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Source/Engine/Render2D/TextRange.cs

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+// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
+
+using System;
+
+namespace FlaxEngine
+{
+    partial struct TextRange
+    {
+        /// <summary>
+        /// Gets the range length.
+        /// </summary>
+        public int Length => EndIndex - StartIndex;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="TextRange"/> struct.
+        /// </summary>
+        /// <param name="startIndex">The start index.</param>
+        /// <param name="endIndex">The end index.</param>
+        public TextRange(int startIndex, int endIndex)
+        {
+            StartIndex = startIndex;
+            EndIndex = endIndex;
+        }
+
+        /// <summary>
+        /// Gets a value indicating whether range is empty.
+        /// </summary>
+        public bool IsEmpty => (EndIndex - StartIndex) <= 0;
+
+        /// <summary>
+        /// Determines whether this range contains the character index.
+        /// </summary>
+        /// <param name="index">The index.</param>
+        /// <returns><c>true</c> if range contains the specified character index; otherwise, <c>false</c>.</returns>
+        public bool Contains(int index) => index >= StartIndex && index < EndIndex;
+
+        /// <summary>
+        /// Determines whether this range intersects with the other range.
+        /// </summary>
+        /// <param name="other">The other text range.</param>
+        /// <returns><c>true</c> if range intersects with the specified range index;, <c>false</c>.</returns>
+        public bool Intersect(ref TextRange other) => Math.Min(EndIndex, other.EndIndex) > Math.Max(StartIndex, other.StartIndex);
+
+        /// <inheritdoc />
+        public override string ToString()
+        {
+            return string.Format("Range: [{0}, {1}), Length: {2}", StartIndex, EndIndex, Length);
+        }
+    }
+}