src/java.desktop/windows/classes/sun/awt/windows/WDialogPeer.java

rev 60071 : 8211999: Window positioning bugs due to overlapping GraphicsDevice bounds (Windows/HiDPI)
Reviewed-by: XXX

@@ -34,10 +34,12 @@
 import java.awt.peer.DialogPeer;
 
 import sun.awt.AWTAccessor;
 import sun.awt.im.InputMethodManager;
 
+import static sun.java2d.SunGraphicsEnvironment.toUserSpace;
+
 final class WDialogPeer extends WWindowPeer implements DialogPeer {
     // Toolkit & peer internals
 
     // Platform default background for dialogs.  Gets set on target if
     // target has none explicitly specified.

@@ -115,12 +117,12 @@
     @Override
     public Dimension getMinimumSize() {
         if (((Dialog)target).isUndecorated()) {
             return super.getMinimumSize();
         }
-        return new Dimension(scaleDownX(getSysMinWidth()),
-                             scaleDownY(getSysMinHeight()));
+        return toUserSpace(getGraphicsConfiguration(),
+                           getSysMinWidth(), getSysMinHeight());
     }
 
     @Override
     boolean isTargetUndecorated() {
         return ((Dialog)target).isUndecorated();