kde-extraapps/gwenview/lib/abstractimageoperation.cpp
2015-02-27 11:02:43 +00:00

114 lines
2.4 KiB
C++

// 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 "moc_abstractimageoperation.cpp"
// Qt
// KDE
#include <KJob>
#include <KUrl>
// Local
#include "document/documentfactory.h"
#include "document/documentjob.h"
namespace Gwenview
{
class ImageOperationCommand : public QUndoCommand
{
public:
ImageOperationCommand(AbstractImageOperation* op)
: mOp(op)
{}
~ImageOperationCommand()
{
delete mOp;
}
virtual void undo()
{
mOp->undo();
}
private:
AbstractImageOperation* mOp;
};
struct AbstractImageOperationPrivate
{
QString mText;
KUrl mUrl;
};
AbstractImageOperation::AbstractImageOperation()
: d(new AbstractImageOperationPrivate)
{
}
AbstractImageOperation::~AbstractImageOperation()
{
delete d;
}
void AbstractImageOperation::applyToDocument(Document::Ptr doc)
{
d->mUrl = doc->url();
redo();
}
Document::Ptr AbstractImageOperation::document() const
{
Document::Ptr doc = DocumentFactory::instance()->load(d->mUrl);
doc->startLoadingFullImage();
return doc;
}
void AbstractImageOperation::finish(bool ok)
{
if (ok) {
ImageOperationCommand* command = new ImageOperationCommand(this);
command->setText(d->mText);
document()->undoStack()->push(command);
} else {
deleteLater();
}
}
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, SIGNAL(result(KJob*)), SLOT(finishFromKJob(KJob*)));
document()->enqueueJob(job);
}
} // namespace