Add missing CheckBoxView

RectangleSwiftUI/CheckMarks/CheckBoxView.swift

@@ -0,0 +1,51 @@
+//
+//  CheckBoxView.swift
+//  RectangleSwiftUI
+//
+//  Created by Tatiana Kornilova on 18/09/2019.
+//  Copyright © 2019 Tatiana Kornilova. All rights reserved.
+//
+
+import SwiftUI
+
+struct CheckBoxView: View {
+    @Environment(\.colorScheme) var colorSchema: ColorScheme
+    @Binding var line: Line
+
+    private var unckeckColor: Color {
+        colorSchema == ColorScheme.light ? .white : .black
+    }
+
+    var body: some View {
+        HStack(alignment: .bottom) {
+            Image(systemName: !line.isHidden ? "checkmark" : "minus")
+                .resizable()
+                .frame(width: 20, height: 20, alignment: .leading)
+                .foregroundColor(!line.isHidden ? .white : unckeckColor)
+
+            Text(line.title!)
+                .font(.body)
+                .foregroundColor(!line.isHidden ? .white : Color(uiColor: line.color!))
+            }
+        .frame(height: 10, alignment: .leading)
+        .padding()
+        .overlay(
+            RoundedRectangle(cornerRadius: 10)
+                .stroke(lineWidth: 6)
+                .foregroundColor(Color(uiColor: line.color!))
+        )
+            .background(!line.isHidden ? Color(uiColor: line.color!) : unckeckColor)
+            .cornerRadius(10)
+    }
+}
+
+struct CheckBoxView_Previews: PreviewProvider {
+    static var previews: some View {
+       var linen = chartsData[0].lines[0]
+        linen.isHidden = false
+        return NavigationView {
+            CheckBoxView(line: .constant(linen))
+        }
+        .colorScheme(.dark)
+    }
+}