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- import Foundation
- import CoreGraphics
- #if canImport(AppKit) && !targetEnvironment(macCatalyst)
- import AppKit
- #endif
- public enum ImageProcessItem {
-
-
-
- case image(KFCrossPlatformImage)
-
-
-
- case data(Data)
- }
- public protocol ImageProcessor {
-
-
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-
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-
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- var identifier: String { get }
-
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-
-
- func process(item: ImageProcessItem, options: KingfisherParsedOptionsInfo) -> KFCrossPlatformImage?
- }
- extension ImageProcessor {
-
-
-
-
-
-
-
- public func append(another: ImageProcessor) -> ImageProcessor {
- let newIdentifier = identifier.appending("|>\(another.identifier)")
- return GeneralProcessor(identifier: newIdentifier) {
- item, options in
- if let image = self.process(item: item, options: options) {
- return another.process(item: .image(image), options: options)
- } else {
- return nil
- }
- }
- }
- }
- func ==(left: ImageProcessor, right: ImageProcessor) -> Bool {
- return left.identifier == right.identifier
- }
- func !=(left: ImageProcessor, right: ImageProcessor) -> Bool {
- return !(left == right)
- }
- typealias ProcessorImp = ((ImageProcessItem, KingfisherParsedOptionsInfo) -> KFCrossPlatformImage?)
- struct GeneralProcessor: ImageProcessor {
- let identifier: String
- let p: ProcessorImp
- func process(item: ImageProcessItem, options: KingfisherParsedOptionsInfo) -> KFCrossPlatformImage? {
- return p(item, options)
- }
- }
- public struct DefaultImageProcessor: ImageProcessor {
-
-
- public static let `default` = DefaultImageProcessor()
-
-
-
- public let identifier = ""
-
-
-
- public init() {}
-
-
-
-
-
-
-
-
-
- public func process(item: ImageProcessItem, options: KingfisherParsedOptionsInfo) -> KFCrossPlatformImage? {
- switch item {
- case .image(let image):
- return image.kf.scaled(to: options.scaleFactor)
- case .data(let data):
- return KingfisherWrapper.image(data: data, options: options.imageCreatingOptions)
- }
- }
- }
- public struct RectCorner: OptionSet {
-
-
- public let rawValue: Int
-
-
- public static let topLeft = RectCorner(rawValue: 1 << 0)
-
-
- public static let topRight = RectCorner(rawValue: 1 << 1)
-
-
- public static let bottomLeft = RectCorner(rawValue: 1 << 2)
-
-
- public static let bottomRight = RectCorner(rawValue: 1 << 3)
-
-
- public static let all: RectCorner = [.topLeft, .topRight, .bottomLeft, .bottomRight]
-
-
-
-
- public init(rawValue: Int) {
- self.rawValue = rawValue
- }
-
- var cornerIdentifier: String {
- if self == .all {
- return ""
- }
- return "_corner(\(rawValue))"
- }
- }
- #if !os(macOS)
- public struct BlendImageProcessor: ImageProcessor {
-
-
- public let identifier: String
-
- public let blendMode: CGBlendMode
-
- public let alpha: CGFloat
-
- public let backgroundColor: KFCrossPlatformColor?
-
-
-
-
-
-
-
- public init(blendMode: CGBlendMode, alpha: CGFloat = 1.0, backgroundColor: KFCrossPlatformColor? = nil) {
- self.blendMode = blendMode
- self.alpha = alpha
- self.backgroundColor = backgroundColor
- var identifier = "com.onevcat.Kingfisher.BlendImageProcessor(\(blendMode.rawValue),\(alpha))"
- if let color = backgroundColor {
- identifier.append("_\(color.hex)")
- }
- self.identifier = identifier
- }
-
-
-
-
-
-
-
-
- public func process(item: ImageProcessItem, options: KingfisherParsedOptionsInfo) -> KFCrossPlatformImage? {
- switch item {
- case .image(let image):
- return image.kf.scaled(to: options.scaleFactor)
- .kf.image(withBlendMode: blendMode, alpha: alpha, backgroundColor: backgroundColor)
- case .data:
- return (DefaultImageProcessor.default |> self).process(item: item, options: options)
- }
- }
- }
- #endif
- #if os(macOS)
- public struct CompositingImageProcessor: ImageProcessor {
-
-
- public let identifier: String
-
- public let compositingOperation: NSCompositingOperation
-
- public let alpha: CGFloat
-
- public let backgroundColor: KFCrossPlatformColor?
-
-
-
-
-
-
-
-
- public init(compositingOperation: NSCompositingOperation,
- alpha: CGFloat = 1.0,
- backgroundColor: KFCrossPlatformColor? = nil)
- {
- self.compositingOperation = compositingOperation
- self.alpha = alpha
- self.backgroundColor = backgroundColor
- var identifier = "com.onevcat.Kingfisher.CompositingImageProcessor(\(compositingOperation.rawValue),\(alpha))"
- if let color = backgroundColor {
- identifier.append("_\(color.hex)")
- }
- self.identifier = identifier
- }
-
-
-
-
-
-
-
-
- public func process(item: ImageProcessItem, options: KingfisherParsedOptionsInfo) -> KFCrossPlatformImage? {
- switch item {
- case .image(let image):
- return image.kf.scaled(to: options.scaleFactor)
- .kf.image(
- withCompositingOperation: compositingOperation,
- alpha: alpha,
- backgroundColor: backgroundColor)
- case .data:
- return (DefaultImageProcessor.default |> self).process(item: item, options: options)
- }
- }
- }
- #endif
- public struct RoundCornerImageProcessor: ImageProcessor {
-
- public enum Radius {
-
-
- case widthFraction(CGFloat)
-
-
- case heightFraction(CGFloat)
-
- case point(CGFloat)
- var radiusIdentifier: String {
- switch self {
- case .widthFraction(let f):
- return "w_frac_\(f)"
- case .heightFraction(let f):
- return "h_frac_\(f)"
- case .point(let p):
- return p.description
- }
- }
- }
-
-
- public let identifier: String
-
-
-
- public let radius: Radius
-
-
- public let roundingCorners: RectCorner
-
-
- public let targetSize: CGSize?
-
- public let backgroundColor: KFCrossPlatformColor?
-
-
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-
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-
-
-
-
-
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- public init(
- cornerRadius: CGFloat,
- targetSize: CGSize? = nil,
- roundingCorners corners: RectCorner = .all,
- backgroundColor: KFCrossPlatformColor? = nil
- )
- {
- let radius = Radius.point(cornerRadius)
- self.init(radius: radius, targetSize: targetSize, roundingCorners: corners, backgroundColor: backgroundColor)
- }
-
-
-
-
-
-
-
-
-
- public init(
- radius: Radius,
- targetSize: CGSize? = nil,
- roundingCorners corners: RectCorner = .all,
- backgroundColor: KFCrossPlatformColor? = nil
- )
- {
- self.radius = radius
- self.targetSize = targetSize
- self.roundingCorners = corners
- self.backgroundColor = backgroundColor
- self.identifier = {
- var identifier = ""
- if let size = targetSize {
- identifier = "com.onevcat.Kingfisher.RoundCornerImageProcessor" +
- "(\(radius.radiusIdentifier)_\(size)\(corners.cornerIdentifier))"
- } else {
- identifier = "com.onevcat.Kingfisher.RoundCornerImageProcessor" +
- "(\(radius.radiusIdentifier)\(corners.cornerIdentifier))"
- }
- if let backgroundColor = backgroundColor {
- identifier += "_\(backgroundColor)"
- }
- return identifier
- }()
- }
-
-
-
-
-
-
-
-
-
- public func process(item: ImageProcessItem, options: KingfisherParsedOptionsInfo) -> KFCrossPlatformImage? {
- switch item {
- case .image(let image):
- let size = targetSize ?? image.kf.size
- let cornerRadius: CGFloat
- switch radius {
- case .point(let point):
- cornerRadius = point
- case .widthFraction(let widthFraction):
- cornerRadius = size.width * widthFraction
- case .heightFraction(let heightFraction):
- cornerRadius = size.height * heightFraction
- }
- return image.kf.scaled(to: options.scaleFactor)
- .kf.image(
- withRoundRadius: cornerRadius,
- fit: size,
- roundingCorners: roundingCorners,
- backgroundColor: backgroundColor)
- case .data:
