Add support for using unsigned integer input fields in Visject Surface editor

Source/Editor/GUI/Input/UIntValueBox.cs

@@ -0,0 +1,161 @@
+// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
+
+using System;
+using FlaxEditor.Utilities;
+using FlaxEngine;
+
+namespace FlaxEditor.GUI.Input
+{
+    /// <summary>
+    /// Unsigned Integer value editor.
+    /// </summary>
+    /// <seealso cref="uint" />
+    [HideInEditor]
+    public class UIntValueBox : ValueBox<uint>
+    {
+        /// <inheritdoc />
+        public override uint Value
+        {
+            get => _value;
+            set
+            {
+                value = Mathf.Clamp(value, _min, _max);
+                if (_value != value)
+                {
+                    // Set value
+                    _value = value;
+
+                    // Update
+                    UpdateText();
+                    OnValueChanged();
+                }
+            }
+        }
+
+        /// <inheritdoc />
+        public override uint MinValue
+        {
+            get => _min;
+            set
+            {
+                if (_min != value)
+                {
+                    if (value > _max)
+                        throw new ArgumentException();
+
+                    _min = value;
+                    Value = Value;
+                }
+            }
+        }
+
+        /// <inheritdoc />
+        public override uint MaxValue
+        {
+            get => _max;
+            set
+            {
+                if (_max != value)
+                {
+                    if (value < _min)
+                        throw new ArgumentException();
+
+                    _max = value;
+                    Value = Value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="UIntValueBox"/> class.
+        /// </summary>
+        /// <param name="value">The value.</param>
+        /// <param name="x">The x location.</param>
+        /// <param name="y">The y location.</param>
+        /// <param name="width">The width.</param>
+        /// <param name="min">The minimum value.</param>
+        /// <param name="max">The maximum value.</param>
+        /// <param name="slideSpeed">The slide speed.</param>
+        public UIntValueBox(uint value, float x = 0, float y = 0, float width = 120, uint min = uint.MinValue, uint max = uint.MaxValue, float slideSpeed = 1)
+        : base(Mathf.Clamp(value, min, max), x, y, width, min, max, slideSpeed)
+        {
+            UpdateText();
+        }
+
+        /// <summary>
+        /// Sets the value limits.
+        /// </summary>
+        /// <param name="min">The minimum value (bottom range).</param>
+        /// <param name="max">The maximum value (upper range).</param>
+        public void SetLimits(uint min, uint max)
+        {
+            _min = min;
+            _max = Mathf.Max(_min, max);
+            Value = Value;
+        }
+
+        /// <summary>
+        /// Sets the limits from the attribute.
+        /// </summary>
+        /// <param name="limits">The limits.</param>
+        public void SetLimits(RangeAttribute limits)
+        {
+            _min = limits.Min <= 0 ? uint.MinValue : (uint)limits.Min;
+            _max = Math.Max(_min, limits.Max == float.MaxValue ? uint.MaxValue : (uint)limits.Max);
+            Value = Value;
+        }
+
+        /// <summary>
+        /// Sets the limits from the attribute.
+        /// </summary>
+        /// <param name="limits">The limits.</param>
+        public void SetLimits(LimitAttribute limits)
+        {
+            _min = limits.Min <= 0 ? uint.MinValue : (uint)limits.Min;
+            _max = Math.Max(_min, limits.Max == float.MaxValue ? uint.MaxValue : (uint)limits.Max);
+            _slideSpeed = limits.SliderSpeed;
+            Value = Value;
+        }
+
+        /// <summary>
+        /// Sets the limits from the other <see cref="UIntValueBox"/>.
+        /// </summary>
+        /// <param name="other">The other.</param>
+        public void SetLimits(UIntValueBox other)
+        {
+            _min = other._min;
+            _max = other._max;
+            _slideSpeed = other._slideSpeed;
+            Value = Value;
+        }
+
+        /// <inheritdoc />
+        protected sealed override void UpdateText()
+        {
+            var text = _value.ToString();
+
+            SetText(text);
+        }
+
+        /// <inheritdoc />
+        protected override void TryGetValue()
+        {
+            try
+            {
+                var value = ShuntingYard.Parse(Text);
+                Value = (uint)value;
+            }
+            catch (Exception ex)
+            {
+                // Fall back to previous value
+                Editor.LogWarning(ex);
+            }
+        }
+
+        /// <inheritdoc />
+        protected override void ApplySliding(float delta)
+        {
+            Value = _startSlideValue + (uint)delta;
+        }
+    }
+}