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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.
- ==================================================================== */
- package org.apache.poi.hwpf.model;
-
- import java.io.ByteArrayOutputStream;
- import java.io.IOException;
-
- import org.apache.poi.hwpf.model.types.FRDAbstractType;
- import org.apache.poi.util.Internal;
-
- /**
- * Holds information about document notes (footnotes or ending notes)
- *
- * @author Sergey Vladimirov (vlsergey {at} gmail {doc} com)
- */
- @Internal
- public class NotesTables
- {
- private PlexOfCps descriptors = new PlexOfCps(FRDAbstractType.getSize() );
-
- private final NoteType noteType;
-
- private PlexOfCps textPositions = new PlexOfCps( 0 );
-
- public NotesTables( final NoteType noteType )
- {
- this.noteType = noteType;
- textPositions
- .addProperty( new GenericPropertyNode( 0, 1, new byte[0] ) );
- }
-
- public NotesTables( final NoteType noteType, byte[] tableStream,
- FileInformationBlock fib )
- {
- this.noteType = noteType;
- read( tableStream, fib );
- }
-
- public GenericPropertyNode getDescriptor( int index )
- {
- return descriptors.getProperty( index );
- }
-
- public int getDescriptorsCount()
- {
- return descriptors.length();
- }
-
- public GenericPropertyNode getTextPosition( int index )
- {
- return textPositions.getProperty( index );
- }
-
- private void read( byte[] tableStream, FileInformationBlock fib )
- {
- int referencesStart = fib.getNotesDescriptorsOffset( noteType );
- int referencesLength = fib.getNotesDescriptorsSize( noteType );
-
- if ( referencesStart != 0 && referencesLength != 0 )
- this.descriptors = new PlexOfCps( tableStream, referencesStart,
- referencesLength, FRDAbstractType.getSize() );
-
- int textPositionsStart = fib.getNotesTextPositionsOffset( noteType );
- int textPositionsLength = fib.getNotesTextPositionsSize( noteType );
-
- if ( textPositionsStart != 0 && textPositionsLength != 0 )
- this.textPositions = new PlexOfCps( tableStream,
- textPositionsStart, textPositionsLength, 0 );
- }
-
- public void writeRef( FileInformationBlock fib, ByteArrayOutputStream tableStream )
- throws IOException
- {
- if ( descriptors == null || descriptors.length() == 0 )
- {
- fib.setNotesDescriptorsOffset( noteType, tableStream.size() );
- fib.setNotesDescriptorsSize( noteType, 0 );
- return;
- }
-
- int start = tableStream.size();
- tableStream.write( descriptors.toByteArray() );
- int end = tableStream.size();
-
- fib.setNotesDescriptorsOffset( noteType, start );
- fib.setNotesDescriptorsSize( noteType, end - start );
- }
-
- public void writeTxt( FileInformationBlock fib, ByteArrayOutputStream tableStream )
- throws IOException
- {
- if ( textPositions == null || textPositions.length() == 0 )
- {
- fib.setNotesTextPositionsOffset( noteType, tableStream.size() );
- fib.setNotesTextPositionsSize( noteType, 0 );
- return;
- }
-
- int start = tableStream.size();
- tableStream.write( textPositions.toByteArray() );
- int end = tableStream.size();
-
- fib.setNotesTextPositionsOffset( noteType, start );
- fib.setNotesTextPositionsSize( noteType, end - start );
- }
- }
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