File indexing completed on 2024-05-12 04:19:35

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