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C++ MediaQuery::select方法代码示例

本文整理汇总了C++中MediaQuery::select方法的典型用法代码示例。如果您正苦于以下问题：C++ MediaQuery::select方法的具体用法？C++ MediaQuery::select怎么用？C++ MediaQuery::select使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MediaQuery的用法示例。


在下文中一共展示了MediaQuery::select方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: run

void AudioStreamListEngine::run()
{
    QThread::setTerminationEnabled(true);
    m_stop = false;

    if (m_updateSourceInfo || m_removeSourceInfo) {
        NepomukListEngine::run();
        return;
    }
    
    //Create media list based on engine argument and filter
    QList<MediaItem> mediaList;
    MediaVocabulary mediaVocabulary = MediaVocabulary();
    
    QString engineArg = m_mediaListProperties.engineArg();
    QString engineFilter = m_mediaListProperties.engineFilter();
    
    if (m_nepomukInited) {
        if (engineArg.isEmpty()) {
            MediaQuery query;
            QStringList bindings;
            bindings.append(mediaVocabulary.mediaResourceBinding());
            bindings.append(mediaVocabulary.mediaResourceUrlBinding());
            bindings.append(mediaVocabulary.titleBinding());
            bindings.append(mediaVocabulary.ratingBinding());
            bindings.append(mediaVocabulary.descriptionBinding());
            bindings.append(mediaVocabulary.artworkBinding());
            //bindings.append(mediaVocabulary.genreBinding());
            query.select(bindings, MediaQuery::Distinct);
            query.startWhere();
            query.addCondition(mediaVocabulary.hasTypeAudioStream(MediaQuery::Required));
            query.addCondition(mediaVocabulary.hasTitle(MediaQuery::Required));
            query.addCondition(mediaVocabulary.hasRating(MediaQuery::Optional));
            query.addCondition(mediaVocabulary.hasDescription(MediaQuery::Optional));
            query.addCondition(mediaVocabulary.hasArtwork(MediaQuery::Optional));
            query.endWhere();
            QStringList orderByBindings;
            orderByBindings.append(mediaVocabulary.titleBinding());
            query.orderBy(orderByBindings);
            
            Soprano::QueryResultIterator it = query.executeSelect(m_mainModel);
            
            //Build media list from results
            while( it.next() ) {
                if (m_stop) {
                    return;
                }
                MediaItem mediaItem = Utilities::mediaItemFromIterator(it, QString("Audio Stream"), m_mediaListProperties.lri);
                if (!mediaItem.url.startsWith(QLatin1String("nepomuk:/"))) {
                    mediaList.append(mediaItem);
                }
            }
            
            m_mediaListProperties.summary = i18np("1 stream", "%1 streams", mediaList.count());
            
            MediaItem mediaItem;
            mediaItem.type = "Audio";
            mediaItem.url.clear();
            mediaItem.title = i18n("New Audio Stream");
            mediaItem.subTitle = i18n("Edit info to create new audio stream");
            mediaItem.artwork = KIcon("text-html");
            mediaItem.fields["title"] = i18n("Untitled");
            mediaItem.fields["audioType"] = "Audio Stream";
            mediaItem.fields["isTemplate"] = true;
            mediaList.append(mediaItem);
            
            m_mediaListProperties.type = QString("Sources");
            
        } else if (engineArg.toLower() == "search") {
            MediaQuery query;
            QStringList bindings;
            bindings.append(mediaVocabulary.mediaResourceBinding());
            bindings.append(mediaVocabulary.mediaResourceUrlBinding());
            bindings.append(mediaVocabulary.titleBinding());
            bindings.append(mediaVocabulary.ratingBinding());
            bindings.append(mediaVocabulary.descriptionBinding());
            bindings.append(mediaVocabulary.artworkBinding());
            //bindings.append(mediaVocabulary.genreBinding());
            query.select(bindings, MediaQuery::Distinct);
            query.startWhere();
            query.addCondition(mediaVocabulary.hasTypeAudioStream(MediaQuery::Required));
            query.addCondition(mediaVocabulary.hasTitle(MediaQuery::Required));
            query.addCondition(mediaVocabulary.hasRating(MediaQuery::Optional));
            query.addCondition(mediaVocabulary.hasDescription(MediaQuery::Optional));
            query.addCondition(mediaVocabulary.hasArtwork(MediaQuery::Optional));
            query.startFilter();
            query.addFilterConstraint(mediaVocabulary.titleBinding(), engineFilter, MediaQuery::Contains);
            query.addFilterOr();
            query.addFilterConstraint(mediaVocabulary.descriptionBinding(), engineFilter, MediaQuery::Contains);
            query.endFilter();
            query.endWhere();
            QStringList orderByBindings;
            orderByBindings.append(mediaVocabulary.titleBinding());
            query.orderBy(orderByBindings);
            
