File indexing completed on 2025-01-19 04:01:38

 /*
 Gwenview: an image viewer
 Copyright 2022 Ilya Pominov <ipominov@astralinux.ru>
 
 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
 of the License, 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.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
 */
 // Self
 #include "bcgwidget.h"
 
 // Qt
 #include <QDialogButtonBox>
 #include <QFormLayout>
 #include <QPushButton>
 #include <QSlider>
 #include <QSpinBox>
 #include <QTimer>
 #include <QVBoxLayout>
 
 // KF
 #include <KLocalizedString>
 
 // Local
 #include "gwenview_lib_debug.h"
 
 namespace Gwenview
 {
 struct BCGWidgetPrivate {
     void setupWidgets()
     {
         mCompressor = new QTimer(q);
         mCompressor->setInterval(10);
         mCompressor->setSingleShot(true);
         QObject::connect(mCompressor, &QTimer::timeout, q, [this]() {
             Q_EMIT q->bcgChanged();
         });
 
         auto sliderLayout = new QFormLayout;
         sliderLayout->addRow(i18n("Brightness:"), createSlider(&mBrightness));
         sliderLayout->addRow(i18n("Contrast:"), createSlider(&mContrast));
         sliderLayout->addRow(i18n("Gamma:"), createSlider(&mGamma));
 
         auto layout = new QVBoxLayout;
         layout->addLayout(sliderLayout);
 
         auto btnBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel | QDialogButtonBox::Reset);
         mOkBtn = btnBox->button(QDialogButtonBox::Ok);
         mOkBtn->setEnabled(false);
         mResetBtn = btnBox->button(QDialogButtonBox::Reset);
         mResetBtn->setEnabled(false);
         QObject::connect(btnBox, &QDialogButtonBox::rejected, q, [this]() {
             Q_EMIT q->done(false);
         });
         QObject::connect(btnBox, &QDialogButtonBox::accepted, q, [this]() {
             Q_EMIT q->done(true);
         });
         QObject::connect(btnBox->button(QDialogButtonBox::Reset), &QAbstractButton::clicked, q, &BCGWidget::reset);
         layout->addWidget(btnBox);
 
         q->setLayout(layout);
     }
 
     QLayout *createSlider(int *field)
     {
         auto slider = new QSlider(Qt::Horizontal);
         slider->setMinimum(-100);
         slider->setMaximum(100);
         auto spinBox = new QSpinBox;
         spinBox->setMinimum(-100);
         spinBox->setMaximum(100);
 
         QObject::connect(slider, &QSlider::valueChanged, spinBox, &QSpinBox::setValue);
         QObject::connect(spinBox, qOverload<int>(&QSpinBox::valueChanged), q, [this, slider, field](int value) {
             slider->blockSignals(true);
             slider->setValue(value);
             slider->blockSignals(false);
             *field = value;
             bool bcgChanged = mBrightness != 0 || mContrast != 0 || mGamma != 0;
             mOkBtn->setEnabled(bcgChanged);
             mResetBtn->setEnabled(bcgChanged);
             mCompressor->start();
         });
         QObject::connect(q, &BCGWidget::reset, q, [slider]() {
             slider->setValue(0);
         });
 
         auto layout = new QHBoxLayout;
         layout->addWidget(slider);
         layout->addWidget(spinBox);
         return layout;
     }
 
     BCGWidget *q = nullptr;
     QTimer *mCompressor = nullptr;
     QAbstractButton *mOkBtn = nullptr;
     QAbstractButton *mResetBtn = nullptr;
     int mBrightness = 0;
     int mContrast = 0;
     int mGamma = 0;
 };
 
 BCGWidget::BCGWidget()
     : QWidget(nullptr)
     , d(new BCGWidgetPrivate)
 {
     setWindowFlags(Qt::Tool);
 
     d->q = this;
     d->setupWidgets();
 }
 
 BCGWidget::~BCGWidget()
 {
     delete d;
 }
 
 int BCGWidget::brightness() const
 {
     return d->mBrightness;
 }
 
 int BCGWidget::contrast() const
 {
     return d->mContrast;
 }
 
 int BCGWidget::gamma() const
 {
     return d->mGamma;
 }
 
 } // namespace
 
 #include "moc_bcgwidget.cpp"