重构代码，增加BaseGraph基类

Runtime/API/BaseGraph_API.cs

@@ -0,0 +1,133 @@
+/******************************************/
+/*                                        */
+/*     Copyright (c) 2018 monitor1394     */
+/*     https://github.com/monitor1394     */
+/*                                        */
+/******************************************/
+
+using UnityEngine;
+using System;
+using UnityEngine.EventSystems;
+
+namespace XCharts
+{
+    /// <summary>
+    /// The base class of all graphs or components.
+    /// 所有图形的基类。
+    /// </summary>
+    public partial class BaseGraph
+    {
+        /// <summary>
+        /// The x of graph. 
+        /// 图表的X
+        /// </summary>
+        public float graphX { get { return m_GraphX; } }
+        /// <summary>
+        /// The y of graph. 
+        /// 图表的Y
+        /// </summary>
+        public float graphY { get { return m_GraphY; } }
+        /// <summary>
+        /// The width of graph. 
+        /// 图表的宽
+        /// </summary>
+        public float graphWidth { get { return m_GraphWidth; } }
+        /// <summary>
+        /// The height of graph. 
+        /// 图表的高
+        /// </summary>
+        public float graphHeight { get { return m_GraphHeight; } }
+        /// <summary>
+        /// The position of graph.
+        /// 图表的左下角起始坐标。
+        /// </summary>
+        public Vector3 graphPosition { get { return m_GraphPosition; } }
+        public Rect graphRect { get { return m_GraphRect; } }
+        /// <summary>
+        /// The postion of pointer.
+        /// 鼠标位置
+        /// </summary>
+        public Vector2 pointerPos { get; protected set; }
+        /// <summary>
+        /// 警告信息。
+        /// </summary>
+        public string warningInfo { get; protected set; }
+        public bool isControlledByLayout { get { return m_IsControlledByLayout; } }
+        /// <summary>
+        /// 强制开启鼠标事件检测。
+        /// </summary>
+        public bool forceOpenRaycastTarget { get { return m_ForceOpenRaycastTarget; } set { m_ForceOpenRaycastTarget = value; } }
+        /// <summary>
+        /// 鼠标点击回调。
+        /// </summary>
+        public Action<BaseGraph, PointerEventData> onPointerClick { set { m_OnPointerClick = value; m_ForceOpenRaycastTarget = true; } }
+        /// <summary>
+        /// 鼠标按下回调。
+        /// </summary>
+        public Action<BaseGraph, PointerEventData> onPointerDown { set { m_OnPointerDown = value; m_ForceOpenRaycastTarget = true; } }
+        /// <summary>
+        /// 鼠标弹起回调。
+        /// </summary>
+        public Action<BaseGraph, PointerEventData> onPointerUp { set { m_OnPointerUp = value; m_ForceOpenRaycastTarget = true; } }
+        /// <summary>
+        /// 鼠标进入回调。
+        /// </summary>
+        public Action<BaseGraph, PointerEventData> onPointerEnter { set { m_OnPointerEnter = value; m_ForceOpenRaycastTarget = true; } }
+        /// <summary>
+        /// 鼠标退出回调。
+        /// </summary>
+        public Action<BaseGraph, PointerEventData> onPointerExit { set { m_OnPointerExit = value; m_ForceOpenRaycastTarget = true; } }
+        /// <summary>
+        /// 鼠标开始拖拽回调。
+        /// </summary>
+        public Action<BaseGraph, PointerEventData> onBeginDrag { set { m_OnBeginDrag = value; m_ForceOpenRaycastTarget = true; } }
+        /// <summary>
+        /// 鼠标拖拽回调。
+        /// </summary>
+        public Action<BaseGraph, PointerEventData> onDrag { set { m_OnDrag = value; m_ForceOpenRaycastTarget = true; } }
+        /// <summary>
+        /// 鼠标结束拖拽回调。
+        /// </summary>
+        public Action<BaseGraph, PointerEventData> onEndDrag { set { m_OnEndDrag = value; m_ForceOpenRaycastTarget = true; } }
+        /// <summary>
+        /// 鼠标滚动回调。
+        /// </summary>
+        public Action<BaseGraph, PointerEventData> onScroll { set { m_OnScroll = value; m_ForceOpenRaycastTarget = true; } }
+
+        /// <summary>
+        /// 设置图表的宽高（在非stretch pivot下才有效，其他情况需要自己调整RectTransform）
+        /// </summary>
+        /// <param name="width"></param>
+        /// <param name="height"></param>
+        public virtual void SetSize(float width, float height)
+        {
+            if (LayerHelper.IsFixedWidthHeight(rectTransform))
+            {
+                rectTransform.sizeDelta = new Vector2(width, height);
+            }
+            else
+            {
+                Debug.LogError("Can't set size on stretch pivot,you need to modify rectTransform by yourself.");
+            }
+        }
+
+        /// <summary>
+        /// Redraw graph in next frame.
+        /// 在下一帧刷新图表。
+        /// </summary>
+        public void RefreshGraph()
+        {
+            m_RefreshChart = true;
+        }
+
+        /// <summary>
+        /// 检测警告信息。
+        /// </summary>
+        /// <returns></returns>
+        public string CheckWarning()
+        {
+            warningInfo = CheckHelper.CheckChart(this);
+            return warningInfo;
+        }
+    }
+}