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/*
* $Id: Block.java,v 1.12 2003/03/05 15:19:31 jeremias Exp $
* ============================================================================
* The Apache Software License, Version 1.1
* ============================================================================
*
* Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modifica-
* tion, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The end-user documentation included with the redistribution, if any, must
* include the following acknowledgment: "This product includes software
* developed by the Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself, if
* and wherever such third-party acknowledgments normally appear.
*
* 4. The names "FOP" and "Apache Software Foundation" must not be used to
* endorse or promote products derived from this software without prior
* written permission. For written permission, please contact
* apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache", nor may
* "Apache" appear in their name, without prior written permission of the
* Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
* DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ============================================================================
*
* This software consists of voluntary contributions made by many individuals
* on behalf of the Apache Software Foundation and was originally created by
* James Tauber <jtauber@jtauber.com>. For more information on the Apache
* Software Foundation, please see <http://www.apache.org/>.
*/
package org.apache.fop.area;
import java.util.ArrayList;
// block areas hold either more block areas or line
// areas can also be used as a block spacer
// a block area may have children positioned by stacking
// or by relative to the parent for floats, tables and lists
// cacheable object
// has id information
/**
* This is the block area class.
* It holds child block areas such as other blocks or lines.
*/
public class Block extends BlockParent {
/**
* Normally stacked with other blocks.
*/
public static final int STACK = 0;
/**
* Placed relative to the flow position.
* This effects the flow placement of stacking normally.
*/
public static final int RELATIVE = 1;
/**
* Relative to the block parent but not effecting the stacking
* Used for block-container, tables and lists.
*/
public static final int ABSOLUTE = 2;
private int stacking = TB;
private int positioning = STACK;
// a block with may contain the dominant styling info in
// terms of most lines or blocks with info
/**
* Add the block to this block area.
*
* @param block the block area to add
*/
public void addBlock(Block block) {
if (children == null) {
children = new ArrayList();
}
height += block.getHeight();
children.add(block);
}
/**
* Add the line area to this block area.
*
* @param line the line area to add
*/
public void addLineArea(LineArea line) {
if (children == null) {
children = new ArrayList();
}
height += line.getHeight();
children.add(line);
}
/**
* Set the positioning of this area.
*
* @param pos the positioning to use when rendering this area
*/
public void setPositioning(int pos) {
positioning = pos;
}
/**
* Get the positioning of this area.
*
* @return the positioning to use when rendering this area
*/
public int getPositioning() {
return positioning;
}
}
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