void ReloadDocument(TextDocument document, string newContent)
{
var diff = new MyersDiffAlgorithm(new StringSequence(document.Text), new StringSequence(newContent));
document.Replace(0, document.TextLength, newContent, diff.GetEdits().ToOffsetChangeMap());
document.UndoStack.ClearAll();
}
void SetupInitialFileState(bool update)
{
if (baseDocument == null)
{
if (update)
{
changeList.Transform(TransformLineChangeInfo);
}
else
{
changeList.InsertRange(0, document.LineCount + 1, LineChangeInfo.EMPTY);
}
}
else
{
changeList.Clear();
Dictionary <string, int> hashes = new Dictionary <string, int>();
MyersDiffAlgorithm diff = new MyersDiffAlgorithm(
new DocumentSequence(baseDocument, hashes),
new DocumentSequence(document, hashes)
);
changeList.Add(LineChangeInfo.EMPTY);
int lastEndLine = 0;
foreach (Edit edit in diff.GetEdits())
{
int beginLine = edit.BeginB;
int endLine = edit.EndB;
changeList.InsertRange(changeList.Count, beginLine - lastEndLine, LineChangeInfo.EMPTY);
if (endLine == beginLine)
{
changeList[changeList.Count - 1] = new LineChangeInfo(edit.EditType, edit.BeginA, edit.EndA);
}
else
{
changeList.InsertRange(changeList.Count, endLine - beginLine, new LineChangeInfo(edit.EditType, edit.BeginA, edit.EndA));
}
lastEndLine = endLine;
}
changeList.InsertRange(changeList.Count, textDocument.LineCount - lastEndLine, LineChangeInfo.EMPTY);
}
OnChangeOccurred(EventArgs.Empty);
}
void ReloadDocument(TextDocument document, string newContent)
{
var diff = new MyersDiffAlgorithm(new StringSequence(document.Text), new StringSequence(newContent));
document.Replace(0, document.TextLength, newContent, diff.GetEdits().ToOffsetChangeMap());
if (this.ClearUndoStackOnSwitch || documentFirstLoad)
{
document.UndoStack.ClearAll();
}
if (documentFirstLoad)
{
documentFirstLoad = false;
}
}
public string ToString(int contextLines)
{
if (contextLines < 0)
{
contextLines = 2;
}
StringBuilder sb = new StringBuilder();
sb.AppendLine();
foreach (var e in _ma.GetEdits())
{
if (e.EditType == ChangeType.None)
{
continue;
}
sb.AppendFormat("@@@ -{0},{1} +{2},{3}",
1 + Math.Max(0, e.BeginA - contextLines),
1 + Math.Min(_b.Size(), e.EndA + contextLines),
1 + Math.Max(0, e.BeginB - contextLines),
1 + Math.Min(_b.Size(), e.EndB + contextLines));
sb.AppendLine();
AppendLines(sb, " ", _a.EnumerateLines(e.BeginA - contextLines, e.BeginA));
if (e.EditType == ChangeType.Modified)
{
AppendLines(sb, "-", _a.EnumerateLines(e.BeginA, e.EndA));
AppendLines(sb, "+", _b.EnumerateLines(e.BeginB, e.EndB));
continue;
}
else if (e.EditType == ChangeType.Added)
{
AppendLines(sb, "+", _b.EnumerateLines(e.BeginB, e.EndB));
}
else if (e.EditType == ChangeType.Deleted)
{
AppendLines(sb, "-", _b.EnumerateLines(e.BeginA, e.EndA));
}
AppendLines(sb, " ", _a.EnumerateLines(e.EndA + 1, e.EndA + contextLines));
}
return(sb.ToString());
}