-/***************************************************************************
- * Copyright (C) 2012 by Peter Penz <peter.penz19@gmail.com> *
- * *
- * 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 *
- ***************************************************************************/
-
-#include "knepomukrolesprovider.h"
-
-#include <KDebug>
-#include <KGlobal>
-#include <KLocale>
-
-#include <Nepomuk2/Resource>
-#include <Nepomuk2/Tag>
-#include <Nepomuk2/Types/Property>
-#include <Nepomuk2/Variant>
-
-#include <QTime>
-
-struct KNepomukRolesProviderSingleton
-{
- KNepomukRolesProvider instance;
-};
-K_GLOBAL_STATIC(KNepomukRolesProviderSingleton, s_nepomukRolesProvider)
-
-
-KNepomukRolesProvider& KNepomukRolesProvider::instance()
-{
- return s_nepomukRolesProvider->instance;
-}
-
-KNepomukRolesProvider::~KNepomukRolesProvider()
-{
-}
-
-QSet<QByteArray> KNepomukRolesProvider::roles() const
-{
- return m_roles;
-}
-
-QHash<QByteArray, QVariant> KNepomukRolesProvider::roleValues(const Nepomuk2::Resource& resource,
- const QSet<QByteArray>& roles) const
-{
- if (!resource.isValid()) {
- return QHash<QByteArray, QVariant>();
- }
-
- QHash<QByteArray, QVariant> values;
-
- int width = -1;
- int height = -1;
-
- QHashIterator<QUrl, Nepomuk2::Variant> it(resource.properties());
- while (it.hasNext()) {
- it.next();
-
- const Nepomuk2::Types::Property property = it.key();
- const QByteArray role = roleForPropertyUri(property.uri());
- if (role.isEmpty() || !roles.contains(role)) {
- continue;
- }
-
- const Nepomuk2::Variant value = it.value();
-
- if (role == "imageSize") {
- // Merge the two Nepomuk properties for width and height
- // as one string into the "imageSize" role
- const QString uri = property.uri().toString();
- if (uri.endsWith(QLatin1String("#width"))) {
- width = value.toInt();
- } else if (uri.endsWith(QLatin1String("#height"))) {
- height = value.toInt();
- }
-
- if (width >= 0 && height >= 0) {
- const QString widthAndHeight = QString::number(width) +
- QLatin1String(" x ") +
- QString::number(height);
- values.insert(role, widthAndHeight);
- }
- } else if (role == "tags") {
- const QString tags = tagsFromValues(value.toStringList());
- values.insert(role, tags);
- } else if (role == "orientation") {
- const QString orientation = orientationFromValue(value.toInt());
- values.insert(role, orientation);
- } else if (role == "duration") {
- const QString duration = durationFromValue(value.toInt());
- values.insert(role, duration);
- } else if (value.isResource()) {
- const Nepomuk2::Resource resource = value.toResource();
- values.insert(role, resource.genericLabel());
- } else if (value.isResourceList()) {
- const QList<Nepomuk2::Resource> resList = value.toResourceList();
- QStringList strList;
- foreach (const Nepomuk2::Resource& res, resList) {
- strList << res.genericLabel();
- }
- values.insert(role, strList.join(QLatin1String(", ")));
- } else {
- values.insert(role, value.toString());
- }
- }
-
- return values;
-}
-
-QByteArray KNepomukRolesProvider::roleForPropertyUri(const QUrl& uri) const
-{
- return m_roleForUri.value(uri);
-}
-
-KNepomukRolesProvider::KNepomukRolesProvider() :
- m_roles(),
- m_roleForUri()
-{
- struct UriInfo
- {
- const char* const uri;
- const char* const role;
- };
-
- // Mapping from the URIs to the KFileItemModel roles. Note that this must not be
- // a 1:1 mapping: One role may contain several URI-values (e.g. the URIs for height and
- // width of an image are mapped to the role "imageSize")
- static const UriInfo uriInfoList[] = {
- { "http://www.semanticdesktop.org/ontologies/2007/08/15/nao#numericRating", "rating" },
- { "http://www.semanticdesktop.org/ontologies/2007/08/15/nao#hasTag", "tags" },
- { "http://www.semanticdesktop.org/ontologies/2007/08/15/nao#description", "comment" },
- { "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#wordCount", "wordCount" },
- { "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#lineCount", "lineCount" },
- { "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#width", "imageSize" },
- { "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#height", "imageSize" },
- { "http://www.semanticdesktop.org/ontologies/2007/05/10/nexif#orientation", "orientation", },
- { "http://www.semanticdesktop.org/ontologies/2009/02/19/nmm#performer", "artist" },
- { "http://www.semanticdesktop.org/ontologies/2009/02/19/nmm#musicAlbum", "album" },
- { "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#duration", "duration" },
- { "http://www.semanticdesktop.org/ontologies/2009/02/19/nmm#trackNumber", "track" },
- { "http://www.semanticdesktop.org/ontologies/2010/04/30/ndo#copiedFrom", "copiedFrom" }
- };
-
- for (unsigned int i = 0; i < sizeof(uriInfoList) / sizeof(UriInfo); ++i) {
- m_roleForUri.insert(QUrl(uriInfoList[i].uri), uriInfoList[i].role);
- m_roles.insert(uriInfoList[i].role);
- }
-}
-
-QString KNepomukRolesProvider::tagsFromValues(const QStringList& values) const
-{
- QString tags;
-
- for (int i = 0; i < values.count(); ++i) {
- if (i > 0) {
- tags.append(QLatin1String(", "));
- }
-
- const Nepomuk2::Tag tag(values[i]);
- tags += tag.genericLabel();
- }
-
- return tags;
-}
-
-QString KNepomukRolesProvider::orientationFromValue(int value) const
-{
- QString string;
- switch (value) {
- case 1: string = i18nc("@item:intable Image orientation", "Unchanged"); break;
- case 2: string = i18nc("@item:intable Image orientation", "Horizontally flipped"); break;
- case 3: string = i18nc("@item:intable image orientation", "180° rotated"); break;
- case 4: string = i18nc("@item:intable image orientation", "Vertically flipped"); break;
- case 5: string = i18nc("@item:intable image orientation", "Transposed"); break;
- case 6: string = i18nc("@item:intable image orientation", "90° rotated"); break;
- case 7: string = i18nc("@item:intable image orientation", "Transversed"); break;
- case 8: string = i18nc("@item:intable image orientation", "270° rotated"); break;
- default:
- break;
- }
- return string;
-}
-
-QString KNepomukRolesProvider::durationFromValue(int value) const
-{
- QTime duration;
- duration = duration.addSecs(value);
- return duration.toString("hh:mm:ss");
-}
-
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