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/*
* Copyright (c) 2005 Bart Coppens <kde@bartcoppens.be>
*
* 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 "kis_histogram_producer.h"
#include "kis_basic_histogram_producers.h"
KisHistogramProducerFactoryRegistry* KisHistogramProducerFactoryRegistry::m_singleton = 0;
KisHistogramProducerFactoryRegistry::KisHistogramProducerFactoryRegistry() {
Q_ASSERT(KisHistogramProducerFactoryRegistry::m_singleton == 0);
}
KisHistogramProducerFactoryRegistry::~KisHistogramProducerFactoryRegistry() {
}
KisHistogramProducerFactoryRegistry* KisHistogramProducerFactoryRegistry::instance() {
if(KisHistogramProducerFactoryRegistry::m_singleton == 0) {
KisHistogramProducerFactoryRegistry::m_singleton
= new KisHistogramProducerFactoryRegistry();
m_singleton->add( new KisGenericLabHistogramProducerFactory() );
}
return KisHistogramProducerFactoryRegistry::m_singleton;
}
KisIDList KisHistogramProducerFactoryRegistry::listKeysCompatibleWith(
KisColorSpace* colorSpace) const
{
KisIDList list;
TQValueList<float> preferredList;
storageMap::const_iterator it = m_storage.begin();
storageMap::const_iterator endit = m_storage.end();
// O(n^2), can't this be done better? (But preferrably not by looking up the preferredness
// during the sorting...
while( it != endit ) {
if (it->second->isCompatibleWith(colorSpace)) {
float preferred = it->second->preferrednessLevelWith(colorSpace);
TQValueList<float>::iterator pit = preferredList.begin();
TQValueList<float>::iterator pend = preferredList.end();
KisIDList::iterator lit = list.begin();
while (pit != pend && preferred <= *pit) {
++pit;
++lit;
}
list.insert(lit, it->first);
preferredList.insert(pit, preferred);
}
++it;
}
return list;
}
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