/**
* ===========================================
* 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: ReplacedContentSequenceElement.java 6653 2008-12-02 14:53:40Z tmorgner $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.renderer.process.layoutrules;
import org.jfree.layouting.renderer.border.RenderLength;
import org.jfree.layouting.renderer.model.RenderNode;
import org.jfree.layouting.renderer.model.RenderableReplacedContent;
import org.jfree.layouting.util.geom.StrictDimension;
/**
* 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
{
private RenderableReplacedContent node;
private long width;
public ReplacedContentSequenceElement(final RenderableReplacedContent node)
{
this.node = node;
final StrictDimension contentSize = node.getContentSize();
if (RenderLength.AUTO.equals(node.getRequestedWidth()))
{
// if width is auto, and height is auto,
if (RenderLength.AUTO.equals(node.getRequestedHeight()))
{
// use the intrinsic width ..
width = contentSize.getWidth();
}
// if height is not auto, but the width is, then compute a width that
// preserves the aspect ratio.
else if (contentSize.getHeight() > 0)
{
final RenderLength blockContextWidth =
node.getComputedLayoutProperties().getBlockContextWidth();
final long height =
node.getRequestedHeight().resolve(blockContextWidth.resolve(0));
width = height * contentSize.getWidth() / contentSize.getHeight();
}
else
{
width = 0;
}
}
else
{
final RenderLength blockContextWidth =
node.getComputedLayoutProperties().getBlockContextWidth();
// width is not auto.
width = node.getRequestedWidth().resolve(blockContextWidth.resolve(0));
}
}
/**
* The width of the element. This is the minimum width of the element.
*
* @return
*/
public long getMinimumWidth()
{
return width;
}
/**
* 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()
{
return Math.max (width, node.getMaximumBoxWidth());
}
public RenderNode getNode()
{
return node;
}
public boolean isPreserveWhitespace()
{
return false;
}
}