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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.traits;
import org.apache.fop.datatypes.KeepValue;
import org.apache.fop.fo.Constants;
/**
* Store properties affecting layout: break-before, break-after, keeps, span.
* for a block level FO.
* Public "structure" allows direct member access.
*/
public class LayoutProps {
public int breakBefore; // enum constant BreakBefore.xxx
public int breakAfter; // enum constant BreakAfter.xxx
public KeepValue keepWithPrevious; /*LF*/
public KeepValue keepWithNext; /*LF*/
public KeepValue keepTogether; /*LF*/
public int orphans; /*LF*/
public int widows; /*LF*/
public int blockProgressionUnit; /*LF*/
public int lineStackingStrategy; /*LF*/
public boolean bIsSpan;
public SpaceVal spaceBefore;
public SpaceVal spaceAfter;
private static final int[] BREAK_PRIORITIES =
new int[]{ Constants.EN_AUTO, Constants.EN_COLUMN, Constants.EN_PAGE };
public LayoutProps() {
breakBefore = breakAfter = Constants.EN_AUTO;
bIsSpan = false;
}
// public static int higherBreak(int brkParent, int brkChild) {
// if (brkParent == brkChild) return brkChild;
// for (int i=0; i < s_breakPriorities.length; i++) {
// int bp = s_breakPriorities[i];
// if (bp == brkParent) return brkChild;
// else if (bp == brkChild) return brkParent;
// }
// return brkChild;
// }
public void combineWithParent(LayoutProps parentLP) {
if (parentLP.breakBefore != breakBefore) {
for (int i = 0; i < BREAK_PRIORITIES.length; i++) {
int bp = BREAK_PRIORITIES[i];
if (bp == breakBefore) {
breakBefore = parentLP.breakBefore;
break;
} else if (bp == parentLP.breakBefore) {
break;
}
}
}
// Parent span always overrides child span
bIsSpan = parentLP.bIsSpan;
}
public String toString() {
return "LayoutProps:\n" +
"breakBefore = " + breakBefore + "; breakAfter = " + breakAfter + "\n" +
"spaceBefore = " + ((spaceBefore != null) ? spaceBefore.toString() : "null") + "\n" +
"spaceAfter = " + ((spaceAfter != null) ? spaceAfter.toString() : "null") + "\n" +
"bIsSpan = " + bIsSpan + "\n";
}
}
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