Add cutting of content items.

Source/Editor/Content/GUI/ContentView.cs

@@ -61,6 +61,8 @@ namespace FlaxEditor.Content.GUI
         private bool _isRubberBandSpanning;
         private Float2 _mousePressLocation;
         private Rectangle _rubberBandRectangle;
+        private bool _isCutting;
+        private List<ContentItem> _cutItems = new List<ContentItem>();
 
         private bool _validDragOver;
         private DragActors _dragActors;
@@ -83,9 +85,9 @@ namespace FlaxEditor.Content.GUI
         public event Action<List<ContentItem>> OnDelete;
 
         /// <summary>
-        /// Called when user wants to paste the files/folders.
+        /// Called when user wants to paste the files/folders. Bool is for cutting.
         /// </summary>
-        public event Action<string[]> OnPaste;
+        public event Action<string[], bool> OnPaste;
 
         /// <summary>
         /// Called when user wants to duplicate the item(s).
@@ -210,6 +212,15 @@ namespace FlaxEditor.Content.GUI
                 }),
                 new InputActionsContainer.Binding(options => options.Copy, Copy),
                 new InputActionsContainer.Binding(options => options.Paste, Paste),
+                new InputActionsContainer.Binding(options => options.Cut, Cut),
+                new InputActionsContainer.Binding(options => options.Undo, () =>
+                {
+                    if (_isCutting)
+                    {
+                        _isCutting = false;
+                        UpdateContentItemCut(false);
+                    }
+                }),
                 new InputActionsContainer.Binding(options => options.Duplicate, Duplicate),
             });
         }
@@ -462,6 +473,7 @@ namespace FlaxEditor.Content.GUI
         /// </summary>
         public void Duplicate()
         {
+            UpdateContentItemCut(false);
             OnDuplicate?.Invoke(_selection);
         }
 
@@ -475,6 +487,7 @@ namespace FlaxEditor.Content.GUI
 
             var files = _selection.ConvertAll(x => x.Path).ToArray();
             Clipboard.Files = files;
+            UpdateContentItemCut(false);
         }
 
         /// <summary>
@@ -496,7 +509,36 @@ namespace FlaxEditor.Content.GUI
             if (files == null || files.Length == 0)
                 return;
 
-            OnPaste?.Invoke(files);
+            OnPaste?.Invoke(files, _isCutting);
+            UpdateContentItemCut(false);
+        }
+
+        /// <summary>
+        /// Cuts the items.
+        /// </summary>
+        public void Cut()
+        {
+            Copy();
+            UpdateContentItemCut(true);
+        }
+
+        private void UpdateContentItemCut(bool cut)
+        {
+            _isCutting = cut;
+  
+            // Add selection to cut list
+            if (cut)
+                _cutItems.AddRange(_selection);
+            
+            // Update item with if it is being cut.
+            foreach (var item in _cutItems)
+            {
+                item.IsBeingCut = cut;
+            }
+            
+            // Clean up cut items
+            if (!cut)
+                _cutItems.Clear();
         }
 
         /// <summary>

Source/Editor/Content/Items/ContentItem.cs

@@ -182,6 +182,11 @@ namespace FlaxEditor.Content
         /// </summary>
         public const int DefaultHeight = (DefaultThumbnailSize + 2 * DefaultMarginSize + DefaultTextHeight);
 
+        /// <summary>
+        /// Whether the item is being but.
+        /// </summary>
+        public bool IsBeingCut;
+
         private ContentFolder _parentFolder;
 
         private bool _isMouseDown;
@@ -747,6 +752,12 @@ namespace FlaxEditor.Content
             Render2D.PushClip(ref textRect);
             Render2D.DrawText(style.FontMedium, ShowFileExtension || view.ShowFileExtensions ? FileName : ShortName, textRect, style.Foreground, nameAlignment, TextAlignment.Center, TextWrapping.WrapWords, 1f, 0.95f);
             Render2D.PopClip();
+
+            if (IsBeingCut)
+            {
+                var color = style.LightBackground.AlphaMultiplied(0.5f);
+                Render2D.FillRectangle(clientRect, color);
+            }
         }
 
         /// <inheritdoc />

Source/Editor/Windows/ContentWindow.ContextMenu.cs

@@ -128,11 +128,9 @@ namespace FlaxEditor.Windows
                 else
                 {
                     cm.AddButton("Delete", () => Delete(item));
-
                     cm.AddSeparator();
-
                     cm.AddButton("Duplicate", _view.Duplicate);
-
+                    cm.AddButton("Cut", _view.Cut);
                     cm.AddButton("Copy", _view.Copy);
                 }
 

Source/Editor/Windows/ContentWindow.cs

@@ -741,7 +741,8 @@ namespace FlaxEditor.Windows
         /// Pastes the specified files.
         /// </summary>
         /// <param name="files">The files paths to import.</param>
-        public void Paste(string[] files)
+        /// <param name="isCutting">Whether a cutting action is occuring.</param>
+        public void Paste(string[] files, bool isCutting)
         {
             var importFiles = new List<string>();
             foreach (var sourcePath in files)
@@ -752,7 +753,10 @@ namespace FlaxEditor.Windows
                     var newPath = StringUtils.NormalizePath(Path.Combine(CurrentViewFolder.Path, item.FileName));
                     if (sourcePath.Equals(newPath))
                         newPath = GetClonedAssetPath(item);
-                    Editor.ContentDatabase.Copy(item, newPath);
+                    if (isCutting)
+                        Editor.ContentDatabase.Move(item, newPath);
+                    else
+                        Editor.ContentDatabase.Copy(item, newPath);
                 }
                 else
                     importFiles.Add(sourcePath);