增加「Help_DrawDropAdorner」的通用性
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		@@ -35,6 +35,6 @@ namespace Deedy.Activity
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        }
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        protected override void OnRender(DrawingContext drawingContext)
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            => this.Help_DrawDropAdorner(drawingContext, this.DropPlacement, this.LayoutDirection, _Pen, _Brush);
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            => drawingContext.Help_DrawDropAdorner(this.AdornedElement.RenderSize, this.DropPlacement, this.LayoutDirection, _Pen, _Brush);
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    }
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}
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@@ -20,18 +20,16 @@ namespace Deedy.Activity
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        /// <summary>
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        /// 辅助可视化单元进行拖放装饰器绘制操作
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        /// </summary>
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        /// <param name="ui">要绘制的「UIElement」元素</param>
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        /// <param name="dc">「UIElement」元素的绘图上下文</param>
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        /// <param name="dropPlacement">拖放操作的放置位置</param>
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        /// <param name="parentLayoutDirection">父级布局的布局方向</param>
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        public static void Help_DrawDropAdorner(this UIElement ui, DrawingContext dc,
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        public static void Help_DrawDropAdorner(this DrawingContext dc,Size size,
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            DropPlacement dropPlacement, LayoutDirection? parentLayoutDirection,
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            Pen? _Pen = null, Brush? _Brush = null)
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        {
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            if (ui == null || dc == null || dropPlacement == DropPlacement.UnDragged) return;
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            if (dc == null || dropPlacement == DropPlacement.UnDragged) return;
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            Pen pen = _Pen ?? new Pen(Brushes.Transparent, 0);
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            Brush brush = _Brush ?? new SolidColorBrush(Colors.Red) { Opacity = 0.5 };
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            Size size = ui.RenderSize;
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            ThemeResources res = new();
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            switch (dropPlacement)
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