Bezzy
Bezzy is a collection of simple helpers for building UIBezierPaths.
Swift port of my old UIBezierPath+DSL Cocoapod.
✓ Movements (with support for positioning relative to currentPoint)
let path = UIBezierPath { path in
path.add(.move, x: 0.5, y: 0.5)
path.add(.line, 0.5, .up)
path.add(.line, 0.5, .right)
path.add(.line, 0.5, .down)
path.add(.line, 1.0, .left)
path.add(.line, 0.5, .down)
path.add(.line, 0.5, .right)
path.close()
}✓ Shapes
let path = UIBezierPath { path in
path.add(.rect, at: CGRect(x: 0.5, y: 0.5, width: 10.0, height: 20.0))
path.add(.oval, center: CGPoint(x: 0.5, y: 0.5), radius: 20.0)
path.add(.roundedRect(cornerRadius: 4.0), center: CGPoint(x: 0.5, y: 0.5), size: CGSize(width: 40.0, height: 20.0))
}✓ Paths
let path = UIBezierPath { path in
path.add(.closed, points: [
CGPoint(x: 0.0, y: 0.0),
CGPoint(x: 0.0, y: 1.0),
CGPoint(x: 1.0, y: 1.0),
CGPoint(x: 1.0, y: 0.0)
])
}✓ Transformations
let path = UIBezierPath { path in
path.add(.oval, x: 0.0, y: 0.0, width: 1.0, height: 1.0)
path.scale(0.5, .horizontal)
path.rotate(45 * .pi / 180, .anticlockwise)
path.translate(50.0, .right)
}Full API:
UIBezierPath
// Constructors
init(_ closure: (UIBezierPath) -> Void)
static func make(_ path: UIBezierPath, _ closure: (UIBezierPath) -> Void) -> UIBezierPath
// Movements
func add(_ movement: Movement, to point: CGPoint)
func add(_ movement: Movement, x: CGFloat, y: CGFloat)
func add(_ movement: Movement, dx: CGFloat, dy: CGFloat)
func add(_ movement: Movement, r: CGFloat, θ: CGFloat)
func add(_ movement: Movement, _ r: CGFloat, _ direction: Direction)
// Shapes
func add(_ shape: Shape, at rect: CGRect)
func add(_ shape: Shape, origin: CGPoint, size: CGSize)
func add(_ shape: Shape, x: CGFloat, y: CGFloat, width: CGFloat, height: CGFloat)
func add(_ shape: Shape, center: CGPoint, radius: CGFloat)
func add(_ shape: Shape, center: CGPoint, size: CGSize)
// Paths
func add(_ path: Path, points: [CGPoint])
// Transforms
func translate(tx: CGFloat, ty: CGFloat)
func translate(r: CGFloat, θ: CGFloat)
func translate(_ r: CGFloat, _ direction: Direction)
func scale(sx: CGFloat, sy: CGFloat)
func scale(_ ratio: CGFloat, _ axis: Axis)
func rotate(_ angle: CGFloat, _ motion: Motion = .clockwise)Wishlist/API ideas
-
Better convenience functions for arcs
- Should be able to arc to a point
- Should be able to arc by an angle from the current point, given a radius
-
Location-aware transforms
- Scale
- Scale horizontally around x position
- Scale horizontally around center
- Scale vertically around y position
- Scale vertically around center
- Flip horizontally around x position
- Flip horizontally around center
- Flip vertically around y position
- Flip vertically around center
- Translate
- Translate center to point
- Translate origin to point
- Rotation
- Rotate around point
- Rotate around x and y
- Rotate around center
- Half turn around center
- Clockwise quarter turn around center
- Anticlockwise quarter turn around center
- Combination
- Stretch to fit size, with origin point
- Stretch to fit size, with center point
- Stretch to fit rect
- Stretch to fit rect, with insets
- Aspect fit and aspect fill rect (look at UIViewContentMode perhaps)
- Scale