xref: /aoo41x/main/vcl/inc/graphite_features.hxx (revision cdf0e10c)
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27*cdf0e10cSrcweir 
28*cdf0e10cSrcweir // Description:
29*cdf0e10cSrcweir // Parse a string of features specified as ; separated pairs.
30*cdf0e10cSrcweir // e.g.
31*cdf0e10cSrcweir // 1001=1&2002=2&fav1=0
32*cdf0e10cSrcweir #include <preextstl.h>
33*cdf0e10cSrcweir #include <graphite/GrClient.h>
34*cdf0e10cSrcweir #include <graphite/Font.h>
35*cdf0e10cSrcweir #include <graphite/GrFeature.h>
36*cdf0e10cSrcweir #include <postextstl.h>
37*cdf0e10cSrcweir 
38*cdf0e10cSrcweir namespace grutils
39*cdf0e10cSrcweir {
40*cdf0e10cSrcweir 
41*cdf0e10cSrcweir     class GrFeatureParser
42*cdf0e10cSrcweir     {
43*cdf0e10cSrcweir     public:
44*cdf0e10cSrcweir         enum { MAX_FEATURES = 64 };
45*cdf0e10cSrcweir         static const char FEAT_PREFIX;
46*cdf0e10cSrcweir         static const char FEAT_SEPARATOR;
47*cdf0e10cSrcweir         static const char FEAT_ID_VALUE_SEPARATOR;
48*cdf0e10cSrcweir         static const std::string ISO_LANG;
49*cdf0e10cSrcweir         GrFeatureParser(gr::Font & font, const std::string features, const std::string lang);
50*cdf0e10cSrcweir         GrFeatureParser(gr::Font & font, const std::string lang);
51*cdf0e10cSrcweir         GrFeatureParser(const GrFeatureParser & copy);
52*cdf0e10cSrcweir         ~GrFeatureParser();
53*cdf0e10cSrcweir         size_t getFontFeatures(gr::FeatureSetting settings[MAX_FEATURES]) const;
54*cdf0e10cSrcweir         bool parseErrors() { return mbErrors; };
55*cdf0e10cSrcweir         static bool isValid(gr::Font & font, gr::FeatureSetting & setting);
56*cdf0e10cSrcweir         gr::isocode getLanguage() const { return maLang; };
57*cdf0e10cSrcweir         bool hasLanguage() const { return (maLang.rgch[0] != '\0'); }
58*cdf0e10cSrcweir         sal_Int32 hashCode() const;
59*cdf0e10cSrcweir     private:
60*cdf0e10cSrcweir         void setLang(gr::Font & font, const std::string & lang);
61*cdf0e10cSrcweir         bool isCharId(const std::string & id, size_t offset, size_t length);
62*cdf0e10cSrcweir         int getCharId(const std::string & id, size_t offset, size_t length);
63*cdf0e10cSrcweir         int getIntValue(const std::string & id, size_t offset, size_t length);
64*cdf0e10cSrcweir         size_t mnNumSettings;
65*cdf0e10cSrcweir         gr::isocode maLang;
66*cdf0e10cSrcweir         bool mbErrors;
67*cdf0e10cSrcweir         gr::FeatureSetting maSettings[64];
68*cdf0e10cSrcweir     };
69*cdf0e10cSrcweir 
70*cdf0e10cSrcweir     union FeatId
71*cdf0e10cSrcweir     {
72*cdf0e10cSrcweir         gr::featid num;
73*cdf0e10cSrcweir         unsigned char label[5];
74*cdf0e10cSrcweir     };
75*cdf0e10cSrcweir }
76