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-rw-r--r--Build/source/libs/harfbuzz/harfbuzz-src/src/OT/Layout/GPOS/PosLookup.hh79
1 files changed, 79 insertions, 0 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/OT/Layout/GPOS/PosLookup.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/OT/Layout/GPOS/PosLookup.hh
new file mode 100644
index 00000000000..c4e57bb5430
--- /dev/null
+++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/OT/Layout/GPOS/PosLookup.hh
@@ -0,0 +1,79 @@
+#ifndef OT_LAYOUT_GPOS_POSLOOKUP_HH
+#define OT_LAYOUT_GPOS_POSLOOKUP_HH
+
+#include "PosLookupSubTable.hh"
+#include "../../../hb-ot-layout-common.hh"
+
+namespace OT {
+namespace Layout {
+namespace GPOS_impl {
+
+struct PosLookup : Lookup
+{
+ using SubTable = PosLookupSubTable;
+
+ const SubTable& get_subtable (unsigned int i) const
+ { return Lookup::get_subtable<SubTable> (i); }
+
+ bool is_reverse () const
+ {
+ return false;
+ }
+
+ bool apply (hb_ot_apply_context_t *c) const
+ {
+ TRACE_APPLY (this);
+ return_trace (dispatch (c));
+ }
+
+ bool intersects (const hb_set_t *glyphs) const
+ {
+ hb_intersects_context_t c (glyphs);
+ return dispatch (&c);
+ }
+
+ hb_collect_glyphs_context_t::return_t collect_glyphs (hb_collect_glyphs_context_t *c) const
+ { return dispatch (c); }
+
+ hb_closure_lookups_context_t::return_t closure_lookups (hb_closure_lookups_context_t *c, unsigned this_index) const
+ {
+ if (c->is_lookup_visited (this_index))
+ return hb_closure_lookups_context_t::default_return_value ();
+
+ c->set_lookup_visited (this_index);
+ if (!intersects (c->glyphs))
+ {
+ c->set_lookup_inactive (this_index);
+ return hb_closure_lookups_context_t::default_return_value ();
+ }
+
+ hb_closure_lookups_context_t::return_t ret = dispatch (c);
+ return ret;
+ }
+
+ template <typename set_t>
+ void collect_coverage (set_t *glyphs) const
+ {
+ hb_collect_coverage_context_t<set_t> c (glyphs);
+ dispatch (&c);
+ }
+
+ template <typename context_t>
+ static typename context_t::return_t dispatch_recurse_func (context_t *c, unsigned int lookup_index);
+
+ template <typename context_t, typename ...Ts>
+ typename context_t::return_t dispatch (context_t *c, Ts&&... ds) const
+ { return Lookup::dispatch<SubTable> (c, std::forward<Ts> (ds)...); }
+
+ bool subset (hb_subset_context_t *c) const
+ { return Lookup::subset<SubTable> (c); }
+
+ bool sanitize (hb_sanitize_context_t *c) const
+ { return Lookup::sanitize<SubTable> (c); }
+};
+
+}
+}
+}
+
+#endif /* OT_LAYOUT_GPOS_POSLOOKUP_HH */