예제 #1
0
파일: artic.cpp 프로젝트: DDMAL/verovio
int Artic::CalcArtic(FunctorParams *functorParams)
{
    FunctorDocParams *params = dynamic_cast<FunctorDocParams *>(functorParams);
    assert(params);

    /************** Get the parent and the stem direction **************/

    LayerElement *parent = NULL;
    Note *parentNote = NULL;
    Chord *parentChord = dynamic_cast<Chord *>(this->GetFirstParent(CHORD, 2));
    data_STEMDIRECTION stemDir = STEMDIRECTION_NONE;
    data_STAFFREL place = STAFFREL_NONE;

    if (!parentChord) {
        parentNote = dynamic_cast<Note *>(this->GetFirstParent(NOTE));
        parent = parentNote;
    }
    else {
        parent = parentChord;
    }

    if (!parentChord && !parentNote) {
        // no parent chord or note, nothing we can do...
        return FUNCTOR_CONTINUE;
    }

    Staff *staff = dynamic_cast<Staff *>(this->GetFirstParent(STAFF));
    assert(staff);
    Layer *layer = dynamic_cast<Layer *>(this->GetFirstParent(LAYER));
    assert(layer);

    stemDir = parentNote ? parentNote->GetDrawingStemDir() : parentChord->GetDrawingStemDir();

    /************** placement **************/

    bool allowAbove = true;

    // for now we ignore within @place
    if (this->HasPlace() && (this->GetPlace() != STAFFREL_within)) {
        place = this->GetPlace();
        // If we have a place indication do not allow to be changed to above
        allowAbove = false;
    }
    else if (layer->GetDrawingStemDir() != STEMDIRECTION_NONE) {
        place = (layer->GetDrawingStemDir() == STEMDIRECTION_up) ? STAFFREL_above : STAFFREL_below;
        // If we have more than one layer do not allow to be changed to above
        allowAbove = false;
    }
    else if (stemDir == STEMDIRECTION_up)
        place = STAFFREL_below;
    else
        place = STAFFREL_above;

    /************** set it to both the inside and outside part **************/

    ArticPart *insidePart = this->GetInsidePart();
    ArticPart *outsidePart = this->GetOutsidePart();

    if (insidePart) {
        insidePart->SetPlace(place);
    }

    if (outsidePart) {
        // If allowAbove is true it will place the above if the content requires so (even if place below if given)
        if (place == STAFFREL_below && allowAbove && outsidePart->AlwaysAbove()) place = STAFFREL_above;
        outsidePart->SetPlace(place);
    }

    /************** calculate the y position **************/

    Staff *staffAbove = NULL;
    Staff *staffBelow = NULL;

    // Cross-staff handling of articulation will need to be re-thought. We can look at assiging a cross-staff to the
    // appropriate ArticPart
    // (see below) - For chords, we need to distinguish cross-staff chords and cross-staff chord notes
    if (parent->m_crossStaff && parent->m_crossLayer) {
        staff = parent->m_crossStaff;
        staffAbove = staff;
        staffBelow = staff;
    }
    else if (parentChord) {
        parentChord->GetCrossStaffExtremes(staffAbove, staffBelow);
    }

    int staffYBottom = -params->m_doc->GetDrawingStaffSize(staff->m_drawingStaffSize);
    // Avoid in artic to be in legder lines
    int yInAbove = std::max(
        parent->GetDrawingTop(params->m_doc, staff->m_drawingStaffSize, false) - staff->GetDrawingY(), staffYBottom);
    int yInBelow
        = std::min(parent->GetDrawingBottom(params->m_doc, staff->m_drawingStaffSize, false) - staff->GetDrawingY(), 0);
    int yOutAbove = std::max(yInAbove, 0);
    int yOutBelow = std::min(yInBelow, staffYBottom);

    // Does not work properly with chords, needs rethinking - It might be better to make artic or articPart relative to
    // notes
    // The problem is that in MEI artic are children of chord element and not of the notes
    if (insidePart) {
        if (insidePart->GetPlace() == STAFFREL_above) {
            insidePart->SetDrawingYRel(yInAbove);
            insidePart->m_crossStaff = staffAbove;
        }
        else {
            insidePart->SetDrawingYRel(yInBelow);
            insidePart->m_crossStaff = staffBelow;
        }
    }

    if (outsidePart) {
        if (outsidePart->GetPlace() == STAFFREL_above) {
            outsidePart->SetDrawingYRel(yOutAbove);
            outsidePart->m_crossStaff = staffAbove;
        }
        else {
            outsidePart->SetDrawingYRel(yOutBelow);
            outsidePart->m_crossStaff = staffBelow;
        }
    }

