getGlyphs(in:glyphs:characterIndexes:glyphInscriptions:elasticBits:)
Extracts the information needed to lay out the glyphs in the given glyph buffer from the given glyph range.
Declaration
func getGlyphs(in glyphsRange: NSRange, glyphs glyphBuffer: UnsafeMutablePointer<NSGlyph>!, characterIndexes charIndexBuffer: UnsafeMutablePointer<Int>!, glyphInscriptions inscribeBuffer: UnsafeMutablePointer<NSGlyphInscription>!, elasticBits elasticBuffer: UnsafeMutablePointer<ObjCBool>!) -> IntDiscussion
The charIndexBuffer contains the original characters for the glyphs. Note that a glyph at index 1 is not necessarily mapped to the character at index 1, since a glyph may be for a ligature or accent.
The inscribeBuffer contains the inscription attributes for each glyph, which are used to layout characters that are combined together. The possible values are described in the Constants section of the NSLayoutManager reference.
The elasticBuffer contains a Boolean value indicating whether a glyph is elastic for each glyph. An elastic glyph can be made longer at the end of a line or when needed for justification.
A subclass can override this method to interact with custom glyph storage.