/*
- * Copyright (C) 2009 Red Hat, Inc.
+ * Copyright © 2009 Red Hat, Inc.
*
* This is part of HarfBuzz, a text shaping library.
*
*/
hb_face_t *
-hb_face_create_for_data (hb_blob_t *blob,
- unsigned int index);
+hb_face_create (hb_blob_t *blob,
+ unsigned int index);
-typedef hb_blob_t * (*hb_get_table_func_t) (hb_tag_t tag, void *user_data);
+typedef hb_blob_t * (*hb_get_table_func_t) (hb_face_t *face, hb_tag_t tag, void *user_data);
/* calls destroy() when not needing user_data anymore */
hb_face_t *
hb_face_create_for_tables (hb_get_table_func_t get_table,
- hb_destroy_func_t destroy,
- void *user_data);
+ void *user_data,
+ hb_destroy_func_t destroy);
hb_face_t *
-hb_face_reference (hb_face_t *face);
+hb_face_get_empty (void);
-unsigned int
-hb_face_get_reference_count (hb_face_t *face);
+hb_face_t *
+hb_face_reference (hb_face_t *face);
void
hb_face_destroy (hb_face_t *face);
-/* XXX
- *
- * I have two major concerns about this API as it is right now:
- *
- * - Jonathan Kew convinced me to make it return NULL if table not found (280af1bd),
- * however, that is WRONG IMO. The API should not differentiate between a non-existing
- * table vs a zero-length table vs a very short table. It only leads to implementations
- * that check for non-NULL and assume that they've got a usable table going on... This
- * actually happened with Firefox.
- *
- * - It has to be renamed to reference_table() since unlike any other _get_ API, a reference
- * ownership transfer happens and the user is responsible to destroy the result.
- */
+hb_bool_t
+hb_face_set_user_data (hb_face_t *face,
+ hb_user_data_key_t *key,
+ void * data,
+ hb_destroy_func_t destroy);
+
+
+void *
+hb_face_get_user_data (hb_face_t *face,
+ hb_user_data_key_t *key);
+
+void
+hb_face_make_immutable (hb_face_t *face);
+
+hb_bool_t
+hb_face_is_immutable (hb_face_t *face);
+
+
hb_blob_t *
-hb_face_get_table (hb_face_t *face,
- hb_tag_t tag);
+hb_face_reference_table (hb_face_t *face,
+ hb_tag_t tag);
unsigned int
hb_face_get_upem (hb_face_t *face);
hb_font_funcs_create (void);
hb_font_funcs_t *
-hb_font_funcs_reference (hb_font_funcs_t *ffuncs);
+hb_font_funcs_get_empty (void);
-unsigned int
-hb_font_funcs_get_reference_count (hb_font_funcs_t *ffuncs);
+hb_font_funcs_t *
+hb_font_funcs_reference (hb_font_funcs_t *ffuncs);
void
hb_font_funcs_destroy (hb_font_funcs_t *ffuncs);
-hb_font_funcs_t *
-hb_font_funcs_copy (hb_font_funcs_t *ffuncs);
+hb_bool_t
+hb_font_funcs_set_user_data (hb_font_funcs_t *ffuncs,
+ hb_user_data_key_t *key,
+ void * data,
+ hb_destroy_func_t destroy);
+
+
+void *
+hb_font_funcs_get_user_data (hb_font_funcs_t *ffuncs,
+ hb_user_data_key_t *key);
+
void
hb_font_funcs_make_immutable (hb_font_funcs_t *ffuncs);
typedef struct _hb_glyph_extents_t
{
- hb_position_t x_bearing;
- hb_position_t y_bearing;
- hb_position_t width;
- hb_position_t height;
+ hb_position_t x_bearing;
+ hb_position_t y_bearing;
+ hb_position_t width;
+ hb_position_t height;
} hb_glyph_extents_t;
-typedef hb_codepoint_t (*hb_font_get_glyph_func_t) (hb_font_t *font, hb_face_t *face, const void *user_data,
- hb_codepoint_t unicode, hb_codepoint_t variation_selector);
