diff options
Diffstat (limited to 'reader/src/formats/doc/OleStreamReader.cpp')
-rw-r--r-- | reader/src/formats/doc/OleStreamReader.cpp | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/reader/src/formats/doc/OleStreamReader.cpp b/reader/src/formats/doc/OleStreamReader.cpp new file mode 100644 index 0000000..224489a --- /dev/null +++ b/reader/src/formats/doc/OleStreamReader.cpp @@ -0,0 +1,86 @@ +/* + * Copyright (C) 2004-2012 Geometer Plus <[email protected]> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#include <ZLLogger.h> + +#include "OleMainStream.h" +#include "OleUtil.h" +#include "OleStreamReader.h" + +OleStreamReader::OleStreamReader() : myNextPieceNumber(0) { +} + +bool OleStreamReader::readDocument(shared_ptr<ZLInputStream> inputStream, bool doReadFormattingData) { + static const std::string WORD_DOCUMENT = "WordDocument"; + + shared_ptr<OleStorage> storage = new OleStorage; + + if (!storage->init(inputStream, inputStream->sizeOfOpened())) { + ZLLogger::Instance().println("DocPlugin", "Broken OLE file"); + return false; + } + + OleEntry wordDocumentEntry; + if (!storage->getEntryByName(WORD_DOCUMENT, wordDocumentEntry)) { + return false; + } + + OleMainStream oleStream(storage, wordDocumentEntry, inputStream); + if (!oleStream.open(doReadFormattingData)) { + ZLLogger::Instance().println("DocPlugin", "Cannot open OleMainStream"); + return false; + } + return readStream(oleStream); +} + +bool OleStreamReader::readNextPiece(OleMainStream &stream) { + const OleMainStream::Pieces &pieces = stream.getPieces(); + if (myNextPieceNumber >= pieces.size()) { + return false; + } + const OleMainStream::Piece &piece = pieces.at(myNextPieceNumber); + + if (piece.Type == OleMainStream::Piece::PIECE_FOOTNOTE) { + footnotesStartHandler(); + } else if (piece.Type == OleMainStream::Piece::PIECE_OTHER) { + return false; + } + + if (!stream.seek(piece.Offset, true)) { + //TODO maybe in that case we should take next piece? + return false; + } + char *textBuffer = new char[piece.Length]; + std::size_t readBytes = stream.read(textBuffer, piece.Length); + if (readBytes != (std::size_t)piece.Length) { + ZLLogger::Instance().println("DocPlugin", "not all bytes have been read from piece"); + } + + if (!piece.IsANSI) { + for (std::size_t i = 0; i < readBytes; i += 2) { + ucs2SymbolHandler(OleUtil::getU2Bytes(textBuffer, i)); + } + } else { + ansiDataHandler(textBuffer, readBytes); + } + ++myNextPieceNumber; + delete[] textBuffer; + + return true; +} |