/*!
 * 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.engine.classic.core.layout.process.util;

import org.pentaho.reporting.engine.classic.core.layout.model.FinishedRenderNode;
import org.pentaho.reporting.engine.classic.core.layout.model.RenderBox;

public class WidowPassThroughContext implements WidowContext {
  private StackedObjectPool<WidowPassThroughContext> pool;
  private WidowContext parent;

  public WidowPassThroughContext() {
  }

  public WidowContext getParent() {
    return parent;
  }

  public void init( final StackedObjectPool<WidowPassThroughContext> pool, final WidowContext parent ) {
    this.pool = pool;
    this.parent = parent;
  }

  public void startChild( final RenderBox box ) {
    if ( parent != null ) {
      parent.startChild( box );
    }
  }

  public void endChild( final RenderBox box ) {
    if ( parent != null ) {
      parent.endChild( box );
    }
  }

  public void registerFinishedNode( final FinishedRenderNode node ) {
    if ( parent != null ) {
      parent.registerFinishedNode( node );
    }
  }

  public void registerBreakMark( final RenderBox box ) {
    if ( parent != null ) {
      parent.registerBreakMark( box );
    }
  }

  public WidowContext commit( final RenderBox box ) {
    return parent;
  }

  public void subContextCommitted( final RenderBox contextBox ) {
    if ( parent != null ) {
      parent.subContextCommitted( contextBox );
    }
  }

  public void clearForPooledReuse() {
    parent = null;
    pool.free( this );
  }
}