重新规划Helper类的功能与结构

DeedyDesigner/Deedy.Activity/ActionViewer.cs

@@ -618,7 +618,7 @@ namespace Deedy.Activity
                     if (withExitline.ExitlinePosition.HasFlag(ExitlinePosition.Rightlower))
                         this.ShowRightExitline = Visibility.Visible;
                     // 新元素被托管渲染后调整子元素退出线位置
-                    withExitline.AdjustExitlinePosition();
+                    withExitline.Help_AdjustExitlinePosition();
                 }
 
                 if (newValue is ILogicController logicController)
@@ -646,7 +646,7 @@ namespace Deedy.Activity
                 this.ElementCount = combined.Elements.Count;
             }
             // 节点集合变更时调整退出线位置
-            if (this.ActionElement is IContainerWithExitline container) container.AdjustExitlinePosition();
+            if (this.ActionElement is IContainerWithExitline container) container.Help_AdjustExitlinePosition();
         }
 
         protected virtual void ActionElement_PropertyChanged(object? sender, PropertyChangedEventArgs e)
@@ -662,7 +662,7 @@ namespace Deedy.Activity
                     break;
                 case nameof(IContainerWithExitline.ExitlinePosition):
                     // 自身退出线变更时调整所有子节点退出线位置
-                    (this.ActionElement as IContainerWithExitline)?.AdjustExitlinePosition();
+                    (this.ActionElement as IContainerWithExitline)?.Help_AdjustExitlinePosition();
                     break;
                 default: break;
             }