org.apache.poi.hslf.usermodel.HSLFSlide Maven / Gradle / Ivy
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package org.apache.poi.hslf.usermodel;
import java.awt.Graphics2D;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.ddf.EscherContainerRecord;
import org.apache.poi.ddf.EscherDgRecord;
import org.apache.poi.ddf.EscherDggRecord;
import org.apache.poi.ddf.EscherSpRecord;
import org.apache.poi.hslf.model.Comment;
import org.apache.poi.hslf.model.HeadersFooters;
import org.apache.poi.hslf.record.ColorSchemeAtom;
import org.apache.poi.hslf.record.Comment2000;
import org.apache.poi.hslf.record.EscherTextboxWrapper;
import org.apache.poi.hslf.record.HeadersFootersContainer;
import org.apache.poi.hslf.record.Record;
import org.apache.poi.hslf.record.RecordContainer;
import org.apache.poi.hslf.record.RecordTypes;
import org.apache.poi.hslf.record.SSSlideInfoAtom;
import org.apache.poi.hslf.record.SlideAtom;
import org.apache.poi.hslf.record.SlideListWithText.SlideAtomsSet;
import org.apache.poi.hslf.record.StyleTextProp9Atom;
import org.apache.poi.hslf.record.TextHeaderAtom;
import org.apache.poi.sl.draw.DrawFactory;
import org.apache.poi.sl.draw.Drawable;
import org.apache.poi.sl.usermodel.Notes;
import org.apache.poi.sl.usermodel.ShapeType;
import org.apache.poi.sl.usermodel.SimpleShape.Placeholder;
import org.apache.poi.sl.usermodel.Slide;
/**
* This class represents a slide in a PowerPoint Document. It allows
* access to the text within, and the layout. For now, it only does
* the text side of things though
*
* @author Nick Burch
* @author Yegor Kozlov
*/
public final class HSLFSlide extends HSLFSheet implements Slide {
private int _slideNo;
private SlideAtomsSet _atomSet;
private final List> _paragraphs = new ArrayList>();
private HSLFNotes _notes; // usermodel needs to set this
/**
* Constructs a Slide from the Slide record, and the SlideAtomsSet
* containing the text.
* Initializes TextRuns, to provide easier access to the text
*
* @param slide the Slide record we're based on
* @param notes the Notes sheet attached to us
* @param atomSet the SlideAtomsSet to get the text from
*/
public HSLFSlide(org.apache.poi.hslf.record.Slide slide, HSLFNotes notes, SlideAtomsSet atomSet, int slideIdentifier, int slideNumber) {
super(slide, slideIdentifier);
_notes = notes;
_atomSet = atomSet;
_slideNo = slideNumber;
// For the text coming in from the SlideAtomsSet:
// Build up TextRuns from pairs of TextHeaderAtom and
// one of TextBytesAtom or TextCharsAtom
if (_atomSet != null && _atomSet.getSlideRecords().length > 0) {
// Grab text from SlideListWithTexts entries
_paragraphs.addAll(HSLFTextParagraph.findTextParagraphs(_atomSet.getSlideRecords()));
if (_paragraphs.isEmpty()) {
throw new RuntimeException("No text records found for slide");
}
} else {
// No text on the slide, must just be pictures
}
// Grab text from slide's PPDrawing
for (List l : HSLFTextParagraph.findTextParagraphs(getPPDrawing(), this)) {
if (!_paragraphs.contains(l)) _paragraphs.add(l);
}
for(List ltp : _paragraphs) {
for (HSLFTextParagraph tp : ltp) {
tp.supplySheet(this);
}
}
}
/**
* Create a new Slide instance
* @param sheetNumber The internal number of the sheet, as used by PersistPtrHolder
* @param slideNumber The user facing number of the sheet
*/
public HSLFSlide(int sheetNumber, int sheetRefId, int slideNumber){
super(new org.apache.poi.hslf.record.Slide(), sheetNumber);
_slideNo = slideNumber;
getSheetContainer().setSheetId(sheetRefId);
}
/**
* Returns the Notes Sheet for this slide, or null if there isn't one
*/
@Override
public HSLFNotes getNotes() {
return _notes;
}
/**
* Sets the Notes that are associated with this. Updates the
* references in the records to point to the new ID
*/
@Override
public void setNotes(Notes notes) {
if (notes != null && !(notes instanceof HSLFNotes)) {
throw new IllegalArgumentException("notes needs to be of type HSLFNotes");
}
_notes = (HSLFNotes)notes;
// Update the Slide Atom's ID of where to point to
SlideAtom sa = getSlideRecord().getSlideAtom();
if(_notes == null) {
// Set to 0
sa.setNotesID(0);
} else {
// Set to the value from the notes' sheet id
sa.setNotesID(_notes._getSheetNumber());
}
}
/**
* Changes the Slide's (external facing) page number.
