hb-shape-plan.h
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/*
* Copyright © 2012 Google, Inc.
*
* 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.
*
* Google Author(s): Behdad Esfahbod
*/
#if !defined(HB_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR)
#error "Include <hb.h> instead."
#endif
#ifndef HB_SHAPE_PLAN_H
#define HB_SHAPE_PLAN_H
#include "hb-common.h"
#include "hb-font.h"
HB_BEGIN_DECLS
/**
* hb_shape_plan_t:
*
* Data type for holding a shaping plan.
*
* Shape plans contain information about how HarfBuzz will shape a
* particular text segment, based on the segment's properties and the
* capabilities in the font face in use.
*
* Shape plans can be queried about how shaping will perform, given a set
* of specific input parameters (script, language, direction, features,
* etc.).
*
**/
typedef struct hb_shape_plan_t hb_shape_plan_t;
HB_EXTERN hb_shape_plan_t *
hb_shape_plan_create (hb_face_t *face,
const hb_segment_properties_t *props,
const hb_feature_t *user_features,
unsigned int num_user_features,
const char * const *shaper_list);
HB_EXTERN hb_shape_plan_t *
hb_shape_plan_create_cached (hb_face_t *face,
const hb_segment_properties_t *props,
const hb_feature_t *user_features,
unsigned int num_user_features,
const char * const *shaper_list);
HB_EXTERN hb_shape_plan_t *
hb_shape_plan_create2 (hb_face_t *face,
const hb_segment_properties_t *props,
const hb_feature_t *user_features,
unsigned int num_user_features,
const int *coords,
unsigned int num_coords,
const char * const *shaper_list);
HB_EXTERN hb_shape_plan_t *
hb_shape_plan_create_cached2 (hb_face_t *face,
const hb_segment_properties_t *props,
const hb_feature_t *user_features,
unsigned int num_user_features,
const int *coords,
unsigned int num_coords,
const char * const *shaper_list);
HB_EXTERN hb_shape_plan_t *
hb_shape_plan_get_empty (void);
HB_EXTERN hb_shape_plan_t *
hb_shape_plan_reference (hb_shape_plan_t *shape_plan);
HB_EXTERN void
hb_shape_plan_destroy (hb_shape_plan_t *shape_plan);
HB_EXTERN hb_bool_t
hb_shape_plan_set_user_data (hb_shape_plan_t *shape_plan,
hb_user_data_key_t *key,
void * data,
hb_destroy_func_t destroy,
hb_bool_t replace);
HB_EXTERN void *
hb_shape_plan_get_user_data (hb_shape_plan_t *shape_plan,
hb_user_data_key_t *key);
HB_EXTERN hb_bool_t
hb_shape_plan_execute (hb_shape_plan_t *shape_plan,
hb_font_t *font,
hb_buffer_t *buffer,
const hb_feature_t *features,
unsigned int num_features);
HB_EXTERN const char *
hb_shape_plan_get_shaper (hb_shape_plan_t *shape_plan);
HB_END_DECLS
#endif /* HB_SHAPE_PLAN_H */