/*!
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.libraries.css.parser.stylehandler;
import java.util.ArrayList;
import org.pentaho.reporting.libraries.css.model.StyleKey;
import org.pentaho.reporting.libraries.css.parser.CSSValueFactory;
import org.pentaho.reporting.libraries.css.parser.CSSValueReadHandler;
import org.pentaho.reporting.libraries.css.values.CSSValue;
import org.pentaho.reporting.libraries.css.values.CSSValueList;
import org.w3c.css.sac.LexicalUnit;
/**
* Creation-Date: 26.11.2005, 19:16:43
*
* @author Thomas Morgner
*/
public abstract class ListOfValuesReadHandler implements CSSValueReadHandler
{
private int maxCount;
private boolean distinctValues;
protected ListOfValuesReadHandler()
{
maxCount = Integer.MAX_VALUE;
distinctValues = false;
}
protected ListOfValuesReadHandler(int maxCount, final boolean distinct)
{
this.maxCount = maxCount;
this.distinctValues = distinct;
}
public boolean isDistinctValues()
{
return distinctValues;
}
public int getMaxCount()
{
return maxCount;
}
public CSSValue createValue(StyleKey name, LexicalUnit value)
{
final ArrayList list = new ArrayList();
int count = 0;
while (value != null && count < maxCount)
{
final CSSValue pvalue = parseValue(value);
if (pvalue == null)
{
return null;
}
if (distinctValues == false ||
list.contains(pvalue) == false)
{
list.add(pvalue);
}
value = CSSValueFactory.parseComma(value);
count += 1;
}
return new CSSValueList(list);
}
protected abstract CSSValue parseValue(final LexicalUnit value);
}