147 lines
4.1 KiB
C++
147 lines
4.1 KiB
C++
/*
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Gwenview: an image viewer
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Copyright 2022 Ilya Pominov <ipominov@astralinux.ru>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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// Self
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#include "bcgwidget.h"
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// Qt
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#include <QDialogButtonBox>
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#include <QFormLayout>
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#include <QPushButton>
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#include <QSlider>
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#include <QSpinBox>
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#include <QTimer>
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#include <QVBoxLayout>
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// KF
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#include <KLocalizedString>
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// Local
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#include "gwenview_lib_debug.h"
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namespace Gwenview
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{
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struct BCGWidgetPrivate {
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void setupWidgets()
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{
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mCompressor = new QTimer(q);
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mCompressor->setInterval(10);
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mCompressor->setSingleShot(true);
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QObject::connect(mCompressor, &QTimer::timeout, q, [this]() {
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Q_EMIT q->bcgChanged();
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});
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auto sliderLayout = new QFormLayout;
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sliderLayout->addRow(i18n("Brightness:"), createSlider(&mBrightness));
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sliderLayout->addRow(i18n("Contrast:"), createSlider(&mContrast));
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sliderLayout->addRow(i18n("Gamma:"), createSlider(&mGamma));
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auto layout = new QVBoxLayout;
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layout->addLayout(sliderLayout);
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auto btnBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel | QDialogButtonBox::Reset);
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mOkBtn = btnBox->button(QDialogButtonBox::Ok);
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mOkBtn->setEnabled(false);
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mResetBtn = btnBox->button(QDialogButtonBox::Reset);
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mResetBtn->setEnabled(false);
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QObject::connect(btnBox, &QDialogButtonBox::rejected, q, [this]() {
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Q_EMIT q->done(false);
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});
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QObject::connect(btnBox, &QDialogButtonBox::accepted, q, [this]() {
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Q_EMIT q->done(true);
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});
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QObject::connect(btnBox->button(QDialogButtonBox::Reset), &QAbstractButton::clicked, q, &BCGWidget::reset);
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layout->addWidget(btnBox);
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q->setLayout(layout);
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}
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QLayout *createSlider(int *field)
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{
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auto slider = new QSlider(Qt::Horizontal);
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slider->setMinimum(-100);
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slider->setMaximum(100);
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auto spinBox = new QSpinBox;
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spinBox->setMinimum(-100);
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spinBox->setMaximum(100);
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QObject::connect(slider, &QSlider::valueChanged, spinBox, &QSpinBox::setValue);
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QObject::connect(spinBox, qOverload<int>(&QSpinBox::valueChanged), q, [this, slider, field](int value) {
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slider->blockSignals(true);
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slider->setValue(value);
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slider->blockSignals(false);
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*field = value;
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bool bcgChanged = mBrightness != 0 || mContrast != 0 || mGamma != 0;
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mOkBtn->setEnabled(bcgChanged);
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mResetBtn->setEnabled(bcgChanged);
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mCompressor->start();
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});
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QObject::connect(q, &BCGWidget::reset, q, [slider]() {
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slider->setValue(0);
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});
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auto layout = new QHBoxLayout;
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layout->addWidget(slider);
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layout->addWidget(spinBox);
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return layout;
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}
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BCGWidget *q = nullptr;
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QTimer *mCompressor = nullptr;
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QAbstractButton *mOkBtn = nullptr;
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QAbstractButton *mResetBtn = nullptr;
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int mBrightness = 0;
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int mContrast = 0;
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int mGamma = 0;
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};
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BCGWidget::BCGWidget()
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: QWidget(nullptr)
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, d(new BCGWidgetPrivate)
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{
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setWindowFlags(Qt::Tool);
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d->q = this;
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d->setupWidgets();
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}
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BCGWidget::~BCGWidget()
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{
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delete d;
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}
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int BCGWidget::brightness() const
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{
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return d->mBrightness;
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}
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int BCGWidget::contrast() const
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{
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return d->mContrast;
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}
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int BCGWidget::gamma() const
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{
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return d->mGamma;
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}
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} // namespace
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#include "moc_bcgwidget.cpp"
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