dd

Wpf_AiSportsMicrospace/Home.xaml

@@ -2,7 +2,7 @@
       xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
       xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
       xmlns:local="clr-namespace:Wpf_AiSportsMicrospace.MyUserControl"
-        Title="Home" Height="400" Width="800" Loaded="Window_Loaded">
+        Title="Home" Height="600" Width="800" Loaded="Window_Loaded">
     <Grid>
         <local:CoverFlowControl x:Name="coverFlow" HorizontalAlignment="Center" VerticalAlignment="Center"/>
     </Grid>

Wpf_AiSportsMicrospace/MyUserControl/CoverFlowItem.cs

@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace Wpf_AiSportsMicrospace.MyUserControl
+{
+    public class CoverFlowItem : DependencyObject
+    {
+        public Uri ImageUri { get; set; }
+
+        public double Progress
+        {
+            get => (double)GetValue(ProgressProperty);
+            set => SetValue(ProgressProperty, value);
+        }
+
+        public static readonly DependencyProperty ProgressProperty =
+            DependencyProperty.Register(nameof(Progress), typeof(double), typeof(CoverFlowItem), new PropertyMetadata(0.0));
+    }
+}

Wpf_AiSportsMicrospace/MyUserControl/ProgressToRectangleGeometryConverter.cs

@@ -0,0 +1,75 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Data;
+using System.Windows.Media;
+
+namespace Wpf_AiSportsMicrospace.MyUserControl
+{
+    public class ProgressToRectangleGeometryConverter : IValueConverter
+    {
+        // parameter: "width,height"
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            double progress = (double)value;
+            string[] sizes = parameter.ToString().Split(',');
+            double width = double.Parse(sizes[0]);
+            double height = double.Parse(sizes[1]);
+
+            var geo = new StreamGeometry();
+            using (var ctx = geo.Open())
+            {
+                ctx.BeginFigure(new Point(0, 0), false, false);
+
+                double total = 2 * (width + height);
+                double len = progress * total;
+
+                // 上边
+                if (len <= width)
+                {
+                    ctx.LineTo(new Point(len, 0), true, true);
+                    return geo;
+                }
+                ctx.LineTo(new Point(width, 0), true, true);
+                len -= width;
+
+                // 右边
+                if (len <= height)
+                {
+                    ctx.LineTo(new Point(width, len), true, true);
+                    return geo;
+                }
+                ctx.LineTo(new Point(width, height), true, true);
+                len -= height;
+
+                // 下边
+                if (len <= width)
+                {
+                    ctx.LineTo(new Point(width - len, height), true, true);
+                    return geo;
+                }
+                ctx.LineTo(new Point(0, height), true, true);
+                len -= width;
+
+                // 左边
+                if (len <= height)
+                {
+                    ctx.LineTo(new Point(0, height - len), true, true);
+                }
+                else
+                {
+                    ctx.LineTo(new Point(0, 0), true, true);
+                }
+            }
+            geo.Freeze();
+            return geo;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+            => throw new NotImplementedException();
+    }
+}