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import SwiftUI
struct MapStages: View {
@Environment(\.colorScheme) var colorScheme
let mapSize: CGSize
let lineWidth: CGFloat
let stages: [CGFloat]
let opacity = 0.1
var color: MapColor {
MapColor.colorForScheme(colorScheme)
}
var body: some View {
ZStack(alignment: .topLeading) {
Path { path in
path.addRect(CGRect(x: 0, y: 0, width: w(stages[0]), height: mapSize.height))
}.fill(color.stages.i)
Path { path in
path.addRect(
CGRect(x: w(stages[0]), y: 0, width: w(stages[1]) - w(stages[0]), height: mapSize.height))
}.fill(color.stages.ii)
Path { path in
path.addRect(
CGRect(x: w(stages[1]), y: 0, width: w(stages[2]) - w(stages[1]), height: mapSize.height))
}.fill(color.stages.iii)
Path { path in
path.addRect(
CGRect(x: w(stages[2]), y: 0, width: mapSize.width - w(stages[2]), height: mapSize.height)
)
}.fill(color.stages.iv)
Path { path in
path.move(to: CGPoint(x: w(stages[0]), y: 0))
path.addLine(to: CGPoint(x: w(stages[0]), y: mapSize.height))
path.move(to: CGPoint(x: w(stages[1]), y: 0))
path.addLine(to: CGPoint(x: w(stages[1]), y: mapSize.height))
path.move(to: CGPoint(x: w(stages[2]), y: 0))
path.addLine(to: CGPoint(x: w(stages[2]), y: mapSize.height))
path.move(to: CGPoint(x: w(stages[0]), y: 0))
path.closeSubpath()
}.strokedPath(StrokeStyle(lineWidth: lineWidth, dash: [10.0])).stroke(color.foreground)
}
}
func w(_ dimension: CGFloat) -> CGFloat {
max(0.0, min(mapSize.width, dimension * mapSize.width / 100.0))
}
}
struct MapStages_Previews: PreviewProvider {
static var previews: some View {
MapStages(
mapSize: CGSize(width: 200.0, height: 200.0), lineWidth: CGFloat(1.0),
stages: [25.0, 50.0, 75.0])
}
}
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