-/*
- font-interface.cc -- implement Font_interface
-
- source file of the GNU LilyPond music typesetter
-
- (c) 2000--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
-
-#include "all-font-metrics.hh"
-#include "font-metric.hh"
-#include "font-interface.hh"
-#include "grob.hh"
-#include "paper-def.hh"
-#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 file is part of LilyPond, the GNU music typesetter.
-(this requires that fonts are stored as (filename , designsize))
+ Copyright (C) 2000--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
-
- */
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-SCM
-Font_interface::font_alist_chain (Grob *me)
-{
- /*
- Ugh: why the defaults?
- */
- SCM defaults = me->get_paper ()->lookup_variable (ly_symbol2scm ("font-defaults"));
-
- SCM ch = me->get_property_alist_chain (defaults);
- return ch;
-}
-
-/*
- todo: split up this func, reuse in text_item?
- */
-Font_metric *
-Font_interface::get_default_font (Grob*me)
-{
- Font_metric * fm = unsmob_metrics (me->get_grob_property ("font"));
- if (fm)
- return fm;
-
- fm = get_font (me, font_alist_chain (me));
- me->set_grob_property ("font", fm->self_scm ());
- return fm;
-}
-
-
-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 ();
-}
-
-LY_DEFINE(ly_font_interface_get_font,"ly-get-font", 2, 0, 0,
- (SCM grob, SCM alist),
- "Return a font metric satisfying the font-qualifiers in @var{alist}.
-
-
-The font object represents the metric information of a font. Every font
-that is loaded into LilyPond can be accessed via Scheme.
-
-LilyPond only needs to know the dimension of glyph to be able to process
-them. This information is stored in font metric files. LilyPond can read
-two types of font-metrics: @TeX{} Font Metric files (TFM files) and
-Adobe Font Metric files (AFM files). LilyPond will always try to load
-AFM files first since they are more versatile.
-
-")
-{
- 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)));
-
- return fm->self_scm();
-}
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "font-interface.hh"
+#include "all-font-metrics.hh"
+#include "output-def.hh"
+#include "warn.hh"
+#include "grob.hh"
+/* todo: split up this func, reuse in text_item? */
Font_metric *
-Font_interface::get_font (Grob *me, SCM chain)
+Font_interface::get_default_font (Grob *me)
{
- SCM name = me->get_grob_property ("font-name");
-
- if (!gh_string_p (name))
+ Font_metric *fm = Font_metric::unsmob (me->get_property ("font"));
+ if (!fm)
{
- Paper_def * p = me->get_paper ();
-
- SCM proc = p->lookup_variable (ly_symbol2scm ("properties-to-font"));
- SCM fonts = p->lookup_variable (ly_symbol2scm ("fonts"));
+ SCM chain = music_font_alist_chain (me);
- assert (gh_procedure_p (proc));
- name = gh_call2 (proc, fonts, chain);
+ fm = select_font (me->layout (), chain);
+ me->set_property ("font", fm->self_scm ());
}
-
- SCM mag = me->get_grob_property ("font-magnification");
- Real rmag = gh_number_p (mag) ? gh_scm2double (mag) : 1.0;
-
- Font_metric *fm = me->get_paper ()->find_font (name, rmag);
+
return fm;
}
SCM
-Font_interface::add_style (Grob* me, SCM style, SCM chain)
-{
- assert (gh_symbol_p (style));
-
- SCM style_alist = me->get_paper ()->lookup_variable (ly_symbol2scm ("style-alist"));
- SCM entry = scm_assoc (style, style_alist);
- if (gh_pair_p (entry))
- {
- chain = gh_cons (ly_cdr (entry), chain);
- }
- return chain;
-}
-
-/*
-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_str0_sym, design_str0_sym, wild_sym;
-
-
-static void
-init_syms ()
+Font_interface::music_font_alist_chain (Grob *g)
{
- 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_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 defaults
+ = g->layout ()->lookup_variable (ly_symbol2scm ("font-defaults"));
+ if (defaults == SCM_UNDEFINED)
+ defaults = SCM_EOL;
+ return g->get_property_alist_chain (defaults);
}
-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);
-}
-
-
-MAKE_SCHEME_CALLBACK (Font_interface,properties_to_font_name,2);
SCM
-Font_interface::properties_to_font_name (SCM fonts, SCM alist_chain)
+Font_interface::text_font_alist_chain (Grob *g)
{
- SCM shape = SCM_BOOL_F;
- SCM family = SCM_BOOL_F;
- SCM series = 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_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_str0))
- point_str0 = ly_cdr (point_str0);
- else
- {
- 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))
- {
- 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_str0 == SCM_BOOL_F && !wild_compare (ly_car (qlist), rel_str0))
- continue;
-
- SCM qname = ly_cdar (s);
- return qname;
- }
-
- warning (_ ("couldn't find any font satisfying "));
- 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 scm_makfrom0str ("cmr10");
-
+ SCM defaults
+ = g->layout ()->lookup_variable (ly_symbol2scm ("text-font-defaults"));
+ if (defaults == SCM_UNDEFINED)
+ defaults = SCM_EOL;
+ return g->get_property_alist_chain (defaults);
}
-
-
-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");
+ADD_INTERFACE (Font_interface,
+ "Any symbol that is typeset through fixed sets of glyphs,"
+ " (i.e., fonts).",
+
+ /* properties */
+ "font "
+ "font-encoding "
+ "font-family "
+ "font-name "
+ "font-series "
+ "font-shape "
+ "font-size "
+ );
projects / lilypond.git / blobdiff