void StemDetection::findStems()
{
	cerr << "...Finding stems..." << endl;
	int nRows = vBoard.size(), nCols = vBoard[0].size();
	for (int j = 0; j < nCols; j++)
	{
		for (int i = 0, len = 0, start = 0; i <= nRows; i++)
		{
			if (i == nRows || vBoard[i][j] == WHITE)
			{
				if (len >= 2 * staffSpaceHeight)
				{
					Stem stem;
					for (int k = start; k < i; k++)
						stem.AddPixel(Point2i(k, j));
					if (isStem(stem))
						stems.push_back(stem);
				}
				len = 0;
				start = i + 1;
				continue;
			}
			else
				len++;
		}
	}
	mergeStems();
	filterStems();
}
Exemplo n.º 2
0
//---------------------------------------------------------
//   updateExample
//---------------------------------------------------------
void EditDrumset::updateExample()
      {
      int pitch = pitchList->currentItem()->data(0, Qt::UserRole).toInt();
      if (!nDrumset.isValid(pitch)) {
            drumNote->add(0,  0, "");
            return;
            }
      int line      = nDrumset.line(pitch);
      NoteHead::Group noteHead = nDrumset.noteHead(pitch);
      int voice     = nDrumset.voice(pitch);
      Direction dir = nDrumset.stemDirection(pitch);
      bool up = (Direction::UP == dir) || (Direction::AUTO == dir && line > 4);
      Chord* chord = new Chord(gscore);
      chord->setDurationType(TDuration::DurationType::V_QUARTER);
      chord->setStemDirection(dir);
      chord->setTrack(voice);
      chord->setUp(up);
      Note* note = new Note(gscore);
      note->setParent(chord);
      note->setTrack(voice);
      note->setPitch(pitch);
      note->setTpcFromPitch();
      note->setLine(line);
      note->setPos(0.0, gscore->spatium() * .5 * line);
      note->setHeadType(NoteHead::Type::HEAD_QUARTER);
      note->setHeadGroup(noteHead);
      note->setCachedNoteheadSym(Sym::name2id(quarterCmb->currentData().toString()));
      chord->add(note);
      Stem* stem = new Stem(gscore);
      stem->setLen((up ? -3.0 : 3.0) * gscore->spatium());
      chord->add(stem);
      drumNote->add(0,  chord, qApp->translate("drumset", nDrumset.name(pitch).toUtf8().constData()));
      }
Exemplo n.º 3
0
void DrumTools::setDrumset(Score* s, Staff* st, Drumset* ds)
      {
      if (s == _score && staff == st && drumset == ds)
            return;
      _score  = s;
      staff   = st;
      drumset = ds;
      drumPalette->clear();
      if (drumset == 0)
            return;
      int drumInstruments = 0;
      for (int pitch = 0; pitch < 128; ++pitch) {
            if (drumset->isValid(pitch))
                  ++drumInstruments;
            }
      int i = 0;
      double _spatium = gscore->spatium();
      for (int pitch = 0; pitch < 128; ++pitch) {
            if (!ds->isValid(pitch))
                  continue;
            bool up;
            int line      = ds->line(pitch);
            int noteHead  = ds->noteHead(pitch);
            int voice     = ds->voice(pitch);
            Direction dir = ds->stemDirection(pitch);
            if (dir == UP)
                  up = true;
            else if (dir == DOWN)
                  up = false;
            else
                  up = line > 4;

            Chord* chord = new Chord(gscore);
            chord->setDurationType(Duration::V_QUARTER);
            chord->setStemDirection(dir);
            chord->setTrack(voice);
            Note* note = new Note(gscore);
            note->setParent(chord);
            note->setTrack(voice);
            note->setPitch(pitch);
            note->setTpcFromPitch();
            note->setLine(line);
            note->setPos(0.0, _spatium * .5 * line);
            note->setHeadGroup(noteHead);
            chord->add(note);
            Stem* stem = new Stem(gscore);
            stem->setLen((up ? -3.0 : 3.0) * _spatium);
            chord->setStem(stem);
            stem->setPos(note->stemPos(up));
            int sc = drumset->shortcut(pitch);
            QString shortcut;
            if (sc)
                  shortcut = QChar(sc);
            drumPalette->append(chord, qApp->translate("drumset", qPrintable(drumset->name(pitch))), shortcut);
            ++i;
            }
      }
Exemplo n.º 4
0
void DrumTools::updateDrumset(const Drumset* ds)
      {
      drumPalette->clear();
      drumset = ds;
      if (!drumset)
            return;
      double _spatium = gscore->spatium();
      for (int pitch = 0; pitch < 128; ++pitch) {
            if (!drumset->isValid(pitch))
                  continue;
            bool up;
            int line      = drumset->line(pitch);
            NoteHead::Group noteHead  = drumset->noteHead(pitch);
            int voice     = drumset->voice(pitch);
            Direction dir = drumset->stemDirection(pitch);
            if (dir == Direction::UP)
                  up = true;
            else if (dir == Direction::DOWN)
                  up = false;
            else
                  up = line > 4;

