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#include "PolySetEvaluator.h"
#include "printutils.h"
#include "polyset.h"
/*!
The task of PolySetEvaluator is to create, keep track of and cache PolySet instances.
All instances of PolySet which are not strictly temporary should be requested through this
class.
*/
QCache<std::string, PolySetEvaluator::cache_entry> PolySetEvaluator::cache(100000);
PolySet *PolySetEvaluator::getPolySet(const AbstractNode &node)
{
const string &cacheid = this->tree.getString(node);
if (cache.contains(cacheid)) return cache[cacheid]->ps;
PolySet *ps = node.evaluate_polyset(this);
cache.insert(cacheid, new cache_entry(ps), ps?ps->polygons.size():0);
return ps;
}
PolySetEvaluator::cache_entry::cache_entry(PolySet *ps)
: ps(ps)
{
if (print_messages_stack.size() > 0) this->msg = print_messages_stack.last();
}
void PolySetEvaluator::printCache()
{
PRINTF("PolySets in cache: %d", cache.size());
PRINTF("Polygons in cache: %d", cache.totalCost());
}
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