File indexing completed on 2024-06-16 04:16:38

 /*
  * This file is part of Krita
  *
  * SPDX-FileCopyrightText: 2005 C. Boemann <cbo@boemann.dk>
  *
  *  SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #include "kis_perchannel_filter.h"
 
 #include <Qt>
 #include <QLayout>
 #include <QPixmap>
 #include <QPainter>
 #include <QLabel>
 #include <QComboBox>
 #include <QDomDocument>
 #include <QHBoxLayout>
 
 #include "KoChannelInfo.h"
 #include "KoBasicHistogramProducers.h"
 #include "KoColorModelStandardIds.h"
 #include "KoColorSpace.h"
 #include "KoColorTransformation.h"
 #include "KoCompositeColorTransformation.h"
 #include "KoCompositeOp.h"
 #include "KoID.h"
 
 #include "kis_signals_blocker.h"
 
 #include "kis_bookmarked_configuration_manager.h"
 #include "kis_config_widget.h"
 #include <filter/kis_filter_configuration.h>
 #include <kis_selection.h>
 #include <kis_paint_device.h>
 #include <kis_processing_information.h>
 
 #include "kis_histogram.h"
 #include "kis_painter.h"
 #include "widgets/kis_curve_widget.h"
 #include <KisGlobalResourcesInterface.h>
 
 #include "kis_multichannel_utils.h"
 
 KisPerChannelConfigWidget::KisPerChannelConfigWidget(QWidget * parent, KisPaintDeviceSP dev, Qt::WindowFlags f)
         : KisMultiChannelConfigWidget(parent, dev, f)
 {
     init();
 
     // These are not used by this filter,
     // but the dialog is shared with KisCrossChannelFilter
     m_page->lblDriverChannel->hide();
     m_page->cmbDriverChannel->hide();
 }
 
 KisPerChannelConfigWidget::~KisPerChannelConfigWidget()
 {}
 
 #define BITS_PER_BYTE 8
 #define pwr2(p) (1<<p)
 void KisPerChannelConfigWidget::updateChannelControls()
 {
     // Getting range accepted by channel
     VirtualChannelInfo &currentVChannel = m_virtualChannels[m_activeVChannel];
 
     KoChannelInfo::enumChannelValueType valueType = currentVChannel.valueType();
 
     int order = BITS_PER_BYTE * currentVChannel.channelSize();
     int maxValue = pwr2(order);
     int min;
     int max;
 
     m_curveControlsManager.reset();
 
     switch (valueType) {
     case KoChannelInfo::UINT8:
     case KoChannelInfo::UINT16:
     case KoChannelInfo::UINT32:
         min = 0;
         max = maxValue - 1;
         break;
     case KoChannelInfo::INT8:
     case KoChannelInfo::INT16:
         min = -maxValue / 2;
         max = maxValue / 2 - 1;
         break;
     case KoChannelInfo::FLOAT16:
     case KoChannelInfo::FLOAT32:
     case KoChannelInfo::FLOAT64:
     default:
         //Hack Alert: should be changed to float
         if (m_dev->colorSpace()->colorModelId() == LABAColorModelID || m_dev->colorSpace()->colorModelId() == CMYKAColorModelID) {
             if (m_dev->colorSpace()->channelCount() > m_activeVChannel) {
                 const QList<KoChannelInfo*> channels = m_dev->colorSpace()->channels();
                 min = channels[m_activeVChannel]->getUIMin();
                 max = channels[m_activeVChannel]->getUIMax();
             } else {
                 // it must be "Hue", "Saturation" or other "channel" that isn't actually accessible in the color space
                 min = 0;
                 // specific number apparently doesn't matter,
                 // if there is 255, it will work just fine, too
                 max = 100;
             }
         } else {
             min = 0;
             max = 100;
         }
         break;
     }
 
     m_curveControlsManager.reset(new KisCurveWidgetControlsManagerInt(m_page->curveWidget,
                                                                       m_page->intIn, m_page->intOut, min, max, min, max));
 }
 
 
 KisPropertiesConfigurationSP KisPerChannelConfigWidget::configuration() const
 {
     int numChannels = m_virtualChannels.size();
     KisPropertiesConfigurationSP cfg = new KisPerChannelFilterConfiguration(numChannels, KisGlobalResourcesInterface::instance());
 
     KIS_ASSERT_RECOVER(m_activeVChannel < m_curves.size()) { return cfg; }
 
     m_curves[m_activeVChannel] = m_page->curveWidget->curve();
     static_cast<KisPerChannelFilterConfiguration*>(cfg.data())->setCurves(m_curves);
 
     return cfg;
 }
 
 KisPropertiesConfigurationSP KisPerChannelConfigWidget::getDefaultConfiguration()
 {
     return new KisPerChannelFilterConfiguration(m_virtualChannels.size(), KisGlobalResourcesInterface::instance());
 }
 
 KisPerChannelFilterConfiguration::KisPerChannelFilterConfiguration(int channelCount, KisResourcesInterfaceSP resourcesInterface)
         : KisMultiChannelFilterConfiguration(channelCount, "perchannel", 1, resourcesInterface)
 {
     init();
 }
 
 KisPerChannelFilterConfiguration::KisPerChannelFilterConfiguration(const KisPerChannelFilterConfiguration &rhs)
     : KisMultiChannelFilterConfiguration(rhs)
 {
 }
 
 KisPerChannelFilterConfiguration::~KisPerChannelFilterConfiguration()
 {
 }
 
 KisFilterConfigurationSP KisPerChannelFilterConfiguration::clone() const
 {
     return new KisPerChannelFilterConfiguration(*this);
 }
 
 KisCubicCurve KisPerChannelFilterConfiguration::getDefaultCurve()
 {
     return KisCubicCurve();
 }
 
 // KisPerChannelFilter
 
 KisPerChannelFilter::KisPerChannelFilter() : KisMultiChannelFilter(id(), i18n("&Color Adjustment curves..."))
 {
     setShortcut(QKeySequence(Qt::CTRL + Qt::Key_M));
 }
 
 KisConfigWidget * KisPerChannelFilter::createConfigurationWidget(QWidget *parent, const KisPaintDeviceSP dev, bool) const
 {
     return new KisPerChannelConfigWidget(parent, dev);
 }
 
 KisFilterConfigurationSP  KisPerChannelFilter::factoryConfiguration(KisResourcesInterfaceSP resourcesInterface) const
 {
     return new KisPerChannelFilterConfiguration(0, resourcesInterface);
 }
 
 KoColorTransformation* KisPerChannelFilter::createTransformation(const KoColorSpace* cs, const KisFilterConfigurationSP config) const
 {
     const KisPerChannelFilterConfiguration* configBC =
         dynamic_cast<const KisPerChannelFilterConfiguration*>(config.data()); // Somehow, this shouldn't happen
     Q_ASSERT(configBC);
 
     QList<bool> isIdentityList;
     for (const KisCubicCurve &curve : configBC->curves()) {
         isIdentityList.append(curve.isIdentity());
     }
 
     return KisMultiChannelUtils::createPerChannelTransformationFromTransfers(cs, configBC->transfers(), isIdentityList);
 }