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/*
* 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 <cctype>
//#include <cstring>
#include <ZLLogger.h>
#include "OleMainStream.h"
#include "OleUtil.h"
#include "OleStreamParser.h"
//word's control chars:
const ZLUnicodeUtil::Ucs2Char OleStreamParser::WORD_FOOTNOTE_MARK = 0x0002;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::WORD_TABLE_SEPARATOR = 0x0007;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::WORD_HORIZONTAL_TAB = 0x0009;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::WORD_HARD_LINEBREAK = 0x000b;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::WORD_PAGE_BREAK = 0x000c;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::WORD_END_OF_PARAGRAPH = 0x000d;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::WORD_MINUS = 0x001e;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::WORD_SOFT_HYPHEN = 0x001f;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::WORD_START_FIELD = 0x0013;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::WORD_SEPARATOR_FIELD = 0x0014;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::WORD_END_FIELD = 0x0015;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::WORD_ZERO_WIDTH_UNBREAKABLE_SPACE = 0xfeff;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::INLINE_IMAGE = 0x0001;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::FLOAT_IMAGE = 0x0008;
//unicode values:
const ZLUnicodeUtil::Ucs2Char OleStreamParser::NULL_SYMBOL = 0x0;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::FILE_SEPARATOR = 0x1c;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::LINE_FEED = 0x000a;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::SOFT_HYPHEN = 0xad;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::SPACE = 0x20;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::MINUS = 0x2D;
const ZLUnicodeUtil::Ucs2Char OleStreamParser::VERTICAL_LINE = 0x7C;
OleStreamParser::OleStreamParser() {
myCurBufferPosition = 0;
myCurCharPos = 0;
myNextStyleInfoIndex = 0;
myNextCharInfoIndex = 0;
myNextBookmarkIndex = 0;
myNextInlineImageInfoIndex = 0;
myNextFloatImageInfoIndex = 0;
}
bool OleStreamParser::readStream(OleMainStream &oleMainStream) {
ZLUnicodeUtil::Ucs2Char ucs2char;
bool tabMode = false;
while (getUcs2Char(oleMainStream, ucs2char)) {
if (tabMode) {
tabMode = false;
if (ucs2char == WORD_TABLE_SEPARATOR) {
handleTableEndRow();
continue;
} else {
handleTableSeparator();
}
}
if (ucs2char < 32) {
switch (ucs2char) {
case NULL_SYMBOL:
break;
case WORD_HARD_LINEBREAK:
handleHardLinebreak();
break;
case WORD_END_OF_PARAGRAPH:
case WORD_PAGE_BREAK:
handleParagraphEnd();
break;
case WORD_TABLE_SEPARATOR:
tabMode = true;
break;
case WORD_FOOTNOTE_MARK:
handleFootNoteMark();
break;
case WORD_START_FIELD:
handleStartField();
break;
case WORD_SEPARATOR_FIELD:
handleSeparatorField();
break;
case WORD_END_FIELD:
handleEndField();
break;
case INLINE_IMAGE:
case FLOAT_IMAGE:
break;
default:
handleOtherControlChar(ucs2char);
break;
}
} else if (ucs2char == WORD_ZERO_WIDTH_UNBREAKABLE_SPACE) {
continue; //skip
} else {
handleChar(ucs2char);
}
}
return true;
}
bool OleStreamParser::getUcs2Char(OleMainStream &stream, ZLUnicodeUtil::Ucs2Char &ucs2char) {
while (myCurBufferPosition >= myBuffer.size()) {
myBuffer.clear();
myCurBufferPosition = 0;
if (!readNextPiece(stream)) {
return false;
}
}
ucs2char = myBuffer.at(myCurBufferPosition++);
processStyles(stream);
switch (ucs2char) {
case INLINE_IMAGE:
processInlineImage(stream);
break;
case FLOAT_IMAGE:
processFloatImage(stream);
break;
}
++myCurCharPos;
return true;
}
void OleStreamParser::processInlineImage(OleMainStream &stream) {
const OleMainStream::InlineImageInfoList &imageInfoList = stream.getInlineImageInfoList();
if (imageInfoList.empty()) {
return;
}
//seek to curCharPos, because not all entries are real pictures
while(myNextInlineImageInfoIndex < imageInfoList.size() && imageInfoList.at(myNextInlineImageInfoIndex).first < myCurCharPos) {
++myNextInlineImageInfoIndex;
}
while (myNextInlineImageInfoIndex < imageInfoList.size() && imageInfoList.at(myNextInlineImageInfoIndex).first == myCurCharPos) {
OleMainStream::InlineImageInfo info = imageInfoList.at(myNextInlineImageInfoIndex).second;
ZLFileImage::Blocks list = stream.getInlineImage(info.DataPosition);
if (!list.empty()) {
handleImage(list);
}
++myNextInlineImageInfoIndex;
}
}
void OleStreamParser::processFloatImage(OleMainStream &stream) {
const OleMainStream::FloatImageInfoList &imageInfoList = stream.getFloatImageInfoList();
if (imageInfoList.empty()) {
return;
}
//seek to curCharPos, because not all entries are real pictures
while(myNextFloatImageInfoIndex < imageInfoList.size() && imageInfoList.at(myNextFloatImageInfoIndex).first < myCurCharPos) {
++myNextFloatImageInfoIndex;
}
while (myNextFloatImageInfoIndex < imageInfoList.size() && imageInfoList.at(myNextFloatImageInfoIndex).first == myCurCharPos) {
OleMainStream::FloatImageInfo info = imageInfoList.at(myNextFloatImageInfoIndex).second;
ZLFileImage::Blocks list = stream.getFloatImage(info.ShapeId);
if (!list.empty()) {
handleImage(list);
}
++myNextFloatImageInfoIndex;
}
}
void OleStreamParser::processStyles(OleMainStream &stream) {
const OleMainStream::StyleInfoList &styleInfoList = stream.getStyleInfoList();
if (!styleInfoList.empty()) {
while (myNextStyleInfoIndex < styleInfoList.size() && styleInfoList.at(myNextStyleInfoIndex).first == myCurCharPos) {
OleMainStream::Style info = styleInfoList.at(myNextStyleInfoIndex).second;
handleParagraphStyle(info);
++myNextStyleInfoIndex;
}
}
const OleMainStream::CharInfoList &charInfoList = stream.getCharInfoList();
if (!charInfoList.empty()) {
while (myNextCharInfoIndex < charInfoList.size() && charInfoList.at(myNextCharInfoIndex).first == myCurCharPos) {
OleMainStream::CharInfo info = charInfoList.at(myNextCharInfoIndex).second;
handleFontStyle(info.FontStyle);
++myNextCharInfoIndex;
}
}
const OleMainStream::BookmarksList &bookmarksList = stream.getBookmarks();
if (!bookmarksList.empty()) {
while (myNextBookmarkIndex < bookmarksList.size() && bookmarksList.at(myNextBookmarkIndex).CharPosition == myCurCharPos) {
OleMainStream::Bookmark bookmark = bookmarksList.at(myNextBookmarkIndex);
handleBookmark(bookmark.Name);
++myNextBookmarkIndex;
}
}
}
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