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

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