static cairo_status_t
_cairo_toy_font_face_scaled_font_get_implementation (void *abstract_font_face,
cairo_font_face_t **font_face_out)
{
cairo_toy_font_face_t *font_face = abstract_font_face;
cairo_status_t status;
if (font_face->base.status)
return font_face->base.status;
if (CAIRO_SCALED_FONT_BACKEND_DEFAULT != &_cairo_user_scaled_font_backend)
{
const cairo_scaled_font_backend_t * backend = CAIRO_SCALED_FONT_BACKEND_DEFAULT;
if (backend->get_implementation == NULL) {
*font_face_out = &font_face->base;
return CAIRO_STATUS_SUCCESS;
}
status = backend->get_implementation (font_face,
font_face_out);
if (status != CAIRO_INT_STATUS_UNSUPPORTED)
return _cairo_font_face_set_error (&font_face->base, status);
}
status = _cairo_user_scaled_font_backend.get_implementation (font_face,
font_face_out);
return _cairo_font_face_set_error (&font_face->base, status);
}
static cairo_font_face_t *
_cairo_toy_font_face_create_impl_face (cairo_toy_font_face_t *font_face)
{
const cairo_font_face_backend_t * backend = CAIRO_FONT_FACE_BACKEND_DEFAULT;
cairo_font_face_t *impl_font_face;
cairo_int_status_t status = CAIRO_INT_STATUS_UNSUPPORTED;
if (font_face->base.status)
return NULL;
if (backend->create_for_toy != NULL &&
0 != strncmp (font_face->family, CAIRO_USER_FONT_FAMILY_DEFAULT,
strlen (CAIRO_USER_FONT_FAMILY_DEFAULT)))
{
status = backend->create_for_toy (font_face, &impl_font_face);
}
if (status == CAIRO_INT_STATUS_UNSUPPORTED) {
backend = &_cairo_user_font_face_backend;
status = backend->create_for_toy (font_face, &impl_font_face);
}
if (_cairo_font_face_set_error (&font_face->base, status))
return NULL;
if (_cairo_font_face_set_error (&font_face->base, impl_font_face->status)) {
cairo_font_face_destroy (impl_font_face);
return NULL;
}
return impl_font_face;
}
/**
* cairo_user_font_face_set_unicode_to_glyph_func:
* @font_face: A user font face
* @unicode_to_glyph_func: The unicode_to_glyph callback, or %NULL
*
* Sets the unicode-to-glyph conversion function of a user-font.
* See #cairo_user_scaled_font_unicode_to_glyph_func_t for details of how the callback
* works.
*
* The font-face should not be immutable or a %CAIRO_STATUS_USER_FONT_IMMUTABLE
* error will occur. A user font-face is immutable as soon as a scaled-font
* is created from it.
*
* Since: 1.8
**/
void
cairo_user_font_face_set_unicode_to_glyph_func (cairo_font_face_t *font_face,
cairo_user_scaled_font_unicode_to_glyph_func_t unicode_to_glyph_func)
{
cairo_user_font_face_t *user_font_face = (cairo_user_font_face_t *) font_face;
if (! _cairo_font_face_is_user (font_face)) {
if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH))
return;
}
if (user_font_face->immutable) {
if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_USER_FONT_IMMUTABLE))
return;
}
user_font_face->scaled_font_methods.unicode_to_glyph = unicode_to_glyph_func;
}
/**
* cairo_user_font_face_get_unicode_to_glyph_func:
* @font_face: A user font face
*
* Gets the unicode-to-glyph conversion function of a user-font.
*
* Return value: The unicode_to_glyph callback of @font_face
* or %NULL if none set.
*
* Since: 1.8
**/
cairo_user_scaled_font_unicode_to_glyph_func_t
cairo_user_font_face_get_unicode_to_glyph_func (cairo_font_face_t *font_face)
{
cairo_user_font_face_t *user_font_face = (cairo_user_font_face_t *) font_face;
if (! _cairo_font_face_is_user (font_face)) {
if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH))
return NULL;
}
return user_font_face->scaled_font_methods.unicode_to_glyph;
}
/**
* cairo_toy_font_face_get_weight:
* @font_face: A toy font face
*
* Gets the weight a toy font.
