Method GetGlyphToCharMap

src/os/windows/string_uniscribe.cpp:493–514

}

std::span<const int> UniscribeParagraphLayout::UniscribeVisualRun::GetGlyphToCharMap() const
{
	if (this->glyph_to_char.empty()) {
		this->glyph_to_char.resize(this->GetGlyphCount());

		/* The char to glyph array contains the first glyph index of the cluster that is associated
		 * with each character. It is possible for a cluster to be formed of several chars. */
		for (int c = 0; c < (int)this->char_to_glyph.size(); c++) {
			/* If multiple chars map to one glyph, only refer back to the first character. */
			if (this->glyph_to_char[this->char_to_glyph[c]] == 0) this->glyph_to_char[this->char_to_glyph[c]] = c + this->start_pos;
		}

		/* We only marked the first glyph of each cluster in the loop above. Fill the gaps. */
		int last_char = this->glyph_to_char[0];
		for (int g = 0; g < this->GetGlyphCount(); g++) {
			if (this->glyph_to_char[g] != 0) last_char = this->glyph_to_char[g];
			this->glyph_to_char[g] = last_char;
		}
	}

	return this->glyph_to_char;
}


/* virtual */ void UniscribeStringIterator::SetString(std::string_view s)