124 lines
3.2 KiB
C++
124 lines
3.2 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 "bcgtool.h"
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// Qt
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#include <QAbstractButton>
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#include <QDialogButtonBox>
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#include <QPainter>
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// KF
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// Local
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#include "bcgimageoperation.h"
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#include "bcgwidget.h"
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#include <lib/documentview/rasterimageview.h>
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namespace Gwenview
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{
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struct BCGToolPrivate {
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BCGImageOperation::BrightnessContrastGamma getBcg() const
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{
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BCGImageOperation::BrightnessContrastGamma bcg;
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bcg.brightness = mBCGWidget->brightness();
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bcg.contrast = mBCGWidget->contrast();
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bcg.gamma = mBCGWidget->gamma();
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return bcg;
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}
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BCGTool *q = nullptr;
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BCGWidget *mBCGWidget = nullptr;
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QImage mImage;
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};
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BCGTool::BCGTool(RasterImageView *view)
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: AbstractRasterImageViewTool(view)
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, d(new BCGToolPrivate)
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{
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d->q = this;
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d->mBCGWidget = new BCGWidget;
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connect(d->mBCGWidget, &BCGWidget::bcgChanged, this, &BCGTool::slotBCGRequested);
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connect(d->mBCGWidget, &BCGWidget::done, this, [this](bool accept) {
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if (accept) {
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auto op = new BCGImageOperation(d->getBcg());
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Q_EMIT imageOperationRequested(op);
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}
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Q_EMIT done();
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});
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d->mImage = view->document()->image();
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}
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BCGTool::~BCGTool()
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{
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// mBCGWidget is a child of its container not of us, so it is not deleted automatically
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delete d->mBCGWidget;
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delete d;
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}
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void BCGTool::paint(QPainter *painter)
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{
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const QRectF docRect = imageView()->mapToView(QRectF(QPointF(), imageView()->documentSize()));
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painter->eraseRect(docRect);
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painter->drawImage(docRect, d->mImage);
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}
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void BCGTool::keyPressEvent(QKeyEvent *event)
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{
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auto buttons = d->mBCGWidget->findChild<QDialogButtonBox *>();
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switch (event->key()) {
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case Qt::Key_Escape:
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event->accept();
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Q_EMIT buttons->rejected();
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break;
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case Qt::Key_Return:
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case Qt::Key_Enter: {
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event->accept();
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auto focusButton = static_cast<QAbstractButton *>(buttons->focusWidget());
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if (focusButton && buttons->buttonRole(focusButton) == QDialogButtonBox::RejectRole) {
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Q_EMIT buttons->rejected();
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} else {
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Q_EMIT buttons->accepted();
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}
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break;
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}
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default:
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break;
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}
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}
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QWidget *BCGTool::widget() const
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{
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return d->mBCGWidget;
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}
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void BCGTool::slotBCGRequested()
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{
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d->mImage = imageView()->document()->image();
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BCGImageOperation::apply(d->mImage, d->getBcg());
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imageView()->update();
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}
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} // namespace
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#include "moc_bcgtool.cpp"
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