X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fbreathing-sign.cc;h=2936777e1e93d9244171e52aa666d1c01e94efd5;hb=7979d8adaa8393daefd6585534221a93dd526758;hp=9861ac19c557004e0df2574a1c1a112785c3314b;hpb=8a28f0429e9ce4ce7258156d62261b939edd72d1;p=lilypond.git

diff --git a/lily/breathing-sign.cc b/lily/breathing-sign.cc
index 9861ac19c5..2936777e1e 100644
--- a/lily/breathing-sign.cc
+++ b/lily/breathing-sign.cc
@@ -1,52 +1,238 @@
 /*
   breathing_sign.cc -- implement Breathing_sign
 
-  Copyright (C) 1999 Michael Krause
+  (c)  1999--2003 Michael Krause
 
   written for the GNU LilyPond music typesetter
 
-TODO: --> see breathing-sign-engraver.cc
+  TODO: --> see breathing-sign-engraver.cc
 
+  Extensions for ancient notation (c)  2003 by Juergen Reuter
 */
-#include "staff-symbol-referencer.hh"
 
+#include "staff-symbol-referencer.hh"
+#include "directional-element-interface.hh"
 #include "breathing-sign.hh"
 #include "string.hh"
 #include "molecule.hh"
 #include "paper-def.hh"
 #include "lookup.hh"
-#include "debug.hh"
+
 #include "dimensions.hh"
 #include "direction.hh"
+#include "text-item.hh"
+#include "font-interface.hh"
 
+/*
+ * TODO: thickness should be a grob property (unit:
+ * stafflinethickness) rather than hardwired to (staff_space / 6).
+ */
 
-Breathing_sign::Breathing_sign ()
+MAKE_SCHEME_CALLBACK (Breathing_sign,brew_molecule,1);
+SCM 
+Breathing_sign::brew_molecule (SCM smob)
 {
-  set_direction (UP);
-  set_elt_property ("breakable", SCM_BOOL_T);
+  Grob *me = unsmob_grob (smob);
+  SCM text = me->get_grob_property ("text");
+  if (text == SCM_EOL)
+    return divisio_minima (smob);
+  SCM properties = Font_interface::font_alist_chain (me);
+  Molecule out;
+  out = Text_item::text2molecule (me, text, properties);
+  SCM space_scm = me->get_grob_property ("word-space");
+  if (gh_number_p (space_scm))
+    {
+      Molecule mol;
+      mol.set_empty (false);
+      out.add_at_edge (X_AXIS, RIGHT, mol, gh_scm2double (space_scm) *
+		       Staff_symbol_referencer::staff_space (me), 0);
+    }
+  return out.smobbed_copy ();
 }
 
+/*
+  Simplistic caesura.
+ */
+MAKE_SCHEME_CALLBACK (Breathing_sign,railtracks,1);
+SCM 
+Breathing_sign::railtracks (SCM smob)
+{
+  Grob * me = unsmob_grob (smob);
+  Real space = Staff_symbol_referencer::staff_space (me);
+  Real th = me->get_paper ()->get_var ("linethickness");
+  SCM lt =  me->get_grob_property ("thickness");
+  if (gh_number_p (lt))
+    th *= gh_scm2double (lt);
+  
+  Offset x1 (0, -space);
+  Offset x2 (space / 3, space);
+  Molecule l1 (Lookup::line (th, x1, x2));
+  Molecule l2 (l1);
+  l2.translate_axis (space *0.6 , X_AXIS);
+  l1.add_molecule (l2);
+  return l1.smobbed_copy();
+}
 
+/*
+  Gregorian chant divisio minima.  (Actually, this was the original
+  breathing sign by Michael. -- jr)
+ */
+MAKE_SCHEME_CALLBACK (Breathing_sign,divisio_minima,1);
+SCM 
+Breathing_sign::divisio_minima (SCM smob)
+{
+  Grob *me = unsmob_grob (smob);
+  Real staff_space = Staff_symbol_referencer::staff_space (me);
+  Real staff_size;
+  Real thickness = me->get_paper ()->get_var ("linethickness");
+  SCM lt =  me->get_grob_property ("thickness");
+  if (gh_number_p (lt))
+    thickness *= gh_scm2double (lt);
+  if (Staff_symbol_referencer::get_staff_symbol (me))
+    {
+      staff_size = (Staff_symbol_referencer::line_count (me) - 1) * staff_space;
+    }
+  else
+    staff_size = 0.0;
 
-Molecule*
-Breathing_sign::do_brew_molecule_p () const
+  Real blotdiameter = me->get_paper ()->get_var ("blotdiameter");
+
+  /*
+   * Draw a small vertical line through the uppermost (or, depending
+   * on direction, lowermost) staff line.
+   */
+  Interval xdim (0, thickness);
+  Interval ydim (-0.5 * staff_space, +0.5 * staff_space);
+  Box b (xdim, ydim);
+  Molecule out = Lookup::roundfilledbox (b, blotdiameter);
+  return out.smobbed_copy ();
+}
+
+/*
+  Gregorian chant divisio maior.
+ */
+MAKE_SCHEME_CALLBACK (Breathing_sign,divisio_maior,1);
+SCM 
+Breathing_sign::divisio_maior (SCM smob)
 {
-  Staff_symbol_referencer_interface si (this);
-  
-  Real dl = si.staff_space();
-  Interval i1(0, dl / 6), i2(-dl / 2, dl / 2);
-  Box b(i1, i2);
+  Grob *me = unsmob_grob (smob);
+  Real staff_space = Staff_symbol_referencer::staff_space (me);
+  Real staff_size;
+  Real thickness = me->get_paper ()->get_var ("linethickness");
+  SCM lt =  me->get_grob_property ("thickness");
+  if (gh_number_p (lt))
+    thickness *= gh_scm2double (lt);
+  if (Staff_symbol_referencer::get_staff_symbol (me))
+    {
+      staff_size = (Staff_symbol_referencer::line_count (me) - 1) * staff_space;
+    }
+  else
+    staff_size = 0.0;
 
