X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fcursor.cpp;h=1b30518e04024225586f8e7dbfcc073a57891989;hp=b854f2c4995be4a3f93a205f0b2c43c67bcbc534;hb=b6b267bba9d55d23fe5c3537e4785238d4377ad7;hpb=ca4ec3eab886e62c0f9d0cc91636383a74ad5d7b

diff --git a/pv/view/cursor.cpp b/pv/view/cursor.cpp
index b854f2c4..1b30518e 100644
--- a/pv/view/cursor.cpp
+++ b/pv/view/cursor.cpp
@@ -20,13 +20,21 @@
 
 #include "cursor.h"
 
+#include "ruler.h"
 #include "view.h"
 
 #include <QBrush>
 #include <QPainter>
+#include <QPointF>
 #include <QRect>
 #include <QRectF>
 
+#include <stdio.h>
+
+#include <extdef.h>
+
+using namespace boost;
+
 namespace pv {
 namespace view {
 
@@ -35,32 +43,116 @@ const QColor Cursor::FillColour(52, 101, 164);
 const QColor Cursor::HighlightColour(83, 130, 186);
 const QColor Cursor::TextColour(Qt::white);
 
-const int Cursor::Size = 12;
 const int Cursor::Offset = 1;
 
-Cursor::Cursor(const View &view, double time) :
+const int Cursor::ArrowSize = 4;
+
+Cursor::Cursor(View &view, double time) :
 	TimeMarker(view, LineColour, time)
 {
 }
 
 QRectF Cursor::get_label_rect(const QRect &rect) const
 {
+	const shared_ptr<Cursor> other(get_other_cursor());
+	assert(other);
+
 	const float x = (_time - _view.offset()) / _view.scale();
-	return QRectF(x - Size/2, rect.height() - Size - Offset,
-		Size, Size);
+
+	const QSizeF label_size(
+		_text_size.width() + View::LabelPadding.width() * 2,
+		_text_size.height() + View::LabelPadding.height() * 2);
+	const float top = rect.height() - label_size.height() -
+		Cursor::Offset - Cursor::ArrowSize - 0.5f;
+	const float height = label_size.height();
+
+	if (_time > other->time())
+		return QRectF(x, top, label_size.width(), height);
+	else
+		return QRectF(x - label_size.width(), top,
+			label_size.width(), height);
 }
 
-void Cursor::paint_label(QPainter &p, const QRect &rect)
+void Cursor::paint_label(QPainter &p, const QRect &rect,
+	unsigned int prefix)
 {
+	const shared_ptr<Cursor> other(get_other_cursor());
+	assert(other);
+
+	compute_text_size(p, prefix);
 	const QRectF r(get_label_rect(rect));
 
-	p.setPen(LineColour);
-	p.setBrush(QBrush(FillColour));
-	p.drawEllipse(r);
+	const QPointF left_points[] = {
+		r.topLeft(),
+		r.topRight(),
+		r.bottomRight(),
+		QPointF(r.left() + ArrowSize, r.bottom()),
+		QPointF(r.left(), rect.bottom()),
+	};
+
+	const QPointF right_points[] = {
+		r.topRight(),
+		r.topLeft(),
+		r.bottomLeft(),
+		QPointF(r.right() - ArrowSize, r.bottom()),
+		QPointF(r.right(), rect.bottom()),
+	};
+
+	const QPointF left_highlight_points[] = {
+		QPointF(r.left() + 1, r.top() + 1),
+		QPointF(r.right() - 1, r.top() + 1),
+		QPointF(r.right() - 1, r.bottom() - 1),
+		QPointF(r.left() + ArrowSize - 1, r.bottom() - 1),
+		QPointF(r.left() + 1, rect.bottom() - 1),
+	};
+
+	const QPointF right_highlight_points[] = {
+		QPointF(r.right() - 1, r.top() + 1),
+		QPointF(r.left() + 1, r.top() + 1),
+		QPointF(r.left() + 1, r.bottom() - 1),
+		QPointF(r.right() - ArrowSize + 1, r.bottom() - 1),
+		QPointF(r.right() - 1, rect.bottom() - 1),
+	};
+
+	const QPointF *const points = (_time > other->time()) ?
+		left_points : right_points;
+	const QPointF *const highlight_points = (_time > other->time()) ?
+		left_highlight_points : right_highlight_points;
+
+	if (selected()) {
+		p.setPen(highlight_pen());
+		p.setBrush(Qt::transparent);
+		p.drawPolygon(points, countof(left_points));
+	}
+
+	p.setPen(Qt::transparent);
+	p.setBrush(FillColour);
+	p.drawPolygon(points, countof(left_points));
 
 	p.setPen(HighlightColour);
-	p.setBrush(QBrush());
-	p.drawEllipse(r.adjusted(1, 1, -1, -1));
+	p.setBrush(Qt::transparent);
+	p.drawPolygon(highlight_points, countof(left_highlight_points));
+
+	p.setPen(LineColour);
+	p.setBrush(Qt::transparent);
+	p.drawPolygon(points, countof(left_points));
+
+	p.setPen(TextColour);
+	p.drawText(r, Qt::AlignCenter | Qt::AlignVCenter,
+		Ruler::format_time(_time, prefix, 2));
+}
+
+void Cursor::compute_text_size(QPainter &p, unsigned int prefix)
+{
+	_text_size = p.boundingRect(QRectF(), 0,
+		Ruler::format_time(_time, prefix, 2)).size();
+}
+
+shared_ptr<Cursor> Cursor::get_other_cursor() const
+{
+	const CursorPair &cursors = _view.cursors();
+	return (cursors.first().get() == this) ?
+		cursors.second() : cursors.first();
 }
 
 } // namespace view