| /* |
| * 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.area; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * A BlockParent holds block-level areas. |
| */ |
| public class BlockParent extends Area { |
| |
| private static final long serialVersionUID = 7076916890348533805L; |
| |
| // this position is used for absolute position |
| // or as an indent |
| // this has the size in the block progression dimension |
| |
| /** |
| * The x offset position of this block parent. |
| * Used for relative (serves as left-offset trait) and absolute positioning |
| * (serves as left-position trait). |
| */ |
| protected int xOffset; |
| |
| /** |
| * The y offset position of this block parent. |
| * Used for relative (serves as top-offset trait) and absolute positioning |
| * (serves as top-position trait). |
| */ |
| protected int yOffset; |
| |
| /** |
| * The children of this block parent area. |
| */ |
| protected List<Area> children; |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void addChildArea(Area childArea) { |
| if (children == null) { |
| children = new ArrayList<Area>(); |
| } |
| children.add(childArea); |
| } |
| |
| /** |
| * Add the block area to this block parent. |
| * |
| * @param block the child block area to add |
| */ |
| public void addBlock(Block block) { |
| addChildArea(block); |
| } |
| |
| /** |
| * Get the list of child areas for this block area. |
| * |
| * @return the list of child areas |
| */ |
| public List getChildAreas() { |
| return children; |
| } |
| |
| /** |
| * Check whether there are child areas. |
| * |
| * @return the result. |
| */ |
| public boolean isEmpty() { |
| return children == null || children.size() == 0; |
| } |
| |
| /** |
| * Set the X offset of this block parent area. |
| * |
| * @param off the x offset of the block parent area |
| */ |
| public void setXOffset(int off) { |
| xOffset = off; |
| } |
| |
| /** |
| * Set the Y offset of this block parent area. |
| * |
| * @param off the y offset of the block parent area |
| */ |
| public void setYOffset(int off) { |
| yOffset = off; |
| } |
| |
| /** |
| * Get the X offset of this block parent area. |
| * |
| * @return the x offset of the block parent area |
| */ |
| public int getXOffset() { |
| return xOffset; |
| } |
| |
| /** |
| * Get the Y offset of this block parent area. |
| * |
| * @return the y offset of the block parent area |
| */ |
| public int getYOffset() { |
| return yOffset; |
| } |
| } |