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cabana: show min and max values in chart tooltip (#27744)

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old-commit-hash: ced90c163e
This commit is contained in:
Willem Melching
2023-03-31 20:32:27 +02:00
committed by GitHub
parent d1147b4e6d
commit b308533897
2 changed files with 15 additions and 7 deletions
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tools/cabana/chartswidget.cc
+13 -7
View File
@@ -606,16 +606,20 @@ void ChartView::updateAxisY() {
auto first = std::lower_bound(s.vals.begin(), s.vals.end(), axis_x->min(), xLessThan);
auto last = std::lower_bound(first, s.vals.end(), axis_x->max(), xLessThan);
s.min = std::numeric_limits<double>::max();
s.max = std::numeric_limits<double>::lowest();
if (can->liveStreaming()) {
for (auto it = first; it != last; ++it) {
if (it->y() < min) min = it->y();
if (it->y() > max) max = it->y();
if (it->y() < s.min) s.min = it->y();
if (it->y() > s.max) s.max = it->y();
}
} else {
auto [min_y, max_y] = s.segment_tree.minmax(std::distance(s.vals.begin(), first), std::distance(s.vals.begin(), last));
min = std::min(min, min_y);
max = std::max(max, max_y);
s.min = min_y;
s.max = max_y;
}
min = std::min(min, s.min);
max = std::max(max, s.max);
}
if (min == std::numeric_limits<double>::max()) min = 0;
if (max == std::numeric_limits<double>::lowest()) max = 0;
@@ -764,16 +768,18 @@ void ChartView::mouseMoveEvent(QMouseEvent *ev) {
s.track_pt = chart()->mapToPosition(*it);
x = std::max(x, s.track_pt.x());
}
text_list.push_back(QString("<span style=\"color:%1;\">■ </span>%2: <b>%3</b>")
text_list.push_back(QString("<span style=\"color:%1;\">■ </span>%2: <b>%3</b> (%4 - %5)")
.arg(s.series->color().name(), s.sig->name,
s.track_pt.isNull() ? "--" : QString::number(value)));
s.track_pt.isNull() ? "--" : QString::number(value),
QString::number(s.min), QString::number(s.max)));
}
if (x < 0) {
x = ev->pos().x();
}
text_list.push_front(QString::number(chart()->mapToValue({x, 0}).x(), 'f', 3));
QPointF tooltip_pt(x + 12, plot_area.top() - 20);
QToolTip::showText(mapToGlobal(tooltip_pt.toPoint()), text_list.join("<br />"), this, plot_area.toRect());
QToolTip::showText(mapToGlobal(tooltip_pt.toPoint()), "<p style='white-space:pre'>" + text_list.join("<br />"), this, plot_area.toRect());
scene()->invalidate({}, QGraphicsScene::ForegroundLayer);
} else {
QToolTip::hideText();
tools/cabana/chartswidget.h
+2
View File
@@ -46,6 +46,8 @@ public:
uint64_t last_value_mono_time = 0;
QPointF track_pt{};
SegmentTree segment_tree;
double min = 0;
double max = 0;
};
signals: