org.apache.poi.hslf.usermodel.SlideShow Maven / Gradle / Ivy
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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
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distributed under the License is distributed on an "AS IS" BASIS,
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package org.apache.poi.hslf.usermodel;
import java.awt.Dimension;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.*;
import org.apache.poi.ddf.EscherBSERecord;
import org.apache.poi.ddf.EscherContainerRecord;
import org.apache.poi.ddf.EscherOptRecord;
import org.apache.poi.ddf.EscherRecord;
import org.apache.poi.hslf.HSLFSlideShow;
import org.apache.poi.hslf.exceptions.CorruptPowerPointFileException;
import org.apache.poi.hslf.exceptions.HSLFException;
import org.apache.poi.hslf.model.*;
import org.apache.poi.hslf.model.Notes;
import org.apache.poi.hslf.model.Slide;
import org.apache.poi.hslf.record.*;
import org.apache.poi.hslf.record.SlideListWithText.SlideAtomsSet;
import org.apache.poi.util.POILogFactory;
import org.apache.poi.util.POILogger;
/**
* This class is a friendly wrapper on top of the more scary HSLFSlideShow.
*
* TODO: - figure out how to match notes to their correct sheet (will involve
* understanding DocSlideList and DocNotesList) - handle Slide creation cleaner
*
* @author Nick Burch
* @author Yegor kozlov
*/
public final class SlideShow {
// What we're based on
private HSLFSlideShow _hslfSlideShow;
// Low level contents, as taken from HSLFSlideShow
private Record[] _records;
// Pointers to the most recent versions of the core records
// (Document, Notes, Slide etc)
private Record[] _mostRecentCoreRecords;
// Lookup between the PersitPtr "sheet" IDs, and the position
// in the mostRecentCoreRecords array
private Hashtable _sheetIdToCoreRecordsLookup;
// Records that are interesting
private Document _documentRecord;
// Friendly objects for people to deal with
private SlideMaster[] _masters;
private TitleMaster[] _titleMasters;
private Slide[] _slides;
private Notes[] _notes;
private FontCollection _fonts;
// For logging
private POILogger logger = POILogFactory.getLogger(this.getClass());
/* ===============================================================
* Setup Code
* ===============================================================
*/
/**
* Constructs a Powerpoint document from the underlying
* HSLFSlideShow object. Finds the model stuff from this
*
* @param hslfSlideShow the HSLFSlideShow to base on
*/
public SlideShow(HSLFSlideShow hslfSlideShow) {
// Get useful things from our base slideshow
_hslfSlideShow = hslfSlideShow;
_records = _hslfSlideShow.getRecords();
// Handle Parent-aware Records
for (Record record : _records) {
if(record instanceof RecordContainer){
RecordContainer.handleParentAwareRecords((RecordContainer)record);
}
}
// Find the versions of the core records we'll want to use
findMostRecentCoreRecords();
// Build up the model level Slides and Notes
buildSlidesAndNotes();
}
/**
* Constructs a new, empty, Powerpoint document.
*/
public SlideShow() {
this(HSLFSlideShow.create());
}
/**
* Constructs a Powerpoint document from an input stream.
*/
public SlideShow(InputStream inputStream) throws IOException {
this(new HSLFSlideShow(inputStream));
}
/**
* Use the PersistPtrHolder entries to figure out what is the "most recent"
* version of all the core records (Document, Notes, Slide etc), and save a
* record of them. Do this by walking from the oldest PersistPtr to the
* newest, overwriting any references found along the way with newer ones
*/
private void findMostRecentCoreRecords() {
// To start with, find the most recent in the byte offset domain
Hashtable mostRecentByBytes = new Hashtable();
for (int i = 0; i < _records.length; i++) {
if (_records[i] instanceof PersistPtrHolder) {
PersistPtrHolder pph = (PersistPtrHolder) _records[i];
// If we've already seen any of the "slide" IDs for this
// PersistPtr, remove their old positions
int[] ids = pph.getKnownSlideIDs();
for (int j = 0; j < ids.length; j++) {
Integer id = Integer.valueOf(ids[j]);
if (mostRecentByBytes.containsKey(id)) {
mostRecentByBytes.remove(id);
}
}
// Now, update the byte level locations with their latest values
Hashtable thisSetOfLocations = pph.getSlideLocationsLookup();
for (int j = 0; j < ids.length; j++) {
Integer id = Integer.valueOf(ids[j]);
mostRecentByBytes.put(id, thisSetOfLocations.get(id));
}
}
}
// We now know how many unique special records we have, so init
// the array
_mostRecentCoreRecords = new Record[mostRecentByBytes.size()];
// We'll also want to be able to turn the slide IDs into a position
// in this array
_sheetIdToCoreRecordsLookup = new Hashtable();
int[] allIDs = new int[_mostRecentCoreRecords.length];
Enumeration ids = mostRecentByBytes.keys();
for (int i = 0; i < allIDs.length; i++) {
Integer id = ids.nextElement();
allIDs[i] = id.intValue();
}
Arrays.sort(allIDs);
for (int i = 0; i < allIDs.length; i++) {
_sheetIdToCoreRecordsLookup.put(Integer.valueOf(allIDs[i]), Integer.valueOf(i));
}
// Now convert the byte offsets back into record offsets
for (int i = 0; i < _records.length; i++) {
if (_records[i] instanceof PositionDependentRecord) {
PositionDependentRecord pdr = (PositionDependentRecord) _records[i];
Integer recordAt = Integer.valueOf(pdr.getLastOnDiskOffset());
// Is it one we care about?
