C++ Metadata::ID方法代码示例

void  StreamView::streamItemVisible(MythUIButtonListItem *item)
{
    if (!item)
        return;

    if (!item->GetText("imageloaded").isEmpty())
        return;

    Metadata *mdata = qVariantValue<Metadata*> (item->GetData());
    if (mdata)
    {
        if (!mdata->LogoUrl().isEmpty())
        {
            QString artFile = findIcon("stream", QString("%1").arg(mdata->ID()));
            if (artFile.isEmpty())
            {
                // download image and cache it for later
                QUrl url(mdata->LogoUrl());
                QFileInfo fi(url.path());
                QString saveFilename = GetConfDir() + QString("/MythMusic/Icons/%1/%2.%3")
                        .arg("stream").arg(mdata->ID()).arg(fi.suffix());
                GetMythDownloadManager()->queueDownload(mdata->LogoUrl(), saveFilename, this);
            }
            else
            {
                item->SetImage(artFile);
            }
        }
        else
            item->SetImage("");
    }

    item->SetText(" ", "imageloaded");
}

void SearchView::trackClicked(MythUIButtonListItem *item)
{
    Metadata *mdata = qVariantValue<Metadata*> (item->GetData());
    if (mdata)
    {
        if (gPlayer->getPlaylist()->checkTrack(mdata->ID()))
            gPlayer->getPlaylist()->removeTrack(mdata->ID());
        else
            gPlayer->getPlaylist()->addTrack(mdata->ID(), true);
    }
}

void StreamView::updateStream(Metadata *mdata)
{
    // sanity check this is a radio stream
    int repo = ID_TO_REPO(mdata->ID());
    if (repo != RT_Radio)
    {
        LOG(VB_GENERAL, LOG_ERR, "StreamView asked to update a stream but it isn't a radio stream!");
        return;
    }

    gMusicData->all_streams->updateStream(mdata);

    // force the icon to reload incase it changed
    QFile::remove(mdata->getAlbumArtFile());
    mdata->reloadAlbumArtImages();

    updateStreamList();

    // find the stream and make it the active item
    for (int x = 0; x < m_streamList->GetCount(); x++)
    {
        MythUIButtonListItem *item = m_streamList->GetItemAt(x);
        Metadata *itemsdata = qVariantValue<Metadata*> (item->GetData());
        if (itemsdata)
        {
            if (mdata->ID() == itemsdata->ID())
            {
                m_streamList->SetItemCurrent(item);
                break;
            }
        }
    }
}

void StreamView::addStream(Metadata *mdata)
{
    // sanity check this is a radio stream
    int repo = ID_TO_REPO(mdata->ID());
    if (repo != RT_Radio)
    {
        LOG(VB_GENERAL, LOG_ERR, "StreamView asked to add a stream but it isn't a radio stream!");
        return;
    }

    gMusicData->all_streams->addStream(mdata);

    updateStreamList();

    // find the new stream and make it the active item
    for (int x = 0; x < m_streamList->GetCount(); x++)
    {
        MythUIButtonListItem *item = m_streamList->GetItemAt(x);
        Metadata *itemsdata = qVariantValue<Metadata*> (item->GetData());
        if (itemsdata)
        {
            if (mdata->ID() == itemsdata->ID())
            {
                m_streamList->SetItemCurrent(item);
                break;
            }
        }
    }
}

void AllMusic::addCDTrack(const Metadata &the_track)
{
    Metadata *mdata = new Metadata(the_track);
    mdata->setID(m_cdData.count() + 1);
    mdata->setRepo(RT_CD);
    m_cdData.append(mdata);
    music_map[mdata->ID()] = mdata;
}

void StreamView::updateStreamList(void)
{
    m_streamList->Reset();

    bool foundActiveStream = false;

    for (int x = 0; x < gPlayer->getPlaylist()->getSongs().count(); x++)
    {
        Metadata *mdata = gPlayer->getPlaylist()->getSongs().at(x);
        MythUIButtonListItem *item = new MythUIButtonListItem(m_streamList, "", qVariantFromValue(mdata));
        MetadataMap metadataMap;
        if (mdata)
            mdata->toMap(metadataMap);
        item->SetTextFromMap(metadataMap);
        item->SetText("", "imageloaded");
        item->SetFontState("normal");
        item->DisplayState("default", "playstate");

