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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]
133 lines
3.4 KiB
C++
133 lines
3.4 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "SCascadePreviewViewport.h"
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#include "CascadeParticleSystemComponent.h"
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#include "Cascade.h"
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#include "Framework/Application/SlateApplication.h"
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#include "Slate/SceneViewport.h"
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#include "CascadePreviewViewportClient.h"
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#include "SCascadePreviewToolbar.h"
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#include "Widgets/Docking/SDockTab.h"
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void SCascadePreviewViewport::Tick(const FGeometry& AllottedGeometry, const double InCurrentTime, const float InDeltaTime)
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{
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SEditorViewport::Tick(AllottedGeometry, InCurrentTime, InDeltaTime);
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JustTicked = true;
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}
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SCascadePreviewViewport::~SCascadePreviewViewport()
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{
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UEditorEngine* Editor = (UEditorEngine*)GEngine;
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Editor->OnPreviewFeatureLevelChanged().Remove(PreviewFeatureLevelChangedHandle);
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if (ViewportClient.IsValid())
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{
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ViewportClient->Viewport = NULL;
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}
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}
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void SCascadePreviewViewport::Construct(const FArguments& InArgs)
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{
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CascadePtr = InArgs._Cascade;
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SEditorViewport::Construct( SEditorViewport::FArguments() );
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// Restore last used feature level
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if (ViewportClient.IsValid())
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{
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UWorld* World = ViewportClient->GetPreviewScene().GetWorld();
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if (World != nullptr)
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{
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World->ChangeFeatureLevel(GWorld->FeatureLevel);
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}
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}
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// Use a delegate to inform the attached world of feature level changes.
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UEditorEngine* Editor = (UEditorEngine*)GEngine;
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PreviewFeatureLevelChangedHandle = Editor->OnPreviewFeatureLevelChanged().AddLambda([this](ERHIFeatureLevel::Type NewFeatureLevel)
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{
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if(ViewportClient.IsValid())
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{
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UWorld* World = ViewportClient->GetPreviewScene().GetWorld();
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if (World != nullptr)
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{
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World->ChangeFeatureLevel(NewFeatureLevel);
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}
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}
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});
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}
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void SCascadePreviewViewport::RefreshViewport()
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{
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SceneViewport->Invalidate();
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}
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bool SCascadePreviewViewport::IsVisible() const
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{
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return ViewportWidget.IsValid() && (!ParentTab.IsValid() || ParentTab.Pin()->IsForeground()) && SEditorViewport::IsVisible();
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}
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TSharedPtr<FSceneViewport> SCascadePreviewViewport::GetViewport() const
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{
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return SceneViewport;
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}
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TSharedPtr<FCascadeEdPreviewViewportClient> SCascadePreviewViewport::GetViewportClient() const
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{
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return ViewportClient;
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}
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TSharedPtr<SViewport> SCascadePreviewViewport::GetViewportWidget() const
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{
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return ViewportWidget;
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}
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TSharedRef<FEditorViewportClient> SCascadePreviewViewport::MakeEditorViewportClient()
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{
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ViewportClient = MakeShareable(new FCascadeEdPreviewViewportClient(CascadePtr, SharedThis(this)));
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ViewportClient->bSetListenerPosition = false;
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ViewportClient->SetRealtime(true);
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ViewportClient->VisibilityDelegate.BindSP(this, &SCascadePreviewViewport::IsVisible);
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return ViewportClient.ToSharedRef();
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}
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TSharedPtr<SWidget> SCascadePreviewViewport::MakeViewportToolbar()
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{
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return
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SNew(SCascadePreviewViewportToolBar)
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.CascadePtr(CascadePtr)
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.IsEnabled(FSlateApplication::Get().GetNormalExecutionAttribute());
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}
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void SCascadePreviewViewport::PopulateViewportOverlays(TSharedRef<SOverlay> Overlay)
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{
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SEditorViewport::PopulateViewportOverlays(Overlay);
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// this widget will display the current viewed feature level
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Overlay->AddSlot()
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.VAlign(VAlign_Top)
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.HAlign(HAlign_Right)
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.Padding(5.0f)
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[
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BuildFeatureLevelWidget()
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];
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}
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void SCascadePreviewViewport::OnFocusViewportToSelection()
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{
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UParticleSystemComponent* Component = CascadePtr.Pin()->GetParticleSystemComponent();
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if( Component )
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{
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ViewportClient->FocusViewportOnBox( Component->Bounds.GetBox() );
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}
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}
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