File indexing completed on 2024-04-28 04:18:50

 // vim: set tabstop=4 shiftwidth=4 expandtab:
 /*
 Gwenview: an image viewer
 Copyright 2007 Aurélien Gâteau <agateau@kde.org>
 
 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 "abstractimageoperation.h"
 
 // Qt
 #include <QTimer>
 #include <QUrl>
 
 // KF
 #include <KJob>
 
 // Local
 #include "document/documentfactory.h"
 #include "document/documentjob.h"
 
 namespace Gwenview
 {
 class ImageOperationCommand : public QUndoCommand
 {
 public:
     ImageOperationCommand(AbstractImageOperation *op)
         : mOp(op)
     {
     }
 
     ~ImageOperationCommand() override
     {
         delete mOp;
     }
 
     void undo() override
     {
         mOp->undo();
     }
 
     void redo() override
     {
         mOp->redo();
     }
 
 private:
     AbstractImageOperation *const mOp;
 };
 
 struct AbstractImageOperationPrivate {
     QString mText;
     QUrl mUrl;
     ImageOperationCommand *mCommand;
 };
 
 AbstractImageOperation::AbstractImageOperation()
     : d(new AbstractImageOperationPrivate)
 {
 }
 
 AbstractImageOperation::~AbstractImageOperation()
 {
     delete d;
 }
 
 void AbstractImageOperation::applyToDocument(Document::Ptr doc)
 {
     d->mUrl = doc->url();
 
     d->mCommand = new ImageOperationCommand(this);
     d->mCommand->setText(d->mText);
     // QUndoStack::push() executes command by calling its redo() function
     doc->undoStack()->push(d->mCommand);
 }
 
 Document::Ptr AbstractImageOperation::document() const
 {
     Document::Ptr doc = DocumentFactory::instance()->load(d->mUrl);
     doc->startLoadingFullImage();
     return doc;
 }
 
 void AbstractImageOperation::finish(bool ok)
 {
     if (ok) {
         // Give QUndoStack time to update in case the redo/undo is executed immediately
         // (e.g. undo crop just sets the previous image)
         QTimer::singleShot(0, document().data(), &Document::imageOperationCompleted);
     } else {
         // Remove command from undo stack without executing undo()
         d->mCommand->setObsolete(true);
         document()->undoStack()->undo();
     }
 }
 
 void AbstractImageOperation::finishFromKJob(KJob *job)
 {
     finish(job->error() == KJob::NoError);
 }
 
 void AbstractImageOperation::setText(const QString &text)
 {
     d->mText = text;
 }
 
 void AbstractImageOperation::redoAsDocumentJob(DocumentJob *job)
 {
     connect(job, &KJob::result, this, &AbstractImageOperation::finishFromKJob);
     document()->enqueueJob(job);
 }
 
 } // namespace
 
 #include "moc_abstractimageoperation.cpp"