git.r.bdr.sh - rbdr/patterns/blob - README.md

   1 # Patterns
   2
   3 SwiftUI tiling black and white patterns.
   4
   5 This project contains `Patterns`, which are built out of `Tiles` with a given
   6 `TileDesign`.
   7
   8 It also includes a `TilePicker` that can be used to control the selected
   9 design.
  10
  11 ## Available Tile Designs
  12
  13 The `TileDesign` enum contains the following patterns (shown in the image from
  14 top left to bottom right)
  15
  16 ![Image showing the included patterns]
  17
  18 * `.grid`
  19 * `.dottedGrid`
  20 * `.stitch`
  21 * `.curvedTile`
  22 * `.brick`
  23 * `.tile`
  24 * `.shadowGrid`
  25 * `.circles`
  26 * `.trees`
  27 * `.shingles`
  28 * `.wicker`
  29 * `.rhombus`
  30 * `.balls`
  31
  32 ## Usage
  33
  34 The `Pattern` view will tile the selected design in its frame. It has the
  35 following properties:
  36
  37 * `design: TileDesign`: **required, @Binding**, which design to tile the frame with.
  38 * `pixelSize: CGFloat`: **defaults to 2.0**, the size of a pixel in the tile.
  39 * `foregroundColor: Color`: **defaults to `Color.black`**, the foreground color.
  40 * `backgroundColor: Color`: **defaults to `Color.white`**, the background color.
  41
  42 ```
  43 // Pattern using default settings
  44 Pattern(design: .constant(TileDesign.shadowGrid))
  45
  46 // Pattern using overrides
  47 Pattern(design: $tileDesign, pixelSize: 4.0, foregroundColor: .pink, backgroundColor: .cyan)
  48 ```
  49
  50 ## Using the PatternPicker
  51
  52 The pattern picker view is intended to be used when you want to allow users to
  53 change the design of the pattern.
  54
  55 * `selectedDesign: TileDesign`: **required, @Binding**, the current selected
  56   tile design.
  57 * `selectedColor: Color`: **defaults to `Color.accentColor`**, the color of the
  58   border around the selected tile design.
  59
  60 It also has `pixelSize`, `foregroundColor`, and `backgroundColor` with the
  61 same effect as `Pattern` mentioned above
  62
  63
  64 ```
  65 @State var design: TileDesign = .brick
  66 @State var shouldShowPatternPicker = false
  67
  68 ...
  69
  70 Pattern(design: $pattern)
  71   .frame(width: 32.0).border(.black)
  72   .onTapGesture {
  73     shouldShowPatternPicker = !shouldShowPatternPicker;
  74   }
  75   .popover(isPresented: $shouldShowPatternPicker) {
  76     PatternPicker(selectedDesign: $design)
  77   }
  78   .onChange(of: pattern) { _ in
  79     shouldShowPatternPicker = false;
  80   }
  81 ```