81 lines
2.6 KiB
Swift
81 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 QRCodeReaderView: UIView {
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private let cameraView = UIView()
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private weak var reader: QRCodeReader?
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public let overlay = QRCodeOverlayView()
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// MARK: - Intializers
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public init() {
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super.init(frame: .zero)
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overlay.backgroundColor = UIColor.black.withAlphaComponent(0.5)
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addSubview(cameraView)
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addSubview(overlay)
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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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public func setReader(_ reader: QRCodeReader) {
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reader.readerView = self
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self.reader = reader
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cameraView.layer.sublayers?.forEach {
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$0.removeFromSuperlayer()
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}
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cameraView.layer.insertSublayer(reader.previewLayer, at: 0)
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}
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public func updateRectOfInterestBasedOnFocusView() {
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guard let reader = reader, let focusView = overlay.focusView else {
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return
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}
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let focusViewRect = convert(focusView.frame, from: focusView)
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let interestRect = reader.previewLayer.metadataOutputRectConverted(fromLayerRect: focusViewRect)
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reader.metadataOutput.rectOfInterest = interestRect
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}
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override open func layoutSubviews() {
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super.layoutSubviews()
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reader?.previewLayer.frame = bounds
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overlay.frame = bounds
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updateRectOfInterestBasedOnFocusView()
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}
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}
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