Extensions to CoreGraphics for Swift
CGPoint
addition, subtraction, scalar multiplication, negation and absolute valueCGSize
addition, subtraction, scalar multiplication, negation and absolute valueCGRect
union andCGPoint
containment
typealias CGLineDashPhase = CGFloat
typealias CGLineDashPatternLength = CGFloat
typealias CGLineDashPattern = [CGLineDashPatternLength]
struct CGLineDash {
let phase: CGLineDashPhase
let pattern: CGLineDashPattern
}