File indexing completed on 2024-06-16 04:16:41

 /*
  * This file is part of Krita
  *
  * SPDX-FileCopyrightText: 2006 Frederic Coiffier <fcoiffie@gmail.com>
  * SPDX-FileCopyrightText: 2021 Deif Lou <ginoba@gmail.com>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #include <filter/kis_filter_category_ids.h>
 
 #include "../colorsfilters/kis_multichannel_utils.h"
 
 #include "KisLevelsFilter.h"
 #include "KisLevelsConfigWidget.h"
 
 KisLevelsFilter::KisLevelsFilter()
     : KisColorTransformationFilter(id(), FiltersCategoryAdjustId, i18n("&Levels..."))
 {
     setSupportsPainting(true);
     setColorSpaceIndependence(TO_LAB16);
     setShortcut(QKeySequence(Qt::CTRL + Qt::Key_L));
 }
 
 KisFilterConfigurationSP KisLevelsFilter::factoryConfiguration(KisResourcesInterfaceSP resourcesInterface) const
 {
     return new KisLevelsFilterConfiguration(0, resourcesInterface);
 }
 
 KisConfigWidget * KisLevelsFilter::createConfigurationWidget(QWidget* parent, const KisPaintDeviceSP dev, bool) const
 {
     return new KisLevelsConfigWidget(parent, dev, dev->compositionSourceColorSpace());
 }
 
 KoColorTransformation* KisLevelsFilter::createTransformation(const KoColorSpace* cs, const KisFilterConfigurationSP config) const
 {
     Q_ASSERT(cs);
     const KisLevelsFilterConfiguration *config_ = dynamic_cast<const KisLevelsFilterConfiguration*>(config.data());
     Q_ASSERT(config_);
 
     if (config_->useLightnessMode()) {
         if (!config_->lightnessLevelsCurve().isIdentity()) {
             return cs->createBrightnessContrastAdjustment(config_->lightnessTransfer().constData());
         }
     } else {
         QList<bool> isIdentityList;
         for (const KisLevelsCurve &levelsCurve : config_->levelsCurves()) {
             isIdentityList.append(levelsCurve.isIdentity());
         }
 
         return KisMultiChannelUtils::createPerChannelTransformationFromTransfers(cs, config_->transfers(), isIdentityList);
     }
     return nullptr;
 }