tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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gr_features.cpp (3823B)

      1 /*  GRAPHITE2 LICENSING
      2 
      3    Copyright 2010, SIL International
      4    All rights reserved.
      5 
      6    This library is free software; you can redistribute it and/or modify
      7    it under the terms of the GNU Lesser General Public License as published
      8    by the Free Software Foundation; either version 2.1 of License, or
      9    (at your option) any later version.
     10 
     11    This program is distributed in the hope that it will be useful,
     12    but WITHOUT ANY WARRANTY; without even the implied warranty of
     13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14    Lesser General Public License for more details.
     15 
     16    You should also have received a copy of the GNU Lesser General Public
     17    License along with this library in the file named "LICENSE".
     18    If not, write to the Free Software Foundation, 51 Franklin Street,
     19    Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
     20    internet at http://www.fsf.org/licenses/lgpl.html.
     21 
     22 Alternatively, the contents of this file may be used under the terms of the
     23 Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
     24 License, as published by the Free Software Foundation, either version 2
     25 of the License or (at your option) any later version.
     26 */
     27 #include "graphite2/Font.h"
     28 #include "inc/Face.h"
     29 #include "inc/FeatureMap.h"
     30 #include "inc/FeatureVal.h"
     31 #include "inc/NameTable.h"
     32 
     33 using namespace graphite2;
     34 
     35 extern "C" {
     36 
     37 
     38 gr_uint16 gr_fref_feature_value(const gr_feature_ref* pfeatureref, const gr_feature_val* feats)    //returns 0 if either pointer is NULL
     39 {
     40    if (!pfeatureref || !feats) return 0;
     41 
     42    return pfeatureref->getFeatureVal(*feats);
     43 }
     44 
     45 
     46 int gr_fref_set_feature_value(const gr_feature_ref* pfeatureref, gr_uint16 val, gr_feature_val* pDest)
     47 {
     48    if (!pfeatureref || !pDest) return 0;
     49 
     50    return pfeatureref->applyValToFeature(val, *pDest);
     51 }
     52 
     53 
     54 gr_uint32 gr_fref_id(const gr_feature_ref* pfeatureref)    //returns 0 if pointer is NULL
     55 {
     56  if (!pfeatureref)
     57    return 0;
     58 
     59  return pfeatureref->getId();
     60 }
     61 
     62 
     63 gr_uint16 gr_fref_n_values(const gr_feature_ref* pfeatureref)
     64 {
     65    if(!pfeatureref)
     66        return 0;
     67    return pfeatureref->getNumSettings();
     68 }
     69 
     70 
     71 gr_int16 gr_fref_value(const gr_feature_ref* pfeatureref, gr_uint16 settingno)
     72 {
     73    if(!pfeatureref || (settingno >= pfeatureref->getNumSettings()))
     74    {
     75        return 0;
     76    }
     77    return pfeatureref->getSettingValue(settingno);
     78 }
     79 
     80 
     81 void* gr_fref_label(const gr_feature_ref* pfeatureref, gr_uint16 *langId, gr_encform utf, gr_uint32 *length)
     82 {
     83    if(!pfeatureref)
     84    {
     85        langId = 0;
     86        length = 0;
     87        return NULL;
     88    }
     89    uint16 label = pfeatureref->getNameId();
     90    NameTable * names = pfeatureref->getFace().nameTable();
     91    if (!names)
     92    {
     93        langId = 0;
     94        length = 0;
     95        return NULL;
     96    }
     97    return names->getName(*langId, label, utf, *length);
     98 }
     99 
    100 
    101 void* gr_fref_value_label(const gr_feature_ref*pfeatureref, gr_uint16 setting,
    102    gr_uint16 *langId, gr_encform utf, gr_uint32 *length)
    103 {
    104    if(!pfeatureref || (setting >= pfeatureref->getNumSettings()))
    105    {
    106        langId = 0;
    107        length = 0;
    108        return NULL;
    109    }
    110    uint16 label = pfeatureref->getSettingName(setting);
    111    NameTable * names = pfeatureref->getFace().nameTable();
    112    if (!names)
    113    {
    114        langId = 0;
    115        length = 0;
    116        return NULL;
    117    }
    118    return names->getName(*langId, label, utf, *length);
    119 }
    120 
    121 
    122 void gr_label_destroy(void * label)
    123 {
    124    free(label);
    125 }
    126 
    127 gr_feature_val* gr_featureval_clone(const gr_feature_val* pfeatures/*may be NULL*/)
    128 {                      //When finished with the Features, call features_destroy
    129    return static_cast<gr_feature_val*>(pfeatures ? new Features(*pfeatures) : new Features);
    130 }
    131 
    132 void gr_featureval_destroy(gr_feature_val *p)
    133 {
    134    delete static_cast<Features*>(p);
    135 }
    136 
    137 
    138 } // extern "C"