ZacharyZhang-NY
b7fca0146d
ElyDoc, ElyTable, ElyShow (LibreOfficeKit), ElyPDF (MuPDF), ElyTree (Git), ElyMark (Milkdown and CodeMirror in CEF). ElyMail and ElyAgent follow.
23 lines
1.1 KiB
Swift
23 lines
1.1 KiB
Swift
// Renders SVGs to transparent PNGs. Usage: icon <px> <in.svg> <out.png>...
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import AppKit
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let args = CommandLine.arguments
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guard args.count >= 4, args.count % 2 == 0, let size = Int(args[1]) else {
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FileHandle.standardError.write("usage: icon <px> <in.svg> <out.png>...\n".data(using: .utf8)!)
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exit(2)
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}
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for pair in stride(from: 2, to: args.count, by: 2) {
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guard let svg = NSImage(contentsOfFile: args[pair]) else {
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FileHandle.standardError.write("icon: cannot read \(args[pair])\n".data(using: .utf8)!)
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exit(1)
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}
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let rep = NSBitmapImageRep(bitmapDataPlanes: nil, pixelsWide: size, pixelsHigh: size,
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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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NSGraphicsContext.saveGraphicsState()
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NSGraphicsContext.current = NSGraphicsContext(bitmapImageRep: rep)
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svg.draw(in: NSRect(x: 0, y: 0, width: size, height: size))
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NSGraphicsContext.restoreGraphicsState()
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try rep.representation(using: .png, properties: [:])!.write(to: URL(fileURLWithPath: args[pair + 1]))
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}
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