first commit

2026-01-07 11:33:05 +08:00
commit fc54ffd43b
215 changed files with 31856 additions and 0 deletions
--- a/ICSharpCode.TextEditor/Project/Src/Gui/DrawableLine.cs
+++ b/ICSharpCode.TextEditor/Project/Src/Gui/DrawableLine.cs
@@ -0,0 +1,190 @@
+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <owner name="Daniel Grunwald" email="daniel@danielgrunwald.de"/>
+//     <version>$Revision$</version>
+// </file>
+
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+
+using ICSharpCode.TextEditor.Document;
+
+namespace ICSharpCode.TextEditor
+{
+	/// <summary>
+	/// A class that is able to draw a line on any control (outside the text editor)
+	/// </summary>
+	public class DrawableLine
+	{
+		static StringFormat sf = (StringFormat)System.Drawing.StringFormat.GenericTypographic.Clone();
+		
+		List<SimpleTextWord> words = new List<SimpleTextWord>();
+		SizeF spaceSize;
+		Font monospacedFont;
+		Font boldMonospacedFont;
+		
+		private class SimpleTextWord {
+			internal TextWordType Type;
+			internal string       Word;
+			internal bool         Bold;
+			internal Color        Color;
+			
+			public SimpleTextWord(TextWordType Type, string Word, bool Bold, Color Color)
+			{
+				this.Type = Type;
+				this.Word = Word;
+				this.Bold = Bold;
+				this.Color = Color;
+			}
+			
+			internal readonly static SimpleTextWord Space = new SimpleTextWord(TextWordType.Space, " ", false, Color.Black);
+			internal readonly static SimpleTextWord Tab = new SimpleTextWord(TextWordType.Tab, "\t", false, Color.Black);
+		}
+		
+		public DrawableLine(IDocument document, LineSegment line, Font monospacedFont, Font boldMonospacedFont)
+		{
+			this.monospacedFont = monospacedFont;
+			this.boldMonospacedFont = boldMonospacedFont;
+			if (line.Words != null) {
+				foreach (TextWord word in line.Words) {
+					if (word.Type == TextWordType.Space) {
+						words.Add(SimpleTextWord.Space);
+					} else if (word.Type == TextWordType.Tab) {
+						words.Add(SimpleTextWord.Tab);
+					} else {
+						words.Add(new SimpleTextWord(TextWordType.Word, word.Word, word.Bold, word.Color));
+					}
+				}
+			} else {
+				words.Add(new SimpleTextWord(TextWordType.Word, document.GetText(line), false, Color.Black));
+			}
+		}
+		
+		public int LineLength {
+			get {
+				int length = 0;
+				foreach (SimpleTextWord word in words) {
+					length += word.Word.Length;
+				}
+				return length;
+			}
+		}
+		
+		public void SetBold(int startIndex, int endIndex, bool bold)
+		{
+			if (startIndex < 0)
+				throw new ArgumentException("startIndex must be >= 0");
+			if (startIndex > endIndex)
+				throw new ArgumentException("startIndex must be <= endIndex");
+			if (startIndex == endIndex) return;
+			int pos = 0;
+			for (int i = 0; i < words.Count; i++) {
+				SimpleTextWord word = words[i];
+				if (pos >= endIndex)
+					break;
+				int wordEnd = pos + word.Word.Length;
+				// 3 possibilities:
+				if (startIndex <= pos && endIndex >= wordEnd) {
+					// word is fully in region:
+					word.Bold = bold;
+				} else if (startIndex <= pos) {
+					// beginning of word is in region
+					int inRegionLength = endIndex - pos;
+					SimpleTextWord newWord = new SimpleTextWord(word.Type, word.Word.Substring(inRegionLength), word.Bold, word.Color);
+					words.Insert(i + 1, newWord);
+					
+					word.Bold = bold;
+					word.Word = word.Word.Substring(0, inRegionLength);
+				} else if (startIndex < wordEnd) {
+					// end of word is in region (or middle of word is in region)
+					int notInRegionLength = startIndex - pos;
+					
+					SimpleTextWord newWord = new SimpleTextWord(word.Type, word.Word.Substring(notInRegionLength), word.Bold, word.Color);
+					// newWord.Bold will be set in the next iteration
+					words.Insert(i + 1, newWord);
+					
+					word.Word = word.Word.Substring(0, notInRegionLength);
+				}
+				pos = wordEnd;
+			}
+		}
+		
+		public static float DrawDocumentWord(Graphics g, string word, PointF position, Font font, Color foreColor)
+		{
+			if (word == null || word.Length == 0) {
+				return 0f;
+			}
+			SizeF wordSize = g.MeasureString(word, font, 32768, sf);
+			
+			g.DrawString(word,
+			             font,
+			             BrushRegistry.GetBrush(foreColor),
+			             position,
+			             sf);
+			return wordSize.Width;
+		}
+		
+		public SizeF GetSpaceSize(Graphics g)
+		{
+			if (spaceSize.IsEmpty) {
+				spaceSize = g.MeasureString("-", boldMonospacedFont,  new PointF(0, 0), sf);
+			}
+			return spaceSize;
+		}
+		
+		public void DrawLine(Graphics g, ref float xPos, float xOffset, float yPos, Color c)
+		{
+			SizeF spaceSize = GetSpaceSize(g);
+			foreach (SimpleTextWord word in words) {
+				switch (word.Type) {
+					case TextWordType.Space:
+						xPos += spaceSize.Width;
+						break;
+					case TextWordType.Tab:
+						float tabWidth = spaceSize.Width * 4;
+						xPos += tabWidth;
+						xPos = (int)((xPos + 2) / tabWidth) * tabWidth;
+						break;
+					case TextWordType.Word:
+						xPos += DrawDocumentWord(g,
+						                         word.Word,
+						                         new PointF(xPos + xOffset, yPos),
+						                         word.Bold ? boldMonospacedFont : monospacedFont,
+						                         c == Color.Empty ? word.Color : c
+						                        );
+						break;
+				}
+			}
+		}
+		
+		public void DrawLine(Graphics g, ref float xPos, float xOffset, float yPos)
+		{
+			DrawLine(g, ref xPos, xOffset, yPos, Color.Empty);
+		}
+		
+		public float MeasureWidth(Graphics g, float xPos)
+		{
+			SizeF spaceSize = GetSpaceSize(g);
+			foreach (SimpleTextWord word in words) {
+				switch (word.Type) {
+					case TextWordType.Space:
+						xPos += spaceSize.Width;
+						break;
+					case TextWordType.Tab:
+						float tabWidth = spaceSize.Width * 4;
+						xPos += tabWidth;
+						xPos = (int)((xPos + 2) / tabWidth) * tabWidth;
+						break;
+					case TextWordType.Word:
+						if (word.Word != null && word.Word.Length > 0) {
+							xPos += g.MeasureString(word.Word, word.Bold ? boldMonospacedFont : monospacedFont, 32768, sf).Width;
+						}
+						break;
+				}
+			}
+			return xPos;
+		}
+	}
+}