99 lines
2.6 KiB
Swift
99 lines
2.6 KiB
Swift
//
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// Copyright (c) 2021 Open Whisper Systems. All rights reserved.
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//
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import Foundation
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public typealias CVStackViewConfig = OWSStackView.Config
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// MARK: -
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public extension UIStackView {
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static func measure(config: CVStackViewConfig,
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subviewSizes: [CGSize],
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verboseLogging: Bool = false) -> CGSize {
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let spacingCount = max(0, subviewSizes.count - 1)
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var size = CGSize.zero
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switch config.axis {
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case .horizontal:
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size.width = subviewSizes.map { $0.width }.reduce(0, +)
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size.height = subviewSizes.map { $0.height }.reduce(0, max)
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if verboseLogging {
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Logger.verbose("size of subviews: \(size)")
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}
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size.width += CGFloat(spacingCount) * config.spacing
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if verboseLogging {
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Logger.verbose("size of subviews and spacing: \(size)")
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}
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case .vertical:
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size.width = subviewSizes.map { $0.width }.reduce(0, max)
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size.height = subviewSizes.map { $0.height }.reduce(0, +)
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if verboseLogging {
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Logger.verbose("size of subviews: \(size)")
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}
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size.height += CGFloat(spacingCount) * config.spacing
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if verboseLogging {
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Logger.verbose("size of subviews and spacing: \(size)")
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}
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@unknown default:
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owsFailDebug("Unknown axis: \(config.axis)")
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}
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size.width += config.layoutMargins.left + config.layoutMargins.right
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size.height += config.layoutMargins.top + config.layoutMargins.bottom
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if verboseLogging {
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Logger.verbose("size of subviews and spacing and layoutMargins: \(size)")
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}
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return size
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}
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func apply(config: CVStackViewConfig) {
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if self.axis != config.axis {
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self.axis = config.axis
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}
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if self.alignment != config.alignment {
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self.alignment = config.alignment
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}
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if self.spacing != config.spacing {
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self.spacing = config.spacing
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}
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if self.layoutMargins != config.layoutMargins {
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self.layoutMargins = config.layoutMargins
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}
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}
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}
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// MARK: -
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// TODO: Can this be moved to UIView+OWS.swift?
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public extension CGRect {
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var width: CGFloat {
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get {
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size.width
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}
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set {
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size.width = newValue
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}
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}
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var height: CGFloat {
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get {
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size.height
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}
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set {
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size.height = newValue
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}
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}
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}
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