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/*
* This file is part of Krita
*
* 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.
*/
#ifndef _CACHED_HISTOGRAM_H_
#define _CACHED_HISTOGRAM_H_
#include <qvaluevector.h>
#include <kis_histogram_producer.h>
#include "kis_imagerasteredcache.h"
class KisCachedHistogramObserver : public KisImageRasteredCache::Observer {
public:
typedef QValueVector<KisHistogramProducer*> Producers;
KisCachedHistogramObserver(Producers* p, KisHistogramProducerFactory* f,
int x, int y, int w, int h, bool add = true)
: m_producers(p), m_factory(f), m_x(x), m_y(y), m_w(w), m_h(h)
{
m_producer = m_factory->generate();
if (add)
m_producers->append(m_producer);
}
virtual ~KisCachedHistogramObserver() {}
virtual Observer* createNew(int x, int y, int w, int h)
{ return new KisCachedHistogramObserver(m_producers, m_factory, x, y, w, h); }
virtual void regionUpdated(KisPaintDeviceSP dev);
private:
Producers* m_producers;
KisHistogramProducerFactory* m_factory;
KisHistogramProducerSP m_producer;
int m_x, m_y, m_w, m_h;
};
#endif // _CACHED_HISTOGRAM_H_
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