File indexing completed on 2025-01-05 03:51:42

 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2004-06-06
  * Description : Red eyes correction tool for image editor
  *
  * SPDX-FileCopyrightText: 2004-2005 by Renchi Raju <renchi dot raju at gmail dot com>
  * SPDX-FileCopyrightText: 2004-2024 by Gilles Caulier <caulier dot gilles at gmail dot com>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  *
  * ============================================================ */
 
 #include "redeyetool.h"
 
 // Qt includes
 
 #include <QColor>
 #include <QFrame>
 #include <QGridLayout>
 #include <QGroupBox>
 #include <QHBoxLayout>
 #include <QLabel>
 #include <QPixmap>
 #include <QPushButton>
 #include <QToolButton>
 #include <QApplication>
 #include <QColorDialog>
 #include <QIcon>
 
 // KDE includes
 
 #include <kconfiggroup.h>
 #include <ksharedconfig.h>
 #include <klocalizedstring.h>
 
 // Local includes
 
 #include "editortoolsettings.h"
 #include "histogramwidget.h"
 #include "histogrambox.h"
 #include "imageiface.h"
 #include "redeyecorrectionfilter.h"
 #include "redeyecorrectionsettings.h"
 #include "imageregionwidget.h"
 
 namespace DigikamEditorRedEyeToolPlugin
 {
 
 class Q_DECL_HIDDEN RedEyeTool::Private
 {
 
 public:
 
     explicit Private()
       : settingsView (nullptr),
         previewWidget(nullptr),
         gboxSettings (nullptr)
     {
     }
 
     static const QString      configGroupName;
     static const QString      configHistogramChannelEntry;
     static const QString      configHistogramScaleEntry;
 
     RedEyeCorrectionSettings* settingsView;
     ImageRegionWidget*        previewWidget;
     EditorToolSettings*       gboxSettings;
 };
 
 const QString RedEyeTool::Private::configGroupName(QLatin1String("redeye Tool"));
 const QString RedEyeTool::Private::configHistogramChannelEntry(QLatin1String("Histogram Channel"));
 const QString RedEyeTool::Private::configHistogramScaleEntry(QLatin1String("Histogram Scale"));
 
 // --------------------------------------------------------
 
 RedEyeTool::RedEyeTool(QObject* const parent)
     : EditorToolThreaded(parent),
       d                 (new Private)
 {
     setObjectName(QLatin1String("redeye"));
     setToolHelp(QLatin1String("redeyecorrectiontool.anchor"));
 
     d->previewWidget = new ImageRegionWidget;
     d->previewWidget->setToolTip(i18n("Here you can see the image selection preview with "
                                       "red eye reduction applied."));
 
     // -------------------------------------------------------------
 
     d->gboxSettings = new EditorToolSettings(nullptr);
     d->gboxSettings->setTools(EditorToolSettings::Histogram);
     d->gboxSettings->setHistogramType(LRGBC);
     d->gboxSettings->setButtons(EditorToolSettings::Default|
                                 EditorToolSettings::Ok|
                                 EditorToolSettings::Cancel);
 
     d->settingsView = new RedEyeCorrectionSettings(d->gboxSettings->plainPage());
 
     setToolView(d->previewWidget);
     setPreviewModeMask(PreviewToolBar::AllPreviewModes);
     setToolSettings(d->gboxSettings);
 
     // -------------------------------------------------------------
 
     connect(d->settingsView, SIGNAL(signalSettingsChanged()),
             this, SLOT(slotTimer()));
 }
 
 RedEyeTool::~RedEyeTool()
 {
     delete d;
 }
 
 void RedEyeTool::readSettings()
 {
     KSharedConfig::Ptr config = KSharedConfig::openConfig();
     KConfigGroup group        = config->group(d->configGroupName);
 
     d->gboxSettings->histogramBox()->setChannel((ChannelType)group.readEntry(d->configHistogramChannelEntry, (int)LuminosityChannel));
     d->gboxSettings->histogramBox()->setScale((HistogramScale)group.readEntry(d->configHistogramScaleEntry,  (int)LogScaleHistogram));
     d->settingsView->readSettings(group);
 }
 
 void RedEyeTool::writeSettings()
 {
     KSharedConfig::Ptr config = KSharedConfig::openConfig();
     KConfigGroup group        = config->group(d->configGroupName);
 
     group.writeEntry(d->configHistogramChannelEntry, (int)d->gboxSettings->histogramBox()->channel());
     group.writeEntry(d->configHistogramScaleEntry,   (int)d->gboxSettings->histogramBox()->scale());
     d->settingsView->writeSettings(group);
 
     config->sync();
 }
 
 void RedEyeTool::slotResetSettings()
 {
     d->settingsView->resetToDefault();
     slotPreview();
 }
 
 void RedEyeTool::preparePreview()
 {
     RedEyeCorrectionContainer settings = d->settingsView->settings();
 
     d->gboxSettings->histogramBox()->histogram()->stopHistogramComputation();
 
     DImg original = d->previewWidget->getOriginalImage();
     setFilter(new RedEyeCorrectionFilter(&original, this, settings));
 }
 
 void RedEyeTool::setPreviewImage()
 {
     DImg preview = filter()->getTargetImage().copy(d->previewWidget->getOriginalImageRegionToRender());
     d->previewWidget->setPreviewImage(preview);
 
     // Update histogram.
 
     d->gboxSettings->histogramBox()->histogram()->updateData(preview.copy(), DImg(), false);
 }
 
 void RedEyeTool::prepareFinal()
 {
     RedEyeCorrectionContainer settings = d->settingsView->settings();
 
     ImageIface iface;
 
     setFilter(new RedEyeCorrectionFilter(iface.original(), this, settings));
 }
 
 void RedEyeTool::setFinalImage()
 {
     ImageIface iface;
     iface.setOriginal(i18n("Red Eyes Correction"), filter()->filterAction(), filter()->getTargetImage());
 }
 
 } // namespace DigikamEditorRedEyeToolPlugin
 
 #include "moc_redeyetool.cpp"