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C++

/*
Gwenview: an image viewer
Copyright 2007-2012 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.
*/
// Qt
#include <QAction>
#include <QDebug>
#include <QFileDialog>
#include <QMenu>
#include <QUrl>
// KF
#include <KActionCollection>
#include <KIO/FileCopyJob>
#include <KIO/JobUiDelegate>
#include <KIO/StoredTransferJob>
#include <KJobWidgets>
#include <KLocalizedString>
#include <KPluginFactory>
#include <KPropertiesDialog>
#include <KStandardAction>
// Local
#include "../lib/document/document.h"
#include "../lib/document/documentfactory.h"
#include "../lib/documentview/documentview.h"
#include "../lib/documentview/documentviewcontainer.h"
#include "../lib/documentview/documentviewcontroller.h"
#include "../lib/urlutils.h"
#include "gvbrowserextension.h"
#include "gvpart.h"
namespace Gwenview
{
K_PLUGIN_CLASS_WITH_JSON(GVPart, "gvpart.json")
GVPart::GVPart(QWidget *parentWidget, QObject *parent, const KPluginMetaData &metaData, const QVariantList & /*args*/)
: KParts::ReadOnlyPart(parent, metaData)
{
auto container = new DocumentViewContainer(parentWidget);
setWidget(container);
mDocumentView = container->createView();
connect(mDocumentView, &DocumentView::captionUpdateRequested, this, &KParts::Part::setWindowCaption);
connect(mDocumentView, &DocumentView::completed, this, QOverload<>::of(&KParts::ReadOnlyPart::completed));
connect(mDocumentView, &DocumentView::contextMenuRequested, this, &GVPart::showContextMenu);
// Necessary to have zoom actions
auto documentViewController = new DocumentViewController(actionCollection(), this);
documentViewController->setView(mDocumentView);
auto action = new QAction(actionCollection());
action->setText(i18nc("@action", "Properties"));
action->setShortcut(QKeySequence(Qt::ALT | Qt::Key_Return));
connect(action, &QAction::triggered, this, &GVPart::showProperties);
actionCollection()->addAction(QStringLiteral("file_show_properties"), action);
KStandardAction::saveAs(this, SLOT(saveAs()), actionCollection());
new GVBrowserExtension(this);
setXMLFile(QStringLiteral("gvpart.rc"), true);
}
void GVPart::showProperties()
{
KPropertiesDialog::showDialog(url(), widget());
}
bool GVPart::openUrl(const QUrl &url)
{
if (!url.isValid()) {
return false;
}
setUrl(url);
Document::Ptr doc = DocumentFactory::instance()->load(url);
if (arguments().reload()) {
doc->reload();
}
if (!UrlUtils::urlIsFastLocalFile(url)) {
// Keep raw data of remote files to avoid downloading them again in
// saveAs()
doc->setKeepRawData(true);
}
DocumentView::Setup setup;
setup.zoomToFit = true;
mDocumentView->openUrl(url, setup);
mDocumentView->setCurrent(true);
return true;
}
inline void addActionToMenu(QMenu *menu, KActionCollection *actionCollection, const char *name)
{
QAction *action = actionCollection->action(name);
if (action) {
menu->addAction(action);
}
}
void GVPart::showContextMenu()
{
QMenu menu(widget());
addActionToMenu(&menu, actionCollection(), "file_save_as");
menu.addSeparator();
addActionToMenu(&menu, actionCollection(), "view_actual_size");
addActionToMenu(&menu, actionCollection(), "view_zoom_to_fit");
addActionToMenu(&menu, actionCollection(), "view_zoom_in");
addActionToMenu(&menu, actionCollection(), "view_zoom_out");
menu.addSeparator();
addActionToMenu(&menu, actionCollection(), "file_show_properties");
menu.exec(QCursor::pos());
}
void GVPart::saveAs()
{
const QUrl srcUrl = url();
const QUrl dstUrl = QFileDialog::getSaveFileUrl(widget(), QString(), srcUrl);
if (!dstUrl.isValid()) {
return;
}
KIO::Job *job;
Document::Ptr doc = DocumentFactory::instance()->load(srcUrl);
const QByteArray rawData = doc->rawData();
if (!rawData.isEmpty()) {
job = KIO::storedPut(rawData, dstUrl, -1);
} else {
job = KIO::file_copy(srcUrl, dstUrl);
}
connect(job, &KJob::result, this, &GVPart::showJobError);
}
void GVPart::showJobError(KJob *job)
{
if (job->error() != 0) {
KJobUiDelegate *ui = static_cast<KIO::Job *>(job)->uiDelegate();
if (!ui) {
qCritical() << "Saving failed. job->ui() is null.";
return;
}
KJobWidgets::setWindow(job, widget());
ui->showErrorMessage();
}
}
} // namespace
#include "gvpart.moc"
#include "moc_gvpart.cpp"