Class SplineSelection

Provides methods to track the selection of spline elements, knots, and tangents. SplineTools and SplineHandles use SplineSelection to manage these elements.

Inheritance

Object

SplineSelection

Inherited Members

Object.ToString()

Object.Equals(Object)

Object.Equals(Object, Object)

Object.ReferenceEquals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Namespace: UnityEditor.Splines

Syntax

public static class SplineSelection

Properties

Count

The number of elements in the current selection.

Declaration

public static int Count { get; }

Property Value

Type	Description
Int32

Methods

Add<T>(T)

Adds an element to the current selection.

Declaration

public static bool Add<T>(T element)
    where T : ISelectableElement

Parameters

Type	Name	Description
T	element	The ISelectableElement to add to the selection.

Returns

Type	Description
Boolean	Returns true if the element was added to the selection, and false if the element is already in the selection.

Type Parameters

Name	Description
T	SelectableKnot or SelectableTangent.

AddRange<T>(IEnumerable<T>)

Add a set of elements to the current selection.

Declaration

public static void AddRange<T>(IEnumerable<T> elements)
    where T : ISelectableElement

Parameters

Type	Name	Description
IEnumerable<T>	elements	The set of ISelectableElement to add to the selection.

Type Parameters

Name	Description
T	SelectableKnot or SelectableTangent.

Clear()

Clears the current selection.

Declaration

public static void Clear()

Contains<T>(T)

Checks if the selection contains a knot or a tangent.c'est

Declaration

public static bool Contains<T>(T element)
    where T : ISelectableElement

Parameters

Type	Name	Description
T	element	The element to verify.

Returns

Type	Description
Boolean	Returns true if the element is contained in the current selection, false otherwise.

Type Parameters

Name	Description
T	SelectableKnot or SelectableTangent.

GetActiveElement(IReadOnlyList<SplineInfo>)

Gets the active element of the selection. The active element is generally the last one added to this selection.

Declaration

public static ISelectableElement GetActiveElement(IReadOnlyList<SplineInfo> targets)

Parameters

Type	Name	Description
IReadOnlyList<SplineInfo>	targets	The splines to consider when getting the active element.

Returns

Type	Description
ISelectableElement	The ISelectableElement that represents the active knot or tangent. Returns null if no active element is found.

GetElements<T>(IReadOnlyList<SplineInfo>, ICollection<T>)

Gets all the elements of the current selection, filtered by target splines. Elements are added to the given collection.

Declaration

public static void GetElements<T>(IReadOnlyList<SplineInfo> targets, ICollection<T> results)
    where T : ISelectableElement

Parameters

Type	Name	Description
IReadOnlyList<SplineInfo>	targets	The splines to consider when looking at selected elements.
ICollection<T>	results	The collection to fill with spline elements from the selection.

Type Parameters

Name	Description
T	SelectableKnot or SelectableTangent.

GetElements<T>(SplineInfo, ICollection<T>)

Gets all the elements of the current selection, from a single spline target. Elements are added to the given collection.

Declaration

public static void GetElements<T>(SplineInfo target, ICollection<T> results)
    where T : ISelectableElement

Parameters

Type	Name	Description
SplineInfo	target	The spline to consider when looking at selected elements.
ICollection<T>	results	The collection to fill with spline elements from the selection.

Type Parameters

Name	Description
T	SelectableKnot or SelectableTangent.

HasAny<T>(IReadOnlyList<SplineInfo>)

Checks if the current selection contains at least one element from the given targeted splines.

Declaration

public static bool HasAny<T>(IReadOnlyList<SplineInfo> targets)
    where T : struct, ISelectableElement

Parameters

Type	Name	Description
IReadOnlyList<SplineInfo>	targets	The splines to consider when looking at selected elements.

Returns

Type	Description
Boolean	Returns true if the current selection contains at least an element of the desired type.

Type Parameters

Name	Description
T	SelectableKnot or SelectableTangent.

IsActive<T>(T)

Checks if an element is currently the active one in the selection.

Declaration

public static bool IsActive<T>(T element)
    where T : ISelectableElement

Parameters

Type	Name	Description
T	element	The ISelectableElement to test.

Returns

Type	Description
Boolean	Returns true if the element is the active element, false if it is not.

Type Parameters

Name	Description
T	SelectableKnot or SelectableTangent.

Remove<T>(T)

Remove an element from the current selection.

Declaration

public static bool Remove<T>(T element)
    where T : ISelectableElement

Parameters

Type	Name	Description
T	element	The ISelectableElement to remove from the selection.

Returns

Type	Description
Boolean	Returns true if the element has been removed from the selection, false otherwise.

Type Parameters

Name	Description
T	SelectableKnot or SelectableTangent.

RemoveRange<T>(IReadOnlyList<T>)

Remove a set of elements from the current selection.

Declaration

public static bool RemoveRange<T>(IReadOnlyList<T> elements)
    where T : ISelectableElement

Parameters

Type	Name	Description
IReadOnlyList<T>	elements	The set of ISelectableElement to remove from the selection.

Returns

Type	Description
Boolean	Returns true if at least an element has been removed from the selection, false otherwise.

Type Parameters

Name	Description
T	SelectableKnot or SelectableTangent.

Set<T>(T)

Sets the selection to the element.

Declaration

public static void Set<T>(T element)
    where T : ISelectableElement

Parameters

Type	Name	Description
T	element	The ISelectableElement to set as the selection.

Type Parameters

Name	Description
T	SelectableKnot or SelectableTangent.

SetActive<T>(T)

Sets the active element of the selection.

Declaration

public static void SetActive<T>(T element)
    where T : ISelectableElement

Parameters

Type	Name	Description
T	element	The ISelectableElement to set as the active element.

Type Parameters

Name	Description
T	SelectableKnot or SelectableTangent.

Events

changed

Action that is called when the element selection changes.

Declaration

public static event Action changed

Event Type

Type	Description
Action