Glyphs

Initializer

init(_:)GSLayoutDirectionFromWritingDirectionGSLayoutDirectionFromWritingDirection

Resolves a writing direction to a layout direction.

init(_ writingDirection: GSWritingDirection)
GSLayoutDirection GSLayoutDirectionFromWritingDirection(GSWritingDirection writingDirection);
GSLayoutDirectionFromWritingDirection(writingDirection: GSWritingDirection) -> GSLayoutDirection

Parameters

writingDirection

The encoded writing direction.

Return Value

The corresponding resolved layout direction.

Discussion

The standalone bidirectional and contextual-kerning values resolve to GSLayoutDirection.leftTopRightTopToBottomGSLayoutDirectionLeftTopRightTopToBottomGSLayoutDirectionLeftTopRightTopToBottom. The vertical and line-progression bits take precedence over horizontal progression bits.