From: Soeren Apel <soeren@apelpie.net>
Date: Fri, 30 Mar 2018 21:03:28 +0000 (+0200)
Subject: Really fix #1125 (and maybe #1139)
X-Git-Url: http://git.code-monkey.de/?p=pulseview.git;a=commitdiff_plain;h=4bd0ecb8d08b655a4e2a1d60b3166e97b290475c

Really fix #1125 (and maybe #1139)
---

diff --git a/pv/views/trace/analogsignal.cpp b/pv/views/trace/analogsignal.cpp
index 3595840..43d1175 100644
--- a/pv/views/trace/analogsignal.cpp
+++ b/pv/views/trace/analogsignal.cpp
@@ -277,7 +277,7 @@ void AnalogSignal::paint_mid(QPainter &p, ViewItemPaintParams &pp)
 		paint_grid(p, y, pp.left(), pp.right());
 
 		shared_ptr<pv::data::AnalogSegment> segment = get_analog_segment_to_paint();
-		if (!segment)
+		if (!segment || (segment->get_sample_count() == 0))
 			return;
 
 		const double pixels_offset = pp.pixels_offset();
@@ -538,7 +538,7 @@ void AnalogSignal::paint_logic_mid(QPainter &p, ViewItemPaintParams &pp)
 	const float low_offset = y + nh - signal_margin - 0.5f;
 
 	shared_ptr<pv::data::LogicSegment> segment = get_logic_segment_to_paint();
-	if (!segment)
+	if (!segment || (segment->get_sample_count() == 0))
 		return;
 
 	double samplerate = segment->samplerate();
diff --git a/pv/views/trace/logicsignal.cpp b/pv/views/trace/logicsignal.cpp
index 759f858..10a5bd4 100644
--- a/pv/views/trace/logicsignal.cpp
+++ b/pv/views/trace/logicsignal.cpp
@@ -193,7 +193,7 @@ void LogicSignal::paint_mid(QPainter &p, ViewItemPaintParams &pp)
 	const float low_offset = y + 0.5f;
 
 	shared_ptr<pv::data::LogicSegment> segment = get_logic_segment_to_paint();
-	if (!segment)
+	if (!segment || (segment->get_sample_count() == 0))
 		return;
 
 	double samplerate = segment->samplerate();