Fix for adding multiple slides

git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@388929 13f79535-47bb-0310-9956-ffa450edef68

src/scratchpad/src/org/apache/poi/hslf/record/Document.java

@@ -71,7 +71,7 @@ public class Document extends PositionDependentRecordContainer
 
 		// Find our children
 		_children = Record.findChildRecords(source,start+8,len-8);
-		
+
 		// Our first one should be a document atom
 		if(! (_children[0] instanceof DocumentAtom)) {
 			throw new IllegalStateException("The first child of a Document must be a DocumentAtom");
@@ -102,6 +102,28 @@ public class Document extends PositionDependentRecordContainer
 			}
 		}
 	}
+	
+	/**
+	 * Adds a new SlideListWithText record, at the appropriate 
+	 *  point
+	 */
+	public void addSlideListWithText(SlideListWithText slwt) {
+		// The new SlideListWithText should go in 
+		//  just before the EndDocumentRecord
+		Record endDoc = _children[_children.length - 1];
+		if(endDoc.getRecordType() != RecordTypes.EndDocument.typeID) {
+			throw new IllegalStateException("The last child record of a Document should be EndDocument, but it was " + endDoc);
+		}
+		
+		// Add in the record
+		addChildBefore(slwt, endDoc);
+			
+		// Updated our cached list of SlideListWithText records
+		SlideListWithText[] nl = new SlideListWithText[slwts.length + 1];
+		System.arraycopy(slwts, 0, nl, 0, slwts.length);
+		nl[nl.length-1] = slwt;
+		slwts = nl;
+	}
 
 
 	/**

src/scratchpad/src/org/apache/poi/hslf/record/PersistPtrHolder.java

@@ -90,11 +90,17 @@ public class PersistPtrHolder extends PositionDependentRecordAtom
 	 * For now, won't look for the most optimal on disk representation.
 	 */
 	public void addSlideLookup(int slideID, int posOnDisk) {
+		// PtrData grows by 8 bytes:
+		//  4 bytes for the new info block
+		//  4 bytes for the slide offset
 		byte[] newPtrData = new byte[_ptrData.length + 8];
 		System.arraycopy(_ptrData,0,newPtrData,0,_ptrData.length);
 
-		// Add to the lookup hash
+		// Add to the slide location lookup hash
 		_slideLocations.put(new Integer(slideID), new Integer(posOnDisk));
+		// Add to the ptrData offset lookup hash
+		_slideOffsetDataLocation.put(new Integer(slideID), 
+				new Integer(_ptrData.length + 4));
 
 		// Build the info block
 		// First 20 bits = offset number = slide ID
@@ -111,10 +117,6 @@ public class PersistPtrHolder extends PositionDependentRecordAtom
 
 		// Update the atom header
 		LittleEndian.putInt(_header,4,newPtrData.length);
-		
-		// Update info (first 4 bytes in ptr data)
-		int info = (slideID << 20 | 1);
-		LittleEndian.putInt(_ptrData, 0, info);
 	}
 
 	/** 

src/scratchpad/src/org/apache/poi/hslf/record/SlideListWithText.java

@@ -19,7 +19,6 @@
 package org.apache.poi.hslf.record;
 
 import org.apache.poi.util.LittleEndian;
-import org.apache.poi.hslf.model.Sheet;
 
 import java.io.IOException;
 import java.io.OutputStream;
@@ -106,7 +105,27 @@ public class SlideListWithText extends RecordContainer
 		LittleEndian.putUShort(_header, 2, (int)_type);
 		LittleEndian.putInt(_header, 4, 0);
 
+		// We have no children to start with 
 		_children = new Record[0];
+		slideAtomsSets = new SlideAtomsSet[0];
+	}
+	
+	/**
+	 * Add a new SlidePersistAtom, to the end of the current list,
+	 *  and update the internal list of SlidePersistAtoms
+	 * @param spa
+	 */
+	public void addSlidePersistAtom(SlidePersistAtom spa) {
+		// Add the new SlidePersistAtom at the end
+		appendChildRecord(spa);
+		
+		SlideAtomsSet newSAS = new SlideAtomsSet(spa, new Record[0]);
+		
+		// Update our SlideAtomsSets with this
+		SlideAtomsSet[] sas = new SlideAtomsSet[slideAtomsSets.length+1];
+		System.arraycopy(slideAtomsSets, 0, sas, 0, slideAtomsSets.length);
+		sas[sas.length-1] = newSAS;
+		slideAtomsSets = sas;
 	}
 