for (int j = 0; j < allIDs.length; j++) {
Integer thisID = Integer.valueOf(allIDs[j]);
Integer thatRecordAt = mostRecentByBytes.get(thisID);
if (thatRecordAt.equals(recordAt)) {
// Bingo. Now, where do we store it?
Integer storeAtI = _sheetIdToCoreRecordsLookup.get(thisID);
int storeAt = storeAtI.intValue();
// Tell it its Sheet ID, if it cares
if (pdr instanceof PositionDependentRecordContainer) {
PositionDependentRecordContainer pdrc = (PositionDependentRecordContainer) _records[i];
pdrc.setSheetId(thisID.intValue());
}
// Finally, save the record
_mostRecentCoreRecords[storeAt] = _records[i];
}
}
}
}
// Now look for the interesting records in there
for (int i = 0; i < _mostRecentCoreRecords.length; i++) {
// Check there really is a record at this number
if (_mostRecentCoreRecords[i] != null) {
// Find the Document, and interesting things in it
if (_mostRecentCoreRecords[i].getRecordType() == RecordTypes.Document.typeID) {
_documentRecord = (Document) _mostRecentCoreRecords[i];
_fonts = _documentRecord.getEnvironment().getFontCollection();
}
} else {
// No record at this number
// Odd, but not normally a problem
}
}
}
/**
* For a given SlideAtomsSet, return the core record, based on the refID
* from the SlidePersistAtom
*/
private Record getCoreRecordForSAS(SlideAtomsSet sas) {
SlidePersistAtom spa = sas.getSlidePersistAtom();
int refID = spa.getRefID();
return getCoreRecordForRefID(refID);
}
/**
* For a given refID (the internal, 0 based numbering scheme), return the
* core record
*
* @param refID
* the refID
*/
private Record getCoreRecordForRefID(int refID) {
Integer coreRecordId = _sheetIdToCoreRecordsLookup.get(Integer.valueOf(refID));
if (coreRecordId != null) {
Record r = _mostRecentCoreRecords[coreRecordId.intValue()];
return r;
}
logger.log(POILogger.ERROR,
"We tried to look up a reference to a core record, but there was no core ID for reference ID "
+ refID);
return null;
}
/**
* Build up model level Slide and Notes objects, from the underlying
* records.
*/
private void buildSlidesAndNotes() {
// Ensure we really found a Document record earlier
// If we didn't, then the file is probably corrupt
if (_documentRecord == null) {
throw new CorruptPowerPointFileException(
"The PowerPoint file didn't contain a Document Record in its PersistPtr blocks. It is probably corrupt.");
}
// Fetch the SlideListWithTexts in the most up-to-date Document Record
//
// As far as we understand it:
// * The first SlideListWithText will contain a SlideAtomsSet
// for each of the master slides
// * The second SlideListWithText will contain a SlideAtomsSet
// for each of the slides, in their current order
// These SlideAtomsSets will normally contain text
// * The third SlideListWithText (if present), will contain a
// SlideAtomsSet for each Notes
// These SlideAtomsSets will not normally contain text
//
// Having indentified the masters, slides and notes + their orders,
// we have to go and find their matching records
// We always use the latest versions of these records, and use the
// SlideAtom/NotesAtom to match them with the StyleAtomSet
SlideListWithText masterSLWT = _documentRecord.getMasterSlideListWithText();
SlideListWithText slidesSLWT = _documentRecord.getSlideSlideListWithText();
SlideListWithText notesSLWT = _documentRecord.getNotesSlideListWithText();
// Find master slides
// These can be MainMaster records, but oddly they can also be
// Slides or Notes, and possibly even other odd stuff....
