source file of the GNU LilyPond music typesetter
- (c) 2000--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 2000--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "warn.hh"
-/*
- TODO revise font handling.
-
-
-* relative sizes should relate to staff-space, eg. font-staff-space
-= 1.2 ^ relative-size
-
-* If a relative size is given, lily should magnify the closest
-design size font to match that. (ie. fonts should have variable
-scaling)
-
-(this requires that fonts are stored as (filename , designsize))
-
-
-
- */
-
-SCM
-Font_interface::font_alist_chain (Grob *me)
-{
- SCM defaults = ly_cdr (scm_assoc (ly_symbol2scm ("font-defaults"),
- me->paper_l ()->style_sheet_));
-
- SCM ch = scm_list_n (me->mutable_property_alist_,
- me->immutable_property_alist_,
- defaults,
- SCM_UNDEFINED);
-
- return ch;
-}
-
/*
todo: split up this func, reuse in text_item?
*/
if (fm)
return fm;
- fm = get_font (me, font_alist_chain (me));
+ fm = select_font (me->get_paper (), font_alist_chain (me));
me->set_grob_property ("font", fm->self_scm ());
return fm;
}
-SCM
-ly_font_interface_get_default_font (SCM grob)
+LY_DEFINE(ly_font_interface_get_default_font,
+ "ly:get-default-font", 1 , 0, 0,
+ (SCM grob), "Return the default font for grob @var{gr}.")
{
Grob * gr = unsmob_grob (grob);
-
- if (!gr)
- {
- warning ("ly_font_interface_get_default_font (): invalid argument");
- return SCM_UNDEFINED;
- }
+ SCM_ASSERT_TYPE(gr, grob, SCM_ARG1, __FUNCTION__, "grob");
return Font_interface::get_default_font (gr)->self_scm ();
}
-Font_metric *
-Font_interface::get_font (Grob *me, SCM chain)
-{
- SCM name = me->get_grob_property ("font-name");
-
- if (!gh_string_p (name))
- {
- SCM ss = me->paper_l ()->style_sheet_;
-
- SCM proc = ly_cdr (scm_assoc (ly_symbol2scm ("properties-to-font"),
- ss));
-
- SCM fonts = ly_cdr (scm_assoc (ly_symbol2scm ("fonts"), ss));
-
- assert (gh_procedure_p (proc));
- name = gh_call2 (proc, fonts, chain);
- }
-
- SCM mag = me->get_grob_property ("font-magnification");
- Real rmag = gh_number_p (mag) ? gh_scm2double (mag) : 1.0;
-
- Font_metric *fm = me->paper_l ()->find_font (name, rmag);
- return fm;
-}
-
SCM
-Font_interface::add_style (Grob* me, SCM style, SCM chain)
+Font_interface::font_alist_chain (Grob*g)
{
- assert (gh_symbol_p (style));
+ SCM defaults = g->get_paper ()->lookup_variable (ly_symbol2scm ("font-defaults"));
- SCM sheet = me->paper_l ()->style_sheet_;
-
- SCM style_alist = ly_cdr (scm_assoc (ly_symbol2scm ("style-alist"), sheet));
- SCM entry = scm_assoc (style, style_alist);
- if (gh_pair_p (entry))
- {
- chain = gh_cons (ly_cdr (entry), chain);
- }
- return chain;
+ return g->get_property_alist_chain (defaults);
}
-/*
-SCM routines:
-
-Interpreting music...
-MIDI output to wtk1-fugue2.midi...
-Track ...
-
-real 0m31.862s
-user 0m29.110s
-sys 0m0.260s
-
-real 0m26.964s
-user 0m24.850s
-sys 0m0.280s
-
-
-so a 14% speedup.
-
-*/
-
-static SCM shape_sym, family_sym, series_sym, rel_sz_sym, design_sz_sym, wild_sym;
-
-
-static void
-init_syms ()
-{
- shape_sym = scm_permanent_object (ly_symbol2scm ("font-shape"));
- family_sym = scm_permanent_object (ly_symbol2scm ("font-family"));
- series_sym = scm_permanent_object (ly_symbol2scm ("font-series"));
- rel_sz_sym = scm_permanent_object (ly_symbol2scm ("font-relative-size"));
- design_sz_sym = scm_permanent_object (ly_symbol2scm ("font-design-size"));
- wild_sym = scm_permanent_object (ly_symbol2scm ("*"));
-
- scm_c_define_gsubr ("ly-get-default-font", 1 , 0, 0,
- (Scheme_function_unknown) ly_font_interface_get_default_font);
-}
-
-
-bool
-Font_interface::wild_compare (SCM field_val, SCM val)
-{
- return (val == SCM_BOOL_F || field_val == wild_sym || field_val == val);
-}
-
-ADD_SCM_INIT_FUNC (Font_interface_syms,init_syms);
-
-
-MAKE_SCHEME_CALLBACK (Font_interface,properties_to_font_name,2);
-SCM
-Font_interface::properties_to_font_name (SCM fonts, SCM alist_chain)
-{
- SCM shape = SCM_BOOL_F;
- SCM family = SCM_BOOL_F;
- SCM series = SCM_BOOL_F;
- SCM point_sz = ly_assoc_chain (design_sz_sym, alist_chain);
- SCM rel_sz = SCM_BOOL_F;
-
- shape = ly_assoc_chain (shape_sym, alist_chain);
- family = ly_assoc_chain (family_sym, alist_chain);
- series = ly_assoc_chain (series_sym, alist_chain);
- if (gh_pair_p (shape))
- shape = ly_cdr (shape);
- if (gh_pair_p (family))
- family = ly_cdr (family);
- if (gh_pair_p (series))
- series = ly_cdr (series);
-
- if (gh_pair_p (point_sz))
- point_sz = ly_cdr (point_sz);
- else
- {
- rel_sz = ly_assoc_chain (rel_sz_sym, alist_chain);
- if (gh_pair_p (rel_sz))
- rel_sz = ly_cdr (rel_sz);
- }
-
- for (SCM s = fonts ; gh_pair_p (s); s = ly_cdr (s))
- {
- SCM qlist = ly_caar (s);
-
- if (!wild_compare (scm_list_ref (qlist, gh_int2scm (1)), series))
- continue;
- if (!wild_compare (scm_list_ref (qlist, gh_int2scm (2)), shape))
- continue;
- if (!wild_compare (scm_list_ref (qlist, gh_int2scm (3)), family))
- continue;
-
- if (point_sz == SCM_BOOL_F && !wild_compare (ly_car (qlist), rel_sz))
- continue;
-
- SCM qname = ly_cdar (s);
- return qname;
- }
-
- warning (_ ("couldn't find any font satisfying "));
- scm_write (scm_list_n (point_sz, shape, series , family, rel_sz, SCM_UNDEFINED), scm_current_error_port ());
- scm_flush (scm_current_error_port ());
-
- return ly_str02scm ("cmr10");
-
-}
+ADD_INTERFACE (Font_interface, "font-interface",
+ "Any symbol that is typeset through fixed sets of glyphs (ie. fonts)",
+ "font-magnification font font-series font-shape "
+ "font-family font-name font-size");
projects / lilypond.git / blobdiff