X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fcursorpair.cpp;h=f9d3e53ddd3fec6bae38fc39dfdaa3d257ef87f8;hp=7fe90c7b6ef11ccb12d3a91d8a3bb05c53334ee9;hb=4cffac16f3fb0ced3450c7df9c02b2d35bcd01e1;hpb=b42d25c43e52c900cbdd3e5cde0282961b8721e7

diff --git a/pv/view/cursorpair.cpp b/pv/view/cursorpair.cpp
index 7fe90c7b..f9d3e53d 100644
--- a/pv/view/cursorpair.cpp
+++ b/pv/view/cursorpair.cpp
@@ -18,38 +18,178 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
-#include "cursorpair.h"
+#include "cursorpair.hpp"
 
-#include "view.h"
+#include "ruler.hpp"
+#include "view.hpp"
+#include "pv/util.hpp"
+
+#include <cassert>
+#include <algorithm>
+
+using std::max;
+using std::make_pair;
+using std::min;
+using std::shared_ptr;
+using std::pair;
 
 namespace pv {
 namespace view {
 
-CursorPair::CursorPair(const View &view) :
-	_first(view, 0.0),
-	_second(view, 1.0),
-	_view(view)
+const int CursorPair::DeltaPadding = 8;
+const QColor CursorPair::ViewportFillColour(220, 231, 243);
+
+CursorPair::CursorPair(View &view) :
+	TimeItem(view),
+	first_(new Cursor(view, 0.0)),
+	second_(new Cursor(view, 1.0))
+{
+}
+
+bool CursorPair::enabled() const
+{
+	return view_.cursors_shown();
+}
+
+shared_ptr<Cursor> CursorPair::first() const
+{
+	return first_;
+}
+
+shared_ptr<Cursor> CursorPair::second() const
 {
+	return second_;
 }
 
-const Cursor& CursorPair::first() const
+void CursorPair::set_time(const pv::util::Timestamp& time)
 {
-	return _first;
+	const pv::util::Timestamp delta = second_->time() - first_->time();
+	first_->set_time(time);
+	second_->set_time(time + delta);
 }
 
-Cursor& CursorPair::first()
+float CursorPair::get_x() const
 {
-	return _first;
+	return (first_->get_x() + second_->get_x()) / 2.0f;
 }
 
-const Cursor& CursorPair::second() const
+QPoint CursorPair::point(const QRect &rect) const
 {
-	return _second;
+	return first_->point(rect);
 }
 
-Cursor& CursorPair::second()
+pv::widgets::Popup* CursorPair::create_popup(QWidget *parent)
 {
-	return _second;
+	(void)parent;
+	return nullptr;
+}
+
+QRectF CursorPair::label_rect(const QRectF &rect) const
+{
+	const QSizeF label_size(text_size_ + LabelPadding * 2);
+	const pair<float, float> offsets(get_cursor_offsets());
+	const pair<float, float> normal_offsets(
+		(offsets.first < offsets.second) ? offsets :
+		make_pair(offsets.second, offsets.first));
+
+	const float height = label_size.height();
+	const float left = max(normal_offsets.first + DeltaPadding, -height);
+	const float right = min(normal_offsets.second - DeltaPadding,
+		(float)rect.width() + height);
+
+	return QRectF(left, rect.height() - label_size.height() -
+		TimeMarker::ArrowSize - 0.5f,
+		right - left, height);
+}
+
+void CursorPair::paint_label(QPainter &p, const QRect &rect, bool hover)
+{
+	assert(first_);
+	assert(second_);
+
+	if (!enabled())
+		return;
+
+	const QColor text_colour =
+		ViewItem::select_text_colour(Cursor::FillColour);
+
+	p.setPen(text_colour);
+	compute_text_size(p);
+	QRectF delta_rect(label_rect(rect));
+
+	const int radius = delta_rect.height() / 2;
+	const QRectF text_rect(delta_rect.intersected(
+		rect).adjusted(radius, 0, -radius, 0));
+	if (text_rect.width() >= text_size_.width()) {
+		const int highlight_radius = delta_rect.height() / 2 - 2;
+
+		if (selected()) {
+			p.setBrush(Qt::transparent);
+			p.setPen(highlight_pen());
+			p.drawRoundedRect(delta_rect, radius, radius);
+		}
+
+		p.setBrush(hover ? Cursor::FillColour.lighter() :
+			Cursor::FillColour);
+		p.setPen(Cursor::FillColour.darker());
+		p.drawRoundedRect(delta_rect, radius, radius);
+
+		delta_rect.adjust(1, 1, -1, -1);
+		p.setPen(Cursor::FillColour.lighter());
+		p.drawRoundedRect(delta_rect, highlight_radius, highlight_radius);
+
+		p.setPen(text_colour);
+		p.drawText(text_rect, Qt::AlignCenter | Qt::AlignVCenter,
+			format_string());
+	}
+}
+
+void CursorPair::paint_back(QPainter &p, const ViewItemPaintParams &pp)
+{
+	if (!enabled())
+		return;
+
+	p.setPen(Qt::NoPen);
+	p.setBrush(QBrush(ViewportFillColour));
+
+	const pair<float, float> offsets(get_cursor_offsets());
+	const int l = (int)max(min(
+		offsets.first, offsets.second), 0.0f);
+	const int r = (int)min(max(
+		offsets.first, offsets.second), (float)pp.width());
+
+	p.drawRect(l, pp.top(), r - l, pp.height());
+}
+
+QString CursorPair::format_string()
+{
+	const pv::util::SIPrefix prefix = view_.tick_prefix();
+	const pv::util::Timestamp diff = abs(second_->time() - first_->time());
+
+	const QString s1 = Ruler::format_time_with_distance(
+		diff, diff, prefix, view_.time_unit(), view_.tick_precision(), false);
+	const QString s2 = util::format_time_si(
+		1 / diff, pv::util::SIPrefix::unspecified, 4, "Hz", false);
+
+	return QString("%1 / %2").arg(s1).arg(s2);
+}
+
+void CursorPair::compute_text_size(QPainter &p)
+{
+	assert(first_);
+	assert(second_);
+
+	text_size_ = p.boundingRect(QRectF(), 0, format_string()).size();
+}
+
+pair<float, float> CursorPair::get_cursor_offsets() const
+{
+	assert(first_);
+	assert(second_);
+
+	return pair<float, float>(
+		((first_->time() - view_.offset()) / view_.scale()).convert_to<float>(),
+		((second_->time() - view_.offset()) / view_.scale()).convert_to<float>());
 }
 
 } // namespace view