#include <cassert>
#include <QColor>
+#include <QMenu>
#include <QToolTip>
#include "cursorpair.hpp"
CursorPair::CursorPair(View &view) :
TimeItem(view),
first_(new Cursor(view, 0.0)),
- second_(new Cursor(view, 1.0))
+ second_(new Cursor(view, 1.0)),
+ label_incomplete_(true)
{
GlobalSettings::add_change_handler(this);
GlobalSettings settings;
fill_color_ = QColor::fromRgba(settings.value(
GlobalSettings::Key_View_CursorFillColor).value<uint32_t>());
+ show_frequency_ = settings.value(
+ GlobalSettings::Key_View_CursorShowFrequency).value<bool>();
+ show_interval_ = settings.value(
+ GlobalSettings::Key_View_CursorShowInterval).value<bool>();
connect(&view_, SIGNAL(hover_point_changed(const QWidget*, QPoint)),
this, SLOT(on_hover_point_changed(const QWidget*, QPoint)));
second_->set_time(time + delta);
}
+const pv::util::Timestamp CursorPair::time() const
+{
+ return 0;
+}
+
float CursorPair::get_x() const
{
return (first_->get_x() + second_->get_x()) / 2.0f;
}
+const pv::util::Timestamp CursorPair::delta(const pv::util::Timestamp& other) const
+{
+ if (other < second_->time())
+ return other - first_->time();
+ else
+ return other - second_->time();
+}
+
QPoint CursorPair::drag_point(const QRect &rect) const
{
return first_->drag_point(rect);
return nullptr;
}
+QMenu *CursorPair::create_header_context_menu(QWidget *parent)
+{
+ QMenu *menu = new QMenu(parent);
+
+ QAction *displayIntervalAction = new QAction(tr("Display interval"));
+ displayIntervalAction->setCheckable(true);
+ displayIntervalAction->setChecked(show_interval_);
+ menu->addAction(displayIntervalAction);
+
+ connect(displayIntervalAction, &QAction::toggled, [=]{
+ GlobalSettings settings;
+ settings.setValue(GlobalSettings::Key_View_CursorShowInterval,
+ !settings.value(GlobalSettings::Key_View_CursorShowInterval).value<bool>());
+ });
+
+ QAction *displayFrequencyAction = new QAction(tr("Display frequency"));
+ displayFrequencyAction->setCheckable(true);
+ displayFrequencyAction->setChecked(show_frequency_);
+ menu->addAction(displayFrequencyAction);
+
+ connect(displayFrequencyAction, &QAction::toggled, [=]{
+ GlobalSettings settings;
+ settings.setValue(GlobalSettings::Key_View_CursorShowFrequency,
+ !settings.value(GlobalSettings::Key_View_CursorShowFrequency).value<bool>());
+ });
+
+ return menu;
+}
+
QRectF CursorPair::label_rect(const QRectF &rect) const
{
const QSizeF label_size(text_size_ + LabelPadding * 2);
const QColor text_color = ViewItem::select_text_color(Cursor::FillColor);
p.setPen(text_color);
- QString text = format_string();
- text_size_ = p.boundingRect(QRectF(), 0, text).size();
-
QRectF delta_rect(label_rect(rect));
const int radius = delta_rect.height() / 2;
QRectF text_rect(delta_rect.intersected(rect).adjusted(radius, 0, -radius, 0));
- if (text_rect.width() < text_size_.width()) {
- text = "...";
- text_size_ = p.boundingRect(QRectF(), 0, text).size();
- label_incomplete_ = true;
- } else
- label_incomplete_ = false;
+ QString text = format_string(text_rect.width(),
+ [&p](const QString& s) -> double { return p.boundingRect(QRectF(), 0, s).width(); });
+
+ text_size_ = p.boundingRect(QRectF(), 0, text).size();
if (selected()) {
p.setBrush(Qt::transparent);
p.drawRect(l, pp.top(), r - l, pp.height());
}
-QString CursorPair::format_string()
+QString CursorPair::format_string(int max_width, std::function<double(const QString&)> query_size)
{
- const pv::util::SIPrefix prefix = view_.tick_prefix();
- const pv::util::Timestamp diff = abs(second_->time() - first_->time());
+ int time_precision = 12;
+ int freq_precision = 12;
+
+ QString s = format_string_sub(time_precision, freq_precision);
- const QString s1 = Ruler::format_time_with_distance(
- diff, diff, prefix, view_.time_unit(), 12, false); /* Always use 12 precision digits */
- const QString s2 = util::format_time_si(
- 1 / diff, pv::util::SIPrefix::unspecified, 4, "Hz", false);
+ // Try full "{time} s / {freq} Hz" format
+ if ((max_width <= 0) || (query_size(s) <= max_width)) {
+ label_incomplete_ = false;
+ return s;
+ }
- return QString("%1 / %2").arg(s1, s2);
+ label_incomplete_ = true;
+
+ // Gradually reduce time precision to match frequency precision
+ while (time_precision > freq_precision) {
+ time_precision--;
+
+ s = format_string_sub(time_precision, freq_precision);
+ if (query_size(s) <= max_width)
+ return s;
+ }
+
+ // Gradually reduce both precisions down to zero
+ while (time_precision > 0) {
+ time_precision--;
+ freq_precision--;
+
+ s = format_string_sub(time_precision, freq_precision);
+ if (query_size(s) <= max_width)
+ return s;
+ }
+
+ // Try no trailing digits and drop the unit to at least display something
+ s = format_string_sub(0, 0, false);
+
+ if (query_size(s) <= max_width)
+ return s;
+
+ // Give up
+ return "...";
}
pair<float, float> CursorPair::get_cursor_offsets() const
{
if (key == GlobalSettings::Key_View_CursorFillColor)
fill_color_ = QColor::fromRgba(value.value<uint32_t>());
+
+ if (key == GlobalSettings::Key_View_CursorShowFrequency)
+ show_frequency_ = value.value<bool>();
+
+ if (key == GlobalSettings::Key_View_CursorShowInterval)
+ show_interval_ = value.value<bool>();
}
void CursorPair::on_hover_point_changed(const QWidget* widget, const QPoint& hp)
QToolTip::hideText(); // TODO Will break other tooltips when there can be others
}
+QString CursorPair::format_string_sub(int time_precision, int freq_precision, bool show_unit)
+{
+ QString s = " ";
+
+ const pv::util::SIPrefix prefix = view_.tick_prefix();
+ const pv::util::Timestamp diff = abs(second_->time() - first_->time());
+
+ const QString time = Ruler::format_time_with_distance(
+ diff, diff, prefix, (show_unit ? view_.time_unit() : pv::util::TimeUnit::None),
+ time_precision, false);
+
+ // We can only show a frequency when there's a time base
+ if (view_.time_unit() == pv::util::TimeUnit::Time) {
+ int items = 0;
+
+ if (show_frequency_) {
+ const QString freq = util::format_value_si(
+ 1 / diff.convert_to<double>(), pv::util::SIPrefix::unspecified,
+ freq_precision, (show_unit ? "Hz" : nullptr), false);
+ s = QString("%1").arg(freq);
+ items++;
+ }
+
+ if (show_interval_) {
+ if (items > 0)
+ s = QString("%1 / %2").arg(s, time);
+ else
+ s = QString("%1").arg(time);
+ items++;
+ }
+ } else
+ // In this case, we return the number of samples, really
+ s = time;
+
+ return s;
+}
+
} // namespace trace
} // namespace views
} // namespace pv
projects / pulseview.git / blobdiff