From 5bed6e4a4c916a97f8fe4d1b07f7eecf4d733b90 Mon Sep 17 00:00:00 2001 From: Michele Calgaro Date: Fri, 22 Nov 2024 18:41:30 +0900 Subject: Rename 'digikam' folder to 'src' Signed-off-by: Michele Calgaro (cherry picked from commit ee0d99607c14cb63d3ebdb3a970b508949fa8219) --- src/libs/dimg/loaders/jpegsettings.cpp | 154 +++++++++++++++++++++++++++++++++ 1 file changed, 154 insertions(+) create mode 100644 src/libs/dimg/loaders/jpegsettings.cpp (limited to 'src/libs/dimg/loaders/jpegsettings.cpp') diff --git a/src/libs/dimg/loaders/jpegsettings.cpp b/src/libs/dimg/loaders/jpegsettings.cpp new file mode 100644 index 00000000..62bd6365 --- /dev/null +++ b/src/libs/dimg/loaders/jpegsettings.cpp @@ -0,0 +1,154 @@ +/* ============================================================ + * + * This file is a part of digiKam project + * http://www.digikam.org + * + * Date : 2007-08-02 + * Description : save JPEG image options. + * + * Copyright (C) 2007 by Gilles Caulier + * + * This program is free software; you can redistribute it + * and/or modify it under the terms of the GNU General + * Public License as published by the Free Software Foundation; + * either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * ============================================================ */ + +// TQt includes. + +#include +#include +#include +#include +#include + +// KDE includes. + +#include +#include +#include +#include + +// Local includes. + +#include "jpegsettings.h" +#include "jpegsettings.moc" + +namespace Digikam +{ + +class JPEGSettingsPriv +{ + +public: + + JPEGSettingsPriv() + { + JPEGGrid = 0; + labelJPEGcompression = 0; + JPEGcompression = 0; + labelWarning = 0; + labelSubSampling = 0; + subSamplingCB = 0; + } + + TQGridLayout *JPEGGrid; + + TQLabel *labelJPEGcompression; + TQLabel *labelSubSampling; + + TQComboBox *subSamplingCB; + + KActiveLabel *labelWarning; + + KIntNumInput *JPEGcompression; +}; + +JPEGSettings::JPEGSettings(TQWidget *parent) + : TQWidget(parent, 0, TQt::WDestructiveClose) +{ + d = new JPEGSettingsPriv; + + d->JPEGGrid = new TQGridLayout(this, 1, 2, KDialog::spacingHint()); + d->JPEGcompression = new KIntNumInput(75, this); + d->JPEGcompression->setRange(1, 100, 1, true ); + d->labelJPEGcompression = new TQLabel(i18n("JPEG quality:"), this); + + TQWhatsThis::add(d->JPEGcompression, i18n("

The JPEG image quality:

" + "1: low quality (high compression and small " + "file size)

" + "50: medium quality

" + "75: good quality (default)

" + "100: high quality (no compression and " + "large file size)

" + "Note: JPEG always uses lossy compression.")); + + d->labelWarning = new KActiveLabel(i18n("" + "Warning: JPEG is a
" + "lossy compression
" + "image format!

" + ""), this); + + d->labelWarning->setFrameStyle(TQFrame::Box | TQFrame::Plain); + d->labelWarning->setLineWidth(1); + d->labelWarning->setFrameShape(TQFrame::Box); + + d->labelSubSampling = new TQLabel(i18n("Chroma subsampling:"), this); + + d->subSamplingCB = new TQComboBox(false, this); + d->subSamplingCB->insertItem(i18n("None")); // 1x1, 1x1, 1x1 (4:4:4) + d->subSamplingCB->insertItem(i18n("Medium")); // 2x1, 1x1, 1x1 (4:2:2) + d->subSamplingCB->insertItem(i18n("High")); // 2x2, 1x1, 1x1 (4:1:1) + TQWhatsThis::add(d->subSamplingCB, i18n("

JPEG Chroma subsampling level \n(color is saved with less resolution " "than luminance):

" + "None=best: uses 4:4:4 ratio. Does not employ chroma " + "subsampling at all. This preserves edges and contrasting " + "colors, whilst adding no additional compression

" + "Medium: uses 4:2:2 ratio. Medium compression: reduces " + "the color resolution by one-third with little to " + "no visual difference

" + "High: use 4:1:1 ratio. High compression: suits " + "images with soft edges but tends to alter colors

" + "Note: JPEG always uses lossy compression.")); + + d->JPEGGrid->addMultiCellWidget(d->labelJPEGcompression, 0, 0, 0, 0); + d->JPEGGrid->addMultiCellWidget(d->JPEGcompression, 0, 0, 1, 1); + d->JPEGGrid->addMultiCellWidget(d->labelSubSampling, 1, 1, 0, 0); + d->JPEGGrid->addMultiCellWidget(d->subSamplingCB, 1, 1, 1, 1); + d->JPEGGrid->addMultiCellWidget(d->labelWarning, 0, 1, 2, 2); + d->JPEGGrid->setColStretch(1, 10); + d->JPEGGrid->setRowStretch(2, 10); +} + +JPEGSettings::~JPEGSettings() +{ + delete d; +} + +void JPEGSettings::setCompressionValue(int val) +{ + d->JPEGcompression->setValue(val); +} + +int JPEGSettings::getCompressionValue() +{ + return d->JPEGcompression->value(); +} + +void JPEGSettings::setSubSamplingValue(int val) +{ + d->subSamplingCB->setCurrentItem(val); +} + +int JPEGSettings::getSubSamplingValue() +{ + return d->subSamplingCB->currentItem(); +} + +} // namespace Digikam -- cgit v1.2.1