API 参考

这里是 signature 的完整契约：你可以绑定、监听、投影和设置主题的一切，都集中在一处。接入你需要的部分，自定义你想要的样式——它是 standalone 的，且对 signal 友好。

通过 9 个输入项精细调校 signature。像绑定任意 Angular @Input 一样绑定它们。

名称	类型	默认值	描述
`label`	`string`	`''`	Visible field label.
`formText`	`string`	`''`	Helper text shown below the drawing surface.
`height`	`number`	`160`	Logical canvas height in CSS pixels.
`strokeColor`	`string`	`'currentColor'`	Colour recorded in new SVG strokes.
`strokeWidth`	`number`	`2`	Base width recorded in new SVG strokes.
`readonly`	`boolean`	`false`	Prevents drawing while preserving the signature.
`controls`	`boolean`	`true`	Shows clear, undo and redo actions.
`labels`	`Partial<HubSignatureLabels>`	`{}`	Overrides the application-wide translated action labels for this field only.
`ariaLabel`	`string`	`'Signature'`	Accessible name for the drawing surface.

响应 signature 的行为——有 1 个事件可供你挂接逻辑。

名称	类型	描述
`valueChange`	`EventEmitter<string>`	Emits the SVG value after a user-originated change.

通过代码驱动 signature——其编程接口提供 5 个方法。

名称	签名	返回值	描述
`clear`	`clear(): void`	—	Removes every stroke and emits the empty value.
`undo`	`undo(): void`	—	Removes the most recently committed stroke.
`redo`	`redo(): void`	—	Restores the most recently undone stroke.
`toSvg`	`toSvg(): string`	—	Returns the scalable SVG form value.
`toDataUrl`	`toDataUrl(type?: string): string`	—	Exports the rendered signature, PNG by default.

尚未记录任何模板。