增加Chart的onSerieClick，onSerieDown，onSerieEnter和onSerieExit回调

Documentation~/en/api.md

@@ -69,6 +69,8 @@ slug: /api
 - [SerieDataComponentAttribute](#seriedatacomponentattribute)
 - [SerieDataContext](#seriedatacontext)
 - [SerieDataExtraFieldAttribute](#seriedataextrafieldattribute)
+- [SerieEventData](#serieeventdata)
+- [SerieEventDataPool](#serieeventdatapool)
 - [SerieHandler](#seriehandler)
 - [SerieHandler<T>](#seriehandlert)
 - [SerieHandlerAttribute](#seriehandlerattribute)
@@ -870,6 +872,19 @@ Inherits or Implemented: [Attribute](#attribute)
 | SerieDataExtraFieldAttribute() |public SerieDataExtraFieldAttribute(string field1, string field2, string field3, string field4, string field5, string field6)|
 | SerieDataExtraFieldAttribute() |public SerieDataExtraFieldAttribute(string field1, string field2, string field3, string field4, string field5, string field6, string field7)|
 
+## SerieEventData
+
+|public method|description|
+|--|--|
+| Reset() |public void Reset()|
+
+## SerieEventDataPool
+
+|public method|description|
+|--|--|
+| Get() |public static SerieEventData Get(Vector3 pos, int serieIndex, int dataIndex, int dimension, double value)|
+| Release() |public static void Release(SerieEventData toRelease)|
+
 ## SerieHandler
 
 |public method|description|
@@ -896,6 +911,7 @@ Inherits or Implemented: [Attribute](#attribute)
 | RefreshLabelNextFrame() |public virtual void RefreshLabelNextFrame() { }|
 | RemoveComponent() |public virtual void RemoveComponent() { }|
 | Update() |public virtual void Update() { }|
+| UpdateSerieContext() |public virtual void UpdateSerieContext() { }|
 
 ## SerieHandler<T>
 
@@ -904,6 +920,8 @@ Inherits or Implemented: [SerieHandler where T](#seriehandler where t),[Serie](#
 |public method|description|
 |--|--|
 | DrawLabelLineSymbol() |public void DrawLabelLineSymbol(VertexHelper vh, LabelLine labelLine, Vector3 startPos, Vector3 endPos, Color32 defaultColor)|
+| GetPointerItemDataDimension() |public override int GetPointerItemDataDimension()|
+| GetPointerItemDataIndex() |public override int GetPointerItemDataIndex()|
 | GetSerieDataAutoColor() |public virtual Color GetSerieDataAutoColor(SerieData serieData)|
 | GetSerieDataLabelOffset() |public virtual Vector3 GetSerieDataLabelOffset(SerieData serieData, LabelStyle label)|
 | GetSerieDataLabelPosition() |public virtual Vector3 GetSerieDataLabelPosition(SerieData serieData, LabelStyle label)|
@@ -912,6 +930,8 @@ Inherits or Implemented: [SerieHandler where T](#seriehandler where t),[Serie](#
 | OnLegendButtonClick() |public override void OnLegendButtonClick(int index, string legendName, bool show)|
 | OnLegendButtonEnter() |public override void OnLegendButtonEnter(int index, string legendName)|
 | OnLegendButtonExit() |public override void OnLegendButtonExit(int index, string legendName)|
+| OnPointerClick() |public override void OnPointerClick(PointerEventData eventData)|
+| OnPointerDown() |public override void OnPointerDown(PointerEventData eventData)|
 | RefreshEndLabelInternal() |public virtual void RefreshEndLabelInternal()|
 | RefreshLabelInternal() |public override void RefreshLabelInternal()|
 | RefreshLabelNextFrame() |public override void RefreshLabelNextFrame()|

Documentation~/zh/api.md

@@ -69,6 +69,8 @@ slug: /api
 - [SerieDataComponentAttribute](#seriedatacomponentattribute)
 - [SerieDataContext](#seriedatacontext)
 - [SerieDataExtraFieldAttribute](#seriedataextrafieldattribute)
+- [SerieEventData](#serieeventdata)
+- [SerieEventDataPool](#serieeventdatapool)
 - [SerieHandler](#seriehandler)
 - [SerieHandler<T>](#seriehandlert)
 - [SerieHandlerAttribute](#seriehandlerattribute)
@@ -870,6 +872,19 @@ Inherits or Implemented: [Attribute](#attribute)
 | SerieDataExtraFieldAttribute() |public SerieDataExtraFieldAttribute(string field1, string field2, string field3, string field4, string field5, string field6)|
 | SerieDataExtraFieldAttribute() |public SerieDataExtraFieldAttribute(string field1, string field2, string field3, string field4, string field5, string field6, string field7)|
 
+## SerieEventData
+
+|public method|description|
+|--|--|
+| Reset() |public void Reset()|
+
+## SerieEventDataPool
+
+|public method|description|
+|--|--|
+| Get() |public static SerieEventData Get(Vector3 pos, int serieIndex, int dataIndex, int dimension, double value)|
+| Release() |public static void Release(SerieEventData toRelease)|
+
 ## SerieHandler
 
 |public method|description|
@@ -896,6 +911,7 @@ Inherits or Implemented: [Attribute](#attribute)
 | RefreshLabelNextFrame() |public virtual void RefreshLabelNextFrame() { }|
 | RemoveComponent() |public virtual void RemoveComponent() { }|
 | Update() |public virtual void Update() { }|
+| UpdateSerieContext() |public virtual void UpdateSerieContext() { }|
 
