public virtual void ShiftTracks(int delta, GuiLabs.Undo.ActionManager am = null)
{
var oldIndices = Tracks.Select(t => t.GetIndex()).ToList();
var newIndices = oldIndices.Select(i => i + delta).ToList();
if (newIndices.Any(i => i < 0 || i >= timeline.Tracks.Count))
{
throw new ArgumentException("shifting tracks would move them out of range", "delta");
}
// runtime complexity is horrendeous, but we don't have that many tracks ...
foreach (int i in newIndices)
{
if (!oldIndices.Contains(i))
{
am.RecordAdd(Tracks, timeline.Tracks[i]);
}
}
foreach (int i in oldIndices)
{
if (!newIndices.Contains(i))
{
am.RecordRemove(Tracks, timeline.Tracks[i]);
}
}
}
public override void ExtendToTrack(Track fromTrack, Track toTrack, GuiLabs.Undo.ActionManager am = null)
{
foreach (var child in _children.Where(b => b.Tracks.Contains(fromTrack)))
{
am.RecordAdd(child.Tracks, toTrack);
}
RecalcTracks();
}
public virtual void ExtendToTrack(Track fromTrack, Track toTrack, GuiLabs.Undo.ActionManager am = null)
{
if (Tracks.Contains(toTrack))
{
throw new InvalidOperationException("block is already part of track");
}
//Tracks.Add(toTrack);
am.RecordAdd(Tracks, toTrack);
}