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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.fo.pagination;
-
- // Java
- import java.awt.Rectangle;
-
- // FOP
- import org.apache.fop.datatypes.FODimension;
- import org.apache.fop.datatypes.LengthBase;
- import org.apache.fop.datatypes.PercentBaseContext;
- import org.apache.fop.fo.FONode;
-
- /**
- * Class modelling the <a href="http://www.w3.org/TR/xsl/#fo_region-before">
- * <code>fo:region-before</code></a> object.
- */
- public class RegionBefore extends RegionBA {
-
- /**
- * Create a RegionBefore instance that is a child of the
- * given parent {@link FONode}.
- * @param parent the {@link FONode} that is to be the parent
- */
- public RegionBefore(FONode parent) {
- super(parent);
- }
-
- /** {@inheritDoc} */
- protected String getDefaultRegionName() {
- return "xsl-region-before";
- }
-
- /** {@inheritDoc} */
- public Rectangle getViewportRectangle (FODimension reldims) {
- /* Special rules apply to resolving extent as values are resolved relative
- * to the page size and reference orientation.
- */
- PercentBaseContext pageWidthContext = getPageWidthContext(LengthBase.CUSTOM_BASE);
- PercentBaseContext pageHeightContext = getPageHeightContext(LengthBase.CUSTOM_BASE);
- PercentBaseContext neighbourContext;
- Rectangle vpRect;
- if (layoutMaster.getWritingMode() == EN_LR_TB
- || layoutMaster.getWritingMode() == EN_RL_TB) {
- neighbourContext = pageWidthContext;
- vpRect = new Rectangle(0, 0, reldims.ipd, getExtent().getValue(pageHeightContext));
- } else {
- neighbourContext = pageHeightContext;
- vpRect = new Rectangle(0, 0, getExtent().getValue(pageWidthContext), reldims.ipd);
- }
- if (getPrecedence() == EN_FALSE) {
- adjustIPD(vpRect, layoutMaster.getWritingMode(), neighbourContext);
- }
- return vpRect;
- }
-
- /** {@inheritDoc} */
- public String getLocalName() {
- return "region-before";
- }
-
- /**
- * {@inheritDoc}
- * @return {@link org.apache.fop.fo.Constants#FO_REGION_BEFORE}
- */
- public int getNameId() {
- return FO_REGION_BEFORE;
- }
- }
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