src/java.desktop/share/classes/sun/font/FontDesignMetrics.java

@@ -31,10 +31,11 @@
 import java.awt.FontMetrics;
 import java.awt.Font;
 import java.awt.GraphicsEnvironment;
 import java.awt.geom.AffineTransform;
 import java.awt.geom.NoninvertibleTransformException;
+import java.awt.geom.Rectangle2D;
 import java.awt.font.FontRenderContext;
 import java.awt.font.TextLayout;
 
 import java.io.IOException;
 import java.io.ObjectInputStream;

@@ -517,10 +518,32 @@
 
         return (int) (0.5 + width);
     }
 
     /**
+     * This method is called from java.awt.Font only after verifying
+     * the arguments and that the text is simple and there are no
+     * layout attributes, font transform etc.
+     */
+    public Rectangle2D getSimpleBounds(char data[], int off, int len) {
+
+        float width = 0;
+        int limit = off + len;
+        for (int i=off; i < limit; i++) {
+            char ch = data[i];
+            if (ch < 0x100) {
+                width += getLatinCharWidth(ch);
+            } else {
+                width += handleCharWidth(ch);
+            }
+        }
+
+        float height = ascent + descent + leading;
+        return new Rectangle2D.Float(0f, ascent, width, height);
+     }
+
+    /**
      * Gets the advance widths of the first 256 characters in the
      * {@code Font}.  The advance is the
      * distance from the leftmost point to the rightmost point on the
      * character's baseline.  Note that the advance of a
      * {@code String} is not necessarily the sum of the advances