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/**************************************************************************
* *
* Regina - A Normal Surface Theory Calculator *
* Computational Engine *
* *
* Copyright (c) 1999-2008, 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 "surfaces/sfcombination.h"
#include "file/nfile.h"
#define TYPE_AND 1
#define TYPE_OR 2
namespace regina {
bool NSurfaceFilterCombination::accept(const NNormalSurface& surface) const {
if (usesAnd) {
// Combine all child filters using AND.
for (NPacket* child = getFirstTreeChild(); child;
child = child->getNextTreeSibling())
if (child->getPacketType() == NSurfaceFilter::packetType)
if (! (dynamic_cast<NSurfaceFilter*>(child)->accept(surface)))
return false;
return true;
} else {
// Combine all child filters using OR.
for (NPacket* child = getFirstTreeChild(); child;
child = child->getNextTreeSibling())
if (child->getPacketType() == NSurfaceFilter::packetType)
if (dynamic_cast<NSurfaceFilter*>(child)->accept(surface))
return true;
return false;
}
}
void NSurfaceFilterCombination::writeXMLFilterData(std::ostream& out) const {
out << " <op type=\"" << (usesAnd ? "and" : "or") << "\"/>\n";
}
void NSurfaceFilterCombination::writeFilter(NFile& out) const {
if (usesAnd)
out.writeInt(TYPE_AND);
else
out.writeInt(TYPE_OR);
}
NSurfaceFilter* NSurfaceFilterCombination::readFilter(NFile& in, NPacket*) {
NSurfaceFilterCombination* ans = new NSurfaceFilterCombination();
ans->usesAnd = (in.readInt() == TYPE_AND);
return ans;
}
} // namespace regina
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