feat: bar column label position

Author: ulleo

frontend/src/views/chat/component/charts/Bar.ts

@@ -113,6 +113,12 @@ export class Bar extends BaseG2Chart {
             }
             return `${value}${_data.isPercent ? '%' : ''}`
           },
+          position: (data: any) => {
+            if (data[y[0].value] < 0) {
+              return 'left'
+            }
+            return 'right'
+          },
           transform: [
             { type: 'contrastReverse' },
             { type: 'exceedAdjust' },

frontend/src/views/chat/component/charts/Column.ts

@@ -102,7 +102,12 @@ export class Column extends BaseG2Chart {
             }
             return `${value}${_data.isPercent ? '%' : ''}`
           },
-          position: 'top',
+          position: (data: any) => {
+            if (data[y[0].value] < 0) {
+              return 'bottom'
+            }
+            return 'top'
+          },
           transform: [
             { type: 'contrastReverse' },
             { type: 'exceedAdjust' },