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2b10993563
#jira UETOOL-3823 #rb brooke.hubert #preflight 6109d1e9b4288d0001acb7ef [CL 17055606 by michael balzer in ue5-main branch]
88 lines
3.9 KiB
C++
88 lines
3.9 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 "Algo/Count.h"
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#include "Algo/Find.h"
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#include "GameFramework/Actor.h"
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#include "Engine/Selection.h"
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#include "InteractiveToolBuilder.h"
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/**
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* Helper functions that can be used in InteractiveToolBuilder implementations
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*/
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namespace ToolBuilderUtil
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{
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/** Count number of selected components that pass predicate. If Component selection is not empty, returns that count, otherwise counts in all selected Actors */
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INTERACTIVETOOLSFRAMEWORK_API
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int CountComponents(const FToolBuilderState& InputState, const TFunction<bool(UActorComponent*)>& Predicate);
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/** First first available component that passes predicate. Searches Components selection list first, then all Actors */
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INTERACTIVETOOLSFRAMEWORK_API
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UActorComponent* FindFirstComponent(const FToolBuilderState& InputState, const TFunction<bool(UActorComponent*)>& Predicate);
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/** First all components that passes predicate. Searches Components selection list first, then all Actors */
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INTERACTIVETOOLSFRAMEWORK_API
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TArray<UActorComponent*> FindAllComponents(const FToolBuilderState& InputState, const TFunction<bool(UActorComponent*)>& Predicate);
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// @todo not sure that actors with multiple components are handled properly...
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/** Count number of components of given type. If Component selection is not empty, returns that count, otherwise counts in all selected Actors */
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template<typename ComponentType>
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int CountSelectedComponentsOfType(const FToolBuilderState& InputState);
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/** First first available component of given type. Searches Components selection list first, then all Actors */
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template<typename ComponentType>
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ComponentType* FindFirstComponentOfType(const FToolBuilderState& InputState);
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INTERACTIVETOOLSFRAMEWORK_API
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void EnumerateComponents(const FToolBuilderState& InputState, TFunctionRef<void(UActorComponent*)> ComponentFunc);
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/** Count number of selected Actors that pass predicate. */
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INTERACTIVETOOLSFRAMEWORK_API
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int32 CountActors(const FToolBuilderState& InputState, const TFunction<bool(AActor*)>& Predicate);
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/** First first available Actor that passes predicate. Searches Actors selection list. */
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INTERACTIVETOOLSFRAMEWORK_API
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AActor* FindFirstActor(const FToolBuilderState& InputState, const TFunction<bool(AActor*)>& Predicate);
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/** First all Actors that pass predicate. Searches Actors selection list. */
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INTERACTIVETOOLSFRAMEWORK_API
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TArray<AActor*> FindAllActors(const FToolBuilderState& InputState, const TFunction<bool(AActor*)>& Predicate);
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/** Count number of selected Actors of given type. */
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template<typename ActorType>
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int CountSelectedActorsOfType(const FToolBuilderState& InputState);
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/** Find first first available Actor of given type, or return nullptr if not found */
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template<typename ActorType>
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ActorType* FindFirstActorOfType(const FToolBuilderState& InputState);
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}
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/*
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* Template Implementations
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*/
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template<typename ComponentType>
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int ToolBuilderUtil::CountSelectedComponentsOfType(const FToolBuilderState& InputState)
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{
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return CountComponents(InputState, [](UActorComponent* Component) { return Cast<ComponentType>(Component) != nullptr; });
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}
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template<typename ComponentType>
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ComponentType* ToolBuilderUtil::FindFirstComponentOfType(const FToolBuilderState& InputState)
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{
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return FindFirstComponent(InputState, [](UActorComponent* Component) { return Cast<ComponentType>(Component) != nullptr; });
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}
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template<typename ActorType>
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int ToolBuilderUtil::CountSelectedActorsOfType(const FToolBuilderState& InputState)
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{
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return CountActors(InputState, [](AActor* Actor) { return Cast<ActorType>(Actor) != nullptr; });
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}
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template<typename ActorType>
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ActorType* ToolBuilderUtil::FindFirstActorOfType(const FToolBuilderState& InputState)
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{
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AActor* Found = FindFirstActor(InputState, [](AActor* Actor) { return Cast<ActorType>(Actor) != nullptr; });
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return (Found != nullptr) ? Cast<ActorType>(Found) : nullptr;
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} |