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/* This file is part of KDevelop
Copyright 2017 Friedrich W. H. Kossebau <kossebau@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "templatepreviewicon.h"
#include <debug.h>
#include <KTar>
#include <KZip>
#include <QSharedData>
#include <QIcon>
#include <QPixmap>
#include <QFileInfo>
#include <QStandardPaths>
using namespace KDevelop;
class KDevelop::TemplatePreviewIconData
: public QSharedData
{
public:
QString iconName;
QString archivePath;
QString dataDir;
};
TemplatePreviewIcon::TemplatePreviewIcon(const QString& iconName, const QString& archivePath, const QString& dataDir)
: d(new TemplatePreviewIconData)
{
d->iconName = iconName;
d->archivePath = archivePath;
d->dataDir = dataDir;
}
TemplatePreviewIcon::TemplatePreviewIcon()
: d(new TemplatePreviewIconData)
{
}
TemplatePreviewIcon::TemplatePreviewIcon(const TemplatePreviewIcon& other)
: d(other.d)
{
}
TemplatePreviewIcon::~TemplatePreviewIcon() = default;
TemplatePreviewIcon& TemplatePreviewIcon::operator=(const TemplatePreviewIcon& other)
{
if (this != &other) {
d = other.d;
}
return *this;
}
QPixmap TemplatePreviewIcon::pixmap() const
{
if (!d->iconName.isEmpty()) {
// read icon from archive
QScopedPointer<KArchive> templateArchive;
if (QFileInfo(d->archivePath).completeSuffix() == QLatin1String("zip")) {
templateArchive.reset(new KZip(d->archivePath));
} else {
templateArchive.reset(new KTar(d->archivePath));
}
if (templateArchive->open(QIODevice::ReadOnly)) {
const KArchiveFile* iconFile = templateArchive->directory()->file(d->iconName);
if (iconFile) {
QPixmap pixmap;
const bool loadSuccess = pixmap.loadFromData(iconFile->data());
if (loadSuccess) {
return pixmap;
}
qCWarning(LANGUAGE) << "Could not load preview icon" << d->iconName << "from" << d->archivePath;
}
}
// support legacy templates with image files installed separately in the filesystem
const QString iconFilePath = QStandardPaths::locate(QStandardPaths::GenericDataLocation,
d->dataDir + d->iconName);
if (!iconFilePath.isEmpty()) {
QPixmap pixmap(iconFilePath);
if (!pixmap.isNull()) {
return pixmap;
}
qCWarning(LANGUAGE) << "Could not load preview icon" << iconFilePath << "as wanted for" << d->archivePath;
}
}
// try theme icon or default to a kdevelop icon
// QIcon::hasThemeIcon for empty string can yield true with some engines, not wanted here
const bool isThemeIcon = (!d->iconName.isEmpty() && QIcon::hasThemeIcon(d->iconName));
const QString iconName = isThemeIcon ? d->iconName : QStringLiteral("kdevelop");
const QIcon icon = QIcon::fromTheme(iconName);
return icon.pixmap(128, 128);
}
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