| /* |
| * Copyright (C) 2009 Red Hat, Inc. |
| * |
| * This is part of HarfBuzz, an OpenType Layout engine 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. |
| * |
| * Red Hat Author(s): Behdad Esfahbod |
| */ |
| |
| #include "hb-private.h" |
| |
| #include "hb-unicode-private.h" |
| |
| /* |
| * hb_unicode_funcs_t |
| */ |
| |
| static hb_codepoint_t hb_unicode_get_mirroring_nil (hb_codepoint_t unicode) { return unicode; } |
| static hb_category_t hb_unicode_get_general_category_nil (hb_codepoint_t unicode) { return HB_CATEGORY_OTHER_LETTER; } |
| static hb_script_t hb_unicode_get_script_nil (hb_codepoint_t unicode) { return HB_SCRIPT_UNKNOWN; } |
| static unsigned int hb_unicode_get_combining_class_nil (hb_codepoint_t unicode) { return 0; } |
| static unsigned int hb_unicode_get_eastasian_width_nil (hb_codepoint_t unicode) { return 1; } |
| |
| hb_unicode_funcs_t _hb_unicode_funcs_nil = { |
| HB_REFERENCE_COUNT_INVALID, /* ref_count */ |
| |
| TRUE, /* immutable */ |
| |
| hb_unicode_get_general_category_nil, |
| hb_unicode_get_combining_class_nil, |
| hb_unicode_get_mirroring_nil, |
| hb_unicode_get_script_nil, |
| hb_unicode_get_eastasian_width_nil |
| }; |
| |
| hb_unicode_funcs_t * |
| hb_unicode_funcs_create (void) |
| { |
| hb_unicode_funcs_t *ufuncs; |
| |
| if (!HB_OBJECT_DO_CREATE (hb_unicode_funcs_t, ufuncs)) |
| return &_hb_unicode_funcs_nil; |
| |
| *ufuncs = _hb_unicode_funcs_nil; |
| HB_OBJECT_DO_INIT (ufuncs); |
| |
| return ufuncs; |
| } |
| |
| hb_unicode_funcs_t * |
| hb_unicode_funcs_reference (hb_unicode_funcs_t *ufuncs) |
| { |
| HB_OBJECT_DO_REFERENCE (ufuncs); |
| } |
| |
| unsigned int |
| hb_unicode_funcs_get_reference_count (hb_unicode_funcs_t *ufuncs) |
| { |
| HB_OBJECT_DO_GET_REFERENCE_COUNT (ufuncs); |
| } |
| |
| void |
| hb_unicode_funcs_destroy (hb_unicode_funcs_t *ufuncs) |
| { |
| HB_OBJECT_DO_DESTROY (ufuncs); |
| |
| free (ufuncs); |
| } |
| |
| hb_unicode_funcs_t * |
| hb_unicode_funcs_copy (hb_unicode_funcs_t *other_ufuncs) |
| { |
| hb_unicode_funcs_t *ufuncs; |
| |
| if (!HB_OBJECT_DO_CREATE (hb_unicode_funcs_t, ufuncs)) |
| return &_hb_unicode_funcs_nil; |
| |
| *ufuncs = *other_ufuncs; |
| HB_OBJECT_DO_INIT (ufuncs); |
| ufuncs->immutable = FALSE; |
| |
| return ufuncs; |
| } |
| |
| void |
| hb_unicode_funcs_make_immutable (hb_unicode_funcs_t *ufuncs) |
| { |
| if (HB_OBJECT_IS_INERT (ufuncs)) |
| return; |
| |
| ufuncs->immutable = TRUE; |
| } |
| |
| |
| void |
| hb_unicode_funcs_set_mirroring_func (hb_unicode_funcs_t *ufuncs, |
| hb_unicode_get_mirroring_func_t mirroring_func) |
| { |
| if (ufuncs->immutable) |
| return; |
| |
| ufuncs->get_mirroring = mirroring_func ? mirroring_func : hb_unicode_get_mirroring_nil; |
| } |
| |
| void |
| hb_unicode_funcs_set_general_category_func (hb_unicode_funcs_t *ufuncs, |
| hb_unicode_get_general_category_func_t general_category_func) |
| { |
| if (ufuncs->immutable) |
| return; |
| |
| ufuncs->get_general_category = general_category_func ? general_category_func : hb_unicode_get_general_category_nil; |
| } |
| |
| void |
| hb_unicode_funcs_set_script_func (hb_unicode_funcs_t *ufuncs, |
| hb_unicode_get_script_func_t script_func) |
| { |
| if (ufuncs->immutable) |
| return; |
| |
| ufuncs->get_script = script_func ? script_func : hb_unicode_get_script_nil; |
| } |
| |
| void |
| hb_unicode_funcs_set_combining_class_func (hb_unicode_funcs_t *ufuncs, |
| hb_unicode_get_combining_class_func_t combining_class_func) |
| { |
| if (ufuncs->immutable) |
| return; |
| |
| ufuncs->get_combining_class = combining_class_func ? combining_class_func : hb_unicode_get_combining_class_nil; |
| } |
| |
| void |
| hb_unicode_funcs_set_eastasian_width_func (hb_unicode_funcs_t *ufuncs, |
| hb_unicode_get_eastasian_width_func_t eastasian_width_func) |
| { |
| if (ufuncs->immutable) |
| return; |
| |
| ufuncs->get_eastasian_width = eastasian_width_func ? eastasian_width_func : hb_unicode_get_eastasian_width_nil; |
| } |
| |