Fixes a tuplet bracket bug caused by 32570e8ac85561afc1f59712301ee80c0d69d2b3.

Tuplet bracket positions were being calculated before beamed stem
positions were set.  This patch triggers the setting of stem positions
before the calculation of these brackets.

diff --git a/lily/tuplet-bracket.cc b/lily/tuplet-bracket.cc
index 67a00b4b2b86af0f8e46c617e78b25d02745271a..627d6fcfb04a961e531e7ee9aabd6bc3ae2afc34 100644 (file)
--- a/lily/tuplet-bracket.cc
+++ b/lily/tuplet-bracket.cc
@@ -556,14 +556,21 @@ Tuplet_bracket::calc_position_and_height (Grob *me_grob, Real *offset, Real *dy)
       Drul_array<Grob *> stems (Note_column::get_stem (columns[0]),
                                 Note_column::get_stem (columns.back ()));
 
-      Real lp = stems[LEFT]->extent (stems[LEFT], Y_AXIS)[get_grob_direction (stems[LEFT])]
-                + stems[LEFT]->get_parent (Y_AXIS)->relative_coordinate (commony, Y_AXIS);
-      Real rp = stems[RIGHT]->extent (stems[RIGHT], Y_AXIS)[get_grob_direction (stems[RIGHT])]
-                + stems[RIGHT]->get_parent (Y_AXIS)->relative_coordinate (commony, Y_AXIS);
-
-      *dy = rp - lp;
-      points.push_back (Offset (stems[LEFT]->relative_coordinate (commonx, X_AXIS) - x0, lp));
-      points.push_back (Offset (stems[RIGHT]->relative_coordinate (commonx, X_AXIS) - x0, rp));
+      Interval poss;
+      Direction side = LEFT;
+      do
+        {
+          // Trigger setting of stem lengths if necessary.
+          if (Grob *beam = Stem::get_beam (stems[side]))
+            (void) beam->get_property ("quantized-positions");
+          poss[side] = stems[side]->extent (stems[side], Y_AXIS)[get_grob_direction (stems[side])]
+                       + stems[side]->get_parent (Y_AXIS)->relative_coordinate (commony, Y_AXIS);
+        }
+      while (flip (&side) != LEFT);
+
+      *dy = poss[RIGHT] - poss[LEFT];
+      points.push_back (Offset (stems[LEFT]->relative_coordinate (commonx, X_AXIS) - x0, poss[LEFT]));
+      points.push_back (Offset (stems[RIGHT]->relative_coordinate (commonx, X_AXIS) - x0, poss[RIGHT]));
     }
   else
     {