*
* Return value: The weight value
*
* Since: 1.8
**/
cairo_font_weight_t
cairo_toy_font_face_get_weight (cairo_font_face_t *font_face)
{
cairo_toy_font_face_t *toy_font_face = (cairo_toy_font_face_t *) font_face;
if (! _cairo_font_face_is_toy (font_face)) {
if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH))
return CAIRO_FONT_WEIGHT_DEFAULT;
}
return toy_font_face->weight;
}
static cairo_status_t
_cairo_toy_font_face_scaled_font_create (void *abstract_font_face,
const cairo_matrix_t *font_matrix,
const cairo_matrix_t *ctm,
const cairo_font_options_t *options,
cairo_scaled_font_t **scaled_font)
{
cairo_toy_font_face_t *font_face = abstract_font_face;
cairo_status_t status;
if (font_face->base.status)
return font_face->base.status;
status = cairo_font_options_status ((cairo_font_options_t *) options);
if (status)
return status;
if (CAIRO_SCALED_FONT_BACKEND_DEFAULT != &_cairo_user_scaled_font_backend)
{
const cairo_scaled_font_backend_t * backend = CAIRO_SCALED_FONT_BACKEND_DEFAULT;
*scaled_font = NULL;
status = backend->create_toy (font_face,
font_matrix,
ctm,
options,
scaled_font);
if (status != CAIRO_INT_STATUS_UNSUPPORTED)
return _cairo_font_face_set_error (&font_face->base, status);
if (*scaled_font)
cairo_scaled_font_destroy (*scaled_font);
}
status = _cairo_user_scaled_font_backend.create_toy (font_face,
font_matrix,
ctm,
options,
scaled_font);
return _cairo_font_face_set_error (&font_face->base, status);
}
/**
* cairo_toy_font_face_get_family:
* @font_face: A toy font face
*
* Gets the familly name of a toy font.
*
* Return value: The family name. This string is owned by the font face
* and remains valid as long as the font face is alive (referenced).
*
* Since: 1.8
**/
const char *
cairo_toy_font_face_get_family (cairo_font_face_t *font_face)
{
cairo_toy_font_face_t *toy_font_face = (cairo_toy_font_face_t *) font_face;
if (! _cairo_font_face_is_toy (font_face)) {
if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH))
return CAIRO_FONT_FAMILY_DEFAULT;
}
assert (toy_font_face->owns_family);
return toy_font_face->family;
}
/**
* cairo_user_font_face_set_init_func:
* @font_face: A user font face
* @init_func: The init callback, or %NULL
*
* Sets the scaled-font initialization function of a user-font.
* See #cairo_user_scaled_font_init_func_t for details of how the callback
* works.
*
* The font-face should not be immutable or a %CAIRO_STATUS_USER_FONT_IMMUTABLE
* error will occur. A user font-face is immutable as soon as a scaled-font
* is created from it.
*
* Since: 1.8
**/
void
cairo_user_font_face_set_init_func (cairo_font_face_t *font_face,
cairo_user_scaled_font_init_func_t init_func)
{
cairo_user_font_face_t *user_font_face;
if (font_face->status)
return;
if (! _cairo_font_face_is_user (font_face)) {
if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH))
return;
}
user_font_face = (cairo_user_font_face_t *) font_face;
if (user_font_face->immutable) {
if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_USER_FONT_IMMUTABLE))
return;
}
user_font_face->scaled_font_methods.init = init_func;
}
static cairo_status_t
_cairo_toy_font_face_scaled_font_create (void *abstract_font_face,
const cairo_matrix_t *font_matrix,
const cairo_matrix_t *ctm,
const cairo_font_options_t *options,
cairo_scaled_font_t **scaled_font)
{
cairo_toy_font_face_t *font_face = (cairo_toy_font_face_t *) abstract_font_face;
ASSERT_NOT_REACHED;
return _cairo_font_face_set_error (&font_face->base, CAIRO_STATUS_FONT_TYPE_MISMATCH);
}
/**
* cairo_toy_font_face_get_slant:
* @font_face: A toy font face
*
* Gets the slant a toy font.
*
* Return value: The slant value
*
* Since: 1.8
**/
cairo_font_slant_t
cairo_toy_font_face_get_slant (cairo_font_face_t *font_face)
{
cairo_toy_font_face_t *toy_font_face;
if (font_face->status)
return CAIRO_FONT_SLANT_DEFAULT;
toy_font_face = (cairo_toy_font_face_t *) font_face;
if (! _cairo_font_face_is_toy (font_face)) {
if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH))
return CAIRO_FONT_SLANT_DEFAULT;
}
return toy_font_face->slant;
}
cairo_font_face_t *
_cairo_toy_font_face_get_implementation (cairo_font_face_t *font_face)
{
cairo_toy_font_face_t *toy_font_face;
if (font_face->status)
return NULL;
toy_font_face = (cairo_toy_font_face_t *) font_face;
if (! _cairo_font_face_is_toy (font_face)) {
if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH))
return NULL;
}
return toy_font_face->impl_face ? toy_font_face->impl_face : font_face;
}
/**
* cairo_user_font_face_get_text_to_glyphs_func:
* @font_face: A user font face
*
* Gets the text-to-glyphs conversion function of a user-font.
*
* Return value: The text_to_glyphs callback of @font_face
* or %NULL if none set or an error occurred.
*
* Since: 1.8
**/
cairo_user_scaled_font_text_to_glyphs_func_t
cairo_user_font_face_get_text_to_glyphs_func (cairo_font_face_t *font_face)
{
cairo_user_font_face_t *user_font_face;
if (font_face->status)
return NULL;
if (! _cairo_font_face_is_user (font_face)) {
if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH))
return NULL;
}
user_font_face = (cairo_user_font_face_t *) font_face;
return user_font_face->scaled_font_methods.text_to_glyphs;
}
