#include <algorithm>
#include <cassert>
-#include <QDebug>
+#include <QColor>
#include <QToolTip>
#include "cursorpair.hpp"
+#include "pv/globalsettings.hpp"
#include "pv/util.hpp"
#include "ruler.hpp"
#include "view.hpp"
namespace trace {
const int CursorPair::DeltaPadding = 8;
-const QColor CursorPair::ViewportFillColor(220, 231, 243);
CursorPair::CursorPair(View &view) :
TimeItem(view),
first_(new Cursor(view, 0.0)),
second_(new Cursor(view, 1.0))
{
+ GlobalSettings::add_change_handler(this);
+
+ GlobalSettings settings;
+ fill_color_ = QColor::fromRgba(settings.value(
+ GlobalSettings::Key_View_CursorFillColor).value<uint32_t>());
+
connect(&view_, SIGNAL(hover_point_changed(const QWidget*, QPoint)),
this, SLOT(on_hover_point_changed(const QWidget*, QPoint)));
}
+CursorPair::~CursorPair()
+{
+ GlobalSettings::remove_change_handler(this);
+}
+
bool CursorPair::enabled() const
{
return view_.cursors_shown();
second_->set_time(time + delta);
}
+const pv::util::Timestamp CursorPair::time() const
+{
+ return (first_->time() + second_->time()) / 2.0f;
+}
+
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);
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);
return;
p.setPen(Qt::NoPen);
- p.setBrush(QBrush(ViewportFillColor));
+ p.setBrush(fill_color_);
const pair<float, float> offsets(get_cursor_offsets());
const int l = (int)max(min(offsets.first, offsets.second), 0.0f);
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);
+
+ // Try full "{time} s / {freq} Hz" format
+ if ((max_width <= 0) || (query_size(s) <= max_width)) {
+ label_incomplete_ = false;
+ return s;
+ }
+
+ 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;
+ }
- 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);
+ // Gradually reduce both precisions down to zero
+ while (time_precision > 0) {
+ time_precision--;
+ freq_precision--;
- return QString("%1 / %2").arg(s1, s2);
+ 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
return pair<float, float>(first_->get_x(), second_->get_x());
}
+void CursorPair::on_setting_changed(const QString &key, const QVariant &value)
+{
+ if (key == GlobalSettings::Key_View_CursorFillColor)
+ fill_color_ = QColor::fromRgba(value.value<uint32_t>());
+}
+
void CursorPair::on_hover_point_changed(const QWidget* widget, const QPoint& hp)
{
if (widget != view_.ruler())
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)
+{
+ 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) {
+ const QString freq = util::format_value_si(
+ 1 / diff.convert_to<double>(), pv::util::SIPrefix::unspecified,
+ freq_precision, (show_unit ? "Hz" : nullptr), false);
+
+ return QString("%1 / %2").arg(time, freq);
+ } else
+ // In this case, we return the number of samples, really
+ return time;
+}
+
} // namespace trace
} // namespace views
} // namespace pv
projects / pulseview.git / blobdiff