Class CompositionLayerUtils

Collection of utility methods that are useful for CompositionLayer.

Inheritance

object

CompositionLayerUtils

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: Unity.XR.CompositionLayers.Services

Assembly: Unity.XR.CompositionLayers.dll

Syntax

public static class CompositionLayerUtils

Methods

AddSuggestedExtensions(CompositionLayer)

Adds the components listed in the SuggestedExtensions from the LayerDataDescriptor corresponding to the layer's GameObject.

Declaration

public static void AddSuggestedExtensions(this CompositionLayer layer)

Parameters

Type	Name	Description
CompositionLayer	layer	The CompositionLayer add the SuggestedExtensions components to.

CanChangeOrderTo(CompositionLayer, int)

Checks if the CompositionLayer layer be changed to the order value.

Declaration

public static bool CanChangeOrderTo(this CompositionLayer layer, int order)

Parameters

Type	Name	Description
CompositionLayer	layer	The CompositionLayer to check if can be set to the `order` value.
int	order	The value to check if the `layer` can be set to.

Returns

Type	Description
bool	`true` if the `order` can be set the the `layer`'s order value.

CreateLayerData(string)

Uses typeFullName to find the LayerData type in the corresponding LayerDataDescriptor. Then creates and returns an instance of the LayerData.

Declaration

public static LayerData CreateLayerData(string typeFullName)

Parameters

Type	Name	Description
string	typeFullName	The type's full name that corresponds to a LayerDataDescriptor that holds the LayerData type information.

Returns

Type	Description
LayerData	If the `string` `typeFullName` matches a LayerDataDescriptor an instance of the LayerData type stored in the LayerDataDescriptor is returned. If no matching LayerDataDescriptor is found `null` is returned.

CreateLayerData(Type)

Uses type to find the LayerData type in the corresponding LayerDataDescriptor. Then creates and returns an instance of the LayerData.

Declaration

public static LayerData CreateLayerData(Type type)

Parameters

Type	Name	Description
Type	type

Returns

Type	Description
LayerData	If the `string` type matches a LayerDataDescriptor an instance of the LayerData type stored in the LayerDataDescriptor is returned. If no matching LayerDataDescriptor is found `null` is returned.

GetAllLayerDescriptors()

Gets a new copy of a list including all known LayerDataDescriptor.

Declaration

public static List<LayerDataDescriptor> GetAllLayerDescriptors()

Returns

Type	Description
List<LayerDataDescriptor>	A list of all known LayerDataDescriptor.

GetLayerDescriptor(string)

Gets the LayerDataDescriptor that matches the

string

typeFullName.

Declaration

public static LayerDataDescriptor GetLayerDescriptor(string typeFullName)

Parameters

Type	Name	Description
string	typeFullName	Id of the corresponding LayerDataDescriptor.

Returns

Type	Description
LayerDataDescriptor	The LayerDataDescriptor that corresponds to the `string` `typeFullName` provided. If the `string` is empty or the LayerDataDescriptor is not found Empty is returned.

GetLayerDescriptor(Type)

Gets the LayerDataDescriptor that matches the

Type

type.

Declaration

public static LayerDataDescriptor GetLayerDescriptor(Type type)

Parameters

Type	Name	Description
Type	type	The `Type` of the corresponding LayerDataDescriptor.

Returns

Type	Description
LayerDataDescriptor	The LayerDataDescriptor that corresponds to the `Type` `type` provided. If the `Type` is not a subclass of LayerData or the LayerDataDescriptor is not found Empty is returned.

TryChangeLayerOrder(CompositionLayer, int, int)

Try to change the layer's order and update the order registered with the CompositionLayerManager from oldOrder to a new order value newOrder.

Declaration

public static bool TryChangeLayerOrder(this CompositionLayer layer, int oldOrder, int newOrder)

Parameters

Type	Name	Description
CompositionLayer	layer	The CompositionLayer to change the order value of.
int	oldOrder	The old CompositionLayer order value this is usually the current Order.
int	newOrder	The new CompositionLayer order value to set.

Returns

Type	Description
bool	Returns `true` if the `layer` is set to the `newOrder` or is already set to `newOrder`.

TrySwapLayers(CompositionLayer, CompositionLayer)

Tries to swap the Order values of lhl and rhl.

Declaration

public static bool TrySwapLayers(this CompositionLayer lhl, CompositionLayer rhl)

Parameters

Type	Name	Description
CompositionLayer	lhl	Left hand CompositionLayer to swap the order of.
CompositionLayer	rhl	Right hand CompositionLayer to swap the order of.

Returns

Type Description

Type	Description
bool	`true` if the method was able to swap the `lhl` and `rhl` <xref href="Unity.XR.CompositionLayers.CompositionLayer" data-throw-if-not-resolved="false"></xref>. This can fail if the layers are not in a valid scene IsLayerSceneValid, one of the layers is the DefaultSceneCompositionLayer, the layers are not tracked by the <xref href="Unity.XR.CompositionLayers.Services.CompositionLayerManager" data-throw-if-not-resolved="false"></xref>, or that do not occupy the <xref href="Unity.XR.CompositionLayers.CompositionLayer.Order" data-throw-if-not-resolved="false"></xref> layer order with the <xref href="Unity.XR.CompositionLayers.Services.CompositionLayerManager" data-throw-if-not-resolved="false"></xref>.

bool

  true

if the method was able to swap the lhl and rhl

 <xref href="Unity.XR.CompositionLayers.CompositionLayer" data-throw-if-not-resolved="false"></xref>.

 This can fail if the layers are not in a valid scene IsLayerSceneValid, one of the layers is
 the DefaultSceneCompositionLayer, the layers are not tracked by the
 <xref href="Unity.XR.CompositionLayers.Services.CompositionLayerManager" data-throw-if-not-resolved="false"></xref>, or that do not occupy the <xref href="Unity.XR.CompositionLayers.CompositionLayer.Order" data-throw-if-not-resolved="false"></xref> layer
 order with the <xref href="Unity.XR.CompositionLayers.Services.CompositionLayerManager" data-throw-if-not-resolved="false"></xref>.