    // If we have both an inside and outside part we need to move the outside part away when they are both on the same
    // side
    if (insidePart && outsidePart) {

        int margin = params->m_doc->GetTopMargin(insidePart->GetClassId())
            * params->m_doc->GetDrawingUnit(staff->m_drawingStaffSize) / PARAM_DENOMINATOR;

        if (insidePart->GetPlace() == outsidePart->GetPlace()) {
            if (insidePart->GetPlace() == STAFFREL_above) {
                int inTop = insidePart->GetContentTop();
                int outBottom = outsidePart->GetContentBottom();
                if (inTop > outBottom)
                    outsidePart->SetDrawingYRel(outsidePart->GetDrawingYRel() + inTop - outBottom + margin);
            }
            else {
                int inBottom = insidePart->GetContentBottom();
                int outTop = outsidePart->GetContentTop();
                if (inBottom < outTop)
                    outsidePart->SetDrawingYRel(outsidePart->GetDrawingYRel() + outTop - inBottom + margin);
            }
        }
    }

    return FUNCTOR_SIBLINGS;
}
예제 #2
0
void View::DrawSlurInitial(FloatingCurvePositioner *curve, Slur *slur, int x1, int x2, Staff *staff, char spanningType)
{
    Beam *parentBeam = NULL;
    Chord *startParentChord = NULL;
    Chord *endParentChord = NULL;
    Note *startNote = NULL;
    Note *endNote = NULL;
    Chord *startChord = NULL;
    Chord *endChord = NULL;

    curvature_CURVEDIR drawingCurveDir = curvature_CURVEDIR_above;
    data_STEMDIRECTION startStemDir = STEMDIRECTION_NONE;
    data_STEMDIRECTION endStemDir = STEMDIRECTION_NONE;
    data_STEMDIRECTION stemDir = STEMDIRECTION_NONE;
    bool isGraceToNoteSlur = false;
    int y1 = staff->GetDrawingY();
    int y2 = staff->GetDrawingY();

    /************** parent layers **************/

    LayerElement *start = dynamic_cast<LayerElement *>(slur->GetStart());
    LayerElement *end = dynamic_cast<LayerElement *>(slur->GetEnd());

    if (!start || !end) {
        // no start and end, obviously nothing to do...
        return;
    }

    if (start->Is(TIMESTAMP_ATTR) && end->Is(TIMESTAMP_ATTR)) {
        // for now ignore slur using 2 tstamps
        return;
    }

    if (start->Is(NOTE)) {
        startNote = dynamic_cast<Note *>(start);
        assert(startNote);
        startParentChord = startNote->IsChordTone();
        startStemDir = startNote->GetDrawingStemDir();
    }
    else if (start->Is(CHORD)) {
        startChord = dynamic_cast<Chord *>(start);
        assert(startChord);
        startStemDir = startChord->GetDrawingStemDir();
    }
    if (end->Is(NOTE)) {
        endNote = dynamic_cast<Note *>(end);
        assert(endNote);
        endParentChord = endNote->IsChordTone();
        endStemDir = endNote->GetDrawingStemDir();
    }
    else if (end->Is(CHORD)) {
        endChord = dynamic_cast<Chord *>(end);
        assert(endChord);
        endStemDir = endChord->GetDrawingStemDir();
    }

    if (startNote && endNote && startNote->IsGraceNote() && !endNote->IsGraceNote()) {
        isGraceToNoteSlur = true;
    }

    Layer *layer = NULL;
    LayerElement *layerElement = NULL;
    // For now, with timestamps, get the first layer. We should eventually look at the @layerident (not implemented)
    if (!start->Is(TIMESTAMP_ATTR)) {
        layer = dynamic_cast<Layer *>(start->GetFirstParent(LAYER));
        layerElement = start;
    }
    else {
        layer = dynamic_cast<Layer *>(end->GetFirstParent(LAYER));
        layerElement = end;
    }
    assert(layer);

    if (!start->Is(TIMESTAMP_ATTR) && !end->Is(TIMESTAMP_ATTR) && (spanningType == SPANNING_START_END)) {
        System *system = dynamic_cast<System *>(staff->GetFirstParent(SYSTEM));
        assert(system);
        // If we have a start to end situation, then store the curvedir in the slur for mixed drawing stem dir
        // situations
        if (system->HasMixedDrawingStemDir(start, end)) {
            slur->SetDrawingCurvedir(curvature_CURVEDIR_above);
        }
    }

