File indexing completed on 2025-01-19 03:51:00

 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2007-08-02
  * Description : JPEG-2000 image export settings widget.
  *
  * SPDX-FileCopyrightText: 2007-2024 by Gilles Caulier <caulier dot gilles at gmail dot com>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  *
  * ============================================================ */
 
 #include "dimgjpeg2000exportsettings.h"
 
 // Qt includes
 
 #include <QString>
 #include <QLabel>
 #include <QCheckBox>
 #include <QLayout>
 #include <QGridLayout>
 #include <QApplication>
 #include <QStyle>
 
 // KDE includes
 
 #include <klocalizedstring.h>
 
 // Local includes
 
 #include "dnuminput.h"
 
 namespace Digikam
 {
 
 class Q_DECL_HIDDEN DImgJPEG2000ExportSettings::Private
 {
 
 public:
 
     explicit Private()
       : JPEG2000Grid            (nullptr),
         labelJPEG2000compression(nullptr),
         JPEG2000LossLess        (nullptr),
         JPEG2000compression     (nullptr)
     {
     }
 
     QGridLayout*  JPEG2000Grid;
 
     QLabel*       labelJPEG2000compression;
 
     QCheckBox*    JPEG2000LossLess;
 
     DIntNumInput* JPEG2000compression;
 };
 
 DImgJPEG2000ExportSettings::DImgJPEG2000ExportSettings(QWidget* const parent)
     : DImgLoaderSettings(parent),
       d                 (new Private)
 {
     const int spacing = qMin(QApplication::style()->pixelMetric(QStyle::PM_LayoutHorizontalSpacing),
                              QApplication::style()->pixelMetric(QStyle::PM_LayoutVerticalSpacing));
 
     d->JPEG2000Grid     = new QGridLayout(this);
     d->JPEG2000LossLess = new QCheckBox(i18n("Lossless JPEG 2000 files"), this);
 
     d->JPEG2000LossLess->setWhatsThis(i18n("<p>Toggle lossless compression for JPEG 2000 images.</p>"
                                            "<p>If this option is enabled, a lossless method will be used "
                                            "to compress JPEG 2000 pictures.</p>"));
 
     d->JPEG2000compression = new DIntNumInput(this);
     d->JPEG2000compression->setDefaultValue(75);
     d->JPEG2000compression->setRange(1, 100, 1);
     d->labelJPEG2000compression = new QLabel(i18n("JPEG 2000 quality:"), this);
 
     d->JPEG2000compression->setWhatsThis(i18n("<p>The quality value for JPEG 2000 images:</p>"
                                               "<p><b>1</b>: low quality (high compression and small "
                                               "file size)<br/>"
                                               "<b>50</b>: medium quality<br/>"
                                               "<b>75</b>: good quality (default)<br/>"
                                               "<b>100</b>: high quality (no compression and "
                                               "large file size)</p>"
                                               "<p><b>Note: JPEG 2000 is not a lossless image "
                                               "compression format when you use this setting.</b></p>"));
 
     d->JPEG2000Grid->addWidget(d->JPEG2000LossLess,         0, 0, 1, 2);
     d->JPEG2000Grid->addWidget(d->labelJPEG2000compression, 1, 0, 1, 2);
     d->JPEG2000Grid->addWidget(d->JPEG2000compression,      2, 0, 1, 2);
     d->JPEG2000Grid->setColumnStretch(1, 10);
     d->JPEG2000Grid->setRowStretch(3, 10);
     d->JPEG2000Grid->setContentsMargins(spacing, spacing, spacing, spacing);
     d->JPEG2000Grid->setSpacing(spacing);
 
     connect(d->JPEG2000LossLess, SIGNAL(toggled(bool)),
             this, SLOT(slotToggleJPEG2000LossLess(bool)));
 
     connect(d->JPEG2000LossLess, SIGNAL(toggled(bool)),
             this, SIGNAL(signalSettingsChanged()));
 
     connect(d->JPEG2000compression, SIGNAL(valueChanged(int)),
             this, SIGNAL(signalSettingsChanged()));
 }
 
 DImgJPEG2000ExportSettings::~DImgJPEG2000ExportSettings()
 {
     delete d;
 }
 
 void DImgJPEG2000ExportSettings::setSettings(const DImgLoaderPrms& set)
 {
     for (DImgLoaderPrms::const_iterator it = set.constBegin() ; it != set.constEnd() ; ++it)
     {
         if      (it.key() == QLatin1String("quality"))
         {
             d->JPEG2000compression->setValue(it.value().toInt());
         }
         else if (it.key() == QLatin1String("lossless"))
         {
             d->JPEG2000LossLess->setChecked(it.value().toBool());
         }
     }
 
     slotToggleJPEG2000LossLess(d->JPEG2000LossLess->isChecked());
 }
 
 DImgLoaderPrms DImgJPEG2000ExportSettings::settings() const
 {
     DImgLoaderPrms set;
     set.insert(QLatin1String("quality"),  d->JPEG2000compression->value());
     set.insert(QLatin1String("lossless"), d->JPEG2000LossLess->isChecked());
 
     return set;
 }
 
 void DImgJPEG2000ExportSettings::slotToggleJPEG2000LossLess(bool b)
 {
     d->JPEG2000compression->setEnabled(!b);
     d->labelJPEG2000compression->setEnabled(!b);
 }
 
 } // namespace Digikam
 
 #include "moc_dimgjpeg2000exportsettings.cpp"