Merge pull request musescore#20064 from miiizen/19206-slur-direction

Update chord direction under slur

src/engraving/dom/score.cpp

@@ -5597,6 +5597,19 @@ void Score::doLayoutRange(const Fraction& st, const Fraction& et)
 {
     TRACEFUNC;
 
+    Fraction start = st;
+    Fraction end = et;
+
+    auto spanners = score()->spannerMap().findOverlapping(st.ticks(), et.ticks());
+    for (auto interval : spanners) {
+        Spanner* spanner = interval.value;
+        if (!spanner->staff()->visible()) {
+            continue;
+        }
+        start = std::min(st, spanner->tick());
+        end = std::max(et, spanner->tick2());
+    }
+
     m_engravingFont = engravingFonts()->fontByName(style().value(Sid::MusicalSymbolFont).value<String>().toStdString());
     m_layoutOptions.noteHeadWidth = m_engravingFont->width(SymId::noteheadBlack, style().spatium() / SPATIUM20);
 
@@ -5610,7 +5623,7 @@ void Score::doLayoutRange(const Fraction& st, const Fraction& et)
         this->updateVelo();
     }
 
-    renderer()->layoutScore(this, st, et);
+    renderer()->layoutScore(this, start, end);
 
     if (m_resetAutoplace) {
         m_resetAutoplace = false;

src/engraving/dom/slur.cpp

@@ -338,8 +338,12 @@ Shape SlurSegment::getSegmentShape(Segment* seg, ChordRest* startCR, ChordRest*
         if (!e || !e->isChordRest()) {
             continue;
         }
-        // Gets ties shapes
+        // Gets tie and 2 note tremolo shapes
         if (e->isChord()) {
+            Chord* chord = toChord(e);
+            if (chord->tremolo() && chord->tremolo()->twoNotes()) {
+                segShape.add(chord->tremolo()->shape());
+            }
             for (Note* note : toChord(e)->notes()) {
                 Tie* tieFor = note->tieFor();
                 Tie* tieBack = note->tieBack();
@@ -913,41 +917,9 @@ int Slur::calcStemArrangement(EngravingItem* start, EngravingItem* end)
 
 bool Slur::isDirectionMixture(Chord* c1, Chord* c2)
 {
-    if (c1->track() != c2->track()) {
-        return false;
-    }
-    bool up = c1->up();
-    if (c2->isGrace() && c2->up() != up) {
-        return true;
-    }
-    if (c1->isGraceBefore() && c2->isGraceAfter() && c1->parentItem() == c2->parentItem()) {
-        if (toChord(c1->parentItem())->stem() && toChord(c1->parentItem())->up() != up) {
-            return true;
-        }
-    }
-    track_idx_t track = c1->track();
-    for (Measure* m = c1->measure(); m; m = m->nextMeasure()) {
-        for (Segment* seg = m->first(); seg; seg = seg->next(SegmentType::ChordRest)) {
-            if (!seg || seg->tick() < c1->tick() || !seg->isChordRestType()) {
-                continue;
-            }
-            if (seg->tick() > c2->tick()) {
-                return false;
-            }
-            if ((c1->isGrace() || c2->isGraceBefore()) && seg->tick() >= c2->tick()) {
-                // if slur ends at a grace-note-before, we don't need to look at the main note
-                return false;
-            }
-            EngravingItem* e = seg->element(track);
-            if (!e || !e->isChord()) {
-                continue;
-            }
-            Chord* c = toChord(e);
-            if (c->up() != up) {
-                return true;
-            }
-        }
-    }
+    UNUSED(c1);
+    UNUSED(c2);
+    UNREACHABLE;
     return false;
 }
 

src/engraving/rendering/dev/slurtielayout.cpp

@@ -118,7 +118,7 @@ void SlurTieLayout::layout(Slur* item, LayoutContext& ctx)
             item->setUp(!(item->startCR()->up()));
         }
 
-        if (c1 && c2 && Slur::isDirectionMixture(c1, c2) && (c1->noteType() == NoteType::NORMAL)) {
+        if (c1 && c2 && isDirectionMixture(c1, c2, ctx) && (c1->noteType() == NoteType::NORMAL)) {
             // slurs go above if start and end note have different stem directions,
             // but grace notes are exceptions
             item->setUp(true);
@@ -1739,11 +1739,11 @@ void SlurTieLayout::computeUp(Slur* slur, LayoutContext& ctx)
             } else {
                 slur->setUp(true);
             }
-        } else if (chord1 && chord2 && !chord1->isGrace() && slur->isDirectionMixture(chord1, chord2)) {
+        } else if (chord1 && chord2 && !chord1->isGrace() && isDirectionMixture(chord1, chord2, ctx)) {
             // slurs go above if there are mixed direction stems between c1 and c2
             // but grace notes are exceptions
             slur->setUp(true);
-        } else if (chord1 && chord2 && chord1->isGrace() && chord2 != chord1->parent() && slur->isDirectionMixture(chord1, chord2)) {
+        } else if (chord1 && chord2 && chord1->isGrace() && chord2 != chord1->parent() && isDirectionMixture(chord1, chord2, ctx)) {
             slur->setUp(true);
         }
     }
@@ -1765,6 +1765,47 @@ double SlurTieLayout::defaultStemLengthEnd(Tremolo* tremolo)
                                                             tremolo->chord2()->defaultStemLength()).second;
 }
 
+bool SlurTieLayout::isDirectionMixture(const Chord* c1, const Chord* c2, LayoutContext& ctx)
+{
+    if (c1->track() != c2->track()) {
+        return false;
+    }
+    const bool up = c1->up();
+    if (c2->isGrace() && c2->up() != up) {
+        return true;
+    }
+    if (c1->isGraceBefore() && c2->isGraceAfter() && c1->parentItem() == c2->parentItem()) {
+        if (toChord(c1->parentItem())->stem() && toChord(c1->parentItem())->up() != up) {
+            return true;
+        }
+    }
+    const track_idx_t track = c1->track();
+    for (const Segment* seg = c1->segment(); seg && seg->tick() <= c2->tick(); seg = seg->next1(SegmentType::ChordRest)) {
+        if ((c1->isGrace() || c2->isGraceBefore()) && seg->tick() == c2->tick()) {
+            // if slur ends at a grace-note-before, we don't need to look at the main note
+            return false;
+        }
+        EngravingItem* e = seg->element(track);
+        if (!e || !e->isChord()) {
+            continue;
+        }
+        Chord* c = toChord(e);
+        const Measure* m = c->measure();
+        if (!c->staff()->isDrumStaff(c->tick()) && c1->measure()->system() != m->system()) {
+            // This chord is on a different system and may not have been laid out yet
+            for (Note* note : c->notes()) {
+                note->updateLine();     // because chord direction is based on note lines
+            }
+            ChordLayout::computeUp(c, ctx);
+        }
+
+        if (c->up() != up) {
+            return true;
+        }
+    }
+    return false;
+}
+
 void SlurTieLayout::layoutSegment(SlurSegment* item, LayoutContext& ctx, const PointF& p1, const PointF& p2)
 {
     SlurSegment::LayoutData* ldata = item->mutldata();

src/engraving/rendering/dev/slurtielayout.h

@@ -74,6 +74,8 @@ class SlurTieLayout
     static double defaultStemLengthStart(Tremolo* tremolo);
     static double defaultStemLengthEnd(Tremolo* tremolo);
 
+    static bool isDirectionMixture(const Chord* c1, const Chord* c2, LayoutContext& ctx);
+
     static void layoutSegment(SlurSegment* item, LayoutContext& ctx, const PointF& p1, const PointF& p2);
 };
 }