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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: BlockRenderBox.java 2739 2007-04-02 11:41:22Z taqua $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.renderer.model;
/**
* A block box behaves according to the 'display:block' layouting rules. In the
* simplest case, all childs will consume the complete width and get stacked
* below each other.
* <p/>
* Live would be boring if everything was simple: Floats and absolutly
* positioned elements enrich and complicate the layout schema. Absolute
* elements do not affect the normal flow, but inject an invisible placeholder
* to keep track of their assumed normal-flow position.
* <p/>
* (Using Mozilla's behaviour as reference, I assume that absolutly positioned
* elements are controled from outside the normal-flow (ie. parallel to the
* normal flow, but positioned relative to their computed placeholder position
* inside the normal flow. Weird? yes!)
* <p/>
* Float-elements are positioned inside the block context and reduce the size of
* the linebox. Float-elements are positioned once when they are defined and
* will not alter any previously defined content.
* <p/>
* As floats from previous boxes may overlap with later boxes, all floats must
* be placed on a global storage. The only difference between absolutely
* positioned and floating elements is *where* they can be placed, and whether
* they influence the content under them. (Floats do, abs-pos dont).
*
* @author Thomas Morgner
*/
public class BlockRenderBox extends RenderBox
{
public BlockRenderBox(final BoxDefinition boxDefinition)
{
super(boxDefinition);
// hardcoded for now, content forms lines, which flow from top to bottom
// and each line flows horizontally (later with support for LTR and RTL)
// Major axis vertical means, all childs will be placed below each other
setMajorAxis(VERTICAL_AXIS);
// Minor axis horizontal: All childs may be shifted to the left or right
// to do some text alignment
setMinorAxis(HORIZONTAL_AXIS);
}
//
// /**
// * Returns the baseline info for the given node. This can be null, if the node
// * does not have any baseline info.
// *
// * @return
// */
// public ExtendedBaselineInfo getBaselineInfo()
// {
// long shift = getLeadingInsets(getMajorAxis()) + getLeadingSpace(getMajorAxis());
// RenderNode firstChild = getFirstChild();
// while (firstChild != null)
// {
// if (firstChild.isIgnorableForRendering() == false)
// {
// final ExtendedBaselineInfo baselineInfo = firstChild.getBaselineInfo();
// if (baselineInfo == null)
// {
// return null;
// }
//
// return baselineInfo.shift(shift);
// }
// firstChild = firstChild.getNext();
// }
// return null;
// }
}
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