include/harfbuzz/hb-deprecated.h

0001 /*
0002  * Copyright © 2013  Google, Inc.
0003  *
0004  *  This is part of HarfBuzz, a text shaping library.
0005  *
0006  * Permission is hereby granted, without written agreement and without
0007  * license or royalty fees, to use, copy, modify, and distribute this
0008  * software and its documentation for any purpose, provided that the
0009  * above copyright notice and the following two paragraphs appear in
0010  * all copies of this software.
0011  *
0012  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
0013  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
0014  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
0015  * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
0016  * DAMAGE.
0017  *
0018  * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
0019  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
0020  * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
0021  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
0022  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
0023  *
0024  * Google Author(s): Behdad Esfahbod
0025  */
0026
0027 #if !defined(HB_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR)
0028 #error "Include <hb.h> instead."
0029 #endif
0030
0031 #ifndef HB_DEPRECATED_H
0032 #define HB_DEPRECATED_H
0033
0034 #include "hb-common.h"
0035 #include "hb-unicode.h"
0036 #include "hb-font.h"
0037 #include "hb-set.h"
0038
0039
0040 /**
0041  * SECTION:hb-deprecated
0042  * @title: hb-deprecated
0043  * @short_description: Deprecated API
0044  * @include: hb.h
0045  *
0046  * These API have been deprecated in favor of newer API, or because they
0047  * were deemed unnecessary.
0048  **/
0049
0050
0051 HB_BEGIN_DECLS
0052
0053 #ifndef HB_DISABLE_DEPRECATED
0054
0055
0056 /**
0057  * HB_SCRIPT_CANADIAN_ABORIGINAL:
0058  *
0059  * Use #HB_SCRIPT_CANADIAN_SYLLABICS instead.
0060  *
0061  * Deprecated: 0.9.20
0062  */
0063 #define HB_SCRIPT_CANADIAN_ABORIGINAL       HB_SCRIPT_CANADIAN_SYLLABICS
0064
0065 /**
0066  * HB_BUFFER_FLAGS_DEFAULT:
0067  *
0068  * Use #HB_BUFFER_FLAG_DEFAULT instead.
0069  *
0070  * Deprecated: 0.9.20
0071  */
0072 #define HB_BUFFER_FLAGS_DEFAULT         HB_BUFFER_FLAG_DEFAULT
0073 /**
0074  * HB_BUFFER_SERIALIZE_FLAGS_DEFAULT:
0075  *
0076  * Use #HB_BUFFER_SERIALIZE_FLAG_DEFAULT instead.
0077  *
0078  * Deprecated: 0.9.20
0079  */
0080 #define HB_BUFFER_SERIALIZE_FLAGS_DEFAULT   HB_BUFFER_SERIALIZE_FLAG_DEFAULT
0081
0082 /**
0083  * hb_font_get_glyph_func_t:
0084  * @font: #hb_font_t to work upon
0085  * @font_data: @font user data pointer
0086  * @unicode: The Unicode code point to query
0087  * @variation_selector: The  variation-selector code point to query
0088  * @glyph: (out): The glyph ID retrieved
0089  * @user_data: User data pointer passed by the caller
0090  *
0091  * A virtual method for the #hb_font_funcs_t of an #hb_font_t object.
0092  *
0093  * This method should retrieve the glyph ID for a specified Unicode code point
0094  * font, with an optional variation selector.
0095  *
0096  * Return value: `true` if data found, `false` otherwise
0097  * Deprecated: 1.2.3
0098  *
0099  **/
0100 typedef hb_bool_t (*hb_font_get_glyph_func_t) (hb_font_t *font, void *font_data,
0101                            hb_codepoint_t unicode, hb_codepoint_t variation_selector,
0102                            hb_codepoint_t *glyph,
0103                            void *user_data);
0104
0105 HB_DEPRECATED_FOR (hb_font_funcs_set_nominal_glyph_func and hb_font_funcs_set_variation_glyph_func)
0106 HB_EXTERN void
0107 hb_font_funcs_set_glyph_func (hb_font_funcs_t *ffuncs,
0108                   hb_font_get_glyph_func_t func,
0109                   void *user_data, hb_destroy_func_t destroy);
0110
0111 /* https://github.com/harfbuzz/harfbuzz/pull/4207 */
0112 /**
0113  * HB_UNICODE_COMBINING_CLASS_CCC133:
0114  *
0115  * [Tibetan]
0116  *
0117  * Deprecated: 7.2.0
0118  **/
0119 #define HB_UNICODE_COMBINING_CLASS_CCC133 133
0120
0121 /**
0122  * hb_unicode_eastasian_width_func_t:
0123  * @ufuncs: A Unicode-functions structure
0124  * @unicode: The code point to query
0125  * @user_data: User data pointer passed by the caller
0126  *
0127  * A virtual method for the #hb_unicode_funcs_t structure.
