C++ TrackPointer::get方法代码示例

void WTrackProperty::slotTrackLoaded(TrackPointer track) {
    if (track) {
        m_pCurrentTrack = track;
        connect(track.get(), SIGNAL(changed(Track*)),
                this, SLOT(updateLabel(Track*)));
        updateLabel(track.get());
    }
}

void WaveformRenderMark::onSetTrack() {
    slotCuesUpdated();

    TrackPointer trackInfo = m_waveformRenderer->getTrackInfo();
    if (!trackInfo) {
        return;
    }
    connect(trackInfo.get(), SIGNAL(cuesUpdated(void)),
                  this, SLOT(slotCuesUpdated(void)));
}

void CueControl::trackLoaded(TrackPointer pNewTrack, TrackPointer pOldTrack) {
    Q_UNUSED(pOldTrack);
    QMutexLocker lock(&m_mutex);

    if (m_pLoadedTrack) {
        disconnect(m_pLoadedTrack.get(), 0, this, 0);
        for (int i = 0; i < m_iNumHotCues; ++i) {
            detachCue(i);
        }

        // Store the cue point in a load cue.
        double cuePoint = m_pCuePoint->get();

        if (cuePoint != -1 && cuePoint != 0.0) {
            CuePointer loadCue;
            const QList<CuePointer> cuePoints(m_pLoadedTrack->getCuePoints());
            QListIterator<CuePointer> it(cuePoints);
            while (it.hasNext()) {
                CuePointer pCue(it.next());
                if (pCue->getType() == Cue::LOAD) {
                    loadCue = pCue;
                    break;
                }
            }
            if (!loadCue) {
                loadCue = m_pLoadedTrack->addCue();
                loadCue->setType(Cue::LOAD);
                loadCue->setLength(0);
            }
            loadCue->setPosition(cuePoint);
        }

        m_pCueIndicator->setBlinkValue(ControlIndicator::OFF);
        m_pCuePoint->set(-1.0);
        m_pLoadedTrack.reset();
    }


    if (!pNewTrack) {
        return;
    }

    m_pLoadedTrack = pNewTrack;
    connect(pNewTrack.get(), SIGNAL(cuesUpdated()),
            this, SLOT(trackCuesUpdated()),
            Qt::DirectConnection);

    CuePointer loadCue;
    const QList<CuePointer> cuePoints(pNewTrack->getCuePoints());
    QListIterator<CuePointer> it(cuePoints);
    while (it.hasNext()) {
        CuePointer pCue(it.next());
        if (pCue->getType() == Cue::LOAD) {
            loadCue = pCue;
        } else if (pCue->getType() != Cue::CUE) {
            continue;
        }
        int hotcue = pCue->getHotCue();
        if (hotcue != -1)
            attachCue(pCue, hotcue);
    }

    double loadCuePoint = 0.0;
    // If cue recall is ON in the prefs, then we're supposed to seek to the cue
    // point on song load. Note that [Controls],cueRecall == 0 corresponds to "ON", not OFF.
    bool cueRecall = (getConfig()->getValueString(
                ConfigKey("[Controls]","CueRecall"), "0").toInt() == 0);
    if (loadCue != NULL) {
        m_pCuePoint->set(loadCue->getPosition());
        if (cueRecall) {
            loadCuePoint = loadCue->getPosition();
        }
    } else {
        // If no cue point is stored, set one at track start
        m_pCuePoint->set(0.0);
    }

    // Need to unlock before emitting any signals to prevent deadlock.
    lock.unlock();
    // If cueRecall is on, seek to it even if we didn't find a cue value (we'll
    // seek to 0.
    if (cueRecall) {
        seekExact(loadCuePoint);
    } else if (!(m_pVinylControlEnabled->get() &&
            m_pVinylControlMode->get() == MIXXX_VCMODE_ABSOLUTE)) {
        // If cuerecall is off, seek to zero unless
        // vinylcontrol is on and set to absolute.  This allows users to
        // load tracks and have the needle-drop be maintained.
        seekExact(0.0);
    }
}