[Complex Text Layouts] Add third-party TextServer dependencies (ICU, HarfBuzz, Graphite).

thirdparty/graphite/src/gr_features.cpp

@@ -0,0 +1,138 @@
+/*  GRAPHITE2 LICENSING
+
+    Copyright 2010, SIL International
+    All rights reserved.
+
+    This library is free software; you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published
+    by the Free Software Foundation; either version 2.1 of License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should also have received a copy of the GNU Lesser General Public
+    License along with this library in the file named "LICENSE".
+    If not, write to the Free Software Foundation, 51 Franklin Street,
+    Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+    internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#include "graphite2/Font.h"
+#include "inc/Face.h"
+#include "inc/FeatureMap.h"
+#include "inc/FeatureVal.h"
+#include "inc/NameTable.h"
+
+using namespace graphite2;
+
+extern "C" {
+
+
+gr_uint16 gr_fref_feature_value(const gr_feature_ref* pfeatureref, const gr_feature_val* feats)    //returns 0 if either pointer is NULL
+{
+    if (!pfeatureref || !feats) return 0;
+
+    return pfeatureref->getFeatureVal(*feats);
+}
+
+
+int gr_fref_set_feature_value(const gr_feature_ref* pfeatureref, gr_uint16 val, gr_feature_val* pDest)
+{
+    if (!pfeatureref || !pDest) return 0;
+
+    return pfeatureref->applyValToFeature(val, *pDest);
+}
+
+
+gr_uint32 gr_fref_id(const gr_feature_ref* pfeatureref)    //returns 0 if pointer is NULL
+{
+  if (!pfeatureref)
+    return 0;
+
+  return pfeatureref->getId();
+}
+
+
+gr_uint16 gr_fref_n_values(const gr_feature_ref* pfeatureref)
+{
+    if(!pfeatureref)
+        return 0;
+    return pfeatureref->getNumSettings();
+}
+
+
+gr_int16 gr_fref_value(const gr_feature_ref* pfeatureref, gr_uint16 settingno)
+{
+    if(!pfeatureref || (settingno >= pfeatureref->getNumSettings()))
+    {
+        return 0;
+    }
+    return pfeatureref->getSettingValue(settingno);
+}
+
+
+void* gr_fref_label(const gr_feature_ref* pfeatureref, gr_uint16 *langId, gr_encform utf, gr_uint32 *length)
+{
+    if(!pfeatureref)
+    {
+        langId = 0;
+        length = 0;
+        return NULL;
+    }
+    uint16 label = pfeatureref->getNameId();
+    NameTable * names = pfeatureref->getFace().nameTable();
+    if (!names)
+    {
+        langId = 0;
+        length = 0;
+        return NULL;
+    }
+    return names->getName(*langId, label, utf, *length);
+}
+
+
+void* gr_fref_value_label(const gr_feature_ref*pfeatureref, gr_uint16 setting,
+    gr_uint16 *langId, gr_encform utf, gr_uint32 *length)
+{
+    if(!pfeatureref || (setting >= pfeatureref->getNumSettings()))
+    {
+        langId = 0;
+        length = 0;
+        return NULL;
+    }
+    uint16 label = pfeatureref->getSettingName(setting);
+    NameTable * names = pfeatureref->getFace().nameTable();
+    if (!names)
+    {
+        langId = 0;
+        length = 0;
+        return NULL;
+    }
+    return names->getName(*langId, label, utf, *length);
+}
+
+
+void gr_label_destroy(void * label)
+{
+    free(label);
+}
+
+gr_feature_val* gr_featureval_clone(const gr_feature_val* pfeatures/*may be NULL*/)
+{                      //When finished with the Features, call features_destroy
+    return static_cast<gr_feature_val*>(pfeatures ? new Features(*pfeatures) : new Features);
+}
+
+void gr_featureval_destroy(gr_feature_val *p)
+{
+    delete static_cast<Features*>(p);
+}
+
+
+} // extern "C"