MonoDevelop.VersionControl.Views.EditorCompareWidgetBase.GetDiffPaths C# (CSharp) Method

		Tuple<List<Cairo.Rectangle>, List<Cairo.Rectangle>> GetDiffPaths (List<Hunk> diff, MonoTextEditor editor, Hunk hunk)
		{
			if (!diffCache.ContainsKey (diff))
				diffCache[diff] = new Dictionary<Hunk, Tuple<List<Cairo.Rectangle>, List<Cairo.Rectangle>>> ();
			var pathCache = diffCache[diff];
			
			Tuple<List<Cairo.Rectangle>, List<Cairo.Rectangle>> result;
			if (pathCache.TryGetValue (hunk, out result))
				return result;
			
			var words = BreakTextInWords (editor, hunk.RemoveStart, hunk.Removed);
			var cmpWords = BreakTextInWords (MainEditor, hunk.InsertStart, hunk.Inserted);
			
			var wordDiff = new List<Hunk> (Diff.GetDiff (words.Select (w => editor.GetTextAt (w)).ToArray (),
				cmpWords.Select (w => MainEditor.GetTextAt (w)).ToArray ()));
			
			result = Tuple.Create (CalculateChunkPath (editor, wordDiff, words, true), 
				CalculateChunkPath (MainEditor, wordDiff, cmpWords, false));
			
			pathCache[hunk] = result;
			return result;
		}