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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;
-
- /**
- * This is the super class for KnuthBox, KnuthGlue and KnuthPenalty.
- *
- * It stores information common to all sub classes, and the methods to get it:
- * the width, a Position and a boolean marking KnuthElements used for some
- * special feature (for example, the additional elements used to represent
- * a space when text alignment is right, left or center).
- */
- public abstract class KnuthElement extends ListElement {
-
- /** The value used as an infinite indicator. */
- public static final int INFINITE = 1000;
-
- private int width;
- private boolean auxiliary;
-
- /**
- * Creates a new <code>KnuthElement</code>.
- *
- * @param width the width of this element
- * @param pos the Position stored in this element
- * @param auxiliary is this an auxiliary element?
- */
- protected KnuthElement(int width, Position pos, boolean auxiliary) {
- super(pos);
- this.width = width;
- this.auxiliary = auxiliary;
- }
-
- /** @return true if this element is an auxiliary one. */
- public boolean isAuxiliary() {
- return auxiliary;
- }
-
- /** @return the width of this element. */
- public int getWidth() {
- return width;
- }
-
- /** @return the penalty value of this element, if applicable. */
- public int getPenalty() {
- throw new RuntimeException("Element is not a penalty");
- }
-
- /** @return the stretch value of this element, if applicable. */
- public int getStretch() {
- throw new RuntimeException("Element is not a glue");
- }
-
- /** @return the shrink value of this element, if applicable. */
- public int getShrink() {
- throw new RuntimeException("Element is not a glue");
- }
-
- /** {@inheritDoc} */
- public boolean isUnresolvedElement() {
- return false;
- }
-
- }
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