* @see org.apache.poi.hslf.usermodel.HSLFSlideShow#reorderSlide(int, int)
*/
public void setSlideNumber(int newSlideNumber) {
_slideNo = newSlideNumber;
}
/**
* Called by SlideShow ater a new slide is created.
*
* For Slide we need to do the following:
*
set id of the drawing group.
* set shapeId for the container descriptor and background
*
*/
public void onCreate(){
//initialize drawing group id
EscherDggRecord dgg = getSlideShow().getDocumentRecord().getPPDrawingGroup().getEscherDggRecord();
EscherContainerRecord dgContainer = (EscherContainerRecord)getSheetContainer().getPPDrawing().getEscherRecords()[0];
EscherDgRecord dg = (EscherDgRecord) HSLFShape.getEscherChild(dgContainer, EscherDgRecord.RECORD_ID);
int dgId = dgg.getMaxDrawingGroupId() + 1;
dg.setOptions((short)(dgId << 4));
dgg.setDrawingsSaved(dgg.getDrawingsSaved() + 1);
dgg.setMaxDrawingGroupId(dgId);
for (EscherContainerRecord c : dgContainer.getChildContainers()) {
EscherSpRecord spr = null;
switch(c.getRecordId()){
case EscherContainerRecord.SPGR_CONTAINER:
EscherContainerRecord dc = (EscherContainerRecord)c.getChild(0);
spr = dc.getChildById(EscherSpRecord.RECORD_ID);
break;
case EscherContainerRecord.SP_CONTAINER:
spr = c.getChildById(EscherSpRecord.RECORD_ID);
break;
default:
break;
}
if(spr != null) spr.setShapeId(allocateShapeId());
}
//PPT doen't increment the number of saved shapes for group descriptor and background
dg.setNumShapes(1);
}
/**
* Create a TextBox object that represents the slide's title.
*
* @return TextBox object that represents the slide's title.
*/
public HSLFTextBox addTitle() {
HSLFPlaceholder pl = new HSLFPlaceholder();
pl.setShapeType(ShapeType.RECT);
pl.setPlaceholder(Placeholder.TITLE);
pl.setRunType(TextHeaderAtom.TITLE_TYPE);
pl.setText("Click to edit title");
pl.setAnchor(new java.awt.Rectangle(54, 48, 612, 90));
addShape(pl);
return pl;
}
// Complex Accesser methods follow
/**
*
* The title is a run of text of type TextHeaderAtom.CENTER_TITLE_TYPE or
* TextHeaderAtom.TITLE_TYPE
*
*
* @see TextHeaderAtom
*/
@Override
public String getTitle(){
for (List tp : getTextParagraphs()) {
if (tp.isEmpty()) continue;
int type = tp.get(0).getRunType();
switch (type) {
case TextHeaderAtom.CENTER_TITLE_TYPE:
case TextHeaderAtom.TITLE_TYPE:
String str = HSLFTextParagraph.getRawText(tp);
return HSLFTextParagraph.toExternalString(str, type);
}
}
return null;
}
// Simple Accesser methods follow
/**
* Returns an array of all the TextRuns found
*/
public List> getTextParagraphs() { return _paragraphs; }
/**
* Returns the (public facing) page number of this slide
*/
@Override
public int getSlideNumber() { return _slideNo; }
/**
* Returns the underlying slide record
*/
public org.apache.poi.hslf.record.Slide getSlideRecord() {
return (org.apache.poi.hslf.record.Slide)getSheetContainer();
}
/**
* @return set of records inside SlideListWithtext container
* which hold text data for this slide (typically for placeholders).
*/
protected SlideAtomsSet getSlideAtomsSet() { return _atomSet; }
/**
* Returns master sheet associated with this slide.
* It can be either SlideMaster or TitleMaster objects.
*
* @return the master sheet associated with this slide.
*/
public HSLFMasterSheet getMasterSheet(){
int masterId = getSlideRecord().getSlideAtom().getMasterID();
for (HSLFSlideMaster sm : getSlideShow().getSlideMasters()) {
if (masterId == sm._getSheetNumber()) return sm;
}
for (HSLFTitleMaster tm : getSlideShow().getTitleMasters()) {
if (masterId == tm._getSheetNumber()) return tm;
}
return null;
}
/**
* Change Master of this slide.
