source file of the GNU LilyPond music typesetter
- (c) 2000--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 2000--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
/*
Ugh: why the defaults?
*/
- 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);
+ SCM defaults = me->get_paper ()->lookup_variable (ly_symbol2scm ("font-defaults"));
+ SCM ch = me->get_property_alist_chain (defaults);
return ch;
}
+
+MAKE_SCHEME_CALLBACK(Font_interface, get_property_alist_chain, 1);
+SCM
+Font_interface::get_property_alist_chain (SCM grob)
+{
+ Grob * g = unsmob_grob (grob);
+ SCM_ASSERT_TYPE(g, grob, SCM_ARG1, __FUNCTION__, "grob");
+ return font_alist_chain (g);
+}
+
/*
todo: split up this func, reuse in text_item?
*/
}
-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);
SCM_ASSERT_TYPE(gr, grob, SCM_ARG1, __FUNCTION__, "grob");
return Font_interface::get_default_font (gr)->self_scm ();
}
-SCM
-ly_font_interface_get_font (SCM grob, SCM alist)
+LY_DEFINE(ly_font_interface_get_font,"ly:get-font", 2, 0, 0,
+ (SCM grob, SCM chain),
+ "Return a font metric satisfying the font-qualifiers in the alist chain @var{chain}.\n"
+"\n"
+"The font object represents the metric information of a font. Every font\n"
+"that is loaded into LilyPond can be accessed via Scheme. \n"
+"\n"
+"LilyPond only needs to know the dimension of glyph to be able to process\n"
+"them. This information is stored in font metric files. LilyPond can read\n"
+"two types of font-metrics: @TeX{} Font Metric files (TFM files) and\n"
+"Adobe Font Metric files (AFM files). LilyPond will always try to load\n"
+"AFM files first since they are more versatile.\n"
+"\n"
+"An alist chain is a list of alists.\n")
{
Grob * gr = unsmob_grob (grob);
SCM_ASSERT_TYPE(gr, grob, SCM_ARG1, __FUNCTION__, "grob");
- Font_metric*fm=
- Font_interface::get_font (gr, gh_cons (alist,
- Font_interface::font_alist_chain (gr)));
-
+ Font_metric*fm = Font_interface::get_font (gr, chain);
return fm->self_scm();
}
-
Font_metric *
Font_interface::get_font (Grob *me, SCM chain)
{
if (!gh_string_p (name))
{
- SCM ss = me->paper_l ()->style_sheet_;
-
- SCM proc = ly_cdr (scm_assoc (ly_symbol2scm ("properties-to-font"),
- ss));
+ Paper_def * p = me->get_paper ();
- SCM fonts = ly_cdr (scm_assoc (ly_symbol2scm ("fonts"), ss));
+ SCM proc = p->lookup_variable (ly_symbol2scm ("properties-to-font"));
+ SCM fonts = p->lookup_variable (ly_symbol2scm ("fonts"));
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;
+ SCM mag = ly_assoc_chain (ly_symbol2scm ("font-magnification"), chain);
+
+ Real rmag = gh_pair_p (mag) && gh_number_p (gh_cdr (mag))
+ ? gh_scm2double (gh_cdr (mag)) : 1.0;
- Font_metric *fm = me->paper_l ()->find_font (name, rmag);
+ Font_metric *fm = me->get_paper ()->find_font (name, rmag);
return fm;
}
Font_interface::add_style (Grob* me, SCM style, SCM chain)
{
assert (gh_symbol_p (style));
-
- SCM sheet = me->paper_l ()->style_sheet_;
- SCM style_alist = ly_cdr (scm_assoc (ly_symbol2scm ("style-alist"), sheet));
+ SCM style_alist = me->get_paper ()->lookup_variable (ly_symbol2scm ("style-alist"));
SCM entry = scm_assoc (style, style_alist);
if (gh_pair_p (entry))
{
*/
-static SCM shape_sym, family_sym, series_sym, rel_sz_sym, design_sz_sym, wild_sym;
+static SCM shape_sym, family_sym, series_sym, rel_str0_sym, design_str0_sym, wild_sym;
static void
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"));
+ rel_str0_sym = scm_permanent_object (ly_symbol2scm ("font-relative-size"));
+ design_str0_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);
- scm_c_define_gsubr ("ly-get-font", 2, 0, 0,
- (Scheme_function_unknown) ly_font_interface_get_font);
}
+ADD_SCM_INIT_FUNC(fi_init_syms, init_syms);
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
SCM series = SCM_BOOL_F;
- SCM point_sz = ly_assoc_chain (design_sz_sym, alist_chain);
- SCM rel_sz = SCM_BOOL_F;
+ SCM point_str0 = ly_assoc_chain (design_str0_sym, alist_chain);
+ SCM rel_str0 = SCM_BOOL_F;
shape = ly_assoc_chain (shape_sym, alist_chain);
family = ly_assoc_chain (family_sym, alist_chain);
series = ly_cdr (series);
- if (gh_pair_p (point_sz))
- point_sz = ly_cdr (point_sz);
+ if (gh_pair_p (point_str0))
+ point_str0 = ly_cdr (point_str0);
else
{
- rel_sz = ly_assoc_chain (rel_sz_sym, alist_chain);
- if (gh_pair_p (rel_sz))
- rel_sz = ly_cdr (rel_sz);
+ rel_str0 = ly_assoc_chain (rel_str0_sym, alist_chain);
+ if (gh_pair_p (rel_str0))
+ rel_str0 = ly_cdr (rel_str0);
}
for (SCM s = fonts ; gh_pair_p (s); s = ly_cdr (s))
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))
+ if (point_str0 == SCM_BOOL_F && !wild_compare (ly_car (qlist), rel_str0))
continue;
SCM qname = ly_cdar (s);
}
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_write (scm_list_n (point_str0, shape, series , family, rel_str0,
+ SCM_UNDEFINED), scm_current_error_port ());
scm_flush (scm_current_error_port ());
- return ly_str02scm ("cmr10");
+ return scm_makfrom0str ("cmr10");
}
+
+
+
+ADD_INTERFACE (Font_interface, "font-interface",
+ "Any symbol that is typeset through fixed sets of glyphs (ie. fonts)",
+ "font-magnification font-style font font-series font-shape font-family font-name font-design-size font-relative-size");
projects / lilypond.git / blobdiff