适应窗口大小完成

AIStudio.Wpf.Mind/ViewModels/MindDiagramViewModel.cs

@@ -589,7 +589,7 @@ namespace AIStudio.Wpf.Mind.ViewModels
                 return false;
             }
 
-            nodes = nodes.Except(new List<MindNode>{ RootItem }).ToList();
+            nodes = nodes.Except(new List<MindNode> { RootItem }).ToList();
 
             if (nodes.Any())
             {
@@ -597,14 +597,14 @@ namespace AIStudio.Wpf.Mind.ViewModels
                 DoCommandManager.DoNewCommand(this.ToString(),
                   () => {
                       foreach (var node in nodes)
-                      {                          
-                          node.ParentNode.RemoveChild(node, true);                         
+                      {
+                          node.ParentNode.RemoveChild(node, true);
                       }
                       RootItem.LayoutUpdated();
                   },
                   () => {
                       foreach (var node in nodes)
-                      {                          
+                      {
                           node.ParentNode.AddChild(node, indexs[node]);
                       }
                       RootItem.LayoutUpdated();
@@ -615,54 +615,62 @@ namespace AIStudio.Wpf.Mind.ViewModels
                 return false;
         }
 
+        protected override void ExecuteCenterMoveCommand(object parameter)
+        {
+            RootItem.Left = (PageSize.Width - RootItem.ItemWidth) / 2;
+            RootItem.Top = (PageSize.Height - RootItem.ItemHeight) / 2;
+            RootItem?.LayoutUpdated();
+            FitViewModel = new FitViewModel() { BoundingRect = RootItem.GetBounds() };
+        }
+
         private void ExecuteAddLinkCommand(object obj)
         {
-            
+
         }
 
         private void ExecuteRemoveLinkCommand(object obj)
         {
-            
+
         }
 
         private void ExecuteAddImageCommand(object obj)
         {
-            
+
         }
 
         private void ExecuteRemoveImageCommand(object obj)
         {
-            
+
         }
 
         private void ExecuteAddRemarkCommand(object obj)
         {
-            
+
         }
 
         private void ExecuteRemoveRemarkCommand(object obj)
         {
-            
+
         }
 
         private void ExecuteAddPriorityCommand(object obj)
         {
-            
+
         }
 
         private void ExecuteAddRatioCommand(object obj)
         {
-            
+
         }
 
         private void ExecuteAddTagCommand(object obj)
         {
-            
+
         }
 
         private void ExecuteRemoveTagCommand(object obj)
         {
-            
+
         }
 
         private void ExecutedChangeMindTypeCommand(object obj)
@@ -720,7 +728,7 @@ namespace AIStudio.Wpf.Mind.ViewModels
                       RootItem.LayoutUpdated();
                   },
                   () => {
-                     //ToDo
+                      //ToDo
                   });
             }
         }
@@ -729,7 +737,7 @@ namespace AIStudio.Wpf.Mind.ViewModels
         {
             if (parameter is MindNode node)
             {
-              
+
             }
             else
             {
@@ -738,43 +746,43 @@ namespace AIStudio.Wpf.Mind.ViewModels
 
             if (node != null)
             {
-            
+
             }
         }
 
         private void ExecutedPasteThemeCommand(object parameter)
         {
-            
+
         }
 
         private void ExecutedExpand2Level1Command(object obj)
         {
-            
+
         }
 
         private void ExecutedExpand2Level2Command(object obj)
         {
-            
+
         }
 
         private void ExecutedExpand2Level3Command(object obj)
         {
-            
+
         }
 
         private void ExecutedExpand2Level4Command(object obj)
         {
-            
+
         }
 
         private void ExecutedExpand2Level5Command(object obj)
         {
-            
+
         }
 
         private void ExecutedExpand2Level6Command(object obj)
         {
-            
+
         }
         #endregion
         protected override void ExecutedResetLayoutCommand(object obj)