Disable antialiasing on high-DPI displays

[pulseview.git] / pv / views / trace / analogsignal.cpp

diff --git a/pv/views/trace/analogsignal.cpp b/pv/views/trace/analogsignal.cpp
index d9b72addb6a512fea60ed9311b17babffecb6c6a..599246418b1993bd74ffaf1d9c51a1e14a2b860d 100644 (file)
--- a/pv/views/trace/analogsignal.cpp
+++ b/pv/views/trace/analogsignal.cpp
@@ -319,6 +319,7 @@ void AnalogSignal::paint_fore(QPainter &p, ViewItemPaintParams &pp)
 
 void AnalogSignal::paint_grid(QPainter &p, int y, int left, int right)
 {
+       bool wasAntialiased = p.testRenderHint(QPainter::Antialiasing);
        p.setRenderHint(QPainter::Antialiasing, false);
 
        if (pos_vdivs_ > 0) {
@@ -363,7 +364,7 @@ void AnalogSignal::paint_grid(QPainter &p, int y, int left, int right)
                }
        }
 
-       p.setRenderHint(QPainter::Antialiasing, true);
+       p.setRenderHint(QPainter::Antialiasing, wasAntialiased);
 }
 
 void AnalogSignal::paint_trace(QPainter &p,