            Chord* chord = new Chord(gscore);
            chord->setDurationType(TDuration::DurationType::V_QUARTER);
            chord->setStemDirection(dir);
            chord->setUp(up);
            chord->setTrack(voice);
            Stem* stem = new Stem(gscore);
            stem->setLen((up ? -3.0 : 3.0) * _spatium);
            chord->add(stem);
            Note* note = new Note(gscore);
            note->setMark(true);
            note->setParent(chord);
            note->setTrack(voice);
            note->setPitch(pitch);
            note->setTpcFromPitch();
            note->setLine(line);
            note->setPos(0.0, _spatium * .5 * line);
            note->setHeadGroup(noteHead);
            SymId noteheadSym = SymId::noteheadBlack;
            if (noteHead == NoteHead::Group::HEAD_CUSTOM)
                  noteheadSym = drumset->noteHeads(pitch, NoteHead::Type::HEAD_QUARTER);
            else
                  noteheadSym = note->noteHead(true, noteHead, NoteHead::Type::HEAD_QUARTER);
            
            note->setCachedNoteheadSym(noteheadSym); // we use the cached notehead so we don't recompute it at each layout
            chord->add(note);
            int sc = drumset->shortcut(pitch);
            QString shortcut;
            if (sc)
                  shortcut = QChar(sc);
            drumPalette->append(chord, qApp->translate("drumset", drumset->name(pitch).toUtf8().data()), shortcut);
            }
      }
Exemplo n.º 5
0
void DrumTools::updateDrumset(const Drumset* ds)
      {
      drumPalette->clear();
      drumset = ds;
      if (!drumset)
            return;
      double _spatium = gscore->spatium();
      for (int pitch = 0; pitch < 128; ++pitch) {
            if (!drumset->isValid(pitch))
                  continue;
            bool up;
            int line      = drumset->line(pitch);
            NoteHead::Group noteHead  = drumset->noteHead(pitch);
            int voice     = drumset->voice(pitch);
            Direction dir = drumset->stemDirection(pitch);
            if (dir == Direction::UP)
                  up = true;
            else if (dir == Direction::DOWN)
                  up = false;
            else
                  up = line > 4;

            Chord* chord = new Chord(gscore);
            chord->setDurationType(TDuration::DurationType::V_QUARTER);
            chord->setStemDirection(dir);
            chord->setUp(up);
            chord->setTrack(voice);
            Note* note = new Note(gscore);
            note->setParent(chord);
            note->setTrack(voice);
            note->setPitch(pitch);
            note->setTpcFromPitch();
            note->setLine(line);
            note->setPos(0.0, _spatium * .5 * line);
            note->setHeadGroup(noteHead);
            chord->add(note);
            Stem* stem = new Stem(gscore);
            stem->setLen((up ? -3.0 : 3.0) * _spatium);
            chord->add(stem);
            stem->setPos(chord->stemPos());
            int sc = drumset->shortcut(pitch);
            QString shortcut;
            if (sc)
                  shortcut = QChar(sc);
            drumPalette->append(chord, qApp->translate("drumset", drumset->name(pitch).toLatin1().data()), shortcut);
            }
      }
Exemplo n.º 6
0
void EditDrumset::updateExample()
      {
      int pitch = pitchList->currentItem()->data(0, Qt::UserRole).toInt();
      if (!nDrumset.isValid(pitch)) {
            drumNote->add(0,  0, "");
            return;
            }
      int line      = nDrumset.line(pitch);
      NoteHead::Group noteHead = nDrumset.noteHead(pitch);
      int voice     = nDrumset.voice(pitch);
      MScore::Direction dir = nDrumset.stemDirection(pitch);
      bool up;
      if (dir == MScore::Direction::UP)
            up = true;
      else if (dir == MScore::Direction::DOWN)
            up = false;
      else
            up = line > 4;
      Chord* chord = new Chord(gscore);
      chord->setDurationType(TDuration::DurationType::V_QUARTER);
      chord->setStemDirection(dir);
      chord->setTrack(voice);
      chord->setUp(up);
      Note* note = new Note(gscore);
      note->setParent(chord);
      note->setTrack(voice);
      note->setPitch(pitch);
      note->setTpcFromPitch();
      note->setLine(line);
      note->setPos(0.0, gscore->spatium() * .5 * line);
      note->setHeadGroup(noteHead);
      chord->add(note);
      Stem* stem = new Stem(gscore);
      stem->setLen((up ? -3.0 : 3.0) * gscore->spatium());
      chord->add(stem);
      stem->setPos(chord->stemPos());
      drumNote->add(0,  chord, qApp->translate("drumset", nDrumset.name(pitch).toUtf8().constData()));
      }
Exemplo n.º 7
0
void Tremolo::layout()
      {
      qreal _spatium  = spatium();

      qreal w2  = _spatium * score()->styleS(ST_tremoloWidth).val() * .5;
      qreal h2  = _spatium * score()->styleS(ST_tremoloBoxHeight).val()  * .5;
      qreal lw  = _spatium * score()->styleS(ST_tremoloStrokeWidth).val();
      qreal td  = _spatium * score()->styleS(ST_tremoloDistance).val();
      path      = QPainterPath();

      qreal ty   = 0.0;
      for (int i = 0; i < _lines; ++i) {
            path.moveTo(-w2,  ty + h2 - lw);
            path.lineTo( w2,  ty - h2);
            path.lineTo( w2,  ty - h2 + lw);
            path.lineTo(-w2,  ty + h2);

            path.closeSubpath();
            ty += td;
            }

      QRectF rect = path.boundingRect();
      if ((parent() == 0) && !twoNotes())
            rect.setHeight(rect.height() + _spatium);
      setbbox(rect);