0128  *
0129  * Deprecated: 2.0.0
0130  */
0131 typedef unsigned int            (*hb_unicode_eastasian_width_func_t)    (hb_unicode_funcs_t *ufuncs,
0132                                          hb_codepoint_t      unicode,
0133                                          void               *user_data);
0134
0135 /**
0136  * hb_unicode_funcs_set_eastasian_width_func:
0137  * @ufuncs: a Unicode-function structure
0138  * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
0139  * @user_data: Data to pass to @func
0140  * @destroy: (nullable): The function to call when @user_data is not needed anymore
0141  *
0142  * Sets the implementation function for #hb_unicode_eastasian_width_func_t.
0143  *
0144  * Since: 0.9.2
0145  * Deprecated: 2.0.0
0146  **/
0147 HB_EXTERN HB_DEPRECATED void
0148 hb_unicode_funcs_set_eastasian_width_func (hb_unicode_funcs_t *ufuncs,
0149                        hb_unicode_eastasian_width_func_t func,
0150                        void *user_data, hb_destroy_func_t destroy);
0151
0152 /**
0153  * hb_unicode_eastasian_width:
0154  * @ufuncs: a Unicode-function structure
0155  * @unicode: The code point to query
0156  *
0157  * Don't use. Not used by HarfBuzz.
0158  *
0159  * Since: 0.9.2
0160  * Deprecated: 2.0.0
0161  **/
0162 HB_EXTERN HB_DEPRECATED unsigned int
0163 hb_unicode_eastasian_width (hb_unicode_funcs_t *ufuncs,
0164                 hb_codepoint_t unicode);
0165
0166
0167 /**
0168  * hb_unicode_decompose_compatibility_func_t:
0169  * @ufuncs: a Unicode function structure
0170  * @u: codepoint to decompose
0171  * @decomposed: address of codepoint array (of length #HB_UNICODE_MAX_DECOMPOSITION_LEN) to write decomposition into
0172  * @user_data: user data pointer as passed to hb_unicode_funcs_set_decompose_compatibility_func()
0173  *
0174  * Fully decompose @u to its Unicode compatibility decomposition. The codepoints of the decomposition will be written to @decomposed.
0175  * The complete length of the decomposition will be returned.
0176  *
0177  * If @u has no compatibility decomposition, zero should be returned.
0178  *
0179  * The Unicode standard guarantees that a buffer of length #HB_UNICODE_MAX_DECOMPOSITION_LEN codepoints will always be sufficient for any
0180  * compatibility decomposition plus an terminating value of 0.  Consequently, @decompose must be allocated by the caller to be at least this length.  Implementations
0181  * of this function type must ensure that they do not write past the provided array.
0182  *
0183  * Return value: number of codepoints in the full compatibility decomposition of @u, or 0 if no decomposition available.
0184  *
0185  * Deprecated: 2.0.0
0186  */
0187 typedef unsigned int            (*hb_unicode_decompose_compatibility_func_t)    (hb_unicode_funcs_t *ufuncs,
0188                                              hb_codepoint_t      u,
0189                                              hb_codepoint_t     *decomposed,
0190                                              void               *user_data);
0191
0192 /**
0193  * HB_UNICODE_MAX_DECOMPOSITION_LEN:
0194  *
0195  * See Unicode 6.1 for details on the maximum decomposition length.
0196  *
0197  * Deprecated: 2.0.0
0198  */
0199 #define HB_UNICODE_MAX_DECOMPOSITION_LEN (18+1) /* codepoints */
0200
0201 /**
0202  * hb_unicode_funcs_set_decompose_compatibility_func:
0203  * @ufuncs: A Unicode-functions structure
0204  * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
0205  * @user_data: Data to pass to @func
0206  * @destroy: (nullable): The function to call when @user_data is not needed anymore
0207  *
0208  * Sets the implementation function for #hb_unicode_decompose_compatibility_func_t.
0209  *
0210  *
0211  *
0212  * Since: 0.9.2
0213  * Deprecated: 2.0.0
0214  **/
0215 HB_EXTERN HB_DEPRECATED void
0216 hb_unicode_funcs_set_decompose_compatibility_func (hb_unicode_funcs_t *ufuncs,
0217                            hb_unicode_decompose_compatibility_func_t func,
0218                            void *user_data, hb_destroy_func_t destroy);
0219
0220 HB_EXTERN HB_DEPRECATED unsigned int
0221 hb_unicode_decompose_compatibility (hb_unicode_funcs_t *ufuncs,
0222                     hb_codepoint_t      u,
0223                     hb_codepoint_t     *decomposed);
0224
0225
0226 /**
0227  * hb_font_get_glyph_v_kerning_func_t:
0228  *
0229  * A virtual method for the #hb_font_funcs_t of an #hb_font_t object.
