Node3D Class Reference

Node3D is the base class of all 3D nodes. More...

Inheritance diagram for Node3D:

Collaboration diagram for Node3D:

Public Member Functions
void	addChild (Node3D node)
	Adds a child node. More...
void	arrange ()
	Arranges this node.
void	centeredArrange (Vector3 actualSize)
	Default implementation of arrange for a layout that accommodates all children at its center.
Vector3	centeredMeasure (Vector3 availableSize)
	Default implementation of measure for a layout that accommodates all children at its center.
void	close ()
Vector3	getActualSize ()
	Gets actual size. More...
Vector3	getAllocatedOffset ()
	Get allocated offset of an object.
Vector3	getAllocatedSize ()
	Gets allocated size. More...
Matrix4x4	getArrangeTransform ()
	Get arrange transform. More...
Node3D	getChild (int index)
	Returns a child from given index from node. More...
int	getChildCount ()
	Gets the number of children of the node. More...
int	getChildIndex (Node child)
	Returns the index of a child in a node. More...
Vector3	getCoreDesiredSize ()
	Get core desired size of an object. More...
Vector3	getDesiredSize ()
	Gets desired size. More...
Node3D	getFaceToCameraTarget ()
Matrix4x4	getFinalTransformation ()
	Gets the value of #FinalTransformationProperty. More...
Vector3	getLayoutBoundingBoxMax ()
	Get bounding box size max corner for an object.
Vector3	getLayoutBoundingBoxMin ()
	Get bounding box size min corner for an object.
SRTValue3D	getLayoutTransformation ()
	Gets the value of #LayoutTransformationProperty. More...
Node3D	getLookAtTarget ()
Node3D	getOrientationConstraintTarget ()
Vector3	getPivotOffset ()
	Get pivot offset of an object.
Node3D	getPositionConstraintTarget ()
SRTValue3D	getRenderTransformation ()
	Gets the value of #RenderTransformationProperty. More...
Vector3	getSize ()
	Returns the size of object node. More...
Vector3	getStretchScale ()
	Get stretch scale of an object.
boolean	hasChild (Node child)
	Returns whether or not the child exists. More...
void	insertChild (int index, Node3D child)
	Adds a child node for object node to given index. More...
boolean	isPrimitiveLayout ()
	Indicates whether the node has primitive layout behavior. More...
Iterable< Node3D >	iterateChildren ()
	Gets an Iterable object used to iterate the Node3D children. More...
Iterable< Node3D >	iterateChildrenReverse ()
	Gets an Reverse Iterable object used to iterate the Node3D children. More...
void	layout ()
	Does layout pass starting from this node and iterating recursively all of its children. More...
void	lookAt (Vector3 position, Vector3 lookAtPoint, Vector3 upVector)
	Sets node transformation so that the node is in a given position looking at the given point. More...
void	measure (Vector3 availableSize)
	Measures this node. More...
void	moveToBack ()
	Repositions the node to the beginning of its parent's children, so that it is drawn first.
void	moveToFront ()
	Repositions the node to the end of its parent's children, so that it is drawn last.
Vector3	nGetMaximumBoundingBoxCoordinates ()
	Returns the minimum coordinates for object nodes bounding volume. More...
Vector3	nGetMinimumBoundingBoxCoordinates ()
	Returns the maximum coordinates for object nodes bounding volume. More...
void	removeAllChildren ()
	Removes all child nodes.
void	removeChild (Node3D node)
	Removes child node. More...
void	removeChild (int index)
	Removes child node at specified index. More...
void	setActualSize (Vector3 actualSize)
	Sets actual size. More...
void	setAllocatedOffset (Vector3 allocatedOffset)
	Set allocated offset for an object.
void	setAllocatedSize (Vector3 allocatedSize)
	Sets allocated size. More...
void	setArrangeTransform (Matrix4x4 transform)
	Set arrange transform. More...
void	setAutoDepth ()
	Sets node to automatically determine depth.
void	setAutoSize ()
	Sets node to automatically determine width, height and depth.
void	setCoreDesiredSize (Vector3 value)
	Set core desired size for an object. More...
void	setDesiredSize (Vector3 size)
	Sets desired size. More...
void	setFinalTransformation (Matrix4x4 value)
	Sets the value of #FinalTransformationProperty. More...
void	setLayoutBoundingBoxSize (Vector3 bboxMin, Vector3 bboxMax)
	Set bounding box size for an object.
void	setLayoutTransformation (SRTValue3D value)
	Sets the value of #LayoutTransformationProperty. More...
void	setPivotOffset (Vector3 pivotOffset)
	Set pivot offset for an object.
void	setRenderTransformation (SRTValue3D value)
	Sets the value of #RenderTransformationProperty. More...
void	setSize (float width, float height, float depth)
