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/*
* This file is part of the KDE project
*
* 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 <tqtooltip.h>
#include <klocale.h>
#include <kiconloader.h>
#include <kinstance.h>
#include <kmessagebox.h>
#include <kstandarddirs.h>
#include <ktempfile.h>
#include <kdebug.h>
#include <kgenericfactory.h>
#include <kopalettemanager.h>
#include "kis_meta_registry.h"
#include <kis_doc.h>
#include <kis_global.h>
#include <kis_types.h>
#include <kis_view.h>
#include <kis_basic_histogram_producers.h>
#include <kis_colorspace_factory_registry.h>
#include "histogramdocker.h"
#include "kis_imagerasteredcache.h"
#include "kis_accumulating_producer.h"
typedef KGenericFactory<ChalkHistogramDocker> ChalkHistogramDockerFactory;
K_EXPORT_COMPONENT_FACTORY( chalkhistogramdocker, ChalkHistogramDockerFactory( "chalk" ) )
ChalkHistogramDocker::ChalkHistogramDocker(TQObject *parent, const char *name, const TQStringList&)
: KParts::Plugin(parent, name)
{
if ( parent->inherits("KisView") ) {
m_view = dynamic_cast<KisView*>(parent);
setInstance(ChalkHistogramDockerFactory::instance());
setXMLFile(locate("data","chalkplugins/chalkhistogramdocker.rc"), true);
KisImageSP img = m_view->canvasSubject()->currentImg();
if (!img) {
m_cache = 0;
return;
}
m_hview = 0; // producerChanged wants to setCurrentChannels, prevent that here
m_cache = 0; // we try to delete it in producerChanged
colorSpaceChanged(img->colorSpace()); // calls producerChanged(0)
m_hview = new KisHistogramView(m_view);
TQToolTip::add(m_hview, i18n("Right-click to select histogram type"));
m_hview->setHistogram(m_histogram);
m_hview->setColor(true);
m_hview->setCurrentChannels(m_producer, m_producer->channels());
m_hview->setFixedSize(256, 100); // XXX if not it keeps expanding
m_hview->setCaption(i18n("Histogram"));
connect(m_hview, TQT_SIGNAL(rightClicked(const TQPoint&)),
this, TQT_SLOT(popupMenu(const TQPoint&)));
connect(m_cache, TQT_SIGNAL(cacheUpdated()),
new HistogramDockerUpdater(this, m_histogram, m_hview, m_producer), TQT_SLOT(updated()));
connect(&m_popup, TQT_SIGNAL(activated(int)),
this, TQT_SLOT(producerChanged(int)));
connect(img, TQT_SIGNAL(sigColorSpaceChanged(KisColorSpace*)),
this, TQT_SLOT(colorSpaceChanged(KisColorSpace*))); // No need to force updates here
// Add it to the control palette
m_view->canvasSubject()->paletteManager()->addWidget(
m_hview, "histodocker", chalk::CONTROL_PALETTE);
} else {
m_cache = 0;
}
}
ChalkHistogramDocker::~ChalkHistogramDocker()
{
uint count = m_producers . count();
for (uint i = 0; i < count; i++) {
delete m_producers . at(i);
}
if (m_cache)
m_cache->deleteLater();
}
void ChalkHistogramDocker::producerChanged(int pos)
{
if (m_cache)
m_cache->deleteLater();
m_cache = 0;
if (m_currentProducerPos < m_popup.count())
m_popup.setItemChecked(m_currentProducerPos, false);
m_currentProducerPos = pos;
m_popup.setItemChecked(m_currentProducerPos, true);
uint count = m_producers . count();
for (uint i = 0; i < count; i++) {
delete m_producers . at(i);
}
m_producers.clear();
KisIDList keys = KisHistogramProducerFactoryRegistry::instance() ->
listKeysCompatibleWith(m_cs);
m_factory = KisHistogramProducerFactoryRegistry::instance()->get(*(keys.at(pos)));
KisCachedHistogramObserver observer(&m_producers, m_factory, 0, 0, 0, 0, false);
// We can reference observer because it will be only used as a factory to create new
// instances
m_cache = new KisImageRasteredCache(m_view, &observer);
m_producer = new KisAccumulatingHistogramProducer(&m_producers);
// use dummy layer as a source; we are not going to actually use or need it
// All of these are SP, no need to delete them afterwards
m_histogram = new KisHistogram( new KisPaintDevice(KisMetaRegistry::instance()->csRegistry()->getAlpha8(), "dummy histogram"), m_producer, LOGARITHMIC);
if (m_hview) {
m_hview->setHistogram(m_histogram);
m_hview->setColor(true);
m_hview->setCurrentChannels(m_producer, m_producer->channels());
connect(m_cache, TQT_SIGNAL(cacheUpdated()),
new HistogramDockerUpdater(this, m_histogram, m_hview, m_producer), TQT_SLOT(updated()));
}
}
void ChalkHistogramDocker::popupMenu(const TQPoint& pos)
{
m_popup.popup(pos, m_currentProducerPos);
}
void ChalkHistogramDocker::colorSpaceChanged(KisColorSpace* cs)
{
m_cs = cs;
KisIDList keys = KisHistogramProducerFactoryRegistry::instance() ->
listKeysCompatibleWith(m_cs);
m_popup.clear();
m_currentProducerPos = 0;
for (uint i = 0; i < keys.count(); i++) {
KisID id(*(keys.at(i)));
m_popup . insertItem(id.name(), static_cast<int>(i));
}
producerChanged(0);
}
HistogramDockerUpdater::HistogramDockerUpdater(TQObject* /*parent*/, KisHistogramSP h, KisHistogramView* v,
KisAccumulatingHistogramProducer* p)
: m_histogram(h), m_view(v), m_producer(p)
{
connect(p, TQT_SIGNAL(completed()), this, TQT_SLOT(completed()));
}
void HistogramDockerUpdater::updated() {
// We don't [!] do m_histogram->updateHistogram();, because that will try to compute
// the histogram synchronously, while we want it asynchronously.
m_producer->addRegionsToBinAsync();
}
void HistogramDockerUpdater::completed() {
m_histogram->computeHistogram();
m_view->updateHistogram();
}
#include "histogramdocker.moc"
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