      _chord1 = static_cast<Chord*>(parent());
      if (_chord1 == 0)
            return;
      Note* anchor1 = _chord1->upNote();
      Stem* stem    = _chord1->stem();
      qreal x, y, h;
      if (stem) {
            x  = stem->pos().x();
            y  = stem->pos().y();
            h  = stem->stemLen();
            }
      else {
            // center tremolo above note
            x = anchor1->x() + anchor1->headWidth() * .5;
            y = anchor1->y();
            h = 2.0 * _spatium + bbox().height();
            if (anchor1->line() > 4)
                  h *= -1;
            }
      if (!twoNotes()) {
            //
            // single note tremolos
            //
            bool up = _chord1->up();
            int line = up ? _chord1->upLine() : _chord1->downLine();
            static const qreal t[3][2][4][2] = {
                  // normal stem
                  {
                     // DOWN
                     {
                        // even line   odd line
                        { 6,           5          },  // line 1
                        { 6 - 2 * .8,  5 - 2 * .8 },  // line 2
                        { 6 - 4 * .8,  3          },  // line 3
                        { 2         ,  3          }   // line 4
                        },
                     // UP
                     {
                        // even line   odd line
                        { -6,          -5          },  // line 1
                        { -6,          -5          },  // line 2
                        { -6,          -3 - 4 * .8 },  // line 3
                        { -2 - 6 * .8, -3 - 6 * .8 }   // line 4
                        }
                     },
                  // stem with hook
                  {
                     // DOWN
                     {
                        // even line   odd line
                        { 3,           3          },  // line 1
                        { 2,           2          },  // line 2
                        { 2,           2          },  // line 3
                        { 2,           2          }   // line 4
                        },
                     // UP
                     {
                        // even line   odd line
                        { -3,          -3          },  // line 1
                        { -2 - 2 * .8, -2 - 2 * .8 },  // line 2
                        { -2 - 4 * .8, -2 - 4 * .8 },  // line 3
                        { -2 - 6 * .8, -2 - 6 * .8 }   // line 4
                        }
                     },
                  // stem with beam
                  {
                     // DOWN
                     {
                        // even line   odd line
                        { 3,           3          },  // line 1
                        { 2,           2          },  // line 2
                        { 2,           2          },  // line 3
                        { 2,           2          }   // line 4
                        },
                     // UP
                     {
                        // even line   odd line
                        { -3,          -3          },  // line 1
                        { -2 - 2 * .8, -2 - 2 * .8 },  // line 2
                        { -2 - 4 * .8, -2 - 4 * .8 },  // line 3
                        { -2 - 6 * .8, -2 - 6 * .8 }   // line 4
                        }
                     },
                  };
            int idx = _chord1->hook() ? 1 : (_chord1->beam() ? 2 : 0);
            y = (line + t[idx][up][_lines-1][line & 1]) * _spatium * .5;
            setPos(x, y);
            return;
            }
      y += (h - bbox().height()) * .5;
      //
      // two chord tremolo
      //
      Segment* s = _chord1->segment()->next();
      while (s) {
            if (s->element(track()) && (s->element(track())->type() == CHORD))
                  break;
            s = s->next();
            }
      if (s == 0) {
            qDebug("no second note of tremolo found");
            return;
            }

      _chord2 = static_cast<Chord*>(s->element(track()));
      _chord2->setTremolo(this);

      int x2  = _chord2->stemPosBeam().x();
      int x1  = _chord1->stemPosBeam().x();

      // qreal x2     = _chord2->_chord2->up()stemPos(_chord2->up(), true).x();
      // qreal x1     = _chord1->stemPos(_chord1->up(), true).x();
      x             = x1 - _chord1->pagePos().x() + (x2 - x1 + _chord1->upNote()->headWidth()) * .5;
      setPos(x, y);
      }
Exemplo n.º 8
0
void Fingering::layout()
      {
      if (parent()) {
            Fraction tick = parent()->tick();
            const Staff* st = staff();
            if (st && st->isTabStaff(tick) && !st->staffType(tick)->showTabFingering()) {
                  setbbox(QRectF());
                  return;
                  }
            }

      TextBase::layout();
      rypos() = 0.0;    // handle placement below

      if (autoplace() && note()) {
            Note* n      = note();
            Chord* chord = n->chord();
            bool voices  = chord->measure()->hasVoices(chord->staffIdx());
            bool tight   = voices && chord->notes().size() == 1 && !chord->beam() && tid() != Tid::STRING_NUMBER;

            qreal headWidth = n->bboxRightPos();

            // update offset after drag
            qreal rebase = 0.0;
            if (offsetChanged() != OffsetChange::NONE)
                  rebase = rebaseOffset();

