Add Settings

WaveshareUARTFingerprintSensor.Sample/SettingsDisplay.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using Terminal.Gui;
+
+namespace WaveshareUARTFingerprintSensor.Sample
+{
+    public class SettingsDisplay : Toplevel
+    {
+        private string _port;
+        private RadioGroup _radioPort;
+
+        public SettingsDisplay()
+        {
+            Init();
+        }
+
+        private void Init()
+        {
+            ColorScheme = Colors.Error;
+
+            // Creates the top-level window to show
+            var win = new Window("Settings")
+            {
+                X = 0,
+                Y = 0,
+
+                // By using Dim.Fill(), it will automatically resize without manual intervention
+                Width = Dim.Fill(),
+                Height = Dim.Fill()
+            };
+
+            win.ColorScheme = Colors.ColorSchemes["Dialog"];
+
+            Add(win);
+
+            // Window Content
+            var portLabel = new Label("Serial Port:")
+            {
+                X = 4,
+                Y = 3
+            };
+            _radioPort = new RadioGroup(new NStack.ustring[] { FingerprintSensor.PrimarySerialPort, FingerprintSensor.SecondarySerialPort })
+            {
+                X = Pos.Right(portLabel) + 2,
+                Y = Pos.Top(portLabel),
+                Width = Dim.Fill()
+            };
+
+            var saveButton = new Button("_Save")
+            {
+                X = Pos.Right(this) - 14,
+                Y = Pos.Bottom(this) - 4
+            };
+            saveButton.Clicked += () => { Save();  Application.RequestStop(); };
+
+            win.Add(portLabel, _radioPort, saveButton);
+        }
+
+        private void Save()
+        {
+            _port = _radioPort.RadioLabels[_radioPort.SelectedItem].ToString();
+
+            File.WriteAllText(TUIManager.SettingsFilePath, _port);
+        }
+    }
+}