git.r.bdr.sh - rbdr/patterns/blob - Sources/Patterns/Tile.swift

   1 import SwiftUI
   2
   3 public struct Tile: View {
   4
   5   public let design: TileDesign
   6   public var pixelSize: CGFloat = 2.0;
   7   public var foregroundColor: Color = .black
   8   public var backgroundColor: Color = .white
   9
  10   private var pixels: [Int] {
  11     design.pixels()
  12   }
  13
  14   public init(design: TileDesign, pixelSize: CGFloat = 2.0, foregroundColor: Color = .black, backgroundColor: Color = .white) {
  15     self.design = design
  16     self.pixelSize = pixelSize
  17     self.foregroundColor = foregroundColor
  18     self.backgroundColor = backgroundColor
  19   }
  20
  21     public var body: some View {
  22       VStack(spacing: 0) {
  23         ForEach(0 ..< 8) { i in
  24           HStack(spacing: 0) {
  25             ForEach(0 ..< 8) { j in
  26               Rectangle()
  27                 .frame(width: pixelSize, height: pixelSize)
  28                 .foregroundColor(pixels[(i % 8) * 8 + j % 8] == 0
  29                                   ? foregroundColor
  30                                   : backgroundColor
  31                 )
  32             }
  33           }
  34         }
  35       }
  36     }
  37 }
  38
  39 struct Tile_Previews: PreviewProvider {
  40     static var previews: some View {
  41       VStack {
  42         Text("Default")
  43         Tile(design: .grid)
  44         Text("Color override")
  45         Tile(design: .balls, foregroundColor: .pink, backgroundColor: .cyan)
  46         Text("Pixel size override")
  47         Tile(design: .shingles, pixelSize: 8.0)
  48       }
  49     }
  50 }