Files
UnrealEngineUWP/Engine/Source/Editor/GraphEditor/Public/SGraphNodeComment.h
bruce nesbit d60a5de509 Converted widget .Tag instances for tutorials to use MetaData
[CL 2286138 by bruce nesbit in Main branch]
2014-09-05 07:39:52 -04:00

90 lines
3.1 KiB
C++

// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
#pragma once
class SGraphNodeComment : public SGraphNodeResizable
{
public:
SLATE_BEGIN_ARGS(SGraphNodeComment){}
SLATE_END_ARGS()
// Begin SWidget Interface
virtual FReply OnMouseButtonDoubleClick( const FGeometry& InMyGeometry, const FPointerEvent& InMouseEvent ) override;
virtual void Tick(const FGeometry& AllottedGeometry, const double InCurrentTime, const float InDeltaTime) override;
virtual FReply OnDrop( const FGeometry& MyGeometry, const FDragDropEvent& DragDropEvent ) override;
virtual void OnDragEnter( const FGeometry& MyGeometry, const FDragDropEvent& DragDropEvent ) override;
// End SWidget Interface
// Begin SNodePanel::SNode interface
virtual const FSlateBrush* GetShadowBrush(bool bSelected) const override;
virtual void GetOverlayBrushes(bool bSelected, const FVector2D WidgetSize, TArray<FOverlayBrushInfo>& Brushes) const;
virtual bool ShouldAllowCulling() const override { return false; }
// End SNodePanel::SNode interface
// Begin SPanel Interface
virtual FVector2D ComputeDesiredSize() const override;
// End SPanel interface
// Begin SGraphNode Interface
virtual bool IsNameReadOnly() const override;
// ENd SGraphNode Interface
void Construct( const FArguments& InArgs, UEdGraphNode* InNode );
/** return if the node can be selected, by pointing given location */
virtual bool CanBeSelected( const FVector2D& MousePositionInNode ) const override;
/** return size of the title bar */
virtual FVector2D GetDesiredSizeForMarquee() const override;
/** return rect of the title bar */
virtual FSlateRect GetTitleRect() const override;
protected:
// SGraphNode Interface
virtual void UpdateGraphNode() override;
virtual bool ShouldScaleNodeComment()const override;
virtual void PopulateMetaTag(class FGraphNodeMetaData* TagMeta) const override;
/**
* Helper method to update selection state of comment and any nodes 'contained' within it
* @param bSelected If true comment is being selected, false otherwise
* @param bUpdateNodesUnderComment If true then force the rebuild of the list of nodes under the comment
*/
void HandleSelection(bool bIsSelected, bool bUpdateNodesUnderComment = false) const;
/** called when user is moving the comment node */
virtual void MoveTo(const FVector2D& NewPosition, FNodeSet& NodeFilter ) override;
// SGraphNodeResizable Interface
virtual float GetTitleBarHeight() const override;
virtual FSlateRect GetHitTestingBorder( float InverseZoomFactor ) const override;
virtual FVector2D GetNodeMaximumSize() const override;
// SGraphNodeResizable Interface
private:
/** @return the color to tint the comment body */
FSlateColor GetCommentBodyColor() const;
/** @return the color to tint the title bar */
FSlateColor GetCommentTitleBarColor() const;
/** Returns the width to wrap the text of the comment at */
float GetWrapAt() const;
private:
/** The current selection state of the comment */
mutable bool bIsSelected;
/** the title bar, needed to obtain it's height */
TSharedPtr<SBorder> TitleBar;
/** cached comment title */
FString CachedCommentTitle;
/** cached comment title */
int32 CachedWidth;
};