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;
}
