增加Serie的Label的formatter支持{index}通配符

Runtime/Component/Label/SerieLabelHelper.cs

@@ -53,6 +53,22 @@ namespace XCharts.Runtime
             }
         }
 
+        public static string GetTitleFormatterContent(Serie serie, SerieData serieData,
+            int dataIndex, LabelStyle titleStyle, BaseChart chart)
+        {
+            string content;
+            if (string.IsNullOrEmpty(titleStyle.formatter))
+            {
+                content = serieData.name;
+            }
+            else
+            {
+                content = titleStyle.formatter;
+                FormatterHelper.ReplaceContent(ref content, dataIndex, titleStyle.numericFormatter, serie, chart, null, serieData);
+            }
+            return content;
+        }
+
         public static void SetGaugeLabelText(Serie serie)
         {
             var serieData = serie.GetSerieData(0);

Runtime/Helper/FormatterHelper.cs

@@ -37,7 +37,7 @@ namespace XCharts.Runtime
         /// <param name="category">选中的类目，一般用在折线图和柱状图</param>
         /// <returns></returns>
         public static bool ReplaceContent(ref string content, int dataIndex, string numericFormatter, Serie serie,
-            BaseChart chart, string colorName = null)
+            BaseChart chart, string colorName = null, SerieData serieData = null)
         {
             var foundDot = false;
             var mc = s_Regex.Matches(content);
@@ -112,7 +112,7 @@ namespace XCharts.Runtime
                     }
                     else
                     {
-                        var serieData = serie.GetSerieData(bIndex);
+                        serieData = serie.GetSerieData(bIndex);
                         content = content.Replace(old, serieData.name);
                     }
                 }
@@ -207,6 +207,10 @@ namespace XCharts.Runtime
                     }
                 }
             }
+            if (serieData != null)
+            {
+                ReplaceIndexContent(ref content, serie.useSortData ? serieData.sortIndex : serieData.index, serie.dataCount);
+            }
             content = s_RegexNewLine.Replace(content, PH_NN);
             return foundDot;
         }
@@ -310,7 +314,10 @@ namespace XCharts.Runtime
                     }
                 }
             }
-            ReplaceIndexContent(ref content, sortData ? serieData.sortIndex : serieData.index, dataCount);
+            if (serieData != null)
+            {
+                ReplaceIndexContent(ref content, sortData ? serieData.sortIndex : serieData.index, dataCount);
+            }
             content = TrimAndReplaceLine(content);
         }
 

Runtime/Serie/SerieHandler.cs

@@ -432,17 +432,8 @@ namespace XCharts.Runtime
                 if (titleStyle != null)
                 {
                     var color = chart.GetItemColor(serie, null);
-                    var content = string.Empty;
+                    var content = SerieLabelHelper.GetTitleFormatterContent(serie, null, -1, titleStyle, chart);
-                    if (string.IsNullOrEmpty(titleStyle.formatter))
+                    var label = ChartHelper.AddChartLabel("title_0", serieTitleRoot.transform, titleStyle, chart.theme.common,
-                    {
-                        content = serie.serieName;
-                    }
-                    else
-                    {
-                        content = titleStyle.formatter;
-                        FormatterHelper.ReplaceContent(ref content, -1, titleStyle.numericFormatter, serie, chart);
-                    }
-                    var label = ChartHelper.AddChartLabel("title_" + 0, serieTitleRoot.transform, titleStyle, chart.theme.common,
                         content, color, TextAnchor.MiddleCenter);
                     serie.context.titleObject = label;
                     label.SetActive(titleStyle.show, true);
@@ -461,16 +452,7 @@ namespace XCharts.Runtime
                     if (titleStyle == null) continue;
                     m_InitTitleLabel = true;
                     var color = chart.GetItemColor(serie, serieData);
-                    var content = string.Empty;
+                    var content = SerieLabelHelper.GetTitleFormatterContent(serie, serieData, i, titleStyle, chart);
-                    if (string.IsNullOrEmpty(titleStyle.formatter))
-                    {
-                        content = serieData.name;
-                    }
-                    else
-                    {
-                        content = titleStyle.formatter;
-                        FormatterHelper.ReplaceContent(ref content, i, titleStyle.numericFormatter, serie, chart);
-                    }
                     var label = ChartHelper.AddChartLabel("title_" + i, serieTitleRoot.transform, titleStyle, chart.theme.common,
                         content, color, TextAnchor.MiddleCenter);
                     serieData.titleObject = label;
@@ -493,6 +475,8 @@ namespace XCharts.Runtime
                     var labelPosition = GetSerieDataTitlePosition(null, titleStyle);
                     var offset = titleStyle.GetOffset(serie.context.insideRadius);
                     serie.context.titleObject.SetPosition(labelPosition + offset);
+                    var content = SerieLabelHelper.GetTitleFormatterContent(serie, null, -1, titleStyle, chart);
+                    serie.context.titleObject.SetText(content);
                 }
             }
             else
@@ -506,6 +490,8 @@ namespace XCharts.Runtime
                     var labelPosition = GetSerieDataTitlePosition(serieData, titleStyle);
                     var offset = titleStyle.GetOffset(serie.context.insideRadius);
                     serieData.titleObject.SetPosition(labelPosition + offset);
+                    var content = SerieLabelHelper.GetTitleFormatterContent(serie, serieData, i, titleStyle, chart);
+                    serieData.titleObject.SetText(content);
                 }
             }
         }