diff options
Diffstat (limited to 'fbreader/src/formats/doc/DocInlineImageReader.cpp')
| -rw-r--r-- | fbreader/src/formats/doc/DocInlineImageReader.cpp | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/fbreader/src/formats/doc/DocInlineImageReader.cpp b/fbreader/src/formats/doc/DocInlineImageReader.cpp deleted file mode 100644 index 69ce74f..0000000 --- a/fbreader/src/formats/doc/DocInlineImageReader.cpp +++ /dev/null @@ -1,148 +0,0 @@ -/* - * 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 "OleUtil.h" -#include "OleMainStream.h" - -#include "DocInlineImageReader.h" - -DocInlineImageReader::DocInlineImageReader(shared_ptr<OleStream> dataStream) : - myDataStream(dataStream) { -} - -ZLFileImage::Blocks DocInlineImageReader::getImagePieceInfo(unsigned int dataPos) { - if (myDataStream.isNull()) { - return ZLFileImage::Blocks(); - } - if (!myDataStream->seek(dataPos, true)) { - return ZLFileImage::Blocks(); - } - - //reading PICF structure (see p. 421 [MS-DOC]) - unsigned int picfHeaderSize = 4 + 2 + 8; //record length, headerLength and storage format - char headerBuffer[picfHeaderSize]; - if (myDataStream->read(headerBuffer, picfHeaderSize) != picfHeaderSize) { - return ZLFileImage::Blocks(); - } - unsigned int length = OleUtil::getU4Bytes(headerBuffer, 0); - unsigned int headerLength = OleUtil::getU2Bytes(headerBuffer, 4); - unsigned int formatType = OleUtil::getU2Bytes(headerBuffer, 6); - - if (formatType != 0x0064) { //external link to some file; see p.394 [MS-DOC] - //TODO implement - return ZLFileImage::Blocks(); - } - if (headerLength >= length) { - return ZLFileImage::Blocks(); - } - - //reading OfficeArtInlineSpContainer structure; see p.421 [MS-DOC] and p.56 [MS-ODRAW] - if (!myDataStream->seek(headerLength - picfHeaderSize, false)) { //skip header - return ZLFileImage::Blocks(); - } - - char buffer[8]; //for OfficeArtRecordHeader structure; see p.69 [MS-ODRAW] - bool found = false; - unsigned int curOffset = 0; - for (curOffset = headerLength; !found && curOffset + 8 <= length; curOffset += 8) { - if (myDataStream->read(buffer, 8) != 8) { - return ZLFileImage::Blocks(); - } - unsigned int recordInstance = OleUtil::getU2Bytes(buffer, 0) >> 4; - unsigned int recordType = OleUtil::getU2Bytes(buffer, 2); - unsigned int recordLen = OleUtil::getU4Bytes(buffer, 4); - - switch (recordType) { - case 0xF000: case 0xF001: case 0xF002: case 0xF003: case 0xF004: case 0xF005: - break; - case 0xF007: - { - myDataStream->seek(33, false); - char tmpBuf[1]; - myDataStream->read(tmpBuf, 1); - unsigned int nameLength = OleUtil::getU1Byte(tmpBuf, 0); - myDataStream->seek(nameLength * 2 + 2, false); - curOffset += 33 + 1 + nameLength * 2 + 2; - } - break; - case 0xF008: - myDataStream->seek(8, false); - curOffset += 8; - break; - case 0xF009: - myDataStream->seek(16, false); - curOffset += 16; - break; - case 0xF006: case 0xF00A: case 0xF00B: case 0xF00D: case 0xF00E: case 0xF00F: case 0xF010: case 0xF011: case 0xF122: - myDataStream->seek(recordLen, false); - curOffset += recordLen; - break; - case OleMainStream::IMAGE_EMF: - case OleMainStream::IMAGE_WMF: - case OleMainStream::IMAGE_PICT: - //TODO implement - return ZLFileImage::Blocks(); - case OleMainStream::IMAGE_JPEG: - case OleMainStream::IMAGE_JPEG2: - myDataStream->seek(17, false); - curOffset += 17; - if (recordInstance == 0x46B || recordInstance == 0x6E3) { - myDataStream->seek(16, false); - curOffset += 16; - } - found = true; - break; - case OleMainStream::IMAGE_PNG: - myDataStream->seek(17, false); - curOffset += 17; - if (recordInstance == 0x6E1) { - myDataStream->seek(16, false); - curOffset += 16; - } - found = true; - break; - case OleMainStream::IMAGE_DIB: // DIB = BMP without 14-bytes header - myDataStream->seek(17, false); - curOffset += 17; - if (recordInstance == 0x7A9) { - myDataStream->seek(16, false); - curOffset += 16; - } - found = true; - break; - case OleMainStream::IMAGE_TIFF: - myDataStream->seek(17, false); - curOffset += 17; - if (recordInstance == 0x6E5) { - myDataStream->seek(16, false); - curOffset += 16; - } - found = true; - break; - case 0xF00C: - default: - return ZLFileImage::Blocks(); - } - } - - if (!found) { - return ZLFileImage::Blocks(); - } - return myDataStream->getBlockPieceInfoList(dataPos + curOffset, length - curOffset); -} |