    /************** calculate the radius for adjusting the x position **************/

    int startRadius = 0;
    if (!start->Is(TIMESTAMP_ATTR)) {
        startRadius = start->GetDrawingRadius(m_doc);
    }

    int endRadius = 0;
    if (!end->Is(TIMESTAMP_ATTR)) {
        endRadius = end->GetDrawingRadius(m_doc);
    }

    /************** note stem dir **************/

    if (spanningType == SPANNING_START_END) {
        stemDir = startStemDir;
    }
    // This is the case when the tie is split over two system of two pages.
    // In this case, we are now drawing its beginning to the end of the measure (i.e., the last aligner)
    else if (spanningType == SPANNING_START) {
        stemDir = startStemDir;
    }
    // Now this is the case when the tie is split but we are drawing the end of it
    else if (spanningType == SPANNING_END) {
        stemDir = endStemDir;
    }
    // Finally, slur accross an entire system; use the staff position and up (see below)
    else {
        stemDir = STEMDIRECTION_down;
    }

    /************** direction **************/

    data_STEMDIRECTION layerStemDir;

    // first should be the tie @curvedir
    if (slur->HasCurvedir()) {
        drawingCurveDir
            = (slur->GetCurvedir() == curvature_CURVEDIR_above) ? curvature_CURVEDIR_above : curvature_CURVEDIR_below;
    }
    // grace notes - always below unless we have a drawing stem direction on the layer
    else if (isGraceToNoteSlur && (layer->GetDrawingStemDir(layerElement) == STEMDIRECTION_NONE)) {
        drawingCurveDir = curvature_CURVEDIR_below;
    }
    // the normal case
    else if (slur->HasDrawingCurvedir()) {
        drawingCurveDir = slur->GetDrawingCurvedir();
    }
    // then layer direction trumps note direction
    else if (layer && ((layerStemDir = layer->GetDrawingStemDir(layerElement)) != STEMDIRECTION_NONE)) {
        drawingCurveDir = (layerStemDir == STEMDIRECTION_up) ? curvature_CURVEDIR_above : curvature_CURVEDIR_below;
    }
    // look if in a chord
    else if (startParentChord) {
        if (startParentChord->PositionInChord(startNote) < 0) {
            drawingCurveDir = curvature_CURVEDIR_below;
        }
        else if (startParentChord->PositionInChord(startNote) > 0) {
            drawingCurveDir = curvature_CURVEDIR_above;
        }
        // away from the stem if odd number (center note)
        else {
            drawingCurveDir = (stemDir != STEMDIRECTION_up) ? curvature_CURVEDIR_above : curvature_CURVEDIR_below;
        }
    }
    else if (stemDir == STEMDIRECTION_up) {
        drawingCurveDir = curvature_CURVEDIR_below;
    }
    else if (stemDir == STEMDIRECTION_NONE) {
        // no information from the note stem directions, look at the position in the notes
        int center = staff->GetDrawingY() - m_doc->GetDrawingDoubleUnit(staff->m_drawingStaffSize) * 2;
        drawingCurveDir = (start->GetDrawingY() > center) ? curvature_CURVEDIR_above : curvature_CURVEDIR_below;
    }

    /************** adjusting y position **************/

    bool isShortSlur = false;
    if (x2 - x1 < 1 * m_doc->GetDrawingDoubleUnit(staff->m_drawingStaffSize)) isShortSlur = true;