	Sets size properties of the node. More...
void	setStretchScale (Vector3 stretchScale)
	Set stretch scale for an object.
Public Member Functions inherited from Node
Resource	acquireResource (String resourceId) throws ObjectNotFoundException
	Acquires a resource from the node or the node's closest ancestor having the resource id in the resource dictionary. More...
ResourceManager.AcquireTask	acquireResourcesAsync (String resourceId, ResourceManager.AcquireTask.Callback callback)
	Posts an asynchronous task to acquire a resource. More...
boolean	addAbstractChild (Node child)
	Adds a node as child of this node. More...
void	addAnonymousResource (Resource resource)
	Adds anonymous resource (such as style) for object node resources. More...
MessageSubscriptionToken	addMessageFilter (MessageType messageType, MessageSubscriptionFunction messageHandlerFunction)
	Adds a message filter where the filter is a function. More...
MessageSubscriptionToken	addMessageHandler (MessageType messageType, MessageSubscriptionFunction messageHandlerFunction)
	Adds a message handler where the handler is a function. More...
MessageSubscriptionToken	addMessageHandler (MessageType messageType, MessageSubscriptionFunction messageHandlerFunction, Node messageSourceFilter)
	Adds a message handler where the handler is a function. More...
void	addNodeComponent (NodeComponent component)
	Transfers the ownership of a node component to an object node. More...
void	addNodeComponentWithOwner (NodeComponent component, KanziObject owner)
	Transfers the ownership of a node component to an object node and sets the owner of the node component. More...
void	addResource (String resourceId, String resourceUrl)
	Adds a resource manager resource to an object node. More...
MessageSubscriptionToken	addTunnelingMessageFilter (MessageType messageType, MessageSubscriptionFunction messageHandlerFunction)
	Adds a message filter where the filter is a function. More...
MessageSubscriptionToken	addTunnelingMessageHandler (MessageType messageType, MessageSubscriptionFunction messageHandlerFunction, Node messageSourceFilter)
	Adds a message handler where the handler is a function and you explicitly define the accepted source. More...
void	attachRecursive ()
	Attaches a node and its children recursively.
boolean	containsResource (String resourceId)
	Returns if object node resource dictionary contains the resource with given ID. More...
void	detachRecursive ()
	Detaches a node and its children recursively.
void	dispatchMessage (MessageType messageType, MessageArguments arguments)
	Dispatches a message from this node with specified arguments. More...
String	findResourceUrl (String resourceId)
	Tries to find Resource URL for Resource ID from this node. More...
Node	getAbstractChild (int index)
	Returns node at given child index. More...
int	getAbstractChildCount ()
	Returns number of child nodes. More...
int	getAbstractChildIndex (Node node)
	Returns index of given node in list of child nodes. More...
float	getActualDepth ()
	Gets the value of #ActualDepthProperty. More...
float	getActualHeight ()
	Gets the value of #ActualHeightProperty. More...
float	getActualWidth ()
	Gets the value of #ActualWidthProperty. More...
float	getDepth ()
	Gets the value of #DepthProperty. More...
Vector2	getDepthMargin ()
	Gets the value of #DepthMarginProperty. More...
float	getHeight ()
	Gets the value of #HeightProperty. More...
Vector2	getHorizontalMargin ()
	Gets the value of #HorizontalMarginProperty. More...
String	getLocale ()
	Gets the value of #LocaleProperty. More...
String	getName ()
	Gets the value of #NameProperty. More...
float	getOpacity ()
	Gets the value of #OpacityProperty. More...
Node	getParent ()
	Gets parent of this node. More...
String	getPath ()
	Gets the value of #PathProperty. More...
Resource	getStateManager ()
	Gets the value of #StateManagerProperty. More...
Resource	getStyle ()
	Gets the value of #StyleProperty. More...
Vector2	getVerticalMargin ()
	Gets the value of #VerticalMarginProperty. More...
float	getWidth ()
	Gets the value of #WidthProperty. More...
boolean	isAttached ()
	Checks if node is attached to ui tree. More...
boolean	isAttaching ()
	Checks if node is in the process of attaching to ui tree. More...
boolean	isClipChildren ()
	Gets the value of #ClipChildrenProperty. More...
boolean	isDetaching ()
	Checks if node is in the process of getting detached from ui tree. More...
boolean	isEffectivelyEnabled ()
	Returns whether a node and its ancestor nodes are enabled. More...
boolean	isEffectivelyFocusable ()
	Returns whether a node and its ancestor focus scope nodes are focusable. More...
