Keep a staff alive with multiple layers

[lilypond.git] / lily / stencil.cc

diff --git a/lily/stencil.cc b/lily/stencil.cc
index 987a879053dd808f7775c4b52ae94eb1d7438b09..5e568c98dbd8efb38dd963f15a8313a242759b0d 100644 (file)
--- a/lily/stencil.cc
+++ b/lily/stencil.cc
@@ -44,7 +44,7 @@ Stencil::mark_smob () const
   return expr_;
 }
 
-const char Stencil::type_p_name_[] = "ly:stencil?";
+const char * const Stencil::type_p_name_ = "ly:stencil?";
 
 Interval
 Stencil::extent (Axis a) const
@@ -80,7 +80,7 @@ Stencil::extent_box () const
 void
 Stencil::rotate (Real a, Offset off)
 {
-  rotate_degrees (a * 180 / M_PI, off);
+  rotate_degrees (a, off);
 }
 
 /*
@@ -104,10 +104,10 @@ Stencil::rotate_degrees_absolute (Real a, Offset absolute_off)
    *         *this = rotated()
    */
 
-  expr_ = scm_list_n (ly_symbol2scm ("rotate-stencil"),
+  expr_ = scm_list_3 (ly_symbol2scm ("rotate-stencil"),
                       scm_list_2 (scm_from_double (a),
                                   scm_cons (scm_from_double (x), scm_from_double (y))),
-                      expr_, SCM_UNDEFINED);
+                      expr_);
 
   /*
    * Calculate the new bounding box
@@ -121,7 +121,7 @@ Stencil::rotate_degrees_absolute (Real a, Offset absolute_off)
   pts.push_back (Offset (shifted_box.x ().at (RIGHT), shifted_box.y ().at (UP)));
   pts.push_back (Offset (shifted_box.x ().at (LEFT), shifted_box.y ().at (UP)));
 
-  const Offset rot = complex_exp (Offset (0, a * M_PI / 180.0));
+  const Offset rot (offset_directed (a));
   dim_.set_empty ();
   for (vsize i = 0; i < pts.size (); i++)
     dim_.add_point (pts[i] * rot + absolute_off);
@@ -167,9 +167,9 @@ Stencil::translate (Offset o)
     }
 
   if (!scm_is_null (expr_))
-    expr_ = scm_list_n (ly_symbol2scm ("translate-stencil"),
+    expr_ = scm_list_3 (ly_symbol2scm ("translate-stencil"),
                         ly_offset2scm (o),
-                        expr_, SCM_UNDEFINED);
+                        expr_);
   dim_.translate (o);
 }