- return (DefaultImageProcessor.default |> self).process(item: item, options: options)
- }
- }
- }
- public enum ContentMode {
-
- case none
-
- case aspectFit
-
- case aspectFill
- }
- public struct ResizingImageProcessor: ImageProcessor {
-
-
-
- public let identifier: String
-
-
- public let referenceSize: CGSize
-
-
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- public let targetContentMode: ContentMode
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- public init(referenceSize: CGSize, mode: ContentMode = .none) {
- self.referenceSize = referenceSize
- self.targetContentMode = mode
-
- if mode == .none {
- self.identifier = "com.onevcat.Kingfisher.ResizingImageProcessor(\(referenceSize))"
- } else {
- self.identifier = "com.onevcat.Kingfisher.ResizingImageProcessor(\(referenceSize), \(mode))"
- }
- }
-
-
-
-
-
-
-
-
-
- public func process(item: ImageProcessItem, options: KingfisherParsedOptionsInfo) -> KFCrossPlatformImage? {
- switch item {
- case .image(let image):
- return image.kf.scaled(to: options.scaleFactor)
- .kf.resize(to: referenceSize, for: targetContentMode)
- case .data:
- return (DefaultImageProcessor.default |> self).process(item: item, options: options)
- }
- }
- }
- public struct BlurImageProcessor: ImageProcessor {
-
-
-
- public let identifier: String
-
-
- public let blurRadius: CGFloat
-
-
-
- public init(blurRadius: CGFloat) {
- self.blurRadius = blurRadius
- self.identifier = "com.onevcat.Kingfisher.BlurImageProcessor(\(blurRadius))"
- }
-
-
-
-
-
-
-
-
-
- public func process(item: ImageProcessItem, options: KingfisherParsedOptionsInfo) -> KFCrossPlatformImage? {
- switch item {
- case .image(let image):
- let radius = blurRadius * options.scaleFactor
- return image.kf.scaled(to: options.scaleFactor)
- .kf.blurred(withRadius: radius)
- case .data:
- return (DefaultImageProcessor.default |> self).process(item: item, options: options)
- }
- }
- }
- public struct OverlayImageProcessor: ImageProcessor {
-
-
-
- public let identifier: String
-
-
- public let overlay: KFCrossPlatformColor
-
-
- public let fraction: CGFloat
-
-
-
-
-
-
- public init(overlay: KFCrossPlatformColor, fraction: CGFloat = 0.5) {
- self.overlay = overlay
- self.fraction = fraction
- self.identifier = "com.onevcat.Kingfisher.OverlayImageProcessor(\(overlay.hex)_\(fraction))"
- }
-
-
-
-
-
-
-
-
-
- public func process(item: ImageProcessItem, options: KingfisherParsedOptionsInfo) -> KFCrossPlatformImage? {
- switch item {
- case .image(let image):
- return image.kf.scaled(to: options.scaleFactor)
- .kf.overlaying(with: overlay, fraction: fraction)
- case .data:
- return (DefaultImageProcessor.default |> self).process(item: item, options: options)
- }
- }
- }
- public struct TintImageProcessor: ImageProcessor {
-
-
-
- public let identifier: String
-
-
- public let tint: KFCrossPlatformColor
-
-
-
-
- public init(tint: KFCrossPlatformColor) {
- self.tint = tint
- self.identifier = "com.onevcat.Kingfisher.TintImageProcessor(\(tint.hex))"
- }
-
-
-
-
-
-
-
-
-
- public func process(item: ImageProcessItem, options: KingfisherParsedOptionsInfo) -> KFCrossPlatformImage? {
- switch item {
- case .image(let image):
- return image.kf.scaled(to: options.scaleFactor)
- .kf.tinted(with: tint)
- case .data:
- return (DefaultImageProcessor.default |> self).process(item: item, options: options)
- }
- }
- }
- public struct ColorControlsProcessor: ImageProcessor {
-
-
-
- public let identifier: String
-
-
- public let brightness: CGFloat
-
-
- public let contrast: CGFloat
-
-
