/**
* ===========================================
* 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: ContentStore.java 6653 2008-12-02 14:53:40Z tmorgner $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.renderer;
import org.jfree.layouting.input.style.keys.page.PagePolicy;
import org.jfree.layouting.input.style.values.CSSValue;
import org.jfree.layouting.renderer.model.RenderNode;
/**
* For the first throw, the content ramins very simple. We support the 4 modes:
* start - the initial content is used. first - the first value set in this page
* is used (else the initial content) last - the last value is used. last-except
* - the last value is used on the next page. (Contrary to the specification, we
* fall back to the start-value instead of using an empty value).
*
* @author Thomas Morgner
*/
public class ContentStore extends AbstractStore
{
public ContentStore()
{
}
public void add(final String name, final RenderNode[] value)
{
super.addInternal(name, value);
}
public RenderNode[] get(final String name)
{
return get(name, PagePolicy.LAST);
}
public RenderNode[] get(final String name, final CSSValue pagePolicy)
{
if (PagePolicy.START.equals(pagePolicy))
{
final RenderNode[] initial = (RenderNode[]) getInitialInternal(name);
if (initial == null)
{
return null;
}
return deriveRetval(initial);
}
else if (PagePolicy.FIRST.equals(pagePolicy))
{
final RenderNode[] first = (RenderNode[]) getFirstInternal(name);
if (first == null)
{
return null;
}
return deriveRetval(first);
}
else
{
final RenderNode[] last = (RenderNode[]) getLastInternal(name);
if (last == null)
{
return null;
}
return deriveRetval(last);
}
}
private RenderNode[] deriveRetval(final RenderNode[] val)
{
if (val == null)
{
return new RenderNode[0];
}
final RenderNode[] reval = new RenderNode[val.length];
for (int i = 0; i < val.length; i++)
{
final RenderNode node = val[i];
reval[i] = node.derive(true);
}
return val;
}
}