适应窗口大小完成

AIStudio.Wpf.DiagramDesigner/ViewModels/BaseViewModel/DiagramViewModel.cs

@@ -408,7 +408,7 @@ namespace AIStudio.Wpf.DiagramDesigner
             }
         }
 
-        private double _maximumZoomValue = 3;
+        private double _maximumZoomValue = 100;
         [Browsable(false)]
         public double MaximumZoomValue
         {
@@ -422,7 +422,7 @@ namespace AIStudio.Wpf.DiagramDesigner
             }
         }
 
-        private double _minimumZoomValue = 0.5;
+        private double _minimumZoomValue = 0.01;
         [Browsable(false)]
         public double MinimumZoomValue
         {
@@ -463,6 +463,19 @@ namespace AIStudio.Wpf.DiagramDesigner
             }
         }
 
+        private FitViewModel _fitViewModel;
+        public FitViewModel FitViewModel
+        {
+            get
+            {
+                return _fitViewModel;
+            }
+            set
+            {
+                SetProperty(ref _fitViewModel, value);
+            }
+        }
+
         private string _name;
         [Browsable(false)]
         public string Name
@@ -561,6 +574,26 @@ namespace AIStudio.Wpf.DiagramDesigner
             }
         }
 
+        protected ObservableCollection<CinchMenuItem> menuOptions;
+        public IEnumerable<CinchMenuItem> MenuOptions
+        {
+            get
+            {
+                return menuOptions;
+            }
+        }
+
+        public bool ShowMenuOptions
+        {
+            get
+            {
+                if (MenuOptions == null || MenuOptions.Count() == 0)
+                    return false;
+                else
+                    return true;
+            }
+        }
+
         public DiagramOption DiagramOption
         {
             get; set;
@@ -739,7 +772,7 @@ namespace AIStudio.Wpf.DiagramDesigner
         }
 
         private SimpleCommand _selectAllCommand;
-        public virtual SimpleCommand SelectAllCommand
+        public SimpleCommand SelectAllCommand
         {
             get
             {
@@ -748,7 +781,7 @@ namespace AIStudio.Wpf.DiagramDesigner
         }
 
         private SimpleCommand _selectInverseCommand;
-        public virtual SimpleCommand SelectInverseCommand
+        public SimpleCommand SelectInverseCommand
         {
             get
             {
@@ -882,6 +915,33 @@ namespace AIStudio.Wpf.DiagramDesigner
             }
         }
 
+        private SimpleCommand _fitAutoCommand;
+        public SimpleCommand FitAutoCommand
+        {
+            get
+            {
+                return this._fitAutoCommand ?? (this._fitAutoCommand = new SimpleCommand(ExecuteEnable, ExecuteFitAutoCommand));
+            }
+        }
+
+        private SimpleCommand _fitWidthCommand;
+        public SimpleCommand FitWidthCommand
+        {
+            get
+            {
+                return this._fitWidthCommand ?? (this._fitWidthCommand = new SimpleCommand(ExecuteEnable, ExecuteFitWidthCommand));
+            }
+        }
+
+        private SimpleCommand _fitHeightCommand;
+        public SimpleCommand FitHeightCommand
+        {
+            get
+            {
+                return this._fitHeightCommand ?? (this._fitHeightCommand = new SimpleCommand(ExecuteEnable, ExecuteFitHeightCommand));
+            }
+        }
+
         private SimpleCommand _groupCommand;
         public SimpleCommand GroupCommand
         {
@@ -991,6 +1051,7 @@ namespace AIStudio.Wpf.DiagramDesigner
             AllowDrop = diagramItem.AllowDrop;
 
             Init();
+            BuildMenuOptions();
         }
 
         public virtual void Init()
@@ -1003,6 +1064,18 @@ namespace AIStudio.Wpf.DiagramDesigner
             return IsReadOnly == false;
         }
 
+        #region 菜单
+        private void BuildMenuOptions()
+        {
+            menuOptions = new ObservableCollection<CinchMenuItem>();
+            CinchMenuItem menuItem = new CinchMenuItem();
+            menuItem.Text = "居中";
+            menuItem.Command = CenterMoveCommand;
+            menuItem.CommandParameter = this;
+            menuOptions.Add(menuItem);
+        }
+        #endregion
+
         #region UnDo ReDo
 
         private void Do(object sender, string propertyName, object newvalue)
@@ -2250,7 +2323,7 @@ namespace AIStudio.Wpf.DiagramDesigner
             }
         }
 
-        private void ExecuteCenterMoveCommand(object parameter)
+        protected virtual void ExecuteCenterMoveCommand(object parameter)
         {
             IEnumerable<DesignerItemViewModelBase> selectedItems;
             if (parameter is IEnumerable<DesignerItemViewModelBase> para)
@@ -2267,6 +2340,8 @@ namespace AIStudio.Wpf.DiagramDesigner
                 item.Left = (PageSize.Width - item.ItemWidth) / 2;
                 item.Top = (PageSize.Height - item.ItemHeight) / 2;
             }
+
+            FitViewModel = new FitViewModel() { BoundingRect = DiagramViewModelHelper.GetBoundingRectangle(selectedItems) };
         }
 
         public void UpdateZIndex()
@@ -2329,6 +2404,23 @@ namespace AIStudio.Wpf.DiagramDesigner
 
         #endregion
 
+        #region 适应大小
+        private void ExecuteFitAutoCommand(object parameter)
+        {
+            FitViewModel = new FitViewModel() { BoundingRect = DiagramViewModelHelper.GetBoundingRectangle(Items.OfType<DesignerItemViewModelBase>()), FitMode = FitMode.FitAuto };
+        }
+
+        private void ExecuteFitWidthCommand(object parameter)
+        {
+            FitViewModel = new FitViewModel() { BoundingRect = DiagramViewModelHelper.GetBoundingRectangle(Items.OfType<DesignerItemViewModelBase>()), FitMode = FitMode.FitWidth };
+        }
+
+        private void ExecuteFitHeightCommand(object parameter)
+        {
+            FitViewModel = new FitViewModel() { BoundingRect = DiagramViewModelHelper.GetBoundingRectangle(Items.OfType<DesignerItemViewModelBase>()), FitMode = FitMode.FitHeight };
+        }
+        #endregion
+
         #region 分组
         private void ExecuteGroupCommand(object parameter)
         {