// About the only thing you can say is that the master details are in
// the first SLWT.
SlideAtomsSet[] masterSets = new SlideAtomsSet[0];
if (masterSLWT != null) {
masterSets = masterSLWT.getSlideAtomsSets();
ArrayList mmr = new ArrayList();
ArrayList tmr = new ArrayList();
for (int i = 0; i < masterSets.length; i++) {
Record r = getCoreRecordForSAS(masterSets[i]);
SlideAtomsSet sas = masterSets[i];
int sheetNo = sas.getSlidePersistAtom().getSlideIdentifier();
if (r instanceof org.apache.poi.hslf.record.Slide) {
TitleMaster master = new TitleMaster((org.apache.poi.hslf.record.Slide) r,
sheetNo);
master.setSlideShow(this);
tmr.add(master);
} else if (r instanceof org.apache.poi.hslf.record.MainMaster) {
SlideMaster master = new SlideMaster((org.apache.poi.hslf.record.MainMaster) r,
sheetNo);
master.setSlideShow(this);
mmr.add(master);
}
}
_masters = new SlideMaster[mmr.size()];
mmr.toArray(_masters);
_titleMasters = new TitleMaster[tmr.size()];
tmr.toArray(_titleMasters);
}
// Having sorted out the masters, that leaves the notes and slides
// Start by finding the notes records to go with the entries in
// notesSLWT
org.apache.poi.hslf.record.Notes[] notesRecords;
SlideAtomsSet[] notesSets = new SlideAtomsSet[0];
Hashtable slideIdToNotes = new Hashtable();
if (notesSLWT == null) {
// None
notesRecords = new org.apache.poi.hslf.record.Notes[0];
} else {
// Match up the records and the SlideAtomSets
notesSets = notesSLWT.getSlideAtomsSets();
ArrayList notesRecordsL =
new ArrayList();
for (int i = 0; i < notesSets.length; i++) {
// Get the right core record
Record r = getCoreRecordForSAS(notesSets[i]);
// Ensure it really is a notes record
if (r instanceof org.apache.poi.hslf.record.Notes) {
org.apache.poi.hslf.record.Notes notesRecord = (org.apache.poi.hslf.record.Notes) r;
notesRecordsL.add(notesRecord);
// Record the match between slide id and these notes
SlidePersistAtom spa = notesSets[i].getSlidePersistAtom();
Integer slideId = Integer.valueOf(spa.getSlideIdentifier());
slideIdToNotes.put(slideId, Integer.valueOf(i));
} else {
logger.log(POILogger.ERROR, "A Notes SlideAtomSet at " + i
+ " said its record was at refID "
+ notesSets[i].getSlidePersistAtom().getRefID()
+ ", but that was actually a " + r);
}
}
notesRecords = new org.apache.poi.hslf.record.Notes[notesRecordsL.size()];
notesRecords = notesRecordsL.toArray(notesRecords);
}
// Now, do the same thing for our slides
org.apache.poi.hslf.record.Slide[] slidesRecords;
SlideAtomsSet[] slidesSets = new SlideAtomsSet[0];
if (slidesSLWT == null) {
// None
slidesRecords = new org.apache.poi.hslf.record.Slide[0];
} else {
// Match up the records and the SlideAtomSets
slidesSets = slidesSLWT.getSlideAtomsSets();
slidesRecords = new org.apache.poi.hslf.record.Slide[slidesSets.length];
for (int i = 0; i < slidesSets.length; i++) {
// Get the right core record
Record r = getCoreRecordForSAS(slidesSets[i]);
// Ensure it really is a slide record
if (r instanceof org.apache.poi.hslf.record.Slide) {
slidesRecords[i] = (org.apache.poi.hslf.record.Slide) r;
} else {
logger.log(POILogger.ERROR, "A Slide SlideAtomSet at " + i
+ " said its record was at refID "
+ slidesSets[i].getSlidePersistAtom().getRefID()
+ ", but that was actually a " + r);
}
}
}
// Finally, generate model objects for everything
// Notes first
_notes = new Notes[notesRecords.length];
for (int i = 0; i < _notes.length; i++) {
_notes[i] = new Notes(notesRecords[i]);
_notes[i].setSlideShow(this);
}
// Then slides
_slides = new Slide[slidesRecords.length];
for (int i = 0; i < _slides.length; i++) {
SlideAtomsSet sas = slidesSets[i];
int slideIdentifier = sas.getSlidePersistAtom().getSlideIdentifier();
// Do we have a notes for this?
