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/*
* $Id$
* Copyright (C) 2001 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.flow.*;
import org.apache.fop.fo.properties.*;
import org.apache.fop.layout.AreaTree;
import org.apache.fop.apps.FOPException;
import org.apache.fop.extensions.ExtensionObj;
// Java
import java.util.Vector;
import java.util.Enumeration;
/**
* The fo:root formatting object. Contains page masters, root extensions,
* page-sequences.
*/
public class Root extends FObj {
public static class Maker extends FObj.Maker {
public FObj make(FObj parent,
PropertyList propertyList) throws FOPException {
return new Root(parent, propertyList);
}
}
public static FObj.Maker maker() {
return new Root.Maker();
}
LayoutMasterSet layoutMasterSet;
Vector pageSequences;
/**
* keeps count of page number from over PageSequence instances
*/
private int runningPageNumberCounter = 0;
protected Root(FObj parent,
PropertyList propertyList) throws FOPException {
super(parent, propertyList);
this.name = "fo:root";
// this.properties.get("media-usage");
pageSequences = new Vector();
if (parent != null) {
throw new FOPException("root must be root element");
}
}
protected int getRunningPageNumberCounter() {
return this.runningPageNumberCounter;
}
protected void setRunningPageNumberCounter(int count) {
this.runningPageNumberCounter = count;
}
/**
* @deprecated handled by addChild now
*/
public void addPageSequence(PageSequence pageSequence) {
this.pageSequences.addElement(pageSequence);
}
public int getPageSequenceCount() {
return pageSequences.size();
}
/**
* Some properties, such as 'force-page-count', require a
* page-sequence to know about some properties of the next.
* @returns succeeding PageSequence; null if none
*/
public PageSequence getSucceedingPageSequence(PageSequence current) {
int currentIndex = pageSequences.indexOf(current);
if (currentIndex == -1)
return null;
if (currentIndex < (pageSequences.size() - 1)) {
return (PageSequence)pageSequences.elementAt(currentIndex + 1);
} else {
return null;
}
}
public LayoutMasterSet getLayoutMasterSet() {
return this.layoutMasterSet;
}
public void setLayoutMasterSet(LayoutMasterSet layoutMasterSet) {
this.layoutMasterSet = layoutMasterSet;
}
/*
public void format(AreaTree areaTree) throws FOPException {
// log.debug(" Root[" + marker + "] ");
if (layoutMasterSet == null) {
throw new FOPException("No layout master set.");
}
Enumeration e = children.elements();
while (e.hasMoreElements()) {
Object o = e.nextElement();
if (o instanceof PageSequence) {
((PageSequence)o).format(areaTree);
} else if (o instanceof ExtensionObj) {
((ExtensionObj)o).format(areaTree);
}
}
}
*/
}
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