62 lines
2.0 KiB
C#
62 lines
2.0 KiB
C#
using System;
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using System.Globalization;
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using System.Text.RegularExpressions;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Data;
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using System.Windows.Documents;
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using System.Windows.Media;
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namespace AntdWpf.Converters
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{
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public class StringToMarkDownConverter : IValueConverter
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{
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private static StringToMarkDownConverter instance;
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// Explicit static constructor to tell C# compiler
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// not to mark type as beforefieldinit
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static StringToMarkDownConverter() { }
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private StringToMarkDownConverter() { }
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public static StringToMarkDownConverter Instance
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{
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get { return instance ?? (instance = new StringToMarkDownConverter()); }
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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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var str = value as string;
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var textBlock = new TextBlock() { TextWrapping = TextWrapping.Wrap };
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if (!string.IsNullOrEmpty(str))
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{
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string pattern = @"`(.*?)`";
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int index = 0;
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var inlines = textBlock.Inlines;
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str = str.Replace(@"\n", Environment.NewLine);
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var foreground = new SolidColorBrush(Color.FromRgb(31, 46, 59));
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var background = new SolidColorBrush(Color.FromRgb(242, 244, 245));
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foreach (Match match in Regex.Matches(str, pattern))
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{
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inlines.Add(str.Substring(index, match.Index - index));
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inlines.Add(new Run(match.Value.Replace('`',' ')) { Foreground = foreground, Background = background });
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index = match.Index + match.Length;
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}
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inlines.Add(str.Substring(index));
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}
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return textBlock;
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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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return DependencyProperty.UnsetValue;
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}
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}
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}
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