vcl/inc/graphite_features.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 // Description:
  21 // Parse a string of features specified as ; separated pairs.
  22 // e.g.
  23 // 1001=1&2002=2&fav1=0
  24 #include <sal/types.h>
  25 #include <rtl/ustring.hxx>
  26 #include <graphite2/Font.h>
  27
  28 namespace grutils
  29 {
  30     union FeatId
  31     {
  32         gr_uint32 num;
  33         unsigned char label[5];
  34     };
  35
  36     class GrFeatureParser
  37     {
  38     public:
  39         enum { MAX_FEATURES = 64 };
  40         static const char FEAT_PREFIX;
  41         static const char FEAT_SEPARATOR;
  42         static const char FEAT_ID_VALUE_SEPARATOR;
  43         GrFeatureParser(const gr_face * face, const OString features, const OString lang);
  44         GrFeatureParser(const gr_face * face, const OString lang);
  45         ~GrFeatureParser();
  46         //size_t getFontFeatures(gr::FeatureSetting settings[MAX_FEATURES]) const;
  47         bool parseErrors() { return mbErrors; };
  48         //static bool isValid(gr::Font & font, gr::FeatureSetting & setting);
  49         gr_uint32 getLanguage() const { return maLang.num; };
  50         bool hasLanguage() const { return (maLang.label[0] != '\0'); }
  51         sal_Int32 hashCode() const { return mnHash; }
  52         size_t numFeatures() const { return mnNumSettings; }
  53         gr_feature_val * values() const { return mpSettings; };
  54     private:
  55         GrFeatureParser(const GrFeatureParser & copy);
  56         void setLang(const gr_face * face, const OString & lang);
  57         bool isCharId(const OString & id, size_t offset, size_t length);
  58         gr_uint32 getCharId(const OString & id, size_t offset, size_t length);
  59         short getIntValue(const OString & id, size_t offset, size_t length);
  60         size_t mnNumSettings;
  61         FeatId maLang;
  62         bool mbErrors;
  63         sal_uInt32 mnHash;
  64         gr_feature_val * mpSettings;
  65     };
  66
  67 }
  68
  69 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */