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/**
* ===========================================
* 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: CenterAlignmentProcessor.java 3524 2007-10-16 11:26:31Z tmorgner $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.renderer.process;
import org.jfree.layouting.renderer.process.layoutrules.InlineSequenceElement;
/**
* Right alignment strategy. Not working yet, as this is unimplemented right now.
*
* @author Thomas Morgner
*/
public class CenterAlignmentProcessor extends AbstractAlignmentProcessor
{
public CenterAlignmentProcessor()
{
}
protected int handleLayout(final int start,
final int count,
final int contentIndex,
final long usedWidth)
{
final InlineSequenceElement[] sequenceElements = getSequenceElements();
final long[] elementDimensions = getElementDimensions();
final long[] elementPositions = getElementPositions();
// if we reached that method, then this means, that the elements may fit
// into the available space. (Assuming that there is no inner pagebreak;
// a thing we do not handle yet)
final long totalWidth = getEndOfLine() - getStartOfLine();
final long emptySpace = (totalWidth - usedWidth);
long position = getStartOfLine() + emptySpace / 2;
for (int i = 0; i < sequenceElements.length; i++)
{
final long elementWidth = sequenceElements[i].getMaximumWidth();
elementDimensions[i] = elementWidth;
elementPositions[i] = position;
position += elementWidth;
}
return start + count;
}
}
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