 ## SerieHandler<T>
 
@@ -904,6 +920,8 @@ Inherits or Implemented: [SerieHandler where T](#seriehandler where t),[Serie](#
 |public method|description|
 |--|--|
 | DrawLabelLineSymbol() |public void DrawLabelLineSymbol(VertexHelper vh, LabelLine labelLine, Vector3 startPos, Vector3 endPos, Color32 defaultColor)|
+| GetPointerItemDataDimension() |public override int GetPointerItemDataDimension()|
+| GetPointerItemDataIndex() |public override int GetPointerItemDataIndex()|
 | GetSerieDataAutoColor() |public virtual Color GetSerieDataAutoColor(SerieData serieData)|
 | GetSerieDataLabelOffset() |public virtual Vector3 GetSerieDataLabelOffset(SerieData serieData, LabelStyle label)|
 | GetSerieDataLabelPosition() |public virtual Vector3 GetSerieDataLabelPosition(SerieData serieData, LabelStyle label)|
@@ -912,6 +930,8 @@ Inherits or Implemented: [SerieHandler where T](#seriehandler where t),[Serie](#
 | OnLegendButtonClick() |public override void OnLegendButtonClick(int index, string legendName, bool show)|
 | OnLegendButtonEnter() |public override void OnLegendButtonEnter(int index, string legendName)|
 | OnLegendButtonExit() |public override void OnLegendButtonExit(int index, string legendName)|
+| OnPointerClick() |public override void OnPointerClick(PointerEventData eventData)|
+| OnPointerDown() |public override void OnPointerDown(PointerEventData eventData)|
 | RefreshEndLabelInternal() |public virtual void RefreshEndLabelInternal()|
 | RefreshLabelInternal() |public override void RefreshLabelInternal()|
 | RefreshLabelNextFrame() |public override void RefreshLabelNextFrame()|

Documentation~/zh/changelog.md

@@ -65,6 +65,8 @@ slug: /changelog
 
 ## master
 
+* (2023.03.09) 增加`Chart`的`onSerieClick`，`onSerieDown`，`onSerieEnter`和`onSerieExit`回调
+* (2023.03.09) 修复`Pie`的点击选中偏移不生效的问题
 * (2023.03.04) 增加`Legend`的`Positions`可自定义图例的位置
 * (2023.03.03) 修复`Animation`变更动画可能无效的问题
 * (2023.02.28) 修复`Legend`点击时`Serie`的`Label`不刷新的问题

Editor/Series/PieEditor.cs

@@ -18,6 +18,7 @@ namespace XCharts.Editor
                 PropertyField("m_RoundCap");
                 PropertyField("m_Ignore");
                 PropertyField("m_IgnoreValue");
+                PropertyField("m_ClickOffset");
             });
             PropertyField("m_ItemStyle");
             PropertyField("m_Animation");

Examples/Example30_PieChart.cs

@@ -64,7 +64,7 @@ namespace XCharts.Example
             chart.AddData(0, 135, "视频广告");
             chart.AddData(0, 1548, "搜索引擎");
 
-            chart.onPointerClickPie = delegate (PointerEventData e, int serieIndex, int dataIndex)
+            chart.onSerieClick = delegate (SerieEventData data)
             {
 
             };

Examples/Example_Test.cs

@@ -1,4 +1,5 @@
 using UnityEngine;
+using UnityEngine.EventSystems;
 using UnityEngine.UI;
 using XCharts.Runtime;
 #if INPUT_SYSTEM_ENABLED
@@ -14,6 +15,9 @@ namespace XCharts.Example
         void Awake()
         {
             chart = gameObject.GetComponent<BaseChart>();
+            chart.onSerieClick = OnPointerClickLine;
+            chart.onSerieEnter = OnPointerEnterLine;
+            chart.onSerieExit = OnPointerExitLine;
             var btnTrans = transform.parent.Find("Button");
             if (btnTrans)
             {
@@ -21,6 +25,21 @@ namespace XCharts.Example
             }
         }
 
+        void OnPointerClickLine(SerieEventData data)
+        {
+            Debug.Log("OnPointerClick: " + data.serieIndex+ " " + data.dataIndex +" "+ data.dimension);
+        }
+
+        void OnPointerEnterLine(SerieEventData data)
+        {
+            Debug.Log("OnPointerEnter: " + data.serieIndex + " " + data.dataIndex + " " + data.dimension);
+        }
+
+        void OnPointerExitLine(SerieEventData data)
+        {
+            Debug.Log("OnPointerExit: " + data.serieIndex + " " + data.dataIndex + " " + data.dimension);
+        }
+
         void Update()
         {
             if (Input.GetKeyDown(KeyCode.Space))

