public override void Undo()
{
foreach (var item in Positions)
{
TargetList.Insert(item.Key, item.Value);
}
}
public override void Do()
{
if (InsertIndex.Equals(-1))
{
foreach (var lyric in Items)
{
if (!IsReverseAdd)
{
TargetList.Add(lyric);
}
else
{
TargetList.Insert(0, lyric);
}
}
return;
}
foreach (var lyric in Items)
{
if (!IsReverseAdd)
{
TargetList.Insert(InsertIndex + 1, lyric);
}
else
{
TargetList.Insert(InsertIndex, lyric);
}
}
}
private void ItemSort(Lyric sourceLyric)
{
int id = TargetList.IndexOf(sourceLyric);
bool isMove = false;
for (int i = id; i > 0; i--)
{
Lyric beforeLyric = TargetList[i - 1];
Lyric currentLyric = TargetList[i];
if (currentLyric != sourceLyric)
{
break;
}
if (currentLyric.CompareTo(beforeLyric) < 0)
{
TargetList.Insert(i + 1, beforeLyric);
TargetList.Remove(beforeLyric);
isMove = true;
}
}
if (!_isInvoked && isMove && !_changedList.Contains(sourceLyric))
{
_changedList.Add(sourceLyric);
}
}
public override void Undo()
{
foreach (var item in Positions.Where(d => _changedList.Contains(d.Value)))
{
TargetList.Remove(item.Value);
TargetList.Insert(item.Key, item.Value);
}
}
public override void Do()
{
int insertId = _insertId + 1;
if (_isDoed)
{
foreach (var lyric in _addItems)
{
TargetList.Insert(insertId++, lyric);
}
}
else
{
foreach (var lyric in Positions.Values.OrderBy(l => l).ToList())
{
var time = _isBig ? lyric.Time - _interpolation : lyric.Time + _interpolation;
var addItem = new Lyric(time, lyric.Content);
_addItems.Add(addItem);
TargetList.Insert(insertId++, addItem);
}
}
_isDoed = true;
}
