noteinserter.cpp

LINUX下的混音软件

                    }
                }
            }
            if (i == segment.begin()) break;
            --i;
        }
    }

    bool changed = false;

    if (m_clickHappened) {
        if (time != m_clickTime ||
            pitch != m_clickPitch ||
            height != m_clickHeight ||
            staffNo != m_clickStaffNo) {
            changed = true;
        }
    } else {
        m_clickHappened = true;
        changed = true;
    }

    if (changed) {
        m_clickTime = time;
        m_clickPitch = pitch;
        m_clickHeight = height;
        m_clickStaffNo = staffNo;

        showPreview();
    }

    return true;
}

void NoteInserter::showPreview()
{
    Segment &segment = m_nParentView->getStaff(m_clickStaffNo)->getSegment();

    int pitch = m_clickPitch;
    pitch += getOttavaShift(segment, m_clickTime) * 12;

    m_nParentView->showPreviewNote(m_clickStaffNo, m_clickInsertX,
                                   pitch, m_clickHeight,
                                   Note(m_noteType, m_noteDots));
}

void NoteInserter::clearPreview()
{
    m_nParentView->clearPreviewNote();
}

timeT
NoteInserter::getOffsetWithinRest(int staffNo,
                                  const NotationElementList::iterator &i,
                                  double &canvasX) // will be snapped
{
    //!!! To make this work correctly in tuplet mode, our divisor would
    // have to be the tupletified duration of the tuplet unit -- we can
    // do that, we just haven't yet
    if (m_nParentView->isInTripletMode())
        return 0;

    Staff *staff = m_nParentView->getStaff(staffNo);
    NotationElement* el = static_cast<NotationElement*>(*i);
    if (!el->getCanvasItem())
        return 0;
    double offset = canvasX - el->getCanvasX();

    if (offset < 0)
        return 0;

    double airX, airWidth;
    el->getLayoutAirspace(airX, airWidth);
    double origin = ((*i)->getLayoutX() - airX) / 2;
    double width = airWidth - origin;

    timeT duration = (*i)->getViewDuration();

    TimeSignature timeSig =
        staff->getSegment().getComposition()->getTimeSignatureAt
        ((*i)->event()->getAbsoluteTime());
    timeT unit = timeSig.getUnitDuration();

    int unitCount = duration / unit;
    if (unitCount > 1) {

        timeT result = (int)((offset / width) * unitCount);
        if (result > unitCount - 1)
            result = unitCount - 1;

        double visibleWidth(airWidth);
        NotationElementList::iterator j(i);
        if (++j != staff->getViewElementList()->end()) {
            visibleWidth = (*j)->getLayoutX() - (*i)->getLayoutX();
        }
        offset = (visibleWidth * result) / unitCount;
        canvasX = el->getCanvasX() + offset;

        result *= unit;
        return result;
    }

    return 0;
}

int
NoteInserter::getOttavaShift(Segment &segment, timeT time)
{
    // Find out whether we're in an ottava section.

    int ottavaShift = 0;

    for (Segment::iterator i = segment.findTime(time); ; --i) {

        if (!segment.isBeforeEndMarker(i))
            break;

        if ((*i)->isa(Note::EventType) &&
                (*i)->has(NotationProperties::OTTAVA_SHIFT)) {
            ottavaShift = (*i)->get
                          <Int>(NotationProperties::OTTAVA_SHIFT);
            break;
        }

        if ((*i)->isa(Indication::EventType)) {
            try {
                Indication ind(**i);
                if (ind.isOttavaType()) {
                    ottavaShift = ind.getOttavaShift();
                    break;
                }
            } catch (...) { }
        }

        if (i == segment.begin())
            break;
    }

    return ottavaShift;
}

Event *
NoteInserter::doAddCommand(Segment &segment, timeT time, timeT endTime,
                           const Note &note, int pitch, Accidental accidental)
{
    timeT noteEnd = time + note.getDuration();

    // #1046934: make it possible to insert triplet at end of segment!
    if (m_nParentView->isInTripletMode()) {
        noteEnd = time + (note.getDuration() * 2 / 3);
    }

    if (time < segment.getStartTime() ||
            endTime > segment.getEndMarkerTime() ||
            noteEnd > segment.getEndMarkerTime()) {
        return 0;
    }

    pitch += getOttavaShift(segment, time) * 12;

    NoteInsertionCommand *insertionCommand =
        new NoteInsertionCommand
        (segment, time, endTime, note, pitch, accidental,
         m_autoBeam && !m_nParentView->isInTripletMode(),
         m_matrixInsertType,
         m_defaultStyle);

    KCommand *activeCommand = insertionCommand;

    if (m_nParentView->isInTripletMode()) {
        Segment::iterator i(segment.findTime(time));
        if (i != segment.end() &&
            !(*i)->has(BaseProperties::BEAMED_GROUP_TUPLET_BASE)) {

