mirror of
https://github.com/geometer/FBReaderJ.git
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86 lines
2.7 KiB
C++
86 lines
2.7 KiB
C++
/*
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* Copyright (C) 2004-2015 FBReader.ORG Limited <contact@fbreader.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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#include <ZLLogger.h>
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#include "OleMainStream.h"
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#include "OleUtil.h"
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#include "OleStreamReader.h"
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OleStreamReader::OleStreamReader() : myNextPieceNumber(0) {
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}
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bool OleStreamReader::readDocument(shared_ptr<ZLInputStream> inputStream, bool doReadFormattingData) {
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static const std::string WORD_DOCUMENT = "WordDocument";
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shared_ptr<OleStorage> storage = new OleStorage;
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if (!storage->init(inputStream, inputStream->sizeOfOpened())) {
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ZLLogger::Instance().println("DocPlugin", "Broken OLE file");
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return false;
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}
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OleEntry wordDocumentEntry;
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if (!storage->getEntryByName(WORD_DOCUMENT, wordDocumentEntry)) {
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return false;
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}
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OleMainStream oleStream(storage, wordDocumentEntry, inputStream);
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if (!oleStream.open(doReadFormattingData)) {
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ZLLogger::Instance().println("DocPlugin", "Cannot open OleMainStream");
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return false;
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}
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return readStream(oleStream);
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}
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bool OleStreamReader::readNextPiece(OleMainStream &stream) {
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const OleMainStream::Pieces &pieces = stream.getPieces();
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if (myNextPieceNumber >= pieces.size()) {
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return false;
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}
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const OleMainStream::Piece &piece = pieces.at(myNextPieceNumber);
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if (piece.Type == OleMainStream::Piece::PIECE_FOOTNOTE) {
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footnotesStartHandler();
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} else if (piece.Type == OleMainStream::Piece::PIECE_OTHER) {
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return false;
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}
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if (!stream.seek(piece.Offset, true)) {
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//TODO maybe in that case we should take next piece?
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return false;
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}
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char *textBuffer = new char[piece.Length];
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std::size_t readBytes = stream.read(textBuffer, piece.Length);
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if (readBytes != (std::size_t)piece.Length) {
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ZLLogger::Instance().println("DocPlugin", "not all bytes have been read from piece");
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}
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if (!piece.IsANSI) {
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for (std::size_t i = 0; i < readBytes; i += 2) {
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ucs2SymbolHandler(OleUtil::getU2Bytes(textBuffer, i));
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}
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} else {
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ansiDataHandler(textBuffer, readBytes);
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}
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++myNextPieceNumber;
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delete[] textBuffer;
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return true;
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}
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