增加LineArrow配置带箭头曲线

Scripts/UI/Internal/LineArrow.cs

@@ -0,0 +1,60 @@
+using System;
+using UnityEngine;
+
+namespace XCharts
+{
+    /// <summary>
+    /// </summary>
+    [Serializable]
+    public class LineArrow
+    {
+        public enum Position
+        {
+            /// <summary>
+            /// 末端箭头
+            /// </summary>
+            End,
+            /// <summary>
+            /// 头端箭头
+            /// </summary>
+            Start
+        }
+        [SerializeField] private bool m_Show;
+        [SerializeField] Position m_Position;
+        [SerializeField] private float m_Width = 10;
+        [SerializeField] private float m_Height = 15;
+        [SerializeField] private float m_Offset = 0;
+        [SerializeField] private float m_Dent = 3;
+
+        /// <summary>
+        /// Whether to show the arrow.
+        /// 是否显示箭头。
+        /// </summary>
+        public bool show { get { return m_Show; } set { m_Show = value; } }
+        /// <summary>
+        /// The position of arrow.
+        /// 箭头位置。
+        /// </summary>
+        public Position position { get { return m_Position; } set { m_Position = value; } }
+        /// <summary>
+        /// The widht of arrow.
+        /// 箭头宽。
+        /// </summary>
+        public float width { get { return m_Width; } set { m_Width = value; } }
+        /// <summary>
+        /// The height of arrow.
+        /// 箭头高。
+        /// </summary>
+        public float height { get { return m_Height; } set { m_Height = value; } }
+        /// <summary>
+        /// The offset of arrow.
+        /// 箭头偏移。
+        /// </summary>
+        public float offset { get { return m_Offset; } set { m_Offset = value; } }
+        /// <summary>
+        /// The dent of arrow.
+        /// 箭头的凹度。
+        /// </summary>
+        public float dent { get { return m_Dent; } set { m_Dent = value; } }
+    }
+}