Method HandleGraphChanged

Source/FlowEditor/Private/Asset/SFlowDiff.cpp:673–718

}

void SFlowDiff::HandleGraphChanged(const FString& GraphPath)
{
	SetCurrentMode(GraphMode);

	UEdGraph* GraphOld = nullptr;
	UEdGraph* GraphNew = nullptr;
	TSharedPtr<TArray<FDiffSingleResult>> DiffResults;
	int32 RealDifferencesStartIndex = INDEX_NONE;
	{
		UEdGraph* NewGraph = GraphToDiff->GetGraphNew();
		UEdGraph* OldGraph = GraphToDiff->GetGraphOld();
		const FString OtherGraphPath = NewGraph ? FGraphDiffControl::GetGraphPath(NewGraph) : FGraphDiffControl::GetGraphPath(OldGraph);
		if (GraphPath.Equals(OtherGraphPath))
		{
			GraphNew = NewGraph;
			GraphOld = OldGraph;
			DiffResults = GraphToDiff->FoundDiffs;
			RealDifferencesStartIndex = GraphToDiff->RealDifferencesStartIndex;
		}
	}

	const TAttribute<int32> FocusedDiffResult = TAttribute<int32>::CreateLambda(
		[this, RealDifferencesStartIndex]()
		{
			int32 FocusedIndex = INDEX_NONE;
			if (RealDifferencesStartIndex != INDEX_NONE)
			{
				FocusedIndex = DiffTreeView::CurrentDifference(DifferencesTreeView.ToSharedRef(), RealDifferences) - RealDifferencesStartIndex;
			}

			// find selected index in all the graphs, and subtract the index of the first entry in this graph
			return FocusedIndex;
		});

	// only regenerate PanelOld if the old graph has changed
	if (PanelOld.FlowAsset && (!PanelOld.GraphEditor.IsValid() || GraphOld != PanelOld.GraphEditor.Pin()->GetCurrentGraph()))
	{
		PanelOld.GeneratePanel(GraphOld, DiffResults, FocusedDiffResult);
	}

	// only regenerate PanelNew if the old graph has changed
	if (PanelNew.FlowAsset && (!PanelNew.GraphEditor.IsValid() || GraphNew != PanelNew.GraphEditor.Pin()->GetCurrentGraph()))
	{
		PanelNew.GeneratePanel(GraphNew, DiffResults, FocusedDiffResult);
	}
}

void SFlowDiff::GenerateDifferencesList()
{