/*
* 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) 2006 - 2013 Pentaho Corporation and Contributors. All rights reserved.
*/
package org.pentaho.reporting.libraries.css.resolver.values.computed;
import org.pentaho.reporting.libraries.css.dom.LayoutElement;
import org.pentaho.reporting.libraries.css.dom.DocumentContext;
import org.pentaho.reporting.libraries.css.values.CSSValue;
import org.pentaho.reporting.libraries.css.values.CSSValueList;
import org.pentaho.reporting.libraries.css.values.CSSConstant;
import org.pentaho.reporting.libraries.css.model.StyleKey;
import org.pentaho.reporting.libraries.base.util.DebugLog;
/**
* Creation-Date: 14.12.2005, 23:08:14
*
* @author Thomas Morgner
*/
public abstract class ListOfConstantsResolveHandler extends ConstantsResolveHandler
{
public ListOfConstantsResolveHandler()
{
}
/**
* Resolves a single property.
*
* @param currentNode
* @param style
*/
public void resolve(final DocumentContext process,
final LayoutElement currentNode,
final StyleKey key)
{
final CSSValue value = currentNode.getLayoutStyle().getValue(key);
if (value == null)
{
return;
}
if (value instanceof CSSValueList == false)
{
return;
}
final CSSValueList list = (CSSValueList) value;
final int length = list.getLength();
if (length == 0)
{
return;
}
for (int i = 0; i < length; i++)
{
final CSSValue item = list.getItem(i);
if (item instanceof CSSConstant == false)
{
resolveInvalidItem(process, currentNode, key, i);
}
else
{
resolveItem(process, currentNode, key, i, (CSSConstant) item);
}
}
}
protected void resolveInvalidItem (final DocumentContext process,
final LayoutElement currentNode,
final StyleKey key,
final int index)
{
DebugLog.log ("Encountered invalid item in Style " + key + " at index " + index);
}
protected abstract boolean resolveItem(final DocumentContext process,
LayoutElement currentNode,
StyleKey key,
int index,
CSSConstant item);
}