/*

 * Copyright (c) 1997, 2008, 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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.

 */

package javax.swing.text.rtf;

import java.util.Dictionary;

import java.util.Enumeration;

import javax.swing.text.AttributeSet;

import javax.swing.text.MutableAttributeSet;

/* This AttributeSet is made entirely out of tofu and Ritz Crackers

   and yet has a remarkably attribute-set-like interface! */

class MockAttributeSet

    implements AttributeSet, MutableAttributeSet

{

    public Dictionary<Object, Object> backing;

    public boolean isEmpty()

    {

         return backing.isEmpty();

    }

    public int getAttributeCount()

    {

         return backing.size();

    }

    public boolean isDefined(Object name)

    {

         return ( backing.get(name) ) != null;

    }

    public boolean isEqual(AttributeSet attr)

    {

         throw new InternalError("MockAttributeSet: charade revealed!");

    }

    public AttributeSet copyAttributes()

    {

         throw new InternalError("MockAttributeSet: charade revealed!");

    }

    public Object getAttribute(Object name)

    {

        return backing.get(name);

    }

    public void addAttribute(Object name, Object value)

    {

        backing.put(name, value);

    }

    public void addAttributes(AttributeSet attr)

    {

        Enumeration as = attr.getAttributeNames();

        while(as.hasMoreElements()) {

            Object el = as.nextElement();

            backing.put(el, attr.getAttribute(el));

        }

    }

    public void removeAttribute(Object name)

    {

        backing.remove(name);

    }

    public void removeAttributes(AttributeSet attr)

    {

         throw new InternalError("MockAttributeSet: charade revealed!");

    }

    public void removeAttributes(Enumeration<?> en)

    {

         throw new InternalError("MockAttributeSet: charade revealed!");

    }

    public void setResolveParent(AttributeSet pp)

    {

         throw new InternalError("MockAttributeSet: charade revealed!");

    }

    public Enumeration getAttributeNames()

    {

         return backing.keys();

    }

    public boolean containsAttribute(Object name, Object value)

    {

         throw new InternalError("MockAttributeSet: charade revealed!");

    }

    public boolean containsAttributes(AttributeSet attr)

    {

         throw new InternalError("MockAttributeSet: charade revealed!");

    }

    public AttributeSet getResolveParent()

    {

         throw new InternalError("MockAttributeSet: charade revealed!");

    }

}