Draw analog with a polyline rather than points

diff --git a/pv/view/analogsignal.cpp b/pv/view/analogsignal.cpp
index e29930865f6601eccf8b43986db1f44f9523b090..251a0ffb5681870b165be0aac83de77d0d8f97f1 100644 (file)
--- a/pv/view/analogsignal.cpp
+++ b/pv/view/analogsignal.cpp
@@ -82,7 +82,7 @@ void AnalogSignal::paint(QPainter &p, int y, int left, int right, double scale,
 
        const int64_t start_sample = min(max((int64_t)floor(start),
                (int64_t)0), last_sample);
-       const int64_t end_sample = min(max((int64_t)ceil(end),
+       const int64_t end_sample = min(max((int64_t)ceil(end) + 1,
                (int64_t)0), last_sample);
 
        if (samples_per_pixel < EnvelopeThreshold)
@@ -117,7 +117,7 @@ void AnalogSignal::paint_trace(QPainter &p,
                        y - samples[sample - start] * _scale);
        }
 
-       p.drawPoints(points, point - points);
+       p.drawPolyline(points, point - points);
 
        delete[] samples;
        delete[] points;