86 lines
2.6 KiB
Swift
86 lines
2.6 KiB
Swift
//
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// Copyright (c) 2019 Touch Instinct
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the Software), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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import UIKit
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open class QRCodeFocusView: UIView {
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public var cornerColor: UIColor {
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didSet {
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if cornerColor != oldValue {
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setNeedsDisplay()
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}
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}
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}
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public var cornerLength: CGFloat {
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didSet {
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if cornerLength != oldValue {
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setNeedsDisplay()
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}
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}
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}
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public var cornerThickness: CGFloat {
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didSet {
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if cornerThickness != oldValue {
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setNeedsDisplay()
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}
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}
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}
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// MARK: - Public Initializers
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public init(cornerColor: UIColor,
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cornerLength: CGFloat,
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cornerThickness: CGFloat) {
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self.cornerColor = cornerColor
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self.cornerLength = cornerLength
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self.cornerThickness = cornerThickness
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super.init(frame: .zero)
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}
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required public init?(coder aDecoder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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// MARK: - Public Methods
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override open func setNeedsDisplay() {
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super.setNeedsDisplay()
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// Go up into view hierarchy, find QRCodeOverlayView and redraw it
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var currentSuperview = superview
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while let view = currentSuperview {
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if view is QRCodeOverlayView {
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view.setNeedsDisplay()
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return
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} else {
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currentSuperview = view.superview
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}
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}
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}
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}
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