51 lines
1.6 KiB
Swift
51 lines
1.6 KiB
Swift
import AppKit
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let size = NSSize(width: 1024, height: 1024)
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guard let rep = NSBitmapImageRep(
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bitmapDataPlanes: nil, pixelsWide: 1024, pixelsHigh: 1024,
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bitsPerSample: 8, samplesPerPixel: 4, hasAlpha: true, isPlanar: false,
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colorSpaceName: .deviceRGB, bytesPerRow: 0, bitsPerPixel: 0
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) else { exit(1) }
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NSGraphicsContext.saveGraphicsState()
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NSGraphicsContext.current = NSGraphicsContext(bitmapImageRep: rep)
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NSGraphicsContext.current?.imageInterpolation = .high
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let gradient = NSGradient(colors: [
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NSColor(calibratedRed: 0.20, green: 0.42, blue: 0.95, alpha: 1),
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NSColor(calibratedRed: 0.10, green: 0.20, blue: 0.60, alpha: 1),
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])!
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gradient.draw(in: NSRect(origin: .zero, size: size), angle: -45)
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let canvas = NSRect(origin: .zero, size: size)
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NSColor.white.withAlphaComponent(0.92).setStroke()
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let border = NSBezierPath(roundedRect: canvas.insetBy(dx: 64, dy: 64), xRadius: 64, yRadius: 64)
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border.lineWidth = 28
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border.stroke()
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let glyphColor = NSColor.white
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let attrs: [NSAttributedString.Key: Any] = [
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.font: NSFont.systemFont(ofSize: 520, weight: .semibold),
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.foregroundColor: glyphColor,
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]
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let glyph = "Aa"
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let glyphSize = glyph.size(withAttributes: attrs)
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glyph.draw(
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at: NSPoint(
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x: (1024 - glyphSize.width) / 2,
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y: (1024 - glyphSize.height) / 2 - 40
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),
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withAttributes: attrs
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)
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NSGraphicsContext.restoreGraphicsState()
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guard let data = rep.representation(using: .png, properties: [:]) else { exit(1) }
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if CommandLine.arguments.count < 2 { exit(1) }
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do {
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try data.write(to: URL(fileURLWithPath: CommandLine.arguments[1]))
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} catch {
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exit(1)
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}
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