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f9a2806cb4
- Disallow removing required I/O from MetasoundSources - Add functions to expose/iterate required I/O archetypes from Frontend - Enable copy graph nodes using JSON MS Document Schema and pruning unused nodes - Mock in paste code (Ethan to add validation or "fix-up" logic on MSDoc side to avoid duplication of node/I/O Ids, names, etc.) #rb ethan.geller #jira UEAU-547 [CL 14038324 by Rob Gay in ue5-main branch]
91 lines
3.4 KiB
C++
91 lines
3.4 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "MetasoundFrontend.h"
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#include "MetasoundFrontendDataLayout.h"
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#include "MetasoundFrontendBaseClasses.h"
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#include "MetasoundGraph.h"
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#include "UObject/WeakObjectPtrTemplates.h"
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class UEdGraph;
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class METASOUNDFRONTEND_API FMetasoundAssetBase
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{
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public:
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static const FString FileExtension;
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FMetasoundAssetBase();
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FMetasoundAssetBase(FMetasoundDocument& InDocument);
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virtual ~FMetasoundAssetBase() = default;
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#if WITH_EDITORONLY_DATA
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// Returns the graph associated with this Metasound. Graph is required to be referenced on
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// Metasound UObject for editor serialization purposes.
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// @return Editor graph associated with this metasound uobject.
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virtual UEdGraph* GetGraph() = 0;
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virtual const UEdGraph* GetGraph() const = 0;
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virtual UEdGraph& GetGraphChecked() = 0;
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virtual const UEdGraph& GetGraphChecked() const = 0;
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// Sets the graph associated with this Metasound. Graph is required to be referenced on
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// Metasound UObject for editor serialization purposes.
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// @param Editor graph associated with this metasound object.
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virtual void SetGraph(UEdGraph* InGraph) = 0;
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#endif // WITH_EDITORONLY_DATA
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// Sets/overwrites the root class metadata
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virtual void SetMetadata(FMetasoundClassMetadata& InMetadata);
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// Returns a description of the required inputs and outputs for this metasound UClass.
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virtual FMetasoundArchetype GetArchetype() const = 0;
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// Returns the root class metadata
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FMetasoundClassMetadata GetMetadata();
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// Imports data from a JSON string directly
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bool ImportFromJSON(const FString& InJSON);
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// Imports the asset from a JSON file at provided path
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bool ImportFromJSONAsset(const FString& InAbsolutePath);
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// Returns handle for the root metasound graph of this asset.
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Metasound::Frontend::FGraphHandle GetRootGraphHandle() const;
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// Returns all handles for subgraphs referenced
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TArray<Metasound::Frontend::FGraphHandle> GetAllSubgraphHandles();
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// Overwrites the entire document and fixes it up based on any
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// inputs or outputs in the archetype that are missing from the graph.
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void SetDocument(const FMetasoundDocument& InDocument);
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// This must be called on UObject::PostLoad, as well as in this asset's UFactory, to fix up the root document based on the most recent version of the archetype.
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void ConformDocumentToArchetype();
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protected:
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// Returns private token allowing implementing asset class to use graph/node handle system
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static Metasound::Frontend::FHandleInitParams::EPrivateToken GetPrivateToken()
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{
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return Metasound::Frontend::FHandleInitParams::PrivateToken;
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}
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// Returns document object responsible for serializing asset
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virtual FMetasoundDocument& GetDocument() = 0;
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// Returns document object responsible for serializing asset
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virtual const FMetasoundDocument& GetDocument() const = 0;
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// Returns the owning asset responsible for transactions applied to metasound
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virtual UObject* GetOwningAsset() const = 0;
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// Returns a weak pointer that can be used to build a TDescriptionPtr
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// for direct editing of the FMetasoundClassDescription tree.
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// For advance use only, and requires knowledge of Metasound::Frontend::FDescPath syntax.
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// For most use cases, use GetRootGraphHandle() instead.
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TWeakPtr<Metasound::Frontend::FDescriptionAccessPoint> GetGraphAccessPoint() const;
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TSharedPtr<Metasound::Frontend::FDescriptionAccessPoint> AccessPoint;
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};
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