*/
public void setMasterSheet(HSLFMasterSheet master){
SlideAtom sa = getSlideRecord().getSlideAtom();
int sheetNo = master._getSheetNumber();
sa.setMasterID(sheetNo);
}
/**
* Sets whether this slide follows master background
*
* @param flag true if the slide follows master,
* false otherwise
*/
public void setFollowMasterBackground(boolean flag){
SlideAtom sa = getSlideRecord().getSlideAtom();
sa.setFollowMasterBackground(flag);
}
/**
* Whether this slide follows master sheet background
*
* @return true if the slide follows master background,
* false otherwise
*/
public boolean getFollowMasterBackground(){
SlideAtom sa = getSlideRecord().getSlideAtom();
return sa.getFollowMasterBackground();
}
/**
* Sets whether this slide draws master sheet objects
*
* @param flag true if the slide draws master sheet objects,
* false otherwise
*/
public void setFollowMasterObjects(boolean flag){
SlideAtom sa = getSlideRecord().getSlideAtom();
sa.setFollowMasterObjects(flag);
}
/**
* Whether this slide follows master color scheme
*
* @return true if the slide follows master color scheme,
* false otherwise
*/
public boolean getFollowMasterScheme(){
SlideAtom sa = getSlideRecord().getSlideAtom();
return sa.getFollowMasterScheme();
}
/**
* Sets whether this slide draws master color scheme
*
* @param flag true if the slide draws master color scheme,
* false otherwise
*/
public void setFollowMasterScheme(boolean flag){
SlideAtom sa = getSlideRecord().getSlideAtom();
sa.setFollowMasterScheme(flag);
}
/**
* Whether this slide draws master sheet objects
*
* @return true if the slide draws master sheet objects,
* false otherwise
*/
public boolean getFollowMasterObjects(){
SlideAtom sa = getSlideRecord().getSlideAtom();
return sa.getFollowMasterObjects();
}
/**
* Background for this slide.
*/
public HSLFBackground getBackground() {
if(getFollowMasterBackground()) {
return getMasterSheet().getBackground();
}
return super.getBackground();
}
/**
* Color scheme for this slide.
*/
public ColorSchemeAtom getColorScheme() {
if(getFollowMasterScheme()){
return getMasterSheet().getColorScheme();
}
return super.getColorScheme();
}
/**
* Get the comment(s) for this slide.
* Note - for now, only works on PPT 2000 and
* PPT 2003 files. Doesn't work for PPT 97
* ones, as they do their comments oddly.
*/
public Comment[] getComments() {
// If there are any, they're in
// ProgTags -> ProgBinaryTag -> BinaryTagData
RecordContainer progTags = (RecordContainer)
getSheetContainer().findFirstOfType(
RecordTypes.ProgTags.typeID
);
if(progTags != null) {
RecordContainer progBinaryTag = (RecordContainer)
progTags.findFirstOfType(
RecordTypes.ProgBinaryTag.typeID
);
if(progBinaryTag != null) {
RecordContainer binaryTags = (RecordContainer)
progBinaryTag.findFirstOfType(
RecordTypes.BinaryTagData.typeID
);
if(binaryTags != null) {
// This is where they'll be
int count = 0;
for(int i=0; i newParas = shape.getTextParagraphs();
_paragraphs.add(newParas);
}
/** This will return an atom per TextBox, so if the page has two text boxes the method should return two atoms. */
public StyleTextProp9Atom[] getNumberedListInfo() {
return this.getPPDrawing().getNumberedListInfo();
}
public EscherTextboxWrapper[] getTextboxWrappers() {
return this.getPPDrawing().getTextboxWrappers();
}
public void setHidden(boolean hidden) {
org.apache.poi.hslf.record.Slide cont = getSlideRecord();
SSSlideInfoAtom slideInfo =
(SSSlideInfoAtom)cont.findFirstOfType(RecordTypes.SSSlideInfoAtom.typeID);
if (slideInfo == null) {
slideInfo = new SSSlideInfoAtom();
cont.addChildAfter(slideInfo, cont.findFirstOfType(RecordTypes.SlideAtom.typeID));
}
slideInfo.setEffectTransitionFlagByBit(SSSlideInfoAtom.HIDDEN_BIT, hidden);
}
public boolean getHidden() {
SSSlideInfoAtom slideInfo =
(SSSlideInfoAtom)getSlideRecord().findFirstOfType(RecordTypes.SSSlideInfoAtom.typeID);
return (slideInfo == null)
? false
: slideInfo.getEffectTransitionFlagByBit(SSSlideInfoAtom.HIDDEN_BIT);
}
@Override
public void draw(Graphics2D graphics) {
DrawFactory drawFact = DrawFactory.getInstance(graphics);
Drawable draw = drawFact.getDrawable(this);
draw.draw(graphics);
}
public boolean getFollowMasterColourScheme() {
// TODO Auto-generated method stub
return false;
}
public void setFollowMasterColourScheme(boolean follow) {
// TODO Auto-generated method stub
}
@Override
public boolean getFollowMasterGraphics() {
return getFollowMasterObjects();
}
}
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