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Diffstat (limited to 'Build/source/texk/lcdf-typetools/include/efont/pairop.hh')
-rw-r--r-- | Build/source/texk/lcdf-typetools/include/efont/pairop.hh | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/Build/source/texk/lcdf-typetools/include/efont/pairop.hh b/Build/source/texk/lcdf-typetools/include/efont/pairop.hh new file mode 100644 index 00000000000..c445f16624a --- /dev/null +++ b/Build/source/texk/lcdf-typetools/include/efont/pairop.hh @@ -0,0 +1,113 @@ +// -*- related-file-name: "../../libefont/pairop.cc" -*- +#ifndef PAIROP_HH +#define PAIROP_HH +#include <efont/encoding.hh> /* get GlyphIndex */ +namespace Efont { + +enum PairOpDefs { + + opNoop = -1, + opLigature = -2, + + opLigSimple = 0, + opLigSaveLeft = 1, + opLigSaveRight = 2, + opLigPast1 = 4, + opLigPast2 = 8, + + opAllblock = 0 + +}; + + +typedef int PairOpIndex; + + +class PairOp { public: + + PairOp() { } + inline PairOp(GlyphIndex l, GlyphIndex r, int v, PairOpIndex nl); + inline PairOp(GlyphIndex l, GlyphIndex r, GlyphIndex x, int kind, PairOpIndex nl); + + void noopify() { _val = opNoop; } + void set_value(int val) { _val = val; } + + inline void set_next(PairOpIndex); + + bool is_lig() const { return _val <= opLigature; } + bool is_kern() const { return _val >= 0; } + bool is_noop() const { return _val == opNoop; } + int lig_kind() const { assert(is_lig()); return -_val+opLigature; } + + GlyphIndex left() const { return _left; } + GlyphIndex right() const { return _right; } + GlyphIndex result() const { assert(is_lig()); return _result; } + int value() const { return _val; } + PairOpIndex next_left() const { return _next_left; } + + private: + + GlyphIndex _left; + GlyphIndex _right; + GlyphIndex _result; + int _val; + + PairOpIndex _next_left; + +}; + + +class PairProgram { public: + + PairProgram() : _reversed(false) { } + PairProgram(const PairProgram &); + + void reserve_glyphs(int); + + PairOpIndex find_left(GlyphIndex gi) const { return _left_map[gi]; } + PairOpIndex find(GlyphIndex leftgi, GlyphIndex rightgi) const; + + int op_count() const { return _op.size(); } + const PairOp &op(PairOpIndex i) const { return _op[i]; } + + // Return true if it's a duplicate. + bool add_kern(GlyphIndex, GlyphIndex, int); + bool add_lig(GlyphIndex, GlyphIndex, GlyphIndex, int kind = opLigSimple); + + void set_reversed(bool r) { _reversed = r; } + void unreverse(); + void optimize(); + + void print() const; + + private: + + bool _reversed; + Vector<PairOpIndex> _left_map; + Vector<PairOp> _op; + + inline const char *print_name(GlyphIndex) const; + + PairProgram &operator=(const PairProgram &) { assert(0); return *this; } + +}; + + +inline PairOp::PairOp(GlyphIndex l, GlyphIndex r, int v, PairOpIndex nl) + : _left(l), _right(r), _result(), _val(v), _next_left(nl) +{ +} + +inline PairOp::PairOp(GlyphIndex l, GlyphIndex r, GlyphIndex x, int kind, + PairOpIndex nl) + : _left(l), _right(r), _result(x), _val(opLigature - kind), _next_left(nl) +{ +} + +inline void PairOp::set_next(PairOpIndex nl) +{ + _next_left = nl; +} + +} +#endif |