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Swift implementation to highlight Cocoa UI elements (http://stackoverflow.com/a/25984748/316803)
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| // Taken from: | |
| // https://gist.github.com/joelcox/28de2f0cb21ea47bd789 | |
| NSColor.selectedMenuItemColor().set() | |
| NSRectFillUsingOperation(dirtyRect, .CompositeSourceOver); | |
| if (dirtyRect.size.height > 1) { | |
| let heightMinus1 = dirtyRect.size.height - 1 | |
| let currentControlTint = NSColor.currentControlTint() | |
| let startingOpacity: CGFloat = currentControlTint == .BlueControlTint ? 0.16 : 0.09 | |
| let gradient = NSGradient(startingColor: NSColor(white: CGFloat(1.0), alpha:startingOpacity), endingColor:NSColor(white: CGFloat(1.0), alpha: 0.0))! | |
| let startPoint = NSMakePoint(dirtyRect.origin.x, dirtyRect.origin.y + heightMinus1) | |
| let endPoint = NSMakePoint(dirtyRect.origin.x, dirtyRect.origin.y + 1) | |
| gradient.drawFromPoint(startPoint, toPoint: endPoint, options:NSGradientDrawsBeforeStartingLocation) | |
| if currentControlTint == .BlueControlTint { | |
| NSColor(white: CGFloat(1.0), alpha: CGFloat(0.1)).set() | |
| let smallerRect = NSMakeRect(dirtyRect.origin.x, dirtyRect.origin.y + heightMinus1, dirtyRect.size.width, CGFloat(1.0)) | |
| NSRectFillUsingOperation(smallerRect, .CompositeSourceOver) | |
| } | |
| } |
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Updated for Swift 5 and modern types: https://gist.github.com/soffes/6a305de23f5663cf0e27f4b338606a3b
This doesn't match on Mojave though.