boolean	isEffectivelyVisible ()
	Returns whether a node and its ancestor nodes are visible. More...
boolean	isEnabled ()
	Gets the value of #EnabledProperty. More...
boolean	isFocusable ()
	Gets the value of the #FocusableProperty. More...
boolean	isFocused ()
	Sets whether a node is an active focus node and can receive keyboard messages. More...
boolean	isHitTestable ()
	Gets the value of #HitTestableProperty. More...
boolean	isHitTestableContainer ()
	Gets the value of #HitTestableContainerProperty. More...
boolean	isHover ()
	Gets the value of #HoverProperty. More...
boolean	isInitialized ()
	Checks if initialize() has been called. More...
boolean	isNamed (String name)
	Checks if node has a given name. More...
boolean	isVisible ()
	Gets the value of #VisibleProperty. More...
Iterable< NodeComponent >	iterateNodeComponents ()
	Gets an Iterable object used to iterate the Node Components. More...
NodeComponent	lookupNodeComponentByName (String name)
	Look up a Node Component bu Name. More...
KanziObject	lookupObject (String path)
	Returns a KanziObject by looking it up with specified path or alias. More...
boolean	removeAbstractChild (Node child)
	Removes child node from this node. More...
void	removeAnonymousResource (Resource resource)
	Removes anonymous resource from object node resources. More...
void	removeMessageHandler (MessageSubscriptionToken token)
	Removes a message subscription. More...
void	removeNodeComponent (NodeComponent component)
	Removes the ownership of a node component from an object node. More...
void	removeNodeComponentWithOwner (KanziObject owner)
	Removes all node component bindings with the specified owner. More...
void	removeResource (String resourceId)
	Removes a resource with given ID from object node resource dictionary. More...
void	setActualDepth (float value)
	Sets the value of #ActualDepthProperty. More...
void	setActualHeight (float value)
	Sets the value of #ActualHeightProperty. More...
void	setActualWidth (float value)
	Sets the value of #ActualWidthProperty. More...
void	setAutoHeight ()
	Sets node to automatically determine height.
void	setAutoWidth ()
	Sets node to automatically determine width.
void	setClipChildren (boolean value)
	Sets the value of #ClipChildrenProperty. More...
void	setDepth (float value)
	Sets the value of #DepthProperty. More...
void	setDepthMargin (Vector2 value)
	Sets the value of #DepthMarginProperty. More...
void	setEnabled (boolean value)
	Sets the value of the #EnabledProperty. More...
void	setFocusable (boolean value)
	Sets the value of the #FocusableProperty. More...
void	setFocused (boolean value)
	Sets the value of the #FocusedProperty. More...
void	setHeight (float value)
	Sets the value of #HeightProperty. More...
void	setHitTestable (boolean value)
	Sets the value of #HitTestableProperty. More...
void	setHitTestableContainer (boolean value)
	Sets the value of #HitTestableContainerProperty. More...
void	setHorizontalMargin (Vector2 value)
	Sets the value of #HorizontalMarginProperty. More...
void	setHover (boolean value)
	Sets the value of #HoverProperty. More...
void	setLocale (String value)
	Sets the value of #LocaleProperty. More...
void	setName (String name)
	Sets the value of #NameProperty. More...
void	setOpacity (float value)
	Sets the value of #OpacityProperty. More...
void	setStateManager (Resource value)
	Sets the value of #StateManagerProperty. More...
void	setStyle (Resource value)
	Sets the value of #StyleProperty. More...
void	setVerticalMargin (Vector2 value)
	Sets the value of #VerticalMarginProperty. More...
void	setVisible (boolean value)
	Sets the value of #VisibleProperty. More...
void	setWidth (float value)
	Sets the value of #WidthProperty. More...
Resource	tryAcquireResource (String resourceId)
	Acquires a resource from the node or the node's closest ancestor having the resource id in the resource dictionary. More...
Node	trySetFocus ()
	Tries to move the focus on this node. More...
Public Member Functions inherited from KanziObject
boolean	equals (Object object)
Domain	getDomain ()
	Returns the domain the object belongs to. More...
Metaclass	getDynamicMetaclass ()
	Returns the metaclass of the dynamic type of the object. More...
boolean	isStale ()
	Test if the object is stale i.e. More...
void	releaseOwnership ()
	Release ownership of the backing native object from this object. More...
void	removeLocalValue (PropertyType propertyType)
	Removes the local value associated with the property. More...
boolean	takeOwnership ()
	Take ownership of the backing native object in this object. More...

