68 lines
2.2 KiB
C#
68 lines
2.2 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 StringToCodeConverter : IValueConverter
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{
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private static StringToCodeConverter 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 StringToCodeConverter() { }
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private StringToCodeConverter() { }
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public static StringToCodeConverter Instance
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{
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get { return instance ?? (instance = new StringToCodeConverter()); }
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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 textBox = new RichTextBox() {
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IsReadOnly = true,
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FontSize = 12,
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Foreground = Brushes.Red,
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BorderThickness = new Thickness(0),
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};
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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 document = new FlowDocument();
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var paragraph = new Paragraph();
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var inlines = paragraph.Inlines;
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str = str.Replace(@"\n", Environment.NewLine).Replace(@"\t", "\t");
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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) { Foreground = Brushes.Blue });
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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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document.Blocks.Add(paragraph);
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textBox.Document = document;
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}
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return textBox;
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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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