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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| import SwiftUI | ||
|
|
||
| struct HomeBackground: View { | ||
| var body: some View { | ||
| GeometryReader { geometry in | ||
| Image(systemName: "key.fill", size: .init(width: 64, height: 64), padding: .init(width: 12, height: 24)) | ||
| .resizable(resizingMode: .tile) | ||
| .modifier(InvertIfDark()) | ||
| .opacity(0.05) | ||
| .frame(width: geometry.size.width * 1.5, height: geometry.size.height * 1.5) | ||
| .rotationEffect(.radians(-0.3)) | ||
| .offset(x: -geometry.size.width * 0.25, y: -geometry.size.height * 0.25) | ||
| } | ||
| } | ||
| } | ||
|
|
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| struct InvertIfDark: ViewModifier { | ||
| @Environment(\.colorScheme) private var colorScheme | ||
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| func body(content: Content) -> some View { | ||
| if colorScheme == .dark { | ||
| content.colorInvert() | ||
| } else { | ||
| content | ||
| } | ||
| } | ||
| } | ||
|
|
||
| extension Image { | ||
| init(systemName: String, size: CGSize, padding: CGSize = .zero) { | ||
| self.init(uiImage: UIImage(systemName: systemName)!.resizeImage(targetSize: size).addImagePadding(padding: padding)) | ||
| } | ||
| } | ||
|
|
||
| extension UIImage { | ||
| // https://stackoverflow.com/a/31314494/1549818 | ||
| func resizeImage(targetSize: CGSize) -> UIImage { | ||
| let widthRatio = targetSize.width / size.width | ||
| let heightRatio = targetSize.height / size.height | ||
|
|
||
| // Figure out what our orientation is, and use that to form the rectangle | ||
| var newSize: CGSize | ||
| if widthRatio > heightRatio { | ||
| newSize = CGSize(width: size.width * heightRatio, height: size.height * heightRatio) | ||
| } else { | ||
| newSize = CGSize(width: size.width * widthRatio, height: size.height * widthRatio) | ||
| } | ||
|
|
||
| // This is the rect that we've calculated out and this is what is actually used below | ||
| let rect = CGRect(x: 0, y: 0, width: newSize.width, height: newSize.height) | ||
|
|
||
| // Actually do the resizing to the rect using the ImageContext stuff | ||
| UIGraphicsBeginImageContextWithOptions(newSize, false, 1.0) | ||
| draw(in: rect) | ||
| let newImage = UIGraphicsGetImageFromCurrentImageContext() | ||
| UIGraphicsEndImageContext() | ||
|
|
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| return newImage! | ||
| } | ||
|
|
||
| // https://stackoverflow.com/a/39480016/1549818 | ||
| func addImagePadding(padding: CGSize) -> UIImage { | ||
| let width = size.width + padding.width | ||
| let height = size.height + padding.height | ||
| let origin = CGPoint(x: (width - size.width) / 2, y: (height - size.height) / 2) | ||
|
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| UIGraphicsBeginImageContextWithOptions(CGSize(width: width, height: height), false, 0) | ||
| draw(at: origin) | ||
| let imageWithPadding = UIGraphicsGetImageFromCurrentImageContext() | ||
| UIGraphicsEndImageContext() | ||
|
|
||
| return imageWithPadding! | ||
| } | ||
| } | ||
|
|
||
| #Preview { | ||
| HomeBackground() | ||
| } |
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