Add readme, update API

[rbdr/patterns] / Sources / Patterns / PatternPicker.swift

diff --git a/Sources/Patterns/PatternPicker.swift b/Sources/Patterns/PatternPicker.swift
new file mode 100644 (file)
index 0000000..1f7d17b
--- /dev/null
+++ b/Sources/Patterns/PatternPicker.swift
@@ -0,0 +1,51 @@
+import SwiftUI
+
+public struct PatternPicker: View {
+  
+  @Binding var selectedDesign: TileDesign;
+  
+  var selectedColor: Color = .accentColor
+  var pixelSize: CGFloat = 2.0;
+  var foregroundColor: Color = .black
+  var backgroundColor: Color = .white
+  
+  let patterns = TileDesign.allCases
+
+  let verticalTileCount = Int(ceil(Double(TileDesign.allCases.count) / 5.0))
+  
+    public var body: some View {
+      VStack(alignment: .leading, spacing: 0) {
+        ForEach(0 ..< verticalTileCount, id: \.self) { i in
+          HStack(alignment: .top, spacing: 0) {
+            ForEach(0 ..< 5) { j in
+              if i * 5 + j < patterns.count {
+                Pattern(design: .constant(patterns[i * 5 + j]), pixelSize: pixelSize, foregroundColor: foregroundColor, backgroundColor: backgroundColor)
+                  .frame(width: pixelSize * 16, height: pixelSize * 12)
+                  .border(selectedDesign == patterns[i * 5 + j] ? selectedColor : foregroundColor, width: pixelSize / 2.0)
+                  .onTapGesture(perform: {
+                    selectedDesign = patterns[i * 5 + j]
+                  })
+              }
+            }
+          }
+        }
+      }.background(foregroundColor)
+    }
+}
+
+struct PatternPicker_Previews: PreviewProvider {
+    static var previews: some View {
+      VStack {
+        Text("Default")
+        PatternPicker(selectedDesign: .constant(TileDesign.shadowGrid))
+        Text("Selected color override")
+        PatternPicker(selectedDesign: .constant(TileDesign.shadowGrid),
+                      selectedColor: .red)
+        Text("Color override")
+        PatternPicker(selectedDesign: .constant(TileDesign.shadowGrid),
+                      foregroundColor: .pink, backgroundColor: .cyan)
+        Text("Pixel size override")
+        PatternPicker(selectedDesign: .constant(TileDesign.shadowGrid), pixelSize: 8.0)
+      }
+    }
+}