ICSharpCode.TextEditor.GutterMargin.Paint C# (CSharp) Method

		public override void Paint(Graphics g, Rectangle rect)
		{
			if (rect.Width <= 0 || rect.Height <= 0) {
				return;
			}
			HighlightColor lineNumberPainterColor = textArea.Document.HighlightingStrategy.GetColorFor("LineNumbers");
			int fontHeight = textArea.TextView.FontHeight;
			Brush fillBrush = textArea.Enabled ? BrushRegistry.GetBrush(lineNumberPainterColor.BackgroundColor) : SystemBrushes.InactiveBorder;
			Brush drawBrush = BrushRegistry.GetBrush(lineNumberPainterColor.Color);
			for (int y = 0; y < (DrawingPosition.Height + textArea.TextView.VisibleLineDrawingRemainder) / fontHeight + 1; ++y) {
				int ypos = drawingPosition.Y + fontHeight * y  - textArea.TextView.VisibleLineDrawingRemainder;
				Rectangle backgroundRectangle = new Rectangle(drawingPosition.X, ypos, drawingPosition.Width, fontHeight);
				if (rect.IntersectsWith(backgroundRectangle)) {
					g.FillRectangle(fillBrush, backgroundRectangle);
					int curLine = textArea.Document.GetFirstLogicalLine(textArea.Document.GetVisibleLine(textArea.TextView.FirstVisibleLine) + y);
					
					if (curLine < textArea.Document.TotalNumberOfLines) {
						g.DrawString((curLine + 1).ToString(),
						             lineNumberPainterColor.GetFont(TextEditorProperties.FontContainer),
						             drawBrush,
						             backgroundRectangle,
						             numberStringFormat);
					}
				}
			}
		}