Add playback buttons and info label to Video Player actor editor

Source/Editor/SceneGraph/Actors/VideoPlayerEditor.cs

@@ -0,0 +1,69 @@
+// Copyright (c) 2012-2024 Wojciech Figat. All rights reserved.
+
+using System;
+using FlaxEngine;
+using FlaxEngine.GUI;
+
+namespace FlaxEditor.CustomEditors.Dedicated
+{
+    /// <summary>
+    /// Custom editor for <see cref="VideoPlayer"/>.
+    /// </summary>
+    [CustomEditor(typeof(VideoPlayer)), DefaultEditor]
+    public class VideoPlayerEditor : ActorEditor
+    {
+        private Label _infoLabel;
+
+        /// <inheritdoc />
+        public override void Initialize(LayoutElementsContainer layout)
+        {
+            base.Initialize(layout);
+
+            // Show playback options during simulation
+            if (Editor.IsPlayMode)
+            {
+                var playbackGroup = layout.Group("Playback");
+                playbackGroup.Panel.Open();
+
+                _infoLabel = playbackGroup.Label(string.Empty).Label;
+                _infoLabel.AutoHeight = true;
+
+                var grid = playbackGroup.CustomContainer<UniformGridPanel>();
+                var gridControl = grid.CustomControl;
+                gridControl.ClipChildren = false;
+                gridControl.Height = Button.DefaultHeight;
+                gridControl.SlotsHorizontally = 3;
+                gridControl.SlotsVertically = 1;
+                grid.Button("Play").Button.Clicked += () => Foreach(x => x.Play());
+                grid.Button("Pause").Button.Clicked += () => Foreach(x => x.Pause());
+                grid.Button("Stop").Button.Clicked += () => Foreach(x => x.Stop());
+            }
+        }
+
+        /// <inheritdoc />
+        public override void Refresh()
+        {
+            base.Refresh();
+
+            if (_infoLabel != null)
+            {
+                var text = string.Empty;
+                foreach (var value in Values)
+                {
+                    if (value is VideoPlayer player)
+                        text += $"Time: {player.Time:##0.0}s / {player.Duration:##0.0}s\nResolution: {player.Size.X}x{player.Size.Y}, Frame Rate: {player.FrameRate}";
+                }
+                _infoLabel.Text = text;
+            }
+        }
+
+        private void Foreach(Action<VideoPlayer> func)
+        {
+            foreach (var value in Values)
+            {
+                if (value is VideoPlayer player)
+                    func(player);
+            }
+        }
+    }
+}