/**
* ===========================================
* 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: BoxAlignContext.java 3524 2007-10-16 11:26:31Z tmorgner $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.renderer.process.valign;
import org.jfree.layouting.input.style.values.CSSValue;
import org.jfree.layouting.renderer.model.RenderBox;
import org.jfree.layouting.renderer.model.StaticBoxLayoutProperties;
import org.jfree.layouting.renderer.model.ComputedLayoutProperties;
import org.jfree.layouting.renderer.text.ExtendedBaselineInfo;
import org.jfree.layouting.renderer.text.TextUtility;
/**
* Creation-Date: 13.10.2006, 22:22:10
*
* @author Thomas Morgner
*/
public class BoxAlignContext extends AlignContext
{
private long insetsTop;
private long insetsBottom;
private long[] baselines;
private AlignContext firstChild;
private AlignContext lastChild;
public BoxAlignContext(final RenderBox box)
{
super(box);
ExtendedBaselineInfo baselineInfo = box.getBaselineInfo();
if (baselineInfo == null)
{
baselineInfo = box.getNominalBaselineInfo();
}
final CSSValue dominantBaselineValue = box.getDominantBaseline();
setDominantBaseline(TextUtility.translateDominantBaseline
(dominantBaselineValue, baselineInfo.getDominantBaseline()));
final ComputedLayoutProperties blp = box.getComputedLayoutProperties();
insetsTop = blp.getBorderTop() + blp.getPaddingTop();
insetsBottom = blp.getBorderBottom() + blp.getPaddingBottom();
baselines = (long[]) baselineInfo.getBaselines().clone();
for (int i = 1; i < baselines.length; i++)
{
baselines[i] += insetsTop;
}
baselines[ExtendedBaselineInfo.AFTER_EDGE] =
baselines[ExtendedBaselineInfo.TEXT_AFTER_EDGE] + insetsBottom;
}
public void addChild(final AlignContext context)
{
if (lastChild == null)
{
firstChild = context;
lastChild = context;
return;
}
lastChild.setNext(context);
lastChild = context;
}
public AlignContext getFirstChild()
{
return firstChild;
}
public long getInsetsTop()
{
return insetsTop;
}
public long getInsetsBottom()
{
return insetsBottom;
}
public long getBaselineDistance(final int baseline)
{
return baselines[baseline] - baselines[getDominantBaseline()];
}
public void shift(final long delta)
{
for (int i = 0; i < baselines.length; i++)
{
baselines[i] += delta;
}
AlignContext child = getFirstChild();
while (child != null)
{
child.shift(delta);
child = child.getNext();
}
}
public long getAfterEdge()
{
return this.baselines[ExtendedBaselineInfo.AFTER_EDGE];
}
public long getBeforeEdge()
{
return this.baselines[ExtendedBaselineInfo.BEFORE_EDGE];
}
public void setBeforeEdge(final long offset)
{
this.baselines[ExtendedBaselineInfo.BEFORE_EDGE] = offset;
}
public void setAfterEdge(final long offset)
{
this.baselines[ExtendedBaselineInfo.AFTER_EDGE] = offset;
}
}