-typedef void (*hb_font_get_glyph_advance_func_t) (hb_font_t *font, hb_face_t *face, const void *user_data,
- hb_codepoint_t glyph,
- hb_position_t *x_advance, hb_position_t *y_advance);
-typedef void (*hb_font_get_glyph_extents_func_t) (hb_font_t *font, hb_face_t *face, const void *user_data,
- hb_codepoint_t glyph,
- hb_glyph_extents_t *metrics);
-typedef hb_bool_t (*hb_font_get_contour_point_func_t) (hb_font_t *font, hb_face_t *face, const void *user_data,
- unsigned int point_index, hb_codepoint_t glyph,
- hb_position_t *x, hb_position_t *y);
-typedef hb_position_t (*hb_font_get_kerning_func_t) (hb_font_t *font, hb_face_t *face, const void *user_data,
- hb_codepoint_t first_glyph, hb_codepoint_t second_glyph);
+/* func types */
+
+typedef hb_bool_t (*hb_font_get_glyph_func_t) (hb_font_t *font, void *font_data,
+ hb_codepoint_t unicode, hb_codepoint_t variation_selector,
+ hb_codepoint_t *glyph,
+ void *user_data);
+
+
+typedef hb_position_t (*hb_font_get_glyph_advance_func_t) (hb_font_t *font, void *font_data,
+ hb_codepoint_t glyph,
+ void *user_data);
+typedef hb_font_get_glyph_advance_func_t hb_font_get_glyph_h_advance_func_t;
+typedef hb_font_get_glyph_advance_func_t hb_font_get_glyph_v_advance_func_t;
+
+typedef hb_bool_t (*hb_font_get_glyph_origin_func_t) (hb_font_t *font, void *font_data,
+ hb_codepoint_t glyph,
+ hb_position_t *x, hb_position_t *y,
+ void *user_data);
+typedef hb_font_get_glyph_origin_func_t hb_font_get_glyph_h_origin_func_t;
+typedef hb_font_get_glyph_origin_func_t hb_font_get_glyph_v_origin_func_t;
+
+typedef hb_position_t (*hb_font_get_glyph_kerning_func_t) (hb_font_t *font, void *font_data,
+ hb_codepoint_t first_glyph, hb_codepoint_t second_glyph,
+ void *user_data);
+typedef hb_font_get_glyph_kerning_func_t hb_font_get_glyph_h_kerning_func_t;
+typedef hb_font_get_glyph_kerning_func_t hb_font_get_glyph_v_kerning_func_t;
+
+
+typedef hb_bool_t (*hb_font_get_glyph_extents_func_t) (hb_font_t *font, void *font_data,
+ hb_codepoint_t glyph,
+ hb_glyph_extents_t *extents,
+ void *user_data);
+typedef hb_bool_t (*hb_font_get_glyph_contour_point_func_t) (hb_font_t *font, void *font_data,
+ hb_codepoint_t glyph, unsigned int point_index,
+ hb_position_t *x, hb_position_t *y,
+ void *user_data);
+
+
+/* func setters */
void
hb_font_funcs_set_glyph_func (hb_font_funcs_t *ffuncs,
- hb_font_get_glyph_func_t glyph_func);
+ hb_font_get_glyph_func_t glyph_func,
+ void *user_data, hb_destroy_func_t destroy);
void
-hb_font_funcs_set_glyph_advance_func (hb_font_funcs_t *ffuncs,
- hb_font_get_glyph_advance_func_t glyph_advance_func);
+hb_font_funcs_set_glyph_h_advance_func (hb_font_funcs_t *ffuncs,
+ hb_font_get_glyph_h_advance_func_t func,
+ void *user_data, hb_destroy_func_t destroy);
+void
+hb_font_funcs_set_glyph_v_advance_func (hb_font_funcs_t *ffuncs,
+ hb_font_get_glyph_v_advance_func_t func,
+ void *user_data, hb_destroy_func_t destroy);
void
-hb_font_funcs_set_glyph_extents_func (hb_font_funcs_t *ffuncs,
- hb_font_get_glyph_extents_func_t glyph_extents_func);
+hb_font_funcs_set_glyph_h_origin_func (hb_font_funcs_t *ffuncs,
+ hb_font_get_glyph_h_origin_func_t func,
+ void *user_data, hb_destroy_func_t destroy);
+void
+hb_font_funcs_set_glyph_v_origin_func (hb_font_funcs_t *ffuncs,
