From 394d8e834f71c076f575c6d57454dc879e67bec9 Mon Sep 17 00:00:00 2001
From: dxq613 <dxq613@gmail.com>
Date: Fri, 20 Mar 2020 10:42:44 +0800
Subject: [PATCH] feat(label): label align definition

---
 src/geometry/label/base.ts      | 6 +++---
 src/geometry/label/interface.ts | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/geometry/label/base.ts b/src/geometry/label/base.ts
index f56de231e1..e9915e600e 100644
--- a/src/geometry/label/base.ts
+++ b/src/geometry/label/base.ts
@@ -4,7 +4,7 @@ import { Coordinate, Scale } from '../../dependents';
 import { Datum, LabelOption, LooseObject, MappingDatum, Point } from '../../interface';
 import { getPolygonCentroid } from '../../util/graphics';
 import Geometry from '../base';
-import { LabelCfg, LabelItem, LabelPointCfg } from './interface';
+import { LabelCfg, LabelItem, LabelPointCfg, TextAlign } from './interface';
 
 export type GeometryLabelConstructor = new (cfg: any) => GeometryLabel;
 
@@ -235,8 +235,8 @@ export default class GeometryLabel {
    * @param total
    * @returns
    */
-  protected getLabelAlign(item: LabelItem, index: number, total: number) {
-    let align = 'center';
+  protected getLabelAlign(item: LabelItem, index: number, total: number): TextAlign {
+    let align: TextAlign = 'center';
     const coordinate = this.coordinate;
     if (coordinate.isTransposed) {
       const offset = this.getDefaultOffset(item.offset);
diff --git a/src/geometry/label/interface.ts b/src/geometry/label/interface.ts
index 6efec0a937..6fefbacea9 100644
--- a/src/geometry/label/interface.ts
+++ b/src/geometry/label/interface.ts
@@ -1,6 +1,6 @@
 import { Coordinate } from '../../dependents';
 import { Datum, GeometryLabelCfg, MappingDatum, Point } from '../../interface';
-
+export type TextAlign = 'start' | 'center' | 'end' | 'left' | 'right';
 export interface LabelCfg extends GeometryLabelCfg {
   content?: any;
   position?: 'top' | 'bottom' | 'middle' | 'left' | 'right';
@@ -16,7 +16,7 @@ export interface LabelPointCfg {
   start?: Point;
   color?: string;
   content?: any;
-  textAlign?: 'start' | 'center' | 'end' | 'left' | 'right';
+  textAlign?: TextAlign;
   rotate?: number;
   angle?: number;
   r?: number;
@@ -32,7 +32,7 @@ export interface LabelItem extends GeometryLabelCfg {
   start?: Point;
   color?: string;
   content?: any;
-  textAlign?: 'start' | 'center' | 'end' | 'left' | 'right';
+  textAlign?: TextAlign;
   rotate?: number;
   angle?: number;
   r?: number;