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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: AbstractWidthReadHandler.java 3524 2007-10-16 11:26:31Z tmorgner $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.input.style.parser.stylehandler;
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.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.w3c.css.sac.LexicalUnit;
/**
* Creation-Date: 27.11.2005, 21:16:17
*
* @author Thomas Morgner
*/
public abstract class AbstractWidthReadHandler implements CSSValueReadHandler
{
private boolean allowPercentages;
private boolean allowAuto;
protected AbstractWidthReadHandler(final boolean allowPercentages,
final boolean allowAuto)
{
this.allowPercentages = allowPercentages;
this.allowAuto = allowAuto;
}
public boolean isAllowPercentages()
{
return allowPercentages;
}
public boolean isAllowAuto()
{
return allowAuto;
}
public CSSValue createValue(final StyleKey name, final LexicalUnit value)
{
return parseWidth(value);
}
protected CSSValue parseWidth(final LexicalUnit value)
{
if (allowPercentages &&
value.getLexicalUnitType() == LexicalUnit.SAC_PERCENTAGE)
{
return CSSNumericValue.createValue(CSSNumericType.PERCENTAGE,
value.getFloatValue());
}
else if (allowAuto &&
value.getLexicalUnitType() == LexicalUnit.SAC_IDENT)
{
if ("auto".equalsIgnoreCase(value.getStringValue()))
{
return CSSAutoValue.getInstance();
}
return null;
}
else
{
return CSSValueFactory.createLengthValue(value);
}
}
}
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