/*
* 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.hh"
#ifndef HB_NO_NAME
#include "hb-ot-name-table.hh"
#include "hb-utf.hh"
/**
* SECTION : hb - ot - name
* @ title : hb - ot - name
* @ short_description : OpenType font name information
* @ include : hb - ot . h
*
* Functions for fetching name strings from OpenType fonts .
**/
/**
* hb_ot_name_list_names :
* @ face : font face .
* @ num_entries : ( out ) ( optional ) : number of returned entries .
*
* Enumerates all available name IDs and language combinations . Returned
* array is owned by the @ face and should not be modified . It can be
* used as long as @ face is alive .
*
* Returns : ( transfer none ) ( array length = num_entries ) : Array of available name entries .
* Since : 2 . 1 . 0
**/
const hb_ot_name_entry_t *
hb_ot_name_list_names (hb_face_t *face,
unsigned int *num_entries /* OUT */)
{
const OT::name_accelerator_t &name = *face->table.name;
if (num_entries) *num_entries = name.names.length;
return (const hb_ot_name_entry_t *) name.names;
}
template <typename utf_t>
static inline unsigned int
hb_ot_name_get_utf (hb_face_t *face,
hb_ot_name_id_t name_id,
hb_language_t language,
unsigned int *text_size /* IN/OUT */,
typename utf_t::codepoint_t *text /* OUT */)
{
const OT::name_accelerator_t &name = *face->table.name;
if (!language)
language = hb_language_from_string ("en" , 2 );
unsigned int width;
int idx = name.get_index (name_id, language, &width);
if (idx != -1 )
{
hb_bytes_t bytes = name.get_name (idx);
if (width == 2 ) /* UTF16-BE */
return OT::hb_ot_name_convert_utf<hb_utf16_be_t, utf_t> (bytes, text_size, text);
if (width == 1 ) /* ASCII */
return OT::hb_ot_name_convert_utf<hb_ascii_t, utf_t> (bytes, text_size, text);
}
if (text_size)
{
if (*text_size)
*text = 0 ;
*text_size = 0 ;
}
return 0 ;
}
/**
* hb_ot_name_get_utf8 :
* @ face : font face .
* @ name_id : OpenType name identifier to fetch .
* @ language : language to fetch the name for .
* @ text_size : ( inout ) ( optional ) : input size of @ text buffer , and output size of
* text written to buffer .
* @ text : ( out caller - allocates ) ( array length = text_size ) : buffer to write fetched name into .
*
* Fetches a font name from the OpenType ' name ' table .
* If @ language is # HB_LANGUAGE_INVALID , English ( " en " ) is assumed .
* Returns string in UTF - 8 encoding . A NUL terminator is always written
* for convenience , and isn ' t included in the output @ text_size .
*
* Returns : full length of the requested string , or 0 if not found .
* Since : 2 . 1 . 0
**/
unsigned int
hb_ot_name_get_utf8 (hb_face_t *face,
hb_ot_name_id_t name_id,
hb_language_t language,
unsigned int *text_size /* IN/OUT */,
char *text /* OUT */)
{
return hb_ot_name_get_utf<hb_utf8_t> (face, name_id, language, text_size,
(hb_utf8_t::codepoint_t *) text);
}
/**
* hb_ot_name_get_utf16 :
* @ face : font face .
* @ name_id : OpenType name identifier to fetch .
* @ language : language to fetch the name for .
* @ text_size : ( inout ) ( optional ) : input size of @ text buffer , and output size of
* text written to buffer .
* @ text : ( out caller - allocates ) ( array length = text_size ) : buffer to write fetched name into .
*
* Fetches a font name from the OpenType ' name ' table .
* If @ language is # HB_LANGUAGE_INVALID , English ( " en " ) is assumed .
* Returns string in UTF - 16 encoding . A NUL terminator is always written
* for convenience , and isn ' t included in the output @ text_size .
*
* Returns : full length of the requested string , or 0 if not found .
* Since : 2 . 1 . 0
**/
unsigned int
hb_ot_name_get_utf16 (hb_face_t *face,
hb_ot_name_id_t name_id,
hb_language_t language,
unsigned int *text_size /* IN/OUT */,
uint16_t *text /* OUT */)
{
return hb_ot_name_get_utf<hb_utf16_t> (face, name_id, language, text_size, text);
}
/**
* hb_ot_name_get_utf32 :
* @ face : font face .
* @ name_id : OpenType name identifier to fetch .
* @ language : language to fetch the name for .
* @ text_size : ( inout ) ( optional ) : input size of @ text buffer , and output size of
* text written to buffer .
* @ text : ( out caller - allocates ) ( array length = text_size ) : buffer to write fetched name into .
*
* Fetches a font name from the OpenType ' name ' table .
* If @ language is # HB_LANGUAGE_INVALID , English ( " en " ) is assumed .
* Returns string in UTF - 32 encoding . A NUL terminator is always written
* for convenience , and isn ' t included in the output @ text_size .
*
* Returns : full length of the requested string , or 0 if not found .
* Since : 2 . 1 . 0
**/
unsigned int
hb_ot_name_get_utf32 (hb_face_t *face,
hb_ot_name_id_t name_id,
hb_language_t language,
unsigned int *text_size /* IN/OUT */,
uint32_t *text /* OUT */)
{
return hb_ot_name_get_utf<hb_utf32_t> (face, name_id, language, text_size, text);
}
#endif
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