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348 lines
11 KiB
348 lines
11 KiB
/*
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* This file is part of Chalk
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*
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* Copyright (c) 2004 Cyrille Berger <cberger@cberger.net>
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* Copyright (c) 2005 Casper Boemann <cbr@boemann.dk>
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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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#include <math.h>
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#include <tdelocale.h>
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#include <tqlayout.h>
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#include <tqpixmap.h>
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#include <tqpainter.h>
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#include <tqlabel.h>
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#include <tqdom.h>
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#include <tqstring.h>
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#include <tqstringlist.h>
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#include <tqpushbutton.h>
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#include "kis_filter_config_widget.h"
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#include "kis_brightness_contrast_filter.h"
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#include "wdg_brightness_contrast.h"
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#include "kis_colorspace.h"
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#include "kis_paint_device.h"
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#include "kis_iterators_pixel.h"
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#include "kis_iterator.h"
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#include "kcurve.h"
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#include "kis_histogram.h"
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#include "kis_basic_histogram_producers.h"
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#include "kis_painter.h"
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KisBrightnessContrastFilterConfiguration::KisBrightnessContrastFilterConfiguration()
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: KisFilterConfiguration( "brightnesscontrast", 1 )
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{
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for (TQ_UINT32 i = 0; i < 256; ++i) {
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transfer[i] = i * 257;
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}
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curve.setAutoDelete(true);
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m_adjustment = 0;
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}
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KisBrightnessContrastFilterConfiguration::~KisBrightnessContrastFilterConfiguration()
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{
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delete m_adjustment;
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}
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void KisBrightnessContrastFilterConfiguration::fromXML( const TQString& s )
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{
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TQDomDocument doc;
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doc.setContent( s );
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TQDomElement e = doc.documentElement();
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TQDomNode n = e.firstChild();
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while (!n.isNull()) {
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e = n.toElement();
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if (!e.isNull()) {
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if (e.tagName() == "transfer") {
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TQStringList data = TQStringList::split( ",", e.text() );
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TQStringList::Iterator start = data.begin();
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TQStringList::Iterator end = data.end();
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int i = 0;
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for ( TQStringList::Iterator it = start; it != end && i < 256; ++it ) {
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TQString s = *it;
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transfer[i] = s.toUShort();
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i++;
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}
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}
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else if (e.tagName() == "curve") {
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TQStringList data = TQStringList::split( ";", e.text() );
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TQStringList::Iterator pairStart = data.begin();
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TQStringList::Iterator pairEnd = data.end();
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curve.clear(); // XXX TQPtrList, sure I won't leak stuff here?
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for (TQStringList::Iterator it = pairStart; it != pairEnd; ++it) {
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TQString pair = * it;
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if (pair.find(",") > -1) {
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TQPair<double,double> *p = new TQPair<double,double>;
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p->first = pair.section(",", 0, 0).toDouble();
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p->second = pair.section(",", 1, 1).toDouble();
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curve.append(p);
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}
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}
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}
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}
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n = n.nextSibling();
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}
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// If the adjustment was cached, it now has changed - invalidate it
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delete m_adjustment;
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m_adjustment = 0;
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}
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TQString KisBrightnessContrastFilterConfiguration::toString()
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{
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TQDomDocument doc = TQDomDocument("filterconfig");
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TQDomElement root = doc.createElement( "filterconfig" );
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root.setAttribute( "name", name() );
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root.setAttribute( "version", version() );
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doc.appendChild( root );
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TQDomElement e = doc.createElement( "transfer" );
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TQString sTransfer;
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for ( uint i = 0; i < 255 ; ++i ) {
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sTransfer += TQString::number( transfer[i] );
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sTransfer += ",";
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}
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TQDomText text = doc.createCDATASection(sTransfer);
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e.appendChild(text);
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root.appendChild(e);
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e = doc.createElement("curve");
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TQString sCurve;
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TQPair<double,double> * pair;
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for ( pair = curve.first(); pair; pair = curve.next() ) {
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sCurve += TQString::number(pair->first);
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sCurve += ",";
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sCurve += TQString::number(pair->second);
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sCurve += ";";
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}
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text = doc.createCDATASection(sCurve);
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e.appendChild(text);
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root.appendChild(e);
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return doc.toString();
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}
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KisBrightnessContrastFilter::KisBrightnessContrastFilter()
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: KisFilter( id(), "adjust", i18n("&Brightness/Contrast..."))
