ATOM-15326 support for image thumbnails in asset browser and thumbnail widget

This change adds support for streaming image thumbnails in the asset browser tree and thumbnail widget. This is a prerequisite for displaying image previews inside of the material inspector. https://jira.agscollab.com/browse/ATOM-15326 https://jira.agscollab.com/browse/ATOM-14003
2021-04-23 13:07:20 -05:00
parent 59ccaa9495
commit 923f234d71
9 changed files with 476 additions and 23 deletions
@@ -0,0 +1,59 @@
+/*
+ * All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
+ * its licensors.
+ *
+ * For complete copyright and license terms please see the LICENSE at the root of this
+ * distribution (the "License"). All use of this software is governed by the License,
+ * or, if provided, by the license below or the license accompanying this file. Do not
+ * remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *
+ */
+#pragma once
+
+#include <AzCore/Component/Component.h>
+#include <AzFramework/Application/Application.h>
+#include <AzToolsFramework/Thumbnails/Thumbnail.h>
+#include <AzToolsFramework/Thumbnails/ThumbnailerBus.h>
+
+namespace ImageProcessingAtom
+{
+    namespace Thumbnails
+    {
+        //! System component for image thumbnails.
+        class ImageThumbnailSystemComponent
+            : public AZ::Component
+            , public AzFramework::ApplicationLifecycleEvents::Bus::Handler
+            , public AzToolsFramework::Thumbnailer::ThumbnailerRendererRequestBus::Handler
+        {
+        public:
+            AZ_COMPONENT(ImageThumbnailSystemComponent, "{C45D69BB-4A3B-49CF-916B-580F05CAA755}");
+
+            static void Reflect(AZ::ReflectContext* context);
+
+            static void GetProvidedServices(AZ::ComponentDescriptor::DependencyArrayType& provided);
+            static void GetIncompatibleServices(AZ::ComponentDescriptor::DependencyArrayType& incompatible);
+            static void GetRequiredServices(AZ::ComponentDescriptor::DependencyArrayType& required);
+            static void GetDependentServices(AZ::ComponentDescriptor::DependencyArrayType& dependent);
+
+        protected:
+            // AZ::Component interface overrides...
+            void Activate() override;
+            void Deactivate() override;
+
+        private:
+            void SetupThumbnails();
+            void TeardownThumbnails();
+
+            // AzFramework::ApplicationLifecycleEvents overrides...
+            void OnApplicationAboutToStop() override;
+
+            // ThumbnailerRendererRequestsBus::Handler interface overrides...
+            bool Installed() const override;
+            void RenderThumbnail(AzToolsFramework::Thumbnailer::SharedThumbnailKey thumbnailKey, int thumbnailSize) override;
+
+            bool RenerThumbnailFromImage(
+                AzToolsFramework::Thumbnailer::SharedThumbnailKey thumbnailKey, int thumbnailSize, IImageObjectPtr previewImage) const;
+        };
+    } // namespace Thumbnails
+} // namespace ImageProcessingAtom