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/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id: MainReference.java,v 1.2 2004/02/27 17:41:26 jeremias Exp $ */
package org.apache.fop.area;
import java.util.List;
import java.util.Iterator;
/**
* The main body reference area.
* This area that contains the flow via the span areas.
*/
public class MainReference extends Area {
private List spanAreas = new java.util.ArrayList();
private int columnGap;
private int width;
private boolean isEmpty = true;
/**
* Add a span area to this area.
*
* @param span the span area to add
*/
public void addSpan(Span span) {
spanAreas.add(span);
}
/**
* Get the span areas from this area.
*
* @return the list of span areas
*/
public List getSpans() {
return spanAreas;
}
/**
* indicates whether any child areas have been added to this reference area
* this is achieved by looping through each span
*
* @return
*/
public boolean isEmpty() {
if (isEmpty) {
int areaCount = 0;
if (spanAreas != null) {
for (Iterator spaniter = spanAreas.iterator(); spaniter.hasNext(); ) {
Span spanArea = (Span) spaniter.next();
for (int i = 0; i < spanArea.getColumnCount(); i++) {
Flow flow = spanArea.getFlow(i);
if (flow != null) {
if (flow.getChildAreas() != null) {
areaCount += flow.getChildAreas().size();
}
}
}
}
}
isEmpty = (areaCount == 0);
}
return isEmpty;
}
/**
* Get the column gap in millipoints.
*
* @return the column gap in millioints
*/
public int getColumnGap() {
return columnGap;
}
/**
* Get the width of this reference area.
*
* @return the width
*/
public int getWidth() {
return width;
}
}
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