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{
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}
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KisFilterConfigWidget * KisBrightnessContrastFilter::createConfigurationWidget(TQWidget *parent, KisPaintDeviceSP dev)
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{
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return new KisBrightnessContrastConfigWidget(parent, dev);
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}
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KisFilterConfiguration* KisBrightnessContrastFilter::configuration(TQWidget *nwidget)
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{
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KisBrightnessContrastConfigWidget* widget = (KisBrightnessContrastConfigWidget*)nwidget;
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if ( widget == 0 )
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{
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return new KisBrightnessContrastFilterConfiguration();
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} else {
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return widget->config();
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}
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}
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std::list<KisFilterConfiguration*> KisBrightnessContrastFilter::listOfExamplesConfiguration(KisPaintDeviceSP /*dev*/)
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{
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//XXX should really come up with a list of configurations
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std::list<KisFilterConfiguration*> list;
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list.insert(list.begin(), new KisBrightnessContrastFilterConfiguration( ));
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return list;
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}
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bool KisBrightnessContrastFilter::workWith(KisColorSpace* cs)
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{
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return (cs->getProfile() != 0);
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}
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void KisBrightnessContrastFilter::process(KisPaintDeviceSP src, KisPaintDeviceSP dst, KisFilterConfiguration* config, const TQRect& rect)
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{
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if (!config) {
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kdWarning() << "No configuration object for brightness/contrast filter\n";
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return;
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}
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KisBrightnessContrastFilterConfiguration* configBC = (KisBrightnessContrastFilterConfiguration*) config;
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Q_ASSERT(config);
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if (src!=dst) {
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KisPainter gc(dst);
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gc.bitBlt(rect.x(), rect.y(), COMPOSITE_COPY, src, rect.x(), rect.y(), rect.width(), rect.height());
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gc.end();
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}
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if (configBC->m_adjustment == 0) {
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configBC->m_adjustment = src->colorSpace()->createBrightnessContrastAdjustment(configBC->transfer);
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}
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KisRectIteratorPixel iter = dst->createRectIterator(rect.x(), rect.y(), rect.width(), rect.height(), true );
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setProgressTotalSteps(rect.width() * rect.height());
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TQ_INT32 pixelsProcessed = 0;
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while( ! iter.isDone() && !cancelRequested())
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{
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TQ_UINT32 npix=0, maxpix = iter.nConseqPixels();
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TQ_UINT8 selectedness = iter.selectedness();
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// The idea here is to handle stretches of completely selected and completely unselected pixels.
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// Partially selected pixels are handled one pixel at a time.