-  Molecule *output = new Molecule (lookup_l()->filledbox(b));
+  Real blotdiameter = me->get_paper ()->get_var ("blotdiameter");
 
-  return output;
+  /*
+   * Draw a vertical line that is vertically centered in the staff
+   * (just like a bar).  The height of this line should be a little
+   * more than half the size of the staff, such that the endings of
+   * the line are in the middle of a staff space.
+   */
+  int lines = Staff_symbol_referencer::line_count (me);
+  int height = lines / 2; // little more than half of staff size
+  if ((lines & 1) != (height & 1))
+    height++; // ensure endings are centered in staff space
+
+  Interval xdim (0, thickness);
+  Interval ydim (-0.5 * height, +0.5 * height);
+  Box b (xdim, ydim);
+  Molecule out = Lookup::roundfilledbox (b, blotdiameter);
+  return out.smobbed_copy ();
+}
+
+/*
+  Gregorian chant divisio maxima.
+ */
+MAKE_SCHEME_CALLBACK (Breathing_sign,divisio_maxima,1);
+SCM 
+Breathing_sign::divisio_maxima (SCM smob)
+{
+  Grob *me = unsmob_grob (smob);
+  Real staff_space = Staff_symbol_referencer::staff_space (me);
+  Real staff_size;
+  Real thickness = me->get_paper ()->get_var ("linethickness");
+  SCM lt =  me->get_grob_property ("thickness");
+  if (gh_number_p (lt))
+    thickness *= gh_scm2double (lt);
+  if (Staff_symbol_referencer::get_staff_symbol (me))
+    {
+      staff_size = (Staff_symbol_referencer::line_count (me) - 1) * staff_space;
+    }
+  else
+    staff_size = 0.0;
+
+  Real blotdiameter = me->get_paper ()->get_var ("blotdiameter");
+
+  // like a "|" type bar
+  Interval xdim (0, thickness);
+  Interval ydim (-0.5 * staff_size, +0.5 * staff_size);
+  Box b (xdim, ydim);
+  Molecule out = Lookup::roundfilledbox (b, blotdiameter);
+  return out.smobbed_copy ();
 }
 
-void
-Breathing_sign::do_post_processing()
+/*
+  Gregorian chant finalis.
+ */
+MAKE_SCHEME_CALLBACK (Breathing_sign,finalis,1);
+SCM 
+Breathing_sign::finalis (SCM smob)
 {
-  Real dl = Staff_symbol_referencer_interface (this).staff_space();
+  Grob *me = unsmob_grob (smob);
+  Real staff_space = Staff_symbol_referencer::staff_space (me);
+  Real staff_size;
+  Real thickness = me->get_paper ()->get_var ("linethickness");
+  SCM lt =  me->get_grob_property ("thickness");
+  if (gh_number_p (lt))
+    thickness *= gh_scm2double (lt);
+  if (Staff_symbol_referencer::get_staff_symbol (me))
+    {
+      staff_size = (Staff_symbol_referencer::line_count (me) - 1) * staff_space;
+    }
+  else
+    staff_size = 0.0;
+
+  Real blotdiameter = me->get_paper ()->get_var ("blotdiameter");
+
+  // like a "||" type bar
+  Interval xdim (0, thickness);
+  Interval ydim (-0.5 * staff_size, +0.5 * staff_size);
+  Box b (xdim, ydim);
+  Molecule line1 = Lookup::roundfilledbox (b, blotdiameter);
+  Molecule line2 (line1);
+  line2.translate_axis (0.5 * staff_space, X_AXIS);
+  line1.add_molecule (line2);
+
+  return line1.smobbed_copy ();
+}
+
+MAKE_SCHEME_CALLBACK (Breathing_sign,offset_callback,2);
+SCM
+Breathing_sign::offset_callback (SCM element_smob, SCM)
+{
+  Grob *me = unsmob_grob (element_smob);
+  
+  Direction d = Directional_element_interface::get (me);
+  if (!d)
+    {
+      d = UP;
+      Directional_element_interface::set (me, d);
+    }
 
-  translate_axis(2.0 * dl * get_direction (), Y_AXIS);
+  Real inter_f = Staff_symbol_referencer::staff_space (me)/2;
+  int sz = Staff_symbol_referencer::line_count (me)-1;
+  return gh_double2scm (inter_f * sz * d);
 }
 
+ADD_INTERFACE(Breathing_sign, "breathing-sign-interface",
+	      "A breathing sign.",
+	      "direction");