            // temporarily exclude self from chord shape
            setAutoplace(false);

            if (layoutType() == ElementType::CHORD) {
                  Stem* stem = chord->stem();
                  Segment* s = chord->segment();
                  Measure* m = s->measure();
                  qreal sp = spatium();
                  qreal md = minDistance().val() * sp;
                  SysStaff* ss = m->system()->staff(chord->vStaffIdx());
                  Staff* vStaff = chord->staff();     // TODO: use current height at tick

                  if (n->mirror())
                        rxpos() -= n->ipos().x();
                  rxpos() += headWidth * .5;
                  if (placeAbove()) {
                        if (tight) {
                              if (chord->stem())
                                    rxpos() -= 0.8 * sp;
                              rypos() -= 1.5 * sp;
                              }
                        else {
                              QRectF r = bbox().translated(m->pos() + s->pos() + chord->pos() + n->pos() + pos());
                              SkylineLine sk(false);
                              sk.add(r.x(), r.bottom(), r.width());
                              qreal d = sk.minDistance(ss->skyline().north());
                              qreal yd = 0.0;
                              if (d > 0.0 && isStyled(Pid::MIN_DISTANCE))
                                    yd -= d + height() * .25;
                              // force extra space above staff & chord (but not other fingerings)
                              qreal top;
                              if (chord->up() && chord->beam() && stem) {
                                    top = stem->y() + stem->bbox().top();
                                    }
                              else {
                                    Note* un = chord->upNote();
                                    top = qMin(0.0, un->y() + un->bbox().top());
                                    }
                              top -= md;
                              qreal diff = (bbox().bottom() + ipos().y() + yd + n->y()) - top;
                              if (diff > 0.0)
                                    yd -= diff;
                              if (offsetChanged() != OffsetChange::NONE) {
                                    // user moved element within the skyline
                                    // we may need to adjust minDistance, yd, and/or offset
                                    bool inStaff = placeAbove() ? r.bottom() + rebase > 0.0 : r.top() + rebase < staff()->height();
                                    rebaseMinDistance(md, yd, sp, rebase, inStaff);
                                    }
                              rypos() += yd;
                              }
                        }
                  else {
                        if (tight) {
                              if (chord->stem())
                                    rxpos() += 0.8 * sp;
                              rypos() += 1.5 * sp;
                              }
                        else {
                              QRectF r = bbox().translated(m->pos() + s->pos() + chord->pos() + n->pos() + pos());
                              SkylineLine sk(true);
                              sk.add(r.x(), r.top(), r.width());
                              qreal d = ss->skyline().south().minDistance(sk);
                              qreal yd = 0.0;
                              if (d > 0.0 && isStyled(Pid::MIN_DISTANCE))
                                    yd += d + height() * .25;
                              // force extra space below staff & chord (but not other fingerings)
                              qreal bottom;
                              if (!chord->up() && chord->beam() && stem) {
                                    bottom = stem->y() + stem->bbox().bottom();
                                    }
                              else {
                                    Note* dn = chord->downNote();
                                    bottom = qMax(vStaff->height(), dn->y() + dn->bbox().bottom());
                                    }
                              bottom += md;
                              qreal diff = bottom - (bbox().top() + ipos().y() + yd + n->y());
                              if (diff > 0.0)
                                    yd += diff;
                              if (offsetChanged() != OffsetChange::NONE) {
                                    // user moved element within the skyline
                                    // we may need to adjust minDistance, yd, and/or offset
                                    bool inStaff = placeAbove() ? r.bottom() + rebase > 0.0 : r.top() + rebase < staff()->height();
                                    rebaseMinDistance(md, yd, sp, rebase, inStaff);
                                    }
                              rypos() += yd;
                              }
                        }
                  }
            else if (tid() == Tid::LH_GUITAR_FINGERING) {
                  // place to left of note
                  qreal left = n->shape().left();
                  if (left - n->x() > 0.0)
                        rxpos() -= left;
                  else
                        rxpos() -= n->x();
                  }
            // for other fingering styles, do not autoplace

            // restore autoplace
            setAutoplace(true);
            }
      else if (offsetChanged() != OffsetChange::NONE) {
            // rebase horizontally too, as autoplace may have adjusted it
            rebaseOffset(false);
            }
      setOffsetChanged(false);
      }
Exemplo n.º 9
0
void Tremolo::layout()
      {
      qreal _spatium  = spatium() * mag();

      qreal w2  = _spatium * score()->styleS(StyleIdx::tremoloWidth).val() * .5;
      qreal lw  = _spatium * score()->styleS(StyleIdx::tremoloStrokeWidth).val();
      qreal td  = _spatium * score()->styleS(StyleIdx::tremoloDistance).val();
      path      = QPainterPath();

      qreal ty   = 0.0;

      for (int i = 0; i < _lines; i++) {
            path.addRect(-w2, ty, 2.0 * w2, lw);
            ty += td;
            }

      // QRectF rect = path.boundingRect();
      // if ((parent() == 0) && !twoNotes())
      //       rect.setHeight(rect.height() + _spatium);