    int yChordMax, yChordMin;
    if ((spanningType == SPANNING_START_END) || (spanningType == SPANNING_START)) {
        // first get the min max of the chord (if any)
        if (startParentChord) {
            startParentChord->GetYExtremes(yChordMax, yChordMin);
        }
        else if (startChord) {
            startChord->GetYExtremes(yChordMax, yChordMin);
        }
        // slur is up
        if (drawingCurveDir == curvature_CURVEDIR_above) {
            // P(^)
            if (startStemDir == STEMDIRECTION_down) y1 = start->GetDrawingTop(m_doc, staff->m_drawingStaffSize);
            //  d(^)d
            else if (isShortSlur) {
                y1 = start->GetDrawingTop(m_doc, staff->m_drawingStaffSize);
            }
            // same but in beam - adjust the x too
            else if ((parentBeam = start->IsInBeam()) && !parentBeam->IsLastInBeam(start)) {
                y1 = start->GetDrawingTop(m_doc, staff->m_drawingStaffSize);
                x1 += startRadius - m_doc->GetDrawingStemWidth(staff->m_drawingStaffSize);
            }
            // d(^)
            else {
                // put it on the side, move it left, but not if we have a @stamp
                if (!start->Is(TIMESTAMP_ATTR)) x1 += m_doc->GetDrawingUnit(staff->m_drawingStaffSize) * 4 / 2;
                if (startChord || startParentChord)
                    y1 = yChordMin + m_doc->GetDrawingUnit(staff->m_drawingStaffSize) * 3;
                else
                    y1 = start->GetDrawingY() + m_doc->GetDrawingUnit(staff->m_drawingStaffSize) * 3;
            }
        }
        // slur is down
        else {
            // d(_)
            if (startStemDir == STEMDIRECTION_up) y1 = start->GetDrawingBottom(m_doc, staff->m_drawingStaffSize);
            // P(_)P
            else if (isShortSlur) {
                y1 = start->GetDrawingBottom(m_doc, staff->m_drawingStaffSize);
            }
            // same but in beam
            else if ((parentBeam = start->IsInBeam()) && !parentBeam->IsLastInBeam(start)) {
                y1 = start->GetDrawingBottom(m_doc, staff->m_drawingStaffSize);
                x1 -= startRadius - m_doc->GetDrawingStemWidth(staff->m_drawingStaffSize);
            }
            // P(_)
            else {
                // put it on the side, but no need to move it left
                if (startChord || startParentChord)
                    y1 = yChordMin - m_doc->GetDrawingUnit(staff->m_drawingStaffSize) * 3;
                else
                    y1 = start->GetDrawingY() - m_doc->GetDrawingUnit(staff->m_drawingStaffSize) * 3;
            }
        }
    }
    if ((spanningType == SPANNING_START_END) || (spanningType == SPANNING_END)) {
        // get the min max of the chord if any
        if (endParentChord) {
            endParentChord->GetYExtremes(yChordMax, yChordMin);
        }
        else if (endChord) {
            endChord->GetYExtremes(yChordMax, yChordMin);
        }
        // get the stem direction of the end
        // slur is up
        if (drawingCurveDir == curvature_CURVEDIR_above) {
            // (^)P
            if (endStemDir == STEMDIRECTION_down) y2 = end->GetDrawingTop(m_doc, staff->m_drawingStaffSize);
            // d(^)d
            else if (isShortSlur) {
                y2 = end->GetDrawingTop(m_doc, staff->m_drawingStaffSize);
            }
            // same but in beam - adjust the x too
            else if ((parentBeam = end->IsInBeam()) && !parentBeam->IsFirstInBeam(end)) {
                y2 = end->GetDrawingTop(m_doc, staff->m_drawingStaffSize);
                x2 += endRadius - m_doc->GetDrawingStemWidth(staff->m_drawingStaffSize);
            }
            // (^)d
            else {
                // put it on the side, no need to move it right
                if (endChord || endParentChord)
                    y2 = yChordMin + m_doc->GetDrawingUnit(staff->m_drawingStaffSize) * 3;
                else
                    y2 = end->GetDrawingY() + m_doc->GetDrawingUnit(staff->m_drawingStaffSize) * 3;
            }
        }
        else {
            if (isGraceToNoteSlur) {
                if (endNote) {
                    y2 = endNote->GetDrawingY();
                    x2 -= m_doc->GetDrawingUnit(staff->m_drawingStaffSize) * 2;
                    isShortSlur = true;
                }
                else {
                    y2 = y1;
                }
            }
            // (_)d
            else if (endStemDir == STEMDIRECTION_up)
                y2 = end->GetDrawingBottom(m_doc, staff->m_drawingStaffSize);
            // P(_)P
            else if (isShortSlur) {
                y2 = end->GetDrawingBottom(m_doc, staff->m_drawingStaffSize);
            }
            // same but in beam
            else if ((parentBeam = end->IsInBeam()) && !parentBeam->IsFirstInBeam(end)) {
                y2 = end->GetDrawingBottom(m_doc, staff->m_drawingStaffSize);
                //
                x2 -= endRadius - m_doc->GetDrawingStemWidth(staff->m_drawingStaffSize);
            }
            // (_)P
            else {
                // put it on the side, move it right, but not if we have a @stamp2
                if (!end->Is(TIMESTAMP_ATTR)) x2 -= m_doc->GetDrawingUnit(staff->m_drawingStaffSize) * 2;
                if (endChord || endParentChord)
                    y2 = yChordMin - m_doc->GetDrawingUnit(staff->m_drawingStaffSize) * 3;
                else
                    y2 = end->GetDrawingY() - m_doc->GetDrawingUnit(staff->m_drawingStaffSize) * 3;
            }
        }
    }

