57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
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// Copyright Epic Games, Inc. All Rights Reserved.
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#include "ScopedTransaction.h"
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#include "Framework/Application/SlateApplication.h"
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#include "Editor.h"
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FScopedTransaction::FScopedTransaction(const FText& SessionName, const bool bShouldActuallyTransact)
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{
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Construct(TEXT(""), SessionName, NULL, bShouldActuallyTransact);
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}
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FScopedTransaction::FScopedTransaction(const TCHAR* TransactionContext, const FText& SessionName, UObject* PrimaryObject, const bool bShouldActuallyTransact)
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{
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Construct(TransactionContext, SessionName, PrimaryObject, bShouldActuallyTransact);
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}
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void FScopedTransaction::Construct(const TCHAR* TransactionContext, const FText& SessionName, UObject* PrimaryObject, const bool bShouldActuallyTransact)
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{
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if (bShouldActuallyTransact && GEditor && GEditor->Trans && ensure(!GIsTransacting))
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{
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Index = GEditor->BeginTransaction(TransactionContext, SessionName, PrimaryObject);
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check(IsOutstanding());
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}
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else
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{
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Index = -1;
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}
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}
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FScopedTransaction::~FScopedTransaction()
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{
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if (IsOutstanding())
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{
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GEditor->EndTransaction();
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}
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}
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/**
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* Cancels the transaction. Reentrant.
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*/
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void FScopedTransaction::Cancel()
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{
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if (IsOutstanding())
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{
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GEditor->CancelTransaction(Index);
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Index = -1;
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}
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}
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/**
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* @return true if the transaction is still outstanding (that is, has not been cancelled).
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*/
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bool FScopedTransaction::IsOutstanding() const
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{
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return Index >= 0;
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}
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