/**
* _cairo_toy_font_face_create:
* @family: a font family name, encoded in UTF-8
* @slant: the slant for the font
* @weight: the weight for the font
*
* Creates a font face from a triplet of family, slant, and weight.
* These font faces are used in implementation of the the #cairo_t "toy"
* font API.
*
* Return value: a newly created #cairo_font_face_t, destroy with
* cairo_font_face_destroy()
**/
cairo_font_face_t *
_cairo_toy_font_face_create (const char *family,
cairo_font_slant_t slant,
cairo_font_weight_t weight)
{
cairo_status_t status;
cairo_toy_font_face_t key, *font_face;
cairo_hash_table_t *hash_table;
hash_table = _cairo_toy_font_face_hash_table_lock ();
if (hash_table == NULL)
goto UNWIND;
_cairo_toy_font_face_init_key (&key, family, slant, weight);
/* Return existing font_face if it exists in the hash table. */
if (_cairo_hash_table_lookup (hash_table,
&key.base.hash_entry,
(cairo_hash_entry_t **) &font_face))
{
/* We increment the reference count here manually to avoid
double-locking. */
font_face->base.ref_count++;
_cairo_toy_font_face_hash_table_unlock ();
return &font_face->base;
}
/* Otherwise create it and insert into hash table. */
font_face = malloc (sizeof (cairo_toy_font_face_t));
if (font_face == NULL)
goto UNWIND_HASH_TABLE_LOCK;
status = _cairo_toy_font_face_init (font_face, family, slant, weight);
if (status)
goto UNWIND_FONT_FACE_MALLOC;
status = _cairo_hash_table_insert (hash_table, &font_face->base.hash_entry);
if (status)
goto UNWIND_FONT_FACE_INIT;
_cairo_toy_font_face_hash_table_unlock ();
return &font_face->base;
UNWIND_FONT_FACE_INIT:
UNWIND_FONT_FACE_MALLOC:
free (font_face);
UNWIND_HASH_TABLE_LOCK:
_cairo_toy_font_face_hash_table_unlock ();
UNWIND:
return (cairo_font_face_t*) &_cairo_font_face_nil;
}
/**
* cairo_toy_font_face_create:
* @family: a font family name, encoded in UTF-8
* @slant: the slant for the font
* @weight: the weight for the font
*
* Creates a font face from a triplet of family, slant, and weight.
* These font faces are used in implementation of the the #cairo_t "toy"
* font API.
*
* If @family is the zero-length string "", the platform-specific default
* family is assumed. The default family then can be queried using
* cairo_toy_font_face_get_family().
*
* The cairo_select_font_face() function uses this to create font faces.
* See that function for limitations of toy font faces.
*
* Return value: a newly created #cairo_font_face_t. Free with
* cairo_font_face_destroy() when you are done using it.
*
* Since: 1.8
**/
cairo_font_face_t *
cairo_toy_font_face_create (const char *family,
cairo_font_slant_t slant,
cairo_font_weight_t weight)
{
cairo_status_t status;
cairo_toy_font_face_t key, *font_face;
cairo_hash_table_t *hash_table;
if (family == NULL)
return (cairo_font_face_t*) &_cairo_font_face_null_pointer;
/* Make sure we've got valid UTF-8 for the family */
status = _cairo_utf8_to_ucs4 (family, -1, NULL, NULL);
if (status == CAIRO_STATUS_INVALID_STRING)
return (cairo_font_face_t*) &_cairo_font_face_invalid_string;
else if (status)
return (cairo_font_face_t*) &_cairo_font_face_nil;
switch (slant) {
case CAIRO_FONT_SLANT_NORMAL:
case CAIRO_FONT_SLANT_ITALIC:
case CAIRO_FONT_SLANT_OBLIQUE:
break;
default:
return (cairo_font_face_t*) &_cairo_font_face_invalid_slant;
}
switch (weight) {
case CAIRO_FONT_WEIGHT_NORMAL:
case CAIRO_FONT_WEIGHT_BOLD:
break;
default:
return (cairo_font_face_t*) &_cairo_font_face_invalid_weight;
}
if (*family == '\0')
family = CAIRO_FONT_FAMILY_DEFAULT;
hash_table = _cairo_toy_font_face_hash_table_lock ();
if (hash_table == NULL)
goto UNWIND;
_cairo_toy_font_face_init_key (&key, family, slant, weight);
/* Return existing font_face if it exists in the hash table. */
if (_cairo_hash_table_lookup (hash_table,
&key.base.hash_entry,
(cairo_hash_entry_t **) &font_face))
{
if (! font_face->base.status) {
/* We increment the reference count here manually to avoid
double-locking. */
_cairo_reference_count_inc (&font_face->base.ref_count);
_cairo_toy_font_face_hash_table_unlock ();
return &font_face->base;
}
/* remove the bad font from the hash table */
_cairo_hash_table_remove (hash_table, &key.base.hash_entry);
font_face->base.hash_entry.hash = 0;
}
/* Otherwise create it and insert into hash table. */
//+EAWebKitChange
//11/10/2011
font_face = cairo_malloc (sizeof (cairo_toy_font_face_t));
//-EAWebKitChange
if (font_face == NULL) {
status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
goto UNWIND_HASH_TABLE_LOCK;
}
status = _cairo_toy_font_face_init (font_face, family, slant, weight);
if (status)
goto UNWIND_FONT_FACE_MALLOC;
status = _cairo_hash_table_insert (hash_table, &font_face->base.hash_entry);
if (status)
goto UNWIND_FONT_FACE_INIT;
_cairo_toy_font_face_hash_table_unlock ();
return &font_face->base;
UNWIND_FONT_FACE_INIT:
_cairo_toy_font_face_fini (font_face);
UNWIND_FONT_FACE_MALLOC:
//+EAWebKitChange
//11/10/2011
cairo_free (font_face);
//-EAWebKitChange
UNWIND_HASH_TABLE_LOCK:
_cairo_toy_font_face_hash_table_unlock ();
UNWIND:
return (cairo_font_face_t*) &_cairo_font_face_nil;
}
/**
* cairo_toy_font_face_create:
* @family: a font family name, encoded in UTF-8
* @slant: the slant for the font
* @weight: the weight for the font
*
* Creates a font face from a triplet of family, slant, and weight.
