* Google Author(s): Behdad Esfahbod
*/
-#include "hb-private.hh"
+#include "hb.hh"
+
+#ifdef HAVE_GLIB
#include "hb-glib.h"
-#include "hb-unicode-private.hh"
+#include "hb-machinery.hh"
+
+
+/**
+ * SECTION:hb-glib
+ * @title: hb-glib
+ * @short_description: GLib integration
+ * @include: hb-glib.h
+ *
+ * Functions for using HarfBuzz with the GLib library.
+ *
+ * HarfBuzz supports using GLib to provide Unicode data, by attaching
+ * GLib functions to the virtual methods in a #hb_unicode_funcs_t function
+ * structure.
+ **/
#if !GLIB_CHECK_VERSION(2,29,14)
};
#endif
+/**
+ * hb_glib_script_to_script:
+ * @script: The GUnicodeScript identifier to query
+ *
+ * Fetches the #hb_script_t script that corresponds to the
+ * specified GUnicodeScript identifier.
+ *
+ * Return value: the #hb_script_t script found
+ *
+ * Since: 0.9.38
+ **/
hb_script_t
hb_glib_script_to_script (GUnicodeScript script)
{
#endif
}
+/**
+ * hb_glib_script_from_script:
+ * @script: The #hb_script_t to query
+ *
+ * Fetches the GUnicodeScript identifier that corresponds to the
+ * specified #hb_script_t script.
+ *
+ * Return value: the GUnicodeScript identifier found
+ *
+ * Since: 0.9.38
+ **/
GUnicodeScript
hb_glib_script_from_script (hb_script_t script)
{
return (hb_unicode_combining_class_t) g_unichar_combining_class (unicode);
}
-static unsigned int
-hb_glib_unicode_eastasian_width (hb_unicode_funcs_t *ufuncs HB_UNUSED,
- hb_codepoint_t unicode,
- void *user_data HB_UNUSED)
-{
- return g_unichar_iswide (unicode) ? 2 : 1;
-}
-
static hb_unicode_general_category_t
hb_glib_unicode_general_category (hb_unicode_funcs_t *ufuncs HB_UNUSED,
hb_codepoint_t unicode,
return ret;
}
-static unsigned int
-hb_glib_unicode_decompose_compatibility (hb_unicode_funcs_t *ufuncs HB_UNUSED,
- hb_codepoint_t u,
- hb_codepoint_t *decomposed,
- void *user_data HB_UNUSED)
-{
-#if GLIB_CHECK_VERSION(2,29,12)
- return g_unichar_fully_decompose (u, true, decomposed, HB_UNICODE_MAX_DECOMPOSITION_LEN);
+
+#if HB_USE_ATEXIT
+static void free_static_glib_funcs ();
#endif
- /* If the user doesn't have GLib >= 2.29.12 we have to perform
- * a round trip to UTF-8 and the associated memory management dance. */
- gchar utf8[6];
- gchar *utf8_decomposed, *c;
- gsize utf8_len, utf8_decomposed_len, i;
+static struct hb_glib_unicode_funcs_lazy_loader_t : hb_unicode_funcs_lazy_loader_t<hb_glib_unicode_funcs_lazy_loader_t>
+{
+ static hb_unicode_funcs_t *create ()
+ {
+ hb_unicode_funcs_t *funcs = hb_unicode_funcs_create (nullptr);
- /* Convert @u to UTF-8 and normalise it in NFKD mode. This performs the compatibility decomposition. */
- utf8_len = g_unichar_to_utf8 (u, utf8);
- utf8_decomposed = g_utf8_normalize (utf8, utf8_len, G_NORMALIZE_NFKD);
- utf8_decomposed_len = g_utf8_strlen (utf8_decomposed, -1);
+ hb_unicode_funcs_set_combining_class_func (funcs, hb_glib_unicode_combining_class, nullptr, nullptr);
+ hb_unicode_funcs_set_general_category_func (funcs, hb_glib_unicode_general_category, nullptr, nullptr);
+ hb_unicode_funcs_set_mirroring_func (funcs, hb_glib_unicode_mirroring, nullptr, nullptr);
+ hb_unicode_funcs_set_script_func (funcs, hb_glib_unicode_script, nullptr, nullptr);
+ hb_unicode_funcs_set_compose_func (funcs, hb_glib_unicode_compose, nullptr, nullptr);
+ hb_unicode_funcs_set_decompose_func (funcs, hb_glib_unicode_decompose, nullptr, nullptr);
- assert (utf8_decomposed_len <= HB_UNICODE_MAX_DECOMPOSITION_LEN);
+ hb_unicode_funcs_make_immutable (funcs);
- for (i = 0, c = utf8_decomposed; i < utf8_decomposed_len; i++, c = g_utf8_next_char (c))
- *decomposed++ = g_utf8_get_char (c);
+#if HB_USE_ATEXIT
+ atexit (free_static_glib_funcs);
+#endif
- g_free (utf8_decomposed);
+ return funcs;
+ }
+} static_glib_funcs;
- return utf8_decomposed_len;
+#if HB_USE_ATEXIT
+static
+void free_static_glib_funcs ()
+{
+ static_glib_funcs.free_instance ();
}
+#endif
+/**
+ * hb_glib_get_unicode_funcs:
+ *
+ * Fetches a Unicode-functions structure that is populated
+ * with the appropriate GLib function for each method.
+ *
+ * Return value: (transfer none): a pointer to the #hb_unicode_funcs_t Unicode-functions structure
+ *
+ * Since: 0.9.38
+ **/
hb_unicode_funcs_t *
-hb_glib_get_unicode_funcs (void)
+hb_glib_get_unicode_funcs ()
{
- static const hb_unicode_funcs_t _hb_glib_unicode_funcs = {
- HB_OBJECT_HEADER_STATIC,
-
- NULL, /* parent */
- true, /* immutable */
- {
-#define HB_UNICODE_FUNC_IMPLEMENT(name) hb_glib_unicode_##name,
- HB_UNICODE_FUNCS_IMPLEMENT_CALLBACKS
-#undef HB_UNICODE_FUNC_IMPLEMENT
- }
- };
-
- return const_cast<hb_unicode_funcs_t *> (&_hb_glib_unicode_funcs);
+ return static_glib_funcs.get_unconst ();
}
+
+
#if GLIB_CHECK_VERSION(2,31,10)
+
+static void
+_hb_g_bytes_unref (void *data)
+{
+ g_bytes_unref ((GBytes *) data);
+}
+
/**
* hb_glib_blob_create:
+ * @gbytes: the GBytes structure to work upon
+ *
+ * Creates an #hb_blob_t blob from the specified
+ * GBytes data structure.
+ *
+ * Return value: (transfer full): the new #hb_blob_t blob object
*
* Since: 0.9.38
**/
size,
HB_MEMORY_MODE_READONLY,
g_bytes_ref (gbytes),
- (hb_destroy_func_t) g_bytes_unref);
+ _hb_g_bytes_unref);
}
#endif
+
+
+#endif
projects / platform / upstream / harfbuzz.git / blobdiff