56 lines
1.6 KiB
C#
56 lines
1.6 KiB
C#
using Avalonia.Data.Converters;
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using Avalonia.Media;
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace Cowain.Base.Converters;
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public class StringToBrushConverter : IValueConverter
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{
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public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
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{
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if (value is not string colorStr || string.IsNullOrWhiteSpace(colorStr))
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{
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// 默认颜色（透明/黑色）
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return parameter?.ToString() == "Foreground"
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? Brushes.Black
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: Brushes.Transparent;
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}
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try
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{
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// 处理十六进制颜色（#FF0000 或 FF0000）
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if (colorStr.StartsWith("#"))
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{
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return new SolidColorBrush(Color.Parse(colorStr));
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}
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// 处理命名颜色（Red/Green/Blue等）
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else if (Color.TryParse(colorStr, out var color))
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{
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return new SolidColorBrush(color);
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}
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}
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catch
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{
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// 转换失败返回默认色
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return parameter?.ToString() == "Foreground"
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? Brushes.Black
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: Brushes.Transparent;
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}
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// 兜底默认色
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return parameter?.ToString() == "Foreground"
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? Brushes.Black
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: Brushes.Transparent;
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}
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public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
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{
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throw new NotImplementedException();
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}
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}
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