/*
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);
SCM
Breathing_sign::brew_molecule (SCM smob)
+{
+ 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;
+
+ 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)
+{
+ 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;
- // todo: cfg'able.
- Interval i1 (0, space / 6), i2 (-space / 2, space / 2);
- Box b (i1, i2);
+ Real blotdiameter = me->get_paper ()->get_var ("blotdiameter");
- return Lookup::filledbox (b).smobbed_copy ();
+ /*
+ * 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 ();
+}
+
+/*
+ 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_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);
return gh_double2scm (inter_f * sz * d);
}
-void
-Breathing_sign::set_interface (Grob *b)
-{
- Staff_symbol_referencer::set_interface (b);
-
-}
+ADD_INTERFACE(Breathing_sign, "breathing-sign-interface",
+ "A breathing sign.",
+ "direction");
projects / lilypond.git / blobdiff