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78 lines
3.0 KiB
78 lines
3.0 KiB
/*
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* This file is part of Chalk
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*
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* Copyright (c) 2005 Bart Coppens <kde@bartcoppens.be>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef _KIS_ACCUMULATING_PRODUCER_H_
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#define _KIS_ACCUMULATING_PRODUCER_H_
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#include <tqobject.h>
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#include <kis_basic_histogram_producers.h>
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#include "kis_cachedhistogram.h"
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/**
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* Kept very minimalistic because all options would require much reiterating which we don't want.
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* This class is multithreading! Don't expect it to contain the right data after an
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* addRegionsToBinAsync call, but await it's completed() signal. Also beware! This function
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* _does_ clear() before addRegionsToBinAsync! (hence not conforming to the regular semantics
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* of HistogramProducers if you'd take addRegionsToBinAsync = addRegionToBin, but since that is
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* already violated with the asynchronousity of it that is not really an issue anymore, I think)
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**/
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class KisAccumulatingHistogramProducer : public TQObject, public KisBasicHistogramProducer {
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TQ_OBJECT
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public:
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KisAccumulatingHistogramProducer(KisCachedHistogramObserver::Producers* source);
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~KisAccumulatingHistogramProducer();
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/// Does _nothing_, use addRegionsToBinAsync
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virtual void addRegionToBin(TQ_UINT8 *, TQ_UINT8*, TQ_UINT32, KisColorSpace *) {}
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virtual void addRegionsToBinAsync();
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virtual TQString positionToString(double pos) const
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{ return m_source->at(0)->positionToString(pos); }
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virtual void setView(double, double) {} // No view support
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virtual double maximalZoom() const { return 1.0; }
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virtual TQ_INT32 numberOfBins() { return m_source->at(0)->numberOfBins(); }
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virtual TQValueVector<KisChannelInfo *> channels() { return m_source->at(0)->channels(); }
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/// Call this when the 'source' list has changed colorspace
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virtual void changedSourceProducer() {
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m_count = m_source->at(0)->channels().count();
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m_external.clear();
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makeExternalToInternal();
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}
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signals:
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void completed();
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protected:
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virtual void customEvent(TQCustomEvent* e);
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/// source already converts external to internal
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virtual int externalToInternal(int ext) { return ext; }
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KisCachedHistogramObserver::Producers* m_source;
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class ThreadedProducer;
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friend class ThreadedProducer;
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ThreadedProducer* m_thread;
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};
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#endif // _KIS_ACCUMULATING_PRODUCER_H_
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