X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fview%2Ftrace.cpp;h=ae8ee901a27316738434c6f8e64a29376a77496f;hb=27e8df221014d1a8c7769866773e8dbb0486eea8;hp=464cadcde2ede54aaa6b4c8e0f3fcae9a1308e9f;hpb=37fd11b167b2c258610b629bc4e17fc158b13a48;p=pulseview.git

diff --git a/pv/view/trace.cpp b/pv/view/trace.cpp
index 464cadcd..ae8ee901 100644
--- a/pv/view/trace.cpp
+++ b/pv/view/trace.cpp
@@ -23,6 +23,7 @@
 #include <assert.h>
 #include <math.h>
 
+#include <QApplication>
 #include <QFormLayout>
 #include <QLineEdit>
 
@@ -116,7 +117,6 @@ void Trace::paint_label(QPainter &p, int right, bool hover)
 
 	const QColor colour = get_colour();
 
-	compute_text_size(p);
 	const QRectF label_rect = get_label_rect(right);
 
 	// Paint the label
@@ -156,6 +156,7 @@ void Trace::paint_label(QPainter &p, int right, bool hover)
 
 	// Paint the text
 	p.setPen(get_text_colour());
+	p.setFont(QApplication::font());
 	p.drawText(label_rect, Qt::AlignCenter | Qt::AlignVCenter, _name);
 }
 
@@ -197,6 +198,26 @@ int Trace::get_y() const
 	return _v_offset - _view->v_offset();
 }
 
+QRectF Trace::get_label_rect(int right)
+{
+	using pv::view::View;
+
+	assert(_view);
+
+	QFontMetrics m(QApplication::font());
+	const QSize text_size(
+		m.boundingRect(QRect(), 0, _name).width(),
+		m.boundingRect(QRect(), 0, "Tg").height());
+	const QSizeF label_size(
+		text_size.width() + View::LabelPadding.width() * 2,
+		ceilf((text_size.height() + View::LabelPadding.height() * 2) / 2) * 2);
+	const float label_arrow_length = label_size.height() / 2;
+	return QRectF(
+		right - label_arrow_length - label_size.width() - 0.5,
+		get_y() + 0.5f - label_size.height() / 2,
+		label_size.width(), label_size.height());
+}
+
 QColor Trace::get_text_colour() const
 {
 	return (_colour.lightness() > 64) ? Qt::black : Qt::white;
@@ -249,29 +270,6 @@ void Trace::populate_popup_form(QWidget *parent, QFormLayout *form)
 	add_colour_option(parent, form);
 }
 
-void Trace::compute_text_size(QPainter &p)
-{
-	_text_size = QSize(
-		p.boundingRect(QRectF(), 0, _name).width(),
-		p.boundingRect(QRectF(), 0, "Tg").height());
-}
-
-QRectF Trace::get_label_rect(int right)
-{
-	using pv::view::View;
-
-	assert(_view);
-
-	const QSizeF label_size(
-		_text_size.width() + View::LabelPadding.width() * 2,
-		ceilf((_text_size.height() + View::LabelPadding.height() * 2) / 2) * 2);
-	const float label_arrow_length = label_size.height() / 2;
-	return QRectF(
-		right - label_arrow_length - label_size.width() - 0.5,
-		get_y() + 0.5f - label_size.height() / 2,
-		label_size.width(), label_size.height());
-}
-
 void Trace::on_popup_closed()
 {
 	_popup = NULL;