[palette] added layout for LayoutBreak

Author: igorkorsukov

src/engraving/layout/pal/tlayout.cpp

@@ -1208,9 +1208,10 @@ void TLayout::layout(KeySig*, LayoutContext&)
     UNREACHABLE;
 }
 
-void TLayout::layout(LayoutBreak* item, LayoutContext&)
+void TLayout::layout(LayoutBreak*, LayoutContext&)
 {
-    UNUSED(item);
+    //! NOTE Moved to PaletteLayout
+    UNREACHABLE;
 }
 
 void TLayout::layout(LedgerLine* item, LayoutContext& ctx)

src/palette/internal/palettelayout.cpp

@@ -145,6 +145,8 @@ void PaletteLayout::layoutItem(EngravingItem* item)
         break;
     case ElementType::KEYSIG:       layout(toKeySig(item), ctx);
         break;
+    case ElementType::LAYOUT_BREAK: layout(toLayoutBreak(item), ctx);
+        break;
     case ElementType::LET_RING:     layout(toLetRing(item), ctx);
         break;
     case ElementType::MARKER:       layout(toMarker(item), ctx);
@@ -1061,6 +1063,11 @@ void PaletteLayout::layout(KeySig* item, const Context& ctx)
     }
 }
 
+void PaletteLayout::layout(LayoutBreak* item, const Context&)
+{
+    UNUSED(item);
+}
+
 void PaletteLayout::layout(LetRing* item, const Context& ctx)
 {
     layoutLine(item, ctx);

src/palette/internal/palettelayout.h

@@ -68,6 +68,7 @@ class Jump;
 
 class KeySig;
 
+class LayoutBreak;
 class LetRing;
 class LetRingSegment;
 class SLine;
@@ -171,6 +172,7 @@ class PaletteLayout
 
     static void layout(engraving::KeySig* item, const Context& ctx);
 
+    static void layout(engraving::LayoutBreak* item, const Context& ctx);
     static void layout(engraving::LetRing* item, const Context& ctx);
 
     static void layout(engraving::NoteHead* item, const Context& ctx);