rosegardenguiview.cpp

LINUX下的混音软件

        return ;
    }

    slotEditSegmentsEventList(segmentsToEdit);
}

void RosegardenGUIView::slotEditSegmentsEventList(std::vector<Segment *> segmentsToEdit)
{
    int count = 0;
    for (std::vector<Segment *>::iterator i = segmentsToEdit.begin();
            i != segmentsToEdit.end(); ++i) {
        std::vector<Segment *> tmpvec;
        tmpvec.push_back(*i);
        EventView *view = createEventView(tmpvec);
        if (view) {
            view->show();
            if (++count == maxEditorsToOpen)
                break;
        }
    }
}

void RosegardenGUIView::slotEditTriggerSegment(int id)
{
    SetWaitCursor waitCursor;

    std::vector<Segment *> segmentsToEdit;

    Segment *s = getDocument()->getComposition().getTriggerSegment(id);

    if (s) {
        segmentsToEdit.push_back(s);
    } else {
        return ;
    }

    slotEditSegmentsEventList(segmentsToEdit);
}

void RosegardenGUIView::slotSegmentAutoSplit(Segment *segment)
{
    AudioSplitDialog aSD(this, segment, getDocument());

    if (aSD.exec() == QDialog::Accepted) {
        KCommand *command =
            new AudioSegmentAutoSplitCommand(getDocument(),
                                             segment, aSD.getThreshold());
        slotAddCommandToHistory(command);
    }
}

void RosegardenGUIView::slotEditSegmentAudio(Segment *segment)
{
    std::cout << "RosegardenGUIView::slotEditSegmentAudio() - "
    << "starting external audio editor" << std::endl;

    KConfig* config = kapp->config();
    config->setGroup(GeneralOptionsConfigGroup);

    QString application = config->readEntry("externalaudioeditor", "");

    if (application == "") {
        application = AudioConfigurationPage::getBestAvailableAudioEditor();
    }

    QStringList splitCommand = QStringList::split(" ", application);

    if (splitCommand.size() == 0) {

        std::cerr << "RosegardenGUIView::slotEditSegmentAudio() - "
        << "external editor \"" << application.data()
        << "\" not found" << std::endl;

        KMessageBox::sorry(this,
                           i18n("You've not yet defined an audio editor for Rosegarden to use.\nSee Settings -> Configure Rosegarden -> Audio."));

        return ;
    }

    QFileInfo *appInfo = new QFileInfo(splitCommand[0]);
    if (appInfo->exists() == false || appInfo->isExecutable() == false) {
        std::cerr << "RosegardenGUIView::slotEditSegmentAudio() - "
                  << "can't execute \"" << splitCommand[0] << "\""
                  << std::endl;
        return;
    }

    AudioFile *aF = getDocument()->getAudioFileManager().
                    getAudioFile(segment->getAudioFileId());
    if (aF == 0) {
        std::cerr << "RosegardenGUIView::slotEditSegmentAudio() - "
        << "can't find audio file" << std::endl;
        return ;
    }

    // wait cursor
    QApplication::setOverrideCursor(QCursor(Qt::waitCursor));

    // Prepare the process
    //
    KProcess *process = new KProcess();
    (*process) << splitCommand;
    (*process) << QString(aF->getFilename().c_str());

    // Start it
    //
    if (!process->start()) {
        std::cerr << "RosegardenGUIView::slotEditSegmentAudio() - "
        << "can't start external editor" << std::endl;
    }

    // restore cursor
    QApplication::restoreOverrideCursor();

