The Tor Browser: gfx/graphite2/src/gr_features.cpp@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /*  GRAPHITE2 LICENSING

     3     Copyright 2010, SIL International

     4     All rights reserved.

     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.

    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.

    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.

    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"

    33 using namespace graphite2;

    35 extern "C" {

    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;

    42     return pfeatureref->getFeatureVal(*feats);

    43 }

    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;

    50     return pfeatureref->applyValToFeature(val, *pDest);

    51 }

    54 gr_uint32 gr_fref_id(const gr_feature_ref* pfeatureref)    //returns 0 if pointer is NULL

    55 {

    56   if (!pfeatureref)

    57     return 0;

    59   return pfeatureref->getId();

    60 }

    63 gr_uint16 gr_fref_n_values(const gr_feature_ref* pfeatureref)

    64 {

    65     if(!pfeatureref)

    66         return 0;

    67     return pfeatureref->getNumSettings();

    68 }

    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 }

    81 void* gr_fref_label(const gr_feature_ref* pfeatureref, gr_uint16 *langId, gr_encform utf, gr_uint32 *length)

    82 {

    83     if(!pfeatureref || !pfeatureref->getFace())

    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 }

   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()) || !pfeatureref->getFace())

   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 }

   122 void gr_label_destroy(void * label)

   123 {

   124     free(label);

   125 }

   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 }

   132 void gr_featureval_destroy(gr_feature_val *p)

   133 {

   134     delete p;

   135 }

   138 } // extern "C"

The Tor Browser / file revision