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Source/Editor/GUI/Timeline/Tracks/PostProcessMaterialTrack.cs

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+// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
+
+using System;
+using System.IO;
+using FlaxEngine;
+
+namespace FlaxEditor.GUI.Timeline.Tracks
+{
+    /// <summary>
+    /// The timeline media that represents a post-process material media event.
+    /// </summary>
+    /// <seealso cref="FlaxEditor.GUI.Timeline.Media" />
+    public class PostProcessMaterialMedia : SingleMediaAssetMedia
+    {
+        private sealed class Proxy : ProxyBase<PostProcessMaterialTrack, PostProcessMaterialMedia>
+        {
+            /// <summary>
+            /// Gets or sets the post process material to show.
+            /// </summary>
+            [EditorDisplay("General"), EditorOrder(10), Tooltip("The post process material to show.")]
+            public MaterialBase PostProcessMaterial
+            {
+                get => Track.Asset;
+                set => Track.Asset = value;
+            }
+
+            /// <inheritdoc />
+            public Proxy(PostProcessMaterialTrack track, PostProcessMaterialMedia media)
+            : base(track, media)
+            {
+            }
+        }
+
+        /// <inheritdoc />
+        public override void OnTimelineChanged(Track track)
+        {
+            base.OnTimelineChanged(track);
+
+            PropertiesEditObject = new Proxy(Track as PostProcessMaterialTrack, this);
+        }
+    }
+
+    /// <summary>
+    /// The timeline track that represents a post-process material playback.
+    /// </summary>
+    /// <seealso cref="FlaxEditor.GUI.Timeline.Track" />
+    public class PostProcessMaterialTrack : SingleMediaAssetTrack<MaterialBase, PostProcessMaterialMedia>
+    {
+        /// <summary>
+        /// Gets the archetype.
+        /// </summary>
+        /// <returns>The archetype.</returns>
+        public static TrackArchetype GetArchetype()
+        {
+            return new TrackArchetype
+            {
+                TypeId = 2,
+                Name = "Post Process Material",
+                Create = options => new PostProcessMaterialTrack(ref options),
+                Load = LoadTrack,
+                Save = SaveTrack,
+            };
+        }
+
+        private static void LoadTrack(int version, Track track, BinaryReader stream)
+        {
+            var e = (PostProcessMaterialTrack)track;
+            Guid id = new Guid(stream.ReadBytes(16));
+            e.Asset = FlaxEngine.Content.LoadAsync<MaterialBase>(id);
+            var m = e.TrackMedia;
+            m.StartFrame = stream.ReadInt32();
+            m.DurationFrames = stream.ReadInt32();
+        }
+
+        private static void SaveTrack(Track track, BinaryWriter stream)
+        {
+            var e = (PostProcessMaterialTrack)track;
+            var materialId = e.Asset?.ID ?? Guid.Empty;
+
+            stream.Write(materialId.ToByteArray());
+
+            if (e.Media.Count != 0)
+            {
+                var m = e.TrackMedia;
+                stream.Write(m.StartFrame);
+                stream.Write(m.DurationFrames);
+            }
+            else
+            {
+                stream.Write(0);
+                stream.Write(track.Timeline.DurationFrames);
+            }
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PostProcessMaterialTrack"/> class.
+        /// </summary>
+        /// <param name="options">The options.</param>
+        public PostProcessMaterialTrack(ref TrackCreateOptions options)
+        : base(ref options)
+        {
+        }
+    }
+}