| /* ==================================================================== |
| 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. |
| ==================================================================== */ |
| |
| package org.apache.poi.hwpf.model; |
| |
| import org.apache.poi.util.IOUtils; |
| import org.apache.poi.util.Internal; |
| import org.apache.poi.util.LittleEndian; |
| import org.apache.poi.util.LittleEndianConsts; |
| |
| /** |
| * This class holds all of the section formatting |
| * properties from Old (Word 6 / Word 95) documents. |
| * Unlike with Word 97+, it all gets held in the |
| * same stream. |
| * In common with the rest of the old support, it |
| * is read only |
| */ |
| @Internal |
| public final class OldSectionTable extends SectionTable |
| { |
| /** |
| * @deprecated Use {@link #OldSectionTable(byte[],int,int)} instead |
| */ |
| @Deprecated |
| public OldSectionTable( byte[] documentStream, int offset, int size, |
| int fcMin, TextPieceTable tpt ) |
| { |
| this( documentStream, offset, size ); |
| } |
| |
| public OldSectionTable( byte[] documentStream, int offset, int size ) |
| { |
| PlexOfCps sedPlex = new PlexOfCps( documentStream, offset, size, 12 ); |
| |
| int length = sedPlex.length(); |
| |
| for (int x = 0; x < length; x++) |
| { |
| GenericPropertyNode node = sedPlex.getProperty(x); |
| SectionDescriptor sed = new SectionDescriptor(node.getBytes(), 0); |
| |
| int fileOffset = sed.getFc(); |
| int startAt = node.getStart(); |
| int endAt = node.getEnd(); |
| |
| SEPX sepx; |
| // check for the optimization |
| if (fileOffset == 0xffffffff) |
| { |
| sepx = new SEPX(sed, startAt, endAt, new byte[0]); |
| } |
| else |
| { |
| // The first short at the offset is the size of the grpprl. |
| int sepxSize = LittleEndian.getShort(documentStream, fileOffset); |
| // Because we don't properly know about all the details of the old |
| // section properties, and we're trying to decode them as if they |
| // were the new ones, we sometimes "need" more data than we have. |
| // As a workaround, have a few extra 0 bytes on the end! |
| fileOffset += LittleEndianConsts.SHORT_SIZE; |
| byte[] buf = IOUtils.safelyClone(documentStream, fileOffset, sepxSize+2, Short.MAX_VALUE+2); |
| sepx = new SEPX(sed, startAt, endAt, buf); |
| } |
| |
| _sections.add( sepx ); |
| } |
| _sections.sort(PropertyNode.StartComparator); |
| } |
| } |