      _chord1 = static_cast<Chord*>(parent());
      if (_chord1 == 0) {
            // just for the palette
            QTransform shearTransform;
            shearTransform.shear(0.0, -(lw / 2.0) / w2);
            path = shearTransform.map(path);
            setbbox(path.boundingRect());
            addbbox(QRectF(bbox().x(), bbox().bottom(), bbox().width(), _spatium));
            return;
            }
      Note* anchor1 = _chord1->upNote();
      Stem* stem    = _chord1->stem();
      qreal x, y, h;
      if (stem) {
            x  = stem->pos().x();
            y  = stem->pos().y();
            h  = stem->stemLen();
            }
      else {
            // center tremolo above note
            x = anchor1->x() + anchor1->headWidth() * .5;
            y = anchor1->y();
            h = 2.0 * _spatium + bbox().height();
            if (anchor1->line() > 4)
                  h *= -1;
            }
      if (!twoNotes()) {
            //
            // single note tremolos
            //
            bool up = _chord1->up();
            int line = up ? _chord1->upLine() : _chord1->downLine();
            static const qreal t[3][2][4][2] = {
                  // normal stem
                  {
                     // DOWN
                     {
                        // even line   odd line
                        { 6,           5          },  // line 1
                        { 6 - 2 * .8,  5 - 2 * .8 },  // line 2
                        { 6 - 4 * .8,  3          },  // line 3
                        { 2         ,  3          }   // line 4
                        },
                     // UP
                     {
                        // even line   odd line
                        { -6,          -5          },  // line 1
                        { -6,          -5          },  // line 2
                        { -6,          -3 - 4 * .8 },  // line 3
                        { -2 - 6 * .8, -3 - 6 * .8 }   // line 4
                        }
                     },
                  // stem with hook
                  {
                     // DOWN
                     {
                        // even line   odd line
                        { 3,           3          },  // line 1
                        { 2,           2          },  // line 2
                        { 2,           2          },  // line 3
                        { 2,           2          }   // line 4
                        },
                     // UP
                     {
                        // even line   odd line
                        { -3,          -3          },  // line 1
                        { -2 - 2 * .8, -2 - 2 * .8 },  // line 2
                        { -2 - 4 * .8, -2 - 4 * .8 },  // line 3
                        { -2 - 6 * .8, -2 - 6 * .8 }   // line 4
                        }
                     },
                  // stem with beam
                  {
                     // DOWN
                     {
                        // even line   odd line
                        { 3,           3          },  // line 1
                        { 2,           2          },  // line 2
                        { 2,           2          },  // line 3
                        { 2,           2          }   // line 4
                        },
                     // UP
                     {
                        // even line   odd line
                        { -3,          -3          },  // line 1
                        { -2 - 2 * .8, -2 - 2 * .8 },  // line 2
                        { -2 - 4 * .8, -2 - 4 * .8 },  // line 3
                        { -2 - 6 * .8, -2 - 6 * .8 }   // line 4
                        }
                     },
                  };
            int idx = _chord1->hook() ? 1 : (_chord1->beam() ? 2 : 0);
            y = (line + t[idx][up][_lines-1][line & 1]) * spatium() * .5;

            QTransform shearTransform;
            shearTransform.shear(0.0, -(lw / 2.0) / w2);
            path = shearTransform.map(path);

            setbbox(path.boundingRect());
            setPos(x, y);
            adjustReadPos();
            return;
            }
      y += (h - bbox().height()) * .5;
      //
      // two chord tremolo
      //
      Segment* s = _chord1->segment()->next();
      while (s) {
            if (s->element(track()) && (s->element(track())->type() == Element::Type::CHORD))
                  break;
            s = s->next();
            }
      if (s == 0) {
            qDebug("no second note of tremolo found");
            return;
            }

      _chord2 = static_cast<Chord*>(s->element(track()));
      _chord2->setTremolo(this);

      Stem* stem1 = _chord1->stem();
      Stem* stem2 = _chord2->stem();

      // compute the y coordinates of the tips of the stems
      qreal y1, y2;
      qreal firstChordStaffY;

      if (stem2 && stem1) {
            // stemPageYOffset variable is used for the case when the first
            // chord is cross-staff
            firstChordStaffY = stem1->pagePos().y() - stem1->y();  // y coordinate of the staff of the first chord
            y1 = stem1->y() + stem1->p2().y();
            y2 = stem2->pagePos().y() - firstChordStaffY + stem2->p2().y();  // ->p2().y() is better than ->stemLen()
            }
      else {
            firstChordStaffY = _chord1->pagePos().y() - _chord1->y();  // y coordinate of the staff of the first chord
            y1 = _chord1->stemPosBeam().y() - firstChordStaffY + _chord1->defaultStemLength();
            y2 = _chord2->stemPosBeam().y() - firstChordStaffY + _chord2->defaultStemLength();
            }

      // improve the case when one stem is up and another is down
      if (_chord1->beams() == 0 && _chord2->beams() == 0 &&
          _chord1->up() != _chord2->up()) {
            qreal meanNote1Y = .5 * (_chord1->upNote()->pagePos().y() - firstChordStaffY + _chord1->downNote()->pagePos().y() - firstChordStaffY);
            qreal meanNote2Y = .5 * (_chord2->upNote()->pagePos().y() - firstChordStaffY + _chord2->downNote()->pagePos().y() - firstChordStaffY);
            y1 = .5 * (y1 + meanNote1Y);
            y2 = .5 * (y2 + meanNote2Y);
            }

      y = (y1 + y2) * .5;
      if (!_chord1->up()) {
            y -= path.boundingRect().height() * .5;
            }
      if (!_chord2->up()) {
            y -= path.boundingRect().height() * .5;
            }

