| /* |
| * 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.properties.KeepProperty; |
| |
| /** |
| * The interface for LayoutManagers which generate block areas |
| */ |
| public interface BlockLevelLayoutManager extends LayoutManager { |
| |
| /** |
| * Negotiate BPD adjustment. |
| * @param adj amount to adjust |
| * @param lastElement the last knuth element |
| * @return the resulting adjusted BPD |
| */ |
| int negotiateBPDAdjustment(int adj, KnuthElement lastElement); |
| |
| /** |
| * Discard space. |
| * @param spaceGlue the space |
| */ |
| void discardSpace(KnuthGlue spaceGlue); |
| |
| /** |
| * Returns the keep-together strength for this element. |
| * @return the keep-together strength |
| */ |
| Keep getKeepTogether(); |
| |
| /** |
| * @return true if this element must be kept together |
| */ |
| boolean mustKeepTogether(); |
| |
| /** |
| * Returns the keep-with-previous strength for this element. |
| * @return the keep-with-previous strength |
| */ |
| Keep getKeepWithPrevious(); |
| |
| /** |
| * @return true if this element must be kept with the previous element. |
| */ |
| boolean mustKeepWithPrevious(); |
| |
| /** |
| * Returns the keep-with-next strength for this element. |
| * @return the keep-with-next strength |
| */ |
| Keep getKeepWithNext(); |
| |
| /** |
| * @return true if this element must be kept with the next element. |
| */ |
| boolean mustKeepWithNext(); |
| |
| /** |
| * Returns the keep-together property specified on the FObj. |
| * @return the keep-together property |
| */ |
| KeepProperty getKeepTogetherProperty(); |
| |
| /** |
| * Returns the keep-with-previous property specified on the FObj. |
| * @return the keep-together property |
| */ |
| KeepProperty getKeepWithPreviousProperty(); |
| |
| /** |
| * Returns the keep-with-next property specified on the FObj. |
| * @return the keep-together property |
| */ |
| KeepProperty getKeepWithNextProperty(); |
| } |