alexpete
119 lines
4.6 KiB
C++
119 lines
4.6 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#pragma once
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#include <AzCore/EBus/EBus.h>
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#include <AzCore/Slice/SliceComponent.h>
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#include <AzCore/Component/Component.h>
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#include <AzFramework/Entity/EntityContextBus.h>
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namespace AzToolsFramework
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{
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/**
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* Bus for making requests to the edit-time slice metadata context.
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*
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* The Slice Metadata Context creates and maintains entities whose components
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* store information associated with instantiated slices.
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*/
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class SliceMetadataEntityContextRequests
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: public AZ::EBusTraits
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{
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public:
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virtual ~SliceMetadataEntityContextRequests() {}
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//////////////////////////////////////////////////////////////////////////
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// EBusTraits overrides
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static const AZ::EBusHandlerPolicy HandlerPolicy = AZ::EBusHandlerPolicy::Single;
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//////////////////////////////////////////////////////////////////////////
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/**
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* Retrieve the unique Id of the slice metadata context.
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*/
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virtual AzFramework::EntityContextId GetSliceMetadataEntityContextId() = 0;
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/**
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* Resetting the context removes all entities from the context. Because the metadata entities themselves are owned by
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* their slices, this will not trigger destruction of the entities or remove them from the component application.
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*/
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virtual void ResetContext() = 0;
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/**
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* Determines if an entity belongs to the Slice Metadata Entity Context
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* @param entityId And Entity to Check.
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*/
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virtual bool IsSliceMetadataEntity(const AZ::EntityId entityId) = 0;
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/**
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* Get a raw pointer to an entity that belongs to this context
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* @param entityId The Id of the requested entity
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*/
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virtual AZ::Entity* GetMetadataEntity(const AZ::EntityId entityId) = 0;
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/**
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* Get a list of the components required for entities in this context
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* @param required A component type list. The required component types will be appended to the end of it.
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*/
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virtual void GetRequiredComponentTypes(AZ::ComponentTypeList& required) = 0;
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/**
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* Get the ID of the metadata entity associated with an editor entity
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* @return The ID of the associated entity, or an invalid ID if there is no association.
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*/
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virtual AZ::EntityId GetMetadataEntityIdFromEditorEntity(const AZ::EntityId editorEntityId) = 0;
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/**
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* Get the ID of the metadata entity associated with a slice instance address
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* @param address The slice address of an instantiated slice
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* @return The ID of the associated entity, or an invalid ID if there is no association.
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*/
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virtual AZ::EntityId GetMetadataEntityIdFromSliceAddress(const AZ::SliceComponent::SliceInstanceAddress& address) = 0;
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/**
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* Add a slice metadata entity to the context
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* @param sliceAddress The address of the slice associated with the metadata entity.
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# @param entity A pointer to the entity to add to the context
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*/
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virtual void AddMetadataEntityToContext(const AZ::SliceComponent::SliceInstanceAddress& /*sliceAddress*/, AZ::Entity& /*entity*/) = 0;
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};
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using SliceMetadataEntityContextRequestBus = AZ::EBus<SliceMetadataEntityContextRequests>;
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/**
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* Bus for receiving events/notifications from the slice metadata context.
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*/
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class SliceMetadataEntityContextNotifications
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: public AZ::EBusTraits
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{
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public:
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virtual ~SliceMetadataEntityContextNotifications() {};
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/**
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* Dispatched when the context is reset
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*/
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virtual void OnContextReset() {}
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/**
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* Dispatched when a metadata entity is added to the context
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*/
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virtual void OnMetadataEntityAdded(AZ::EntityId /*entityId*/) {}
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/**
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* Dispatched when a metadata entity is removed from the context
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*/
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virtual void OnMetadataEntityRemoved(AZ::EntityId /*entityId*/) {}
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};
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using SliceMetadataEntityContextNotificationBus = AZ::EBus<SliceMetadataEntityContextNotifications>;
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} // namespace AzToolsFramework
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