added Toolkit.UI.Avalonia

2024-04-13 11:34:23 +01:00
parent 053d8a851e
commit 62a7e94e19
14 changed files with 432 additions and 0 deletions
@@ -0,0 +1,50 @@
+using Avalonia;
+using Avalonia.Metadata;
+using Toolkit.UI.Avalonia;
+
+namespace Toolkit.UI.Avalonia;
+
+public class ConditionalExpression : 
+    AvaloniaObject,
+    ICondition
+{
+    public static readonly StyledProperty<ConditionCollection> ConditionsProperty =
+        AvaloniaProperty.Register<ConditionalExpression, ConditionCollection>(nameof(Conditions));
+
+    public static readonly StyledProperty<ForwardChaining> ForwardChainingProperty =
+        AvaloniaProperty.Register<ConditionalExpression, ForwardChaining>(nameof(ForwardChaining));
+
+    public ConditionalExpression() =>
+        SetValue(ConditionsProperty, []);
+
+    [Content]
+    public ConditionCollection Conditions => 
+        GetValue(ConditionsProperty);
+
+    public ForwardChaining ForwardChaining
+    {
+        get => GetValue(ForwardChainingProperty);
+        set => SetValue(ForwardChainingProperty, value);
+    }
+
+    public bool Evaluate()
+    {
+        bool result = false;
+        foreach (ComparisonCondition operation in this.Conditions)
+        {
+            result = operation.Evaluate();
+
+            if (result == false && ForwardChaining == ForwardChaining.And)
+            {
+                return result;
+            }
+
+            if (result == true && ForwardChaining == ForwardChaining.Or)
+            {
+                return result;
+            }
+        }
+
+        return result;
+    }
+}