    // Positions not attached to a note
    if (spanningType == SPANNING_START) {
        if (drawingCurveDir == curvature_CURVEDIR_above)
            y2 = std::max(staff->GetDrawingY(), y1);
        else
            y2 = std::min(staff->GetDrawingY() - m_doc->GetDrawingStaffSize(staff->m_drawingStaffSize), y1);
    }
    if (end->Is(TIMESTAMP_ATTR)) {
        if (drawingCurveDir == curvature_CURVEDIR_above)
            y2 = std::max(staff->GetDrawingY(), y1);
        else
            y2 = std::min(staff->GetDrawingY() - m_doc->GetDrawingStaffSize(staff->m_drawingStaffSize), y1);
    }
    if (spanningType == SPANNING_END) {
        if (drawingCurveDir == curvature_CURVEDIR_above)
            y1 = std::max(staff->GetDrawingY(), y2);
        else
            y1 = std::min(staff->GetDrawingY() - m_doc->GetDrawingStaffSize(staff->m_drawingStaffSize), y2);
    }
    if (start->Is(TIMESTAMP_ATTR)) {
        if (drawingCurveDir == curvature_CURVEDIR_above)
            y1 = std::max(staff->GetDrawingY(), y2);
        else
            y1 = std::min(staff->GetDrawingY() - m_doc->GetDrawingStaffSize(staff->m_drawingStaffSize), y2);
    }
    // slur accross an entire system; use the staff position
    else if (spanningType == SPANNING_MIDDLE) {
        // To be adjusted
        if (drawingCurveDir == curvature_CURVEDIR_above)
            y1 = staff->GetDrawingY();
        else
            y1 = staff->GetDrawingY() - m_doc->GetDrawingStaffSize(staff->m_drawingStaffSize);
        y2 = y1;
    }

    /************** y position **************/

    if (drawingCurveDir == curvature_CURVEDIR_above) {
        y1 += 1 * m_doc->GetDrawingUnit(staff->m_drawingStaffSize);
        y2 += 1 * m_doc->GetDrawingUnit(staff->m_drawingStaffSize);
    }
    else {
        y1 -= 1 * m_doc->GetDrawingUnit(staff->m_drawingStaffSize);
        y2 -= 1 * m_doc->GetDrawingUnit(staff->m_drawingStaffSize);
    }

    Point points[4];
    points[0] = Point(x1, y1);
    points[3] = Point(x2, y2);

    float angle = CalcInitialSlur(curve, slur, staff, layer->GetN(), drawingCurveDir, points);
    int thickness = m_doc->GetDrawingUnit(staff->m_drawingStaffSize) * m_options->m_slurThickness.GetValue();

    curve->UpdateCurveParams(points, angle, thickness, drawingCurveDir);

    /************** articulation **************/

    // First get all artic children
    ClassIdComparison matchType(ARTIC);
    ArrayOfObjects artics;
    ArrayOfObjects::iterator articIter;

    // the normal case or start
    if ((spanningType == SPANNING_START_END) || (spanningType == SPANNING_START)) {
        start->FindAllChildByComparison(&artics, &matchType);
        // Then the @n of each first staffDef
        for (articIter = artics.begin(); articIter != artics.end(); ++articIter) {
            Artic *artic = dynamic_cast<Artic *>(*articIter);
            assert(artic);
            ArticPart *outsidePart = artic->GetOutsidePart();
            if (outsidePart) {
                if ((outsidePart->GetPlace().GetBasic() == STAFFREL_basic_above)
                    && (drawingCurveDir == curvature_CURVEDIR_above)) {
                    outsidePart->AddSlurPositioner(curve, true);
                }
                else if ((outsidePart->GetPlace().GetBasic() == STAFFREL_basic_below)
                    && (drawingCurveDir == curvature_CURVEDIR_below)) {
                    outsidePart->AddSlurPositioner(curve, true);
                }
            }
        }
    }
    // normal case or end
    if ((spanningType == SPANNING_START_END) || (spanningType == SPANNING_END)) {
        end->FindAllChildByComparison(&artics, &matchType);
        // Then the @n of each first staffDef
        for (articIter = artics.begin(); articIter != artics.end(); ++articIter) {
            Artic *artic = dynamic_cast<Artic *>(*articIter);
            assert(artic);
            ArticPart *outsidePart = artic->GetOutsidePart();
            if (outsidePart) {
                if ((outsidePart->GetPlace().GetBasic() == STAFFREL_basic_above)
                    && (drawingCurveDir == curvature_CURVEDIR_above)) {
                    outsidePart->AddSlurPositioner(curve, false);
                }
                else if ((outsidePart->GetPlace().GetBasic() == STAFFREL_basic_below)
                    && (drawingCurveDir == curvature_CURVEDIR_below)) {
                    outsidePart->AddSlurPositioner(curve, false);
                }
            }
        }
    }

    return;
}