            Soprano::QueryResultIterator it = query.executeSelect(m_mainModel);
            
            //Build media list from results
            while( it.next() ) {
                MediaItem mediaItem = Utilities::mediaItemFromIterator(it, QString("Audio Stream"), m_mediaListProperties.lri);
//.........这里部分代码省略.........
开发者ID:KDE，项目名称:bangarang，代码行数:101，代码来源:audiostreamlistengine.cpp

示例2: start


//.........这里部分代码省略.........
            Nepomuk2::Variant value = resource.property(property);
            if (value.toResource().hasType(Nepomuk2::Vocabulary::NFO::Image())) {
                resource.removeProperty(property);
                resource.setProperty(mediaVocabulary.artwork(), value);
            }
        }
        property = QUrl("http://www.semanticdesktop.org/ontologies/nmm#genre");
        if (resource.hasProperty(property)) {
            Nepomuk2::Variant value = resource.property(property);
            resource.removeProperty(property);
            resource.setProperty(mediaVocabulary.genre(), value);
        }
        property = QUrl("http://www.semanticdesktop.org/ontologies/nmm#releaseDate");
        if (resource.hasProperty(property)) {
            Nepomuk2::Variant value = resource.property(property);
            resource.removeProperty(property);
            resource.setProperty(mediaVocabulary.releaseDate(), value);
        }
        property = Soprano::Vocabulary::Xesam::useCount();
        if (resource.hasProperty(property)) {
            Nepomuk2::Variant value = resource.property(property);
            resource.removeProperty(property);
            resource.setProperty(mediaVocabulary.playCount(), value);
        }
        property = Soprano::Vocabulary::Xesam::lastUsed();
        if (resource.hasProperty(property)) {
            Nepomuk2::Variant value = resource.property(property);
            resource.removeProperty(property);
            resource.setProperty(mediaVocabulary.lastPlayed(), value);
        }
        
        emit infoMessage(i18n("<b>Updating video types and properties</b><br>%1 video items done...", i));
        QApplication::processEvents();
    }


    //Fix screwed up properties
    MediaQuery query;
    QStringList bindings;
    bindings.append(mediaVocabulary.mediaResourceBinding());
    bindings.append(mediaVocabulary.ratingBinding());
    query.select(bindings, MediaQuery::Distinct);
    query.startWhere();
    query.addCondition(mediaVocabulary.hasTypeAnyAudio(MediaQuery::Required));
    query.addCondition(mediaVocabulary.hasRating(MediaQuery::Required, 10, MediaQuery::GreaterThan));
    query.endWhere();
    it = m_mainModel->executeQuery(query.query(), Soprano::Query::QueryLanguageSparql);
    emit infoMessage(i18n("<b>Updating audio types and properties</b><br>0 items updated..."));
    QApplication::processEvents();
    i = 0;
    while( it.next() && !m_stopUpdate) {
        QApplication::processEvents();
        i++;
        Nepomuk2::Resource resource = Nepomuk2::Resource(it.binding("r").uri());
        QUrl property = QUrl("http://www.semanticdesktop.org/ontologies/2007/08/15/nao#numericRating");
        if (resource.hasProperty(property)) {
            int rating = resource.property(property).toInt();
            if (rating > 10) {
                resource.removeProperty(property);
            }
        }
        emit infoMessage(i18n("<b>Cleaning up erroneous audio properties</b><br>%1 audio items done...", i));
        QApplication::processEvents();
    }

    MediaQuery query1;
    bindings.clear();
    bindings.append(mediaVocabulary.mediaResourceBinding());
    bindings.append(mediaVocabulary.ratingBinding());
    query1.select(bindings, MediaQuery::Distinct);
    query1.startWhere();
    query1.addCondition(mediaVocabulary.hasTypeAnyVideo(MediaQuery::Required));
    query1.addCondition(mediaVocabulary.hasRating(MediaQuery::Required, 10, MediaQuery::GreaterThan));
    query1.endWhere();
    it = m_mainModel->executeQuery(query.query(), Soprano::Query::QueryLanguageSparql);
    emit infoMessage(i18n("<b>Updating audio types and properties</b><br>0 items updated..."));
    QApplication::processEvents();
    i = 0;
    while( it.next() && !m_stopUpdate) {
        QApplication::processEvents();
        i++;
        Nepomuk2::Resource resource = Nepomuk2::Resource(it.binding("r").uri());
        QUrl property = QUrl("http://www.semanticdesktop.org/ontologies/2007/08/15/nao#numericRating");
        if (resource.hasProperty(property)) {
            int rating = resource.property(property).toInt();
            if (rating > 10) {
                resource.removeProperty(property);
            }
        }
        emit infoMessage(i18n("<b>Cleaning up erroneous video properties</b><br>%1 video items done...", i));
        QApplication::processEvents();
    }

    if (!m_stopUpdate) {
        emit infoMessage(i18n("<b>Update complete.</b>"));
    } else {
        emit infoMessage(i18n("<b>Update stopped.</b>"));
    }
    emit done();
}
开发者ID:KDE，项目名称:bangarang，代码行数:101，代码来源:ontologyupdater.cpp