Static Public Member Functions
static Metaclass	getStaticMetaclass ()
	Returns the metaclass of this class. More...
static boolean	isUnboundedLayoutSize (Vector3 layoutSize)
	Indicates whether a layout size is an unbound layout size. More...
static boolean	isValidLayoutSize (Vector3 size)
	Indicates whether a size is valid layout size. More...
static float	layoutUp ()
static Vector3	replaceUnboundedLayoutSize (Vector3 layoutSize, Vector3 resetSize)
	Replaces any element of a layout size with appropriate element of the reset size if it is unbounded and returns the size. More...
static Vector3	replaceUnboundedLayoutSizeWithZero (Vector3 layoutSize)
	Replaces any element of a layout size with zero if it is unbounded and returns the size. More...
static Vector3	unboundedLayoutSize ()
	Returns an unbounded layout size. More...
Static Public Member Functions inherited from Node
static Metaclass	getStaticMetaclass ()
	Returns the metaclass of this class. More...
Static Public Member Functions inherited from KanziObject
static Metaclass	getStaticMetaclass ()
	Returns the metaclass of this class. More...

Protected Member Functions
	Node3D (Domain domain, String name, Metaclass metaclass)
	Creates a new node of a type derived from Node3D. More...
void	arrangeOverride (Vector3 actualSize)
void	initialize ()
	Initializes the Node3D. More...
Vector3	measureOverride (Vector3 availableSize)
void	onAttached ()
void	onDetached ()
void	onNodePropertyChanged (AbstractPropertyType propertyType, PropertyNotificationReason reason)

Additional Inherited Members
Public Attributes inherited from Node
DynamicPropertyType< Float >	ActualDepthProperty
DynamicPropertyType< Float >	ActualHeightProperty
DynamicPropertyType< Float >	ActualWidthProperty
DynamicPropertyType< Boolean >	ClipChildrenProperty
DynamicPropertyType< Integer >	ContentStretchProperty
DynamicPropertyType< Boolean >	CreatedFromKZBProperty
DynamicPropertyType< Integer >	DepthAlignmentProperty
DynamicPropertyType< Vector2 >	DepthMarginProperty
DynamicPropertyType< Float >	DepthProperty = new DynamicPropertyType<>("Node.Depth", Float.class)
DynamicPropertyType< Boolean >	EnableClickProperty
DynamicPropertyType< Boolean >	EnabledProperty
DynamicPropertyType< Boolean >	EnableMultiClickProperty
DynamicPropertyType< Boolean >	FocusableProperty
DynamicPropertyType< Boolean >	FocusedProperty
DynamicPropertyType< Resource >	FontFamilyProperty
DynamicPropertyType< Float >	HeightProperty
DynamicPropertyType< Boolean >	HitTestableContainerProperty
DynamicPropertyType< Boolean >	HitTestableProperty
DynamicPropertyType< Integer >	HorizontalAlignmentProperty
DynamicPropertyType< Vector2 >	HorizontalMarginProperty
DynamicPropertyType< Boolean >	HoverProperty
DynamicPropertyType< String >	LocaleProperty
DynamicPropertyType< String >	NameProperty = new DynamicPropertyType<>("Node.Name", String.class)
AbstractMetaclass	NodeMetaclass = new AbstractMetaclass("Kanzi.Node")
DynamicPropertyType< Float >	OpacityProperty
DynamicPropertyType< String >	PathProperty = new DynamicPropertyType<>("Node.Path", String.class)
DynamicPropertyType< Float >	Projection2DTo3DScaleProperty
DynamicPropertyType< Resource >	StateManagerProperty
DynamicPropertyType< Resource >	StyleProperty
DynamicPropertyType< Integer >	VerticalAlignmentProperty
DynamicPropertyType< Vector2 >	VerticalMarginProperty
DynamicPropertyType< Float >	VisibleAmountInParentProperty
DynamicPropertyType< Boolean >	VisibleProperty
DynamicPropertyType< Float >	WidthProperty = new DynamicPropertyType<>("Node.Width", Float.class)
Public Attributes inherited from Node3D
DynamicPropertyType< Matrix4x4 >	FinalTransformationProperty
DynamicPropertyType< Float >	FrustumCullMarginProperty
DynamicPropertyType< SRTValue3D >	LayoutTransformationProperty
AbstractMetaclass	Node3DMetaclass = new AbstractMetaclass("Kanzi.Node3D")
DynamicPropertyType< SRTValue3D >	RenderTransformationProperty