            KMacroCommand *command = new KMacroCommand(insertionCommand->name());

            //## Attempted fix to bug reported on rg-user by SlowPic
            //## <[e-mail]> 28/02/2005 22:32:56 UTC: Triplet input error
            //# HJJ: Comment out this attempt. It breaks the splitting of
            //#      the first bars into rests.
            //## if ((*i)->isa(Note::EventRestType) &&
            //## (*i)->getNotationDuration() > (note.getDuration() * 3)) {
            // split the rest
            command->addCommand(new RestInsertionCommand
                                (segment, time,
                                 time + note.getDuration() * 2,
                                 Note::getNearestNote(note.getDuration() * 2)));
            //## }
            //# These comments should probably be deleted.

            command->addCommand(new TupletCommand
                                (segment, time, note.getDuration(),
                                 3, 2, true)); // #1046934: "has timing already"
            command->addCommand(insertionCommand);
            activeCommand = command;
        }
    }

    m_nParentView->addCommandToHistory(activeCommand);

    NOTATION_DEBUG << "NoteInserter::doAddCommand: accidental is "
    << accidental << endl;

    return insertionCommand->getLastInsertedEvent();
}

void NoteInserter::slotSetNote(Note::Type nt)
{
    m_noteType = nt;
}

void NoteInserter::slotSetDots(unsigned int dots)
{
    m_noteDots = dots;

    KToggleAction *dotsAction = dynamic_cast<KToggleAction *>
                                (actionCollection()->action("toggle_dot"));
    if (dotsAction)
        dotsAction->setChecked(dots > 0);
}

void NoteInserter::slotSetAccidental(Accidental accidental,
                                     bool follow)
{
    NOTATION_DEBUG << "NoteInserter::setAccidental: accidental is "
    << accidental << endl;
    m_accidental = accidental;
    m_followAccidental = follow;
}

void NoteInserter::slotNoAccidental()
{
    m_parentView->actionCollection()->action("no_accidental")->activate();
}

void NoteInserter::slotFollowAccidental()
{
    m_parentView->actionCollection()->action("follow_accidental")->activate();
}

void NoteInserter::slotSharp()
{
    m_parentView->actionCollection()->action("sharp_accidental")->activate();
}

void NoteInserter::slotFlat()
{
    m_parentView->actionCollection()->action("flat_accidental")->activate();
}

void NoteInserter::slotNatural()
{
    m_parentView->actionCollection()->action("natural_accidental")->activate();
}

void NoteInserter::slotDoubleSharp()
{
    m_parentView->actionCollection()->action("double_sharp_accidental")->activate();
}

void NoteInserter::slotDoubleFlat()
{
    m_parentView->actionCollection()->action("double_flat_accidental")->activate();
}

void NoteInserter::slotToggleDot()
{
    m_noteDots = (m_noteDots) ? 0 : 1;
    Note note(m_noteType, m_noteDots);
    QString actionName(NotationStrings::getReferenceName(note));
    actionName.replace(QRegExp("-"), "_");
    KAction *action = m_parentView->actionCollection()->action(actionName);
    if (!action) {
        std::cerr << "WARNING: No such action as " << actionName << std::endl;
    } else {
        action->activate();
    }
}

void NoteInserter::slotToggleAutoBeam()
{
    m_autoBeam = !m_autoBeam;
}

void NoteInserter::slotEraseSelected()
{
    m_parentView->actionCollection()->action("erase")->activate();
}

void NoteInserter::slotSelectSelected()
{
    m_parentView->actionCollection()->action("select")->activate();
}

void NoteInserter::slotRestsSelected()
{
    Note note(m_noteType, m_noteDots);
    QString actionName(NotationStrings::getReferenceName(note, true));
    actionName.replace(QRegExp("-"), "_");
    KAction *action = m_parentView->actionCollection()->action(actionName);
    if (!action) {
        std::cerr << "WARNING: No such action as " << actionName << std::endl;
    } else {
        action->activate();
    }
}

const char* NoteInserter::m_actionsAccidental[][4] =
{
    { "No accidental",  "1slotNoAccidental()",  "no_accidental",
      "accidental-none" },
    { "Follow accidental",  "1slotFollowAccidental()",  "follow_accidental",
      "accidental-follow" },
    { "Sharp",          "1slotSharp()",         "sharp_accidental",
      "accidental-sharp" },
    { "Flat",           "1slotFlat()",          "flat_accidental",
      "accidental-flat" },
    { "Natural",        "1slotNatural()",       "natural_accidental",
      "accidental-natural" },
    { "Double sharp",   "1slotDoubleSharp()",   "double_sharp_accidental",
      "accidental-doublesharp" },
    { "Double flat",    "1slotDoubleFlat()",    "double_flat_accidental",
      "accidental-doubleflat" }
};

const QString NoteInserter::ToolName     = "noteinserter";

}
#include "NoteInserter.moc"