45 lines
1.2 KiB
Swift
45 lines
1.2 KiB
Swift
import Foundation
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extension NSSize {
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/// Scales the current size to fit within the target size while maintaining the aspect ratio.
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/// - Parameter targetSize: The size to fit into.
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/// - Returns: A new `NSSize` that fits within the `targetSize`.
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func scaledToFit(in targetSize: NSSize) -> NSSize {
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guard self.width > 0 && self.height > 0 else {
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return .zero // Avoid division by zero if the size is invalid.
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}
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let widthScale = targetSize.width / self.width
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let heightScale = targetSize.height / self.height
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let scale = min(widthScale, heightScale)
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return NSSize(width: self.width * scale, height: self.height * scale)
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}
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func scaledDown(to desiredWidth: CGFloat) -> NSSize {
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if width == desiredWidth {
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return self
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}
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if width < desiredWidth {
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// Don't scale larger
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return self
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}
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let height = (height * desiredWidth / width).rounded(.down)
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return NSSize(width: desiredWidth, height: height)
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}
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}
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extension NSSize {
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var ratio: CGFloat {
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guard height != 0 else {
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return 0
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}
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return width / height
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}
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}
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