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https://github.com/VibedByKaKi/t3-code-android-nightly.git
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f6cc6bc7e9
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com> Co-authored-by: Julius Marminge <julius0216@outlook.com>
60 lines
2.9 KiB
Swift
60 lines
2.9 KiB
Swift
import UIKit
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func check(_ passed: Bool, _ message: String = "Failed layout check") {
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if !passed {
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FileHandle.standardError.write(Data((message + "\n").utf8))
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exit(1)
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}
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}
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// Runs the production layout against UIKit through Mac Catalyst, without launching an app.
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let font = UIFont.monospacedSystemFont(ofSize: 14, weight: .regular)
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let characterWidth = ("M" as NSString).size(withAttributes: [.font: font]).width
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let fixtures = ["漢字表示", "e\u{301}", "👨👩👧👦", "مرحبا بالعالم ", "\tvalue "]
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var cases = 0
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for fixture in fixtures {
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let text = String(repeating: fixture, count: 40)
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var previousHeight = CGFloat.greatestFiniteMagnitude
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for width: CGFloat in [180, 280, 420] {
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let layout = ReviewDiffCodeLayout(text: text, font: font, width: width, characterWidth: characterWidth)
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let height = layout.firstLineHeight + layout.extraHeight
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check(height <= previousHeight, "Wider text must not require more height")
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previousHeight = height
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let fullRange = NSRange(location: 0, length: text.utf16.count)
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let attributed = NSAttributedString(string: text, attributes: [.foregroundColor: UIColor.black])
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layout.decorate(text: attributed, highlights: [], color: .clear, version: 0)
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let format = UIGraphicsImageRendererFormat()
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format.scale = 1
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format.opaque = false
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format.preferredRange = .standard
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let size = CGSize(width: width + 40, height: ceil(height))
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let image = UIGraphicsImageRenderer(size: size, format: format).image { _ in
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layout.draw(at: .zero, clip: CGRect(origin: .zero, size: size))
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}
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let bitmap = image.cgImage!
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let data = bitmap.dataProvider!.data!
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let bytes = CFDataGetBytePtr(data)!
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// Render without a viewport clip so an overflowing glyph cannot hide behind clipping.
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for y in 0..<bitmap.height {
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for x in Int(width) + 1..<bitmap.width {
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check(bytes[y * bitmap.bytesPerRow + x * 4 + 3] == 0, "Ink outside viewport: \(fixture) x=\(x) y=\(y) bpp=\(bitmap.bitsPerPixel) alpha=\(bitmap.alphaInfo.rawValue)")
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}
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}
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// Updating highlights and syntax colors must preserve measured geometry.
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layout.decorate(text: attributed, highlights: [fullRange], color: .green, version: 1)
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check(layout.firstLineHeight + layout.extraHeight == height)
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cases += 1
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}
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}
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let ascii = String(repeating: "const value = 123; ", count: 100)
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let layout = ReviewDiffCodeLayout(text: ascii, font: font, width: 280, characterWidth: characterWidth)
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let string = ascii as NSString
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var reconstructed = ""
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for (index, start) in layout.starts.enumerated() {
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let end = index + 1 < layout.starts.count ? layout.starts[index + 1] : string.length
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let segment = string.substring(with: NSRange(location: start, length: end - start))
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check((segment as NSString).size(withAttributes: [.font: font]).width <= 280)
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reconstructed += segment
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}
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check(reconstructed == ascii)
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print("Passed \(cases) Unicode/width cases, color-update geometry, and ASCII coverage")
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