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| author | Michele Calgaro <michele.calgaro@yahoo.it> | 2024-06-07 23:30:05 +0900 |
|---|---|---|
| committer | Michele Calgaro <michele.calgaro@yahoo.it> | 2024-06-07 23:30:05 +0900 |
| commit | 17b259df9cb6b28779d4881b2b6c805ee2e48eea (patch) | |
| tree | 5ed61937459cb7081089111b0242c01ec178f1f3 /reader/src/formats/rtf/RtfBookReader.cpp | |
| parent | 1cba8bce178eb2d6719c6f7f21e2c9352c5513a6 (diff) | |
| download | tde-ebook-reader-17b259df9cb6b28779d4881b2b6c805ee2e48eea.tar.gz tde-ebook-reader-17b259df9cb6b28779d4881b2b6c805ee2e48eea.zip | |
Rename to tde-ebook-reader
Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
Diffstat (limited to 'reader/src/formats/rtf/RtfBookReader.cpp')
| -rw-r--r-- | reader/src/formats/rtf/RtfBookReader.cpp | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/reader/src/formats/rtf/RtfBookReader.cpp b/reader/src/formats/rtf/RtfBookReader.cpp new file mode 100644 index 0000000..cf16bc7 --- /dev/null +++ b/reader/src/formats/rtf/RtfBookReader.cpp @@ -0,0 +1,232 @@ +/* + * Copyright (C) 2004-2012 Geometer Plus <contact@geometerplus.com> + * + * 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 <ZLStringUtil.h> +#include <ZLFileImage.h> +#include <ZLTextStyleEntry.h> + +#include "RtfBookReader.h" +#include "../../bookmodel/BookModel.h" + +RtfBookReader::RtfBookReader(BookModel &model, const std::string &encoding) : RtfReader(encoding), myBookReader(model) { +} + +static const std::size_t maxBufferSize = 1024; + +void RtfBookReader::addCharData(const char *data, std::size_t len, bool convert) { + if (myCurrentState.ReadText) { + if (convert || myConverter.isNull()) { + myOutputBuffer.append(data, len); + if (myOutputBuffer.size() >= maxBufferSize) { + flushBuffer(); + } + } else { + flushBuffer(); + std::string newString(data, len); + characterDataHandler(newString); + } + } +} + +void RtfBookReader::flushBuffer() { + if (!myOutputBuffer.empty()) { + if (myCurrentState.ReadText) { + if (!myConverter.isNull()) { + static std::string newString; + myConverter->convert(newString, myOutputBuffer.data(), myOutputBuffer.data() + myOutputBuffer.length()); + characterDataHandler(newString); + newString.erase(); + } else { + characterDataHandler(myOutputBuffer); + } + } + myOutputBuffer.erase(); + } +} + +void RtfBookReader::switchDestination(DestinationType destination, bool on) { + switch (destination) { + case DESTINATION_NONE: + break; + case DESTINATION_SKIP: + case DESTINATION_INFO: + case DESTINATION_TITLE: + case DESTINATION_AUTHOR: + case DESTINATION_STYLESHEET: + myCurrentState.ReadText = !on; + break; + case DESTINATION_PICTURE: + if (on) { + flushBuffer(); + if (myBookReader.paragraphIsOpen()) { + myBookReader.endParagraph(); + } + } + myCurrentState.ReadText = !on; + break; + case DESTINATION_FOOTNOTE: + flushBuffer(); + if (on) { + std::string id; + ZLStringUtil::appendNumber(id, myFootnoteIndex++); + + myStateStack.push(myCurrentState); + myCurrentState.Id = id; + myCurrentState.ReadText = true; + + myBookReader.addHyperlinkControl(FOOTNOTE, id); + myBookReader.addData(id); + myBookReader.addControl(FOOTNOTE, false); + + myBookReader.setFootnoteTextModel(id); + myBookReader.addHyperlinkLabel(id); + myBookReader.pushKind(REGULAR); + myBookReader.beginParagraph(); + } else { + myBookReader.endParagraph(); + myBookReader.popKind(); + + if (!myStateStack.empty()) { + myCurrentState = myStateStack.top(); + myStateStack.pop(); + } + + if (myStateStack.empty()) { + myBookReader.setMainTextModel(); + } else { + myBookReader.setFootnoteTextModel(myCurrentState.Id); + } + } + break; + } +} + +void RtfBookReader::insertImage(shared_ptr<ZLMimeType> mimeType, const std::string &fileName, std::size_t startOffset, std::size_t size) { + std::string id; + ZLStringUtil::appendNumber(id, myImageIndex++); + myBookReader.addImageReference(id); + const ZLFile file(fileName, mimeType); + myBookReader.addImage(id, new ZLFileImage(file, startOffset, size, ZLFileImage::ENCODING_HEX)); +} + +bool RtfBookReader::characterDataHandler(std::string &str) { + if (myCurrentState.ReadText) { + if (!myBookReader.paragraphIsOpen()) { + myBookReader.beginParagraph(); + } + myBookReader.addData(str); + } + return true; +} + +bool RtfBookReader::readDocument(const ZLFile &file) { + myImageIndex = 0; + myFootnoteIndex = 1; + + myCurrentState.ReadText = true; + + myBookReader.setMainTextModel(); + myBookReader.pushKind(REGULAR); + myBookReader.beginParagraph(); + + bool code = RtfReader::readDocument(file); + + flushBuffer(); + myBookReader.endParagraph(); + while (!myStateStack.empty()) { + myStateStack.pop(); + } + + return code; +} + +void RtfBookReader::setFontProperty(FontProperty property) { + if (!myCurrentState.ReadText) { + //DPRINT("change style not in text.\n"); + return; + } + flushBuffer(); + + switch (property) { + case FONT_BOLD: + if (myState.Bold) { + myBookReader.pushKind(STRONG); + } else { + myBookReader.popKind(); + } + myBookReader.addControl(STRONG, myState.Bold); + break; + case FONT_ITALIC: + if (myState.Italic) { + if (!myState.Bold) { + //DPRINT("add style emphasis.\n"); + myBookReader.pushKind(EMPHASIS); + myBookReader.addControl(EMPHASIS, true); + } else { + //DPRINT("add style emphasis and strong.\n"); + myBookReader.popKind(); + myBookReader.addControl(STRONG, false); + + myBookReader.pushKind(EMPHASIS); + myBookReader.addControl(EMPHASIS, true); + myBookReader.pushKind(STRONG); + myBookReader.addControl(STRONG, true); + } + } else { + if (!myState.Bold) { + //DPRINT("remove style emphasis.\n"); + myBookReader.addControl(EMPHASIS, false); + myBookReader.popKind(); + } else { + //DPRINT("remove style strong n emphasis, add strong.\n"); + myBookReader.addControl(STRONG, false); + myBookReader.popKind(); + myBookReader.addControl(EMPHASIS, false); + myBookReader.popKind(); + + myBookReader.pushKind(STRONG); + myBookReader.addControl(STRONG, true); + } + } + break; + case FONT_UNDERLINED: + break; + } +} + +void RtfBookReader::newParagraph() { + flushBuffer(); + myBookReader.endParagraph(); + myBookReader.beginParagraph(); + if (myState.Alignment != ALIGN_UNDEFINED) { + setAlignment(); + } +} + +void RtfBookReader::setEncoding(int) { +} + +void RtfBookReader::setAlignment() { + ZLTextStyleEntry entry(ZLTextStyleEntry::STYLE_OTHER_ENTRY); + entry.setAlignmentType(myState.Alignment); + myBookReader.addStyleEntry(entry); + // TODO: call addStyleCloseEntry somewhere (?) +} |
