modules/base/src/main/java/javafx/collections/transformation/FilteredList.java

rev 9769 : 8139848: SortedList should provide a way to map source index to view index

@@ -178,10 +178,15 @@
             throw new IndexOutOfBoundsException();
         }
         return filtered[index];
     }
 
+    @Override
+    public int getViewIndex(int index) {
+        return Arrays.binarySearch(filtered, 0, size, index);
+    }
+
     private SortHelper getSortHelper() {
         if (helper == null) {
             helper = new SortHelper();
         }
         return helper;