Notes notes = null;
// Slide.SlideAtom.notesId references the corresponding notes slide.
// 0 if slide has no notes.
int noteId = slidesRecords[i].getSlideAtom().getNotesID();
if (noteId != 0) {
Integer notesPos = (Integer) slideIdToNotes.get(Integer.valueOf(noteId));
if (notesPos != null)
notes = _notes[notesPos.intValue()];
else
logger.log(POILogger.ERROR, "Notes not found for noteId=" + noteId);
}
// Now, build our slide
_slides[i] = new Slide(slidesRecords[i], notes, sas, slideIdentifier, (i + 1));
_slides[i].setSlideShow(this);
}
}
/**
* Writes out the slideshow file the is represented by an instance of this
* class
*
* @param out
* The OutputStream to write to.
* @throws IOException
* If there is an unexpected IOException from the passed in
* OutputStream
*/
public void write(OutputStream out) throws IOException {
_hslfSlideShow.write(out);
}
/*
* ===============================================================
* Accessor Code
* ===============================================================
*/
/**
* Returns an array of the most recent version of all the interesting
* records
*/
public Record[] getMostRecentCoreRecords() {
return _mostRecentCoreRecords;
}
/**
* Returns an array of all the normal Slides found in the slideshow
*/
public Slide[] getSlides() {
return _slides;
}
/**
* Returns an array of all the normal Notes found in the slideshow
*/
public Notes[] getNotes() {
return _notes;
}
/**
* Returns an array of all the normal Slide Masters found in the slideshow
*/
public SlideMaster[] getSlidesMasters() {
return _masters;
}
/**
* Returns an array of all the normal Title Masters found in the slideshow
*/
public TitleMaster[] getTitleMasters() {
return _titleMasters;
}
/**
* Returns the data of all the pictures attached to the SlideShow
*/
public PictureData[] getPictureData() {
return _hslfSlideShow.getPictures();
}
/**
* Returns the data of all the embedded OLE object in the SlideShow
*/
public ObjectData[] getEmbeddedObjects() {
return _hslfSlideShow.getEmbeddedObjects();
}
/**
* Returns the data of all the embedded sounds in the SlideShow
*/
public SoundData[] getSoundData() {
return SoundData.find(_documentRecord);
}
/**
* Return the current page size
*/
public Dimension getPageSize() {
DocumentAtom docatom = _documentRecord.getDocumentAtom();
int pgx = (int) docatom.getSlideSizeX() * Shape.POINT_DPI / Shape.MASTER_DPI;
int pgy = (int) docatom.getSlideSizeY() * Shape.POINT_DPI / Shape.MASTER_DPI;
return new Dimension(pgx, pgy);
}
/**
* Change the current page size
*
* @param pgsize
* page size (in points)
*/
public void setPageSize(Dimension pgsize) {
DocumentAtom docatom = _documentRecord.getDocumentAtom();
docatom.setSlideSizeX(pgsize.width * Shape.MASTER_DPI / Shape.POINT_DPI);
docatom.setSlideSizeY(pgsize.height * Shape.MASTER_DPI / Shape.POINT_DPI);
}
/**
* Helper method for usermodel: Get the font collection
*/
protected FontCollection getFontCollection() {
return _fonts;
}
/**
* Helper method for usermodel and model: Get the document record
*/
public Document getDocumentRecord() {
return _documentRecord;
}
/*
* ===============================================================
* Re-ordering Code
* ===============================================================
*/
/**
* Re-orders a slide, to a new position.
*
* @param oldSlideNumber
* The old slide number (1 based)
* @param newSlideNumber
* The new slide number (1 based)
*/
public void reorderSlide(int oldSlideNumber, int newSlideNumber) {
// Ensure these numbers are valid
if (oldSlideNumber < 1 || newSlideNumber < 1) {
throw new IllegalArgumentException("Old and new slide numbers must be greater than 0");
}
if (oldSlideNumber > _slides.length || newSlideNumber > _slides.length) {
throw new IllegalArgumentException(
"Old and new slide numbers must not exceed the number of slides ("
+ _slides.length + ")");
}
// The order of slides is defined by the order of slide atom sets in the
// SlideListWithText container.
