File indexing completed on 2025-01-05 03:51:40

 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2004-07-09
  * Description : a tool to blur an image
  *
  * SPDX-FileCopyrightText: 2004-2024 by Gilles Caulier <caulier dot gilles at gmail dot com>
  * SPDX-FileCopyrightText: 2009      by Andi Clemens <andi dot clemens at gmail dot com>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  *
  * ============================================================ */
 
 #include "blurtool.h"
 
 // Qt includes
 
 #include <QGridLayout>
 #include <QLabel>
 #include <QIcon>
 
 // KDE includes
 
 #include <kconfiggroup.h>
 #include <ksharedconfig.h>
 #include <klocalizedstring.h>
 
 // Local includes
 
 #include "dnuminput.h"
 #include "blurfilter.h"
 #include "editortoolsettings.h"
 #include "imageiface.h"
 #include "imageregionwidget.h"
 
 namespace DigikamEditorBlurToolPlugin
 {
 
 class Q_DECL_HIDDEN BlurTool::Private
 {
 public:
 
     explicit Private()
       : radiusInput  (nullptr),
         previewWidget(nullptr),
         gboxSettings (nullptr)
     {
     }
 
     static const QString configGroupName;
     static const QString configRadiusAdjustmentEntry;
 
     DIntNumInput*        radiusInput;
     ImageRegionWidget*   previewWidget;
     EditorToolSettings*  gboxSettings;
 };
 
 const QString BlurTool::Private::configGroupName(QLatin1String("gaussianblur Tool"));
 const QString BlurTool::Private::configRadiusAdjustmentEntry(QLatin1String("RadiusAdjustment"));
 
 // --------------------------------------------------------
 
 BlurTool::BlurTool(QObject* const parent)
     : EditorToolThreaded(parent),
       d                 (new Private)
 {
     setObjectName(QLatin1String("gaussianblur"));
     setToolHelp(QLatin1String("blursharpentool.anchor"));
 
     d->gboxSettings  = new EditorToolSettings(nullptr);
     d->previewWidget = new ImageRegionWidget;
 
     // --------------------------------------------------------
 
     QLabel* const label  = new QLabel(i18n("Smoothness:"));
     d->radiusInput = new DIntNumInput();
     d->radiusInput->setRange(0, 100, 1);
     d->radiusInput->setDefaultValue(0);
     d->radiusInput->setWhatsThis(i18n("A smoothness of 0 has no effect, "
                                       "1 and above determine the Gaussian blur matrix radius "
                                       "that determines how much to blur the image."));
 
     // --------------------------------------------------------
 
     const int spacing = d->gboxSettings->spacingHint();
 
     QGridLayout* const grid = new QGridLayout( );
     grid->addWidget(label,          0, 0, 1, 2);
     grid->addWidget(d->radiusInput, 1, 0, 1, 2);
     grid->setRowStretch(2, 10);
     grid->setContentsMargins(spacing, spacing, spacing, spacing);
     grid->setSpacing(spacing);
     d->gboxSettings->plainPage()->setLayout(grid);
 
     // --------------------------------------------------------
 
     setPreviewModeMask(PreviewToolBar::AllPreviewModes);
     setToolSettings(d->gboxSettings);
     setToolView(d->previewWidget);
 
     // --------------------------------------------------------
 
     connect(d->radiusInput, SIGNAL(valueChanged(int)),
             this, SLOT(slotTimer()));
 }
 
 BlurTool::~BlurTool()
 {
     delete d;
 }
 
 void BlurTool::readSettings()
 {
     KSharedConfig::Ptr config = KSharedConfig::openConfig();
     KConfigGroup group        = config->group(d->configGroupName);
     d->radiusInput->setValue(group.readEntry(d->configRadiusAdjustmentEntry, d->radiusInput->defaultValue()));
 }
 
 void BlurTool::writeSettings()
 {
     KSharedConfig::Ptr config = KSharedConfig::openConfig();
     KConfigGroup group        = config->group(d->configGroupName);
     group.writeEntry(d->configRadiusAdjustmentEntry, d->radiusInput->value());
     config->sync();
 }
 
 void BlurTool::slotResetSettings()
 {
     d->radiusInput->blockSignals(true);
     d->radiusInput->slotReset();
     d->radiusInput->blockSignals(false);
 }
 
 void BlurTool::preparePreview()
 {
     DImg img = d->previewWidget->getOriginalRegionImage();
     setFilter(new BlurFilter(&img, this, d->radiusInput->value()));
 }
 
 void BlurTool::setPreviewImage()
 {
     DImg preview = filter()->getTargetImage();
     d->previewWidget->setPreviewImage(preview);
 }
 
 void BlurTool::prepareFinal()
 {
     ImageIface iface;
     setFilter(new BlurFilter(iface.original(), this, d->radiusInput->value()));
 }
 
 void BlurTool::setFinalImage()
 {
     ImageIface iface;
     iface.setOriginal(i18n("Gaussian Blur"), filter()->filterAction(), filter()->getTargetImage());
 }
 
 } // namespace DigikamEditorBlurToolPlugin
 
 #include "moc_blurtool.cpp"