69 lines
1.6 KiB
C++
69 lines
1.6 KiB
C++
#ifndef OT_GLYF_COMPOSITE_ITER_HH
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#define OT_GLYF_COMPOSITE_ITER_HH
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#include "../../hb.hh"
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namespace OT {
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namespace glyf_impl {
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template <typename CompositeGlyphRecord>
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struct composite_iter_tmpl : hb_iter_with_fallback_t<composite_iter_tmpl<CompositeGlyphRecord>,
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const CompositeGlyphRecord &>
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{
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typedef const CompositeGlyphRecord *__item_t__;
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composite_iter_tmpl (hb_bytes_t glyph_, __item_t__ current_) :
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glyph (glyph_), current (nullptr), current_size (0)
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{
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set_current (current_);
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}
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composite_iter_tmpl () : glyph (hb_bytes_t ()), current (nullptr), current_size (0) {}
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const CompositeGlyphRecord & __item__ () const { return *current; }
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bool __more__ () const { return current; }
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void __next__ ()
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{
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if (!current->has_more ()) { current = nullptr; return; }
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set_current (&StructAtOffset<CompositeGlyphRecord> (current, current_size));
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}
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composite_iter_tmpl __end__ () const { return composite_iter_tmpl (); }
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bool operator != (const composite_iter_tmpl& o) const
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{ return current != o.current; }
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void set_current (__item_t__ current_)
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{
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if (!glyph.check_range (current_, CompositeGlyphRecord::min_size))
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{
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current = nullptr;
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current_size = 0;
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return;
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}
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unsigned size = current_->get_size ();
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if (!glyph.check_range (current_, size))
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{
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current = nullptr;
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current_size = 0;
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return;
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}
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current = current_;
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current_size = size;
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}
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private:
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hb_bytes_t glyph;
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__item_t__ current;
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unsigned current_size;
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};
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} /* namespace glyf_impl */
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} /* namespace OT */
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#endif /* OT_GLYF_COMPOSITE_ITER_HH */
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