Detailed Description

Node3D is the base class of all 3D nodes.

Node3D implements functionality common to all 3D nodes, such as rendering, layout and hit testing. You should use classes derived from Node3D like #Image3D, #EmptyNode3D and #StackLayout3D to construct UI graphs. You can configure common parameters for rendering and layout with methods of Node3D. Use methods of derived classes to control behavior specific to them.

Constructor & Destructor Documentation

Node3D ( Domain  domain, String  name, Metaclass  metaclass  )

protected

Creates a new node of a type derived from Node3D.

Call this from constructor of your custom Node3D derivation.

Parameters

domain	UI Domain where this node belongs.
name	Name of the node.
metaclass	Metaclass data for this node.

Member Function Documentation

void addChild

(

Node3D

node

)

Adds a child node.

Adding a 3D node node as a child of a 2D node is only allowed when adding a scene to a viewport.

Parameters

node	Node to add as a child of this node.

Vector3 getActualSize

(

)

Gets actual size.

Returns

Actual size of this node.

Vector3 getAllocatedSize

(

)

Gets allocated size.

Returns

Allocated size of this node.

Matrix4x4 getArrangeTransform

(

)

Get arrange transform.

Returns

Current arrange transformation of this node.

Node3D getChild

(

int

index

)

Returns a child from given index from node.

Parameters

index

Index of the child node.

Returns

Child node at specified index.

int getChildCount

(

)

Gets the number of children of the node.

Returns

Number of child nodes.

int getChildIndex

(

Node

child

)

Returns the index of a child in a node.

Parameters

child

Child node to get index for.

Returns

Index of the specified child node.

Vector3 getCoreDesiredSize

(

)

Get core desired size of an object.

Returns

Current value.

Vector3 getDesiredSize

(

)

Gets desired size.

Returns

Desired size of this node.

Matrix4x4 getFinalTransformation

(

)

Gets the value of #FinalTransformationProperty.

Returns

Current value.

SRTValue3D getLayoutTransformation

(

)

Gets the value of #LayoutTransformationProperty.

Returns

Current value.

SRTValue3D getRenderTransformation

(

)

Gets the value of #RenderTransformationProperty.

Returns

Current value.

Vector3 getSize

(

)

Returns the size of object node.

Returns

Current size.

static Metaclass getStaticMetaclass ( )

static

Returns the metaclass of this class.

Returns

Static instance of metaclass of this node.

boolean hasChild

(

Node

child

)

Returns whether or not the child exists.

Returns

True if child exists, otherwise false.

void initialize ( )

protected

Initializes the Node3D.

This MUST be called as part of the static create method for all java derived nodes to complete object construction.

void insertChild	(	int	index,
		Node3D	child
	)

Adds a child node for object node to given index.

Parameters

index	Index where to add the child node.
child	Node to add as a child of this node.

boolean isPrimitiveLayout

(

)

Indicates whether the node has primitive layout behavior.

Returns

True if yes, false otherwise.

static boolean isUnboundedLayoutSize ( Vector3  layoutSize )

static

Indicates whether a layout size is an unbound layout size.

Size is layout unbound size if any of its elements is unbounded layout value.

Parameters

layoutSize

Layout size to test if it is unbound layout size.

