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  3. UK2Node_Variable

UK2Node_Variable

Unreal Engine C++ API Reference > Editor > BlueprintGraph

Inheritance Hierarchy

References

   
Module BlueprintGraph
Header /Engine/Source/Editor/BlueprintGraph/Classes/K2Node_Variable.h
Include #include "K2Node_Variable.h"

Syntax

class UK2Node_Variable : public UK2Node

Variables

  Type Name Description
Public variable TEnumAsByte< ESelfContextInfo::Type > SelfContextInfo  
Public variable FMemberReference VariableReference Reference to variable we want to set/get

Constructors

  Type Name Description
Public function  

UK2Node_Variable ( const FObjectInitializer& ObjectInitializer
)

  

Functions

  Type Name Description
Public function void

CheckForErrors ( const UEdGraphSchema_K2* Schema,
FCompilerResultsLog& MessageLog
)

 Validates there are no errors in the node
Public function void Creates 'self' pin
Public function bool

CreatePinForVariable ( EEdGraphPinDirection Direction,
FName InPinName
)

 Creates a reader or writer pin for a variable.
Public function Static bool

DoesRenamedVariableMatch ( FName OldVariableName,
FName NewVariableName,
UStruct* StructType
)

 Returns true if the variable names match, this looks for redirectors
Protected function Static bool

FunctionParameterExists ( const UEdGraph* InFunctionGraph,
const FName InParameterName
)

 Returns whether a Function Graph contains a parameter with the given name
Protected function Const const UActorComponent *

GetActorComponent ( const FProperty* VariableProperty
)

 Utility function to retrieve actor component for variable property.
Protected function Const FBPVariableDescription const *  
Public function Const FProperty * Get the FProperty for this variable node
Public function Const FProperty * Get the FProperty for this variable node
Public function Const UEdGraphPin * Accessor for the value output pin of the node
Public function Static FSlateIcon

GetVariableIconAndColor ( const UStruct* VarScope,
FName VarName,
FLinearColor& IconColorOut
)

 Utility method intended to serve as a choke point for various slate widgets to grab an icon from (for a specified variable).
Public function Const UClass * Get the class to look for this variable in
Public function Static FSlateIcon

GetVarIconFromPinType ( const FEdGraphPinType& InPinType,
FLinearColor& IconColorOut
)

 Utility method intended to serve as a choke point for various slate widgets to grab an icon from (for a specified variable pin type).
Public function Const FName Util to get variable name
Public function Const FString Util to get variable name as a string
Public function Const FText  
Public function bool

RecreatePinForVariable ( EEdGraphPinDirection Direction,
TArray< UEdGraphPin* >& OldPins,
FName InPinName
)

 Creates a reader or writer pin for a variable from an old pin.
Protected function bool

RemapRestrictedLinkReference ( FName OldVariableName,
FName NewVariableName,
const UClass* MatchInVariableClass,
const UClass* RemapIfLinkedToClass,
bool bLogWarning
)

 Remap a reference from one variable to another, if this variable is of class type 'MatchInVariableClass', and if linked to anything that is a child of 'RemapIfLinkedToClass'.
Public function void

SetFromProperty ( const FProperty* Property,
bool bSelfContext,
UClass* OwnerClass
)

 Set up this variable node from the supplied FProperty
Protected function Const void Adds the variable reference to the suppressed deprecation warnings list

Overridden from UK2Node

  Type Name Description
Public function Virtual Const ERedirectType

DoPinsMatchForReconstruction ( const UEdGraphPin* NewPin,
int32 NewPinIndex,
const UEdGraphPin* OldPin,
int32 OldPinIndex
)

 Whether or not two pins match for purposes of reconnection after reconstruction.
Public function Virtual Const bool Return whether to draw this node as a small variable node
Public function Virtual Const FName  
Public function Virtual Const void

GetNodeAttributes ( TArray< TKeyValuePair< FString, FString >>& OutNodeAttributes
)

 This function returns an arbitrary number of attributes that describe this node for analytics events
Public function Virtual Const FText  
Public function Virtual void

HandleVariableRenamed ( UBlueprint* InBlueprint,
UClass* InVariableClass,
UEdGraph* InGraph,
const FName& InOldVarName,
const FName& InNewVarName
)

 Handle when a variable is renamed in the Blueprint Palette
Public function Virtual Const bool

ReferencesVariable ( const FName& InVarName,
const UStruct* InScope
)

 Return whether this node references the specified variable, give the supplied scope.
Public function Virtual void

ReplaceReferences ( UBlueprint* InBlueprint,
UBlueprint* InReplacementBlueprint,
const FMemberReference& InSource,
const FMemberReference& InReplacement
)

 Replace any member references of source with replacement

Overridden from UEdGraphNode

  Type Name Description
Public function Virtual void Autowire a newly created node.
Public function Virtual Const bool Returns true if it is possible to jump to the definition of this node (e.g., if it's a variable get or a function call)
Public function Virtual Const bool

CanPasteHere ( const UEdGraph* TargetGraph
)

 Determine if this node can live in the specified graph
Public function Virtual Const FEdGraphNodeDeprecationResponse

GetDeprecationResponse ( EEdGraphNodeDeprecationType DeprecationType
)

 Returns the response to use when reporting a deprecation.
Public function Virtual Const FString Returns the name of the excerpt to display from the specified external documentation link for the graph node Default behavior is to return the class name (including prefix)
Public function Virtual Const FString Returns the link used for external documentation for the graph node
Public function Virtual Const FString Gets the search string to find references to this node
Public function Virtual Const FSlateIcon  
Public function Virtual Const UObject * Returns the object that should be focused when double-clicking on this node (the object can be an actor, which selects it in the world, or a node/graph/pin)
Public function Virtual Const void Gets a list of actions that can be done to this particular node
Public function Virtual Const FLinearColor Gets the draw color of a node's title bar
Public function Virtual FString

GetPinMetaData ( FName InPinName,
FName InKey
)

 Return the requested metadata for the pin if there is any
Public function Virtual Const bool Returns true if this node references a deprecated type or member.
Public function Virtual Const bool

HasExternalDependencies ( TArray< class UStruct* >* OptionalOutput
)

 Returns whether or not this node has dependencies on an external structure If OptionalOutput isn't null, it should be filled with the known dependencies objects (Classes, Structures, Functions, etc).
Public function Virtual Const void Jump to the definition of this node (should only be called if CanJumpToDefinition() return true)
Public function Virtual void Perform any fixups (deep copies of associated data, etc...) necessary after a node has been pasted in the editor
Public function Virtual void Refresh the connectors on a node, preserving as many connections as it can.
Public function Virtual Const void Gives each visual node a chance to do final validation before it's node is harvested for use at runtime.

Overridden from UObject

  Type Name Description
Public function Virtual void Handles reading, writing, and reference collecting using FArchive.

Deprecated Variables

  Type Name Description
Protected variable uint32: 1 bSelfContext_DEPRECATED Whether or not this should be a "self" context
Protected variable FName VariableName_DEPRECATED Name of variable
Protected variable TSubclassOf< class UObject > VariableSourceClass_DEPRECATED Class that this variable is defined in. Should be NULL if bSelfContext is true.

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