77 lines
2.5 KiB
C#
77 lines
2.5 KiB
C#
|
using System;
|
||
|
|
using UnityEngine;
|
||
|
|
using UnityEngine.Timeline;
|
||
|
|
using UnityEngine.Playables;
|
||
|
|
|
||
|
|
namespace UnityEngine.Timeline
|
||
|
|
{
|
||
|
|
/// <summary>
|
||
|
|
/// Extension methods for TrackAssets
|
||
|
|
/// </summary>
|
||
|
|
public static class TrackAssetExtensions
|
||
|
|
{
|
||
|
|
/// <summary>
|
||
|
|
/// Gets the GroupTrack this track belongs to.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="asset">The track asset to find the group of</param>
|
||
|
|
/// <returns>The parent GroupTrack or null if the Track is an override track, or root track.</returns>
|
||
|
|
public static GroupTrack GetGroup(this TrackAsset asset)
|
||
|
|
{
|
||
|
|
if (asset == null)
|
||
|
|
return null;
|
||
|
|
|
||
|
|
return asset.parent as GroupTrack;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Assigns the track to the specified group track.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="asset">The track to assign.</param>
|
||
|
|
/// <param name="group">The GroupTrack to assign the track to.</param>
|
||
|
|
/// <remarks>
|
||
|
|
/// Does not support assigning to a group in a different timeline.
|
||
|
|
/// </remarks>
|
||
|
|
public static void SetGroup(this TrackAsset asset, GroupTrack group)
|
||
|
|
{
|
||
|
|
const string undoString = "Reparent";
|
||
|
|
|
||
|
|
if (asset == null || asset == group || asset.parent == group)
|
||
|
|
return;
|
||
|
|
|
||
|
|
if (group != null && asset.timelineAsset != group.timelineAsset)
|
||
|
|
throw new InvalidOperationException("Cannot assign to a group in a different timeline");
|
||
|
|
|
||
|
|
|
||
|
|
TimelineUndo.PushUndo(asset, undoString);
|
||
|
|
|
||
|
|
var timeline = asset.timelineAsset;
|
||
|
|
var parentTrack = asset.parent as TrackAsset;
|
||
|
|
var parentTimeline = asset.parent as TimelineAsset;
|
||
|
|
if (parentTrack != null || parentTimeline != null)
|
||
|
|
{
|
||
|
|
TimelineUndo.PushUndo(asset.parent, undoString);
|
||
|
|
if (parentTimeline != null)
|
||
|
|
{
|
||
|
|
parentTimeline.RemoveTrack(asset);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
parentTrack.RemoveSubTrack(asset);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (group == null)
|
||
|
|
{
|
||
|
|
TimelineUndo.PushUndo(timeline, undoString);
|
||
|
|
asset.parent = asset.timelineAsset;
|
||
|
|
timeline.AddTrackInternal(asset);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
TimelineUndo.PushUndo(group, undoString);
|
||
|
|
group.AddChild(asset);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|