SlideListWithText slwt = _documentRecord.getSlideSlideListWithText();
SlideAtomsSet[] sas = slwt.getSlideAtomsSets();
SlideAtomsSet tmp = sas[oldSlideNumber - 1];
sas[oldSlideNumber - 1] = sas[newSlideNumber - 1];
sas[newSlideNumber - 1] = tmp;
ArrayList lst = new ArrayList();
for (int i = 0; i < sas.length; i++) {
lst.add(sas[i].getSlidePersistAtom());
Record[] r = sas[i].getSlideRecords();
for (int j = 0; j < r.length; j++) {
lst.add(r[j]);
}
_slides[i].setSlideNumber(i + 1);
}
Record[] r = lst.toArray(new Record[lst.size()]);
slwt.setChildRecord(r);
}
/**
* Removes the slide at the given index (0-based).
*
* Shifts any subsequent slides to the left (subtracts one from their slide
* numbers).
*
*
* @param index
* the index of the slide to remove (0-based)
* @return the slide that was removed from the slide show.
*/
public Slide removeSlide(int index) {
int lastSlideIdx = _slides.length - 1;
if (index < 0 || index > lastSlideIdx) {
throw new IllegalArgumentException("Slide index (" + index + ") is out of range (0.."
+ lastSlideIdx + ")");
}
SlideListWithText slwt = _documentRecord.getSlideSlideListWithText();
SlideAtomsSet[] sas = slwt.getSlideAtomsSets();
Slide removedSlide = null;
ArrayList records = new ArrayList();
ArrayList sa = new ArrayList();
ArrayList sl = new ArrayList();
ArrayList nt = new ArrayList();
for (Notes notes : getNotes())
nt.add(notes);
for (int i = 0, num = 0; i < _slides.length; i++) {
if (i != index) {
sl.add(_slides[i]);
sa.add(sas[i]);
_slides[i].setSlideNumber(num++);
records.add(sas[i].getSlidePersistAtom());
records.addAll(Arrays.asList(sas[i].getSlideRecords()));
} else {
removedSlide = _slides[i];
nt.remove(_slides[i].getNotesSheet());
}
}
if (sa.size() == 0) {
_documentRecord.removeSlideListWithText(slwt);
} else {
slwt.setSlideAtomsSets(sa.toArray(new SlideAtomsSet[sa.size()]));
slwt.setChildRecord(records.toArray(new Record[records.size()]));
}
_slides = sl.toArray(new Slide[sl.size()]);
// if the removed slide had notes - remove references to them too
if (removedSlide != null) {
int notesId = removedSlide.getSlideRecord().getSlideAtom().getNotesID();
if (notesId != 0) {
SlideListWithText nslwt = _documentRecord.getNotesSlideListWithText();
records = new ArrayList();
ArrayList na = new ArrayList();
for (SlideAtomsSet ns : nslwt.getSlideAtomsSets()) {
if (ns.getSlidePersistAtom().getSlideIdentifier() != notesId) {
na.add(ns);
records.add(ns.getSlidePersistAtom());
if (ns.getSlideRecords() != null)
records.addAll(Arrays.asList(ns.getSlideRecords()));
}
}
if (na.size() == 0) {
_documentRecord.removeSlideListWithText(nslwt);
} else {
nslwt.setSlideAtomsSets(na.toArray(new SlideAtomsSet[na.size()]));
nslwt.setChildRecord(records.toArray(new Record[records.size()]));
}
}
}
_notes = nt.toArray(new Notes[nt.size()]);
return removedSlide;
}
/*
* ===============================================================
* Addition Code
* ===============================================================
*/
/**
* Create a blank Slide.
*
* @return the created Slide
*/
public Slide createSlide() {
SlideListWithText slist = null;
// We need to add the records to the SLWT that deals
// with Slides.
// Add it, if it doesn't exist
slist = _documentRecord.getSlideSlideListWithText();
if (slist == null) {
// Need to add a new one
slist = new SlideListWithText();
slist.setInstance(SlideListWithText.SLIDES);
_documentRecord.addSlideListWithText(slist);
}
// Grab the SlidePersistAtom with the highest Slide Number.
