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diff --git a/libjava/javax/swing/text/DefaultStyledDocument.java b/libjava/javax/swing/text/DefaultStyledDocument.java
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+/* DefaultStyledDocument.java --
+   Copyright (C) 2004 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package javax.swing.text;
+
+import java.awt.Color;
+import java.awt.Font;
+import java.io.Serializable;
+
+/**
+ * @author Michael Koch (konqueror@gmx.de)
+ */
+public class DefaultStyledDocument extends AbstractDocument
+  implements StyledDocument
+{
+  public class ElementBuffer
+    implements Serializable
+  {
+    private Element root;
+    
+    public ElementBuffer(Element root)
+    {
+      this.root = root;
+    }
+
+    public Element getRootElement()
+    {
+      return root;
+    }
+  }
+  
+  public static final int BUFFER_SIZE_DEFAULT = 4096;
+
+  protected DefaultStyledDocument.ElementBuffer buffer;
+  
+  public DefaultStyledDocument()
+  {
+    this(new GapContent(BUFFER_SIZE_DEFAULT), new StyleContext());
+  }
+
+  public DefaultStyledDocument(StyleContext context)
+  {
+    this(new GapContent(BUFFER_SIZE_DEFAULT), context);
+  }
+
+  public DefaultStyledDocument(AbstractDocument.Content content,
+			       StyleContext context)
+  {
+    super(content, context);
+    buffer = new ElementBuffer(createDefaultRoot());
+    setLogicalStyle(0, context.getStyle(StyleContext.DEFAULT_STYLE));
+  }
+
+  public Style addStyle(String nm, Style parent)
+  {
+    StyleContext context = (StyleContext) getAttributeContext();
+    return context.addStyle(nm, parent);
+  }
+  
+  protected AbstractDocument.AbstractElement createDefaultRoot()
+  {
+    Element[] tmp;
+    BranchElement section = new BranchElement(null, null);
+    
+    BranchElement paragraph = new BranchElement(section, null);
+    tmp = new Element[1];
+    tmp[0] = paragraph;
+    section.replace(0, 0, tmp);
+
+    LeafElement leaf = new LeafElement(paragraph, null, 0, 1);
+    tmp = new Element[1];
+    tmp[0] = leaf;
+    paragraph.replace(0, 0, tmp);
+    
+    return section;
+  }
+  
+  public Element getCharacterElement(int position)
+  {
+    Element element = getDefaultRootElement();
+
+    while (! element.isLeaf())
+      {
+	int index = element.getElementIndex(position);
+	element = element.getElement(index);
+      }
+    
+    return element;
+  }
+  
+  public Color getBackground(AttributeSet attributes)
+  {
+    StyleContext context = (StyleContext) getAttributeContext();
+    return context.getBackground(attributes);
+  }
+  
+  public Element getDefaultRootElement()
+  {
+    return buffer.getRootElement();
+  }
+  
+  public Font getFont(AttributeSet attributes)
+  {
+    StyleContext context = (StyleContext) getAttributeContext();
+    return context.getFont(attributes);
+  }
+  
+  public Color getForeground(AttributeSet attributes)
+  {
+    StyleContext context = (StyleContext) getAttributeContext();
+    return context.getForeground(attributes);
+  }
+  
+  public Style getLogicalStyle(int position)
+  {
+    Element paragraph = getParagraphElement(position);
+    AttributeSet attributes = paragraph.getAttributes();
+    return (Style) attributes.getResolveParent();
+  }
+  
+  public Element getParagraphElement(int position)
+  {
+    Element element = getCharacterElement(position);
+    return element.getParentElement();
+  }
+
+  public Style getStyle(String nm)
+  {
+    StyleContext context = (StyleContext) getAttributeContext();
+    return context.getStyle(nm);
+  }
+
+  public void removeStyle(String nm)
+  {
+    StyleContext context = (StyleContext) getAttributeContext();
+    context.removeStyle(nm);
+  }
+
+  public void setCharacterAttributes(int offset, int length,
+				     AttributeSet attributes,
+				     boolean replace)
+  {
+    // FIXME: Implement me.
+    throw new Error("not implemented");
+  }
+  
+  public void setLogicalStyle(int position, Style style)
+  {
+    // FIXME: Implement me.
+    throw new Error("not implemented");
+  }
+
+  public void setParagraphAttributes(int offset, int length,
+				     AttributeSet attributes,
+				     boolean replace)
+  {
+    // FIXME: Implement me.
+    throw new Error("not implemented");
+  }
+}