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switch(selectedness)
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{
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case MIN_SELECTED:
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while(iter.selectedness()==MIN_SELECTED && maxpix)
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{
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--maxpix;
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++iter;
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++npix;
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}
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pixelsProcessed += npix;
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break;
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case MAX_SELECTED:
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{
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TQ_UINT8 *firstPixel = iter.rawData();
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while(iter.selectedness()==MAX_SELECTED && maxpix)
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{
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--maxpix;
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if (maxpix != 0)
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++iter;
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++npix;
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}
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// adjust
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src->colorSpace()->applyAdjustment(firstPixel, firstPixel, configBC->m_adjustment, npix);
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pixelsProcessed += npix;
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++iter;
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break;
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}
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default:
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// adjust, but since it's partially selected we also only partially adjust
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src->colorSpace()->applyAdjustment(iter.oldRawData(), iter.rawData(), configBC->m_adjustment, 1);
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const TQ_UINT8 *pixels[2] = {iter.oldRawData(), iter.rawData()};
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TQ_UINT8 weights[2] = {MAX_SELECTED - selectedness, selectedness};
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src->colorSpace()->mixColors(pixels, weights, 2, iter.rawData());
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++iter;
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pixelsProcessed++;
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break;
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}
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setProgress(pixelsProcessed);
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}
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setProgressDone();
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}
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KisBrightnessContrastConfigWidget::KisBrightnessContrastConfigWidget(TQWidget * parent, KisPaintDeviceSP dev, const char * name, WFlags f)
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: KisFilterConfigWidget(parent, name, f)
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{
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int i;
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int height;
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m_page = new WdgBrightnessContrast(this);
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TQHBoxLayout * l = new TQHBoxLayout(this);
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TQ_CHECK_PTR(l);
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//Hide these buttons and labels as they are not implemented in 1.5
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m_page->pb_more_contrast->hide();
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m_page->pb_less_contrast->hide();
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m_page->pb_more_brightness->hide();
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m_page->pb_less_brightness->hide();
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m_page->textLabelBrightness->hide();
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m_page->textLabelContrast->hide();
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l->addWidget(m_page, 0, TQt::AlignTop);
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height = 256;
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connect( m_page->kCurve, TQT_SIGNAL(modified()), TQT_SIGNAL(sigPleaseUpdatePreview()));
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// Create the horizontal gradient label
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TQPixmap hgradientpix(256, 1);
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TQPainter hgp(&hgradientpix);
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hgp.setPen(TQPen(TQColor(0,0,0),1, TQt::SolidLine));
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for( i=0; i<256; ++i )
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{
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hgp.setPen(TQColor(i,i,i));
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hgp.drawPoint(i, 0);
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}
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m_page->hgradient->setPixmap(hgradientpix);
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// Create the vertical gradient label
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TQPixmap vgradientpix(1, 256);
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TQPainter vgp(&vgradientpix);
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vgp.setPen(TQPen(TQColor(0,0,0),1, TQt::SolidLine));
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for( i=0; i<256; ++i )
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{
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vgp.setPen(TQColor(i,i,i));
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vgp.drawPoint(0, 255-i);
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}
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m_page->vgradient->setPixmap(vgradientpix);
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KisHistogramProducerSP producer = new KisGenericLabHistogramProducer();
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KisHistogram histogram(dev, producer, LINEAR);
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TQPixmap pix(256, height);
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pix.fill();
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TQPainter p(&pix);
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p.setPen(TQPen(TQt::gray,1, TQt::SolidLine));
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double highest = (double)histogram.calculations().getHighest();
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TQ_INT32 bins = histogram.producer()->numberOfBins();
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if (histogram.getHistogramType() == LINEAR) {
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double factor = (double)height / highest;
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for( i=0; i<bins; ++i ) {
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p.drawLine(i, height, i, height - int(histogram.getValue(i) * factor));
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}
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} else {
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double factor = (double)height / (double)log(highest);
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for( i = 0; i < bins; ++i ) {
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p.drawLine(i, height, i, height - int(log((double)histogram.getValue(i)) * factor));
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}
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}
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m_page->kCurve->setPixmap(pix);
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}
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KisBrightnessContrastFilterConfiguration * KisBrightnessContrastConfigWidget::config()
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{
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KisBrightnessContrastFilterConfiguration * cfg = new KisBrightnessContrastFilterConfiguration();
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for(int i=0; i <256; i++)
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{
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TQ_INT32 val;
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val = int(0xFFFF * m_page->kCurve->getCurveValue( i / 255.0));
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if(val >0xFFFF)
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val=0xFFFF;
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if(val <0)
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val = 0;
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cfg->transfer[i] = val;
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}
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cfg->curve = m_page->kCurve->getCurve();
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return cfg;
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}
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void KisBrightnessContrastConfigWidget::setConfiguration( KisFilterConfiguration * config )
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{
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KisBrightnessContrastFilterConfiguration * cfg = dynamic_cast<KisBrightnessContrastFilterConfiguration *>(config);
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m_page->kCurve->setCurve(cfg->curve);
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}
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