feat: 为抽卡记录界面添加鼠标左键拖动横向滚动功能

src/Starward/Features/Gacha/GachaLogPage.xaml

@@ -310,7 +310,11 @@
 
             <ScrollViewer x:Name="ScrollViewer_GachaStats"
                           ScrollViewer.HorizontalScrollBarVisibility="Auto"
-                          ScrollViewer.HorizontalScrollMode="Auto">
+                          ScrollViewer.HorizontalScrollMode="Auto"
+                          PointerPressed="ScrollViewer_GachaStats_PointerPressed"
+                          PointerMoved="ScrollViewer_GachaStats_PointerMoved"
+                          PointerReleased="ScrollViewer_GachaStats_PointerReleased"
+                          PointerExited="ScrollViewer_GachaStats_PointerExited">
                 <Grid x:Name="Grid_GachaStats"
                       Margin="20,0,20,16"
                       Background="Transparent">

src/Starward/Features/Gacha/GachaLogPage.xaml.cs

@@ -5,6 +5,7 @@
 using Microsoft.UI.Input;
 using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Controls;
+using Microsoft.UI.Xaml.Input;
 using Microsoft.UI.Xaml.Media;
 using Microsoft.UI.Xaml.Media.Imaging;
 using Microsoft.UI.Xaml.Navigation;
@@ -25,6 +26,7 @@
 using System.Threading;
 using System.Threading.Tasks;
 using Vanara.PInvoke;
+using Windows.Foundation;
 using Windows.Storage;
 using Windows.System;
 
@@ -44,6 +46,13 @@ public sealed partial class GachaLogPage : PageBase
     private GachaLogService _gachaLogService;
 
 
+    private bool _isDragging;
+
+    private Point _dragStartPoint;
+
+    private double _dragStartHorizontalOffset;
+
+
 
     public GachaLogPage()
     {
@@ -197,6 +206,57 @@ private void Grid_GachaStats_PointerWheelChanged(object sender, Microsoft.UI.Xam
 
 
 
+    private void ScrollViewer_GachaStats_PointerPressed(object sender, PointerRoutedEventArgs e)
+    {
+        if (sender is not ScrollViewer scrollViewer) return;
+        // 仅响应左键按下
+        var pointerPoint = e.GetCurrentPoint(scrollViewer);
+        if (!pointerPoint.Properties.IsLeftButtonPressed) return;
+        _isDragging = true;
+        _dragStartPoint = pointerPoint.Position;
+        _dragStartHorizontalOffset = scrollViewer.HorizontalOffset;
+        scrollViewer.CapturePointer(e.Pointer);
+    }
+
+
+
+    private void ScrollViewer_GachaStats_PointerMoved(object sender, PointerRoutedEventArgs e)
+    {
+        if (!_isDragging || sender is not ScrollViewer scrollViewer) return;
+        var pointerPoint = e.GetCurrentPoint(scrollViewer);
+        if (!pointerPoint.Properties.IsLeftButtonPressed) return;
+        // 计算偏移
+        double deltaX = _dragStartPoint.X - pointerPoint.Position.X;
+        double targetOffset = _dragStartHorizontalOffset + deltaX;
+        // 限制滚动边界
+        targetOffset = Math.Max(0, Math.Min(targetOffset, scrollViewer.ScrollableWidth));
+        scrollViewer.ChangeView(targetOffset, null, null, true);
+    }
+
+
+
+    private void ScrollViewer_GachaStats_PointerReleased(object sender, PointerRoutedEventArgs e)
+    {
+        ResetDragState(sender as ScrollViewer, e);
+    }
+
+
+
+    private void ScrollViewer_GachaStats_PointerExited(object sender, PointerRoutedEventArgs e)
+    {
+        ResetDragState(sender as ScrollViewer, e);
+    }
+
+
+
+    private void ResetDragState(ScrollViewer? scrollViewer, PointerRoutedEventArgs e)
+    {
+        _isDragging = false;
+        scrollViewer?.ReleasePointerCapture(e.Pointer);
+    }
+
+
+
     private async Task UpdateWikiDataAsync()
     {
         try