        // if this is the current radio stream update its play state to match the player
        if (gPlayer->getCurrentMetadata() && mdata->ID() == gPlayer->getCurrentMetadata()->ID())
        {
            if (gPlayer->isPlaying())
            {
                item->SetFontState("running");
                item->DisplayState("playing", "playstate");
            }
            else if (gPlayer->isPaused())
            {
                item->SetFontState("idle");
                item->DisplayState("paused", "playstate");
            }
            else
            {
                item->SetFontState("normal");
                item->DisplayState("stopped", "playstate");
            }

            m_streamList->SetItemCurrent(item);

            foundActiveStream = true;
        }
    }

    if (m_streamList->GetCount() > 0 && !foundActiveStream)
    {
        m_streamList->SetItemCurrent(0);
        gPlayer->stop(true);
    }

    if (m_noStreams)
        m_noStreams->SetVisible((m_streamList->GetCount() == 0));

    if (m_streamList->GetCount() == 0)
        LOG(VB_GENERAL, LOG_ERR, "StreamView hasn't found any streams!");
}

void SearchView::ShowMenu(void)
{
    if (GetFocusWidget() == m_tracksList)
    {
        QString label = tr("Search Actions");

        MythMenu *menu = new MythMenu(label, this, "searchviewmenu");

        MythUIButtonListItem *item = m_tracksList->GetItemCurrent();
        if (item)
        {
            Metadata *mdata = qVariantValue<Metadata*> (item->GetData());
            if (mdata)
            {
                if (gPlayer->getPlaylist()->checkTrack(mdata->ID()))
                    menu->AddItem(tr("Remove From Playlist"));
                else
                {
                    menu->AddItem(tr("Add To Playlist"));
                    menu->AddItem(tr("Add To Playlist And Play"));
                }
            }
        }

        if (GetFocusWidget() == m_tracksList || GetFocusWidget() == m_currentPlaylist)
            menu->AddItem(tr("Search List..."));

        menu->AddItem(tr("More Options"), NULL, createMainMenu());

        MythScreenStack *popupStack = GetMythMainWindow()->GetStack("popup stack");

        MythDialogBox *menuPopup = new MythDialogBox(menu, popupStack, "actionmenu");

        if (menuPopup->Create())
            popupStack->AddScreen(menuPopup);
        else
            delete menu;
    }
    else
        MusicCommon::ShowMenu();
}

void SearchView::customEvent(QEvent *event)
{
    bool handled = false;

    if (event->type() == MusicPlayerEvent::TrackRemovedEvent ||
        event->type() == MusicPlayerEvent::TrackAddedEvent)
    {
        MusicPlayerEvent *mpe = dynamic_cast<MusicPlayerEvent *>(event);

        if (!mpe)
            return;

        int trackID = mpe->TrackID;

        for (int x = 0; x < m_tracksList->GetCount(); x++)
        {
            MythUIButtonListItem *item = m_tracksList->GetItemAt(x);
            Metadata *mdata = qVariantValue<Metadata*> (item->GetData());
            if (mdata && (mdata->ID() == (Metadata::IdType) trackID || trackID == -1))
            {
                if (gPlayer->getPlaylist()->checkTrack(mdata->ID()))
                    item->DisplayState("on", "selectedstate");
                else
                    item->DisplayState("off", "selectedstate");
            }
        }

        // call the default handler in MusicCommon so the playlist and UI is updated
        MusicCommon::customEvent(event);
        handled = true;

        if (m_playTrack)
        {
            m_playTrack = false;

            if (event->type() == MusicPlayerEvent::TrackAddedEvent)
            {
                // make the added track current and play it
                m_currentPlaylist->SetItemCurrent(m_currentPlaylist->GetCount() - 1);
                playlistItemClicked(m_currentPlaylist->GetItemCurrent());
            }
        }
    }
    else if (event->type() == MusicPlayerEvent::AllTracksRemovedEvent)
    {
        for (int x = 0; x < m_tracksList->GetCount(); x++)
        {
            MythUIButtonListItem *item = m_tracksList->GetItemAt(x);
            if (item)
                item->DisplayState("off", "selectedstate");
        }
    }
    else if (event->type() == MusicPlayerEvent::MetadataChangedEvent)
    {
        MusicPlayerEvent *mpe = dynamic_cast<MusicPlayerEvent *>(event);

        if (!mpe)
            return;

        uint trackID = mpe->TrackID;

        for (int x = 0; x < m_tracksList->GetCount(); x++)
        {
            MythUIButtonListItem *item = m_tracksList->GetItemAt(x);
            Metadata *mdata = qVariantValue<Metadata*> (item->GetData());
            if (mdata && mdata->ID() == trackID)
            {
                MetadataMap metadataMap;
                mdata->toMap(metadataMap);
                item->SetTextFromMap(metadataMap);
            }
        }

