merger.py 文件源码

def addBookmark(self, title, pagenum, parent=None):
        """
        Add a bookmark to this PDF file.

        :param str title: Title to use for this bookmark.
        :param int pagenum: Page number this bookmark will point to.
        :param parent: A reference to a parent bookmark to create nested
            bookmarks.
        """
        if parent == None:
            iloc = [len(self.bookmarks)-1]
        elif isinstance(parent, list):
            iloc = parent
        else:
            iloc = self.findBookmark(parent)

        dest = Bookmark(TextStringObject(title), NumberObject(pagenum), NameObject('/FitH'), NumberObject(826))

        if parent == None:
            self.bookmarks.append(dest)
        else:
            bmparent = self.bookmarks
            for i in iloc[:-1]:
                bmparent = bmparent[i]
            npos = iloc[-1]+1
            if npos < len(bmparent) and isinstance(bmparent[npos], list):
                bmparent[npos].append(dest)
            else:
                bmparent.insert(npos, [dest])
        return dest