/// ------------------------------------------------------------------------------------
/// <summary>
/// Reverses (or "un-does") an action.
/// </summary>
/// <param name="fRefreshPending">Ignored</param>
/// ------------------------------------------------------------------------------------
public override bool Undo(bool fRefreshPending)
{
m_reviewedList.Remove(m_differenceRef);
m_differenceList.Insert(m_index, m_differenceClone);
// move to the difference that was just inserted
System.Diagnostics.Debug.Assert(m_index < m_differenceList.Count);
m_differenceList.CurrentDifferenceIndex = m_index;
// Only adjust following diff details if it was actually reverted and the current diff
// type is not a para style change. For a para style change, the text of the paragraph
// doesn't change, so we shouldn't adjust anything (TE-6336).
if (m_fReverted && (m_differenceClone.DiffType != DifferenceType.ParagraphStyleDifference))
{
int offset = (m_differenceClone.IchLimCurr - m_differenceClone.IchMinCurr) -
(m_differenceClone.IchLimRev - m_differenceClone.IchMinRev);
m_differenceList.AdjustFollowingDiffsForUndo(m_index, m_differenceClone.HvoCurr, offset);
}
return(true);
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// Re-applies (or "re-does") an action.
/// </summary>
/// <param name="fRefreshPending">Ignored</param>
/// ------------------------------------------------------------------------------------
public override bool Redo(bool fRefreshPending)
{
if (m_fReverted)
{
int offset = (m_differenceClone.IchLimRev - m_differenceClone.IchMinRev) -
(m_differenceClone.IchLimCurr - m_differenceClone.IchMinCurr);
m_differenceList.AdjustFollowingDiffsForUndo(m_index, m_differenceClone.HvoCurr, offset);
}
m_differenceList.Remove(m_differenceClone);
m_reviewedList.Add(m_differenceClone);
m_differenceRef = m_differenceClone;
// This moves to the difference immediately following the difference that was just
// removed from the list. This may not be the final design. But, until further
// customer comments, this will just have to be.
if (m_index < m_differenceList.Count)
{
m_differenceList.CurrentDifferenceIndex = m_index;
}
return(true);
}
