vcl/inc/graphite_features.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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   9  * This file incorporates work covered by the following license notice:
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  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
  25 #ifndef INCLUDED_VCL_INC_GRAPHITE_FEATURES_HXX
  26 #define INCLUDED_VCL_INC_GRAPHITE_FEATURES_HXX
  27
  28 #include <sal/types.h>
  29 #include <rtl/ustring.hxx>
  30 #include <graphite_static.hxx>
  31 #include <graphite2/Font.h>
  32
  33 namespace grutils
  34 {
  35     union FeatId
  36     {
  37         gr_uint32 num;
  38         unsigned char label[5];
  39     };
  40
  41     class GrFeatureParser
  42     {
  43     public:
  44         enum { MAX_FEATURES = 64 };
  45         static const char FEAT_PREFIX;
  46         static const char FEAT_SEPARATOR;
  47         static const char FEAT_ID_VALUE_SEPARATOR;
  48         GrFeatureParser(const gr_face * face, const OString& features, const OString& lang);
  49         GrFeatureParser(const gr_face * face, const OString& lang);
  50         ~GrFeatureParser();
  51         //size_t getFontFeatures(gr::FeatureSetting settings[MAX_FEATURES]) const;
  52         bool parseErrors() { return mbErrors; };
  53         //static bool isValid(gr::Font & font, gr::FeatureSetting & setting);
  54         gr_uint32 getLanguage() const { return maLang.num; };
  55         bool hasLanguage() const { return (maLang.label[0] != '\0'); }
  56         sal_Int32 hashCode() const { return mnHash; }
  57         size_t numFeatures() const { return mnNumSettings; }
  58         gr_feature_val * values() const { return mpSettings; };
  59     private:
  60         GrFeatureParser(const GrFeatureParser & copy) SAL_DELETED_FUNCTION;
  61         void setLang(const gr_face * face, const OString & lang);
  62         static bool isCharId(const OString & id, size_t offset, size_t length);
  63         static gr_uint32 getCharId(const OString & id, size_t offset, size_t length);
  64         short getIntValue(const OString & id, size_t offset, size_t length);
  65         size_t mnNumSettings;
  66         FeatId maLang;
  67         bool mbErrors;
  68         sal_uInt32 mnHash;
  69         gr_feature_val * mpSettings;
  70     };
  71
  72 }
  73
  74 #endif // INCLUDED_VCL_INC_GRAPHITE_FEATURES_HXX
  75
  76 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */