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Color updates

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This commit is contained in:
Isaac
2023-11-23 17:38:42 +04:00
parent 5cd1fd89b1
commit b1fba62426
15 changed files with 983 additions and 1258 deletions
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29
submodules/Display/Source/UIKitUtils.swift
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@@ -286,6 +286,35 @@ public extension UIColor {
return self
}
func blendOver(background: UIColor) -> UIColor {
let base = background
let blend = self
func overlayChannel(baseChannel: CGFloat, blendChannel: CGFloat) -> CGFloat {
if baseChannel < 0.5 {
return 2 * baseChannel * blendChannel
} else {
return 1 - 2 * (1 - baseChannel) * (1 - blendChannel)
}
}
var baseRed: CGFloat = 0, baseGreen: CGFloat = 0, baseBlue: CGFloat = 0, baseAlpha: CGFloat = 0
base.getRed(&baseRed, green: &baseGreen, blue: &baseBlue, alpha: &baseAlpha)
var blendRed: CGFloat = 0, blendGreen: CGFloat = 0, blendBlue: CGFloat = 0, blendAlpha: CGFloat = 0
blend.getRed(&blendRed, green: &blendGreen, blue: &blendBlue, alpha: &blendAlpha)
var red = overlayChannel(baseChannel: baseRed, blendChannel: blendRed)
var green = overlayChannel(baseChannel: baseGreen, blendChannel: blendGreen)
var blue = overlayChannel(baseChannel: baseBlue, blendChannel: blendBlue)
red = max(0.0, min(1.0, red))
green = max(0.0, min(1.0, green))
blue = max(0.0, min(1.0, blue))
return UIColor(red: red, green: green, blue: blue, alpha: blendAlpha).blitOver(background, alpha: 1.0)
}
func withMultipliedAlpha(_ alpha: CGFloat) -> UIColor {
var r1: CGFloat = 0.0
var g1: CGFloat = 0.0