README.md

@@ -18,27 +18,27 @@
   <a href="https://github.com/XCharts-Team/XCharts/releases">
     <img src="https://img.shields.io/github/v/release/XCharts-Team/XCharts?include_prereleases"></img>
   </a>
-  <a href="">
+  <a href="https://github.com/XCharts-Team/XCharts">
     <img src="https://img.shields.io/github/repo-size/monitor1394/unity-ugui-xcharts"></img>
   </a>
-  <a href="">
+  <a href="https://github.com/XCharts-Team/XCharts">
     <img src="https://img.shields.io/github/languages/code-size/monitor1394/unity-ugui-xcharts"></img>
   </a>
-  <a href="">
+  <a href="https://xcharts-team.github.io/docs/tutorial01">
     <img src="https://img.shields.io/badge/Unity-5.6+-green"></img>
   </a>
-  <a href="">
+  <a href="https://xcharts-team.github.io/docs/tutorial01">
     <img src="https://img.shields.io/badge/TextMeshPro-YES-green"></img>
   </a>
 </p>
 <p align="center">
-  <a href="">
+  <a href="https://github.com/XCharts-Team/XCharts/stargazers">
     <img src="https://img.shields.io/github/stars/XCharts-Team/XCharts?style=social"></img>
   </a>
-  <a href="">
+  <a href="https://github.com/XCharts-Team/XCharts/forks">
     <img src="https://img.shields.io/github/forks/XCharts-Team/XCharts?style=social"></img>
   </a>
-  <a href="">
+  <a href="https://github.com/XCharts-Team/XCharts/issues">
     <img src="https://img.shields.io/github/issues-closed/XCharts-Team/XCharts?color=green&label=%20%20%20%20issues&logoColor=green&style=social"></img>
   </a>
 </p>

Runtime/Internal/BaseChart.API.cs

@@ -104,21 +104,48 @@ namespace XCharts.Runtime
         /// </summary>
         public CustomDrawGaugePointerFunction customDrawGaugePointerFunction { set { m_CustomDrawGaugePointerFunction = value; } get { return m_CustomDrawGaugePointerFunction; } }
         /// <summary>
+        /// the callback function of pointer click serie.
+        /// |鼠标点击Serie回调。
+        /// </summary>
+        [Since("v3.6.0")]
+        public Action<SerieEventData> onSerieClick { set { m_OnSerieClick = value; m_ForceOpenRaycastTarget = true; } get { return m_OnSerieClick; } }
+        /// <summary>
+        /// the callback function of pointer down serie.
+        /// |鼠标按下Serie回调。
+        /// </summary>
+        [Since("v3.6.0")]
+        public Action<SerieEventData> onSerieDown { set { m_OnSerieDown = value; m_ForceOpenRaycastTarget = true; } get { return m_OnSerieDown; } }
+        /// <summary>
+        /// the callback function of pointer enter serie.
+        /// |鼠标进入Serie回调。
+        /// </summary>
+        [Since("v3.6.0")]
+        public Action<SerieEventData> onSerieEnter { set { m_OnSerieEnter = value; m_ForceOpenRaycastTarget = true; } get { return m_OnSerieEnter; } }
+        /// <summary>
+        /// the callback function of pointer exit serie.
+        /// |鼠标离开Serie回调。
+        /// </summary>
+        [Since("v3.6.0")]
+        public Action<SerieEventData> onSerieExit { set { m_OnSerieExit = value; m_ForceOpenRaycastTarget = true; } get { return m_OnSerieExit; } }
+        /// <summary>
         /// the callback function of pointer click pie area.
         /// |点击饼图区域回调。参数：PointerEventData，SerieIndex，SerieDataIndex
         /// </summary>
-        public Action<PointerEventData, int, int> onPointerClickPie { set { m_OnPointerClickPie = value; m_ForceOpenRaycastTarget = true; } get { return m_OnPointerClickPie; } }
+        [Obsolete("Use \"onSerieClick\" instead", true)]
+        public Action<PointerEventData, int, int> onPointerClickPie { get; set; }
         /// <summary>
         /// the callback function of pointer enter pie area.
         /// |鼠标进入和离开饼图区域回调，SerieDataIndex为-1时表示离开。参数：PointerEventData，SerieIndex，SerieDataIndex
         /// </summary>
         [Since("v3.3.0")]
+        [Obsolete("Use \"onSerieEnter\" instead", true)]
         public Action<int, int> onPointerEnterPie { set { m_OnPointerEnterPie = value; m_ForceOpenRaycastTarget = true; } get { return m_OnPointerEnterPie; } }
         /// <summary>
         /// the callback function of click bar.
         /// |点击柱形图柱条回调。参数：eventData, dataIndex
         /// </summary>
-        public Action<PointerEventData, int> onPointerClickBar { set { m_OnPointerClickBar = value; m_ForceOpenRaycastTarget = true; } get { return m_OnPointerClickBar; } }
+        [Obsolete("Use \"onSerieClick\" instead", true)]
+        public Action<PointerEventData, int> onPointerClickBar { get; set; }
         /// <summary>
         /// 坐标轴变更数据索引时回调。参数：axis, dataIndex/dataValue
         /// </summary>

