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// -*- related-file-name: "../../libefont/otfos2.cc" -*-
#ifndef EFONT_OTFOS2_HH
#define EFONT_OTFOS2_HH
#include <efont/otf.hh>
#include <efont/otfdata.hh>
#include <lcdf/error.hh>
namespace Efont { namespace OpenType {
class Os2 { public:
Os2(const Data &, ErrorHandler * = 0);
// default destructor
bool ok() const { return _error >= 0; }
int error() const { return _error; }
enum Offsets { O_AVGCHARWIDTH = 2, O_SUBSCRIPTXSIZE = 10,
O_SUBSCRIPTYSIZE = 12, O_SUBSCRIPTXOFFSET = 14,
O_SUBSCRIPTYOFFSET = 16, O_SUPERSCRIPTXSIZE = 18,
O_SUPERSCRIPTYSIZE = 20, O_SUPERSCRIPTXOFFSET = 22,
O_SUPERSCRIPTYOFFSET = 24, O_STRIKEOUTSIZE = 26,
O_STRIKEOUTPOSITION = 28, O_VENDORID = 58,
O_TYPOASCENDER = 68, O_TYPODESCENDER = 70,
O_TYPOLINEGAP = 72, O_XHEIGHT = 86, O_CAPHEIGHT = 88 };
enum { HEADER_SIZE = 2 };
inline int16_t typo_ascender() const throw (Bounds);
inline int16_t typo_descender() const throw (Bounds);
inline int16_t typo_line_gap() const throw (Bounds);
inline int16_t x_height() const throw (Bounds);
inline int16_t cap_height() const throw (Bounds);
inline String vendor_id() const throw ();
private:
Data _data;
int _error;
int parse_header(ErrorHandler *);
};
inline int16_t Os2::typo_ascender() const throw (Bounds)
{
return _data.s16(O_TYPOASCENDER);
}
inline int16_t Os2::typo_descender() const throw (Bounds)
{
return _data.s16(O_TYPODESCENDER);
}
inline int16_t Os2::typo_line_gap() const throw (Bounds)
{
return _data.s16(O_TYPOLINEGAP);
}
inline int16_t Os2::x_height() const throw (Bounds)
{
return _data.s16(O_XHEIGHT);
}
inline int16_t Os2::cap_height() const throw (Bounds)
{
return _data.s16(O_CAPHEIGHT);
}
inline String Os2::vendor_id() const throw ()
{
return _data.substring(O_VENDORID, 4);
}
}}
#endif
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