改进计数器编辑、预览状态和行为；修复移除source属性的影响、修改自检期间粘度计每次工作时间、更新翻译

scene/PicScheduleShiftItem.h

@@ -25,7 +25,7 @@ public:
     PicScheduleShiftItem(QGraphicsItem *parent = 0, QGraphicsScene *scene = 0, const SourceType type = SourceType::SCHEDULE_SHIFT);
 
     const QVector<ScheduleModel>& schedules() const;
-    
+
     void setSchedules(QVector<ScheduleModel> schedules);
 
     bool updateScheduleName();
@@ -39,6 +39,8 @@ protected:
 
     virtual QImage itemImage();
 
+    virtual void letterSpaceChanged() override;
+
 private:
 
     QString findScheduleName(const QTime& time);