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76 lines
2.8 KiB
C++
76 lines
2.8 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 "Layout/Visibility.h"
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#include "Widgets/DeclarativeSyntaxSupport.h"
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#include "Layout/SlateRect.h"
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#include "Input/Reply.h"
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#include "SGraphNodeResizable.h"
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#include "Types/SlateStructs.h"
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class GRAPHEDITOR_API SGraphNodeDocumentation : public SGraphNodeResizable
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{
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public:
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SLATE_BEGIN_ARGS(SGraphNodeDocumentation){}
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SLATE_END_ARGS()
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//~ Begin SPanel Interface
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virtual FVector2D ComputeDesiredSize(float) const override;
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//~ End SPanel Interface
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//~ Begin SWidget Interface
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void Construct( const FArguments& InArgs, UEdGraphNode* InNode );
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virtual FReply OnMouseWheel( const FGeometry& MyGeometry, const FPointerEvent& MouseEvent ) override;
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virtual void Tick( const FGeometry& AllottedGeometry, const double InCurrentTime, const float InDeltaTime ) override;
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//~ End SWidget Interface
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//~ Begin SGraphNodeResizable Interface
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virtual FVector2D GetNodeMinimumSize() const override;
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virtual FVector2D GetNodeMaximumSize() const override;
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virtual float GetTitleBarHeight() const override;
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virtual FSlateRect GetHitTestingBorder() const override;
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//~ End SGraphNodeResizable Interface
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protected:
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//~ Begin SGraphNode Interface
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virtual void UpdateGraphNode() override;
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virtual bool IsNameReadOnly () const override { return false; }
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//~ End SGraphNode Interface
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/** Retrives the current documentation title based on the chosen excerpt */
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FText GetDocumentationTitle() const;
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/** Create documentation page from link and excerpt */
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TSharedPtr<SWidget> CreateDocumentationPage();
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/** Returns the width the documentation content must adhere to, used as a delegate in child widgets */
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FOptionalSize GetContentWidth() const;
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/** Returns the height the documentation content must adhere to, used as a delegate in child widgets */
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FOptionalSize GetContentHeight() const;
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/** Returns the child widget text wrapat size, used as a delegate during creation of documentation page */
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float GetDocumentationWrapWidth() const;
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/** Returns the current child widgets visibility for hit testing */
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EVisibility GetWidgetVisibility() const;
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/** Color of the page gradient start */
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FLinearColor GetPageGradientStartColor() const;
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/** Color of the page gradient end */
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FLinearColor GetPageGradientEndColor() const;
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private:
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/** Node Title Bar */
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TSharedPtr<SWidget> TitleBar;
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/** Documentation excerpt maximum page size */
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FVector2D DocumentationSize;
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/** Content Widget with the desired size being managed */
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TSharedPtr<SWidget> ContentWidget;
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/** Tracks if child widgets are availble to hit test against */
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EVisibility ChildWidgetVisibility;
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/** Cached Documentation Link */
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FString CachedDocumentationLink;
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/** Cached Documentation Excerpt */
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FString CachedDocumentationExcerpt;
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};
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