// vim: set tabstop=4 shiftwidth=4 expandtab: /* Gwenview: an image viewer Copyright 2007 Aurélien Gâteau 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 #include // KF #include // 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"