drawBackground(withFrame:in:characterRange:layoutManager:)
Called by the layout manager to draw any colors and other decorations before the text is drawn.
Declaration
func drawBackground(withFrame frameRect: NSRect, in controlView: NSView, characterRange charRange: NSRange, layoutManager: NSLayoutManager)Parameters
- frameRect:
The bounds rectangle in view coordinates.
- controlView:
The view in which drawing occurs.
- charRange:
The range of the characters in the Nstextstorage object whose glyphs are to be drawn.
- layoutManager:
The layout manager controlling the typesetting.