      // compute the x coordinates of the inner edge of the stems
      qreal x2  = _chord2->stemPosBeam().x();
      if (_chord2->up() && stem2)
            x2 -= stem2->lineWidth();
      qreal x1  = _chord1->stemPosBeam().x();
      if (!_chord1->up() && stem1)
            x1 += stem1->lineWidth();

      x = (x1 + x2) * .5 - _chord1->pagePos().x();

      QTransform xScaleTransform;
      // TODO const qreal H_MULTIPLIER = score()->styleS(StyleIdx::tremoloBeamLengthMultiplier).val();
      const qreal H_MULTIPLIER = 0.62;
      // TODO const qreal MAX_H_LENGTH = _spatium * score()->styleS(StyleIdx::tremoloBeamLengthMultiplier).val();
      const qreal MAX_H_LENGTH = _spatium * 12.0;

      qreal xScaleFactor = qMin(H_MULTIPLIER * (x2 - x1), MAX_H_LENGTH);
      xScaleFactor /= (2.0 * w2);

      xScaleTransform.scale(xScaleFactor, 1.0);
      path = xScaleTransform.map(path);

      qreal beamYOffset = 0.0;

      if (_chord1->beams() == _chord2->beams() && _chord1->beam()) {
            int beams = _chord1->beams();
            qreal beamHalfLineWidth = point(score()->styleS(StyleIdx::beamWidth)) * .5 * mag();
            beamYOffset = beams * _chord1->beam()->beamDist() - beamHalfLineWidth;
            if (_chord1->up() != _chord2->up()) {  // cross-staff
                  beamYOffset += beamYOffset + beamHalfLineWidth;
                  }
            else if (!_chord1->up() && !_chord2->up()) {
                  beamYOffset = -beamYOffset;
                  }
            }

      QTransform shearTransform;
      if (_chord1->beams() == 0 && _chord2->beams() == 0) {
            if (_chord1->up() && !_chord2->up())
                  shearTransform.shear(0.0, (y2 - y1 - path.boundingRect().height()) / (x2 - x1));
            else if (!_chord1->up() && _chord2->up())
                  shearTransform.shear(0.0, (y2 - y1 + path.boundingRect().height()) / (x2 - x1));
            else
                  shearTransform.shear(0.0, (y2 - y1) / (x2 - x1));
            }
      else {
            shearTransform.shear(0.0, (y2 - y1) / (x2 - x1));
            }

      path = shearTransform.map(path);

      setbbox(path.boundingRect());
      setPos(x, y + beamYOffset);
      adjustReadPos();
      }
bool StemDetection::isStem(Stem & stem)
{
	int nRows = vBoard.size(), nCols = vBoard[0].size();
	Point2i minX = stem.GetMinX(), maxX = stem.GetMaxX();
	int height = stem.GetHeight();

	for (int x = minX.x; x <= min(minX.x + height / 4, maxX.x); x++)
	{
		int dist = maximumCanGo(x, minX.y, staffLineHeight);
		if (dist >= 3 * staffLineHeight) return true;
		/*int tolerance = staffLineHeight;
		int xLeft = minX.y, xRight = minX.y;
		while (xLeft >= 0)
		{
			if (vBoard[x][xLeft] == BLACK)
				xLeft--;
			else if (tolerance > 0)
			{
				xLeft--;
				tolerance--;
			}
			else
				break;
		}
		xLeft++;

		while (xRight < nCols)
		{
			if (vBoard[x][xRight] == BLACK)
				xRight++;
			else if (tolerance > 0)
			{
				xRight++;
				tolerance--;
			}
			else
				break;
		}
		xRight--;
		if (xRight - xLeft + 1 >= 3 * staffLineHeight)
			return true;*/
	}

	for (int x = maxX.x; x >= max(maxX.x - height / 4, minX.x); x--)
	{
		int dist = maximumCanGo(x, maxX.y, staffLineHeight);
		if (dist >= 3 * staffLineHeight) return true;
		/*int tolerance = staffLineHeight;
		int xLeft = maxX.y, xRight = maxX.y;
		while (xLeft >= 0)
		{
			if (vBoard[x][xLeft] == BLACK)
				xLeft--;
			else if (tolerance > 0)
			{
				xLeft--;
				tolerance--;
			}
			else
				break;
		}
		xLeft++;

		while (xRight < nCols)
		{
			if (vBoard[x][xRight] == BLACK)
				xRight++;
			else if (tolerance > 0)
			{
				xRight++;
				tolerance--;
			}
			else
				break;
		}
		xRight--;
		if (xRight - xLeft + 1 >= 3 * staffLineHeight)
			return true;*/
	}

	return false;
}
Exemplo n.º 11
0
void ChordRest::layoutArticulations()
      {
      if (parent() == 0 || _articulations.isEmpty())
            return;
      qreal _spatium  = spatium();
      qreal _spStaff  = _spatium * staff()->lineDistance(); // scaled to staff line distance for vert. pos. within a staff

