Mono.TextEditor.TextViewMargin.HandleVAdjustmentValueChanged C# (CSharp) Method

		void HandleVAdjustmentValueChanged (object sender, EventArgs e)
		{
			//We don't want to invalidate 5 lines before start
			int startLine = YToLine (textEditor.GetTextEditorData ().VAdjustment.Value) - 5;
			//We don't want to invalidate 5 lines after end(+10 because start is already -5)
			int endLine = (int)(startLine + textEditor.GetTextEditorData ().VAdjustment.PageSize / LineHeight) + 10;
			List<DocumentLine> linesToRemove = new List<DocumentLine> ();
			foreach (DocumentLine line in layoutDict.Keys) {
				int curLine = line.LineNumber;
				if (startLine >= curLine || endLine <= curLine) {
					linesToRemove.Add (line);
				}
			}
			linesToRemove.ForEach (RemoveCachedLine);
			
			textEditor.RequestResetCaretBlink ();
		}