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/*
* Copyright 2004-2005 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.
*/
/* $Id$ */
package org.apache.fop.layoutmgr.inline;
import java.util.List;
import org.apache.fop.layoutmgr.LayoutManager;
import org.apache.fop.layoutmgr.Position;
/**
* The interface for LayoutManagers which generate inline areas
*/
public interface InlineLevelLayoutManager extends LayoutManager {
/**
* Tell the LM to modify its data, adding a letter space
* to the word fragment represented by the given elements,
* and returning the corrected elements
*
* @param oldList the elements which must be given one more letter space
* @return the new elements replacing the old ones
*/
List addALetterSpaceTo(List oldList);
/**
* Tell the LM to modify its data, removing the word space
* represented by the given elements
*
* @param oldList the elements representing the word space
*/
void removeWordSpace(List oldList);
/**
* Get the word chars corresponding to the given position
*
* @param sbChars the StringBuffer used to append word chars
* @param pos the Position referring to the needed word chars
*/
void getWordChars(StringBuffer sbChars, Position pos);
/**
* Tell the LM to hyphenate a word
*
* @param pos the Position referring to the word
* @param hc the HyphContext storing hyphenation information
*/
void hyphenate(Position pos, HyphContext hc);
/**
* Tell the LM to apply the changes due to hyphenation
*
* @param oldList the list of the old elements the changes refer to
* @return true if the LM had to change its data, false otherwise
*/
boolean applyChanges(List oldList);
}
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