Fixup 38f09c177b7: limit to paint rectangle

diff --git a/src/frontends/qt4/GuiWorkArea.cpp b/src/frontends/qt4/GuiWorkArea.cpp
index c190a48d59646451a8b1dd98df65b5c6174171ff..11f8da81fd3415e8fa20d942dfd49545b629610a 100644 (file)
--- a/src/frontends/qt4/GuiWorkArea.cpp
+++ b/src/frontends/qt4/GuiWorkArea.cpp
@@ -1272,7 +1272,7 @@ void GuiWorkArea::paintEvent(QPaintEvent * ev)
                // except on macOS).
                d->updateScreen(ev->rect());
                // Ignore this paint event, but request a new one for later.
-               viewport()->update();
+               viewport()->update(ev->rect());
                ev->accept();
                return;
        }