+ hb_font_get_glyph_v_origin_func_t func,
+ void *user_data, hb_destroy_func_t destroy);
void
-hb_font_funcs_set_contour_point_func (hb_font_funcs_t *ffuncs,
- hb_font_get_contour_point_func_t contour_point_func);
+hb_font_funcs_set_glyph_h_kerning_func (hb_font_funcs_t *ffuncs,
+ hb_font_get_glyph_h_kerning_func_t func,
+ void *user_data, hb_destroy_func_t destroy);
+void
+hb_font_funcs_set_glyph_v_kerning_func (hb_font_funcs_t *ffuncs,
+ hb_font_get_glyph_v_kerning_func_t func,
+ void *user_data, hb_destroy_func_t destroy);
void
-hb_font_funcs_set_kerning_func (hb_font_funcs_t *ffuncs,
- hb_font_get_kerning_func_t kerning_func);
+hb_font_funcs_set_glyph_extents_func (hb_font_funcs_t *ffuncs,
+ hb_font_get_glyph_extents_func_t func,
+ void *user_data, hb_destroy_func_t destroy);
+void
+hb_font_funcs_set_glyph_contour_point_func (hb_font_funcs_t *ffuncs,
+ hb_font_get_glyph_contour_point_func_t func,
+ void *user_data, hb_destroy_func_t destroy);
-/* These never return NULL. Return fallback defaults instead. */
+/* func dispatch */
+
+hb_bool_t
+hb_font_get_glyph (hb_font_t *font,
+ hb_codepoint_t unicode, hb_codepoint_t variation_selector,
+ hb_codepoint_t *glyph);
-hb_font_get_glyph_func_t
-hb_font_funcs_get_glyph_func (hb_font_funcs_t *ffuncs);
+hb_position_t
+hb_font_get_glyph_h_advance (hb_font_t *font,
+ hb_codepoint_t glyph);
+hb_position_t
+hb_font_get_glyph_v_advance (hb_font_t *font,
+ hb_codepoint_t glyph);
-hb_font_get_glyph_advance_func_t
-hb_font_funcs_get_glyph_advance_func (hb_font_funcs_t *ffuncs);
+hb_bool_t
+hb_font_get_glyph_h_origin (hb_font_t *font,
+ hb_codepoint_t glyph,
+ hb_position_t *x, hb_position_t *y);
+hb_bool_t
+hb_font_get_glyph_v_origin (hb_font_t *font,
+ hb_codepoint_t glyph,
+ hb_position_t *x, hb_position_t *y);
-hb_font_get_glyph_extents_func_t
-hb_font_funcs_get_glyph_extents_func (hb_font_funcs_t *ffuncs);
+hb_position_t
+hb_font_get_glyph_h_kerning (hb_font_t *font,
+ hb_codepoint_t left_glyph, hb_codepoint_t right_glyph);
+hb_position_t
+hb_font_get_glyph_v_kerning (hb_font_t *font,
+ hb_codepoint_t top_glyph, hb_codepoint_t bottom_glyph);
-hb_font_get_contour_point_func_t
-hb_font_funcs_get_contour_point_func (hb_font_funcs_t *ffuncs);
+hb_bool_t
+hb_font_get_glyph_extents (hb_font_t *font,
+ hb_codepoint_t glyph,
+ hb_glyph_extents_t *extents);
-hb_font_get_kerning_func_t
-hb_font_funcs_get_kerning_func (hb_font_funcs_t *ffuncs);
+hb_bool_t
+hb_font_get_glyph_contour_point (hb_font_t *font,
+ hb_codepoint_t glyph, unsigned int point_index,
+ hb_position_t *x, hb_position_t *y);
-hb_codepoint_t
-hb_font_get_glyph (hb_font_t *font, hb_face_t *face,
- hb_codepoint_t unicode, hb_codepoint_t variation_selector);
+/* high-level funcs, with fallback */
void
-hb_font_get_glyph_advance (hb_font_t *font, hb_face_t *face,
- hb_codepoint_t glyph,
- hb_position_t *x_advance, hb_position_t *y_advance);
+hb_font_get_glyph_advance_for_direction (hb_font_t *font,
+ hb_codepoint_t glyph,
+ hb_direction_t direction,
+ hb_position_t *x, hb_position_t *y);
+void
+hb_font_get_glyph_origin_for_direction (hb_font_t *font,
+ hb_codepoint_t glyph,
+ hb_direction_t direction,
+ hb_position_t *x, hb_position_t *y);
