types: add ITextMetrics interface

src/editor/core/draw/particle/TextParticle.ts

@@ -2,6 +2,7 @@ import { ElementType, IEditorOption, IElement } from '../../..'
 import { PUNCTUATION_LIST } from '../../../dataset/constant/Common'
 import { DeepRequired } from '../../../interface/Common'
 import { IRowElement } from '../../../interface/Row'
+import { ITextMetrics } from '../../../interface/Text'
 import { Draw } from '../Draw'
 
 export interface IMeasureWordResult {
@@ -70,7 +71,7 @@ export class TextParticle {
   public measureText(
     ctx: CanvasRenderingContext2D,
     element: IElement
-  ): TextMetrics {
+  ): ITextMetrics {
     // 优先使用自定义字宽设置
     if (element.width) {
       const textMetrics = ctx.measureText(element.value)

src/editor/interface/Text.ts

@@ -1,5 +1,15 @@
 import { TextDecorationStyle } from '../dataset/enum/Text'
 
+export interface ITextMetrics {
+  width: number
+  actualBoundingBoxAscent: number
+  actualBoundingBoxDescent: number
+  actualBoundingBoxLeft: number
+  actualBoundingBoxRight: number
+  fontBoundingBoxAscent: number
+  fontBoundingBoxDescent: number
+}
+
 export interface ITextDecoration {
   style?: TextDecorationStyle
 }