页面编辑-调整页面编辑多选逻辑

PDF Office/ViewModels/PageEdit/PageEditContentViewModel.cs

@@ -624,6 +624,8 @@ namespace PDF_Office.ViewModels.PageEdit
             {
                 PageEditItems[i].ItemSize = newsize;
             }
+            //缩略图模式 调整item大小的时候，更新选中项
+            NotifyUIToRefresh(new List<int>() { PDFViewer.CurrentIndex + 1 });
         }
 
         private bool CanZoomIn()

PDF Office/Views/PageEdit/PageEditContent.xaml.cs

@@ -343,7 +343,8 @@ namespace PDF_Office.Views.PageEdit
                     }
                     var scroll = GetScrollHost(ListPageEdit);
 
-                    string tempPath = System.IO.Path.Combine(System.IO.Path.GetTempPath(), "Temp.pdf");
+                    string filename = Guid.NewGuid().ToString() + ".pdf";
+                    string tempPath = System.IO.Path.Combine(System.IO.Path.GetTempPath(), filename);
                     System.IO.File.Create(tempPath);
                     string[] files = new string[1];
                     files[0] = tempPath;
@@ -398,12 +399,43 @@ namespace PDF_Office.Views.PageEdit
             }
             //选中了item 时，不能框选
             startChoose = false;
+
+            //更改系统的选中规则，选中状态下，鼠标松开后取消选中
+            //方便实现多选拖拽功能
+            if (listBoxItem.IsSelected == true && !Keyboard.IsKeyDown(Key.LeftCtrl))
+            {
+                e.Handled = true;
+            }
         }
 
         private void ListPageEdit_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
         {
-            startChoose = false;
+            var pos = e.GetPosition(ListPageEdit);
+            HitTestResult result = VisualTreeHelper.HitTest(ListPageEdit, pos);
+            if (result == null)
+            {
+                return;
+            }
+
+            var listBoxItem = CommonHelper.FindVisualParent<ListBoxItem>(result.VisualHit);
+            if (listBoxItem == null)
+            {
+                return;
+            }
+
+            //更改系统默认的选中规则，多选后，鼠标单击抬起后再选中单个
+            //拖拽框选之后的抬起鼠标不进入处理
+            if (!startChoose&&!Keyboard.IsKeyDown(Key.LeftCtrl) && !Keyboard.IsKeyDown(Key.LeftShift))
+            {
+                ListPageEdit.SelectedItems.Clear();
+                ListPageEdit.SelectedItem = listBoxItem;
+                listBoxItem.IsSelected = true;
+                return;
+            }
+
             Mouse.Capture(null);
+            //结束鼠标框选
+            startChoose = false;
             RectChoose.Visibility = Visibility.Collapsed;
         }
 
@@ -420,7 +452,7 @@ namespace PDF_Office.Views.PageEdit
         }
 
         /// <summary>
-        ///根据鼠标拖选的框 选中里面的Item
+        ///根据鼠标拖选的框 选中矩形框里面的Item
         /// </summary>
         private void DoSelectItems()
         {