Add ButtonAttribute to display methods in editor properties panel

#1917

Source/Engine/Scripting/Attributes/Editor/ButtonAttribute.cs

@@ -0,0 +1,42 @@
+// Copyright (c) 2012-2024 Wojciech Figat. All rights reserved.
+
+using System;
+
+namespace FlaxEngine
+{
+    /// <summary>
+    /// Displays the method in the properties panel where user can click and invoke this method.
+    /// </summary>
+    /// <remarks>Supported on both static and member methods that are parameterless.</remarks>
+    [AttributeUsage(AttributeTargets.Method)]
+    public sealed class ButtonAttribute : Attribute
+    {
+        /// <summary>
+        /// The button text. Empty value will use method name (auto-formatted).
+        /// </summary>
+        public string Text;
+
+        /// <summary>
+        /// The button tooltip text. Empty value will use method documentation.
+        /// </summary>
+        public string Tooltip;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ButtonAttribute"/> class.
+        /// </summary>
+        public ButtonAttribute()
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ButtonAttribute"/> class.
+        /// </summary>
+        /// <param name="text">The button text.</param>
+        /// <param name="tooltip">The button tooltip.</param>
+        public ButtonAttribute(string text, string tooltip = null)
+        {
+            Text = text;
+            Tooltip = tooltip;
+        }
+    }
+}