257 lines
8.9 KiB
C#
257 lines
8.9 KiB
C#
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.Playables;
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using UnityEngine.Timeline;
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namespace UnityEditor.Timeline
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{
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/// <summary>
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/// Description of the on-screen area where a clip is drawn
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/// </summary>
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public struct ClipBackgroundRegion
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{
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/// <summary>
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/// The rectangle where the background of the clip is drawn.
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/// </summary>
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/// <remarks>
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/// The rectangle is clipped to the screen. The rectangle does not include clip borders.
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/// </remarks>
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public Rect position { get; private set; }
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/// <summary>
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/// The start time of the region, relative to the clip.
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/// </summary>
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public double startTime { get; private set; }
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/// <summary>
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/// The end time of the region, relative to the clip.
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/// </summary>
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public double endTime { get; private set; }
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="_position"></param>
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/// <param name="_startTime"></param>
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/// <param name="_endTime"></param>
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public ClipBackgroundRegion(Rect _position, double _startTime, double _endTime)
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{
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position = _position;
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startTime = _startTime;
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endTime = _endTime;
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}
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public override bool Equals(object obj)
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{
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if (!(obj is ClipBackgroundRegion))
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return false;
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return Equals((ClipBackgroundRegion)obj);
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}
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public bool Equals(ClipBackgroundRegion other)
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{
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return position.Equals(other.position) &&
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startTime == other.startTime &&
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endTime == other.endTime;
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}
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public override int GetHashCode()
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{
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return HashUtility.CombineHash(
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position.GetHashCode(),
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startTime.GetHashCode(),
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endTime.GetHashCode()
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);
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}
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public static bool operator==(ClipBackgroundRegion region1, ClipBackgroundRegion region2)
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{
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return region1.Equals(region2);
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}
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public static bool operator!=(ClipBackgroundRegion region1, ClipBackgroundRegion region2)
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{
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return !region1.Equals(region2);
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}
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}
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/// <summary>
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/// The user-defined options for drawing a clip.
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/// </summary>
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public struct ClipDrawOptions
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{
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private IEnumerable<Texture2D> m_Icons;
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/// <summary>
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/// Text that indicates if the clip should display an error.
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/// </summary>
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/// <remarks>
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/// If the error text is not empty or null, then the clip displays a warning. The error text is used as the tooltip.
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/// </remarks>
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public string errorText { get; set; }
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/// <summary>
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/// The tooltip to show for the clip.
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/// </summary>
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public string tooltip { get; set; }
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/// <summary>
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/// The color drawn under the clip. By default, the color is the same as the track color.
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/// </summary>
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public Color highlightColor { get; set; }
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/// <summary>
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/// Icons to display on the clip.
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/// </summary>
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public IEnumerable<Texture2D> icons
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{
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get { return m_Icons ?? System.Linq.Enumerable.Empty<Texture2D>(); }
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set { m_Icons = value;}
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}
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public override bool Equals(object obj)
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{
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if (!(obj is ClipDrawOptions))
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return false;
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return Equals((ClipDrawOptions)obj);
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}
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public bool Equals(ClipDrawOptions other)
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{
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return errorText == other.errorText &&
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tooltip == other.tooltip &&
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highlightColor == other.highlightColor &&
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System.Linq.Enumerable.SequenceEqual(icons, other.icons);
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}
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public override int GetHashCode()
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{
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return HashUtility.CombineHash(
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errorText != null ? errorText.GetHashCode() : 0,
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tooltip != null ? tooltip.GetHashCode() : 0,
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highlightColor.GetHashCode(),
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icons != null ? icons.GetHashCode() : 0
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);
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}
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public static bool operator==(ClipDrawOptions options1, ClipDrawOptions options2)
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{
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return options1.Equals(options2);
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}
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public static bool operator!=(ClipDrawOptions options1, ClipDrawOptions options2)
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{
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return !options1.Equals(options2);
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}
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}
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/// <summary>
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/// Use this class to customize clip types in the TimelineEditor.
