@jtopo/core / SelectedGroup

Class: SelectedGroup

当前选中的对象组(由鼠标点击 或者 框选)

// 当前被选中的对象集合,有Node、Link
let objects = stage.selectedGroup.objects;

// 判断obj是否在选中组中
stage.selectedGroup.has(obj); 

// 判断选中组是否为空
stage.selectedGroup.isEmpty();

Hierarchy

• EventTarget<EventsMap>

  ↳ SelectedGroup

Table of contents

Constructors

• constructor

Properties

• objects

Methods

• add
• addEventListener
• dispatchEvent
• getTopObjects
• hasListener
• isEmpty
• on
• removeAll
• removeEventListener
• reset

Constructors

constructor

new SelectedGroup()

Overrides

EventTarget.constructor

Properties

objects

Readonly objects: any[] = []

当前被选中的对象集合,有Node、Link

Methods

add

add(child): SelectedGroup

Parameters

Name	Type
child	NE

Returns

SelectedGroup

---

addEventListener

addEventListener<K>(type, callback): () => void

增加事件监听

Type parameters

Name	Type
K	extends keyof EventsMap

Parameters

Name	Type	Description
type	K	事件类型
callback	EventCallback<EventsMap[K]>

Returns

fn

(): void

Returns

void

Inherited from

EventTarget.addEventListener

---

dispatchEvent

dispatchEvent(event): void

分发事件

Parameters

Name	Type
event	any

Returns

void

Inherited from

EventTarget.dispatchEvent

---

getTopObjects

getTopObjects(): NE[]

Returns

NE[]

---

hasListener

hasListener<K>(type): boolean

是否有该类型的监听

Type parameters

Name	Type
K	extends keyof EventsMap

Parameters

Name	Type
type	K

Returns

boolean

Inherited from

EventTarget.hasListener

---

isEmpty

isEmpty(): boolean

是否为空

Returns

boolean

---

on

on<K>(type, callback): () => void

addEventLister的别名

Type parameters

Name	Type
K	extends keyof EventsMap

Parameters

Name	Type
type	K
callback	EventCallback<EventsMap[K]>

Returns

fn

(): void

Returns

void

Inherited from

EventTarget.on

---

removeAll

removeAll(): SelectedGroup

Returns

SelectedGroup

---

removeEventListener

removeEventListener<K>(type, callback): any

移除一个事件监听

Type parameters

Name	Type
K	extends keyof EventsMap

Parameters

Name	Type
type	K
callback	EventCallback<EventsMap[K]>

Returns

any

Inherited from

EventTarget.removeEventListener

---

reset

reset(): void

Returns

void