X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fpango-select.cc;h=8091e466eebf379681ab767df4e39ae3852d0c78;hb=2bbacb364aa29041af9cbbbd32cfad2e8e387cb3;hp=71553a1a9164c70558419722701d5313d4e089a5;hpb=254f634d6e541adeea359a557ea9c9ad8860131c;p=lilypond.git diff --git a/lily/pango-select.cc b/lily/pango-select.cc index 71553a1a91..8091e466ee 100644 --- a/lily/pango-select.cc +++ b/lily/pango-select.cc @@ -1,79 +1,90 @@ /* - pango-select.cc -- implement lily font selection for Pango_fonts. + This file is part of LilyPond, the GNU music typesetter. - source file of the GNU LilyPond music typesetter + Copyright (C) 2004--2015 Han-Wen Nienhuys - (c) 2004 Han-Wen Nienhuys + 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. + + You should have received a copy of the GNU General Public License + along with LilyPond. If not, see . */ -#include +#include "dimensions.hh" #include "all-font-metrics.hh" +#include "libc-extension.hh" #include "output-def.hh" #include "pango-font.hh" -Font_metric * -select_pango_font (Output_def *layout, SCM chain) +PangoFontDescription * +properties_to_pango_description (SCM chain, Real text_size) { - SCM name = ly_chain_assoc (ly_symbol2scm ("font-name"), chain); + SCM name = ly_chain_assoc_get (ly_symbol2scm ("font-name"), chain, SCM_BOOL_F); PangoFontDescription *description = 0; - if (scm_is_pair (name) && scm_is_string (scm_cdr (name))) + if (scm_is_string (name)) { - String name_str = ly_scm2string (scm_cdr (name)); - description = pango_font_description_from_string (name_str.to_str0 ()); - - - Real step = robust_scm2double (ly_symbol2scm ("font-size"), 0.0); - Real size = layout->get_dimension (ly_symbol2scm ("text-font-size")) - * pow (2.0, step / 6.0); - pango_font_description_set_size (description, - gint (size * PANGO_SCALE)); + string name_str = ly_scm2string (name); + description = pango_font_description_from_string (name_str.c_str ()); } else { SCM family = ly_chain_assoc_get (ly_symbol2scm ("font-family"), chain, - SCM_BOOL_F); + SCM_BOOL_F); SCM variant = ly_chain_assoc_get (ly_symbol2scm ("font-shape"), chain, - SCM_BOOL_F); - + SCM_BOOL_F); + SCM style = ly_chain_assoc_get (ly_symbol2scm ("font-shape"), chain, - SCM_BOOL_F); + SCM_BOOL_F); SCM weight = ly_chain_assoc_get (ly_symbol2scm ("font-series"), chain, - SCM_BOOL_F); - - Real step = robust_scm2double (ly_symbol2scm ("font-size"), 0.0); - Real size = layout->get_dimension (ly_symbol2scm ("text-font-size")) - * pow (2.0, step / 6.0); + SCM_BOOL_F); description - = symbols_to_pango_font_description (family, style, variant, weight, - SCM_BOOL_F, - size); + = symbols_to_pango_font_description (family, style, variant, weight, + SCM_BOOL_F); } - Font_metric * fm = all_fonts_global->find_pango_font (description); + Real step = robust_scm2double (ly_chain_assoc_get (ly_symbol2scm ("font-size"), chain, SCM_BOOL_F), + 0.0); + Real size = text_size * pow (2.0, step / 6.0); - return find_scaled_font (layout, fm, 1.0, - ly_symbol2scm ("latin1"), - ly_symbol2scm ("latin1")); + pango_font_description_set_size (description, + gint (my_round (size * PANGO_SCALE))); + return description; } +Font_metric * +select_pango_font (Output_def *layout, SCM chain) +{ + PangoFontDescription *pfd + = properties_to_pango_description (chain, + point_constant + * layout->get_dimension (ly_symbol2scm ("text-font-size"))); + + char *str = pango_font_description_to_string (pfd); + SCM scm_str = scm_from_locale_string (str); + g_free (str); + pango_font_description_free (pfd); + + return find_pango_font (layout, scm_str, 1.0); +} PangoStyle