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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
/* $Id$ */
package org.apache.fop.layoutmgr;
import org.apache.fop.datatypes.Numeric;
/**
* This interface is implemented by top-level layout managers such as the ones for fo:page-sequence
* and fox:external-document.
*/
public interface TopLevelLayoutManager {
/**
* Activate the layout of this page sequence.
* PageViewports corresponding to each page generated by this
* page sequence will be created and sent to the AreaTreeModel
* for rendering.
*/
public void activateLayout();
/**
* Act upon the force-page-count trait,
* in relation to the initial-page-number trait of the following page-sequence.
* @param nextPageSeqInitialPageNumber initial-page-number trait of next page-sequence
*/
public void doForcePageCount(Numeric nextPageSeqInitialPageNumber);
/**
* Finished the page-sequence and notifies everyone about it.
*/
public void finishPageSequence();
}
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