chore: import upstream snapshot with attribution

2026-07-13 13:13:17 +08:00
commit 58ab8315aa
8961 changed files with 5602567 additions and 0 deletions
@@ -0,0 +1,79 @@
+#nullable enable
+using System.IO;
+using Newtonsoft.Json;
+using T3.Core.Model;
+using T3.Core.Operator;
+using T3.Editor.UiModel.Commands;
+using T3.Editor.UiModel.Commands.Graph;
+using T3.Editor.UiModel.ProjectHandling;
+using Vector2 = System.Numerics.Vector2;
+
+// ReSharper disable ForeachCanBeConvertedToQueryUsingAnotherGetEnumerator
+// ReSharper disable ForeachCanBePartlyConvertedToQueryUsingAnotherGetEnumerator
+
+namespace T3.Editor.UiModel.Modification;
+
+internal static class GraphOperations
+{
+    public static SymbolUi.Child AddSymbolChild(Symbol symbol, SymbolUi parentUi, Vector2 positionOnCanvas)
+    {
+        var addCommand = new AddSymbolChildCommand(parentUi.Symbol, symbol.Id) { PosOnCanvas = positionOnCanvas };
+        UndoRedoStack.AddAndExecute(addCommand);
+            
+        var parentSymbol = parentUi.Symbol;
+        var newSymbolChild = parentSymbol.Children[addCommand.AddedChildId];
+
+        // Select new node
+        return newSymbolChild.GetChildUi();
+    }
+
+    public static bool TryCopyNodesAsJson(Instance composition, 
+                                          IEnumerable<SymbolUi.Child> selectedChildren, 
+                                          List<Section> selectedSections, out string resultJsonString)
+    {
+        resultJsonString = string.Empty;
+        
+        if (ProjectView.Focused == null)
+            return false;
+        
+        var package = ProjectView.Focused.OpenedProject.Package;
+        if (!package.TryCreateNewSymbol<object>(out var newContainerUi))
+        {
+            Log.Error($"Failed to copy nodes to clipboard. Could not create new symbol.");
+            return false;
+        }
+            
+        var cmd = new CopySymbolChildrenCommand(composition.GetSymbolUi(),
+                                                selectedChildren.ToList(),
+                                                selectedSections,
+                                                newContainerUi,
+                                                Vector2.Zero,
+                                                copyMode: CopySymbolChildrenCommand.CopyMode.ClipboardTarget);
+        cmd.Do();
+            
+        using (var writer = new StringWriter())
+        {
+            var jsonWriter = new JsonTextWriter(writer);
+            jsonWriter.WriteStartArray();
+            SymbolJson.WriteSymbol(newContainerUi.Symbol, jsonWriter);
+            SymbolUiJson.WriteSymbolUi(newContainerUi, jsonWriter);
+            jsonWriter.WriteEndArray();
+                
+            try
+            {
+                resultJsonString = writer.ToString();
+            }
+            catch (Exception)
+            {
+                Log.Error("Could not copy elements to clipboard. Perhaps a tool like TeamViewer locks it.");
+                    
+                // remove symbol from package as it is only temporary
+                package.RemoveSymbolUi(newContainerUi);
+                return false;
+            }
+        }
+            
+        package.RemoveSymbolUi(newContainerUi);
+        return true;
+    }
+}