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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.fo.Constants;
- import org.apache.fop.fo.properties.BreakPropertySet;
- import org.apache.fop.util.BreakUtil;
-
- /**
- * Helper implementations of the {@link BreakOpportunity} methods.
- */
- public final class BreakOpportunityHelper {
-
- private BreakOpportunityHelper() { }
-
- /**
- * Returns the break opportunity before the given layout manager. There is a break
- * opportunity if the LM's FO has the break-before property set, or if there is a
- * break opportunity before its first child LM.
- *
- * @return the break-before value (Constants.EN_*)
- */
- public static int getBreakBefore(AbstractLayoutManager layoutManager) {
- int breakBefore = Constants.EN_AUTO;
- if (layoutManager.getFObj() instanceof BreakPropertySet) {
- breakBefore = ((BreakPropertySet) layoutManager.getFObj()).getBreakBefore();
- }
- LayoutManager childLM = layoutManager.getChildLM();
- // It is assumed this is only called when the first LM is active.
- if (childLM instanceof BreakOpportunity) {
- BreakOpportunity bo = (BreakOpportunity) childLM;
- breakBefore = BreakUtil.compareBreakClasses(breakBefore, bo.getBreakBefore());
- }
- return breakBefore;
- }
-
- }
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