org.apache.poi.hslf
Class HSLFSlideShow

java.lang.Object
  org.apache.poi.POIDocument
      org.apache.poi.hslf.HSLFSlideShow

public class HSLFSlideShow
extends POIDocument

This class contains the main functionality for the Powerpoint file "reader". It is only a very basic class for now

Author:

Nick Burch

Field Summary

Fields inherited from class org.apache.poi.POIDocument

directory, dsInf, filesystem, initialized, sInf

Constructor Summary

HSLFSlideShow()
Constructs a new, empty, Powerpoint document.

HSLFSlideShow(DirectoryNode dir, POIFSFileSystem filesystem)
Constructs a Powerpoint document from a specific point in a POIFS Filesystem.

HSLFSlideShow(java.io.InputStream inputStream)
Constructs a Powerpoint document from an input stream.

HSLFSlideShow(POIFSFileSystem filesystem)
Constructs a Powerpoint document from a POIFS Filesystem.

HSLFSlideShow(java.lang.String fileName)
Constructs a Powerpoint document from fileName.

Method Summary

void	addPicture(PictureData img) Add a new picture to this presentation.
int	appendRootLevelRecord(Record newRecord) Adds a new root level record, at the end, but before the last PersistPtrIncrementalBlock.
void	close() Shuts things down.
CurrentUserAtom	getCurrentUserAtom() Fetch the Current User Atom of the document
ObjectData[]	getEmbeddedObjects() Gets embedded object data from the slide show.
PictureData[]	getPictures() Return array of pictures contained in this presentation
protected POIFSFileSystem	getPOIFSFileSystem() Returns the underlying POIFSFileSystem for the document that is open.
Record[]	getRecords() Returns an array of all the records found in the slideshow
byte[]	getUnderlyingBytes() Returns an array of the bytes of the file.
void	write(java.io.OutputStream out) Writes out the slideshow file the is represented by an instance of this class.
void	write(java.io.OutputStream out, boolean preserveNodes) Writes out the slideshow file the is represented by an instance of this class.

Methods inherited from class org.apache.poi.POIDocument

copyNodes, getDocumentSummaryInformation, getPropertySet, getSummaryInformation, readProperties, writeProperties, writeProperties, writePropertySet

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HSLFSlideShow

public HSLFSlideShow(java.lang.String fileName)
              throws java.io.IOException

Constructs a Powerpoint document from fileName. Parses the document and places all the important stuff into data structures.

Parameters:

fileName - The name of the file to read.

Throws:

java.io.IOException - if there is a problem while parsing the document.

HSLFSlideShow

public HSLFSlideShow(java.io.InputStream inputStream)
              throws java.io.IOException

Constructs a Powerpoint document from an input stream. Parses the document and places all the important stuff into data structures.

Parameters:

inputStream - the source of the data

Throws:

java.io.IOException - if there is a problem while parsing the document.

HSLFSlideShow

public HSLFSlideShow(POIFSFileSystem filesystem)
              throws java.io.IOException

Constructs a Powerpoint document from a POIFS Filesystem. Parses the document and places all the important stuff into data structures.

Parameters:

filesystem - the POIFS FileSystem to read from

Throws:

java.io.IOException - if there is a problem while parsing the document.

HSLFSlideShow

public HSLFSlideShow(DirectoryNode dir,
                     POIFSFileSystem filesystem)
              throws java.io.IOException

Constructs a Powerpoint document from a specific point in a POIFS Filesystem. Parses the document and places all the important stuff into data structures.

Parameters:

dir - the POIFS directory to read from

filesystem - the POIFS FileSystem to read from

Throws:

java.io.IOException - if there is a problem while parsing the document.

HSLFSlideShow

public HSLFSlideShow()
              throws java.io.IOException

Constructs a new, empty, Powerpoint document.

Throws:

java.io.IOException

Method Detail

getPOIFSFileSystem

protected POIFSFileSystem getPOIFSFileSystem()

Returns the underlying POIFSFileSystem for the document that is open.

close

public void close()
           throws java.io.IOException

Shuts things down. Closes underlying streams etc

Throws:

java.io.IOException

write

public void write(java.io.OutputStream out)
           throws java.io.IOException

Writes out the slideshow file the is represented by an instance of this class. It will write out the common OLE2 streams. If you require all streams to be written out, pass in preserveNodes

Specified by:

write in class POIDocument

Parameters:

out - The OutputStream to write to.

Throws:

java.io.IOException - If there is an unexpected IOException from the passed in OutputStream

write

public void write(java.io.OutputStream out,
                  boolean preserveNodes)
           throws java.io.IOException

Writes out the slideshow file the is represented by an instance of this class. If you require all streams to be written out (eg Marcos, embeded documents), then set preserveNodes to true

Parameters:

out - The OutputStream to write to.

preserveNodes - Should all OLE2 streams be written back out, or only the common ones?

Throws:

java.io.IOException - If there is an unexpected IOException from the passed in OutputStream

appendRootLevelRecord

public int appendRootLevelRecord(Record newRecord)

Adds a new root level record, at the end, but before the last PersistPtrIncrementalBlock.

addPicture

public void addPicture(PictureData img)

Add a new picture to this presentation.

getRecords

public Record[] getRecords()

Returns an array of all the records found in the slideshow

getUnderlyingBytes

public byte[] getUnderlyingBytes()

Returns an array of the bytes of the file. Only correct after a call to open or write - at all other times might be wrong!

getCurrentUserAtom

public CurrentUserAtom getCurrentUserAtom()

Fetch the Current User Atom of the document

getPictures

public PictureData[] getPictures()

Return array of pictures contained in this presentation

Returns:

array with the read pictures or null if the presentation doesn't contain pictures.

getEmbeddedObjects

public ObjectData[] getEmbeddedObjects()

Gets embedded object data from the slide show.

Returns:

the embedded objects.