MarkerModifier.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using UnityEngine.Timeline;
using Object = UnityEngine.Object;
namespace UnityEditor.Timeline
{
static class MarkerModifier
{
public static void DeleteMarker(IMarker marker)
{
var trackAsset = marker.parent;
if (trackAsset != null)
{
SelectionManager.Remove(marker);
trackAsset.DeleteMarker(marker);
}
}
public static IEnumerable<IMarker> CloneMarkersToParent(IEnumerable<IMarker> markers, TrackAsset parent)
{
if (!markers.Any()) return Enumerable.Empty<IMarker>();
var clonedMarkers = new List<IMarker>();
foreach (var marker in markers)
clonedMarkers.Add(CloneMarkerToParent(marker, parent));
return clonedMarkers;
}
public static IMarker CloneMarkerToParent(IMarker marker, TrackAsset parent)
{
var markerObject = marker as ScriptableObject;
if (markerObject == null) return null;
var newMarkerObject = Object.Instantiate(markerObject);
AddMarkerToParent(newMarkerObject, parent);
newMarkerObject.name = markerObject.name;
try
{
CustomTimelineEditorCache.GetMarkerEditor((IMarker)newMarkerObject).OnCreate((IMarker)newMarkerObject, marker);
}
catch (Exception e)
{
Debug.LogException(e);
}
return (IMarker)newMarkerObject;
}
static void AddMarkerToParent(ScriptableObject marker, TrackAsset parent)
{
TimelineCreateUtilities.SaveAssetIntoObject(marker, parent);
TimelineUndo.RegisterCreatedObjectUndo(marker, "Duplicate Marker");
UndoExtensions.RegisterTrack(parent, "Duplicate Marker");
if (parent != null)
{
parent.AddMarker(marker);
((IMarker)marker).Initialize(parent);
}
}
}
}