      if (type() == Element::Type::CHORD) {
            if (_articulations.size() == 1) {
                  static_cast<Chord*>(this)->layoutArticulation(_articulations[0]);
                  return;
                  }
            if (_articulations.size() == 2) {
                  //
                  // staccato | tenuto + marcato
                  //
                  Articulation* a1 = _articulations[0];
                  Articulation* a2 = _articulations[1];
                  ArticulationType st1 = a1->articulationType();
                  ArticulationType st2 = a2->articulationType();

                  if ((st2 == ArticulationType::Tenuto || st2 == ArticulationType::Staccato)
                     && (st1 == ArticulationType::Marcato)) {
                        qSwap(a1, a2);
                        qSwap(st1, st2);
                        }
                  if ((st1 == ArticulationType::Tenuto || st1 == ArticulationType::Staccato)
                     && (st2 == ArticulationType::Marcato)) {
                        QPointF pt = static_cast<Chord*>(this)->layoutArticulation(a1);
                        pt.ry() += a1->up() ? -_spStaff * .5 : _spStaff * .5;
                        a2->layout();
                        a2->setUp(a1->up());
                        a2->setPos(pt);
                        a2->adjustReadPos();
                        return;
                        }
                  //
                  // staccato | tenuto + sforzato
                  //
                  if ((st2 == ArticulationType::Tenuto || st2 == ArticulationType::Staccato)
                     && (st1 == ArticulationType::Sforzatoaccent)) {
                        qSwap(a1, a2);
                        qSwap(st1, st2);
                        }
                  if ((st1 == ArticulationType::Tenuto || st1 == ArticulationType::Staccato)
                     && (st2 == ArticulationType::Sforzatoaccent)) {
                        QPointF pt = static_cast<Chord*>(this)->layoutArticulation(a1);
                        pt.ry() += a1->up() ? -_spStaff * .7 : _spStaff * .7;
                        a2->layout();
                        a2->setUp(a1->up());
                        a2->setPos(pt);
                        a2->adjustReadPos();
                        return;
                        }
                  }
            }

      qreal x         = centerX();
      qreal distance0 = score()->styleS(StyleIdx::propertyDistance).val()     * _spatium;
      qreal distance1 = score()->styleS(StyleIdx::propertyDistanceHead).val() * _spatium;
      qreal distance2 = score()->styleS(StyleIdx::propertyDistanceStem).val() * _spatium;

      qreal chordTopY = upPos();    // note position of highest note
      qreal chordBotY = downPos();  // note position of lowest note

      qreal staffTopY = -distance2;
      qreal staffBotY = staff()->height() + distance2;

      // avoid collisions of staff articulations with chord notes:
      // gap between note and staff articulation is distance0 + 0.5 spatium

      if (type() == Element::Type::CHORD) {
            Chord* chord = static_cast<Chord*>(this);
            Stem* stem   = chord->stem();
            if (stem) {
                  qreal y = stem->pos().y() + pos().y();
                  if (up() && stem->stemLen() < 0.0)
                        y += stem->stemLen();
                  else if (!up() && stem->stemLen() > 0.0)
                        y -= stem->stemLen();

                  if (beam()) {
                        qreal bw = score()->styleS(StyleIdx::beamWidth).val() * _spatium;
                        y += up() ? -bw : bw;
                        }
                  if (up())
                        staffTopY = qMin(staffTopY, qreal(y - 0.5 * _spatium));
                  else
                        staffBotY = qMax(staffBotY, qreal(y + 0.5 * _spatium));
                  }
            }

      staffTopY = qMin(staffTopY, qreal(chordTopY - distance0 - 0.5 * _spatium));
      staffBotY = qMax(staffBotY, qreal(chordBotY + distance0 + 0.5 * _spatium));

      qreal dy = 0.0;

      int n = _articulations.size();
      for (int i = 0; i < n; ++i) {
            Articulation* a = _articulations.at(i);
            //
            // determine MScore::Direction
            //
            if (a->direction() != MScore::Direction::AUTO) {
                  a->setUp(a->direction() == MScore::Direction::UP);
                  }
            else {
                  if (a->anchor() == ArticulationAnchor::CHORD)
                        a->setUp(!up());
                  else
                        a->setUp(a->anchor() == ArticulationAnchor::TOP_STAFF || a->anchor() == ArticulationAnchor::TOP_CHORD);
                  }
            }

      //
      //    pass 1
      //    place tenuto and staccato
      //

      for (int i = 0; i < n; ++i) {
            Articulation* a = _articulations.at(i);
            a->layout();
            ArticulationAnchor aa = a->anchor();

            if ((a->articulationType() != ArticulationType::Tenuto)
               && (a->articulationType() != ArticulationType::Staccato))
                  continue;

            if (aa != ArticulationAnchor::CHORD && aa != ArticulationAnchor::TOP_CHORD && aa != ArticulationAnchor::BOTTOM_CHORD)
                  continue;

            bool bottom;
            if ((aa == ArticulationAnchor::CHORD) && measure()->hasVoices(a->staffIdx()))
                  bottom = !up();
            else
                  bottom = (aa == ArticulationAnchor::BOTTOM_CHORD) || (aa == ArticulationAnchor::CHORD && up());
            bool headSide = bottom == up();