Runtime/Internal/BaseChart.cs

@@ -89,9 +89,11 @@ namespace XCharts.Runtime
         protected Action<VertexHelper> m_OnDrawTop;
         protected Action<VertexHelper, Serie> m_OnDrawSerieBefore;
         protected Action<VertexHelper, Serie> m_OnDrawSerieAfter;
-        protected Action<PointerEventData, int, int> m_OnPointerClickPie;
+        protected Action<SerieEventData> m_OnSerieClick;
+        protected Action<SerieEventData> m_OnSerieDown;
+        protected Action<SerieEventData> m_OnSerieEnter;
+        protected Action<SerieEventData> m_OnSerieExit;
         protected Action<int, int> m_OnPointerEnterPie;
-        protected Action<PointerEventData, int> m_OnPointerClickBar;
         protected Action<Axis, double> m_OnAxisPointerValueChanged;
         protected Action<Legend, int, string, bool> m_OnLegendClick;
         protected Action<Legend, int, string> m_OnLegendEnter;

Runtime/Internal/BaseGraph.cs

@@ -228,7 +228,7 @@ namespace XCharts.Runtime
 
         protected virtual void CheckRefreshChart()
         {
-            if (m_RefreshChart)
+            if (m_RefreshChart && m_Painter != null)
             {
                 m_Painter.Refresh();
                 m_RefreshChart = false;
@@ -237,6 +237,7 @@ namespace XCharts.Runtime
 
         protected virtual void CheckRefreshPainter()
         {
+            if (m_Painter == null) return;
             m_Painter.CheckRefresh();
         }
 

Runtime/Internal/Misc/SerieEventData.cs

@@ -0,0 +1,46 @@
+using UnityEngine;
+
+namespace XCharts.Runtime
+{
+    /// <summary>
+    /// the data of serie event.
+    /// |serie事件的数据。
+    /// </summary>
+    public class SerieEventData
+    {
+        /// <summary>
+        /// the position of pointer in chart.
+        /// |鼠标在chart中的位置。
+        /// </summary>
+        public Vector3 pointerPos { get; set; }
+        /// <summary>
+        /// the index of serie in chart.series.
+        /// |在chart.series中的索引。
+        /// </summary>
+        public int serieIndex { get; set; }
+        /// <summary>
+        /// the index of data in serie.data.
+        /// |在serie.data中的索引。
+        /// </summary>
+        public int dataIndex { get; set; }
+        /// <summary>
+        /// the dimension of data.
+        /// |数据的维度。
+        /// </summary>
+        public int dimension { get; set; }
+        /// <summary>
+        /// the value of data.
+        /// |数据的值。
+        /// </summary>
+        public double value { get; set; }
+
+        public void Reset()
+        {
+            serieIndex = -1;
+            dataIndex = -1;
+            dimension = -1;
+            value = 0;
+            pointerPos = Vector3.zero;
+        }
+    }
+}

Runtime/Internal/Misc/SerieEventData.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: fdfaa773d93294d78b2fb4b8f42708a3
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Runtime/Internal/Pools/SerieEventDataPool.cs

@@ -0,0 +1,33 @@
+using UnityEngine;
+
+namespace XCharts.Runtime
+{
+    public static class SerieEventDataPool
+    {
+        private static readonly ObjectPool<SerieEventData> s_ListPool = new ObjectPool<SerieEventData>(null, OnClear);
+
+        static void OnGet(SerieEventData data)
+        {
+        }
+
+        static void OnClear(SerieEventData data)
+        {
+            data.Reset();
+        }
+
+        public static SerieEventData Get(Vector3 pos, int serieIndex, int dataIndex, int dimension, double value)
+        {
+            var data = s_ListPool.Get();
+            data.serieIndex = serieIndex;
+            data.dataIndex = dataIndex;
+            data.pointerPos = pos;
+            data.dimension = dimension;
+            return data;
+        }
+
+        public static void Release(SerieEventData toRelease)
+        {
+            s_ListPool.Release(toRelease);
+        }
+    }
+}

Runtime/Internal/Pools/SerieEventDataPool.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 30d123dd5c38446f18183f50336322bb
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Runtime/Internal/Utilities/ChartHelper.cs

@@ -161,11 +161,11 @@ namespace XCharts.Runtime
             {
 #if UNITY_EDITOR
                 if (!Application.isPlaying)
-                    GameObject.DestroyImmediate(component as GameObject, true);
+                    GameObject.DestroyImmediate(component as UnityEngine.Object);
                 else
-                    GameObject.Destroy(component as GameObject);
+                    GameObject.Destroy(component as UnityEngine.Object);
 #else
-                GameObject.Destroy(component as GameObject);
+                GameObject.Destroy(component as UnityEngine.Object);
 #endif
             }
         }
@@ -389,6 +389,7 @@ namespace XCharts.Runtime
             var alignment = textStyle.GetAlignment(autoAlignment);
             UpdateAnchorAndPivotByTextAlignment(alignment, out anchorMin, out anchorMax, out pivot);
             var labelObj = AddObject(name, parent, anchorMin, anchorMax, pivot, sizeDelta);
+            ChartHelper.RemoveComponent<Text>(labelObj);
             var label = EnsureComponent<ChartLabel>(labelObj);
             label.text = AddTextObject("Text", label.gameObject.transform, anchorMin, anchorMax, pivot,
                 sizeDelta, textStyle, theme, autoColor, autoAlignment, label.text);