示例3: run

void SemanticsListEngine::run()
{
    QThread::setTerminationEnabled(true);
    m_stop = false;

    if (m_updateSourceInfo || m_removeSourceInfo) {
        NepomukListEngine::run();
        return;
    }
    
    //Create media list based on engine argument and filter
    QList<MediaItem> mediaList;
    MediaVocabulary mediaVocabulary = MediaVocabulary();
    
    QString engineArg = m_mediaListProperties.engineArg();
    QString engineFilter = m_mediaListProperties.engineFilter();
    QStringList engineFilterList = m_mediaListProperties.engineFilterList();
    
    //Parse filter
    QString mediaType;
    QString groupByCategoryType;
    QString groupByField;
    QString limitFilter;
    int originalGenreLimit = 0;
    if (engineFilterList.count() != 0) {
        mediaType = engineFilterList.at(0);
        if (engineFilterList.filter("groupBy=").count() != 0) {
            QString groupByFilter = engineFilterList.filter("groupBy=").at(0);
            groupByField = groupByFilter.remove("groupBy=").trimmed();
            if (groupByField == "artist") {
                groupByCategoryType = "Artist";
            } else if (groupByField == "album") {
                groupByCategoryType = "Album";
            } else if (groupByField == "genre") {
                if (mediaType == "audio") {
                    groupByCategoryType = "AudioGenre";
                } else if (mediaType == "video") {
                    groupByCategoryType = "VideoGenre";
                }
            } else if (groupByField == "seriesName") {
                groupByCategoryType = "TV Series";
            } else if (groupByField == "actor") {
                groupByCategoryType = "Actor";
            } else if (groupByField == "director") {
                groupByCategoryType = "Director";
            } else if (groupByField == "tag") {
                if (mediaType == "audio") {
                    groupByCategoryType = "AudioTag";
                } else if (mediaType == "video") {
                    groupByCategoryType = "VideoTag";
                }
            }
        }
        if (engineFilterList.filter("limit=").count() !=0) {
            limitFilter = engineFilterList.filter("limit=").at(0);
            if (groupByField == "genre") {
                originalGenreLimit = m_mediaListProperties.filterValue(limitFilter).trimmed().toInt();
                int originalFilterIndex = engineFilterList.indexOf(limitFilter);
                limitFilter = QString("%1%2%3").arg(m_mediaListProperties.filterField(limitFilter))
                                               .arg(m_mediaListProperties.filterOperator(limitFilter))
                                               .arg(m_mediaListProperties.filterValue(limitFilter).trimmed().toInt()*3);
                engineFilterList.replace(originalFilterIndex, limitFilter);
            }
        }
    }
    
    if (m_nepomukInited) {
        if (engineArg.toLower() == "frequent") {
            mediaList.clear();
            if (mediaType == "audio" || mediaType == "video") {
                MediaQuery query;
                bool ignoreZeros = false;
                if (groupByCategoryType.isEmpty()) {
                    QStringList bindings;
                    bindings.append(mediaVocabulary.mediaResourceBinding());
                    bindings.append(mediaVocabulary.mediaResourceUrlBinding());
                    bindings.append(mediaVocabulary.playCountBinding());
                    query.select(bindings, MediaQuery::Distinct);
                    query.startWhere();
                    if (mediaType == "audio") {
                        query.addCondition(mediaVocabulary.hasTypeAnyAudio(MediaQuery::Required));
                    } else if (mediaType == "video") {
                        query.addCondition(mediaVocabulary.hasTypeAnyVideo(MediaQuery::Required));
                    }
                    query.addLRIFilterConditions(engineFilterList, mediaVocabulary);
                    if (m_mediaListProperties.filterForField("playCount").isEmpty()) {
                        query.addCondition(mediaVocabulary.hasPlayCount(MediaQuery::Required, 0, MediaQuery::GreaterThan));
                        ignoreZeros = true;
                    }
                    query.addCondition(mediaVocabulary.hasLastPlayed(MediaQuery::Optional));
                    query.endWhere();
                    QStringList orderByBindings;
                    QList<MediaQuery::Order> order;
                    orderByBindings.append(mediaVocabulary.playCountBinding());
                    order.append(MediaQuery::Descending);
                    orderByBindings.append(mediaVocabulary.lastPlayedBinding());
                    order.append(MediaQuery::Descending);
                    query.orderBy(orderByBindings, order);
                } else {
                    QStringList bindings;
//.........这里部分代码省略.........
开发者ID:netrunner-debian-kde-extras，项目名称:bangarang，代码行数:101，代码来源:semanticslistengine.cpp


注：本文中的MediaQuery::select方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。