/// <summary>
/// Create an <see cref="T:Northwoods.Go.IGoUndoableEdit" /> for a <see cref="T:Northwoods.Go.GoDocument" /> Changed event.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
/// <remarks>
/// This calls <see cref="M:Northwoods.Go.GoUndoManager.SkipEvent(Northwoods.Go.GoChangedEventArgs)" /> if for some reason we should ignore
/// the <paramref name="e" />.
/// This then creates a <see cref="T:Northwoods.Go.GoChangedEventArgs" /> and adds it to the
/// <see cref="P:Northwoods.Go.GoUndoManager.CurrentEdit" />, a <see cref="T:Northwoods.Go.GoUndoManagerCompoundEdit" /> which it allocates
/// if needed.
/// This method always ignores all Changed events while we are performing an
/// <see cref="M:Northwoods.Go.GoUndoManager.Undo" /> or <see cref="M:Northwoods.Go.GoUndoManager.Redo" />.
/// </remarks>
public virtual void DocumentChanged(object sender, GoChangedEventArgs e)
{
if (!IsUndoing && !IsRedoing && !SkipEvent(e))
{
GoUndoManagerCompoundEdit goUndoManagerCompoundEdit = CurrentEdit;
if (goUndoManagerCompoundEdit == null || goUndoManagerCompoundEdit.IsComplete)
{
goUndoManagerCompoundEdit = (CurrentEdit = new GoUndoManagerCompoundEdit());
}
GoChangedEventArgs goChangedEventArgs = new GoChangedEventArgs(e);
goUndoManagerCompoundEdit.AddEdit(goChangedEventArgs);
if (ChecksTransactionLevel && TransactionLevel <= 0)
{
GoObject.Trace("Change not within a transaction: " + goChangedEventArgs.ToString());
}
}
}
