2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2004--2010 Han-Wen Nienhuys <hanwen@xs4all.nl>
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
20 #include "dimensions.hh"
21 #include "all-font-metrics.hh"
22 #include "output-def.hh"
23 #include "pango-font.hh"
25 PangoFontDescription
*
26 properties_to_pango_description (SCM chain
, Real text_size
)
28 SCM name
= ly_chain_assoc_get (ly_symbol2scm ("font-name"), chain
, SCM_BOOL_F
);
30 PangoFontDescription
*description
= 0;
31 if (scm_is_string (name
))
33 string name_str
= ly_scm2string (name
);
34 description
= pango_font_description_from_string (name_str
.c_str ());
38 SCM family
= ly_chain_assoc_get (ly_symbol2scm ("font-family"), chain
,
40 SCM variant
= ly_chain_assoc_get (ly_symbol2scm ("font-shape"), chain
,
43 SCM style
= ly_chain_assoc_get (ly_symbol2scm ("font-shape"), chain
,
45 SCM weight
= ly_chain_assoc_get (ly_symbol2scm ("font-series"), chain
,
49 = symbols_to_pango_font_description (family
, style
, variant
, weight
,
53 Real step
= robust_scm2double (ly_chain_assoc_get (ly_symbol2scm ("font-size"), chain
, SCM_BOOL_F
),
55 Real size
= text_size
* pow (2.0, step
/ 6.0);
57 pango_font_description_set_size (description
, gint (size
* PANGO_SCALE
));
62 select_pango_font (Output_def
*layout
, SCM chain
)
64 PangoFontDescription
*pfd
65 = properties_to_pango_description (chain
,
67 * layout
->get_dimension (ly_symbol2scm ("text-font-size")));
69 char *str
= pango_font_description_to_string (pfd
);
70 SCM scm_str
= scm_from_locale_string (str
);
72 pango_font_description_free (pfd
);
74 return find_pango_font (layout
, scm_str
, 1.0);
78 symbol_to_pango_style (SCM style
)
80 PangoStyle pstyle
= PANGO_STYLE_NORMAL
;
81 if (style
== ly_symbol2scm ("italic"))
82 pstyle
= PANGO_STYLE_ITALIC
;
83 else if (style
== ly_symbol2scm ("oblique")
84 || style
== ly_symbol2scm ("slanted"))
85 pstyle
= PANGO_STYLE_OBLIQUE
;
91 symbol_to_pango_variant (SCM variant
)
93 PangoVariant pvariant
= PANGO_VARIANT_NORMAL
;
94 if (variant
== ly_symbol2scm ("caps"))
95 pvariant
= PANGO_VARIANT_SMALL_CAPS
;
100 symbol_to_pango_weight (SCM weight
)
102 PangoWeight pw
= PANGO_WEIGHT_NORMAL
;
103 if (weight
== ly_symbol2scm ("bold"))
104 pw
= PANGO_WEIGHT_BOLD
;
105 if (weight
== ly_symbol2scm ("heavy"))
106 pw
= PANGO_WEIGHT_HEAVY
;
107 if (weight
== ly_symbol2scm ("ultrabold"))
108 pw
= PANGO_WEIGHT_ULTRABOLD
;
109 if (weight
== ly_symbol2scm ("light"))
110 pw
= PANGO_WEIGHT_LIGHT
;
111 if (weight
== ly_symbol2scm ("ultralight"))
112 pw
= PANGO_WEIGHT_ULTRALIGHT
;
118 symbol_to_pango_stretch (SCM
) // stretch)
120 PangoStretch ps
= PANGO_STRETCH_NORMAL
;
125 PANGO_STRETCH_ULTRA_CONDENSED,
126 PANGO_STRETCH_EXTRA_CONDENSED,
127 PANGO_STRETCH_CONDENSED,
128 PANGO_STRETCH_SEMI_CONDENSED,
130 PANGO_STRETCH_SEMI_EXPANDED,
131 PANGO_STRETCH_EXPANDED,
132 PANGO_STRETCH_EXTRA_EXPANDED,
133 PANGO_STRETCH_ULTRA_EXPANDED
138 PangoFontDescription
*
139 symbols_to_pango_font_description (SCM family
,
145 PangoFontDescription
*description
= pango_font_description_new ();
147 string family_str
= "roman";
148 if (scm_is_symbol (family
))
149 family_str
= ly_symbol2string (family
);
150 else if (scm_is_string (family
))
151 family_str
= ly_scm2string (family
);
153 pango_font_description_set_family (description
,
154 family_str
.c_str ());
155 pango_font_description_set_style (description
,
156 symbol_to_pango_style (style
));
157 pango_font_description_set_variant (description
,
158 symbol_to_pango_variant (variant
));
159 pango_font_description_set_weight (description
,
160 symbol_to_pango_weight (weight
));
161 pango_font_description_set_stretch (description
,
162 symbol_to_pango_stretch (stretch
));