Initial revision

From-SVN: r102074

libjava/classpath/javax/swing/text/SimpleAttributeSet.java

@@ -0,0 +1,193 @@
+/* SimpleAttributeSet.java --
+   Copyright (C) 2004, 2005 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., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 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.io.Serializable;
+import java.util.Enumeration;
+import java.util.Hashtable;
+
+public class SimpleAttributeSet
+  implements MutableAttributeSet, Serializable, Cloneable
+{
+  public static final AttributeSet EMPTY = new SimpleAttributeSet();
+
+  Hashtable tab;
+
+  public SimpleAttributeSet()
+  {
+    this(null);
+  }
+  
+  public SimpleAttributeSet(AttributeSet a)
+  {
+    tab = new Hashtable();
+    if (a != null)
+      addAttributes(a);
+  }
+
+  public void addAttribute(Object name, Object value)
+  {
+    tab.put(name, value);
+  }
+
+  public void addAttributes(AttributeSet attributes)
+  {
+    Enumeration e = attributes.getAttributeNames();
+    while (e.hasMoreElements())
+      {
+        Object name = e.nextElement();
+        Object val = attributes.getAttribute(name);
+        tab.put(name, val);
+      }
+  }
+
+  public Object clone()
+  {
+    SimpleAttributeSet s = new SimpleAttributeSet();
+    s.tab = (Hashtable) tab.clone();
+    return s;
+  }
+
+  public boolean containsAttribute(Object name, Object value)
+  {
+    return tab.containsKey(name) 
+      && tab.get(name).equals(value);
+  }
+    
+  public boolean containsAttributes(AttributeSet attributes)
+  {
+    Enumeration e = attributes.getAttributeNames();
+    while (e.hasMoreElements())
+      {
+        Object name = e.nextElement();
+        Object val = attributes.getAttribute(name);
+        if (! containsAttribute(name, val))
+          return false;		
+      }
+    return true;
+  }
+
+  public AttributeSet copyAttributes()
+  {
+    return (AttributeSet) clone();
+  }
+
+  public boolean equals(Object obj)
+  {
+    return (obj != null) 
+      && (obj instanceof SimpleAttributeSet)
+      && ((SimpleAttributeSet)obj).tab.equals(this.tab);
+  }
+
+  public Object getAttribute(Object name)
+  {
+    Object val = tab.get(name);
+    if (val != null) 
+      return val;
+
+    Object p = getResolveParent();
+    if (p != null && p instanceof AttributeSet)
+      return (((AttributeSet)p).getAttribute(name));
+
+    return null;
+  }
+
+  public int getAttributeCount()
+  {
+    return tab.size();
+  }
+
+  public Enumeration getAttributeNames()
+  {
+    return tab.keys();
+  }
+
+  public AttributeSet getResolveParent()
+  {
+    return (AttributeSet) tab.get(ResolveAttribute);
+  }
+
+  public int hashCode()
+  {
+    return tab.hashCode();
+  }
+
+  public boolean isDefined(Object attrName)
+  {
+    return tab.containsKey(attrName);
+  }
+
+  public boolean isEmpty()
+  {
+    return tab.isEmpty();	
+  }
+        
+  public boolean isEqual(AttributeSet attr)
+  {
+    return this.equals(attr);
+  }
+    
+  public void removeAttribute(Object name)
+  {
+    tab.remove(name);
+  }
+
+  public void removeAttributes(AttributeSet attributes)
+  {
+    removeAttributes(attributes.getAttributeNames());
+  }
+
+  public void removeAttributes(Enumeration names)
+  {
+    while (names.hasMoreElements())
+      {
+        removeAttribute(names.nextElement());
+      }	
+  }
+
+  public void setResolveParent(AttributeSet parent)
+  {
+    addAttribute(ResolveAttribute, parent);
+  }
+    
+  public String toString()
+  {
+    return tab.toString();
+  }    
+}