// (Will stay as null if no SlidePersistAtom exists yet in
// the slide, or only master slide's ones do)
SlidePersistAtom prev = null;
SlideAtomsSet[] sas = slist.getSlideAtomsSets();
for (int j = 0; j < sas.length; j++) {
SlidePersistAtom spa = sas[j].getSlidePersistAtom();
if (spa.getSlideIdentifier() < 0) {
// This is for a master slide
// Odd, since we only deal with the Slide SLWT
} else {
// Must be for a real slide
if (prev == null) {
prev = spa;
}
if (prev.getSlideIdentifier() < spa.getSlideIdentifier()) {
prev = spa;
}
}
}
// Set up a new SlidePersistAtom for this slide
SlidePersistAtom sp = new SlidePersistAtom();
// First slideId is always 256
sp.setSlideIdentifier(prev == null ? 256 : (prev.getSlideIdentifier() + 1));
// Add this new SlidePersistAtom to the SlideListWithText
slist.addSlidePersistAtom(sp);
// Create a new Slide
Slide slide = new Slide(sp.getSlideIdentifier(), sp.getRefID(), _slides.length + 1);
slide.setSlideShow(this);
slide.onCreate();
// Add in to the list of Slides
Slide[] s = new Slide[_slides.length + 1];
System.arraycopy(_slides, 0, s, 0, _slides.length);
s[_slides.length] = slide;
_slides = s;
logger.log(POILogger.INFO, "Added slide " + _slides.length + " with ref " + sp.getRefID()
+ " and identifier " + sp.getSlideIdentifier());
// Add the core records for this new Slide to the record tree
org.apache.poi.hslf.record.Slide slideRecord = slide.getSlideRecord();
int slideRecordPos = _hslfSlideShow.appendRootLevelRecord(slideRecord);
_records = _hslfSlideShow.getRecords();
// Add the new Slide into the PersistPtr stuff
int offset = 0;
int slideOffset = 0;
PersistPtrHolder ptr = null;
UserEditAtom usr = null;
for (int i = 0; i < _records.length; i++) {
Record record = _records[i];
ByteArrayOutputStream out = new ByteArrayOutputStream();
try {
record.writeOut(out);
} catch (IOException e) {
throw new HSLFException(e);
}
// Grab interesting records as they come past
if (_records[i].getRecordType() == RecordTypes.PersistPtrIncrementalBlock.typeID) {
ptr = (PersistPtrHolder) _records[i];
}
if (_records[i].getRecordType() == RecordTypes.UserEditAtom.typeID) {
usr = (UserEditAtom) _records[i];
}
if (i == slideRecordPos) {
slideOffset = offset;
}
offset += out.size();
}
// persist ID is UserEditAtom.maxPersistWritten + 1
int psrId = usr.getMaxPersistWritten() + 1;
sp.setRefID(psrId);
slideRecord.setSheetId(psrId);
// Last view is now of the slide
usr.setLastViewType((short) UserEditAtom.LAST_VIEW_SLIDE_VIEW);
usr.setMaxPersistWritten(psrId); // increment the number of persit
// objects
// Add the new slide into the last PersistPtr
// (Also need to tell it where it is)
slideRecord.setLastOnDiskOffset(slideOffset);
ptr.addSlideLookup(sp.getRefID(), slideOffset);
logger.log(POILogger.INFO, "New slide ended up at " + slideOffset);
slide.setMasterSheet(_masters[0]);
// All done and added
return slide;
}
/**
* Adds a picture to this presentation and returns the associated index.
*
* @param data
* picture data
* @param format
* the format of the picture. One of constans defined in the
* Picture class.
* @return the index to this picture (1 based).
