eirikbakke commented on code in PR #8310:
URL: https://github.com/apache/netbeans/pull/8310#discussion_r1990560385


##########
platform/core.windows/src/org/netbeans/core/windows/view/dnd/DragWindow.java:
##########
@@ -44,6 +46,9 @@
  * @author sa
  */
 class DragWindow extends JWindow {
+    /* Store buffers at 2x the logical resolution. Then scale them down by 50% 
when painting to the
+    JWindow. This ensures full-resolution painting on HiDPI and Retina 
screens. */
+    private static final int DPI_SCALE = 2;
 
     private boolean useFadeEffects = !Boolean.getBoolean( 
"winsys.dnd.nofadeeffects" );

Review Comment:
   I added two more proposed commits, (1) to remove the animation code and make 
resulting simplifications, and (2) to remove the flicker and one more bug I 
discovered.
   
   We could try to remove the JNA stuff, but that requires testing on every 
platform, so I didn't do it currently.



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