ICSharpCode.TextEditor 是一款非常不错的.NET代码编辑控件,内置了多种高亮语言支持,同时完美支持中文,非常赞!先来看一下运行效果:
1 项目结构
这里需要注意lib文件夹下导入的类库,这个Demo需要这些dll.
2 代码折叠
需要实现IFoldingStrategy中的 GenerateFoldMarkers 方法,代码如下:
using ICSharpCode.TextEditor.Document;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace JackWangCUMT.WinForm
{
///
/// The class to generate the foldings, it implements ICSharpCode.TextEditor.Document.IFoldingStrategy
///
public class MingFolding : IFoldingStrategy
{
///
/// Generates the foldings for our document.
///
/// The current document.
/// The filename of the document.
/// Extra parse information, not used in this sample.
/// A list of FoldMarkers.
public List GenerateFoldMarkers(IDocument document, string fileName, object parseInformation)
{
List list = new List();
//stack 先进先出
var startLines = new Stack();
// Create foldmarkers for the whole document, enumerate through every line.
for (int i = 0; i < document.TotalNumberOfLines; i++)
{
// Get the text of current line.
string text = document.GetText(document.GetLineSegment(i));
if (text.Trim().StartsWith("#region")) // Look for method starts
{
startLines.Push(i);
}
if (text.Trim().StartsWith("#endregion")) // Look for method endings
{
int start = startLines.Pop();
// Add a new FoldMarker to the list.
// document = the current document
// start = the start line for the FoldMarker
// document.GetLineSegment(start).Length = the ending of the current line = the start column of our foldmarker.
// i = The current line = end line of the FoldMarker.
// 7 = The end column
list.Add(new FoldMarker(document, start, document.GetLineSegment(start).Length, i, 57, FoldType.Region, "..."));
}
//支持嵌套 {}
if (text.Trim().StartsWith("{")) // Look for method starts
{
startLines.Push(i);
}
if (text.Trim().StartsWith("}")) // Look for method endings
{
if (startLines.Count > 0)
{
int start = startLines.Pop();
list.Add(new FoldMarker(document, start, document.GetLineSegment(start).Length, i, 57, FoldType.TypeBody, "...}"));
}
}
// ///
if (text.Trim().StartsWith("/// ")) // Look for method starts
{
startLines.Push(i);
}
if (text.Trim().StartsWith("/// ")) // Look for method endings
{
int start = startLines.Pop();
//获取注释文本(包括空格)
string display = document.GetText(document.GetLineSegment(start + 1).Offset, document.GetLineSegment(start + 1).Length);
//remove ///
display = display.Trim().TrimStart('/');
list.Add(new FoldMarker(document, start, document.GetLineSegment(start).Length, i, 57, FoldType.TypeBody, display));
}
}
return list;
}
}
}
3 高亮配置
拷贝CSharp-Mode.xshd为 JackCSharp-Mode.xshd ,将其中的名字修改为: SyntaxDefinition name = "JackC#",并添加高亮关键字,如下:
这样代码中出现的JackWang就会高亮。下面的代码片段将自定义高亮文件进行加载,并用SetHighlighting进行设置,这里一定注意目录下必须有xshd的配置文件,否则高亮将失效。
textEditor.Encoding = System.Text.Encoding.UTF8;
textEditor.Font = new Font("Hack",12);
textEditor.Document.FoldingManager.FoldingStrategy = new JackWangCUMT.WinForm.MingFolding();
textEditor.Text = sampleCode;
//自定义代码高亮
string path = Application.StartupPath+ "\\HighLighting";
FileSyntaxModeProvider fsmp;
if (Directory.Exists(path))
{
fsmp = new FileSyntaxModeProvider(path);
HighlightingManager.Manager.AddSyntaxModeFileProvider(fsmp);
textEditor.SetHighlighting("JackC#");
}
为了保持代码适时进行折叠,这里监听文本变化,如下所示:
private void TextEditor_TextChanged(object sender, EventArgs e)
{
//更新,以便进行代码折叠
textEditor.Document.FoldingManager.UpdateFoldings(null, null);
}
最后说明的是,我们可以定义一个格式化代码的类,来格式化C#代码: