org.apache.poi.hslf.usermodel
Class HSLFSlideShowEncrypted

java.lang.Object
  org.apache.poi.hslf.usermodel.HSLFSlideShowEncrypted

All Implemented Interfaces:

java.io.Closeable

@Internal
public class HSLFSlideShowEncrypted
extends java.lang.Object
implements java.io.Closeable

This class provides helper functions for encrypted PowerPoint documents.

HSLFSlideShowEncrypted

protected HSLFSlideShowEncrypted(DocumentEncryptionAtom dea)

HSLFSlideShowEncrypted

protected HSLFSlideShowEncrypted(byte[] docstream,
                                 java.util.NavigableMap<java.lang.Integer,Record> recordMap)

getDocumentEncryptionAtom

public DocumentEncryptionAtom getDocumentEncryptionAtom()

getEncryptionInfo

protected EncryptionInfo getEncryptionInfo()

encryptRecord

protected java.io.OutputStream encryptRecord(java.io.OutputStream plainStream,
                                             int persistId,
                                             Record record)

decryptRecord

protected void decryptRecord(byte[] docstream,
                             int persistId,
                             int offset)

decryptPicture

protected void decryptPicture(byte[] pictstream,
                              int offset)

encryptPicture

protected void encryptPicture(byte[] pictstream,
                              int offset)

updateEncryptionRecord

protected Record[] updateEncryptionRecord(Record[] records)

normalizeRecords

protected static Record[] normalizeRecords(Record[] records)

remove duplicated UserEditAtoms and merge PersistPtrHolder. Before this method is called, make sure that the offsets are correct, i.e. call HSLFSlideShowImpl.updateAndWriteDependantRecords(OutputStream, Map)

removeEncryptionRecord

protected static Record[] removeEncryptionRecord(Record[] records)

addEncryptionRecord

protected static Record[] addEncryptionRecord(Record[] records,
                                              DocumentEncryptionAtom dea)

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Throws:

java.io.IOException