Runtime/Serie/Bar/BarHandler.cs

@@ -78,16 +78,6 @@ namespace XCharts.Runtime
             }
         }
 
-        public override void OnPointerDown(PointerEventData eventData)
-        {
-            if (!serie.context.pointerEnter) return;
-            if (serie.context.pointerItemDataIndex < 0) return;
-            if (chart.onPointerClickBar != null)
-            {
-                chart.onPointerClickBar(eventData, serie.context.pointerItemDataIndex);
-            }
-        }
-
         private void UpdateSerieGridContext()
         {
             if (m_SerieGrid == null)

Runtime/Serie/Bar/SimplifiedBarHandler.cs

@@ -14,7 +14,6 @@ namespace XCharts.Runtime
         public override void Update()
         {
             base.Update();
-            UpdateSerieContext();
         }
 
         public override void UpdateTooltipSerieParams(int dataIndex, bool showCategory, string category,
@@ -30,7 +29,7 @@ namespace XCharts.Runtime
             DrawBarSerie(vh, serie, serie.context.colorIndex);
         }
 
-        private void UpdateSerieContext()
+        public override void UpdateSerieContext()
         {
             if (m_SerieGrid == null)
                 return;

Runtime/Serie/Heatmap/HeatmapHandler.cs

@@ -27,10 +27,6 @@ namespace XCharts.Runtime
         public override void Update()
         {
             base.Update();
-            if (serie.IsUseCoord<GridCoord>())
-                UpdateSerieContext();
-            else if (serie.IsUseCoord<PolarCoord>())
-                UpdateSeriePolarContext();
         }
 
         public override void DrawSerie(VertexHelper vh)
@@ -121,7 +117,15 @@ namespace XCharts.Runtime
             }
         }
 
-        private void UpdateSerieContext()
+        public override void UpdateSerieContext()
+        {
+            if (serie.IsUseCoord<GridCoord>())
+                UpdateSerieGridContext();
+            else if (serie.IsUseCoord<PolarCoord>())
+                UpdateSeriePolarContext();
+        }
+
+        private void UpdateSerieGridContext()
         {
             if (m_SerieGrid == null)
                 return;

Runtime/Serie/Line/LineHandler.cs

@@ -1,6 +1,7 @@
 using System.Collections.Generic;
 using System.Text;
 using UnityEngine;
+using UnityEngine.EventSystems;
 using UnityEngine.UI;
 using XUGL;
 
@@ -96,5 +97,27 @@ namespace XCharts.Runtime
                 }
             }
         }
+
+        public override int GetPointerItemDataIndex()
+        {
+            var symbolSize = SerieHelper.GetSysmbolSize(serie, null, chart.theme, chart.theme.serie.lineSymbolSize) * 1.5f;
+            var count = serie.context.dataPoints.Count;
+            for (int i = 0; i < count; i++)
+            {
+                var index = serie.context.dataIndexs[i];
+                var serieData = serie.GetSerieData(index);
+                if (serieData == null)
+                    continue;
+                if (serieData.context.isClip)
+                    continue;
+
+                var pos = serie.context.dataPoints[i];
+                if (Vector2.Distance(pos, chart.pointerPos) < symbolSize)
+                {
+                    return i;
+                }
+            }
+            return -1;
+        }
     }
 }

Runtime/Serie/Line/SimplifiedLineHandler.cs

@@ -15,7 +15,6 @@ namespace XCharts.Runtime
         public override void Update()
         {
             base.Update();
-            UpdateSerieContext();
         }
 
         public override void UpdateTooltipSerieParams(int dataIndex, bool showCategory, string category,
@@ -31,7 +30,7 @@ namespace XCharts.Runtime
             DrawLineSerie(vh, serie);
         }
 
-        private void UpdateSerieContext()
+        public override void UpdateSerieContext()
         {
             if (m_SerieGrid == null)
                 return;

Runtime/Serie/Parallel/ParallelHandler.cs

@@ -11,7 +11,6 @@ namespace XCharts.Runtime
         public override void Update()
         {
             base.Update();
-            UpdateSerieContext();
         }
 
         public override void DrawSerie(VertexHelper vh)
@@ -19,8 +18,6 @@ namespace XCharts.Runtime
             DrawParallelSerie(vh, serie);
         }
 
-        private void UpdateSerieContext() { }
-
         private void DrawParallelSerie(VertexHelper vh, Parallel serie)
         {
             if (!serie.show) return;