Returns

true if the layoutSize is unbound layout size, false otherwise.

static boolean isValidLayoutSize ( Vector3  size )

static

Indicates whether a size is valid layout size.

Size is valid if all its elements are valid layout values (see Node::isValidLayoutValue()).

Parameters

size	Size to test if it is unbound layout size.

Returns

true if the size if valid layout size, false otherwise.

Iterable<Node3D> iterateChildren

(

)

Gets an Iterable object used to iterate the Node3D children.

Returns

An iterable of Node3D children.

Iterable<Node3D> iterateChildrenReverse

(

)

Gets an Reverse Iterable object used to iterate the Node3D children.

Returns

An reverse iterable of Node3D children.

void layout

(

)

Does layout pass starting from this node and iterating recursively all of its children.

Measure pass only descends up to nodes marked for requiring measure and then propagates upwards for all nodes that were changed. After measure, all nodes marked for requiring arrange and all their children are arranged. Node actual size is not known before layout. User may call layout manually to determine node actual sizes. Before calling layout, the node must have allocated size set to limit node area to anything less than infinity. Normal layout process sets allocated size to current composition size.

void lookAt	(	Vector3	position,
		Vector3	lookAtPoint,
		Vector3	upVector
	)

Sets node transformation so that the node is in a given position looking at the given point.

Parameters

position	The new translation of the node.
lookAtPoint	A point where the node is looking at.
upVector	The new up vector of the node.

void measure

(

Vector3

availableSize

)

Measures this node.

Parameters

availableSize

Available size passed from parent.

Vector3 nGetMaximumBoundingBoxCoordinates

(

)

Returns the minimum coordinates for object nodes bounding volume.

Returns

Current value.

Vector3 nGetMinimumBoundingBoxCoordinates

(

)

Returns the maximum coordinates for object nodes bounding volume.

Returns

Current value.

void removeChild

(

Node3D

node

)

Removes child node.

Parameters

node	Node to remove.

void removeChild

(

int

index

)

Removes child node at specified index.

Parameters

index

Index of the child to be removed.

static Vector3 replaceUnboundedLayoutSize ( Vector3  layoutSize, Vector3  resetSize  )

static

Replaces any element of a layout size with appropriate element of the reset size if it is unbounded and returns the size.

Parameters

layoutSize	Layout size to test if any of its elements is unbounded layout value.
resetSize	The size whose values are used as a replacement for specified layout size's unbounded value elements.

Returns

layoutSize with its unbounded value elements replaced with the elements of resetSize.

static Vector3 replaceUnboundedLayoutSizeWithZero ( Vector3  layoutSize )

static

Replaces any element of a layout size with zero if it is unbounded and returns the size.

Parameters

layoutSize

Layout size to test if any of its elements is unbounded layout value.

Returns

layoutSize with its unbounded value elements replaced with zero.

void setActualSize

(

Vector3

actualSize

)

Sets actual size.

Parameters

actualSize

New actual size.

void setAllocatedSize

(

Vector3

allocatedSize

)

Sets allocated size.

If allocated size differs from existing, will invalidate arrange as a side effect.

Parameters

allocatedSize

New allocated size.

void setArrangeTransform

(

Matrix4x4

transform

)

Set arrange transform.

If Layout transform differs existing, will invalidate arrange as a side effect.

Parameters

transform

New arrange transformation matrix.

void setCoreDesiredSize

(

Vector3

value

)

Set core desired size for an object.

Parameters

value

New value.

void setDesiredSize

(

Vector3

size

)

Sets desired size.

Parameters

size	New desired size.

void setFinalTransformation

(

Matrix4x4

value

)

Sets the value of #FinalTransformationProperty.

Parameters

value

New value.

void setLayoutTransformation

(

SRTValue3D

value

)

Sets the value of #LayoutTransformationProperty.

Parameters

value

New value.

void setRenderTransformation

(

SRTValue3D

value

)

Sets the value of #RenderTransformationProperty.

Parameters

value

New value.

void setSize	(	float	width,
		float	height,
		float	depth
	)

Sets size properties of the node.

Parameters

width	The value of the WidthProperty.
height	The value of the HeightProperty.
depth	The value of the DepthProperty.

static Vector3 unboundedLayoutSize ( )

static

Returns an unbounded layout size.

Returns

Unbounded layout size.