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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.traits.MinOptMax;
-
- /**
- * This interface is used to notify layout managers about the situation around spaces, borders
- * and padding just before the addArea() method is called when a part is being painted.
- */
- public interface ConditionalElementListener {
-
- /**
- * Notifies the layout manager about the effective length of its space.
- * @param side the side to which the space applies
- * @param effectiveLength the effective length after space-resolution (null means zero length)
- */
- void notifySpace(RelSide side, MinOptMax effectiveLength);
-
- /**
- * Notifies the layout manager about the effective length/width of its border.
- * @param side the side to which the border applies
- * @param effectiveLength the effective length in the current break situation
- * (null means zero length)
- */
- void notifyBorder(RelSide side, MinOptMax effectiveLength);
-
- /**
- * Notifies the layout manager about the effective length/width of its padding.
- * @param side the side to which the padding applies
- * @param effectiveLength the effective length in the current break situation
- * (null means zero length)
- */
- void notifyPadding(RelSide side, MinOptMax effectiveLength);
-
- }
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