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UTransactor

Unreal Engine C++ API Reference > Editor > UnrealEd > Editor

Inheritance Hierarchy

References

   
Module UnrealEd
Header /Engine/Source/Editor/UnrealEd/Classes/Editor/Transactor.h
Include #include "Editor/Transactor.h"

Syntax

class UTransactor : public UObject

Constructors

  Type Name Description
Public function  

UTransactor ( const FObjectInitializer& ObjectInitializer
)

  

Functions

  Type Name Description
Public function Virtual int32

Begin ( const TCHAR* SessionContext,
const FText& Description
)

 Begins a new undo transaction.
Public function Virtual void

Cancel ( int32 StartIndex
)

 Cancels the current transaction, no longer capture actions to be placed in the undo buffer.
Public function Virtual bool

CanRedo ( FText* Text
)

 Determines whether the redo option should be selectable.
Public function Virtual bool

CanUndo ( FText* Text
)

 Determines whether the undo option should be selectable.
Public function Virtual void Clears all undo barriers.
Public function Virtual Const bool  
Public function Virtual bool Disables the transaction buffer from serializing the set of objects it references.
Public function Virtual bool Enables the transaction buffer to serialize the set of objects it references.
Public function Virtual int32

End ()

 Attempts to close an undo transaction. Only successful if the transaction's action counter is 1.
Public function Virtual Const int32

FindTransactionIndex ( const FGuid& TransactionId
)

 Gets the transaction queue index from its TransactionId.
Public function Virtual Const int32 Gets the current undo barrier's position in transaction queue
Public function Virtual Const int32 Gets the current length of the transaction queue.
Public function Virtual FTransactionContext Returns the description of the redo action that will be performed next.
Public function Virtual Const const FTransaction *

GetTransaction ( int32 QueueIndex
)

 Gets the transaction at the specified queue index.
Public function Virtual FTransactionContext

GetUndoContext ( bool bCheckWhetherUndoPossible
)

 Returns the description of the undo action that will be performed next.
Public function Virtual Const int32 Gets the number of transactions that were undone and can be redone.
Public function Virtual Const SIZE_T Determines the amount of data currently stored by the transaction buffer.
Public function Virtual bool Returns whether there are any active actions; i.e. whether actions are currently being captured into the undo buffer.
Public function Virtual Const bool Checks if a specific object is referenced by the transaction buffer
Public function Virtual bool Wrapper for checking if the transaction buffer is allowed to serialize object references.
Public function Virtual Const bool

IsObjectTransacting ( const UObject* Object
)

 Checks if a specific object is in the transaction currently underway
Public function Virtual bool

Redo ()

 Executes an redo transaction, redoing all actions contained by that transaction.
Public function Virtual void Removes the last set undo barrier from the transaction buffer.
Public function Virtual void

Reset ( const FText& Reason
)

 Resets the entire undo buffer; deletes all undo transactions.
Public function Virtual void Set passed object as the primary context object for transactions
Public function Virtual void Sets an undo barrier at the current point in the transaction buffer.
Public function Virtual bool

Undo ( bool bCanRedo
)

 Executes an undo transaction, undoing all actions contained by that transaction.

Deprecated Functions

  Type Name Description
Public function Virtual Const bool IsObjectInTransationBuffer is deprecated, please use IsObjectInTransactionBuffer instead.

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