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