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 "bcgimageoperation.h"
 
 // Qt
 #include <QImage>
 
 // KF
 #include <KLocalizedString>
 
 // Local
 #include "document/abstractdocumenteditor.h"
 #include "document/document.h"
 #include "document/documentjob.h"
 #include "gwenview_lib_debug.h"
 #include "imageutils.h"
 
 namespace Gwenview
 {
 class BCGJob : public ThreadedDocumentJob
 {
 public:
     BCGJob(const BCGImageOperation::BrightnessContrastGamma &bcg)
         : mBcg(bcg)
     {
     }
 
     void threadedStart() override
     {
         if (!checkDocumentEditor()) {
             return;
         }
         QImage img = document()->image();
         BCGImageOperation::apply(img, mBcg);
         document()->editor()->setImage(img);
         setError(NoError);
     }
 
 private:
     BCGImageOperation::BrightnessContrastGamma mBcg;
 };
 
 struct BCGImageOperationPrivate {
     QImage mOriginalImage;
     BCGImageOperation::BrightnessContrastGamma mBcg;
 };
 
 BCGImageOperation::BCGImageOperation(const BrightnessContrastGamma &bcg)
     : d(new BCGImageOperationPrivate)
 {
     setText(i18n("Adjust Colors"));
 
     d->mBcg = bcg;
 }
 
 BCGImageOperation::~BCGImageOperation()
 {
     delete d;
 }
 
 void BCGImageOperation::redo()
 {
     d->mOriginalImage = document()->image();
     redoAsDocumentJob(new BCGJob(d->mBcg));
 }
 
 void BCGImageOperation::undo()
 {
     if (!document()->editor()) {
         qCWarning(GWENVIEW_LIB_LOG) << "!document->editor()";
         return;
     }
     document()->editor()->setImage(d->mOriginalImage);
     finish(true);
 }
 
 void BCGImageOperation::apply(QImage &img, const BrightnessContrastGamma &bcg)
 {
     if (bcg.brightness != 0) {
         img = ImageUtils::changeBrightness(img, bcg.brightness);
     }
     if (bcg.contrast != 0) {
         img = ImageUtils::changeContrast(img, bcg.contrast + 100);
     }
     if (bcg.gamma != 0) {
         img = ImageUtils::changeGamma(img, bcg.gamma + 100);
     }
 }
 
 } // namespace
 
 #include "moc_bcgimageoperation.cpp"