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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;
}
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