public DiffRenderer(string oldText, string newText, int maxContextLines = 3, int tabWidth = 8)
{
this.maxContextLines = maxContextLines;
var inlineBuilder = new InlineDiffBuilder(new Differ());
var diff = inlineBuilder.BuildDiffModel(oldText, newText);
int maxLineNumber = 0;
DiffPieceGroup currentGroup = null;
foreach (var line in diff.Lines)
{
if (currentGroup == null || currentGroup.Type != line.Type)
{
currentGroup = new DiffPieceGroup(currentGroup, line.Type);
if (FirstGroup == null)
{
FirstGroup = currentGroup;
}
}
if (line.Position != null)
{
maxLineNumber = Math.Max(maxLineNumber, line.Position.Value);
}
maxLineWidth = Math.Max(maxLineWidth, GetLineWidth(line.Text, tabWidth));
currentGroup.Lines.Add(line);
}
maxLineNumberDigits = (int)Math.Floor(Math.Log10(maxLineNumber) + 1);
}
public DiffPieceGroup(DiffPieceGroup previous, ChangeType type)
{
Previous = previous;
if (previous != null)
{
previous.Next = this;
}
Lines = new List <DiffPiece> ();
Type = type;
}