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/*
* $Id$
* Copyright (C) 2001-2002 The Apache Software Foundation. All rights reserved.
* For details on use and redistribution please refer to the
* LICENSE file included with these sources.
*/
package org.apache.fop.fo.pagination;
// FOP
import org.apache.fop.fo.*;
import org.apache.fop.fo.properties.WritingMode;
// Java
import java.awt.Rectangle;
public abstract class RegionSE extends RegionBASE {
protected RegionSE(FONode parent) {
super(parent);
}
/**
* Adjust the viewport reference rectangle for a region as a function
* of precedence.
* If before and after have precedence = true, the start and end
* regions only go to the limits of their extents, otherwise
* they extend in the BPD to the page reference rectangle
* diminish by extend of start and end if present.
*/
protected void adjustIPD(Rectangle refRect, int wm) {
int offset = 0;
Region before = getSiblingRegion(Region.BEFORE);
if (before != null && before.getPrecedence()) {
offset = before.getExtent();
refRect.translate(0, offset);
}
Region after = getSiblingRegion(Region.AFTER);
if (after != null && after.getPrecedence()) {
offset += after.getExtent();
}
if (offset > 0) {
if (wm == WritingMode.LR_TB || wm == WritingMode.RL_TB)
refRect.height-=offset;
else
refRect.width-=offset;
}
}
}
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