| /* |
| * 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; |
| } |
| |
| } |