0230  *
0231  * This method should retrieve the kerning-adjustment value for a glyph-pair in
0232  * the specified font, for vertical text segments.
0233  *
0234  **/
0235 typedef hb_font_get_glyph_kerning_func_t hb_font_get_glyph_v_kerning_func_t;
0236
0237 /**
0238  * hb_font_funcs_set_glyph_v_kerning_func:
0239  * @ffuncs: A font-function structure
0240  * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
0241  * @user_data: Data to pass to @func
0242  * @destroy: (nullable): The function to call when @user_data is not needed anymore
0243  *
0244  * Sets the implementation function for #hb_font_get_glyph_v_kerning_func_t.
0245  *
0246  * Since: 0.9.2
0247  * Deprecated: 2.0.0
0248  **/
0249 HB_EXTERN void
0250 hb_font_funcs_set_glyph_v_kerning_func (hb_font_funcs_t *ffuncs,
0251                     hb_font_get_glyph_v_kerning_func_t func,
0252                     void *user_data, hb_destroy_func_t destroy);
0253
0254 HB_EXTERN hb_position_t
0255 hb_font_get_glyph_v_kerning (hb_font_t *font,
0256                  hb_codepoint_t top_glyph, hb_codepoint_t bottom_glyph);
0257
0258
0259 /**
0260  * hb_font_get_glyph_shape_func_t:
0261  * @font: #hb_font_t to work upon
0262  * @font_data: @font user data pointer
0263  * @glyph: The glyph ID to query
0264  * @draw_funcs: The draw functions to send the shape data to
0265  * @draw_data: The data accompanying the draw functions
0266  * @user_data: User data pointer passed by the caller
0267  *
0268  * A virtual method for the #hb_font_funcs_t of an #hb_font_t object.
0269  *
0270  * Since: 4.0.0
0271  * Deprecated: 7.0.0: Use #hb_font_draw_glyph_func_t instead
0272  **/
0273 typedef void (*hb_font_get_glyph_shape_func_t) (hb_font_t *font, void *font_data,
0274                         hb_codepoint_t glyph,
0275                         hb_draw_funcs_t *draw_funcs, void *draw_data,
0276                         void *user_data);
0277
0278 /**
0279  * hb_font_funcs_set_glyph_shape_func:
0280  * @ffuncs: A font-function structure
0281  * @func: (closure user_data) (destroy destroy) (scope notified): The callback function to assign
0282  * @user_data: Data to pass to @func
0283  * @destroy: (nullable): The function to call when @user_data is not needed anymore
0284  *
0285  * Sets the implementation function for #hb_font_get_glyph_shape_func_t,
0286  * which is the same as #hb_font_draw_glyph_func_t.
0287  *
0288  * Since: 4.0.0
0289  * Deprecated: 7.0.0: Use hb_font_funcs_set_draw_glyph_func() instead
0290  **/
0291 HB_DEPRECATED_FOR (hb_font_funcs_set_draw_glyph_func)
0292 HB_EXTERN void
0293 hb_font_funcs_set_glyph_shape_func (hb_font_funcs_t *ffuncs,
0294                     hb_font_get_glyph_shape_func_t func,
0295                     void *user_data, hb_destroy_func_t destroy);
0296
0297 HB_DEPRECATED_FOR (hb_font_draw_glyph)
0298 HB_EXTERN void
0299 hb_font_get_glyph_shape (hb_font_t *font,
0300              hb_codepoint_t glyph,
0301              hb_draw_funcs_t *dfuncs, void *draw_data);
0302
0303
0304 /**
0305  * HB_AAT_LAYOUT_FEATURE_TYPE_CURISVE_CONNECTION:
0306  *
0307  * Use #HB_AAT_LAYOUT_FEATURE_TYPE_CURSIVE_CONNECTION instead.
0308  *
0309  * Deprecated: 8.3.0
0310  */
0311 #define HB_AAT_LAYOUT_FEATURE_TYPE_CURISVE_CONNECTION HB_AAT_LAYOUT_FEATURE_TYPE_CURSIVE_CONNECTION
0312
0313 #endif
0314
0315
0316 HB_END_DECLS
0317
0318 #endif /* HB_DEPRECATED_H */