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> Unreal Engine API Reference > Editor > GraphEditor > SNodePanel

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SNodePanel

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Inheritance Hierarchy

FSlateControlledConstruction

TSharedFromThis

SWidget

SPanel

SNodePanel

SGraphPanel

References

Module	GraphEditor
Header	/Engine/Source/Editor/GraphEditor/Public/SNodePanel.h
Include	#include "SNodePanel.h"

Syntax

class SNodePanel : public SPanel

Variables

	Name	Description
bool	bAllowContinousZoomInterpolation	Allow continous zoom interpolation?
bool	bDeferredZoomToNodeExtents	Deferred zoom to node extents
bool	bDeferredZoomToSelection	Deferred zoom to selected node extents
bool	bIsPanning	Are we panning the view at the moment?
bool	bIsZoomingWithTrackpad	Are we zooming the view with trackpad at the moment?
bool	bRequestDeferredPan	True if pending request for deferred panning
bool	bShowSoftwareCursor	Whether the software cursor should be drawn
bool	bTeleportInsteadOfScrollingWhenZoomingToFit	Teleport immediately, or smoothly scroll when doing a deferred zoom
bool	bVisualUpdatePending	A flag to detect when a visual update is pending to prevent deferred commands like zoom to fit from running when there are no widgets
FGeometry	CachedGeometry	Cached geometry for use within the active timer
TSlotlessChildr...	Children	The graph node widgets owned by this panel
EGraphRendering...	CurrentLOD	Current LOD level for nodes/pins
const UObject &...	DeferredMovementTargetObject	If non-null and a part of this panel, this node will be brought into view on the next Tick
FVector2D	DeferredPanPosition	Position to pan to
TSet< const UOb...	DeferredSelectionTargetObjects	If not empty and a part of this panel, this node will be selected and brought into view on the next Tick
TAttribute< boo...	IsEditable	Is the graph editable (can nodes be moved, etc...)?
FInputChord	LastKeyChordDetected	The last key chord detected in this graph panel
FMarqueeOperati...	Marquee	A pending marquee operation if it's active
FVector2D	NodeGrabOffset	Where in the title the user grabbed to initiate the drag
TMap< UObject &...	NodeToWidgetLookup	Given a node, find the corresponding widget
TWeakPtr< SNode...	NodeUnderMousePtr	The node that the user is dragging. Null when they are not dragging a node.
FVector2D	OldViewOffset	The position within the graph at which the user was looking last tick
float	OldZoomAmount	The actual scalar zoom amount last tick
SGraphEditor::F...	OnSpawnNodeByShortcut	Invoked when the user may be attempting to spawn a node using a shortcut
TMap< TWeakPtr<...	OriginalNodePositions	Node positions pre-drag, used to limit transaction creation on drag
FVector2D	PastePosition	The position where we should paste when a user executes the paste command.
int32	PreviousZoomLevel	Previous Zoom Level
TSharedPtr< FSc...	ScopedTransactionPtr	The current transaction for undo/redo
FGraphSelection...	SelectionManager	Nodes selected in this instance of the editor; the selection is per-instance of the GraphEditor
FVector2D	SoftwareCursorPosition	The current position of the software cursor
float	TotalGestureMagnify	Cumulative magnify delta from trackpad gesture
float	TotalMouseDelta	The total distance that the mouse has been dragged while down
float	TotalMouseDeltaXY	The additive X and Y components of mouse drag (used when zooming)
FVector2D	ViewOffset	The position within the graph at which the user is looking
TSlotlessChildr...	VisibleChildren
int32	ZoomLevel	How zoomed in/out we are. e.g. 0.25f results in quarter-sized nodes.
FCurveSequence	ZoomLevelFade	Curve that handles fading the 'Zoom +X' text
FCurveSequence	ZoomLevelGraphFade	Fade on zoom for graph
TUniquePtr< FZo...	ZoomLevels	The interface for mapping ZoomLevel values to actual node scaling values.
float	ZoomPadding	Zoom selection padding
FVector2D	ZoomStartOffset	Offset in the panel the user started the LMB+RMB zoom from

Constructors

	Name	Description
	SNodePanel()

