C++ EventSelection::getSegment方法代码示例

CollapseRestsCommand::CollapseRestsCommand
(EventSelection &selection) :
        BasicCommand(getGlobalName(),
                     selection.getSegment(),
                     selection.getStartTime(),
                     selection.getEndTime())
{
    // nothing else
}

CutAndCloseCommand::CutAndCloseCommand(EventSelection &selection,
                                       Clipboard *clipboard) :
        MacroCommand(getGlobalName())
{
    addCommand(new CutCommand(selection, clipboard));
    addCommand(new CloseCommand(&selection.getSegment(),
                                selection.getEndTime(),
                                selection.getStartTime()));
}

BasicSelectionCommand::BasicSelectionCommand(const QString &name,
        EventSelection &selection,
        bool bruteForceRedo) :
    BasicCommand(name,
                 selection.getSegment(),
                 selection.getStartTime(),
                 selection.getEndTime(),
                 bruteForceRedo)
{
    // nothing
}

CopyCommand::CopyCommand(EventSelection &selection,
                         Clipboard *clipboard) :
        NamedCommand(getGlobalName()),
        m_targetClipboard(clipboard)
{
    m_sourceClipboard = new Clipboard;
    m_savedClipboard = 0;
    std::string label = selection.getSegment().getLabel();
    m_sourceClipboard->newSegment(&selection)->setLabel(
            appendLabel(label, qstrtostr(tr("(excerpt)"))));
}

EventUnquantizeCommand::EventUnquantizeCommand(
    EventSelection &selection,
    Quantizer *quantizer) :
        BasicCommand(tr("Unquantize Events"),
                     selection.getSegment(),
                     selection.getStartTime(),
                     selection.getEndTime(),
                     true),  // bruteForceRedo
        m_quantizer(quantizer),
        m_selection(&selection)
{
    // nothing else
}

AddIndicationCommand::AddIndicationCommand(std::string indicationType,
                                           EventSelection &selection) :
    BasicCommand(getGlobalName(indicationType),
                 selection.getSegment(),
                 std::min(selection.getStartTime(), selection.getNotationStartTime()),
                 std::max(selection.getEndTime(), selection.getNotationEndTime())),
    m_indicationType(indicationType),
    m_indicationStart(selection.getNotationStartTime()),
    m_indicationDuration(selection.getTotalNotationDuration()),
    m_lastInsertedEvent(0)
{
    if (!canExecute()) {
        throw CommandFailed
            //!!! need to use text from trunk/src/gui/editors/notation/NotationView.cpp (but this requires an informal human-readable version of the indication name)
            (qstrtostr(tr("Can't add identical overlapping indications")));
    }
}

void
MatrixSelector::setViewCurrentSelection(bool always)
{
    if (always) m_previousCollisions.clear();

    EventSelection* selection = 0;
    bool changed = getSelection(selection);
    if (!changed) {
        delete selection;
        return;
    }

    if (m_selectionToMerge && selection &&
        m_selectionToMerge->getSegment() == selection->getSegment()) {
        
        selection->addFromSelection(m_selectionToMerge);
        m_scene->setSelection(selection, true);

    } else if (!m_selectionToMerge) {

        m_scene->setSelection(selection, true);
    }
}

void
MatrixMover::handleMouseRelease(const MatrixMouseEvent *e)
{
    if (!e) return;

    MATRIX_DEBUG << "MatrixMover::handleMouseRelease() - newPitch = "
                 << e->pitch << endl;

    if (!m_currentElement || !m_currentViewSegment) return;

    timeT newTime = m_currentElement->getViewAbsoluteTime() +
        (e->snappedLeftTime - m_clickSnappedLeftTime);
    int newPitch = e->pitch;

    if (newPitch > 127) newPitch = 127;
    if (newPitch < 0) newPitch = 0;

    // get a basic pitch difference calculation comparing the current element's
    // pitch to the pitch the mouse was released at (see note in
    // handleMouseMove)
    using BaseProperties::PITCH;
    timeT diffTime = newTime - m_currentElement->getViewAbsoluteTime();
    int diffPitch = 0;
    if (m_currentElement->event()->has(PITCH)) {
        diffPitch = newPitch - m_currentElement->event()->get<Int>(PITCH);
    }

    EventSelection* selection = m_scene->getSelection();

    // factor in transpose to adjust the height calculation
    long pitchOffset = selection->getSegment().getTranspose();
    diffPitch += (pitchOffset * -1);

    if ((diffTime == 0 && diffPitch == 0) || selection->getAddedEvents() == 0) {
        for (size_t i = 0; i < m_duplicateElements.size(); ++i) {
            delete m_duplicateElements[i]->event();
            delete m_duplicateElements[i];
        }
        m_duplicateElements.clear();
        m_currentElement = 0;
        return;
    }

    if (newPitch != m_lastPlayedPitch) {
        long velocity = m_widget->getCurrentVelocity();
        m_currentElement->event()->get<Int>(BaseProperties::VELOCITY, velocity);
        m_scene->playNote(m_currentViewSegment->getSegment(), newPitch + (pitchOffset * -1), velocity);
        m_lastPlayedPitch = newPitch;
    }