Runtime/Serie/Pie/PieHandler.cs

@@ -12,7 +12,6 @@ namespace XCharts.Runtime
         public override void Update()
         {
             base.Update();
-            UpdateSerieContext();
         }
 
         public override void DrawBase(VertexHelper vh)
@@ -79,32 +78,28 @@ namespace XCharts.Runtime
 
         public override void OnPointerDown(PointerEventData eventData)
         {
-            if (!chart.HasSerie<Pie>()) return;
             if (chart.pointerPos == Vector2.zero) return;
+            var dataIndex = GetPiePosIndex(serie, chart.pointerPos);
             var refresh = false;
-            for (int i = 0; i < chart.series.Count; i++)
+            if (dataIndex >= 0)
-            {
-                var serie = chart.GetSerie(i);
-                if (!(serie is Pie)) continue;
-                var index = GetPiePosIndex(serie, chart.pointerPos);
-                if (index >= 0)
             {
                 refresh = true;
                 for (int j = 0; j < serie.data.Count; j++)
                 {
-                        if (j == index) serie.data[j].context.selected = !serie.data[j].context.selected;
+                    if (j == dataIndex) serie.data[j].context.selected = !serie.data[j].context.selected;
                     else serie.data[j].context.selected = false;
                 }
-                    if (chart.onPointerClickPie != null)
-                    {
-                        chart.onPointerClickPie(eventData, i, index);
-                    }
-                }
             }
             if (refresh) chart.RefreshChart();
+            base.OnPointerDown(eventData);
         }
 
-        private void UpdateSerieContext()
+        public override int GetPointerItemDataIndex()
+        {
+            return GetPiePosIndex(serie, chart.pointerPos);
+        }
+
+        public override void UpdateSerieContext()
         {
             var needCheck = m_LegendEnter || (chart.isPointerInChart && PointerIsInPieSerie(serie, chart.pointerPos));
             var needInteract = false;
@@ -123,21 +118,16 @@ namespace XCharts.Runtime
                         serieData.context.highlight = false;
                         serieData.interact.SetValueAndColor(ref needInteract, serieData.context.outsideRadius, color, toColor);
                     }
-                    if (chart.onPointerEnterPie != null)
-                    {
-                        chart.onPointerEnterPie(serie.index, serie.context.pointerItemDataIndex);
-                    }
                     if (needInteract)
-                    {
                         chart.RefreshPainter(serie);
                 }
-                }
                 return;
             }
             m_LastCheckContextFlag = needCheck;
             var lastPointerItemDataIndex = serie.context.pointerItemDataIndex;
             var dataIndex = GetPiePosIndex(serie, chart.pointerPos);
             serie.context.pointerItemDataIndex = -1;
+            serie.context.pointerEnter = dataIndex >= 0;
             for (int i = 0; i < serie.dataCount; i++)
             {
                 var serieData = serie.data[i];
@@ -162,10 +152,6 @@ namespace XCharts.Runtime
             if (lastPointerItemDataIndex != serie.context.pointerItemDataIndex)
             {
                 needInteract = true;
-                if (chart.onPointerEnterPie != null)
-                {
-                    chart.onPointerEnterPie(serie.index, serie.context.pointerItemDataIndex);
-                }
             }
             if (needInteract)
             {
@@ -234,7 +220,7 @@ namespace XCharts.Runtime
                     serieData.context.outsideRadius += chart.theme.serie.pieTooltipExtraRadius;
                 }
                 var offset = 0f;
-                if (serie.pieClickOffset && serieData.selected)
+                if (serie.pieClickOffset && (serieData.selected || serieData.context.selected))
                 {
                     offset += chart.theme.serie.pieSelectedOffset;
                 }
@@ -258,7 +244,7 @@ namespace XCharts.Runtime
                     serieData.context.offsetRadius = 0;
                     serieData.context.insideRadius -= serieData.context.offsetRadius;
                     serieData.context.outsideRadius -= serieData.context.offsetRadius;
-                    if (serie.pieClickOffset && serieData.selected)
+                    if (serie.pieClickOffset && (serieData.selected || serieData.context.selected))
                     {
                         serieData.context.offsetRadius += chart.theme.serie.pieSelectedOffset;
                         if (serieData.context.insideRadius > 0)
@@ -350,7 +336,7 @@ namespace XCharts.Runtime
                     serieData.interact.SetValueAndColor(ref interacting, outsideRadius, color, toColor);
                 }
 
-                if (serie.pieClickOffset && serieData.selected)
+                if (serie.pieClickOffset && (serieData.selected || serieData.context.selected))
                 {
                     var drawEndDegree = serieData.context.currentAngle;
                     var needRoundCap = serie.roundCap && insideRadius > 0;
@@ -538,7 +524,7 @@ namespace XCharts.Runtime
                 var serieData = serie.data[i];
                 if (angle >= serieData.context.startAngle && angle <= serieData.context.toAngle)
                 {
-                    var ndist = serieData.selected ?
+                    var ndist = (serieData.selected || serieData.context.selected) ?
                         Vector2.Distance(local, serieData.context.offsetCenter) :
                         dist;
                     if (ndist >= serieData.context.insideRadius && ndist <= serieData.context.outsideRadius)

Runtime/Serie/Radar/RadarHandler.cs

@@ -12,7 +12,6 @@ namespace XCharts.Runtime
         public override void Update()
         {
             base.Update();
-            UpdateSerieContext();
         }
 
         public override void DrawSerie(VertexHelper vh)
@@ -86,22 +85,33 @@ namespace XCharts.Runtime
             }
         }
 