}

void RosegardenGUIView::setZoomSize(double size)
{
    m_rulerScale->setUnitsPerPixel(size);

    double duration44 = TimeSignature(4, 4).getBarDuration();

    double xScale = duration44 / (size * barWidth44);
    RG_DEBUG << "RosegardenGUIView::setZoomSize - xScale =  " << xScale << endl;

    m_trackEditor->slotSetPointerPosition
    (getDocument()->getComposition().getPosition());

    m_trackEditor->getSegmentCanvas()->clearSegmentRectsCache(true);
    m_trackEditor->getSegmentCanvas()->slotUpdateSize();
    m_trackEditor->getSegmentCanvas()->slotUpdateSegmentsDrawBuffer();

    if (m_trackEditor->getTempoRuler()) {
        m_trackEditor->getTempoRuler()->repaint();
    }

    if (m_trackEditor->getChordNameRuler()) {
        m_trackEditor->getChordNameRuler()->repaint();
    }

    if (m_trackEditor->getTopStandardRuler()) {
        m_trackEditor->getTopStandardRuler()->repaint();
    }

    if (m_trackEditor->getBottomStandardRuler()) {
        m_trackEditor->getBottomStandardRuler()->repaint();
    }
}

void RosegardenGUIView::slotSelectTrackSegments(int trackId)
{
    // update the instrument parameter box
    Composition &comp = getDocument()->getComposition();
    Track *track = comp.getTrackById(trackId);

    if (track == 0)
        return ;

    // Show the selection on the track buttons.  Find the position.
    //
    m_trackEditor->getTrackButtons()->selectLabel(track->getPosition());
    m_trackEditor->slotScrollToTrack(track->getPosition());

    SegmentSelection segments;

    for (Composition::iterator i =
                getDocument()->getComposition().begin();
            i != getDocument()->getComposition().end(); i++) {
        if (((int)(*i)->getTrack()) == trackId)
            segments.insert(*i);
    }

    // Store the selected Track in the Composition
    //
    comp.setSelectedTrack(trackId);

    m_trackParameterBox->slotSelectedTrackChanged();

    slotUpdateInstrumentParameterBox(comp.getTrackById(trackId)->
                                     getInstrument());


    slotPropagateSegmentSelection(segments);

    // inform
    emit segmentsSelected(segments);
    emit compositionStateUpdate();
}

void RosegardenGUIView::slotPropagateSegmentSelection(const SegmentSelection &segments)
{
    // Send this signal to the GUI to activate the correct tool
    // on the toolbar so that we have a SegmentSelector object
    // to write the Segments into
    //
    if (!segments.empty()) {
        emit activateTool(SegmentSelector::ToolName);
    }

    // Send the segment list even if it's empty as we
    // use that to clear any current selection
    //
    m_trackEditor->getSegmentCanvas()->slotSelectSegments(segments);

    // update the segment parameter box
    m_segmentParameterBox->useSegments(segments);

    if (!segments.empty()) {
        emit stateChange("have_selection", true);
        if (!segments.hasNonAudioSegment()) {
            emit stateChange("audio_segment_selected", true);
        }
    } else {
        emit stateChange("have_selection", false);
    }
}

void RosegardenGUIView::slotSelectAllSegments()
{
    SegmentSelection segments;

    InstrumentId instrument = 0;
    bool haveInstrument = false;
    bool multipleInstruments = false;

    Composition &comp = getDocument()->getComposition();

    for (Composition::iterator i = comp.begin(); i != comp.end(); ++i) {

        InstrumentId myInstrument =
            comp.getTrackById((*i)->getTrack())->getInstrument();

        if (haveInstrument) {
            if (myInstrument != instrument) {
                multipleInstruments = true;
            }
        } else {
            instrument = myInstrument;
            haveInstrument = true;
        }

        segments.insert(*i);
    }

    // Send this signal to the GUI to activate the correct tool
    // on the toolbar so that we have a SegmentSelector object
    // to write the Segments into
    //
    if (!segments.empty()) {
        emit activateTool(SegmentSelector::ToolName);
    }

    // Send the segment list even if it's empty as we
    // use that to clear any current selection
    //
    m_trackEditor->getSegmentCanvas()->slotSelectSegments(segments);

    // update the segment parameter box
    m_segmentParameterBox->useSegments(segments);

