修正问题

src/app/working-area/working-area.component.ts

@@ -1007,6 +1007,7 @@ export class WorkingAreaComponent extends EventEmitter implements OnInit, AfterV
    * 开始绘制
    */
   public beginPaint() {
+    this.selection.deselectAll();
     this.setPaintMode(PaintMode.endPaint);
     this.setPaintMode(this.canvasData.selectTemplateData.interactiveMode);
   }
@@ -1197,6 +1198,7 @@ export class WorkingAreaComponent extends EventEmitter implements OnInit, AfterV
       }
       this.selection.select(this.backgroundImage.getChildByName(newData.Id));
     });
+    this.emit('backgroundScale', this.backgroundImage.scale.x);
   }
 
 }