-        private void UpdateSerieContext()
+        public override void UpdateSerieContext()
         {
             var needCheck = m_LegendEnter ||
                 (chart.isPointerInChart && (m_RadarCoord != null && m_RadarCoord.IsPointerEnter()));
             var needInteract = false;
-            var needHideAll = false;
             if (!needCheck)
             {
-                if (m_LastCheckContextFlag == needCheck)
+                if (m_LastCheckContextFlag != needCheck)
+                {
+                    m_LastCheckContextFlag = needCheck;
+                    serie.context.pointerItemDataIndex = -1;
+                    serie.context.pointerItemDataDimension = -1;
+                    serie.context.pointerEnter = false;
+                    foreach (var serieData in serie.data)
+                    {
+                        serieData.context.highlight = false;
+                        serieData.interact.Reset();
+                    }
+                    chart.RefreshPainter(serie);
+                }
                 return;
-                needHideAll = true;
             }
             m_LastCheckContextFlag = needCheck;
             serie.highlight = false;
             serie.context.pointerEnter = false;
             serie.context.pointerItemDataIndex = -1;
+            serie.context.pointerItemDataDimension = -1;
             var areaStyle = serie.areaStyle;
             var themeSymbolSize = chart.theme.serie.lineSymbolSize;
             switch (serie.radarType)
@@ -112,21 +122,23 @@ namespace XCharts.Runtime
                         var serieData = serie.data[i];
                         var symbol = SerieHelper.GetSerieSymbol(serie, serieData);
                         var symbolSize = symbol.GetSize(serieData.data, chart.theme.serie.lineSymbolSize);
-                        if (needHideAll || m_LegendEnter)
+                        if (m_LegendEnter)
                         {
-                            serieData.context.highlight = needHideAll ? false : true;
+                            serieData.context.highlight = true;
                             serieData.interact.SetValue(ref needInteract, symbolSize, serieData.context.highlight);
                         }
                         else
                         {
                             serieData.context.highlight = false;
-                            foreach (var pos in serieData.context.dataPoints)
+                            for (int n = 0; n < serieData.context.dataPoints.Count; n++)
                             {
+                                var pos = serieData.context.dataPoints[n];
                                 if (Vector3.Distance(chart.pointerPos, pos) < symbolSize * 2)
                                 {
                                     serie.highlight = true;
                                     serie.context.pointerEnter = true;
                                     serie.context.pointerItemDataIndex = i;
+                                    serie.context.pointerItemDataDimension = n;
                                     serieData.context.highlight = true;
                                     break;
                                 }
@@ -144,6 +156,7 @@ namespace XCharts.Runtime
                                         serie.highlight = true;
                                         serie.context.pointerEnter = true;
                                         serie.context.pointerItemDataIndex = i;
+                                        serie.context.pointerItemDataDimension = n;
                                         serieData.context.highlight = true;
                                         break;
                                     }
@@ -163,6 +176,7 @@ namespace XCharts.Runtime
                         {
                             serie.context.pointerEnter = true;
                             serie.context.pointerItemDataIndex = i;
+                            serie.context.pointerItemDataDimension = 1;
                             serieData.context.highlight = true;
                             needInteract = true;
                         }
@@ -183,6 +197,7 @@ namespace XCharts.Runtime
                             {
                                 serie.context.pointerEnter = true;
                                 serie.context.pointerItemDataIndex = n;
+                                serie.context.pointerItemDataDimension = 1;
                                 p1.context.highlight = true;
                                 needInteract = true;
                                 break;

Runtime/Serie/Ring/RingHandler.cs

@@ -16,10 +16,9 @@ namespace XCharts.Runtime
         public override void Update()
         {
             base.Update();
-            UpdateSerieContext();
         }
 
-        private void UpdateSerieContext()
+        public override void UpdateSerieContext()
         {
             var needCheck = chart.isPointerInChart || m_LegendEnter;
             var needInteract = false;

Runtime/Serie/Scatter/BaseScatterHandler.cs

@@ -13,7 +13,6 @@ namespace XCharts.Runtime
         public override void Update()
         {
             base.Update();
-            UpdateSerieContext();
         }
 
         public override void UpdateTooltipSerieParams(int dataIndex, bool showCategory, string category,
@@ -63,7 +62,7 @@ namespace XCharts.Runtime
             }
         }
 
-        private void UpdateSerieContext()
+        public override void UpdateSerieContext()
         {
             var needCheck = m_LegendEnter || (chart.isPointerInChart && (m_Grid == null || m_Grid.IsPointerEnter()));
 

Runtime/Serie/Serie.cs

@@ -309,6 +309,27 @@ namespace XCharts.Runtime
         [NonSerialized] public List<SerieData> m_FilterData = new List<SerieData>();
         [NonSerialized] private bool m_NameDirty;
 
+        /// <summary>
+        /// event callback when click serie.
+        /// |点击系列时的回调。
+        /// </summary>
+        public Action<SerieEventData> onClick { get; set; }
+        /// <summary>
+        /// event callback when mouse down on serie.
+        /// |鼠标按下时的回调。
+        /// </summary>
+        public Action<SerieEventData> onDown { get; set; }
+        /// <summary>
+        /// event callback when mouse enter serie.
+        /// |鼠标进入时的回调。
+        /// </summary>
+        public Action<SerieEventData> onEnter { get; set; }
+        /// <summary>
+        /// event callback when mouse leave serie.
+        /// |鼠标离开时的回调。
+        /// </summary>
+        public Action<SerieEventData> onExit { get; set; }
+
         /// <summary>
         /// The index of serie.
         /// |系列索引。

