83 lines
2.5 KiB
C++
83 lines
2.5 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 "BaseGizmos/GizmoInterfaces.h"
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#include "HitTargets.generated.h"
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class UPrimitiveComponent;
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/**
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* UGizmoLambdaHitTarget is an IGizmoClickTarget implementation that
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* forwards the hit-test function to a TFunction
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*/
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UCLASS(MinimalAPI)
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class UGizmoLambdaHitTarget : public UObject, public IGizmoClickTarget
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{
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GENERATED_BODY()
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public:
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/** This function is called to determine if target is hit */
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TUniqueFunction<FInputRayHit(const FInputDeviceRay&)> IsHitFunction;
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/** This function is called to update hover state of the target */
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TFunction<void(bool)> UpdateHoverFunction;
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/** This function is called to update interacting state of the target */
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TFunction<void(bool)> UpdateInteractingFunction;
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public:
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INTERACTIVETOOLSFRAMEWORK_API virtual FInputRayHit IsHit(const FInputDeviceRay& ClickPos) const;
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INTERACTIVETOOLSFRAMEWORK_API virtual void UpdateHoverState(bool bHovering);
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INTERACTIVETOOLSFRAMEWORK_API virtual void UpdateInteractingState(bool bHovering);
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};
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/**
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* UGizmoComponentHitTarget is an IGizmoClickTarget implementation that
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* hit-tests a UPrimitiveComponent
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*/
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UCLASS(MinimalAPI)
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class UGizmoComponentHitTarget : public UObject, public IGizmoClickTarget
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{
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GENERATED_BODY()
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public:
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/**
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* Component->LineTraceComponent() is called to determine if the target is hit
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*/
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UPROPERTY()
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TObjectPtr<UPrimitiveComponent> Component;
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/**
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* If set, this condition is checked before performing the hit test. This gives a way
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* to disable the hit test without hiding the component. This is useful, for instance,
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* in a repositionable transform gizmo in world-coordinate mode, where the rotation
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* components need to be hittable for movement, but not for repositioning.
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*/
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TFunction<bool(const FInputDeviceRay&)> Condition = nullptr;
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/** This function is called to update hover state of the target */
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TFunction<void(bool)> UpdateHoverFunction;
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/** This function is called to update interacting state of the target */
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TFunction<void(bool)> UpdateInteractingFunction;
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public:
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INTERACTIVETOOLSFRAMEWORK_API virtual FInputRayHit IsHit(const FInputDeviceRay& ClickPos) const;
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INTERACTIVETOOLSFRAMEWORK_API virtual void UpdateHoverState(bool bHovering);
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INTERACTIVETOOLSFRAMEWORK_API virtual void UpdateInteractingState(bool bHovering);
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public:
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static INTERACTIVETOOLSFRAMEWORK_API UGizmoComponentHitTarget* Construct(
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UPrimitiveComponent* Component,
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UObject* Outer = (UObject*)GetTransientPackage());
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};
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