protected override void OnTextChanged(EventArgs e)
{
if (_highlighting)
{
return;
}
_highlightTimer.Change(Delay, int.MaxValue);
HideAutoCompleteForm();
_visitor.Clear();
if (!string.IsNullOrEmpty(Text))
{
var nodes = _parser.Parse(Text);
_visitor.Visit(nodes);
}
base.OnTextChanged(e);
if (!_isUndo)
{
_redoStack.Clear();
_undoList.Insert(0, _lastInfo);
UpdateUndoLimit();
_lastInfo = UndoRedoInfo.Create(this);
}
if (CanAutoComplete(true))
{
ShowAutoComplete();
}
}
private void SuspendPainting()
{
if (_paintSuspended)
{
return;
}
_painSuspendedInfo = UndoRedoInfo.Create(this);
SendMessage(Handle, WM_SETREDRAW, 0, IntPtr.Zero);
_eventMask = SendMessage(Handle, EM_GETEVENTMASK, 0, IntPtr.Zero);
_paintSuspended = true;
}
public new void Redo()
{
if (!CanRedo)
{
return;
}
_isUndo = true;
_undoList.Insert(0, UndoRedoInfo.Create(this));
UpdateUndoLimit();
UndoRedoInfo info = _redoStack.Pop();
info.Restore(this, true);
_isUndo = false;
}
public new void Undo()
{
if (!CanUndo)
{
return;
}
_isUndo = true;
_redoStack.Push(UndoRedoInfo.Create(this));
UndoRedoInfo info = _undoList[0];
_undoList.RemoveAt(0);
info.Restore(this, true);
_lastInfo = info;
_isUndo = false;
}
