Package org.pentaho.reporting.engine.classic.core.layout.process.layoutrules

Source Code of org.pentaho.reporting.engine.classic.core.layout.process.layoutrules.ReplacedContentSequenceElement

/*
* 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) 2001 - 2009 Object Refinery Ltd, Pentaho Corporation and Contributors..  All rights reserved.
*/

package org.pentaho.reporting.engine.classic.core.layout.process.layoutrules;

import org.pentaho.reporting.engine.classic.core.layout.model.RenderNode;
import org.pentaho.reporting.engine.classic.core.layout.model.RenderableReplacedContentBox;
import org.pentaho.reporting.engine.classic.core.layout.process.ReplacedContentUtil;


/**
* Anthing that is not text. This could be an image or an inline-block element. For now, we assume that these beasts are
* not breakable at the end of the line (outer linebreaks).
*
* @author Thomas Morgner
*/
public class ReplacedContentSequenceElement implements InlineSequenceElement
{
  public static final InlineSequenceElement INSTANCE = new ReplacedContentSequenceElement();

  private ReplacedContentSequenceElement()
  {
  }

  /**
   * The width of the element. This is the minimum width of the element.
   *
   * @return
   */
  public long getMinimumWidth(final RenderNode node)
  {
    final RenderableReplacedContentBox rpc = (RenderableReplacedContentBox) node;
    return ReplacedContentUtil.computeWidth(rpc);
  }

  /**
   * The extra-space width for an element. Some elements can expand to fill some more space (justified text is a good
   * example, adding some space between the letters of each word to reduce the inner-word spacing).
   *
   * @return
   */
  public long getMaximumWidth(final RenderNode node)
  {
    final RenderableReplacedContentBox rpc = (RenderableReplacedContentBox) node;
    final long width = ReplacedContentUtil.computeWidth(rpc);
    return Math.max(width, node.getMaximumBoxWidth());
  }

  public boolean isPreserveWhitespace(final RenderNode node)
  {
    return false;
  }

  public int getClassification()
  {
    return CONTENT;
  }

}
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