fix #29506: pedal line too short on single note

libmscore/pedal.cpp

@@ -274,7 +274,7 @@ QPointF Pedal::linePos(GripLine grip, System** sys) const
       {
       qreal x;
       qreal nhw = score()->noteHeadWidth();
-      System* s;
+      System* s = nullptr;
       if (grip == GripLine::START) {
             ChordRest* c = static_cast<ChordRest*>(startElement());
             s = c->segment()->system();
@@ -283,12 +283,36 @@ QPointF Pedal::linePos(GripLine grip, System** sys) const
                   x += nhw * .5;
             }
       else {
-            ChordRest* c = static_cast<ChordRest*>(endElement());
-            if (c) {
-                  s = c->segment()->system();
-                  x = c->pos().x() + c->segment()->pos().x() + c->segment()->measure()->pos().x();
+            ChordRest* c = nullptr;
+            Element* e = endElement();
+            if (!e || e == startElement()) {
+                  // pedal marking on single note - extend to next note or end of measure
+                  Segment* seg = startSegment();
+                  if (seg) {
+                        seg = seg->next();
+                        for ( ; seg; seg = seg->next()) {
+                              if (seg->segmentType() == Segment::Type::ChordRest) {
+                                    if (seg->element(track()))
+                                          break;
+                                    }
+                              else if (seg->segmentType() == Segment::Type::EndBarLine) {
+                                    break;
+                                    }
+                              }
+                        }
+                  if (seg) {
+                        s = seg->system();
+                        x = seg->pos().x() + seg->measure()->pos().x() - nhw * 2;
+                        }
                   }
             else {
+                  c = static_cast<ChordRest*>(endElement());
+                  if (c) {
+                        s = c->segment()->system();
+                        x = c->pos().x() + c->segment()->pos().x() + c->segment()->measure()->pos().x();
+                        }
+                  }
+            if (!s) {
                   int t = tick2();
                   Measure* m = score()->tick2measure(t);
                   s = m->system();

vtest/gen

@@ -29,7 +29,7 @@ else
        emmentaler-3 bravura-3 emmentaler-4 bravura-4 emmentaler-5 bravura-5\
        emmentaler-6 bravura-6 emmentaler-7 bravura-7\
        emmentaler-8 bravura-8 emmentaler-9 bravura-9 emmentaler-10 bravura-10\
-       emmentaler-11 bravura-11 frametext ottava slurs-1 slurs-2 hairpins-1\
+       emmentaler-11 bravura-11 frametext ottava slurs-1 slurs-2 hairpins-1 pedal-1\
        chord-layout-1 chord-layout-2 chord-layout-3 chord-layout-4 chord-layout-5\
        chord-layout-6 chord-layout-7 chord-layout-8 chord-layout-9 chord-layout-10\
        chord-layout-11 chord-layout-12 chord-layout-13 chord-layout-14\

vtest/gen.bat

@@ -9,7 +9,7 @@ set SRC=mmrest-1,bravura-mmrest,mmrest-2,mmrest-4,mmrest-5,mmrest-6,mmrest-7,mmr
  emmentaler-3,bravura-3,emmentaler-4,bravura-4,emmentaler-5,bravura-5, ^
  emmentaler-6,bravura-6,emmentaler-7,bravura-7, ^
  emmentaler-8,bravura-8,emmentaler-9,bravura-9,emmentaler-10,bravura-10, ^
- emmentlar-11,bravura-11,frametext,ottava,slurs-1,slurs-2,hairpins-1, ^
+ emmentlar-11,bravura-11,frametext,ottava,slurs-1,slurs-2,hairpins-1,pedal-1 ^
  chord-layout-1,chord-layout-2,chord-layout-3,chord-layout-4,chord-layout-5, ^
  chord-layout-6,chord-layout-7,chord-layout-8,chord-layout-9,chord-layout-10, ^
  chord-layout-11,chord-layout-12,chord-layout-13,chord-layout-13, ^