*/
public int addPicture(byte[] data, int format) throws IOException {
byte[] uid = PictureData.getChecksum(data);
EscherContainerRecord bstore;
EscherContainerRecord dggContainer = _documentRecord.getPPDrawingGroup().getDggContainer();
bstore = (EscherContainerRecord) Shape.getEscherChild(dggContainer,
EscherContainerRecord.BSTORE_CONTAINER);
if (bstore == null) {
bstore = new EscherContainerRecord();
bstore.setRecordId(EscherContainerRecord.BSTORE_CONTAINER);
dggContainer.addChildBefore(bstore, EscherOptRecord.RECORD_ID);
} else {
Iterator iter = bstore.getChildIterator();
for (int i = 0; iter.hasNext(); i++) {
EscherBSERecord bse = (EscherBSERecord) iter.next();
if (Arrays.equals(bse.getUid(), uid)) {
return i + 1;
}
}
}
PictureData pict = PictureData.create(format);
pict.setData(data);
int offset = _hslfSlideShow.addPicture(pict);
EscherBSERecord bse = new EscherBSERecord();
bse.setRecordId(EscherBSERecord.RECORD_ID);
bse.setOptions((short) (0x0002 | (format << 4)));
bse.setSize(pict.getRawData().length + 8);
bse.setUid(uid);
bse.setBlipTypeMacOS((byte) format);
bse.setBlipTypeWin32((byte) format);
if (format == Picture.EMF)
bse.setBlipTypeMacOS((byte) Picture.PICT);
else if (format == Picture.WMF)
bse.setBlipTypeMacOS((byte) Picture.PICT);
else if (format == Picture.PICT)
bse.setBlipTypeWin32((byte) Picture.WMF);
bse.setRef(0);
bse.setOffset(offset);
bse.setRemainingData(new byte[0]);
bstore.addChildRecord(bse);
int count = bstore.getChildRecords().size();
bstore.setOptions((short) ((count << 4) | 0xF));
return count;
}
/**
* Adds a picture to this presentation and returns the associated index.
*
* @param pict
* the file containing the image to add
* @param format
* the format of the picture. One of constans defined in the
* Picture class.
* @return the index to this picture (1 based).
*/
public int addPicture(File pict, int format) throws IOException {
int length = (int) pict.length();
byte[] data = new byte[length];
try {
FileInputStream is = new FileInputStream(pict);
is.read(data);
is.close();
} catch (IOException e) {
throw new HSLFException(e);
}
return addPicture(data, format);
}
/**
* Add a font in this presentation
*
* @param font
* the font to add
* @return 0-based index of the font
*/
public int addFont(PPFont font) {
FontCollection fonts = getDocumentRecord().getEnvironment().getFontCollection();
int idx = fonts.getFontIndex(font.getFontName());
if (idx == -1) {
idx = fonts.addFont(font.getFontName(), font.getCharSet(), font.getFontFlags(), font
.getFontType(), font.getPitchAndFamily());
}
return idx;
}
/**
* Get a font by index
*
* @param idx
* 0-based index of the font
* @return of an instance of PPFont or null if not
* found
*/
public PPFont getFont(int idx) {
PPFont font = null;
FontCollection fonts = getDocumentRecord().getEnvironment().getFontCollection();
Record[] ch = fonts.getChildRecords();
for (int i = 0; i < ch.length; i++) {
if (ch[i] instanceof FontEntityAtom) {
FontEntityAtom atom = (FontEntityAtom) ch[i];
if (atom.getFontIndex() == idx) {
font = new PPFont(atom);
break;
}
}
}
return font;
}
/**
* get the number of fonts in the presentation
*
* @return number of fonts
*/
public int getNumberOfFonts() {
return getDocumentRecord().getEnvironment().getFontCollection().getNumberOfFonts();
}
/**
* Return Header / Footer settings for slides
*
* @return Header / Footer settings for slides
*/
public HeadersFooters getSlideHeadersFooters() {
// detect if this ppt was saved in Office2007
String tag = getSlidesMasters()[0].getProgrammableTag();
boolean ppt2007 = "___PPT12".equals(tag);
HeadersFootersContainer hdd = null;
Record[] ch = _documentRecord.getChildRecords();
for (int i = 0; i < ch.length; i++) {
if (ch[i] instanceof HeadersFootersContainer
&& ((HeadersFootersContainer) ch[i]).getOptions() == HeadersFootersContainer.SlideHeadersFootersContainer) {
hdd = (HeadersFootersContainer) ch[i];
break;
}
}
boolean newRecord = false;
