2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2002--2011 Juergen Reuter <reuter@ipd.uka.de>,
5 Pal Benko <benkop@freestart.hu>
7 LilyPond is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 LilyPond is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
21 #include "mensural-ligature.hh"
23 #include "font-interface.hh"
24 #include "international.hh"
27 #include "note-head.hh"
28 #include "output-def.hh"
29 #include "staff-symbol-referencer.hh"
33 draws one half a flexa, i.e. a portion corresponding to a single note.
34 this way coloration of the two notes building up the flexa can be
35 handled independently.
37 * TODO: divide this function into mensural and neo-mensural style.
39 * TODO: move this function to class Lookup?
48 Real staff_space = Staff_symbol_referencer::staff_space (me);
51 The thickness of the horizontal lines of the flexa shape
52 should be equal to that of the horizontal lines of the
53 neomensural brevis note head (see mf/parmesan-heads.mf).
55 Real const horizontal_line_thickness = staff_space * 0.35;
57 // URGH! vertical_line_thickness is adjustable (via thickness
58 // property), while horizontal_line_thickness is constant.
59 // Maybe both should be adjustable independently?
61 Real height = staff_space - horizontal_line_thickness;
64 = robust_scm2double (me->get_property ("flexa-interval"), 0.0);
65 Real slope = (interval / 2.0 * staff_space) / width;
67 // Compensate optical illusion regarding vertical position of left
68 // and right endings due to slope.
69 Real ypos_correction = -0.1 * staff_space * sign (slope);
70 Real slope_correction = 0.2 * staff_space * sign (slope);
71 Real corrected_slope = slope + slope_correction / width;
73 if (solid) // colorated flexae
75 stencil = Lookup::beam (corrected_slope, width * 0.5, staff_space, 0.0);
79 stencil = Lookup::beam (corrected_slope, thickness, height, 0.0);
82 stencil.translate_axis (width * 0.5 - thickness, X_AXIS);
83 stencil.translate_axis (corrected_slope * (width * 0.5 - thickness),
88 = Lookup::beam (corrected_slope, width * 0.5, horizontal_line_thickness,
90 bottom_edge.translate_axis (-0.5 * height, Y_AXIS);
91 stencil.add_stencil (bottom_edge);
94 = Lookup::beam (corrected_slope, width * 0.5, horizontal_line_thickness,
96 top_edge.translate_axis (+0.5 * height, Y_AXIS);
97 stencil.add_stencil (top_edge);
101 stencil.translate_axis (ypos_correction, Y_AXIS);
104 stencil.translate_axis (0.5 * thickness, X_AXIS);
106 stencil.translate_axis (interval / -4.0 * staff_space, Y_AXIS);
113 internal_brew_primitive (Grob *me)
115 SCM primitive_scm = me->get_property ("primitive");
116 if (primitive_scm == SCM_EOL)
118 programming_error ("Mensural_ligature:"
119 " undefined primitive -> ignoring grob");
120 return Lookup::blank (Box (Interval (0, 0), Interval (0, 0)));
122 int primitive = scm_to_int (primitive_scm);
125 Real thickness = 0.0;
127 Real flexa_width = 0.0;
128 Real staff_space = Staff_symbol_referencer::staff_space (me);
131 = me->get_property ("style") == ly_symbol2scm ("blackpetrucci");
133 = me->get_property ("style") == ly_symbol2scm ("semipetrucci");
135 if (primitive & MLP_ANY)
137 thickness = robust_scm2double (me->get_property ("thickness"), .14);
138 width = robust_scm2double (me->get_property ("head-width"), staff_space);
140 if (primitive & MLP_FLEXA)
141 flexa_width = robust_scm2double (me->get_property ("flexa-width"), 2.0)
144 int const note_shape = primitive & MLP_ANY;
149 return Lookup::blank (Box (Interval (0, 0), Interval (0, 0)));
150 case MLP_LONGA: // mensural brevis head with right cauda
151 out = Font_interface::get_default_font (me)->find_by_name
152 (color ? "noteheads.sM2blackmensural"
153 : semi ? "noteheads.sM2semimensural" : "noteheads.sM2mensural");
155 case MLP_BREVIS: // mensural brevis head
156 out = Font_interface::get_default_font (me)->find_by_name
157 (color ? "noteheads.sM1blackmensural"
158 : semi ? "noteheads.sM1semimensural" : "noteheads.sM1mensural");
160 case MLP_MAXIMA: // should be mensural maxima head without stem
161 out = Font_interface::get_default_font (me)->find_by_name
162 (color ? "noteheads.sM3blackligmensural"
163 : semi ? "noteheads.sM3semiligmensural" : "noteheads.sM3ligmensural");
165 case MLP_FLEXA_BEGIN:
167 out = brew_flexa (me, color, flexa_width, thickness,
168 note_shape == MLP_FLEXA_BEGIN);
171 programming_error (_ ("Mensural_ligature:"
172 " unexpected case fall-through"));
173 return Lookup::blank (Box (Interval (0, 0), Interval (0, 0)));
177 = (me->layout ()->get_dimension (ly_symbol2scm ("blot-diameter")));
179 if (primitive & MLP_STEM)
182 Real y_bottom = 0.0, y_top = 3.0 * staff_space;
184 if (primitive & MLP_DOWN)
190 Interval x_extent (0, thickness);
191 Interval y_extent (y_bottom, y_top);
192 Box join_box (x_extent, y_extent);
194 Stencil join = Lookup::round_filled_box (join_box, blotdiameter);
195 out.add_stencil (join);
198 if (to_boolean (me->get_property ("add-join")))
200 int join_right = scm_to_int (me->get_property ("delta-position"));
203 Real y_top = join_right * 0.5 * staff_space;
212 if the previous note is longa-shaped,
213 the joining line may hide the stem, so made it longer
214 to serve as stem as well
216 if (primitive & MLP_LONGA)
218 instead of 3.0 the length of a longa stem should be used
219 Font_interface::get_default_font (???)->find_by_name
220 ("noteheads.s-2mensural").extent (Y_AXIS).length () * 0.5
222 y_bottom -= 3.0 * staff_space;
225 Interval x_extent (width - thickness, width);
226 Interval y_extent (y_bottom, y_top);
227 Box join_box (x_extent, y_extent);
228 Stencil join = Lookup::round_filled_box (join_box, blotdiameter);
230 out.add_stencil (join);
233 programming_error (_ ("Mensural_ligature: (join_right == 0)"));
236 #if 0 /* what happend with the ledger lines? */
237 int pos = Staff_symbol_referencer::get_rounded_position (me);
238 if (primitive & MLP_FLEXA)
241 add_ledger_lines (me, &out, pos, 0.5 * delta_pitch, ledger_take_space);
248 MAKE_SCHEME_CALLBACK (Mensural_ligature, brew_ligature_primitive, 1);
250 Mensural_ligature::brew_ligature_primitive (SCM smob)
252 Grob *me = unsmob_grob (smob);
253 return internal_brew_primitive (me).smobbed_copy ();
256 MAKE_SCHEME_CALLBACK (Mensural_ligature, print, 1);
258 Mensural_ligature::print (SCM)
263 ADD_INTERFACE (Mensural_ligature,
264 "A mensural ligature.",