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Diffstat (limited to '')
| -rw-r--r-- | gfx/harfbuzz/src/hb-map.cc | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/gfx/harfbuzz/src/hb-map.cc b/gfx/harfbuzz/src/hb-map.cc new file mode 100644 index 0000000000..f898bd8f92 --- /dev/null +++ b/gfx/harfbuzz/src/hb-map.cc @@ -0,0 +1,289 @@ +/* + * Copyright © 2018 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 + */ + +#include "hb-map.hh" + + +/** + * SECTION:hb-map + * @title: hb-map + * @short_description: Object representing integer to integer mapping + * @include: hb.h + * + * Map objects are integer-to-integer hash-maps. Currently they are + * not used in the HarfBuzz public API, but are provided for client's + * use if desired. + **/ + + +/** + * hb_map_create: (Xconstructor) + * + * Creates a new, initially empty map. + * + * Return value: (transfer full): The new #hb_map_t + * + * Since: 1.7.7 + **/ +hb_map_t * +hb_map_create () +{ + hb_map_t *map; + + if (!(map = hb_object_create<hb_map_t> ())) + return hb_map_get_empty (); + + map->init_shallow (); + + return map; +} + +/** + * hb_map_get_empty: + * + * Fetches the singleton empty #hb_map_t. + * + * Return value: (transfer full): The empty #hb_map_t + * + * Since: 1.7.7 + **/ +hb_map_t * +hb_map_get_empty () +{ + return const_cast<hb_map_t *> (&Null (hb_map_t)); +} + +/** + * hb_map_reference: (skip) + * @map: A map + * + * Increases the reference count on a map. + * + * Return value: (transfer full): The map + * + * Since: 1.7.7 + **/ +hb_map_t * +hb_map_reference (hb_map_t *map) +{ + return hb_object_reference (map); +} + +/** + * hb_map_destroy: (skip) + * @map: A map + * + * Decreases the reference count on a map. When + * the reference count reaches zero, the map is + * destroyed, freeing all memory. + * + * Since: 1.7.7 + **/ +void +hb_map_destroy (hb_map_t *map) +{ + if (!hb_object_destroy (map)) return; + + map->fini_shallow (); + + free (map); +} + +/** + * hb_map_set_user_data: (skip) + * @map: A map + * @key: The user-data key to set + * @data: A pointer to the user data to set + * @destroy: (optional): A callback to call when @data is not needed anymore + * @replace: Whether to replace an existing data with the same key + * + * Attaches a user-data key/data pair to the specified map. + * + * Return value: %true if success, %false otherwise + * + * Since: 1.7.7 + **/ +hb_bool_t +hb_map_set_user_data (hb_map_t *map, + hb_user_data_key_t *key, + void * data, + hb_destroy_func_t destroy, + hb_bool_t replace) +{ + return hb_object_set_user_data (map, key, data, destroy, replace); +} + +/** + * hb_map_get_user_data: (skip) + * @map: A map + * @key: The user-data key to query + * + * Fetches the user data associated with the specified key, + * attached to the specified map. + * + * Return value: (transfer none): A pointer to the user data + * + * Since: 1.7.7 + **/ +void * +hb_map_get_user_data (hb_map_t *map, + hb_user_data_key_t *key) +{ + return hb_object_get_user_data (map, key); +} + + +/** + * hb_map_allocation_successful: + * @map: A map + * + * Tests whether memory allocation for a set was successful. + * + * Return value: %true if allocation succeeded, false otherwise + * + * Since: 1.7.7 + **/ +hb_bool_t +hb_map_allocation_successful (const hb_map_t *map) +{ + return map->successful; +} + + +/** + * hb_map_set: + * @map: A map + * @key: The key to store in the map + * @value: The value to store for @key + * + * Stores @key:@value in the map. + * + * Since: 1.7.7 + **/ +void +hb_map_set (hb_map_t *map, + hb_codepoint_t key, + hb_codepoint_t value) +{ + map->set (key, value); +} + +/** + * hb_map_get: + * @map: A map + * @key: The key to query + * + * Fetches the value stored for @key in @map. + * + * Since: 1.7.7 + **/ +hb_codepoint_t +hb_map_get (const hb_map_t *map, + hb_codepoint_t key) +{ + return map->get (key); +} + +/** + * hb_map_del: + * @map: A map + * @key: The key to delete + * + * Removes @key and its stored value from @map. + * + * Since: 1.7.7 + **/ +void +hb_map_del (hb_map_t *map, + hb_codepoint_t key) +{ + map->del (key); +} + +/** + * hb_map_has: + * @map: A map + * @key: The key to query + * + * Tests whether @key is an element of @map. + * + * Return value: %true if @key is found in @map, false otherwise + * + * Since: 1.7.7 + **/ +hb_bool_t +hb_map_has (const hb_map_t *map, + hb_codepoint_t key) +{ + return map->has (key); +} + + +/** + * hb_map_clear: + * @map: A map + * + * Clears out the contents of @map. + * + * Since: 1.7.7 + **/ +void +hb_map_clear (hb_map_t *map) +{ + return map->clear (); +} + +/** + * hb_map_is_empty: + * @map: A map + * + * Tests whether @map is empty (contains no elements). + * + * Return value: %true if @map is empty + * + * Since: 1.7.7 + **/ +hb_bool_t +hb_map_is_empty (const hb_map_t *map) +{ + return map->is_empty (); +} + +/** + * hb_map_get_population: + * @map: A map + * + * Returns the number of key-value pairs in the map. + * + * Return value: The population of @map + * + * Since: 1.7.7 + **/ +unsigned int +hb_map_get_population (const hb_map_t *map) +{ + return map->get_population (); +} |