ProjectDDD/Assets/EasyGridBuilder Pro/Scripts/Utilities/Internal/Editor/ReadOnlyDrawer.cs

using UnityEngine;
using UnityEditor;

namespace SoulGames.Utilities
{
    [CustomPropertyDrawer(typeof(ReadOnlyAttribute))]
    public class ReadOnlyDrawer : PropertyDrawer
    {
        public override float GetPropertyHeight(SerializedProperty property,
                                                GUIContent label)
        {
            return EditorGUI.GetPropertyHeight(property, label, true);
        }
    
        public override void OnGUI(Rect position,
                                    SerializedProperty property,
                                    GUIContent label)
        {
            GUI.enabled = false;
            EditorGUI.PropertyField(position, property, label, true);
            GUI.enabled = true;
        }
    }
}