Tuple <List <Cairo.Rectangle>, List <Cairo.Rectangle> > GetDiffPaths(List <Mono.TextEditor.Utils.Hunk> diff, TextEditor 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);
}