MNT: Always use scaling with Qt if available

tacaswell · tacaswell · commit 5a6826ff088d · 2017-04-17T17:02:44.000-04:00
diff --git a/lib/matplotlib/backends/backend_qt5.py b/lib/matplotlib/backends/backend_qt5.py
@@ -149,7 +149,11 @@ def _create_qApp():
             qApp = app
 
     if is_pyqt5():
-        qApp.setAttribute(QtCore.Qt.AA_UseHighDpiPixmaps)
+        try:
+            qApp.setAttribute(QtCore.Qt.AA_UseHighDpiPixmaps)
+            qApp.setAttribute(QtCore.Qt.AA_EnableHighDpiScaling)
+        except AttributeError:
+            pass
 
 
 class Show(ShowBase):
@@ -159,6 +163,7 @@ def mainloop(self):
         global qApp
         qApp.exec_()
 
+
 show = Show()
 
 