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/// </summary>
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public class ClipEditor
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{
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static readonly string k_NoPlayableAssetError = LocalizationDatabase.GetLocalizedString("This clip does not contain a valid playable asset");
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static readonly string k_ScriptLoadError = LocalizationDatabase.GetLocalizedString("The associated script can not be loaded");
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internal readonly bool supportsSubTimelines;
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/// <summary>
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/// Default constructor
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/// </summary>
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public ClipEditor()
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{
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supportsSubTimelines = TypeUtility.HasOverrideMethod(GetType(), nameof(GetSubTimelines));
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}
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/// <summary>
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/// Implement this method to override the default options for drawing a clip.
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/// </summary>
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/// <param name="clip">The clip being drawn.</param>
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/// <returns>The options for drawing a clip.</returns>
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public virtual ClipDrawOptions GetClipOptions(TimelineClip clip)
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{
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return new ClipDrawOptions()
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{
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errorText = GetErrorText(clip),
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tooltip = string.Empty,
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highlightColor = GetDefaultHighlightColor(clip),
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icons = System.Linq.Enumerable.Empty<Texture2D>()
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};
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}
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/// <summary>
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/// Override this method to draw a background for a clip .
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/// </summary>
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/// <param name="clip">The clip being drawn.</param>
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/// <param name="region">The on-screen area where the clip is drawn.</param>
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public virtual void DrawBackground(TimelineClip clip, ClipBackgroundRegion region)
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{
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}
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/// <summary>
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/// Called when a clip is created.
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/// </summary>
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/// <param name="clip">The newly created clip.</param>
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/// <param name="track">The track that the clip is assigned to.</param>
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/// <param name="clonedFrom">The source that the clip was copied from. This can be set to null if the clip is not a copy.</param>
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/// <remarks>
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/// The callback occurs before the clip is assigned to the track.
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/// </remarks>
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public virtual void OnCreate(TimelineClip clip, TrackAsset track, TimelineClip clonedFrom)
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{
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}
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/// <summary>
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/// Gets the error text for the specified clip.
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/// </summary>
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/// <param name="clip">The clip being drawn.</param>
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/// <returns>Returns the error text to be displayed as the tool tip for the clip. If there is no error to be displayed, this method returns string.Empty.</returns>
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public string GetErrorText(TimelineClip clip)
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{
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if (clip == null || clip.asset == null)
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return k_NoPlayableAssetError;
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var playableAsset = clip.asset as ScriptableObject;
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if (playableAsset == null || MonoScript.FromScriptableObject(playableAsset) == null)
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return k_ScriptLoadError;
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return string.Empty;
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}
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/// <summary>
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/// The color drawn under the clip. By default, the color is the same as the track color.
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/// </summary>
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/// <param name="clip">The clip being drawn.</param>
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/// <returns>Returns the highlight color of the clip being drawn.</returns>
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public Color GetDefaultHighlightColor(TimelineClip clip)
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{
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if (clip == null)
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return Color.white;
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return TrackResourceCache.GetTrackColor(clip.parentTrack);
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}
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/// <summary>
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/// Called when a clip is changed by the Editor.
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/// </summary>
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/// <param name="clip">The clip that changed.</param>
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public virtual void OnClipChanged(TimelineClip clip)
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{
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}
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/// <summary>
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/// Gets the sub-timelines for a specific clip. Implement this method if your clip supports playing nested timelines.
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/// </summary>
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/// <param name="clip">The clip with the ControlPlayableAsset.</param>
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/// <param name="director">The playable director driving the Timeline Clip. This may not be the same as TimelineEditor.inspectedDirector.</param>
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/// <param name="subTimelines">Specify the sub-timelines to control.</param>
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public virtual void GetSubTimelines(TimelineClip clip, PlayableDirector director, List<PlayableDirector> subTimelines)
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{
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}
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}
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}
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