            dy += distance1;
            qreal y;
            Chord* chord = static_cast<Chord*>(this);
            if (bottom) {
                  int line = downLine();
                  y = chordBotY + dy;
                  if (!headSide && type() == Element::Type::CHORD && chord->stem()) {
                        Stem* stem = chord->stem();
                        y          = chordTopY + stem->stemLen();
                        if (chord->beam())
                              y += score()->styleS(StyleIdx::beamWidth).val() * _spatium * .5;
                        x          = stem->pos().x();
                        int line   = lrint((y+0.5*_spatium) / _spatium);
                        if (line <= 4)    // align between staff lines
                              y = line * _spatium + _spatium * .5;
                        else
                              y += _spatium;
                        }
                  else {
                        int lines = (staff()->lines() - 1) * 2;
                        if (line < lines)
                              y = (line & ~1) + 3;
                        else
                              y = line + 2;
                        y *= _spatium * .5;
                        }
                  }
            else {
                  int line = upLine();
                  y = chordTopY - dy;
                  if (!headSide && type() == Element::Type::CHORD && chord->stem()) {
                        Stem* stem = chord->stem();
                        y          = chordBotY + stem->stemLen();
                        if (chord->beam())
                              y -= score()->styleS(StyleIdx::beamWidth).val() * _spatium * .5;
                        x          = stem->pos().x();
                        int line   = lrint((y-0.5*_spatium) / _spatium);
                        if (line >= 0)    // align between staff lines
                              y = line * _spatium - _spatium * .5;
                        else
                              y -= _spatium;
                        }
                  else {
                        if (line > 0)
                              y = ((line+1) & ~1) - 3;
                        else
                              y = line - 2;
                        y *= _spatium * .5;
                        }
                  }
            dy += _spatium * .5;
            a->setPos(x, y);
            }

      // reserve space for slur
      bool botGap = false;
      bool topGap = false;

#if 0 // TODO-S: optimize
      for (Spanner* sp = _spannerFor; sp; sp = sp->next()) {
            if (sp->type() != SLUR)
                  continue;
            Slur* s = static_cast<Slur*>(sp);
            if (s->up())
                  topGap = true;
            else
                  botGap = true;
            }
      for (Spanner* sp = _spannerBack; sp; sp = sp->next()) {
            if (sp->type() != SLUR)
                  continue;
            Slur* s = static_cast<Slur*>(sp);
            if (s->up())
                  topGap = true;
            else
                  botGap = true;
            }
#endif
      if (botGap)
            chordBotY += _spatium;
      if (topGap)
            chordTopY -= _spatium;

      //
      //    pass 2
      //    place all articulations with anchor at chord/rest
      //
      n = _articulations.size();
      for (int i = 0; i < n; ++i) {
            Articulation* a = _articulations.at(i);
            a->layout();
            ArticulationAnchor aa = a->anchor();
            if ((a->articulationType() == ArticulationType::Tenuto)
               || (a->articulationType() == ArticulationType::Staccato))
                  continue;

            if (aa != ArticulationAnchor::CHORD && aa != ArticulationAnchor::TOP_CHORD && aa != ArticulationAnchor::BOTTOM_CHORD)
                  continue;

            // for tenuto and staccate check for staff line collision
            bool staffLineCT = a->articulationType() == ArticulationType::Tenuto
                               || a->articulationType() == ArticulationType::Staccato;

//            qreal sh = a->bbox().height() * mag();
            bool bottom = (aa == ArticulationAnchor::BOTTOM_CHORD) || (aa == ArticulationAnchor::CHORD && up());

            dy += distance1;
            if (bottom) {
                  qreal y = chordBotY + dy;
                  if (staffLineCT && (y <= staffBotY -.1 - dy)) {
                        qreal l = y / _spatium;
                        qreal delta = fabs(l - round(l));
                        if (delta < 0.4) {
                              y  += _spatium * .5;
                              dy += _spatium * .5;
                              }
                        }
                  a->setPos(x, y); // - a->bbox().y() + a->bbox().height() * .5);
                  }
            else {
                  qreal y = chordTopY - dy;
                  if (staffLineCT && (y >= (staffTopY +.1 + dy))) {
                        qreal l = y / _spatium;
                        qreal delta = fabs(l - round(l));
                        if (delta < 0.4) {
                              y  -= _spatium * .5;
                              dy += _spatium * .5;
                              }
                        }
                  a->setPos(x, y); // + a->bbox().y() - a->bbox().height() * .5);
                  }
            }

      //
      //    pass 3
      //    now place all articulations with staff top or bottom anchor
      //
      qreal dyTop = staffTopY;
      qreal dyBot = staffBotY;

/*      if ((upPos() - _spatium) < dyTop)
            dyTop = upPos() - _spatium;
      if ((downPos() + _spatium) > dyBot)
            dyBot = downPos() + _spatium;
  */
      for (int i = 0; i < n; ++i) {
            Articulation* a = _articulations.at(i);
            ArticulationAnchor aa = a->anchor();
            if (aa == ArticulationAnchor::TOP_STAFF || aa == ArticulationAnchor::BOTTOM_STAFF) {
                  if (a->up()) {
                        a->setPos(x, dyTop);
                        dyTop -= distance0;
                        }
                  else {
                        a->setPos(x, dyBot);
                        dyBot += distance0;
                        }
                  }
            a->adjustReadPos();
            }
      }