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Merge pull request #11 from soramitsu/feature/icon-generator
FLW-106 Implement icon generation from public key
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| import UIKit | ||
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| public extension UIColor { | ||
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| //MARK: - Public method | ||
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| /** | ||
| Creates UIColor object based on given HSL values. | ||
| - parameter hue: CGFloat with the hue value. Hue value must be between 0 and 360. | ||
| - parameter saturation: CGFloat with the saturation value. Saturation value must be between 0 and 1. | ||
| - parameter lightness: CGFloat with the lightness value. Lightness value must be between 0 and 1. | ||
| - returns: A UIColor from the given HSL values. | ||
| */ | ||
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| class func colorWithHSL(hue: CGFloat, saturation: CGFloat, lightness: CGFloat) -> UIColor { | ||
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| var r: CGFloat = 0 | ||
| var g: CGFloat = 0 | ||
| var b: CGFloat = 0 | ||
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| let h = max(min(hue, 360.0), 0.0) | ||
| let s = max(min(saturation, 1.0), 0.0) | ||
| let l = max(min(lightness, 1.0), 0.0) | ||
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| let c: CGFloat = (1 - abs((2.0 * l) - 1)) * s | ||
| let h60: CGFloat = h / 60.0 | ||
| let x: CGFloat = c * CGFloat(1 - abs(h60.truncatingRemainder(dividingBy: 2.0) - 1)) | ||
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| if (h < 60.0) { | ||
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| r = c | ||
| g = x | ||
| } | ||
| else if (h < 120.0) | ||
| { | ||
| r = x | ||
| g = c | ||
| } | ||
| else if (h < 180.0) | ||
| { | ||
| g = c | ||
| b = x | ||
| } | ||
| else if (h < 240.0) | ||
| { | ||
| g = x | ||
| b = c | ||
| } | ||
| else if (h < 300.0) | ||
| { | ||
| r = x | ||
| b = c | ||
| } | ||
| else if (h < 360.0) | ||
| { | ||
| r = c | ||
| b = x | ||
| } | ||
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| let m: CGFloat = lightness - (c / 2.0) | ||
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| r = r + m | ||
| g = g + m | ||
| b = b + m | ||
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| return UIColor(red: r, green: g, blue: b, alpha: 1.0) | ||
| } | ||
| } |
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