Disable antialiasing on high-DPI displays

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

diff --git a/pv/views/trace/viewport.cpp b/pv/views/trace/viewport.cpp
index 83abb7b6cbd5273f699a204d2720e4404f6c00e2..44c912a1acf1ccc117718d09cbc45b816e64a284 100644 (file)
--- a/pv/views/trace/viewport.cpp
+++ b/pv/views/trace/viewport.cpp
@@ -30,6 +30,8 @@
 #include <pv/session.hpp>
 
 #include <QMouseEvent>
 #include <pv/session.hpp>
 
 #include <QMouseEvent>

+#include <QScreen>
+#include <QWindow>

 
 #include <QDebug>
 
 
 #include <QDebug>
 


@@ -172,7 +174,10 @@ void Viewport::paintEvent(QPaintEvent*)
                [](const shared_ptr<TimeItem> &t) { return !t; }));
 
        QPainter p(this);
                [](const shared_ptr<TimeItem> &t) { return !t; }));
 
        QPainter p(this);

-       p.setRenderHint(QPainter::Antialiasing);
+
+       bool useAntialiasing =
+               window()->windowHandle()->screen()->devicePixelRatio() < 2.0;
+       p.setRenderHint(QPainter::Antialiasing, useAntialiasing);

 
        for (LayerPaintFunc *paint_func = layer_paint_funcs;
                        *paint_func; paint_func++) {
 
        for (LayerPaintFunc *paint_func = layer_paint_funcs;
                        *paint_func; paint_func++) {