PyQt window resize using incorrect viewport

PyQt reports resize values using the actual buffer size, not the scaled size.

Author: einarf

demosys/context/pyqt/window.py

@@ -115,17 +115,16 @@ def mouseMoveEvent(self, event):
     def resize(self, width, height):
         """
         Pyqt specific resize callback.
-        The window currently do not support resizing.
         """
         if not self.fbo:
             return
 
-        self.width = width
-        self.height = height
-        self.buffer_width = self.width * self.widget.devicePixelRatio()
-        self.buffer_height = self.height * self.widget.devicePixelRatio()
+        # pyqt reports sizes in actual buffer size
+        self.width = width // self.widget.devicePixelRatio()
+        self.height = height // self.widget.devicePixelRatio()
+        self.buffer_width = width
+        self.buffer_height = height
 
-        print(width, height)
         super().resize(width, height)
 
     def swap_buffers(self):