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#rnx #rb none #ROBOMERGE-SOURCE: CL 10869241 via CL 10869527 via CL 10869904 #ROBOMERGE-BOT: (v613-10869866) [CL 10870586 by ryan durand in Main branch]
130 lines
4.2 KiB
C++
130 lines
4.2 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 "Components/ActorComponent.h"
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#include "Engine/EngineTypes.h"
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#include "GameFramework/Actor.h"
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#include "IPropertyTypeCustomization.h"
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#include "PropertyEditorModule.h"
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#include "UObject/WeakObjectPtrTemplates.h"
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class SComboButton;
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class SWidget;
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struct FSlateBrush;
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class FComponentReferenceCustomization : public IPropertyTypeCustomization
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{
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public:
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/** Makes a new instance of this customization for a specific detail view requesting it */
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static TSharedRef<IPropertyTypeCustomization> MakeInstance();
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/** IPropertyTypeCustomization interface */
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virtual void CustomizeHeader(TSharedRef<class IPropertyHandle> InPropertyHandle, class FDetailWidgetRow& HeaderRow, IPropertyTypeCustomizationUtils& PropertyTypeCustomizationUtils) override;
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virtual void CustomizeChildren(TSharedRef<class IPropertyHandle> InPropertyHandle, class IDetailChildrenBuilder& StructBuilder, IPropertyTypeCustomizationUtils& PropertyTypeCustomizationUtils) override;
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private:
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/** From the property metadata, build the list of allowed and disallowed class. */
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void BuildClassFilters();
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/** Build the combobox widget. */
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void BuildComboBox();
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/**
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* From the Detail panel outer hierarchy, find the first actor or component owner we find.
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* This is use in case we want only component on the Self actor and to check if we did a cross-level reference.
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*/
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AActor* GetFirstOuterActor() const;
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/**
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* Set the value of the asset referenced by this property editor.
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* Will set the underlying property handle if there is one.
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*/
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void SetValue(const FComponentReference& Value);
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/** Get the value referenced by this widget. */
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FPropertyAccess::Result GetValue(FComponentReference& OutValue) const;
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/** Is the Value valid */
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bool IsComponentReferenceValid(const FComponentReference& Value) const;
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/** Callback when the property value changed. */
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void OnPropertyValueChanged();
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private:
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/**
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* Return 0, if we have multiple values to edit.
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* Return 1, if we display the widget normally.
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*/
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int32 OnGetComboContentWidgetIndex() const;
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bool CanEdit() const;
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bool CanEditChildren() const;
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const FSlateBrush* GetActorIcon() const;
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FText OnGetActorName() const;
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const FSlateBrush* GetComponentIcon() const;
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FText OnGetComponentName() const;
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const FSlateBrush* GetStatusIcon() const;
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/**
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* Get the content to be displayed in the asset/actor picker menu
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* @returns the widget for the menu content
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*/
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TSharedRef<SWidget> OnGetMenuContent();
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/**
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* Called when the asset menu is closed, we handle this to force the destruction of the asset menu to
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* ensure any settings the user set are saved.
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*/
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void OnMenuOpenChanged(bool bOpen);
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/**
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* Returns whether the actor/component should be filtered out from selection.
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*/
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bool IsFilteredActor(const AActor* const Actor) const;
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bool IsFilteredComponent(const UActorComponent* const Component) const;
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static bool IsFilteredObject(const UObject* const Object, const TArray<const UClass*>& AllowedFilters, const TArray<const UClass*>& DisallowedFilters);
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/**
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* Delegate for handling selection in the scene outliner.
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* @param InActor The chosen component
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*/
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void OnComponentSelected(const UActorComponent* InComponent);
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/**
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* Closes the combo button.
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*/
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void CloseComboButton();
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private:
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/** The property handle we are customizing */
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TSharedPtr<IPropertyHandle> PropertyHandle;
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/** Main combo button */
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TSharedPtr<SComboButton> ComponentComboButton;
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/** Classes that can be used with this property */
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TArray<const UClass*> AllowedActorClassFilters;
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TArray<const UClass*> AllowedComponentClassFilters;
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/** Classes that can NOT be used with this property */
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TArray<const UClass*> DisallowedActorClassFilters;
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TArray<const UClass*> DisallowedComponentClassFilters;
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/** Whether the asset can be 'None' in this case */
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bool bAllowClear;
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/** Can the actor be different/selected */
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bool bAllowAnyActor;
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/** Do it has the UseComponentPicker metadata */
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bool bUseComponentPicker;
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/** Cached ComponentReference */
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TWeakObjectPtr<AActor> CachedFirstOuterActor;
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TWeakObjectPtr<UActorComponent> CachedComponent;
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FPropertyAccess::Result CachedPropertyAccess;
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};
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