HarfBuzz text shaping engine
http://harfbuzz.github.io/
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98 lines
3.2 KiB
98 lines
3.2 KiB
/* |
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* Copyright © 2019-2020 Ebrahim Byagowi |
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* |
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* This is part of HarfBuzz, a text shaping library. |
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* |
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* Permission is hereby granted, without written agreement and without |
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* license or royalty fees, to use, copy, modify, and distribute this |
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* software and its documentation for any purpose, provided that the |
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* above copyright notice and the following two paragraphs appear in |
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* all copies of this software. |
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* |
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
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* DAMAGE. |
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* |
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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*/ |
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#if !defined(HB_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR) |
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#error "Include <hb.h> instead." |
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#endif |
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#ifndef HB_DRAW_H |
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#define HB_DRAW_H |
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#include "hb.h" |
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HB_BEGIN_DECLS |
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#ifdef HB_EXPERIMENTAL_API |
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typedef void (*hb_draw_move_to_func_t) (hb_position_t to_x, hb_position_t to_y, void *user_data); |
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typedef void (*hb_draw_line_to_func_t) (hb_position_t to_x, hb_position_t to_y, void *user_data); |
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typedef void (*hb_draw_quadratic_to_func_t) (hb_position_t control_x, hb_position_t control_y, |
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hb_position_t to_x, hb_position_t to_y, |
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void *user_data); |
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typedef void (*hb_draw_cubic_to_func_t) (hb_position_t control1_x, hb_position_t control1_y, |
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hb_position_t control2_x, hb_position_t control2_y, |
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hb_position_t to_x, hb_position_t to_y, |
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void *user_data); |
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typedef void (*hb_draw_close_path_func_t) (void *user_data); |
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/** |
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* hb_draw_funcs_t: |
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* |
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* Glyph draw callbacks. |
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* |
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* _move_to, _line_to and _cubic_to calls are nessecary to be defined but we |
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* translate _quadratic_to calls to _cubic_to if the callback isn't defined. |
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* |
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* Since: EXPERIMENTAL |
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**/ |
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typedef struct hb_draw_funcs_t hb_draw_funcs_t; |
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HB_EXTERN void |
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hb_draw_funcs_set_move_to_func (hb_draw_funcs_t *funcs, |
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hb_draw_move_to_func_t move_to); |
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HB_EXTERN void |
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hb_draw_funcs_set_line_to_func (hb_draw_funcs_t *funcs, |
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hb_draw_line_to_func_t line_to); |
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HB_EXTERN void |
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hb_draw_funcs_set_quadratic_to_func (hb_draw_funcs_t *funcs, |
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hb_draw_quadratic_to_func_t quadratic_to); |
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HB_EXTERN void |
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hb_draw_funcs_set_cubic_to_func (hb_draw_funcs_t *funcs, |
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hb_draw_cubic_to_func_t cubic_to); |
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HB_EXTERN void |
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hb_draw_funcs_set_close_path_func (hb_draw_funcs_t *funcs, |
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hb_draw_close_path_func_t close_path); |
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HB_EXTERN hb_draw_funcs_t * |
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hb_draw_funcs_create (void); |
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HB_EXTERN hb_draw_funcs_t * |
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hb_draw_funcs_reference (hb_draw_funcs_t *funcs); |
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HB_EXTERN void |
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hb_draw_funcs_destroy (hb_draw_funcs_t *funcs); |
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HB_EXTERN void |
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hb_draw_funcs_make_immutable (hb_draw_funcs_t *funcs); |
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HB_EXTERN hb_bool_t |
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hb_draw_funcs_is_immutable (hb_draw_funcs_t *funcs); |
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#endif |
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HB_END_DECLS |
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#endif /* HB_DRAW_H */
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