78 lines
2.0 KiB
C#
78 lines
2.0 KiB
C#
using System.Collections.Generic;
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using System.Linq;
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using System.Windows;
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using System.Windows.Controls.Primitives;
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namespace WPFluent.Controls.Primitives;
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public class ToggleButtonGroup : List<ToggleButton>
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{
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public bool IsCanCancel { get; set; } = false;
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public static ToggleButtonGroup GetGroup(DependencyObject obj)
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{
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return (ToggleButtonGroup)obj.GetValue(GroupProperty);
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}
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public static void SetGroup(DependencyObject obj, ToggleButtonGroup value)
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{
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obj.SetValue(GroupProperty, value);
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}
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public static readonly DependencyProperty GroupProperty =
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DependencyProperty.RegisterAttached("Group", typeof(ToggleButtonGroup), typeof(ToggleButtonGroup), new PropertyMetadata(null!, OnGroupChanged));
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private static void OnGroupChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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if (d is ToggleButton tb)
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{
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((ToggleButtonGroup)e.NewValue).Join(tb);
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}
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}
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protected bool Handling { get; set; } = false;
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public ToggleButtonGroup JoinWith(ToggleButton toggleButton)
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{
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Join(toggleButton);
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return this;
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}
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public void Join(ToggleButton toggleButton)
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{
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Add(toggleButton);
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toggleButton.Checked += (s, e) =>
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{
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if (s is ToggleButton cb && GetGroup(cb) is ToggleButtonGroup group)
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{
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Handling = true;
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foreach (var tb in group)
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{
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if (tb != cb)
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{
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tb.IsChecked = false;
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}
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}
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Handling = false;
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}
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};
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toggleButton.Unchecked += (s, e) =>
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{
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if (!IsCanCancel && !Handling && s is ToggleButton cb)
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{
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cb.IsChecked = true;
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}
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};
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SetGroup(toggleButton, this);
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}
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public void Unjoin(ToggleButton checkBox)
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{
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Remove(checkBox);
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SetGroup(checkBox, null!);
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}
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public static ToggleButtonGroup New() => [];
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}
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