* These font faces are used in implementation of the the #cairo_t "toy"
* font API.
*
* If @family is the zero-length string "", the platform-specific default
* family is assumed. The default family then can be queried using
* cairo_toy_font_face_get_family().
*
* The cairo_select_font_face() function uses this to create font faces.
* See that function for limitations and other details of toy font faces.
*
* Return value: a newly created #cairo_font_face_t. Free with
* cairo_font_face_destroy() when you are done using it.
*
* Since: 1.8
**/
cairo_font_face_t *
cairo_toy_font_face_create (const char *family,
cairo_font_slant_t slant,
cairo_font_weight_t weight)
{
cairo_status_t status;
cairo_toy_font_face_t key, *font_face;
cairo_hash_table_t *hash_table;
if (family == NULL)
return (cairo_font_face_t*) &_cairo_font_face_null_pointer;
/* Make sure we've got valid UTF-8 for the family */
status = _cairo_utf8_to_ucs4 (family, -1, NULL, NULL);
if (unlikely (status)) {
if (status == CAIRO_STATUS_INVALID_STRING)
return (cairo_font_face_t*) &_cairo_font_face_invalid_string;
return (cairo_font_face_t*) &_cairo_font_face_nil;
}
switch (slant) {
case CAIRO_FONT_SLANT_NORMAL:
case CAIRO_FONT_SLANT_ITALIC:
case CAIRO_FONT_SLANT_OBLIQUE:
break;
default:
return (cairo_font_face_t*) &_cairo_font_face_invalid_slant;
}
switch (weight) {
case CAIRO_FONT_WEIGHT_NORMAL:
case CAIRO_FONT_WEIGHT_BOLD:
break;
default:
return (cairo_font_face_t*) &_cairo_font_face_invalid_weight;
}
if (*family == '\0')
family = CAIRO_FONT_FAMILY_DEFAULT;
hash_table = _cairo_toy_font_face_hash_table_lock ();
if (unlikely (hash_table == NULL))
goto UNWIND;
_cairo_toy_font_face_init_key (&key, family, slant, weight);
/* Return existing font_face if it exists in the hash table. */
font_face = _cairo_hash_table_lookup (hash_table,
&key.base.hash_entry);
if (font_face != NULL) {
if (font_face->base.status == CAIRO_STATUS_SUCCESS) {
cairo_font_face_reference (&font_face->base);
_cairo_toy_font_face_hash_table_unlock ();
return &font_face->base;
}
/* remove the bad font from the hash table */
_cairo_hash_table_remove (hash_table, &font_face->base.hash_entry);
}
/* Otherwise create it and insert into hash table. */
font_face = _cairo_malloc (sizeof (cairo_toy_font_face_t));
if (unlikely (font_face == NULL)) {
status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
goto UNWIND_HASH_TABLE_LOCK;
}
status = _cairo_toy_font_face_init (font_face, family, slant, weight);
if (unlikely (status))
goto UNWIND_FONT_FACE_MALLOC;
assert (font_face->base.hash_entry.hash == key.base.hash_entry.hash);
status = _cairo_hash_table_insert (hash_table, &font_face->base.hash_entry);
if (unlikely (status))
goto UNWIND_FONT_FACE_INIT;
_cairo_toy_font_face_hash_table_unlock ();
return &font_face->base;
UNWIND_FONT_FACE_INIT:
_cairo_toy_font_face_fini (font_face);
UNWIND_FONT_FACE_MALLOC:
free (font_face);
UNWIND_HASH_TABLE_LOCK:
_cairo_toy_font_face_hash_table_unlock ();
UNWIND:
return (cairo_font_face_t*) &_cairo_font_face_nil;
}
