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-rw-r--r--fbreader/src/formats/pdb/PluckerImages.cpp80
1 files changed, 80 insertions, 0 deletions
diff --git a/fbreader/src/formats/pdb/PluckerImages.cpp b/fbreader/src/formats/pdb/PluckerImages.cpp
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+++ b/fbreader/src/formats/pdb/PluckerImages.cpp
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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 <ZLFile.h>
+#include <ZLInputStream.h>
+#include <ZLZDecompressor.h>
+#include <ZLStringUtil.h>
+
+#include "PluckerImages.h"
+#include "DocDecompressor.h"
+
+const shared_ptr<std::string> ZCompressedFileImage::stringData() const {
+ shared_ptr<ZLInputStream> stream = myFile.inputStream();
+
+ shared_ptr<std::string> imageData = new std::string();
+
+ if (!stream.isNull() && stream->open()) {
+ stream->seek(myOffset, false);
+ ZLZDecompressor decompressor(myCompressedSize);
+
+ static const std::size_t charBufferSize = 2048;
+ char *charBuffer = new char[charBufferSize];
+ std::vector<std::string> buffer;
+
+ std::size_t s;
+ do {
+ s = decompressor.decompress(*stream, charBuffer, charBufferSize);
+ if (s != 0) {
+ buffer.push_back(std::string());
+ buffer.back().append(charBuffer, s);
+ }
+ } while (s == charBufferSize);
+ ZLStringUtil::append(*imageData, buffer);
+
+ delete[] charBuffer;
+ }
+
+ return imageData;
+}
+
+const shared_ptr<std::string> DocCompressedFileImage::stringData() const {
+ shared_ptr<ZLInputStream> stream = myFile.inputStream();
+
+ shared_ptr<std::string> imageData = new std::string();
+
+ if (!stream.isNull() && stream->open()) {
+ stream->seek(myOffset, false);
+ char *buffer = new char[65535];
+ std::size_t uncompressedSize = DocDecompressor().decompress(*stream, buffer, myCompressedSize, 65535);
+ imageData->append(buffer, uncompressedSize);
+ delete[] buffer;
+ }
+
+ return imageData;
+}
+
+shared_ptr<const ZLImage> PluckerMultiImage::subImage(unsigned int row, unsigned int column) const {
+ unsigned int index = row * myColumns + column;
+ if (index >= myIds.size()) {
+ return 0;
+ }
+ ZLImageMap::const_iterator entry = myImageMap.find(myIds[index]);
+ return (entry != myImageMap.end()) ? entry->second : 0;
+}