Runtime/Serie/SerieContext.cs

@@ -26,6 +26,10 @@ namespace XCharts.Runtime
         /// </summary>
         public int pointerItemDataIndex = -1;
         /// <summary>
+        /// 鼠标当前指示的数据项维度
+        /// </summary>
+        public int pointerItemDataDimension = 1;
+        /// <summary>
         /// 鼠标所在轴线上的数据项索引（可能有多个）
         /// </summary>
         public List<int> pointerAxisDataIndexs = new List<int>();

Runtime/Serie/SerieHandler.cs

@@ -31,14 +31,18 @@ namespace XCharts.Runtime
         public virtual void OnScroll(PointerEventData eventData) { }
         public virtual void RefreshLabelNextFrame() { }
         public virtual void RefreshLabelInternal() { }
+        public virtual void UpdateSerieContext() { }
         public virtual void UpdateTooltipSerieParams(int dataIndex, bool showCategory,
             string category, string marker,
             string itemFormatter, string numericFormatter, string ignoreDataDefaultContent,
-            ref List<SerieParams> paramList, ref string title) { }
+            ref List<SerieParams> paramList, ref string title)
+        { }
         public virtual void OnLegendButtonClick(int index, string legendName, bool show) { }
         public virtual void OnLegendButtonEnter(int index, string legendName) { }
         public virtual void OnLegendButtonExit(int index, string legendName) { }
         internal abstract void SetSerie(Serie serie);
+        public virtual int GetPointerItemDataIndex() { return -1; }
+        public virtual int GetPointerItemDataDimension() { return 1; }
     }
 
     public abstract class SerieHandler<T> : SerieHandler where T : Serie
@@ -121,6 +125,36 @@ namespace XCharts.Runtime
                 serie.ResetInteract();
                 serie.ClearVerticesDirty();
             }
+            UpdateSerieContextInternal();
+        }
+
+        private void UpdateSerieContextInternal()
+        {
+            var lastEnter = serie.context.pointerEnter;
+            var lastDataIndex = serie.context.pointerItemDataIndex;
+            UpdateSerieContext();
+            if (lastEnter != serie.context.pointerEnter || lastDataIndex != serie.context.pointerItemDataIndex)
+            {
+                if (chart.onSerieEnter != null || chart.onSerieExit != null || serie.onEnter != null || serie.onExit != null)
+                {
+                    var dataIndex = GetPointerItemDataIndex();
+                    var dimension = GetPointerItemDataDimension();
+                    var value = serie.GetData(dataIndex, dimension);
+                    var data = SerieEventDataPool.Get(chart.pointerPos, serie.index, dataIndex, dimension, value);
+                    if (serie.context.pointerEnter)
+                    {
+                        if (serie.onEnter != null) serie.onEnter(data);
+                        if (chart.onSerieEnter != null) chart.onSerieEnter(data);
+                    }
+                    else
+                    {
+                        data.dataIndex = lastDataIndex;
+                        if (serie.onExit != null) serie.onExit(data);
+                        if (chart.onSerieExit != null) chart.onSerieExit(data);
+                    }
+                    SerieEventDataPool.Release(data);
+                }
+            }
         }
 
         public override void RefreshLabelNextFrame()
@@ -613,5 +647,47 @@ namespace XCharts.Runtime
             chart.DrawSymbol(vh, symbol.type, symbol.size, 1, pos,
                 color, color, ColorUtil.clearColor32, color, symbol.gap, null);
         }
+
+        public override void OnPointerDown(PointerEventData eventData)
+        {
+            if (serie.onDown == null && chart.onSerieDown == null) return;
+            if (!serie.context.pointerEnter) return;
+            var dataIndex = GetPointerItemDataIndex();
+            if (dataIndex < 0) return;
+            var dimension = GetPointerItemDataDimension();
+            var value = serie.GetData(dataIndex, dimension);
+            var data = SerieEventDataPool.Get(chart.pointerPos, serie.index, dataIndex, dimension, value);
+            if (chart.onSerieDown != null)
+                chart.onSerieDown(data);
+            if (serie.onDown != null)
+                serie.onDown(data);
+            SerieEventDataPool.Release(data);
+        }
+
+        public override void OnPointerClick(PointerEventData eventData)
+        {
+            if (serie.onClick == null && chart.onSerieClick == null) return;
+            if (!serie.context.pointerEnter) return;
+            var dataIndex = GetPointerItemDataIndex();
+            if (dataIndex < 0) return;
+            var dimension = GetPointerItemDataDimension();
+            var value = serie.GetData(dataIndex, dimension);
+            var data = SerieEventDataPool.Get(chart.pointerPos, serie.index, dataIndex, dimension, value);
+            if (chart.onSerieClick != null)
+                chart.onSerieClick(data);
+            if (serie.onClick != null)
+                serie.onClick(data);
+            SerieEventDataPool.Release(data);
+        }
+
+        public override int GetPointerItemDataIndex()
+        {
+            return serie.context.pointerItemDataIndex;
+        }
+
+        public override int GetPointerItemDataDimension()
+        {
+            return serie.context.pointerItemDataDimension;
+        }
     }
 }