INNER CODE UNIT · Swift

available

wu9007/qrcode_scanner · ios/Classes/SwiftQrscanPlugin.swift:549

    let available = max(120, bounds.height - topBar - bottom)
    let size = min(bounds.width * 0.72, available * 0.92)
    let left = (bounds.width - size) / 2
    let top = topBar + max(0, (available - size) / 2)
    hole = CGRect(x: left, y: top, width: size, height: size)
    line.frame = CGRect(x: hole.minX + 8, y: hole.minY + 8, width: hole.width - 16, height: 2)
    hintLabel.frame = CGRect(x: hole.minX, y: hole.maxY + 16, width: hole.width, height: 40)
    titleLabel.frame = CGRect(x: 56, y: max(8, hole.minY - 36), width: bounds.width - 112, height: 24)
    setNeedsDisplay()
    if running { start() }
  }

  override func draw(_ rect: CGRect) {
    guard let ctx = UIGraphicsGetCurrentContext(), hole.width > 0 else { return }
    ctx.setFillColor(UIColor(white: 0, alpha: 0.55).cgColor)
    ctx.fill(CGRect(x: 0, y: 0, width: bounds.width, height: hole.minY))
    ctx.fill(CGRect(x: 0, y: hole.maxY, width: bounds.width, height: bounds.height - hole.maxY))
    ctx.fill(CGRect(x: 0, y: hole.minY, width: hole.minX, height: hole.height))

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