconds")
                          .arg(QString::number(static_cast<qulonglong>(s.totalSamples)),
                               QString::number(duration, 'f', 2));

    cards += QStringLiteral("<div class=\"chart-card\">"
                            "<h3>%1%2</h3>"
                            "<div class=\"chart-sub\">%3</div>"
                            "<div class=\"chart-box\"><canvas id=\"chart-%4\"></canvas></div>"
                            "</div>")
               .arg(escapeHtml(fullName), units, escapeHtml(sub), QString::number(s.uniqueId));
  }

  const QString overlay =
    m_series.size() >= 2
      ? QStringLiteral("<section class=\"section screen-only overlay-section\">"
                       "<h2>%1 <span class=\"muted\">%2</span></h2>"
                       "<div class=\"overlay-box\"><canvas id=\"chart-overlay\"></canvas></div>"
                       "</section>")
          .arg(escapeHtml(tr("Combined Parameter View")),
               escapeHtml(tr("click legend items to toggle signals")))
      : QString();

  return QStringLiteral("%1"
                        "<section class=\"section new-page\">"
                        "<h2 id=\"parameter-trends-heading\">%2</h2>"
                        "<div class=\"charts-grid\">%3</div>"
                        "</section>")
    .arg(overlay, escapeHtml(tr("Parameter Trends")), cards);
}

//--------------------------------------------------------------------------------------------------
// JSON payload (consumed by session-report.js)