| /* |
| * Copyright 1999-2005 The Apache Software Foundation. |
| * |
| * Licensed 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; |
| |
| import org.apache.fop.apps.FOPException; |
| import org.apache.fop.fo.FONode; |
| import org.apache.fop.fo.PropertyList; |
| |
| /** |
| * Abstract base class for fo:region-before and fo:region-after. |
| */ |
| public abstract class RegionBA extends SideRegion { |
| // The value of properties relevant for fo:region-[before|after]. |
| private int precedence; |
| // End of property values |
| |
| /** |
| * @see org.apache.fop.fo.FONode#FONode(FONode) |
| */ |
| protected RegionBA(FONode parent) { |
| super(parent); |
| } |
| |
| /** |
| * @see org.apache.fop.fo.FObj#bind(PropertyList) |
| */ |
| public void bind(PropertyList pList) throws FOPException { |
| super.bind(pList); |
| precedence = pList.get(PR_PRECEDENCE).getEnum(); |
| } |
| |
| /** |
| * @return the "precedence" property. |
| */ |
| public int getPrecedence() { |
| return precedence; |
| } |
| |
| /** |
| * Adjust the viewport reference rectangle for a region as a function |
| * of precedence. |
| * If precedence is false on a before or after region, its |
| * inline-progression-dimension is limited by the extent of the start |
| * and end regions if they are present. |
| * @param vpRefRect viewport reference rectangle |
| * @param wm writing mode |
| */ |
| protected void adjustIPD(Rectangle vpRefRect, int wm) { |
| int offset = 0; |
| RegionStart start = (RegionStart) getSiblingRegion(FO_REGION_START); |
| if (start != null) { |
| offset = start.getExtent().getValue(); |
| vpRefRect.translate(offset, 0); // move (x, y) units |
| } |
| RegionEnd end = (RegionEnd) getSiblingRegion(FO_REGION_END); |
| if (end != null) { |
| offset += end.getExtent().getValue(); |
| } |
| if (offset > 0) { |
| if (wm == EN_LR_TB || wm == EN_RL_TB) { |
| vpRefRect.width -= offset; |
| } else { |
| vpRefRect.height -= offset; |
| } |
| } |
| } |
| } |
| |