    // update the instrument parameter box
    if (haveInstrument && !multipleInstruments) {
        slotUpdateInstrumentParameterBox(instrument);
    } else {
        m_instrumentParameterBox->useInstrument(0);
    }

    //!!! similarly, how to set no selected track?
    //comp.setSelectedTrack(trackId);

    if (!segments.empty()) {
        emit stateChange("have_selection", true);
        if (!segments.hasNonAudioSegment()) {
            emit stateChange("audio_segment_selected", true);
        }
    } else {
        emit stateChange("have_selection", false);
    }

    // inform
    //!!! inform what? is this signal actually used?
    emit segmentsSelected(segments);
}

void RosegardenGUIView::slotUpdateInstrumentParameterBox(int id)
{
    Studio &studio = getDocument()->getStudio();
    Instrument *instrument = studio.getInstrumentById(id);
    Composition &comp = getDocument()->getComposition();

    Track *track = comp.getTrackById(comp.getSelectedTrack());

    // Reset the instrument
    //
    m_instrumentParameterBox->useInstrument(instrument);

    // Then do this instrument/track fiddling
    //
    /*
        if (track && instrument &&
                instrument->getType() == Instrument::Audio)
        {
            // Set the mute status
            m_instrumentParameterBox->setMute(track->isMuted());
     
            // Set the record track
            m_instrumentParameterBox->setRecord(
                        track->getId() == comp.getRecordTrack());
     
            // Set solo
            m_instrumentParameterBox->setSolo(
                    comp.isSolo() && (track->getId() == comp.getSelectedTrack()));
        }
    */
    emit checkTrackAssignments();
}

void RosegardenGUIView::showVisuals(const MappedEvent *mE)
{
    double valueLeft = ((double)mE->getData1()) / 127.0;
    double valueRight = ((double)mE->getData2()) / 127.0;

    if (mE->getType() == MappedEvent::AudioLevel) {

        // Send to the high sensitivity instrument parameter box
        // (if any)
        //
        if (m_instrumentParameterBox->getSelectedInstrument() &&
                mE->getInstrument() ==
                m_instrumentParameterBox->getSelectedInstrument()->getId()) {
            float dBleft = AudioLevel::fader_to_dB
                           (mE->getData1(), 127, AudioLevel::LongFader);
            float dBright = AudioLevel::fader_to_dB
                            (mE->getData2(), 127, AudioLevel::LongFader);

            m_instrumentParameterBox->setAudioMeter(dBleft, dBright,
                                                    AudioLevel::DB_FLOOR,
                                                    AudioLevel::DB_FLOOR);
        }

        // Don't always send all audio levels so we don't
        // get vu meter flickering on track meters
        //
        if (valueLeft < 0.05 && valueRight < 0.05)
            return ;

    } else if (mE->getType() != MappedEvent::MidiNote)
        return ;

    m_trackEditor->getTrackButtons()->
    slotSetMetersByInstrument((valueLeft + valueRight) / 2,
                              mE->getInstrument());

}

void
RosegardenGUIView::updateMeters(SequencerMapper *mapper)
{
    const int unknownState = 0, oldState = 1, newState = 2;

    typedef std::map<InstrumentId, int> StateMap;
    static StateMap states;
    static StateMap recStates;

    typedef std::map<InstrumentId, LevelInfo> LevelMap;
    static LevelMap levels;
    static LevelMap recLevels;

    for (StateMap::iterator i = states.begin(); i != states.end(); ++i) {
        i->second = unknownState;
    }
    for (StateMap::iterator i = recStates.begin(); i != recStates.end(); ++i) {
        i->second = unknownState;
    }

    for (Composition::trackcontainer::iterator i =
                getDocument()->getComposition().getTracks().begin();
            i != getDocument()->getComposition().getTracks().end(); ++i) {

        Track *track = i->second;
        if (!track)
            continue;

        InstrumentId instrumentId = track->getInstrument();

        if (states[instrumentId] == unknownState) {
            bool isNew = mapper->getInstrumentLevel(instrumentId,
                                                    levels[instrumentId]);