//        if (trackID == gPlayer->getCurrentMetadata()->ID())
//            updateTrackInfo(gPlayer->getCurrentMetadata());
    }
    else if (event->type() == DialogCompletionEvent::kEventType)
    {
        DialogCompletionEvent *dce = dynamic_cast<DialogCompletionEvent *>(event);

        if (!dce)
            return;

        // make sure the user didn't ESCAPE out of the menu
        if (dce->GetResult() < 0)
            return;

        QString resultid   = dce->GetId();
        QString resulttext = dce->GetResultText();
        if (resultid == "searchviewmenu")
        {
            if (resulttext == tr("Add To Playlist") || resulttext == tr("Remove From Playlist"))
            {
                if (GetFocusWidget() == m_tracksList)
                {
                    MythUIButtonListItem *item = m_tracksList->GetItemCurrent();
                    if (item)
                    {
                        m_playTrack = false;
                        trackClicked(item);
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        query.prepare(sql);
    }
    else
    {
        switch(field)
        {
            case 1: // artist
            {
                sql = "SELECT song_id "
                      "FROM music_songs "
                      "LEFT JOIN music_artists ON "
                      "    music_songs.artist_id=music_artists.artist_id "
                      "WHERE music_artists.artist_name LIKE '%" + searchStr + "%' ";
                query.prepare(sql);
                break;
            }
            case 2: // album
            {
                sql = "SELECT song_id "
                      "FROM music_songs "
                      "LEFT JOIN music_albums ON music_songs.album_id=music_albums.album_id "
                      "WHERE music_albums.album_name LIKE '%" + searchStr + "%' ";
                query.prepare(sql);
                break;
            }
            case 3: // title
            {
                sql = "SELECT song_id "
                      "FROM music_songs "
                      "WHERE music_songs.name LIKE '%" + searchStr + "%' ";
                query.prepare(sql);
                break;
            }
            case 4: // genre
            {
                sql = "SELECT song_id "
                      "FROM music_songs "
                      "LEFT JOIN music_genres ON music_songs.genre_id=music_genres.genre_id "
                      "WHERE music_genres.genre LIKE '%" + searchStr + "%' ";
                query.prepare(sql);
                break;
            }
            case 5: // tags
            {
                //TODO add tag query
            }
            case 0: // all fields
            default:
            {
                sql = "SELECT song_id "
                      "FROM music_songs "
                      "LEFT JOIN music_artists ON "
                      "    music_songs.artist_id=music_artists.artist_id "
                      "LEFT JOIN music_albums ON music_songs.album_id=music_albums.album_id "
                      "LEFT JOIN music_artists AS music_comp_artists ON "
                      "    music_albums.artist_id=music_comp_artists.artist_id "
                      "LEFT JOIN music_genres ON music_songs.genre_id=music_genres.genre_id "
                      "WHERE music_songs.name LIKE '%" + searchStr + "%' "
                      "OR music_artists.artist_name LIKE '%" + searchStr + "%' "
                      "OR music_albums.album_name LIKE '%" + searchStr + "%' "
                      "OR music_genres.genre LIKE '%" + searchStr + "%' ";

                query.prepare(sql);
            }
        }
    }

    if (!query.exec() || !query.isActive())
    {
        MythDB::DBError("Search music database", query);
        return;
    }

    while (query.next())
    {
        int trackid = query.value(0).toInt();

        Metadata *mdata = gMusicData->all_music->getMetadata(trackid);
        if (mdata)
        {
            MythUIButtonListItem *newitem = new MythUIButtonListItem(m_tracksList, "");
            newitem->SetData(qVariantFromValue(mdata));
            MetadataMap metadataMap;
            mdata->toMap(metadataMap);
            newitem->SetTextFromMap(metadataMap);

            if (gPlayer->getPlaylist()->checkTrack(mdata->ID()))
                newitem->DisplayState("on", "selectedstate");
            else
                newitem->DisplayState("off", "selectedstate");

            // TODO rating state etc
        }
    }

    trackVisible(m_tracksList->GetItemCurrent());

    if (m_matchesText)
        m_matchesText->SetText(QString("%1").arg(m_tracksList->GetCount()));
}