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> Unreal Engine API Reference > Runtime > Slate > Widgets > Layout > SConstraintCanvas

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SConstraintCanvas

ConstraintCanvas is a layout widget that allows you to arbitrary position and size child widgets in a relative coordinate space.

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Inheritance Hierarchy

FSlateControlledConstruction

TSharedFromThis

SWidget

SPanel

SConstraintCanvas

References

Module	Slate
Header	/Engine/Source/Runtime/Slate/Public/Widgets/Layout/SConstraintCanvas.h
Include	#include "Widgets/Layout/SConstraintCanvas.h"

Syntax

class SConstraintCanvas : public SPanel

Remarks

ConstraintCanvas is a layout widget that allows you to arbitrary position and size child widgets in a relative coordinate space. Additionally it permits anchoring widgets.

Variables

		Name	Description
	TPanelChildren<...	Children	The ConstraintCanvas widget's children.

Constructors

	Name	Description
	SConstraintCanvas()

Functions

	Name	Description
FSlot &	AddSlot()	Adds a content slot.
void	ClearChildren()	Removes all slots from the panel.
void	Construct ( const FArguments& InArgs )	Construct this widget
int32	RemoveSlot ( const TSharedRef< SWidget >& SlotW... )	Removes a particular content slot.
FSlot &	Slot()

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 &#...	GetChildren()	All widgets must provide a way to access their children in a layout-agnostic way.
void	OnArrangeChildren ( const FGeometry& AllottedGeometry, FArrangedChildren& ArrangedChildre... )	Panels arrange their children in a space described by the AllottedGeometry parameter.
int32	OnPaint ( const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyCullingRect, FSlateWindowElementList& OutDrawEl..., int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled )	The widget should respond by populating the OutDrawElements array with FDrawElements that represent it and any of its children.

Classes

	Name	Description
	FArguments
	FSlot	ConstraintCanvas slots allow child widgets to be positioned and sized

Typedefs

Name	Description
FArrangedChildLayers	An array matching the length and order of ArrangedChildren.

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