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authorMichele Calgaro <michele.calgaro@yahoo.it>2024-06-07 23:30:05 +0900
committerMichele Calgaro <michele.calgaro@yahoo.it>2024-06-07 23:30:05 +0900
commit17b259df9cb6b28779d4881b2b6c805ee2e48eea (patch)
tree5ed61937459cb7081089111b0242c01ec178f1f3 /reader/src/formats/rtf/RtfReaderStream.cpp
parent1cba8bce178eb2d6719c6f7f21e2c9352c5513a6 (diff)
downloadtde-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/RtfReaderStream.cpp')
-rw-r--r--reader/src/formats/rtf/RtfReaderStream.cpp175
1 files changed, 175 insertions, 0 deletions
diff --git a/reader/src/formats/rtf/RtfReaderStream.cpp b/reader/src/formats/rtf/RtfReaderStream.cpp
new file mode 100644
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+++ b/reader/src/formats/rtf/RtfReaderStream.cpp
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+/*
+ * 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 <cstring>
+#include <cstdlib>
+#include <string>
+
+#include "RtfReader.h"
+#include "RtfReaderStream.h"
+
+class RtfTextOnlyReader : public RtfReader {
+
+public:
+ RtfTextOnlyReader(char *buffer, std::size_t maxSize);
+ ~RtfTextOnlyReader();
+ std::size_t readSize() const;
+
+protected:
+ void addCharData(const char *data, std::size_t len, bool convert);
+ void insertImage(shared_ptr<ZLMimeType> mimeType, const std::string &fileName, std::size_t startOffset, std::size_t size);
+ void setEncoding(int code);
+ void switchDestination(DestinationType destination, bool on);
+ void setAlignment();
+ void setFontProperty(FontProperty property);
+ void newParagraph();
+
+ void interrupt();
+
+private:
+ struct RtfTextOnlyReaderState {
+ bool ReadText;
+ };
+
+ RtfTextOnlyReaderState myCurrentState;
+
+private:
+ char* myBuffer;
+ const std::size_t myMaxSize;
+ std::size_t myFilledSize;
+};
+
+RtfTextOnlyReader::RtfTextOnlyReader(char *buffer, std::size_t maxSize) : RtfReader(std::string()), myBuffer(buffer), myMaxSize(maxSize), myFilledSize(0) {
+ myCurrentState.ReadText = true;
+}
+
+RtfTextOnlyReader::~RtfTextOnlyReader() {
+}
+
+void RtfTextOnlyReader::addCharData(const char *data, std::size_t len, bool) {
+ if (myBuffer == 0) {
+ return;
+ }
+ if (myCurrentState.ReadText) {
+ if (myFilledSize < myMaxSize) {
+ len = std::min((std::size_t)len, myMaxSize - myFilledSize);
+ std::memcpy(myBuffer + myFilledSize, data, len);
+ myFilledSize += len;
+ }
+ if (myFilledSize < myMaxSize) {
+ myBuffer[myFilledSize++]=' ';
+ } else {
+ interrupt();
+ }
+ }
+}
+
+std::size_t RtfTextOnlyReader::readSize() const {
+ return myFilledSize;
+}
+
+void RtfTextOnlyReader::insertImage(shared_ptr<ZLMimeType>, const std::string&, std::size_t, std::size_t) {
+}
+
+void RtfTextOnlyReader::setEncoding(int) {
+}
+
+void RtfTextOnlyReader::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:
+ myCurrentState.ReadText = !on;
+ break;
+ case DESTINATION_FOOTNOTE:
+ if (on) {
+ myCurrentState.ReadText = true;
+ }
+ break;
+ }
+}
+
+void RtfTextOnlyReader::setAlignment() {
+}
+
+void RtfTextOnlyReader::setFontProperty(FontProperty) {
+}
+
+void RtfTextOnlyReader::newParagraph() {
+}
+
+void RtfTextOnlyReader::interrupt() {
+}
+
+RtfReaderStream::RtfReaderStream(const ZLFile& file, std::size_t maxSize) : myFile(file), myBuffer(0), mySize(maxSize) {
+}
+
+RtfReaderStream::~RtfReaderStream() {
+ close();
+}
+
+bool RtfReaderStream::open() {
+ if (mySize != 0) {
+ myBuffer = new char[mySize];
+ }
+ RtfTextOnlyReader reader(myBuffer, mySize);
+ reader.readDocument(myFile);
+ mySize = reader.readSize();
+ myOffset = 0;
+ return true;
+}
+
+std::size_t RtfReaderStream::read(char *buffer, std::size_t maxSize) {
+ maxSize = std::min(maxSize, mySize - myOffset);
+ if ((buffer != 0) && (myBuffer !=0)) {
+ std::memcpy(buffer, myBuffer + myOffset, maxSize);
+ }
+ myOffset += maxSize;
+ return maxSize;
+}
+
+void RtfReaderStream::close() {
+ if (myBuffer != 0) {
+ delete[] myBuffer;
+ myBuffer = 0;
+ }
+}
+
+void RtfReaderStream::seek(int offset, bool absoluteOffset) {
+ if (!absoluteOffset) {
+ offset += myOffset;
+ }
+ myOffset = std::min(mySize, (std::size_t)std::max(0, offset));
+}
+
+std::size_t RtfReaderStream::offset() const {
+ return myOffset;
+}
+
+std::size_t RtfReaderStream::sizeOfOpened() {
+ return mySize;
+}
+