    QString commandLabel;
    if (m_quickCopy) {
        if (selection->getAddedEvents() < 2) {
            commandLabel = tr("Copy and Move Event");
        } else {
            commandLabel = tr("Copy and Move Events");
        }
    } else {
        if (selection->getAddedEvents() < 2) {
            commandLabel = tr("Move Event");
        } else {
            commandLabel = tr("Move Events");
        }
    }

    MacroCommand *macro = new MacroCommand(commandLabel);

    EventSelection::eventcontainer::iterator it =
        selection->getSegmentEvents().begin();

    Segment &segment = m_currentViewSegment->getSegment();

    EventSelection *newSelection = new EventSelection(segment);

    timeT normalizeStart = selection->getStartTime();
    timeT normalizeEnd = selection->getEndTime();

    if (m_quickCopy) {
        for (size_t i = 0; i < m_duplicateElements.size(); ++i) {
            timeT time = m_duplicateElements[i]->getViewAbsoluteTime();
            timeT endTime = time + m_duplicateElements[i]->getViewDuration();
            if (time < normalizeStart) normalizeStart = time;
            if (endTime > normalizeEnd) normalizeEnd = endTime;
            macro->addCommand(new MatrixInsertionCommand
                              (segment, time, endTime, 
                               m_duplicateElements[i]->event()));
            delete m_duplicateElements[i]->event();
            delete m_duplicateElements[i];
        }
        m_duplicateElements.clear();
        m_quickCopy = false;
    }
        
    for (; it != selection->getSegmentEvents().end(); ++it) {

        timeT newTime = (*it)->getAbsoluteTime() + diffTime;

        int newPitch = 60;
        if ((*it)->has(PITCH)) {
            newPitch = (*it)->get<Int>(PITCH) + diffPitch;
//.........这里部分代码省略.........

MatrixTool::FollowMode
MatrixMover::handleMouseMove(const MatrixMouseEvent *e)
{
    if (!e) return NoFollow;

    MATRIX_DEBUG << "MatrixMover::handleMouseMove() snapped time = "
                 << e->snappedLeftTime << endl;

    setBasicContextHelp(e->modifiers & Qt::ControlModifier);

    if (!m_currentElement || !m_currentViewSegment) return NoFollow;

    if (getSnapGrid()->getSnapSetting() != SnapGrid::NoSnap) {
        setContextHelp(tr("Hold Shift to avoid snapping to beat grid"));
    } else {
        clearContextHelp();
    }

    timeT newTime = m_currentElement->getViewAbsoluteTime() +
        (e->snappedLeftTime - m_clickSnappedLeftTime);
    int newPitch = e->pitch;

    emit hoveredOverNoteChanged(newPitch, true, newTime);

    // get a basic pitch difference calculation comparing the current element's
    // pitch to the clicked pitch (this does not take the transpose factor into
    // account, so in a -9 segment, the initial result winds up being 9
    // semitones too low)
    using BaseProperties::PITCH;
    int diffPitch = 0;
    if (m_currentElement->event()->has(PITCH)) {
        diffPitch = newPitch - m_currentElement->event()->get<Int>(PITCH);
    }
    
    EventSelection* selection = m_scene->getSelection();

    // factor in transpose to adjust the height calculation
    long pitchOffset = selection->getSegment().getTranspose();
    diffPitch += (pitchOffset * -1);

    for (EventSelection::eventcontainer::iterator it =
             selection->getSegmentEvents().begin();
         it != selection->getSegmentEvents().end(); ++it) {

        MatrixElement *element = 0;
        ViewElementList::iterator vi = m_currentViewSegment->findEvent(*it);
        if (vi != m_currentViewSegment->getViewElementList()->end()) {
            element = static_cast<MatrixElement *>(*vi);
        }
        if (!element) continue;

        timeT diffTime = element->getViewAbsoluteTime() -
            m_currentElement->getViewAbsoluteTime();

        int epitch = 0;
        if (element->event()->has(PITCH)) {
            epitch = element->event()->get<Int>(PITCH);
        }

        element->reconfigure(newTime + diffTime,
                             element->getViewDuration(),
                             epitch + diffPitch);
                             
        element->setSelected(true);
            
    }

    if (newPitch != m_lastPlayedPitch) {
        long velocity = m_widget->getCurrentVelocity();
        m_currentElement->event()->get<Int>(BaseProperties::VELOCITY, velocity);
        m_scene->playNote(m_currentViewSegment->getSegment(), newPitch + (pitchOffset * -1), velocity);
        m_lastPlayedPitch = newPitch;
    }

    return FollowMode(FollowHorizontal | FollowVertical);
}