/*!
* 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 java.util.HashMap;
import java.util.Map;
import org.pentaho.reporting.libraries.css.keys.box.BoxStyleKeys;
import org.pentaho.reporting.libraries.css.model.StyleKey;
import org.pentaho.reporting.libraries.css.parser.CSSCompoundValueReadHandler;
import org.pentaho.reporting.libraries.css.parser.stylehandler.AbstractWidthReadHandler;
import org.pentaho.reporting.libraries.css.values.CSSValue;
import org.w3c.css.sac.LexicalUnit;
/**
* Creation-Date: 27.11.2005, 19:07:11
*
* @author Thomas Morgner
*/
public class MarginReadHandler extends AbstractWidthReadHandler
implements CSSCompoundValueReadHandler
{
public MarginReadHandler()
{
super(true, true);
}
/**
* Parses the LexicalUnit and returns a map of (StyleKey, CSSValue) pairs.
*
* @param unit
* @return
*/
public Map createValues(LexicalUnit unit)
{
final CSSValue topWidth = parseWidth(unit);
if (topWidth == null)
{
return null;
}
unit = unit.getNextLexicalUnit();
final CSSValue rightWidth;
if (unit == null)
{
rightWidth = topWidth;
}
else
{
rightWidth = parseWidth(unit);
if (rightWidth == null)
{
return null;
}
unit = unit.getNextLexicalUnit();
}
final CSSValue bottomWidth;
if (unit == null)
{
bottomWidth = topWidth;
}
else
{
bottomWidth = parseWidth(unit);
if (bottomWidth == null)
{
return null;
}
unit = unit.getNextLexicalUnit();
}
final CSSValue leftWidth;
if (unit == null)
{
leftWidth = rightWidth;
}
else
{
leftWidth = parseWidth(unit);
if (leftWidth == null)
{
return null;
}
}
final Map map = new HashMap();
map.put(BoxStyleKeys.MARGIN_TOP, topWidth);
map.put(BoxStyleKeys.MARGIN_RIGHT, rightWidth);
map.put(BoxStyleKeys.MARGIN_BOTTOM, bottomWidth);
map.put(BoxStyleKeys.MARGIN_LEFT, leftWidth);
return map;
}
public StyleKey[] getAffectedKeys()
{
return new StyleKey[]{
BoxStyleKeys.MARGIN_TOP,
BoxStyleKeys.MARGIN_RIGHT,
BoxStyleKeys.MARGIN_BOTTOM,
BoxStyleKeys.MARGIN_LEFT
};
}
}