7017637: closed/java/awt/font/StyledMetrics/BoldSpace.java failed : Space char should have 0 advance
Reviewed-by: igor, jgodinez
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/awt/font/StyledMetrics/BoldSpace.java Fri Feb 18 09:18:32 2011 -0800
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2008, 2011, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ @test
+ @bug 6686365 7017637
+ @summary Confirm that styling does not affect metrics of zero advance glyphs
+*/
+
+import java.awt.*;
+import java.awt.image.*;
+
+public class BoldSpace {
+ public static void main(String[] s) {
+ BufferedImage bi = new BufferedImage(100, 100, BufferedImage.TYPE_INT_ARGB);
+
+ String errMsg = "ZWJ Space char should have 0 advance\n";
+
+ Graphics g = bi.getGraphics();
+
+ // It turns out that some fonts inexplicably treat this as
+ // a standard character. In this 14 pt font, if we see an advance
+ // that's clearly bigger than we'd have introduced in bolding we'll
+ // not error out this test, presuming that its a consequence of
+ // the actual font data. A Linux font 'TLwg Type Bold' is the case
+ // in point.
+ int errorMargin = 4;
+ g.setFont(new Font("monospaced", Font.BOLD, 14));
+ //g.setFont(new Font("Lucida Sans Regular", Font.BOLD, 14));
+ FontMetrics fm = g.getFontMetrics();
+ System.out.println("Bold: " + fm.charWidth('\u200b'));
+ int cwid = fm.charWidth('\u200b');
+ if (cwid > 0 && cwid < errorMargin) {
+ throw new RuntimeException(errMsg);
+ }
+
+ ((Graphics2D)g).setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
+ RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB);
+ fm = g.getFontMetrics();
+ System.out.println("Bold + LCD: "+fm.charWidth('\u200b'));
+ cwid = fm.charWidth('\u200b');
+ if (cwid > 0 && cwid < errorMargin) {
+ throw new RuntimeException(errMsg);
+ }
+
+
+ ((Graphics2D)g).setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
+ RenderingHints.VALUE_FRACTIONALMETRICS_ON);
+ ((Graphics2D)g).setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
+ RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
+ fm = g.getFontMetrics();
+ System.out.println("Bold FM OFF + AA: " + fm.charWidth('\u200b'));
+ cwid = fm.charWidth('\u200b');
+ if (cwid > 0 && cwid < errorMargin) {
+ throw new RuntimeException(errMsg);
+ }
+
+ ((Graphics2D)g).setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
+ RenderingHints.VALUE_FRACTIONALMETRICS_OFF);
+ ((Graphics2D)g).setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
+ RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
+ fm = g.getFontMetrics();
+ System.out.println("Bold FM ON + AA: " + fm.charWidth('\u200b'));
+ cwid = fm.charWidth('\u200b');
+ if (cwid > 0 && cwid < errorMargin) {
+ throw new RuntimeException(errMsg);
+ }
+
+ ((Graphics2D)g).setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
+ RenderingHints.VALUE_FRACTIONALMETRICS_ON);
+ ((Graphics2D)g).setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
+ RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
+ fm = g.getFontMetrics();
+ System.out.println("Bold FM ON + nonAA: " + fm.charWidth('\u200b'));
+ cwid = fm.charWidth('\u200b');
+ if (cwid > 0 && cwid < errorMargin) {
+ throw new RuntimeException(errMsg);
+ }
+
+ System.out.println("All printed values should be 0 to PASS");
+ }
+}