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58 lines
2.2 KiB
C++
58 lines
2.2 KiB
C++
// Copyright 1998-2016 Epic Games, Inc. All Rights Reserved.
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#include "UnrealEd.h"
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#include "GlobalEditorNotification.h"
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#include "ContentStreaming.h"
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#include "SNotificationList.h"
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/** Notification class for texture streaming. */
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class FTextureStreamingNotificationImpl : public FGlobalEditorNotification
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{
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protected:
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/** FGlobalEditorNotification interface */
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virtual bool ShouldShowNotification(const bool bIsNotificationAlreadyActive) const override;
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virtual void SetNotificationText(const TSharedPtr<SNotificationItem>& InNotificationItem) const override;
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private:
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static int32 GetNumStreamingTextures();
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};
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/** Global notification object. */
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FTextureStreamingNotificationImpl GTextureStreamingNotification;
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bool FTextureStreamingNotificationImpl::ShouldShowNotification(const bool bIsNotificationAlreadyActive) const
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{
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// We only want to show the notification initially if there's still enough work left to do to warrant it
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// However, if we're already showing the notification, we should continue to do so until all the streaming has finished
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// Never show these notifications during PIE
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const int32 NumStreamingTextures = GetNumStreamingTextures();
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return !GEditor->PlayWorld && ((NumStreamingTextures > 300) || (bIsNotificationAlreadyActive && NumStreamingTextures > 0));
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}
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void FTextureStreamingNotificationImpl::SetNotificationText(const TSharedPtr<SNotificationItem>& InNotificationItem) const
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{
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const int32 NumStreamingTextures = GetNumStreamingTextures();
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if (NumStreamingTextures > 0)
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{
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FFormatNamedArguments Args;
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Args.Add(TEXT("NumTextures"), FText::AsNumber(NumStreamingTextures));
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const FText ProgressMessage = FText::Format(NSLOCTEXT("StreamingTextures", "StreamingTexturesInProgressFormat", "Streaming Textures ({NumTextures})"), Args);
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InNotificationItem->SetText(ProgressMessage);
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}
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}
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int32 FTextureStreamingNotificationImpl::GetNumStreamingTextures()
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{
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FStreamingManagerCollection& StreamingManagerCollection = IStreamingManager::Get();
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if (StreamingManagerCollection.IsTextureStreamingEnabled())
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{
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ITextureStreamingManager& TextureStreamingManager = StreamingManagerCollection.GetTextureStreamingManager();
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return TextureStreamingManager.GetNumWantingResources();
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}
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return 0;
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}
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