2 font-interface.cc -- implement Font_interface
4 source file of the GNU LilyPond music typesetter
6 (c) 2000--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "all-font-metrics.hh"
11 #include "font-metric.hh"
12 #include "font-interface.hh"
14 #include "paper-def.hh"
19 Font_interface::font_alist_chain (Grob *me)
21 SCM defaults = gh_cdr (scm_assoc (ly_symbol2scm ("font-defaults"),
22 me->paper_l ()->style_sheet_ ));
24 SCM ch = gh_list (me->mutable_property_alist_,
25 me->immutable_property_alist_,
33 todo: split up this func, reuse in text_item?
36 Font_interface::get_default_font (Grob*me)
38 Font_metric * fm = unsmob_metrics (me->get_grob_property ("font"));
42 fm = get_font (me, font_alist_chain (me));
43 me->set_grob_property ("font", fm->self_scm ());
49 ly_font_interface_get_default_font (SCM grob)
51 Grob * gr = unsmob_grob (grob);
55 warning ("ly_font_interface_get_default_font (): invalid argument");
59 return Font_interface::get_default_font (gr)->self_scm ();
63 Font_interface::get_font (Grob *me, SCM chain)
66 SCM ss = me->paper_l ()->style_sheet_;
68 SCM proc = gh_cdr (scm_assoc (ly_symbol2scm ("properties-to-font"),
71 SCM fonts = gh_cdr (scm_assoc (ly_symbol2scm ("fonts"), ss));
73 assert (gh_procedure_p (proc));
74 SCM font_name = gh_call2 (proc, fonts, chain);
76 Font_metric *fm = me->paper_l ()->find_font (font_name, 1.0);
81 Font_interface::add_style (Grob* me, SCM style, SCM chain)
83 assert (gh_symbol_p (style));
85 SCM sheet = me->paper_l ()->style_sheet_;
87 SCM style_alist = gh_cdr (scm_assoc (ly_symbol2scm ("style-alist"), sheet));
88 SCM entry = scm_assoc (style, style_alist);
89 if (gh_pair_p (entry))
91 chain = gh_cons (gh_cdr (entry), chain);
100 MIDI output to wtk1-fugue2.midi...
116 static SCM name_sym, shape_sym, family_sym, series_sym, rel_sz_sym, pt_sz_sym, wild_sym;
122 name_sym = scm_permanent_object (ly_symbol2scm ("font-name"));
123 shape_sym = scm_permanent_object (ly_symbol2scm ("font-shape"));
124 family_sym = scm_permanent_object (ly_symbol2scm ("font-family"));
125 series_sym = scm_permanent_object (ly_symbol2scm ("font-series"));
126 rel_sz_sym = scm_permanent_object (ly_symbol2scm ("font-relative-size"));
127 pt_sz_sym = scm_permanent_object (ly_symbol2scm ("font-point-size"));
128 wild_sym = scm_permanent_object (ly_symbol2scm ("*"));
130 scm_make_gsubr ("ly-get-default-font", 1 , 0, 0, (Scheme_function_unknown) ly_font_interface_get_default_font);
135 Font_interface::wild_compare(SCM field_val, SCM val)
137 return (val == SCM_BOOL_F || field_val == wild_sym || field_val == val);
140 ADD_SCM_INIT_FUNC(Font_interface_syms,init_syms);
143 MAKE_SCHEME_CALLBACK(Font_interface,properties_to_font_name,2);
145 Font_interface::properties_to_font_name (SCM fonts, SCM alist_chain)
147 SCM name = ly_assoc_chain (name_sym, alist_chain);
149 SCM shape = SCM_BOOL_F;
150 SCM family = SCM_BOOL_F;
151 SCM series = SCM_BOOL_F;
154 SCM point_sz = ly_assoc_chain (pt_sz_sym, alist_chain);
155 SCM rel_sz = SCM_BOOL_F;
157 if (!gh_pair_p (name))
159 shape = ly_assoc_chain (shape_sym, alist_chain);
160 family = ly_assoc_chain (family_sym, alist_chain);
161 series = ly_assoc_chain (series_sym, alist_chain);
163 if (gh_pair_p (shape))
164 shape = gh_cdr (shape);
165 if (gh_pair_p (family))
166 family = gh_cdr (family);
167 if (gh_pair_p (series))
168 series = gh_cdr (series);
171 name = gh_cdr (name);
174 if (gh_pair_p (point_sz))
175 point_sz = gh_cdr (point_sz);
178 rel_sz = ly_assoc_chain (rel_sz_sym, alist_chain);
179 if (gh_pair_p (rel_sz))
180 rel_sz = gh_cdr (rel_sz);
183 for (SCM s = fonts ; gh_pair_p (s); s = gh_cdr (s))
185 SCM qlist = gh_caar (s);
187 if (name != SCM_BOOL_F)
189 if (!wild_compare(scm_list_ref (qlist, gh_int2scm (4)), name))
194 if (!wild_compare(scm_list_ref (qlist, gh_int2scm (1)), series))
196 if (!wild_compare(scm_list_ref (qlist, gh_int2scm (2)), shape))
198 if (!wild_compare(scm_list_ref (qlist, gh_int2scm (3)), family))
202 if (point_sz != SCM_BOOL_F)
204 // This if statement will always be true since name must
205 // be SCM_BOOL_F here, right? /MB
206 if (!wild_compare(scm_list_ref (qlist, gh_int2scm (4)), name))
211 if (!wild_compare(gh_car (qlist), rel_sz))
216 SCM qname = gh_cdar (s);
220 warning (_("couldn't find any font satisfying ") );
221 scm_write (gh_list (name, point_sz, shape, series , family, rel_sz, SCM_UNDEFINED), scm_current_error_port ());
222 scm_flush(scm_current_error_port ());
224 return ly_str02scm ("cmr10");