- public let saturation: CGFloat
-
-
- public let inputEV: CGFloat
-
-
-
-
-
-
-
-
- public init(brightness: CGFloat, contrast: CGFloat, saturation: CGFloat, inputEV: CGFloat) {
- self.brightness = brightness
- self.contrast = contrast
- self.saturation = saturation
- self.inputEV = inputEV
- self.identifier = "com.onevcat.Kingfisher.ColorControlsProcessor(\(brightness)_\(contrast)_\(saturation)_\(inputEV))"
- }
-
-
-
-
-
-
-
-
-
- public func process(item: ImageProcessItem, options: KingfisherParsedOptionsInfo) -> KFCrossPlatformImage? {
- switch item {
- case .image(let image):
- return image.kf.scaled(to: options.scaleFactor)
- .kf.adjusted(brightness: brightness, contrast: contrast, saturation: saturation, inputEV: inputEV)
- case .data:
- return (DefaultImageProcessor.default |> self).process(item: item, options: options)
- }
- }
- }
- public struct BlackWhiteProcessor: ImageProcessor {
-
-
-
- public let identifier = "com.onevcat.Kingfisher.BlackWhiteProcessor"
-
-
- public init() {}
-
-
-
-
-
-
-
-
-
- public func process(item: ImageProcessItem, options: KingfisherParsedOptionsInfo) -> KFCrossPlatformImage? {
- return ColorControlsProcessor(brightness: 0.0, contrast: 1.0, saturation: 0.0, inputEV: 0.7)
- .process(item: item, options: options)
- }
- }
- public struct CroppingImageProcessor: ImageProcessor {
-
-
-
- public let identifier: String
-
-
- public let size: CGSize
-
-
-
-
-
- public let anchor: CGPoint
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- public init(size: CGSize, anchor: CGPoint = CGPoint(x: 0.5, y: 0.5)) {
- self.size = size
- self.anchor = anchor
- self.identifier = "com.onevcat.Kingfisher.CroppingImageProcessor(\(size)_\(anchor))"
- }
-
-
-
-
-
-
-
-
-
- public func process(item: ImageProcessItem, options: KingfisherParsedOptionsInfo) -> KFCrossPlatformImage? {
- switch item {
- case .image(let image):
- return image.kf.scaled(to: options.scaleFactor)
- .kf.crop(to: size, anchorOn: anchor)
- case .data: return (DefaultImageProcessor.default |> self).process(item: item, options: options)
- }
- }
- }
- public struct DownsamplingImageProcessor: ImageProcessor {
-
-
-
-
- public let size: CGSize
-
-
-
- public let identifier: String
-
-
-
-
- public init(size: CGSize) {
- self.size = size
- self.identifier = "com.onevcat.Kingfisher.DownsamplingImageProcessor(\(size))"
- }
-
-
-
-
-
-
-
-
-
- public func process(item: ImageProcessItem, options: KingfisherParsedOptionsInfo) -> KFCrossPlatformImage? {
- switch item {
- case .image(let image):
- guard let data = image.kf.data(format: .unknown) else {
- return nil
- }
- return KingfisherWrapper.downsampledImage(data: data, to: size, scale: options.scaleFactor)
- case .data(let data):
- return KingfisherWrapper.downsampledImage(data: data, to: size, scale: options.scaleFactor)
- }
- }
- }
- infix operator |>: AdditionPrecedence
- public func |>(left: ImageProcessor, right: ImageProcessor) -> ImageProcessor {
- return left.append(another: right)
- }
- extension KFCrossPlatformColor {
- var hex: String {
- var r: CGFloat = 0
- var g: CGFloat = 0
- var b: CGFloat = 0
- var a: CGFloat = 0
- #if os(macOS)
- (usingColorSpace(.sRGB) ?? self).getRed(&r, green: &g, blue: &b, alpha: &a)
- #else
- getRed(&r, green: &g, blue: &b, alpha: &a)
- #endif
- let rInt = Int(r * 255) << 24
- let gInt = Int(g * 255) << 16
- let bInt = Int(b * 255) << 8
- let aInt = Int(a * 255)
-
- let rgba = rInt | gInt | bInt | aInt
-
- return String(format:"#%08x", rgba)
- }
- }
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