Functions

	Name	Description
void	AddGraphNode ( const TSharedRef< SNode >& NodeToA... )	Add a slot to the CanvasPanel dynamically
void	ApplyMarqueeSelection ( const FMarqueeOperation& InMarquee, const FGraphPanelSelectionSet& Cur..., FGraphPanelSelectionSet& OutNewSel... )	Apply the marquee operation to the current selection
void	ArrangeChildNodes ( const FGeometry& AllottedGeometry, FArrangedChildren& ArrangedChildre... )	Arrange child nodes - allows derived classes to supply non-node children in OnArrangeChildren
void	CancelZoomToFit()	Cancels any active zoom-to-fit action.
void	CenterObject ( const UObject* ObjectToCenter )	On the next tick, centers the widget associated with the object if it exists
void	ChangeZoomLevel ( int32 ZoomLevelDelta, const FVector2D& WidgetSpaceZoomOr..., bool bOverrideZoomLimiting )	Change zoom level by the specified zoom level delta, about the specified origin.
FVector2D	ComputeEdgePanAmount ( const FGeometry& MyGeometry, const FVector2D& MouseEvent )	Compute much panel needs to change to pan to location
void	Construct()	Initialize members
bool	Contains ( UObject* Node )	Is the given node being observed by a widget in this panel?
void	FinalizeNodeMovements()	Commit transactions for any node movements
void	FindNodesAffectedByMarquee ( FGraphPanelSelectionSet& OutAffect... )	Figure out which nodes intersect the marquee rectangle
bool	GetBoundsForNode ( const UObject* InNode, FVector2D& MinCorner, FVector2D& MaxCorner, float Padding )	Get the bounds of the given node
bool	GetBoundsForNodes ( bool bSelectionSetOnly, FVector2D& MinCorner, FVector2D& MaxCorner, float Padding )	Get the bounds of the selected nodes
bool	GetBoundsForSelectedNodes ( FSlateRect& Rect, float Padding )	Get the bounding area for the currently selected nodes
EGraphRender...	GetCurrentLOD()	Returns the current LOD level of this panel, based on the zoom factor
FVector2D	GetPastePosition()
float	GetSnapGridSize()	Get the grid snap size
const FGuid ...	GetViewBookmarkId()
FVector2D	GetViewOffset()
float	GetZoomAmount()	The zoom amount; e.g. a value of 0.25f results in quarter-sized nodes
FText	GetZoomText()
FSlateColor	GetZoomTextColorAndOpacity()
FVector2D	GraphCoordToPanelCoord ( const FVector2D& GraphSpaceCoordin... )	Given a coordinate in graph space (e.g. a node's position), return the same coordinate in widget space while taking zoom and panning into account
bool	HasDeferredObjectFocus()	If it is focusing on a particular object
bool	HasMoved()	Returns if the panel has been panned or zoomed since the last update
bool	IsNodeCulled ( const TSharedRef< SNode >& Node, const FGeometry& AllottedGeometry )	Determines if a specified node is not visually relevant.
void	OnBeginNodeInteraction ( const TSharedRef< SNode >& InNodeT..., const FVector2D& GrabOffset )	Lets the CanvasPanel know that the user is interacting with a node.
void	OnEndNodeInteraction ( const TSharedRef< SNode >& InNodeT... )	Lets the CanvasPanel know that the user has ended interacting with a node.
bool	OnHandleLeftMouseRelease ( const FGeometry& MyGeometry, const FPointerEvent& MouseEvent )
TSharedPtr< ...	OnSummonContextMenu ( const FGeometry& MyGeometry, const FPointerEvent& MouseEvent )	INTERFACE TO IMPLEMENT.
void	PaintBackgroundAsLines ( const FSlateBrush* BackgroundI..., const FGeometry& AllottedGeometry, const FSlateRect& MyCullingRect, FSlateWindowElementList& OutDrawEl..., int32& DrawLayerId )	Paint the background as lines.
void	PaintComment ( const FString& CommentText, const FGeometry& AllottedGeometry, const FSlateRect& MyCullingRect, FSlateWindowElementList& OutDrawEl..., int32 DrawLayerId, const FLinearColor& CommentTinting, float& HeightAboveNode, const FWidgetStyle& InWidgetStyle )	Paint a comment bubble.
void	PaintMarquee ( const FGeometry& AllottedGeometry, const FSlateRect& MyCullingRect, FSlateWindowElementList& OutDrawEl..., int32 DrawLayerId )	Paint the marquee selection rectangle.
void	PaintSoftwareCursor ( const FGeometry& AllottedGeometry, const FSlateRect& MyCullingRect, FSlateWindowElementList& OutDrawEl..., int32 DrawLayerId )	Paint the software mouse if necessary.
void	PaintSurroundSunkenShadow ( const FSlateBrush* ShadowImage, const FGeometry& AllottedGeometry, const FSlateRect& MyCullingRect, FSlateWindowElementList& OutDrawEl..., int32 DrawLayerId )	Paint the well shadow (around the perimeter)
FVector2D	PanelCoordToGraphCoord ( const FVector2D& PanelSpaceCoordin... )	Given a coordinate in panel space (i.e. panel widget space), return the same coordinate in graph space while taking zoom and panning into account
FSlateRect	PanelRectToGraphRect ( const FSlateRect& PanelSpaceRect )	Given a rectangle in panel space, return a rectangle in graph space.
void	PopulateVisibleChildren ( const FGeometry& AllottedGeometry )	Populate visibile children array
void	PostChangedZoom()	Should be called whenever the zoom level has changed.
void	RemoveAllNodes()	Remove all nodes from the panel
void	RequestDeferredPan ( const FVector2D& TargetPosition )	Ask panel to scroll to location
void	RequestZoomToFit()	Fires up a per-tick function to zoom the graph to fit.
void	RestoreViewSettings ( const FVector2D& InViewOffset, float InZoomAmount, const FGuid& InBookmarkGuid )	Restore the graph panel to the supplied view offset/zoom.
bool	ScrollToLocation ( const FGeometry& MyGeometry, FVector2D DesiredCenterPosition, const float InDeltaTime )	Scroll the view to the desired location
void	SelectAndCenterObject ( const UObject* ObjectToSelect, bool bCenter )	On the next tick, centers and selects the widget associated with the object if it exists
void	SetZoomLevelsContainer()	Sets the zoom levels container.
void	UpdateViewOffset ( const FGeometry& MyGeometry, const FVector2D& TargetPosition )	Update the new view offset location
void	ZoomToFit ( bool bOnlySelection )	Zooms out to fit either all nodes or only the selected ones.
bool	ZoomToLocation ( const FVector2D& CurrentSizeWithou..., const FVector2D& DesiredSize, bool bDoneScrolling )	Zoom to fit the desired size
void	ZoomToTarget ( const FVector2D& TopLeft, const FVector2D& BottomRight )	Zooms to the specified target rect

