/*
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
+ Extensions for ancient notation (c) 2003 by Juergen Reuter
*/
#include "staff-symbol-referencer.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).
+ */
+
-MAKE_SCHEME_CALLBACK(Breathing_sign,brew_molecule,1);
-
+/*
+ Simplistic caesura.
+ */
+MAKE_SCHEME_CALLBACK (Breathing_sign,railtracks,1);
SCM
-Breathing_sign::brew_molecule (SCM smob)
+Breathing_sign::railtracks (SCM smob)
{
- Score_element * me = unsmob_element (smob);
+ Grob * me = unsmob_grob (smob);
Real space = Staff_symbol_referencer::staff_space (me);
+ Real th = me->get_paper ()->get_realvar (ly_symbol2scm ("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();
+}
- // todo: cfg'able.
- Interval i1(0, space / 6), i2(-space / 2, space / 2);
- Box b(i1, i2);
+/*
+ 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_realvar (ly_symbol2scm ("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;
- return me->lookup_l()->filledbox(b).create_scheme ();
+ Real blotdiameter = me->get_paper ()->get_realvar (ly_symbol2scm ("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::round_filled_box (b, blotdiameter);
+ return out.smobbed_copy ();
}
-MAKE_SCHEME_CALLBACK(Breathing_sign,offset_callback,2);
-SCM
-Breathing_sign::offset_callback (SCM element_smob, SCM axis)
+/*
+ Gregorian chant divisio maior.
+ */
+MAKE_SCHEME_CALLBACK (Breathing_sign,divisio_maior,1);
+SCM
+Breathing_sign::divisio_maior (SCM smob)
{
- Score_element *me = unsmob_element (element_smob);
- Axis a = (Axis) gh_scm2int (axis);
+ Grob *me = unsmob_grob (smob);
+ Real staff_space = Staff_symbol_referencer::staff_space (me);
+ Real staff_size;
+ Real thickness = me->get_paper ()->get_realvar (ly_symbol2scm ("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_realvar (ly_symbol2scm ("blotdiameter"));
+
+ /*
+ * 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::round_filled_box (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_realvar (ly_symbol2scm ("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_realvar (ly_symbol2scm ("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::round_filled_box (b, blotdiameter);
+ return out.smobbed_copy ();
+}
+
+/*
+ Gregorian chant finalis.
+ */
+MAKE_SCHEME_CALLBACK (Breathing_sign,finalis,1);
+SCM
+Breathing_sign::finalis (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_realvar (ly_symbol2scm ("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_realvar (ly_symbol2scm ("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::round_filled_box (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)
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);
+ return gh_double2scm (inter_f * sz * d);
}
-void
-Breathing_sign::set_interface (Score_element *b)
-{
- Staff_symbol_referencer::set_interface (b);
- b->add_offset_callback (Breathing_sign_offset_callback_proc,Y_AXIS);
-}
+ADD_INTERFACE(Breathing_sign, "breathing-sign-interface",
+ "A breathing sign.",
+ "direction");
projects / lilypond.git / blobdiff