Change summary:
- Moved base definition of UK2Node::HasExternalDependencies() up one level to UEdGraphNode (to avoid blind casts in a context where we may not necessarily have a UK2Node subtype).
- Updated subtype headers that override HasExternalDependencies() to relocate the declaration into the class declaration's 'UEdGraphNode overrides' section (for clarity).
- Reverted previous UBlueprintNodeSpawner::ImportTarget solution in favor of using node dependencies; this allows auto-import actions to scale more easily to all existing node subtypes and avoids data duplication.
- Modified SBlueprintActionMenu::OnActionSelected() to utilize the new method for determining which namespace(s) to auto-import after executing a node spawner action in response to a context menu item selection (UE-146803).
- Reverted FBlueprintNamespaceUtilities::GetPropertyValueNamespaces() back to its original 5.0 signature so that it uses a TSet<FString> for the output rather than a TArray<FString>; this fits in better with input to other APIs.
- Renamed FBlueprintEditor::FImportNamespaceParameters to FImportNamespaceExParameters (for clarity).
- Changed the 'FBlueprintEditor::FImportNamespaceParameters::AdditionalNamespaces' member to a TSet<FString> containing *all* namespaces to import rather than limiting to only additional ones.
- Reverted FBlueprintEditor::ImportNamespace() back to its original 5.0 signature and added/implemented FBlueprintEditor::ImportNamespaceEx() as the "extended" version that allows for batched imports and future customizations.
- Revised existing FBlueprintEditor::ImportNamespace() call sites to utilize and/or conform to the extended ImportNamespaceEx() API where appropriate.
#jira UE-146803
#rb Benjamin.Fox
#preflight 623cf3a433709ff50128e8d4
[CL 19505118 by Phillip Kavan in ue5-main branch]
Added a new animation graph node that hosts its own UBlendSpaceBase. Modified UBlendSpaceBase to allow for pose links to be evaluated as the sample points.
The new blend space graphs can be spawned from existing UBlendSpace and UBlendSpace1D assets, or they can be created from scratch, or they can be converted from existing blendspace player nodes via the context menu.
Fixed anim node conversion functions so that their transactions work correctly.
Updated FBlueprintEditorUtils::IsGraphNameUnique to allow it to work with any object as the outer, not just UBlueprint. UBlueprint still has a special case for functions and events. This is to support GenerateUniqueGraphName within a scope (e.g. an outer graph).
Formalized the concept of 'node sub-graphs' (as well as the composite node pattern a little). Previously a number of known node types that contained sub-graphs (e.g. UK2Node_Composite) had special case logic for dealing with node/graph deletion etc. Now any node can opt into this behaviour via the GetSubGraphs() override.
Added status bar readouts for the blendspace grid, so we dont have to stuff the prompts into the tooltip any more.
Moved anim BP related APIs out of FBlueprintEditor. They are always used via FAnimationBlueprintEditor.
Refactored graph title bar widget creation out into a function to allow other document tab factories to create it.
Altered breadcrumb trail click callbacks and SMyBlueprint::ExecuteAction to always JumpToHyperLink rather than calling OpenDocument directly. This allows unknown (to FBlueprintEditor) document types that reference objects to be correctly jumped to using the breadcrumb trail. Derived asset editors (i.e. FAnimationBlueprintEditor) can intercept the JumpToHyperlink call to ensure that the correct document is presented (i.e. the correct tab payload is generated).
Instead of making yet another bunch of duplicated code for handling the various alpha blend options, refactored this into FAnimGraphNodeAlphaOptions (for editor code) and FAnimNodeAlphaOptions (for runtime code).
Added OnCopyTermDefaultsToDefaultObject for per-node copying of default values from editor node to runtime node, rather than another special-case in the compiler.
#rb Jurre.deBaare,Phillip.Kavan
[CL 15177316 by Thomas Sarkanen in ue5-main branch]
Refactored tick record sync into utility structure - FAnimSync. This improves the odd API around tick records, better encapsulating functionality and leaving less for the caller to get wrong. This will also eventually allow this to be refactored out into a scriptable pipeline stage.
Added sync node and scoped sync message for new 'graph based sync'. Nodes that subscribe to graph-based-sync determine their sync group based on the scope that they are in.
Removed 4.26-style sync scopes - pushed all syncing up to the main anim instance. Linked anim instances no longer sync their own tick records.
To make graph based sync more useful, surfaced graph attributes and their visualizations as labels on pins and parallel wires to visualize flow.
This involves statically determining the attribute flow of the graph at compile time. Added a new compiler handler to deal with this new debug data.
Updated a lot of nodes to specify their attributes so graph flow can be correctly visualized.
Added tracing of attributes and sync records and visualization of traced records when debugging the anim graph.
#rb Jurre.deBaare, Martin.Wilson
[CL 14998555 by Thomas Sarkanen in ue5-main branch]
