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57 lines
2.6 KiB
C++
57 lines
2.6 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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#pragma once
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#include <AzCore/Memory/SystemAllocator.h>
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#include <AzCore/Component/Component.h>
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#include <AzToolsFramework/Thumbnails/ThumbnailerBus.h>
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// ThumbnailerNullComponent is an alternative to ThumbnailerComponent that can be used by tools that don't use Qt.
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// It doesn't do anything (hence "null"), but it allows the system and editor components that rely on the ThumbnailService
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// to start up and function.
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namespace AzToolsFramework
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{
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namespace Thumbnailer
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{
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class ThumbnailContext;
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class ThumbnailerNullComponent
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: public AZ::Component
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, public AzToolsFramework::Thumbnailer::ThumbnailerRequestsBus::Handler
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{
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public:
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AZ_COMPONENT(ThumbnailerNullComponent, "{8009D651-3FAA-9815-B99E-AF174A3B29D4}")
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ThumbnailerNullComponent();
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virtual ~ThumbnailerNullComponent();
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//////////////////////////////////////////////////////////////////////////
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// AZ::Component
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//////////////////////////////////////////////////////////////////////////
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void Activate() override;
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void Deactivate() override;
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static void Reflect(AZ::ReflectContext* context);
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static void GetProvidedServices(AZ::ComponentDescriptor::DependencyArrayType& services);
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//////////////////////////////////////////////////////////////////////////
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// ThumbnailerRequests
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//////////////////////////////////////////////////////////////////////////
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void RegisterContext(const char* contextName) override;
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void UnregisterContext(const char* contextName) override;
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bool HasContext(const char* contextName) const override;
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void RegisterThumbnailProvider(AzToolsFramework::Thumbnailer::SharedThumbnailProvider provider, const char* contextName) override;
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void UnregisterThumbnailProvider(const char* providerName, const char* contextName) override;
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AzToolsFramework::Thumbnailer::SharedThumbnail GetThumbnail(AzToolsFramework::Thumbnailer::SharedThumbnailKey thumbnailKey, const char* contextName) override;
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bool IsLoading(AzToolsFramework::Thumbnailer::SharedThumbnailKey thumbnailKey, const char* contextName) override;
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private:
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AzToolsFramework::Thumbnailer::SharedThumbnail m_nullThumbnail;
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};
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} // Thumbnailer
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} // namespace AzToolsFramework
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