/**
* ===========================================
* 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: BackgroundSizeReadHandler.java 6653 2008-12-02 14:53:40Z tmorgner $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.input.style.parser.stylehandler.border;
import java.util.ArrayList;
import org.jfree.layouting.input.style.StyleKey;
import org.jfree.layouting.input.style.keys.border.BackgroundSize;
import org.jfree.layouting.input.style.parser.CSSValueFactory;
import org.jfree.layouting.input.style.parser.CSSValueReadHandler;
import org.jfree.layouting.input.style.values.CSSAutoValue;
import org.jfree.layouting.input.style.values.CSSNumericType;
import org.jfree.layouting.input.style.values.CSSNumericValue;
import org.jfree.layouting.input.style.values.CSSValue;
import org.jfree.layouting.input.style.values.CSSValueList;
import org.w3c.css.sac.LexicalUnit;
/**
* Creation-Date: 26.11.2005, 18:29:10
*
* @author Thomas Morgner
*/
public class BackgroundSizeReadHandler implements CSSValueReadHandler
{
public BackgroundSizeReadHandler()
{
}
private CSSValueList createList (final CSSValue first,
final CSSValue second,
final CSSValue third)
{
return new CSSValueList(new CSSValue[]{first, second, third});
}
public CSSValue createValue(final StyleKey name, LexicalUnit value)
{
final ArrayList values = new ArrayList();
while (value != null)
{
final CSSValue firstValue;
if (value.getLexicalUnitType() == LexicalUnit.SAC_IDENT)
{
if ("round".equalsIgnoreCase(value.getStringValue()))
{
values.add(createList(CSSAutoValue.getInstance(),
CSSAutoValue.getInstance(),
BackgroundSize.ROUND));
value = CSSValueFactory.parseComma(value);
continue;
}
if ("auto".equalsIgnoreCase(value.getStringValue()))
{
firstValue = CSSAutoValue.getInstance();
}
else
{
return null;
}
}
else if (value.getLexicalUnitType() == LexicalUnit.SAC_PERCENTAGE)
{
firstValue = CSSNumericValue.createValue(CSSNumericType.PERCENTAGE, value.getFloatValue());
}
else
{
firstValue = CSSValueFactory.createLengthValue(value);
if (firstValue == null)
{
return null;
}
}
value = value.getNextLexicalUnit();
if (value == null)
{
values.add(createList(firstValue,
CSSAutoValue.getInstance(),
BackgroundSize.ROUND));
continue;
}
final CSSValue secondValue;
if (value.getLexicalUnitType() == LexicalUnit.SAC_IDENT)
{
if ("round".equalsIgnoreCase(value.getStringValue()))
{
values.add(createList(firstValue,
CSSAutoValue.getInstance(),
BackgroundSize.ROUND));
value = CSSValueFactory.parseComma(value);
continue;
}
else if ("auto".equalsIgnoreCase(value.getStringValue()))
{
secondValue = CSSAutoValue.getInstance();
}
else
{
return null;
}
}
else if (value.getLexicalUnitType() == LexicalUnit.SAC_OPERATOR_COMMA)
{
values.add(createList(firstValue,
CSSAutoValue.getInstance(),
BackgroundSize.ROUND));
value = value.getNextLexicalUnit();
continue;
}
else if (value.getLexicalUnitType() == LexicalUnit.SAC_PERCENTAGE)
{
secondValue = CSSNumericValue.createValue(CSSNumericType.PERCENTAGE, value.getFloatValue());
}
else
{
secondValue = CSSValueFactory.createLengthValue(value);
if (secondValue == null)
{
return null;
}
}
value = value.getNextLexicalUnit();
if (value == null)
{
values.add(createList(firstValue,
secondValue,
BackgroundSize.NO_ROUND));
}
else if (value.getLexicalUnitType() == LexicalUnit.SAC_OPERATOR_COMMA)
{
values.add(createList(firstValue,
secondValue,
BackgroundSize.NO_ROUND));
value = value.getNextLexicalUnit();
}
else if (value.getLexicalUnitType() == LexicalUnit.SAC_IDENT)
{
if ("round".equalsIgnoreCase(value.getStringValue()) == false)
{
return null;
}
values.add(createList(firstValue,
secondValue,
BackgroundSize.ROUND));
value = CSSValueFactory.parseComma(value);
}
else
{
return null;
}
}
return new CSSValueList(values);
}
}