SparkClient/Views/Configuration/SettingPages/ModelColorSetPage.xaml.cs

using System.ComponentModel;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Media;
using HandyControl.Controls;
using HandyControl.Tools;

namespace SparkClient.Views.Configuration.SettingPages;

public partial class ModelColorSetPage
{
    public ModelColorSetPage()
    {
        InitializeComponent();
    }

    private void LabelsColor_OnMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
    {
        if (sender is Label label)
        {
            var picker = SingleOpenHelper.CreateControl<ColorPicker>();
            var window = new PopupWindow
            {
                PopupElement = picker
            };
            picker.SelectedBrush = new SolidColorBrush((Color)ColorConverter.ConvertFromString((label.Content??"#FFFFFF").ToString()));
            picker.Canceled += delegate { window.Close(); };
            picker.Confirmed += delegate
            {
                label.Background = picker.SelectedBrush;
                label.Foreground = picker.SelectedBrush;
                label.Content = picker.SelectedBrush.ToString();
            
                window.Close();
            };
            window.Show(label, false);
        }
    }
    
    public SolidColorBrush GetInverseBrush(SolidColorBrush selectedBrush)
    {
        Color originalColor = selectedBrush.Color;
        Color inverseColor = Color.FromRgb((byte)(255 - originalColor.R), 
            (byte)(255 - originalColor.G), 
            (byte)(255 - originalColor.B));
        return new SolidColorBrush(inverseColor);
    }
    
    private void Label_ContentChanged(object sender, RoutedEventArgs e)
    {
        if (e.Source is Label label)
        {
            var newContent = label.Content?.ToString();
            // 在这里处理 Content 变化后的逻辑
            // 例如：
            label.Background = new SolidColorBrush((Color)ColorConverter.ConvertFromString(newContent));
#if DEBUG
            label.Foreground = GetInverseBrush(new SolidColorBrush((Color)ColorConverter.ConvertFromString(newContent)));
#else
            label.Foreground = new SolidColorBrush(Colors.Transparent);
#endif
        }
    }


}

public static class LabelContentChangedBehavior
    {
        public static readonly DependencyProperty EnableContentChangedProperty =
            DependencyProperty.RegisterAttached(
                "EnableContentChanged",
                typeof(bool),
                typeof(LabelContentChangedBehavior),
                new PropertyMetadata(false, OnEnableContentChangedChanged));

        // 定义一个附加事件
        public static readonly RoutedEvent ContentChangedEvent =
            EventManager.RegisterRoutedEvent(
                "ContentChanged",
                RoutingStrategy.Bubble,
                typeof(RoutedEventHandler),
                typeof(LabelContentChangedBehavior));

        // 添加和移除事件的附加方法
        public static void AddContentChangedHandler(DependencyObject d, RoutedEventHandler handler)
        {
            if (d is UIElement uiElement)
            {
                uiElement.AddHandler(ContentChangedEvent, handler);
            }
        }

        public static void RemoveContentChangedHandler(DependencyObject d, RoutedEventHandler handler)
        {
            if (d is UIElement uiElement)
            {
                uiElement.RemoveHandler(ContentChangedEvent, handler);
            }
        }

        public static bool GetEnableContentChanged(DependencyObject obj)
        {
            return (bool)obj.GetValue(EnableContentChangedProperty);
        }

        public static void SetEnableContentChanged(DependencyObject obj, bool value)
        {
            obj.SetValue(EnableContentChangedProperty, value);
        }

        private static void OnEnableContentChangedChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            if (d is Label label)
            {
                if ((bool)e.NewValue)
                {
                    DependencyPropertyDescriptor dpd = DependencyPropertyDescriptor.FromProperty(
                        Label.ContentProperty, typeof(Label));

                    if (dpd != null)
                    {
                        dpd.AddValueChanged(label, OnLabelContentChanged);
                    }
                }
                else
                {
                    DependencyPropertyDescriptor dpd = DependencyPropertyDescriptor.FromProperty(
                        Label.ContentProperty, typeof(Label));

                    if (dpd != null)
                    {
                        dpd.RemoveValueChanged(label, OnLabelContentChanged);
                    }
                }
            }
        }

        private static void OnLabelContentChanged(object sender, EventArgs e)
        {
            if (sender is Label label)
            {
                var newContent = label.Content?.ToString();
                // 创建一个新的 RoutedEventArgs，并设置源为当前 Label
                RoutedEventArgs args = new RoutedEventArgs(ContentChangedEvent, label);
                label.RaiseEvent(args);
            }
        }
    }