6593649: Word wrap broken for JTextArea

Summary: Layout correctly resizes components based on actual dimensions of the window they are in.
Reviewed-by: gsm
Contributed-by: NLillian Angel <langel@redhat.com>

src/share/classes/javax/swing/text/WrappedPlainView.java

@@ -327,13 +327,45 @@ public class WrappedPlainView extends BoxView implements TabExpander {
     /**
      * Return reasonable default values for the view dimensions.  The standard
      * text terminal size 80x24 is pretty suitable for the wrapped plain view.
+     *
+     * The size should not be larger than the component housing the view's
+     * container.
      */
     private float getDefaultSpan(int axis) {
+         Container host = getContainer();
+         Component parent = null;
+
+         if (host != null) {
+            parent = host.getParent();
+         }
+
          switch (axis) {
             case View.X_AXIS:
-                return 80 * metrics.getWidths()['M'];
+               int defaultWidth = 80 * metrics.getWidths()['M'];
+               int parentWidth = 0;
+
+               if (parent != null) {
+                  parentWidth = parent.getWidth();
+               }
+
+               if (defaultWidth > parentWidth) {
+                 return parentWidth;
+               }
+               return defaultWidth;
+
             case View.Y_AXIS:
-                return 24 * metrics.getHeight();
+               int defaultHeight = 24 * metrics.getHeight();
+               int parentHeight = 0;
+
+               if (parent != null) {
+                  parentHeight = parent.getHeight();
+               }
+
+               if (defaultHeight > parentHeight) {
+                 return parentHeight;
+               }
+               return defaultHeight;
+
             default:
                 throw new IllegalArgumentException("Invalid axis: " + axis);
         }

test/javax/swing/JTextArea/Test6593649.java

+/*
+ * Copyright 2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/* @test
+   @bug 6593649
+   @summary Word wrap does not work in JTextArea: long lines are not wrapped
+   @author Lillian Angel
+   @run main Test6593649
+*/
+
+import javax.swing.*;
+import java.awt.*;
+
+public class Test6593649 extends JFrame {
+  static JTextArea txt;
+  static JPanel innerPanel;
+
+  public Test6593649(Dimension d)
+  {
+    super("Word Wrap Testcase");
+
+    setSize(d);
+
+    final Container contentPane = getContentPane();
+
+    innerPanel = new JPanel();
+    innerPanel.setLayout(new BoxLayout(innerPanel, BoxLayout.LINE_AXIS));
+
+    txt = new JTextArea("This is a long line that should wrap, but doesn't...");
+    txt.setLineWrap(true);
+    txt.setWrapStyleWord(true);
+
+    innerPanel.add(txt);
+
+    contentPane.add(innerPanel, BorderLayout.SOUTH);
+  }
+
+  public static void main(String[] args) throws InterruptedException
+  {
+    int size = 100;
+    Dimension d;
+    Test6593649 cp;
+    Dimension txtSize;
+    Dimension innerSize;
+    Dimension cpSize;
+
+    while (size <= 600)
+    {
+      d = new Dimension(size, size);
+      cp = new Test6593649(d);
+      cp.setVisible(true);
+
+      txtSize = txt.getPreferredSize();
+      innerSize = innerPanel.getPreferredSize();
+      cpSize = cp.getSize();
+
+      if (!(txtSize.getWidth() == innerPanel.getWidth() && txtSize.getHeight() == innerPanel.getHeight() &&
+           txtSize.getWidth() <= cpSize.getWidth() && txtSize.getHeight() <= cpSize.getHeight()))
+      {
+        throw new RuntimeException("Test failed: Text area size does not properly match panel and frame sizes");
+      }
+
+      Thread.sleep(2000);
+
+      cp.hide();
+      size += 50;
+    }
+  }
+}