if (hdd == null) {
hdd = new HeadersFootersContainer(HeadersFootersContainer.SlideHeadersFootersContainer);
newRecord = true;
}
return new HeadersFooters(hdd, this, newRecord, ppt2007);
}
/**
* Return Header / Footer settings for notes
*
* @return Header / Footer settings for notes
*/
public HeadersFooters getNotesHeadersFooters() {
// detect if this ppt was saved in Office2007
String tag = getSlidesMasters()[0].getProgrammableTag();
boolean ppt2007 = "___PPT12".equals(tag);
HeadersFootersContainer hdd = null;
Record[] ch = _documentRecord.getChildRecords();
for (int i = 0; i < ch.length; i++) {
if (ch[i] instanceof HeadersFootersContainer
&& ((HeadersFootersContainer) ch[i]).getOptions() == HeadersFootersContainer.NotesHeadersFootersContainer) {
hdd = (HeadersFootersContainer) ch[i];
break;
}
}
boolean newRecord = false;
if (hdd == null) {
hdd = new HeadersFootersContainer(HeadersFootersContainer.NotesHeadersFootersContainer);
newRecord = true;
}
if (ppt2007 && _notes.length > 0) {
return new HeadersFooters(hdd, _notes[0], newRecord, ppt2007);
}
return new HeadersFooters(hdd, this, newRecord, ppt2007);
}
/**
* Add a movie in this presentation
*
* @param path
* the path or url to the movie
* @return 0-based index of the movie
*/
public int addMovie(String path, int type) {
ExObjList lst = (ExObjList) _documentRecord.findFirstOfType(RecordTypes.ExObjList.typeID);
if (lst == null) {
lst = new ExObjList();
_documentRecord.addChildAfter(lst, _documentRecord.getDocumentAtom());
}
ExObjListAtom objAtom = lst.getExObjListAtom();
// increment the object ID seed
int objectId = (int) objAtom.getObjectIDSeed() + 1;
objAtom.setObjectIDSeed(objectId);
ExMCIMovie mci;
switch (type) {
case MovieShape.MOVIE_MPEG:
mci = new ExMCIMovie();
break;
case MovieShape.MOVIE_AVI:
mci = new ExAviMovie();
break;
default:
throw new IllegalArgumentException("Unsupported Movie: " + type);
}
lst.appendChildRecord(mci);
ExVideoContainer exVideo = mci.getExVideo();
exVideo.getExMediaAtom().setObjectId(objectId);
exVideo.getExMediaAtom().setMask(0xE80000);
exVideo.getPathAtom().setText(path);
return objectId;
}
/**
* Add a control in this presentation
*
* @param name
* name of the control, e.g. "Shockwave Flash Object"
* @param progId
* OLE Programmatic Identifier, e.g.
* "ShockwaveFlash.ShockwaveFlash.9"
* @return 0-based index of the control
*/
public int addControl(String name, String progId) {
ExObjList lst = (ExObjList) _documentRecord.findFirstOfType(RecordTypes.ExObjList.typeID);
if (lst == null) {
lst = new ExObjList();
_documentRecord.addChildAfter(lst, _documentRecord.getDocumentAtom());
}
ExObjListAtom objAtom = lst.getExObjListAtom();
// increment the object ID seed
int objectId = (int) objAtom.getObjectIDSeed() + 1;
objAtom.setObjectIDSeed(objectId);
ExControl ctrl = new ExControl();
ExOleObjAtom oleObj = ctrl.getExOleObjAtom();
oleObj.setObjID(objectId);
oleObj.setDrawAspect(ExOleObjAtom.DRAW_ASPECT_VISIBLE);
oleObj.setType(ExOleObjAtom.TYPE_CONTROL);
oleObj.setSubType(ExOleObjAtom.SUBTYPE_DEFAULT);
ctrl.setProgId(progId);
ctrl.setMenuName(name);
ctrl.setClipboardName(name);
lst.addChildAfter(ctrl, objAtom);
return objectId;
}
/**
* Add a hyperlink to this presentation
*
* @return 0-based index of the hyperlink
*/
public int addHyperlink(Hyperlink link) {
ExObjList lst = (ExObjList) _documentRecord.findFirstOfType(RecordTypes.ExObjList.typeID);
if (lst == null) {
lst = new ExObjList();
_documentRecord.addChildAfter(lst, _documentRecord.getDocumentAtom());
}
ExObjListAtom objAtom = lst.getExObjListAtom();
// increment the object ID seed
int objectId = (int) objAtom.getObjectIDSeed() + 1;
objAtom.setObjectIDSeed(objectId);
ExHyperlink ctrl = new ExHyperlink();
ExHyperlinkAtom obj = ctrl.getExHyperlinkAtom();
obj.setNumber(objectId);
ctrl.setLinkURL(link.getAddress());
ctrl.setLinkTitle(link.getTitle());
lst.addChildAfter(ctrl, objAtom);
link.setId(objectId);
return objectId;
}
}