C++ MusicMetadata::toMap方法代码示例

bool TrackInfoPopup::Create(void)
{
    bool err = false;

    err = LoadWindowFromXML("music-ui.xml", "trackinfo_popup", this);

    if (!err)
        return false;

    // get map for current track
    MetadataMap metadataMap; 
    m_metadata->toMap(metadataMap); 

    // add the map from the next track
    MusicMetadata *nextMetadata = gPlayer->getNextMetadata();
    if (nextMetadata)
        nextMetadata->toMap(metadataMap, "next");

    SetTextFromMap(metadataMap);

    MythUIStateType *ratingState = dynamic_cast<MythUIStateType *>(GetChild("ratingstate"));
    if (ratingState)
        ratingState->DisplayState(QString("%1").arg(m_metadata->Rating()));

    MythUIImage *albumImage = dynamic_cast<MythUIImage *>(GetChild("coverart"));
    if (albumImage)
    {
        if (!m_metadata->getAlbumArtFile().isEmpty())
        {
            albumImage->SetFilename(m_metadata->getAlbumArtFile());
            albumImage->Load();
        }
    }

    m_displayTimer = new QTimer(this);
    connect(m_displayTimer, SIGNAL(timeout()), this, SLOT(Close()));
    m_displayTimer->setSingleShot(true);
    m_displayTimer->start(MUSICINFOPOPUPTIME);

    return true;
}

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);
            MusicMetadata *mdata = qVariantValue<MusicMetadata*> (item->GetData());
            if (mdata && (mdata->ID() == (MusicMetadata::IdType) trackID || trackID == -1))
            {
                if (gPlayer->getCurrentPlaylist() && gPlayer->getCurrentPlaylist()->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);
            MusicMetadata *mdata = qVariantValue<MusicMetadata*> (item->GetData());
            if (mdata && mdata->ID() == trackID)
            {
                InfoMap metadataMap;
                mdata->toMap(metadataMap);
                item->SetTextFromMap(metadataMap);
            }
        }

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

        // 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();

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

            if (gPlayer->getCurrentPlaylist() && gPlayer->getCurrentPlaylist()->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()));
}