/*!
* 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.box;
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.CSSAutoValue;
import org.pentaho.reporting.libraries.css.values.CSSNumericType;
import org.pentaho.reporting.libraries.css.values.CSSNumericValue;
import org.pentaho.reporting.libraries.css.values.CSSRectangleType;
import org.pentaho.reporting.libraries.css.values.CSSRectangleValue;
import org.pentaho.reporting.libraries.css.values.CSSValue;
import org.w3c.css.sac.LexicalUnit;
/**
* Creation-Date: 28.11.2005, 15:36:05
*
* @author Thomas Morgner
*/
public class CropReadHandler implements CSSValueReadHandler {
public CropReadHandler() {
}
public CSSValue createValue( StyleKey name, LexicalUnit value ) {
if ( value.getLexicalUnitType() == LexicalUnit.SAC_IDENT ) {
final String stringValue = value.getStringValue();
if ( stringValue.equalsIgnoreCase( "auto" ) ||
stringValue.equalsIgnoreCase( "none" ) ) {
return CSSAutoValue.getInstance();
}
} else if ( value.getLexicalUnitType() == LexicalUnit.SAC_FUNCTION ) {
if ( value.getFunctionName().equalsIgnoreCase( "inset-rect" ) ) {
return getRectangle( CSSRectangleType.INSET_RECT, value.getParameters() );
}
return null;
} else if ( value.getLexicalUnitType() == LexicalUnit.SAC_RECT_FUNCTION ) {
return getRectangle( CSSRectangleType.RECT, value.getParameters() );
}
return null;
}
private static CSSRectangleValue getRectangle
( CSSRectangleType type, LexicalUnit value ) {
final CSSNumericValue[] list = new CSSNumericValue[ 4 ];
for ( int index = 0; index < 4; index++ ) {
if ( value == null ) {
return null;
}
CSSNumericValue nval = CSSValueFactory.createLengthValue( value );
if ( nval != null ) {
list[ index ] = nval;
} else if ( value.getLexicalUnitType() == LexicalUnit.SAC_PERCENTAGE ) {
list[ index ] = CSSNumericValue.createValue( CSSNumericType.PERCENTAGE, value.getFloatValue() );
} else {
return null;
}
value = CSSValueFactory.parseComma( value );
}
return new CSSRectangleValue( type, list[ 0 ], list[ 1 ], list[ 2 ], list[ 3 ] );
}
}