120 lines
3.6 KiB
Swift
120 lines
3.6 KiB
Swift
//
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// CircularProgress.swift
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// secant-testnet
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//
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// Created by Lukáš Korba on 27.06.2022.
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//
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import SwiftUI
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import Generated
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struct CircularProgress: View {
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let outerCircleProgress: Float
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let innerCircleProgress: Float
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let maxSegments: Int
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let innerCircleHidden: Bool
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var outerCircleProgressCG: CGFloat {
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CGFloat(outerCircleProgress)
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}
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var innerCircleProgressCG: CGFloat {
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CGFloat(innerCircleProgress)
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}
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var body: some View {
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let segmentTrimComputed = segmentTrim
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let gap = (2.0 / 360.0) // 2 degrees
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return ZStack {
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if !innerCircleHidden {
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Circle()
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.trim(
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from: 0.0,
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to: innerCircleProgressCG
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)
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.stroke(
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Asset.Colors.ProgressIndicator.negativeSpace.color,
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style: StrokeStyle(lineWidth: 17.0, dash: [2])
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)
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.rotationEffect(Angle(degrees: -90))
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}
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ForEach((0..<maxSegments), id: \.self) {
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Circle()
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.trim(
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from: fromValue($0, segmentTrimComputed, 1.0),
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to: toValue($0, segmentTrimComputed, 1.0, gap)
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)
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.stroke(
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Asset.Colors.ProgressIndicator.negativeSpace.color,
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lineWidth: 5.0
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)
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.scaleEffect(1.15)
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.opacity(0.2)
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.rotationEffect(Angle(degrees: -90))
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Circle()
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.trim(
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from: fromValue($0, segmentTrimComputed, outerCircleProgressCG),
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to: toValue($0, segmentTrimComputed, outerCircleProgressCG, gap)
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)
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.stroke(
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Asset.Colors.ProgressIndicator.negativeSpace.color,
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lineWidth: 5.0
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)
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.scaleEffect(1.15)
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.rotationEffect(Angle(degrees: -90))
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}
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}
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}
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}
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extension CircularProgress {
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var segmentTrim: CGFloat {
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guard maxSegments != 0 else { return 1.0 }
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return CGFloat(1.0 / Double(maxSegments))
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}
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func fromValue(_ segmentIndex: Int, _ segmentTrim: CGFloat, _ progress: CGFloat) -> CGFloat {
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var result = segmentTrim * CGFloat(segmentIndex)
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if result > progress {
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result = 0
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}
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return result
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}
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func toValue(_ segmentIndex: Int, _ segmentTrim: CGFloat, _ progress: CGFloat, _ gap: CGFloat) -> CGFloat {
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var result = fromValue(segmentIndex, segmentTrim, progress)
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if result > progress {
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result = 0
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} else if result + segmentTrim - gap < progress {
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result += segmentTrim - gap
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} else {
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result += progress - (segmentTrim * CGFloat(segmentIndex)) - gap
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}
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return result
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}
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}
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struct CircularProgress_Previews: PreviewProvider {
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static var previews: some View {
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GeometryReader { proxy in
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CircularProgress(
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outerCircleProgress: 0.33,
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innerCircleProgress: 0.8,
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maxSegments: 10,
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innerCircleHidden: true
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)
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.frame(width: proxy.size.width * 0.8, height: proxy.size.width * 0.8)
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.offset(x: 40, y: 200)
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}
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.applyScreenBackground()
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.preferredColorScheme(.light)
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}
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}
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