Overridden from SWidget

	Name	Description
FVector2D	ComputeDesiredSize ( float )	A Panel's desired size in the space required to arrange of its children on the screen while respecting all of the children's desired sizes and any layout-related options specified by the user.
FChildren &#...	GetAllChildren()	Returns all the panel children rather than only visible
FChildren &#...	GetChildren()	All widgets must provide a way to access their children in a layout-agnostic way.
float	GetRelativeLayoutScale ( int32 ChildIndex, float LayoutScaleMultiplier )	What is the Child's scale relative to this widget.
void	OnArrangeChildren ( const FGeometry& AllottedGeometry, FArrangedChildren& ArrangedChildre... )	Panels arrange their children in a space described by the AllottedGeometry parameter.
FCursorReply	OnCursorQuery ( const FGeometry& MyGeometry, const FPointerEvent& CursorEvent )	The system asks each widget under the mouse to provide a cursor. This event is bubbled.
void	OnFocusLost ( const FFocusEvent& InFocusEvent )	Called when this widget loses focus. This event does not bubble.
FReply	OnKeyDown ( const FGeometry& MyGeometry, const FKeyEvent& InKeyEvent )	Called after a key is pressed when this widget has focus (this event bubbles if not handled)
FReply	OnKeyUp ( const FGeometry& MyGeometry, const FKeyEvent& InKeyEvent )	Called after a key is released when this widget has focus
FReply	OnMouseButtonDown ( const FGeometry& MyGeometry, const FPointerEvent& MouseEvent )	MOUSE INPUT The system calls this method to notify the widget that a mouse button was pressed within it.
FReply	OnMouseButtonUp ( const FGeometry& MyGeometry, const FPointerEvent& MouseEvent )	The system calls this method to notify the widget that a mouse button was release within it.
void	OnMouseCaptureLost ( const FCaptureLostEvent& CaptureLo... )	Called when this widget had captured the mouse, but that capture has been revoked for some reason.
FReply	OnMouseMove ( const FGeometry& MyGeometry, const FPointerEvent& MouseEvent )	The system calls this method to notify the widget that a mouse moved within it.
FReply	OnMouseWheel ( const FGeometry& MyGeometry, const FPointerEvent& MouseEvent )	Called when the mouse wheel is spun. This event is bubbled.
FReply	OnTouchEnded ( const FGeometry& MyGeometry, const FPointerEvent& InTouchEvent )	Called when a touchpad touch is ended (finger lifted)
FReply	OnTouchGesture ( const FGeometry& MyGeometry, const FPointerEvent& GestureEvent )	TOUCH and GESTURES Called when the user performs a gesture on trackpad. This event is bubbled.
void	Tick ( const FGeometry& AllottedGeometry, const double InCurrentTime, const float InDeltaTime )	Ticks this widget with Geometry.

Classes

	Name	Description
	SNode