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);
}
}
protected LyricsChangeOperationBase(IEnumerable <Lyric> items, IList <Lyric> targetList) : base(targetList)
{
Items = items.ToList();
Positions = new Dictionary <int, Lyric>();
foreach (Lyric lyric in Items.ToList())
{
Positions.Add(TargetList.IndexOf(lyric), lyric);
}
}
