67 lines
2.0 KiB
C++
67 lines
2.0 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "BaseGizmos/ComponentBoundTransformProxy.h"
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#include UE_INLINE_GENERATED_CPP_BY_NAME(ComponentBoundTransformProxy)
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void UComponentBoundTransformProxy::BindToComponent(USceneComponent* Component, bool bUseOwnScaleIn)
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{
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if (Component)
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{
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BoundComponent = Component;
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TGuardValue<bool> SetPivot(bSetPivotMode, true);
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SetTransform(Component->GetComponentToWorld());
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}
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bStoreScaleSeparately = bUseOwnScaleIn;
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}
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FTransform UComponentBoundTransformProxy::GetTransform() const
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{
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if (BoundComponent.IsValid())
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{
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FTransform TransformToUse = BoundComponent->GetComponentToWorld();
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if (bStoreScaleSeparately)
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{
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TransformToUse.SetScale3D(SharedTransform.GetScale3D());
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}
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return TransformToUse;
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}
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return Super::GetTransform();
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}
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INTERACTIVETOOLSFRAMEWORK_API void UComponentBoundTransformProxy::SetTransform(const FTransform& Transform)
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{
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if (BoundComponent.IsValid())
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{
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FTransform TransformToUse = Transform;
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if (bStoreScaleSeparately)
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{
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TransformToUse.SetScale3D(BoundComponent->GetComponentScale());
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}
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BoundComponent->SetWorldTransform(TransformToUse);
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}
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Super::SetTransform(Transform);
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}
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INTERACTIVETOOLSFRAMEWORK_API void UComponentBoundTransformProxy::UpdateSharedTransform()
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{
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if (!BoundComponent.IsValid())
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{
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Super::UpdateSharedTransform();
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return;
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}
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// Our shared transform is always the bound component transform.
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SharedTransform = BoundComponent->GetComponentTransform();
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for (FRelativeObject& Obj : Objects)
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{
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// The below seems like it should be writeable as Obj.RelativeTransform = Obj.StartTransform.GetRelativeTransform(SharedTransform),
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// but we write it like this for consistency with TransformProxy.cpp.
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// TODO: it seems that GetRelativeTransform goes down a different code path in the presence of negative scale (possibly
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// unintentionally?). Perhaps we should use that function in both places?
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Obj.RelativeTransform = Obj.StartTransform;
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Obj.RelativeTransform.SetToRelativeTransform(SharedTransform);
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}
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InitialSharedTransform = SharedTransform;
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}
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