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/**************************************************************************
* *
* Regina - A Normal Surface Theory Calculator *
* Computational Engine *
* *
* Copyright (c) 1999-2009, Ben Burton *
* For further details contact Ben Burton (bab@debian.org). *
* *
* 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 St, Fifth Floor, Boston, *
* MA 02110-1301, USA. *
* *
**************************************************************************/
/* end stub */
#include "packet/npdf.h"
#include "utilities/base64.h"
#include "utilities/xmlutils.h"
#define BASE64_LINE_LEN 76
namespace regina {
void NPDF::reset() {
if (data_) {
if (alloc_ == OWN_MALLOC)
::free(data_);
else
delete[] data_;
}
data_ = 0;
size_ = 0;
alloc_ = OWN_NEW;
fireChangedEvent();
}
void NPDF::reset(char* data, size_t size, OwnershipPolicy alloc) {
// Out with the old data.
if (data_) {
if (alloc_ == OWN_MALLOC)
::free(data_);
else
delete[] data_;
}
// In with the new.
if (data) {
data_ = data;
size_ = size;
if (alloc == DEEP_COPY) {
data_ = static_cast<char*>(::malloc(size_));
::memcpy(data_, static_cast<const char*>(data), size_);
alloc_ = OWN_MALLOC;
} else
alloc_ = alloc;
} else {
data_ = 0;
size_ = 0;
alloc_ = OWN_NEW;
}
fireChangedEvent();
}
void NPDF::writePacket(NFile&) const {
// I have absolutely no intention of supporting the old pre-2002 binary
// format, especially since it is about to be removed from Regina entirely.
}
NPDF* NPDF::readPacket(NFile&, NPacket*) {
// Likewise. Since we don't support PDF packets in the old binary files,
// just return an oops.
return 0;
}
void NPDF::writeXMLPacketData(std::ostream& out) const {
if (! data_) {
// We have an empty PDF packet.
out << " <pdf encoding=\"null\"></pdf>\n";
return;
}
char* base64;
size_t len64 = base64Encode(data_, size_, &base64);
if (! base64) {
out << " <pdf encoding=\"null\"></pdf>\n";
return;
}
out << " <pdf encoding=\"base64\">\n";
const char* pos = base64;
while (len64 > BASE64_LINE_LEN) {
out.write(pos, BASE64_LINE_LEN);
out << std::endl;
pos += BASE64_LINE_LEN;
len64 -= BASE64_LINE_LEN;
}
if (len64 > 0) {
out.write(pos, len64);
out << std::endl;
}
out << " </pdf>\n";
delete[] base64;
}
} // namespace regina
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