/**
* ===========================================
* 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: XAlternateTextReadHandler.java 6653 2008-12-02 14:53:40Z tmorgner $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.input.style.parser.stylehandler.content;
import java.util.ArrayList;
import org.jfree.layouting.input.style.StyleKey;
import org.jfree.layouting.input.style.parser.CSSValueFactory;
import org.jfree.layouting.input.style.parser.CSSValueReadHandler;
import org.jfree.layouting.input.style.values.CSSAttrFunction;
import org.jfree.layouting.input.style.values.CSSConstant;
import org.jfree.layouting.input.style.values.CSSFunctionValue;
import org.jfree.layouting.input.style.values.CSSStringValue;
import org.jfree.layouting.input.style.values.CSSValue;
import org.jfree.layouting.input.style.values.CSSValueList;
import org.w3c.css.sac.LexicalUnit;
/**
* Creation-Date: 30.05.2006, 14:56:09
*
* @author Thomas Morgner
*/
public class XAlternateTextReadHandler implements CSSValueReadHandler
{
public XAlternateTextReadHandler()
{
}
public CSSValue createValue(final StyleKey name, LexicalUnit value)
{
final ArrayList contents = new ArrayList();
final ArrayList contentList = new ArrayList();
while (value != null)
{
if (value.getLexicalUnitType() == LexicalUnit.SAC_IDENT)
{
return null;
}
else if (value.getLexicalUnitType() == LexicalUnit.SAC_STRING_VALUE)
{
contentList.add(new CSSConstant(value.getStringValue()));
}
else if (value.getLexicalUnitType() == LexicalUnit.SAC_URI)
{
final CSSStringValue uriValue = CSSValueFactory.createUriValue(value);
if (uriValue == null)
{
return null;
}
contentList.add(uriValue);
}
else if (value.getLexicalUnitType() == LexicalUnit.SAC_FUNCTION ||
value.getLexicalUnitType() == LexicalUnit.SAC_COUNTER_FUNCTION ||
value.getLexicalUnitType() == LexicalUnit.SAC_COUNTERS_FUNCTION)
{
final CSSFunctionValue functionValue =
CSSValueFactory.parseFunction(value);
if (functionValue == null)
{
return null;
}
contentList.add(functionValue);
}
else if (value.getLexicalUnitType() == LexicalUnit.SAC_ATTR)
{
final CSSAttrFunction attrFn = CSSValueFactory.parseAttrFunction(value);
if (attrFn == null)
{
return null;
}
contentList.add(attrFn);
}
else if (value.getLexicalUnitType() == LexicalUnit.SAC_OPERATOR_COMMA)
{
final CSSValue[] values =
(CSSValue[]) contentList.toArray(
new CSSValue[contentList.size()]);
final CSSValueList sequence = new CSSValueList(values);
contents.add(sequence);
}
value = value.getNextLexicalUnit();
}
final CSSValue[] values =
(CSSValue[]) contentList.toArray(new CSSValue[contentList.size()]);
final CSSValueList sequence = new CSSValueList(values);
contents.add(sequence);
return new CSSValueList(contents);
}
}