symbol_to_pango_style (SCM style) { PangoStyle pstyle = PANGO_STYLE_NORMAL; - if (style == ly_symbol2scm ("italic")) - { - pstyle = PANGO_STYLE_NORMAL; - } - else if (style == ly_symbol2scm ("oblique") - || style == ly_symbol2scm ("slanted") - ) - { - pstyle = PANGO_STYLE_OBLIQUE; - } + if (scm_is_eq (style, ly_symbol2scm ("italic"))) + pstyle = PANGO_STYLE_ITALIC; + else if (scm_is_eq (style, ly_symbol2scm ("oblique")) + || scm_is_eq (style, ly_symbol2scm ("slanted"))) + pstyle = PANGO_STYLE_OBLIQUE; return pstyle; } @@ -81,39 +92,26 @@ symbol_to_pango_style (SCM style) PangoVariant symbol_to_pango_variant (SCM variant) { - PangoVariant pvariant; - if (variant == ly_symbol2scm ("caps")) - { - pvariant = PANGO_VARIANT_SMALL_CAPS; - } + PangoVariant pvariant = PANGO_VARIANT_NORMAL; + if (scm_is_eq (variant, ly_symbol2scm ("caps"))) + pvariant = PANGO_VARIANT_SMALL_CAPS; return pvariant; } - PangoWeight symbol_to_pango_weight (SCM weight) { PangoWeight pw = PANGO_WEIGHT_NORMAL; - if (weight == ly_symbol2scm ("bold")) - { - pw = PANGO_WEIGHT_BOLD; - } - if (weight == ly_symbol2scm ("heavy")) - { - pw = PANGO_WEIGHT_HEAVY; - } - if (weight == ly_symbol2scm ("ultrabold")) - { - pw = PANGO_WEIGHT_ULTRABOLD; - } - if (weight == ly_symbol2scm ("light")) - { - pw = PANGO_WEIGHT_LIGHT; - } - if (weight == ly_symbol2scm ("ultralight")) - { - pw = PANGO_WEIGHT_ULTRALIGHT; - } + if (scm_is_eq (weight, ly_symbol2scm ("bold"))) + pw = PANGO_WEIGHT_BOLD; + if (scm_is_eq (weight, ly_symbol2scm ("heavy"))) + pw = PANGO_WEIGHT_HEAVY; + if (scm_is_eq (weight, ly_symbol2scm ("ultrabold"))) + pw = PANGO_WEIGHT_ULTRABOLD; + if (scm_is_eq (weight, ly_symbol2scm ("light"))) + pw = PANGO_WEIGHT_LIGHT; + if (scm_is_eq (weight, ly_symbol2scm ("ultralight"))) + pw = PANGO_WEIGHT_ULTRALIGHT; return pw; } @@ -124,48 +122,46 @@ symbol_to_pango_stretch (SCM) // stretch) PangoStretch ps = PANGO_STRETCH_NORMAL; /* - // TODO - + // TODO + PANGO_STRETCH_ULTRA_CONDENSED, PANGO_STRETCH_EXTRA_CONDENSED, PANGO_STRETCH_CONDENSED, PANGO_STRETCH_SEMI_CONDENSED, - + PANGO_STRETCH_SEMI_EXPANDED, PANGO_STRETCH_EXPANDED, PANGO_STRETCH_EXTRA_EXPANDED, PANGO_STRETCH_ULTRA_EXPANDED - */ + */ return ps; } - - -PangoFontDescription* -symbols_to_pango_font_description(SCM family, - SCM style, - SCM variant, - SCM weight, - SCM stretch, - Real size) +PangoFontDescription * +symbols_to_pango_font_description (SCM family, + SCM style, + SCM variant, + SCM weight, + SCM stretch) { - PangoFontDescription * description = pango_font_description_new (); + PangoFontDescription *description = pango_font_description_new (); + + string family_str = "roman"; + if (scm_is_symbol (family)) + family_str = ly_symbol2string (family); + else if (scm_is_string (family)) + family_str = ly_scm2string (family); - String family_str = scm_is_symbol (family) - ? ly_symbol2string (family) - : String("roman"); pango_font_description_set_family (description, - family_str.to_str0 ()); + family_str.c_str ()); pango_font_description_set_style (description, - symbol_to_pango_style (style)); + symbol_to_pango_style (style)); pango_font_description_set_variant (description, - symbol_to_pango_variant (variant)); + symbol_to_pango_variant (variant)); pango_font_description_set_weight (description, - symbol_to_pango_weight (weight)); + symbol_to_pango_weight (weight)); pango_font_description_set_stretch (description, - symbol_to_pango_stretch (stretch)); - pango_font_description_set_size (description, - gint (size * PANGO_SCALE)); + symbol_to_pango_stretch (stretch)); return description; }