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/**
* ===========================================
* LibLayout : a free Java layouting library
* ===========================================
*
* Project Info: http://reporting.pentaho.org/liblayout/
*
* (C) Copyright 2006-2007, by Pentaho Corporation and Contributors.
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------
* $Id: NumericCounterStyle.java 3524 2007-10-16 11:26:31Z tmorgner $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.layouter.counters.numeric;
import java.util.HashSet;
import org.jfree.layouting.layouter.counters.CounterStyle;
public abstract class NumericCounterStyle implements CounterStyle
{
private static final class ReplacementDefinition
{
private char original;
private char replacement;
private ReplacementDefinition (final char original, final char replacement)
{
this.original = original;
this.replacement = replacement;
}
public char getOriginal ()
{
return original;
}
public char getReplacement ()
{
return replacement;
}
public boolean equals (final Object o)
{
if (this == o)
{
return true;
}
if (o == null || getClass() != o.getClass())
{
return false;
}
final ReplacementDefinition that = (ReplacementDefinition) o;
if (original != that.original)
{
return false;
}
return true;
}
public int hashCode ()
{
return (int) original;
}
}
private HashSet replacements;
private int base;
private transient ReplacementDefinition[] cachedDefinitions;
private String suffix;
protected NumericCounterStyle (final int base, final String suffix)
{
this.base = base;
this.suffix = suffix;
this.replacements = new HashSet();
}
public final void setReplacementChar (final char org, final char other)
{
this.replacements.add (new ReplacementDefinition(org, other));
this.cachedDefinitions = null;
}
public final String getCounterValue (final int index)
{
if (cachedDefinitions == null)
{
cachedDefinitions = (ReplacementDefinition[])
replacements.toArray(new ReplacementDefinition[replacements.size()]);
}
String numeric = Integer.toString(index, base);
for (int i = 0; i < cachedDefinitions.length; i++)
{
final ReplacementDefinition def = cachedDefinitions[i];
numeric = numeric.replace(def.getOriginal(), def.getReplacement());
}
return numeric;
}
public String getSuffix()
{
return suffix;
}
}
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