+void
+hb_font_add_glyph_origin_for_direction (hb_font_t *font,
+ hb_codepoint_t glyph,
+ hb_direction_t direction,
+ hb_position_t *x, hb_position_t *y);
+void
+hb_font_subtract_glyph_origin_for_direction (hb_font_t *font,
+ hb_codepoint_t glyph,
+ hb_direction_t direction,
+ hb_position_t *x, hb_position_t *y);
void
-hb_font_get_glyph_extents (hb_font_t *font, hb_face_t *face,
- hb_codepoint_t glyph,
- hb_glyph_extents_t *metrics);
+hb_font_get_glyph_kerning_for_direction (hb_font_t *font,
+ hb_codepoint_t first_glyph, hb_codepoint_t second_glyph,
+ hb_direction_t direction,
+ hb_position_t *x, hb_position_t *y);
hb_bool_t
-hb_font_get_contour_point (hb_font_t *font, hb_face_t *face,
- unsigned int point_index, hb_codepoint_t glyph,
- hb_position_t *x, hb_position_t *y);
+hb_font_get_glyph_extents_for_origin (hb_font_t *font,
+ hb_codepoint_t glyph,
+ hb_direction_t direction,
+ hb_glyph_extents_t *extents);
-hb_position_t
-hb_font_get_kerning (hb_font_t *font, hb_face_t *face,
- hb_codepoint_t first_glyph, hb_codepoint_t second_glyph);
+hb_bool_t
+hb_font_get_glyph_contour_point_for_origin (hb_font_t *font,
+ hb_codepoint_t glyph, unsigned int point_index,
+ hb_direction_t direction,
+ hb_position_t *x, hb_position_t *y);
/*
/* Fonts are very light-weight objects */
hb_font_t *
-hb_font_create (void);
+hb_font_create (hb_face_t *face);
hb_font_t *
-hb_font_reference (hb_font_t *font);
+hb_font_create_sub_font (hb_font_t *parent);
-unsigned int
-hb_font_get_reference_count (hb_font_t *font);
+hb_font_t *
+hb_font_get_empty (void);
+
+hb_font_t *
+hb_font_reference (hb_font_t *font);
void
hb_font_destroy (hb_font_t *font);
+hb_bool_t
+hb_font_set_user_data (hb_font_t *font,
+ hb_user_data_key_t *key,
+ void * data,
+ hb_destroy_func_t destroy);
+
+
+void *
+hb_font_get_user_data (hb_font_t *font,
+ hb_user_data_key_t *key);
+
void
-hb_font_set_funcs (hb_font_t *font,
- hb_font_funcs_t *klass,
- hb_destroy_func_t destroy,
- void *user_data);
+hb_font_make_immutable (hb_font_t *font);
+
+hb_bool_t
+hb_font_is_immutable (hb_font_t *font);
+
+hb_font_t *
+hb_font_get_parent (hb_font_t *font);
+
+hb_face_t *
+hb_font_get_face (hb_font_t *font);
+
-/* Returns what was set and unsets it, but doesn't destroy(user_data).
- * This is useful for wrapping / chaining font_funcs_t's.
- *
- * The client is responsible for:
- *
- * - Take ownership of the reference on the returned klass,
- *
- * - Calling "destroy(user_data)" exactly once if returned destroy func
- * is not NULL and the returned info is not needed anymore.
- */
void
-hb_font_unset_funcs (hb_font_t *font,
- hb_font_funcs_t **klass,
- hb_destroy_func_t *destroy,
- void **user_data);
+hb_font_set_funcs (hb_font_t *font,
+ hb_font_funcs_t *klass,
+ void *font_data,
+ hb_destroy_func_t destroy);
-/*
- * We should add support for full matrices.
- */
void
hb_font_set_scale (hb_font_t *font,
- unsigned int x_scale,
- unsigned int y_scale);
+ int x_scale,
+ int y_scale);
void
hb_font_get_scale (hb_font_t *font,
- unsigned int *x_scale,
- unsigned int *y_scale);
+ int *x_scale,
+ int *y_scale);
/*
* A zero value means "no hinting in that direction"
projects / framework / uifw / harfbuzz.git / blobdiff