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Cabana: display dashes if no value available (#26557)

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show dot if no value
This commit is contained in:
Dean Lee
2022-11-22 02:48:19 +08:00
committed by GitHub
parent 7b46928fc9
commit efbfbc0622
1 changed files with 23 additions and 22 deletions
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tools/cabana/chartswidget.cc
+23 -22
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@@ -420,34 +420,35 @@ void ChartView::mouseMoveEvent(QMouseEvent *ev) {
const auto plot_area = chart()->plotArea();
if (!is_zooming && plot_area.contains(ev->pos())) {
double sec = chart()->mapToValue(ev->pos()).x();
QStringList text_list;
QPointF pos = plot_area.bottomRight();
double tm = 0.0;
QPointF pos = {};
const double sec = chart()->mapToValue(ev->pos()).x();
for (auto &s : sigs) {
auto value = std::upper_bound(s.vals.begin(), s.vals.end(), sec, [](double x, auto &p) { return x < p.x(); });
if (value != s.vals.end()) {
text_list.push_back(QString("&nbsp;%1 : %2&nbsp;").arg(sigs.size() > 1 ? s.sig->name.c_str() : "Value").arg(value->y()));
tm = value->x();
auto y_pos = chart()->mapToPosition(*value);
if (y_pos.y() < pos.y()) pos = y_pos;
QString value = "--";
// use reverse iterator to find last item <= sec.
auto it = std::lower_bound(s.vals.rbegin(), s.vals.rend(), sec, [](auto &p, double x) { return p.x() > x; });
if (it != s.vals.rend() && it->x() >= axis_x->min()) {
value = QString::number(it->y());
auto value_pos = chart()->mapToPosition(*it);
if (value_pos.x() > pos.x()) pos = value_pos;
}
text_list.push_back(QString("&nbsp;%1 : %2&nbsp;").arg(sigs.size() > 1 ? s.sig->name.c_str() : "Value").arg(value));
}
if (pos.x() == 0) pos = ev->pos();
if (!text_list.isEmpty()) {
value_text->setHtml("<div style=\"background-color: darkGray;color: white;\">&nbsp;Time: " +
QString::number(tm, 'f', 3) + "&nbsp;<br />" + text_list.join("<br />") + "</div>");
track_line->setLine(pos.x(), plot_area.top(), pos.x(), plot_area.bottom());
int text_x = pos.x() + 8;
QRectF text_rect = value_text->boundingRect();
if ((text_x + text_rect.width()) > plot_area.right()) {
text_x = pos.x() - text_rect.width() - 8;
}
value_text->setPos(text_x, pos.y() - text_rect.height() / 2);
track_ellipse->setRect(pos.x() - 5, pos.y() - 5, 10, 10);
QString time = QString::number(chart()->mapToValue(pos).x(), 'f', 3);
value_text->setHtml(QString("<div style=\"background-color: darkGray;color: white;\">&nbsp;Time: %1 &nbsp;<br />%2</div>")
.arg(time).arg(text_list.join("<br />")));
QRectF text_rect = value_text->boundingRect();
int text_x = pos.x() + 8;
if ((text_x + text_rect.width()) > plot_area.right()) {
text_x = pos.x() - text_rect.width() - 8;
}
item_group->setVisible(!text_list.isEmpty());
value_text->setPos(text_x, pos.y() - text_rect.height() / 2);
track_line->setLine(pos.x(), plot_area.top(), pos.x(), plot_area.bottom());
track_ellipse->setRect(pos.x() - 5, pos.y() - 5, 10, 10);
item_group->setVisible(true);
} else {
item_group->setVisible(false);
}