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40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
// Copyright 1998-2019 Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "Widgets/DeclarativeSyntaxSupport.h"
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#include "Widgets/SCompoundWidget.h"
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class SGraphPanel;
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class UEdGraph;
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// This widget provides a fully-zoomed-out preview of a specified graph
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class GRAPHEDITOR_API SGraphPreviewer : public SCompoundWidget
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{
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public:
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SLATE_BEGIN_ARGS(SGraphPreviewer)
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: _ShowGraphStateOverlay(true)
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{}
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SLATE_ATTRIBUTE( FText, CornerOverlayText )
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/** Show overlay elements for the graph state such as the PIE and read-only borders and text */
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SLATE_ATTRIBUTE(bool, ShowGraphStateOverlay)
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SLATE_ARGUMENT( TSharedPtr<SWidget>, TitleBar )
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SLATE_END_ARGS()
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void Construct(const FArguments& InArgs, UEdGraph* InGraphObj);
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private:
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/** Helper function used to refresh the graph */
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EActiveTimerReturnType RefreshGraphTimer(const double InCurrentTime, const float InDeltaTime);
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protected:
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/// The Graph we are currently viewing
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UEdGraph* EdGraphObj;
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// As node's bounds dont get updated immediately, to truly zoom out to fit we need to tick a few times
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int32 NeedsRefreshCounter;
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// The underlying graph panel
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TSharedPtr<SGraphPanel> GraphPanel;
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};
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