static cairo_status_t
_user_font_face_create (cairo_font_face_t **out)
{
cairo_font_face_t *user_font_face;
cairo_font_face_t *fallback_font_face;
cairo_status_t status;
user_font_face = cairo_user_font_face_create ();
cairo_user_font_face_set_init_func (user_font_face, test_scaled_font_init);
cairo_user_font_face_set_render_glyph_func (user_font_face, test_scaled_font_render_glyph);
cairo_user_font_face_set_text_to_glyphs_func (user_font_face, test_scaled_font_text_to_glyphs);
/* This also happens to be default font face on cairo_t, so does
* not make much sense here. For demonstration only.
*/
fallback_font_face = cairo_toy_font_face_create ("",
CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_NORMAL);
status = cairo_font_face_set_user_data (user_font_face,
&fallback_font_key,
fallback_font_face,
(cairo_destroy_func_t) cairo_font_face_destroy);
if (status) {
cairo_font_face_destroy (fallback_font_face);
cairo_font_face_destroy (user_font_face);
return status;
}
*out = user_font_face;
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_user_font_face_create (cairo_font_face_t **out)
{
static const test_scaled_font_glyph_t glyphs [] = {
{ 'c', 6, { 0x00, 0x38, 0x44, 0x80, 0x80, 0x80, 0x44, 0x38 } },
{ 'a', 6, { 0x00, 0x70, 0x88, 0x3c, 0x44, 0x84, 0x8c, 0x74 } },
{ 'i', 1, { 0x80, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80 } },
{ 'r', 6, { 0x00, 0xb8, 0xc4, 0x80, 0x80, 0x80, 0x80, 0x80 } },
{ 'o', 7, { 0x00, 0x38, 0x44, 0x82, 0x82, 0x82, 0x44, 0x38 } },
{ -1, 8, { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } },
};
cairo_font_face_t *user_font_face;
cairo_status_t status;
user_font_face = cairo_user_font_face_create ();
cairo_user_font_face_set_init_func (user_font_face, test_scaled_font_init);
cairo_user_font_face_set_render_glyph_func (user_font_face, test_scaled_font_render_glyph);
cairo_user_font_face_set_unicode_to_glyph_func (user_font_face, test_scaled_font_unicode_to_glyph);
status = cairo_font_face_set_user_data (user_font_face,
&test_font_face_glyphs_key,
(void*) glyphs, NULL);
if (status) {
cairo_font_face_destroy (user_font_face);
return status;
}
*out = user_font_face;
return CAIRO_STATUS_SUCCESS;
}
static cairo_font_face_t *
get_user_font_face (void)
{
if (!user_font_face) {
cairo_font_face_t *fallback_font_face;
user_font_face = cairo_user_font_face_create ();
cairo_user_font_face_set_init_func (user_font_face, test_scaled_font_init);
cairo_user_font_face_set_render_glyph_func (user_font_face, test_scaled_font_render_glyph);
cairo_user_font_face_set_text_to_glyphs_func (user_font_face, test_scaled_font_text_to_glyphs);
/* This also happens to be default font face on cairo_t, so does
* not make much sense here. For demonstration only.
*/
fallback_font_face = cairo_toy_font_face_create ("",
CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_NORMAL);
cairo_font_face_set_user_data (user_font_face,
&fallback_font_key,
fallback_font_face,
(cairo_destroy_func_t) cairo_font_face_destroy);
}
return user_font_face;
}
static VALUE
cr_user_font_face_initialize (VALUE self)
{
cairo_font_face_t *face;
face = cairo_user_font_face_create ();
cr_font_face_check_status (face);
cairo_font_face_set_user_data (face, &ruby_object_key, (void *)self, NULL);
cairo_user_font_face_set_init_func
(face, cr_user_font_face_init_func);
cairo_user_font_face_set_render_glyph_func
(face, cr_user_font_face_render_glyph_func);
cairo_user_font_face_set_text_to_glyphs_func
(face, cr_user_font_face_text_to_glyphs_func);
cairo_user_font_face_set_unicode_to_glyph_func
(face, cr_user_font_face_unicode_to_glyph_func);
rb_ivar_set (self, cr_id_init, Qnil);
rb_ivar_set (self, cr_id_render_glyph, Qnil);
rb_ivar_set (self, cr_id_text_to_glyphs, Qnil);
rb_ivar_set (self, cr_id_unicode_to_glyph, Qnil);
DATA_PTR (self) = face;
return Qnil;
}
UserFont::UserFont(SvgFont* instance){
this->face = cairo_user_font_face_create ();
cairo_user_font_face_set_init_func (this->face, font_init_cb);
cairo_user_font_face_set_render_glyph_func (this->face, font_render_glyph_cb);
cairo_user_font_face_set_text_to_glyphs_func(this->face, font_text_to_glyphs_cb);
cairo_font_face_set_user_data (this->face, &key, (void*)instance, (cairo_destroy_func_t) NULL);
}
static int new_UserFontFace (lua_State *L)
{
lua_remove(L, 1); // remove cairo.UserFontFace
cairo_font_face_t *ff = cairo_user_font_face_create ();
return new_FontFace(L, LUACAIRO ".UserFontFace.mt", ff, CAIRO_FONT_TYPE_USER, 1);
}
static cairo_font_face_t *
_cairo_font_face_twin_create_internal (void)
{
cairo_font_face_t *twin_font_face;
twin_font_face = cairo_user_font_face_create ();
cairo_user_font_face_set_init_func (twin_font_face, twin_scaled_font_init);
cairo_user_font_face_set_render_glyph_func (twin_font_face, twin_scaled_font_render_glyph);
cairo_user_font_face_set_unicode_to_glyph_func (twin_font_face, twin_scaled_font_unicode_to_glyph);
return twin_font_face;
}
cairo_font_face_t *
_cairo_font_face_twin_create (cairo_font_slant_t slant,
cairo_font_weight_t weight)
{
cairo_font_face_t *twin_font_face;
twin_font_face = cairo_user_font_face_create ();
cairo_user_font_face_set_init_func (twin_font_face, twin_scaled_font_init);
cairo_user_font_face_set_render_glyph_func (twin_font_face, twin_scaled_font_render_glyph);
cairo_user_font_face_set_unicode_to_glyph_func (twin_font_face, twin_scaled_font_unicode_to_glyph);
return twin_font_face;
}
cairo_status_t
_cairo_font_face_twin_create_for_toy (cairo_toy_font_face_t *toy_face,
cairo_font_face_t **font_face)
{
cairo_status_t status;
cairo_font_face_t *twin_font_face;
twin_font_face = cairo_user_font_face_create ();
cairo_user_font_face_set_init_func (twin_font_face, twin_scaled_font_init);
cairo_user_font_face_set_render_glyph_func (twin_font_face, twin_scaled_font_render_glyph);
cairo_user_font_face_set_unicode_to_glyph_func (twin_font_face, twin_scaled_font_unicode_to_glyph);
status = twin_font_face_set_properties_from_toy (twin_font_face, toy_face);
if (status) {
cairo_font_face_destroy (twin_font_face);
return status;
}
*font_face = twin_font_face;
return CAIRO_STATUS_SUCCESS;
}