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94 lines
4.2 KiB
C++
94 lines
4.2 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 "UObject/ObjectMacros.h"
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#include "Misc/Guid.h"
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#include "AnimGraphNode_Base.h"
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#include "Animation/AnimNode_CustomProperty.h"
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#include "IClassVariableCreator.h"
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#include "AnimGraphNode_CustomProperty.generated.h"
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class FCompilerResultsLog;
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class IDetailLayoutBuilder;
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class IPropertyHandle;
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class FAnimBlueprintCompilerHandler;
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UCLASS(Abstract)
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class ANIMGRAPH_API UAnimGraphNode_CustomProperty : public UAnimGraphNode_Base, public IClassVariableCreator
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{
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GENERATED_BODY()
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public:
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// IClassVariableCreator interface
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virtual void CreateClassVariablesFromBlueprint(IAnimBlueprintVariableCreationContext& InCreationContext) override;
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//~ Begin UEdGraphNode Interface.
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virtual void ValidateAnimNodeDuringCompilation(USkeleton* ForSkeleton, FCompilerResultsLog& MessageLog) override;
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virtual void ReallocatePinsDuringReconstruction(TArray<UEdGraphPin*>& OldPins) override;
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virtual UObject* GetJumpTargetForDoubleClick() const override;
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virtual bool HasExternalDependencies(TArray<class UStruct*>* OptionalOutput /*= NULL*/) const override;
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//~ End UEdGraphNode Interface.
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// UAnimGraphNode_Base interface
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virtual void CustomizeDetails(IDetailLayoutBuilder& DetailBuilder) override;
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virtual void OnProcessDuringCompilation(IAnimBlueprintCompilationContext& InCompilationContext, IAnimBlueprintGeneratedClassCompiledData& OutCompiledData) override;
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// Gets the property on InOwnerInstanceClass that corresponds to InInputPin
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void GetInstancePinProperty(const IAnimBlueprintCompilationContext& InCompilationContext, UEdGraphPin* InInputPin, FProperty*& OutProperty);
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// Gets the unique name for the property linked to a given pin
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FString GetPinTargetVariableName(const UEdGraphPin* InPin) const;
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// Gets Target Class this properties to link
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UClass* GetTargetClass() const;
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// Add Source and Target Properties - Check FAnimNode_CustomProperty
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void AddSourceTargetProperties(const FName& InSourcePropertyName, const FName& InTargetPropertyName);
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// Helper used to get the skeleton class we are targeting
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virtual UClass* GetTargetSkeletonClass() const;
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// ----- UI CALLBACKS ----- //
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// User changed the instance class etc.
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void OnStructuralPropertyChanged(IDetailLayoutBuilder* DetailBuilder);
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// If given property exposed on this node
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virtual ECheckBoxState IsPropertyExposed(FName PropertyName) const;
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// User chose to expose, or unexpose a property
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virtual void OnPropertyExposeCheckboxChanged(ECheckBoxState NewState, FName PropertyName);
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// If all possible properties are exposed on this node
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virtual ECheckBoxState AreAllPropertiesExposed() const;
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// User chose to expose, or unexpose all properties
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virtual void OnPropertyExposeAllCheckboxChanged(ECheckBoxState NewState);
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// User changed the instance class
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void OnInstanceClassChanged(IDetailLayoutBuilder* DetailBuilder);
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protected:
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/** List of property names we know to exist on the target class, so we can detect when
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* Properties are added or removed on reconstruction
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*/
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UPROPERTY()
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TArray<FName> KnownExposableProperties;
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/** Names of properties the user has chosen to expose */
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UPROPERTY()
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TArray<FName> ExposedPropertyNames;
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// Searches the instance class for properties that we can expose (public and BP visible)
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virtual void GetExposableProperties(TArray<FProperty*>& OutExposableProperties) const;
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// Gets a property's type as FText (for UI)
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FText GetPropertyTypeText(FProperty* Property);
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// Given a new class, rebuild the known property list (for tracking class changes and moving pins)
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virtual void RebuildExposedProperties();
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// internal node accessor
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virtual FAnimNode_CustomProperty* GetCustomPropertyNode() PURE_VIRTUAL(UAnimGraphNode_CustomProperty::GetCustomPropertyNode, return nullptr;);
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virtual const FAnimNode_CustomProperty* GetCustomPropertyNode() const PURE_VIRTUAL(UAnimGraphNode_CustomProperty::GetCustomPropertyNode, return nullptr;);
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// Check whether the specified property is structural (i.e. should we rebuild the UI if it changes)
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virtual bool IsStructuralProperty(FProperty* InProperty) const { return false; }
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// Whether this node needs a valid target class up-front
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virtual bool NeedsToSpecifyValidTargetClass() const { return true; }
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};
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