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author | Matthias Clasen <mclasen@redhat.com> | 2021-12-25 17:43:31 -0500 |
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committer | Matthias Clasen <mclasen@redhat.com> | 2022-01-28 09:03:03 -0500 |
commit | ef7daf69f461de712932d189577085bf1a01cf15 (patch) | |
tree | 5ee622f8b5819f39d3474080169e3817f54bb41f /pango | |
parent | 23cf33a37efb324e633845353e584730e6ef385c (diff) | |
download | pango-ef7daf69f461de712932d189577085bf1a01cf15.tar.gz |
Add PangoLanguageSet
PangoLanguageSet is an internal type used to
represent languages that are supported by a
font, similar to FcLangSet.
Diffstat (limited to 'pango')
-rw-r--r-- | pango/meson.build | 2 | ||||
-rw-r--r-- | pango/pango-language-set-private.h | 29 | ||||
-rw-r--r-- | pango/pango-language-set-simple-private.h | 19 | ||||
-rw-r--r-- | pango/pango-language-set-simple.c | 125 | ||||
-rw-r--r-- | pango/pango-language-set.c | 87 |
5 files changed, 262 insertions, 0 deletions
diff --git a/pango/meson.build b/pango/meson.build index 8e1e6976..c8713582 100644 --- a/pango/meson.build +++ b/pango/meson.build @@ -19,6 +19,8 @@ pango_sources = [ 'pango-gravity.c', 'pango-item.c', 'pango-language.c', + 'pango-language-set.c', + 'pango-language-set-simple.c', 'pango-layout.c', 'pango-markup.c', 'pango-matrix.c', diff --git a/pango/pango-language-set-private.h b/pango/pango-language-set-private.h new file mode 100644 index 00000000..a72982b3 --- /dev/null +++ b/pango/pango-language-set-private.h @@ -0,0 +1,29 @@ +#pragma once + +#include "pango-language.h" + +G_BEGIN_DECLS + +#define PANGO_TYPE_LANGUAGE_SET (pango_language_set_get_type ()) + +PANGO_AVAILABLE_IN_1_52 +G_DECLARE_DERIVABLE_TYPE (PangoLanguageSet, pango_language_set, PANGO, LANGUAGE_SET, GObject) + +struct _PangoLanguageSetClass +{ + GObjectClass parent_class; + + gboolean (* matches_language) (PangoLanguageSet *set, + PangoLanguage *language); + + PangoLanguage ** (* get_languages) (PangoLanguageSet *set); +}; + +gboolean pango_language_set_matches_language (PangoLanguageSet *set, + PangoLanguage *language); + +PangoLanguage ** pango_language_set_get_languages (PangoLanguageSet *set); + +char * pango_language_set_to_string (PangoLanguageSet *set); + +G_END_DECLS diff --git a/pango/pango-language-set-simple-private.h b/pango/pango-language-set-simple-private.h new file mode 100644 index 00000000..167ccd8b --- /dev/null +++ b/pango/pango-language-set-simple-private.h @@ -0,0 +1,19 @@ +#pragma once + +#include "pango-language-set-private.h" + +G_BEGIN_DECLS + +#define PANGO_TYPE_LANGUAGE_SET_SIMPLE (pango_language_set_simple_get_type ()) + +PANGO_AVAILABLE_IN_1_52 +G_DECLARE_FINAL_TYPE (PangoLanguageSetSimple, pango_language_set_simple, PANGO, LANGUAGE_SET_SIMPLE, PangoLanguageSet) + +PANGO_AVAILABLE_IN_1_52 +PangoLanguageSetSimple *pango_language_set_simple_new (void); + +PANGO_AVAILABLE_IN_1_52 +void pango_language_set_simple_add_language (PangoLanguageSetSimple *self, + PangoLanguage *language); + +G_END_DECLS diff --git a/pango/pango-language-set-simple.c b/pango/pango-language-set-simple.c new file mode 100644 index 00000000..3f1aa326 --- /dev/null +++ b/pango/pango-language-set-simple.c @@ -0,0 +1,125 @@ +/* Pango + * + * Copyright (C) 2021 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include "config.h" + +#include <gio/gio.h> + +#include "pango-language-set-simple-private.h" + +struct _PangoLanguageSetSimple +{ + PangoLanguageSet parent_instance; + + GHashTable *languages; + PangoLanguage **list; +}; + +G_DEFINE_TYPE (PangoLanguageSetSimple, pango_language_set_simple, PANGO_TYPE_LANGUAGE_SET) + +static void +pango_language_set_simple_init (PangoLanguageSetSimple *self) +{ + self->languages = g_hash_table_new (g_direct_hash, g_direct_equal); +} + +static void +pango_language_set_simple_finalize (GObject *object) +{ + PangoLanguageSetSimple *self = PANGO_LANGUAGE_SET_SIMPLE (object); + + g_hash_table_unref (self->languages); + g_free (self->list); + + G_OBJECT_CLASS (pango_language_set_simple_parent_class)->finalize (object); +} + +static gboolean +pango_language_set_simple_matches_language (PangoLanguageSet *set, + PangoLanguage *language) +{ + PangoLanguageSetSimple *self = PANGO_LANGUAGE_SET_SIMPLE (set); + const char *s; + + if (g_hash_table_contains (self->languages, language)) + return TRUE; + + if (language == pango_language_from_string ("c")) + return TRUE; + + s = pango_language_to_string (language); + if (strchr (s, '-')) + { + char buf[10]; + + for (int i = 0; i < 10; i++) + { + buf[i] = s[i]; + if (buf[i] == '-') + { + buf[i] = '\0'; + break; + } + } + buf[9] = '\0'; + + if (g_hash_table_contains (self->languages, pango_language_from_string (buf))) + return TRUE; + } + + return FALSE; +} + +static PangoLanguage ** +pango_language_set_simple_get_languages (PangoLanguageSet *set) +{ + PangoLanguageSetSimple *self = PANGO_LANGUAGE_SET_SIMPLE (set); + + if (!self->list) + self->list = (PangoLanguage **) g_hash_table_get_keys_as_array (self->languages, NULL); + + return self->list; +} + +static void +pango_language_set_simple_class_init (PangoLanguageSetSimpleClass *class) +{ + GObjectClass *object_class = G_OBJECT_CLASS (class); + PangoLanguageSetClass *language_set_class = PANGO_LANGUAGE_SET_CLASS (class); + + object_class->finalize = pango_language_set_simple_finalize; + language_set_class->matches_language = pango_language_set_simple_matches_language; + language_set_class->get_languages = pango_language_set_simple_get_languages; +} + +PangoLanguageSetSimple * +pango_language_set_simple_new (void) +{ + return g_object_new (PANGO_TYPE_LANGUAGE_SET_SIMPLE, NULL); +} + +void +pango_language_set_simple_add_language (PangoLanguageSetSimple *self, + PangoLanguage *language) +{ + g_return_if_fail (self->list == NULL); + + g_hash_table_add (self->languages, language); +} diff --git a/pango/pango-language-set.c b/pango/pango-language-set.c new file mode 100644 index 00000000..b0dc87a8 --- /dev/null +++ b/pango/pango-language-set.c @@ -0,0 +1,87 @@ +/* Pango + * + * Copyright (C) 2021 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include "config.h" + +#include <gio/gio.h> + +#include "pango-language-set-private.h" + + +G_DEFINE_ABSTRACT_TYPE (PangoLanguageSet, pango_language_set, G_TYPE_OBJECT) + +static void +pango_language_set_init (PangoLanguageSet *set) +{ +} + +static gboolean +pango_language_set_default_matches_language (PangoLanguageSet *set, + PangoLanguage *language) +{ + return FALSE; +} + +static PangoLanguage ** +pango_language_set_default_get_languages (PangoLanguageSet *set) +{ + return NULL; +} + +static void +pango_language_set_class_init (PangoLanguageSetClass *class) +{ + PangoLanguageSetClass *language_set_class = PANGO_LANGUAGE_SET_CLASS (class); + + language_set_class->matches_language = pango_language_set_default_matches_language; + language_set_class->get_languages = pango_language_set_default_get_languages; +} + +gboolean +pango_language_set_matches_language (PangoLanguageSet *set, + PangoLanguage *language) +{ + return PANGO_LANGUAGE_SET_GET_CLASS (set)->matches_language (set, language); +} + +PangoLanguage ** +pango_language_set_get_languages (PangoLanguageSet *set) +{ + return PANGO_LANGUAGE_SET_GET_CLASS (set)->get_languages (set); +} + +char * +pango_language_set_to_string (PangoLanguageSet *set) +{ + PangoLanguage **languages; + GString *s; + + s = g_string_new (""); + + languages = pango_language_set_get_languages (set); + for (int i = 0; languages[i]; i++) + { + if (s->len > 0) + g_string_append (s, "|"); + g_string_append (s, pango_language_to_string (languages[i])); + } + + return g_string_free (s, FALSE); +} |