コード例 #1
0
ファイル: view_tuplet.cpp プロジェクト: ahwitz/verovio
data_STEMDIRECTION View::GetTupletCoordinates(Tuplet *tuplet, Layer *layer, Point *start, Point *end, Point *center)
{
    assert(tuplet);
    assert(layer);
    assert(start);
    assert(end);
    assert(center);

    Point first, last;
    int x, y;
    data_STEMDIRECTION direction = STEMDIRECTION_up;

    ListOfObjects *tupletChildren = tuplet->GetList(tuplet);
    LayerElement *firstElement = dynamic_cast<LayerElement *>(tupletChildren->front());
    LayerElement *lastElement = dynamic_cast<LayerElement *>(tupletChildren->back());

    // AllNotesBeamed tries to figure out if all the notes are in the same beam
    if (OneBeamInTuplet(tuplet)) {

        // yes they are in a beam
        x = firstElement->GetDrawingX()
            + (lastElement->GetDrawingX() - firstElement->GetDrawingX() + lastElement->m_selfBB_x2) / 2;

        // align the center point at the exact center of the first an last stem
        // TUPLET_OFFSET is summed so it does not collide with the stem
        Note *firstNote = dynamic_cast<Note *>(tuplet->FindChildByType(NOTE));
        Note *lastNote = dynamic_cast<Note *>(tuplet->FindChildByType(NOTE, UNLIMITED_DEPTH, BACKWARD));

        y = firstElement->GetDrawingY();
        if (firstNote && lastNote) {
            if (firstNote->GetDrawingStemDir() == STEMDIRECTION_up)
                y = lastNote->GetDrawingStemEnd().y
                    + (firstNote->GetDrawingStemEnd().y - lastNote->GetDrawingStemEnd().y) / 2 + TUPLET_OFFSET;
            else
                y = lastNote->GetDrawingStemEnd().y
                    + (firstNote->GetDrawingStemEnd().y - lastNote->GetDrawingStemEnd().y) / 2 - TUPLET_OFFSET;
        }

        // Copy the generated coordinates
        center->x = x;
        center->y = y;
        direction = firstNote->GetDrawingStemDir(); // stem direction is the same for all notes
    }
    else {
        // There are unbeamed notes of two different beams
        // treat all the notes as unbeamed
        int ups = 0, downs = 0; // quantity of up- and down-stems

        // In this case use the center of the notehead to calculate the exact center
        // as it looks better
        x = firstElement->GetDrawingX()
            + (lastElement->GetDrawingX() - firstElement->GetDrawingX() + lastElement->m_selfBB_x2) / 2;

        // Return the start and end position for the brackes
        // starting from the first edge and last of the BBoxes
        start->x = firstElement->m_selfBB_x1 + firstElement->GetDrawingX();
        end->x = lastElement->m_selfBB_x2 + lastElement->GetDrawingX();

        // The first step is to calculate all the stem directions
        // cycle into the elements and count the up and down dirs
        ListOfObjects::iterator iter = tupletChildren->begin();
        while (iter != tupletChildren->end()) {
            if ((*iter)->Is() == NOTE) {
                Note *currentNote = dynamic_cast<Note *>(*iter);
                assert(currentNote);
                if (currentNote->GetDrawingStemDir() == STEMDIRECTION_up)
                    ups++;
                else
                    downs++;
            }
            ++iter;
        }
        // true means up
        direction = ups > downs ? STEMDIRECTION_up : STEMDIRECTION_down;

        // if ups or downs are 0, it means all the stems go in the same direction
        if (ups == 0 || downs == 0) {

            Note *firstNote = dynamic_cast<Note *>(tuplet->FindChildByType(NOTE));
            Note *lastNote = dynamic_cast<Note *>(tuplet->FindChildByType(NOTE, UNLIMITED_DEPTH, BACKWARD));

            // Calculate the average between the first and last stem
            // set center, start and end too.
            y = firstElement->GetDrawingY();
            if (firstNote && lastNote) {
                if (direction == STEMDIRECTION_up) { // up
                    y = lastNote->GetDrawingStemEnd().y
                        + (firstNote->GetDrawingStemEnd().y - lastNote->GetDrawingStemEnd().y) / 2 + TUPLET_OFFSET;
                    start->y = firstNote->GetDrawingStemEnd().y + TUPLET_OFFSET;
                    end->y = lastNote->GetDrawingStemEnd().y + TUPLET_OFFSET;
                }
                else {
                    y = lastNote->GetDrawingStemEnd().y
                        + (firstNote->GetDrawingStemEnd().y - lastNote->GetDrawingStemEnd().y) / 2 - TUPLET_OFFSET;
                    start->y = firstNote->GetDrawingStemEnd().y - TUPLET_OFFSET;
                    end->y = lastNote->GetDrawingStemEnd().y - TUPLET_OFFSET;
                }
            }

            // Now we cycle again in all the intermediate notes (i.e. we start from the second note
            // and stop at last -1)
            // We will see if the position of the note is more (or less for down stems) of the calculated
            // average. In this case we offset down or up all the points
            iter = tupletChildren->begin();
            while (iter != tupletChildren->end()) {
                if ((*iter)->Is() == NOTE) {
                    Note *currentNote = dynamic_cast<Note *>(*iter);
                    assert(currentNote);

                    if (direction == STEMDIRECTION_up) {
                        // The note is more than the avg, adjust to y the difference
                        // from this note to the avg
                        if (currentNote->GetDrawingStemEnd().y + TUPLET_OFFSET > y) {
                            int offset = y - (currentNote->GetDrawingStemEnd().y + TUPLET_OFFSET);
                            y -= offset;
                            end->y -= offset;
                            start->y -= offset;
                        }
                    }
                    else {
                        if (currentNote->GetDrawingStemEnd().y - TUPLET_OFFSET < y) {
                            int offset = y - (currentNote->GetDrawingStemEnd().y - TUPLET_OFFSET);
                            y -= offset;
                            end->y -= offset;
                            start->y -= offset;
                        }
                    }
                }
                ++iter;
            }
        }
        else {
            // two-directional beams
            // this case is similar to the above, but the bracket is only horizontal
            // y is 0 because the final y pos is above the tallest stem
            y = 0;

            // Find the tallest stem and set y to it (with the offset distance)
            iter = tupletChildren->begin();
            while (iter != tupletChildren->end()) {
                if ((*iter)->Is() == NOTE) {
                    Note *currentNote = dynamic_cast<Note *>(*iter);
                    assert(currentNote);

                    if (currentNote->GetDrawingStemDir() == direction) {
                        if (direction == STEMDIRECTION_up) {
                            if (y == 0 || currentNote->GetDrawingStemEnd().y + TUPLET_OFFSET >= y)
                                y = currentNote->GetDrawingStemEnd().y + TUPLET_OFFSET;
                        }
                        else {
                            if (y == 0 || currentNote->GetDrawingStemEnd().y - TUPLET_OFFSET <= y)
                                y = currentNote->GetDrawingStemEnd().y - TUPLET_OFFSET;
                        }
                    }
                    else {
                        // do none for now
                        // but if a notehead with a reversed stem is taller that the last
                        // calculated y, we need to offset
                    }
                }
                ++iter;
            }

            // end and start are on the same line (and so il center when set later)
            end->y = start->y = y;
        }
    }

    center->x = x;
    center->y = y;
    return direction;
}
コード例 #2
0
ファイル: view_slur.cpp プロジェクト: rism-ch/verovio
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;
}