001    /* MultiStyle.java -- Multiplexes between several Styles
002       Copyright (C) 2006 Free Software Foundation, Inc.
003    
004    This file is part of GNU Classpath.
005    
006    GNU Classpath is free software; you can redistribute it and/or modify
007    it under the terms of the GNU General Public License as published by
008    the Free Software Foundation; either version 2, or (at your option)
009    any later version.
010    
011    GNU Classpath is distributed in the hope that it will be useful, but
012    WITHOUT ANY WARRANTY; without even the implied warranty of
013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014    General Public License for more details.
015    
016    You should have received a copy of the GNU General Public License
017    along with GNU Classpath; see the file COPYING.  If not, write to the
018    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019    02110-1301 USA.
020    
021    Linking this library statically or dynamically with other modules is
022    making a combined work based on this library.  Thus, the terms and
023    conditions of the GNU General Public License cover the whole
024    combination.
025    
026    As a special exception, the copyright holders of this library give you
027    permission to link this library with independent modules to produce an
028    executable, regardless of the license terms of these independent
029    modules, and to copy and distribute the resulting executable under
030    terms of your choice, provided that you also meet, for each linked
031    independent module, the terms and conditions of the license of that
032    module.  An independent module is a module which is not derived from
033    or based on this library.  If you modify this library, you may extend
034    this exception to your version of the library, but you are not
035    obligated to do so.  If you do not wish to do so, delete this
036    exception statement from your version. */
037    
038    
039    package javax.swing.text.html;
040    
041    import java.util.Enumeration;
042    
043    import javax.swing.event.ChangeListener;
044    import javax.swing.text.AttributeSet;
045    import javax.swing.text.SimpleAttributeSet;
046    import javax.swing.text.Style;
047    
048    /**
049     * A Style implementation that is able to multiplex between several other
050     * Styles. This is used for CSS style resolving.
051     * 
052     * @author Roman Kennke (kennke@aicas.com)
053     */
054    public class MultiStyle
055      extends MultiAttributeSet
056      implements Style
057    {
058    
059      // FIXME: Fix the implementation to also return attributes that
060      // are added to this style, etc. However, this is not really needed
061      // now for CSS, but would be nice for correctness.
062    
063      /**
064       * The name of the style.
065       */
066      private String name;
067    
068      /**
069       * The attributes added to this style.
070       */
071      private SimpleAttributeSet attributes;
072    
073      /**
074       * Creates a new instance.
075       *
076       * @param n the name
077       * @param m the styles to multiplex
078       */
079      public MultiStyle(String n, AttributeSet[] m)
080      {
081        super(m);
082        name = n;
083        attributes = new SimpleAttributeSet();
084      }
085    
086      /**
087       * Returns the name of the style.
088       *
089       * @return the name of the style
090       */
091      public String getName()
092      {
093        return name;
094      }
095    
096      public void addChangeListener(ChangeListener listener)
097      {
098        // TODO: Implement.
099      }
100    
101      public void removeChangeListener(ChangeListener listener)
102      {
103        // TODO: Implement.
104      }
105    
106      public void addAttribute(Object name, Object value)
107      {
108        attributes.addAttribute(name, value);
109      }
110    
111      public void addAttributes(AttributeSet atts)
112      {
113        attributes.addAttributes(atts);
114      }
115    
116      public void removeAttribute(Object name)
117      {
118        attributes.removeAttribute(name);
119      }
120    
121      public void removeAttributes(Enumeration names)
122      {
123        attributes.removeAttribute(names);
124      }
125    
126      public void removeAttributes(AttributeSet atts)
127      {
128        attributes.removeAttribute(atts);
129      }
130    
131      public void setResolveParent(AttributeSet parent)
132      {
133        // TODO: Implement.
134      }
135    
136    }