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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.area;
-
-
- // block areas hold either more block areas or line
- // areas can also be used as a block spacer
- // a block area may have children positioned by stacking
- // or by relative to the parent for floats, tables and lists
- // cacheable object
- // has id information
-
- /**
- * This is the block area class.
- * It holds child block areas such as other blocks or lines.
- */
- public class Block extends BlockParent {
- /**
- * Normally stacked with other blocks.
- */
- public static final int STACK = 0;
-
- /**
- * Placed relative to the flow position.
- * This effects the flow placement of stacking normally.
- */
- public static final int RELATIVE = 1;
-
- /**
- * Relative to the block parent but not effecting the stacking
- * Used for block-container, tables and lists.
- */
- public static final int ABSOLUTE = 2;
-
- /**
- * Relative to a viewport/page but not effecting the stacking
- * Used for block-container.
- */
- public static final int FIXED = 3;
-
- private int stacking = TB;
- private int positioning = STACK;
-
- protected transient boolean allowBPDUpdate = true;
-
- // a block with may contain the dominant styling info in
- // terms of most lines or blocks with info
-
- /**
- * Add the block to this block area.
- *
- * @param block the block area to add
- */
- public void addBlock(Block block) {
- addBlock(block, true);
- }
-
- /**
- * Add the block to this block area.
- *
- * @param block the block area to add
- * @param autoHeight increase the height of the block.
- */
- public void addBlock(Block block, boolean autoHeight) {
- if (autoHeight && allowBPDUpdate) {
- bpd += block.getAllocBPD();
- }
- addChildArea(block);
- }
-
- /**
- * Add the line area to this block area.
- *
- * @param line the line area to add
- */
- public void addLineArea(LineArea line) {
- bpd += line.getAllocBPD();
- addChildArea(line);
- }
-
- /**
- * Set the positioning of this area.
- *
- * @param pos the positioning to use when rendering this area
- */
- public void setPositioning(int pos) {
- positioning = pos;
- }
-
- /**
- * Get the positioning of this area.
- *
- * @return the positioning to use when rendering this area
- */
- public int getPositioning() {
- return positioning;
- }
-
- /**
- * Indicates whether this block is stacked, rather than absolutely positioned.
- * @return true if it is stacked
- */
- public boolean isStacked() {
- return (getPositioning() == Block.STACK || getPositioning() == Block.RELATIVE);
- }
-
- /**
- * @return the start-indent trait
- */
- public int getStartIndent() {
- Integer startIndent = (Integer)getTrait(Trait.START_INDENT);
- return (startIndent != null ? startIndent.intValue() : 0);
- }
-
- }
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