Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/harfbuzz/src/OT/Layout/GPOS/PosLookupSubTable.hh @ 21:2f43e400f144

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Provide an "all" target to build both the sdist and the wheel
author Franz Glasner <fzglas.hg@dom66.de>
date Fri, 19 Sep 2025 10:28:53 +0200
parents b50eed0cc0ef
children
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1 #ifndef OT_LAYOUT_GPOS_POSLOOKUPSUBTABLE_HH
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2 #define OT_LAYOUT_GPOS_POSLOOKUPSUBTABLE_HH
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3
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4 #include "SinglePos.hh"
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5 #include "PairPos.hh"
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6 #include "CursivePos.hh"
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7 #include "MarkBasePos.hh"
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8 #include "MarkLigPos.hh"
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9 #include "MarkMarkPos.hh"
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10 #include "ContextPos.hh"
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11 #include "ChainContextPos.hh"
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12 #include "ExtensionPos.hh"
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14 namespace OT {
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15 namespace Layout {
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16 namespace GPOS_impl {
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18 struct PosLookupSubTable
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19 {
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20 friend struct ::OT::Lookup;
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21 friend struct PosLookup;
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23 enum Type {
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24 Single = 1,
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25 Pair = 2,
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26 Cursive = 3,
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27 MarkBase = 4,
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28 MarkLig = 5,
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29 MarkMark = 6,
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30 Context = 7,
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31 ChainContext = 8,
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32 Extension = 9
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33 };
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35 template <typename context_t, typename ...Ts>
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36 typename context_t::return_t dispatch (context_t *c, unsigned int lookup_type, Ts&&... ds) const
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37 {
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38 TRACE_DISPATCH (this, lookup_type);
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39 switch (lookup_type) {
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40 case Single: return_trace (u.single.dispatch (c, std::forward<Ts> (ds)...));
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41 case Pair: return_trace (u.pair.dispatch (c, std::forward<Ts> (ds)...));
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42 case Cursive: return_trace (u.cursive.dispatch (c, std::forward<Ts> (ds)...));
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43 case MarkBase: return_trace (u.markBase.dispatch (c, std::forward<Ts> (ds)...));
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44 case MarkLig: return_trace (u.markLig.dispatch (c, std::forward<Ts> (ds)...));
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45 case MarkMark: return_trace (u.markMark.dispatch (c, std::forward<Ts> (ds)...));
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46 case Context: return_trace (u.context.dispatch (c, std::forward<Ts> (ds)...));
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47 case ChainContext: return_trace (u.chainContext.dispatch (c, std::forward<Ts> (ds)...));
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48 case Extension: return_trace (u.extension.dispatch (c, std::forward<Ts> (ds)...));
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49 default: return_trace (c->default_return_value ());
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50 }
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51 }
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52
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53 bool intersects (const hb_set_t *glyphs, unsigned int lookup_type) const
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54 {
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55 hb_intersects_context_t c (glyphs);
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56 return dispatch (&c, lookup_type);
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57 }
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58
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59 protected:
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60 union {
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61 SinglePos single;
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62 PairPos pair;
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63 CursivePos cursive;
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64 MarkBasePos markBase;
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65 MarkLigPos markLig;
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66 MarkMarkPos markMark;
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67 ContextPos context;
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68 ChainContextPos chainContext;
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69 ExtensionPos extension;
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70 } u;
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71 public:
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72 DEFINE_SIZE_MIN (0);
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73 };
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75 }
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76 }
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77 }
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79 #endif /* HB_OT_LAYOUT_GPOS_POSLOOKUPSUBTABLE_HH */