/* (non-Javadoc)
* @see de.offis.health.icardea.cied.pdf.interfaces.PDFExtractor#getBookmarkContentAsText()
*/
@SuppressWarnings("unchecked")
public java.util.List getBookmarkTitlesAsText() {
java.util.List bookmarkContent = null;
if (pdfReader != null) {
// bookmarkContent = SimpleBookmark.getBookmark(pdfReader);
PdfDictionary catalog = pdfReader.getCatalog();
if (catalog != null) {
PdfObject rootPdfObject = PdfReader.getPdfObjectRelease(catalog.get(PdfName.OUTLINES));
if (rootPdfObject != null && rootPdfObject.isDictionary()) {
PdfDictionary rootOutlinesPdfDictionary = (PdfDictionary) rootPdfObject;
/*
* If it doesn't exist create the List and populate it,
* otherwise just return the already existing List.
*/
if (bookmarkTextList == null) {
bookmarkTextList = new ArrayList<String>();
// Populate the List
populateBookmarkTextList(rootOutlinesPdfDictionary, "");
} // end if
}
} // end if
}
return bookmarkContent;
}
/**
* Stores the next object of the XRef table. As soon as this method returns false, it makes no
* longer sense calling it as all the objects have been stored.
*
* @return false if there are no objects left to check.
*/
public boolean storeNextObject() {
while (current < n) {
current++;
PdfObject object = reader.getPdfObjectRelease(current);
if (object != null) {
int idx = size();
idxToRef.put(idx, current);
refToIdx.put(current, idx);
store(object);
return true;
}
}
return false;
}
/**
* This method will populate the text bookmark list.
*
* @param rootOutlinesPdfDictionary The node element for the bookmark item.
* @param indentionString The base indention string to be used.
*/
@SuppressWarnings("unchecked")
private void populateBookmarkTextList(
PdfDictionary rootOutlinesPdfDictionary, String indentionString) {
PdfDictionary outlineItemPdfDictionary =
(PdfDictionary) PdfReader.getPdfObjectRelease(rootOutlinesPdfDictionary.get(PdfName.FIRST));
while (outlineItemPdfDictionary != null) {
PdfString bookmarkTitle =
(PdfString) PdfReader.getPdfObjectRelease(outlineItemPdfDictionary.get(PdfName.TITLE));
bookmarkTextList.add(indentionString + bookmarkTitle.toUnicodeString());
logger.trace(indentionString + bookmarkTitle.toUnicodeString());
/*
* Recursive call to fill List
*/
populateBookmarkTextList(
outlineItemPdfDictionary, indentionString + bookmarkIndentionString());
/*
* Get next outline item
*/
outlineItemPdfDictionary =
(PdfDictionary) PdfReader.getPdfObjectRelease(outlineItemPdfDictionary.get(PdfName.NEXT));
} // end while
}
