Setting up source code for Avalonia port.

src.4.7/MainWindow.xaml.cs

@@ -0,0 +1,70 @@
+using csmic;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Input;
+
+namespace AdvancedCalculator
+{
+    /// <summary>
+    /// Interaction logic for MainWindow.xaml
+    /// </summary>
+    public partial class MainWindow : Window
+    {
+        private InputInterpreter interpreter = new InputInterpreter();
+
+        private List<HistoryItem> historyItems = new List<HistoryItem>();
+
+        private List<VariableItem> variableItems = new List<VariableItem>();
+
+        public MainWindow()
+        {
+            InitializeComponent();
+        }
+
+        private async void txtInput_KeyDown(object sender, KeyEventArgs e)
+        {
+            if(e.Key == Key.Enter)
+            {
+                var input = this.txtInput.Text;
+
+                await Task.Run(() =>
+                {
+                    this.interpreter.Interpret(input);
+                    this.historyItems.Add(new HistoryItem() { Input = input, Output = this.interpreter.Output });
+                    this.variableItems = this.interpreter.Variables.Select(kp => new VariableItem() { VariableName = kp.Key, Value = kp.Value.Value.ToString(), ExpressionVisibility = kp.Value.Type == VariableType.Equation ? Visibility.Visible : Visibility.Hidden, ExpressionComputation = "", Icon = IconFont.Variable }).ToList();
+                    foreach(var expressionVariable in this.variableItems.Where(v => v.ExpressionVisibility == Visibility.Visible))
+                    {
+                        this.interpreter.Interpret(expressionVariable.Value);
+                        expressionVariable.ExpressionComputation = this.interpreter.Output;
+                        expressionVariable.Icon = IconFont.Function;
+                    }
+                });
+
+                this.txtInput.Clear();
+
+                this.lvHistory.ItemsSource = this.historyItems;
+                this.lvHistory.Items.Refresh();
+
+                this.lvVariableList.ItemsSource = this.variableItems;
+                this.lvVariableList.Items.Refresh();
+
+                this.lvHistory.Items.MoveCurrentToLast();
+                this.lvHistory.ScrollIntoView(this.lvHistory.Items.CurrentItem);
+            }
+        }
+
+        private void btnFx_Click(object sender, RoutedEventArgs e)
+        {
+            if(this.rdFxDefinitions.Height.Value == 0)
+            {
+                this.rdFxDefinitions.Height = new GridLength(1, GridUnitType.Star);
+            }
+            else
+            {
+                this.rdFxDefinitions.Height = new GridLength(0, GridUnitType.Pixel);
+            }
+        }
+    }
+}