8139176: [macosx] java.awt.TextLayout does not handle correctly the bolded logical fonts

Reviewed-by: serb, vadim

jdk/src/java.desktop/macosx/classes/sun/font/CFont.java

@@ -278,6 +278,18 @@ public final class CFont extends PhysicalFont implements FontSubstitution {
         return getStrike(font, DEFAULT_FRC);
     }
 
+    public boolean equals(Object o) {
+         if (!super.equals(o)) {
+             return false;
+         }
+
+         return ((Font2D)o).getStyle() == this.getStyle();
+    }
+
+    public int hashCode() {
+        return super.hashCode() ^ this.getStyle();
+    }
+
     public String toString() {
         return "CFont { fullName: " + fullName +
             ",  familyName: " + familyName + ", style: " + style +

jdk/test/java/awt/font/TextLayout/StyledFontLayoutTest.java

@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2016, 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 8139176
+ * @summary Test layout uses correct styled font.
+ * @run main StyledFontLayoutTest
+ */
+
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.RenderingHints;
+import java.awt.font.FontRenderContext;
+import java.awt.font.GlyphVector;
+import java.awt.geom.Rectangle2D;
+import java.awt.image.BufferedImage;
+
+import javax.swing.JFrame;
+import javax.swing.JPanel;
+import javax.swing.SwingUtilities;
+import javax.swing.WindowConstants;
+
+public class StyledFontLayoutTest extends JPanel {
+
+    static final int W=600, H=400;
+    static boolean interactive;
+    static BufferedImage im;
+    public static void main(String[] args) {
+
+        interactive = args.length > 0;
+
+        runTest();
+
+        if (!interactive) {
+            return;
+        }
+        SwingUtilities.invokeLater(() -> {
+            JFrame frame = new JFrame("Styled Font Layout Test");
+            frame.add(new StyledFontLayoutTest());
+            frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
+            frame.setSize(W, H);
+            frame.setLocationRelativeTo(null);
+            frame.setVisible(true);
+        });
+    }
+
+    @Override
+    protected void paintComponent(Graphics g) {
+        g.drawImage(im, 0, 0, null);
+    }
+
+    private static void runTest() {
+        im = new BufferedImage(W, H, BufferedImage.TYPE_INT_RGB);
+        Graphics2D g2d = im.createGraphics();
+        g2d.setColor(Color.white);
+        g2d.fillRect(0, 0, W, H);
+        g2d.setColor(Color.black);
+        g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
+                             RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
+        char[] chs = "Sample Text.".toCharArray();
+        int len = chs.length;
+
+        int x = 50, y = 100;
+
+        FontRenderContext frc = g2d.getFontRenderContext();
+        Font plain = new Font("Serif", Font.PLAIN, 48);
+        GlyphVector pgv = plain.layoutGlyphVector(frc, chs, 0, len, 0);
+        g2d.setFont(plain);
+        g2d.drawChars(chs, 0, len, x, y); y +=50;
+
+        g2d.drawGlyphVector(pgv, x, y); y += 50;
+        Rectangle2D plainStrBounds = plain.getStringBounds(chs, 0, len, frc);
+        Rectangle2D plainGVBounds = pgv.getLogicalBounds();
+        Font bold = new Font("Serif", Font.BOLD, 48);
+        GlyphVector bgv = bold.layoutGlyphVector(frc, chs, 0, len, 0);
+        Rectangle2D boldStrBounds = bold.getStringBounds(chs, 0, len, frc);
+        Rectangle2D boldGVBounds = bgv.getLogicalBounds();
+        g2d.setFont(bold);
+        g2d.drawChars(chs, 0, len, x, y); y +=50;
+        g2d.drawGlyphVector(bgv, x, y);
+        System.out.println("Plain String Bounds = " + plainStrBounds);
+        System.out.println("Bold String Bounds = " + boldStrBounds);
+        System.out.println("Plain GlyphVector Bounds = " + plainGVBounds);
+        System.out.println("Bold GlyphVector Bounds = " + boldGVBounds);
+        if (!plainStrBounds.equals(boldStrBounds) &&
+             plainGVBounds.equals(boldGVBounds))
+        {
+            System.out.println("Test failed: Plain GV bounds same as Bold");
+            if (!interactive) {
+                throw new RuntimeException("Plain GV bounds same as Bold");
+            }
+        }
+
+    };
+}