更新

WPFDark/Controls/BiaToggleButton.xaml.cs

@@ -0,0 +1,127 @@
+using System;
+using System.Windows;
+
+namespace WPFDark.Controls
+{
+    public enum BiaToggleButtonBehavior
+    {
+        Normal,
+        RadioButton
+    }
+
+    public class BiaToggleButton : BiaButton
+    {
+        #region IsChecked
+
+        public bool IsChecked
+        {
+            get => _IsChecked;
+            set
+            {
+                if (value != _IsChecked)
+                    SetValue(IsCheckedProperty, value);
+            }
+        }
+
+        private bool _IsChecked;
+
+        public static readonly DependencyProperty IsCheckedProperty =
+            DependencyProperty.Register(nameof(IsChecked), typeof(bool), typeof(BiaToggleButton),
+                new FrameworkPropertyMetadata(
+                    false,
+                    FrameworkPropertyMetadataOptions.BindsTwoWayByDefault |
+                    FrameworkPropertyMetadataOptions.AffectsRender |
+                    FrameworkPropertyMetadataOptions.SubPropertiesDoNotAffectRender,
+                    (s, e) =>
+                    {
+                        var self = (BiaToggleButton) s;
+                        self._IsChecked = (bool) e.NewValue;
+                    })
+                {
+                    BindsTwoWayByDefault = true
+                }
+            );
+
+        #endregion
+
+        #region Behavior
+
+        public BiaToggleButtonBehavior Behavior
+        {
+            get => _Behavior;
+            set
+            {
+                if (value != _Behavior)
+                    SetValue(BehaviorProperty, value);
+            }
+        }
+
+        private BiaToggleButtonBehavior _Behavior = BiaToggleButtonBehavior.Normal;
+
+        public static readonly DependencyProperty BehaviorProperty =
+            DependencyProperty.Register(
+                nameof(Behavior),
+                typeof(BiaToggleButtonBehavior),
+                typeof(BiaToggleButton),
+                new FrameworkPropertyMetadata(
+                    BiaToggleButtonBehavior.Normal,
+                    FrameworkPropertyMetadataOptions.BindsTwoWayByDefault |
+                    FrameworkPropertyMetadataOptions.AffectsRender |
+                    FrameworkPropertyMetadataOptions.SubPropertiesDoNotAffectRender,
+                    (s, e) =>
+                    {
+                        var self = (BiaToggleButton) s;
+                        self._Behavior = (BiaToggleButtonBehavior) e.NewValue;
+                    }));
+
+        #endregion
+
+        static BiaToggleButton()
+        {
+            DefaultStyleKeyProperty.OverrideMetadata(typeof(BiaToggleButton),
+                new FrameworkPropertyMetadata(typeof(BiaToggleButton)));
+        }
+
+        protected override void Clicked()
+        {
+            switch (Behavior)
+            {
+                case BiaToggleButtonBehavior.Normal:
+                    IsChecked = !IsChecked;
+                    base.InvokeClicked();
+
+                    break;
+
+                case BiaToggleButtonBehavior.RadioButton:
+                    if (IsChecked)
+                        return;
+
+                    IsChecked = true;
+
+                    base.InvokeClicked();
+
+                    if (IsChecked)
+                        UpdateSibling();
+
+                    break;
+
+                default:
+                    throw new ArgumentOutOfRangeException();
+            }
+        }
+
+        private void UpdateSibling()
+        {
+            var parent = Parent;
+            if (parent is null)
+                return;
+
+            foreach (var child in LogicalTreeHelper.GetChildren(parent))
+            {
+                if (child is BiaToggleButton toggleButton &&
+                    toggleButton != this)
+                    toggleButton.IsChecked = false;
+            }
+        }
+    }
+}