 	/**

src/scratchpad/src/org/apache/poi/hslf/usermodel/SlideShow.java

@@ -476,24 +476,27 @@ public class SlideShow
   		} else {
   			// Need to add a new one
   			slist = new SlideListWithText();
-  			
-  			// Goes in just before the EndDocumentRecord
-  			Record[] docChildren = _documentRecord.getChildRecords();
-  			Record endDoc = docChildren[docChildren.length - 1];
-  			if(endDoc.getRecordType() != RecordTypes.EndDocument.typeID) {
-  				throw new IllegalStateException("The last child record of a Document should be EndDocument, but it was " + endDoc);
-  			}
-  			_documentRecord.addChildBefore(slist, endDoc);
+  			_documentRecord.addSlideListWithText(slist);
+  			slwts = _documentRecord.getSlideListWithTexts();
   		}
 
-  		// Grab the last SlidePersistAtom, if there was one
+  		// Grab the SlidePersistAtom with the highest Slide Number.
+  		// (Will stay as null if no SlidePersistAtom exists yet in
+  		//  the slide)
   		SlidePersistAtom prev = null;
-  		SlideAtomsSet[] sas = slist.getSlideAtomsSets(); 
-  		if(sas != null && sas.length > 0) {
-  			prev = sas[sas.length - 1].getSlidePersistAtom();
+  		for(int i=0; i<slwts.length; i++) {
+  			SlideAtomsSet[] sas = slwts[i].getSlideAtomsSets();
+  			for(int j=0; j<sas.length; j++) {
+  				SlidePersistAtom spa = sas[j].getSlidePersistAtom();
+  				if(prev == null) { prev = spa; }
+  				if(prev.getSlideIdentifier() < spa.getSlideIdentifier()) {
+  					prev = spa;
+  				}
+  	  			System.err.println("Prev is " + prev.getRefID());
+  			}
   		}
   		
-  		// Add a new SlidePersistAtom
+  		// Set up a new  SlidePersistAtom for this slide 
   		SlidePersistAtom sp = new SlidePersistAtom();
 
   		// Refernce is the 1-based index of the slide container in 
@@ -505,7 +508,8 @@ public class SlideShow
   		sp.setSlideIdentifier(prev == null ? 256 : (prev.getSlideIdentifier() + 1));
   		
   		// Add this new SlidePersistAtom to the SlideListWithText
-  		slist.appendChildRecord(sp);
+  		slist.addSlidePersistAtom(sp);
+  		
   		
   		// Create a new Slide
   		Slide slide = new Slide();
@@ -515,9 +519,10 @@ public class SlideShow
   		_slides = s;
   		System.out.println("Added slide " + _slides.length + " with ref " + sp.getRefID() + " and identifier " + sp.getSlideIdentifier());
   		
-  		// Add in to the core records
+  		// 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;
@@ -544,15 +549,9 @@ public class SlideShow
   		}
   		
 		// Add the new slide into the last PersistPtr
+  		// (Also need to tell it where it is)
 		slideRecord.setLastOnDiskOffset(slideOffset);
-		int id = sp.getRefID();
-		ptr.getSlideOffsetDataLocationsLookup().put(
-				new Integer(id), 
-				new Integer((slideRecordPos+1)*4)
-		);
-		ptr.getSlideLocationsLookup().put(
-				new Integer(id), new Integer(slideOffset));
-		ptr.addSlideLookup(id, slideOffset);
+		ptr.addSlideLookup(sp.getRefID(), slideOffset);
 		System.out.println("New slide ended up at " + slideOffset);
 
 		// Last view is now of the slide