[Fix]修复手动交易组件的Tick更新机制bug

vnpy/trader/uiBasicWidget.py

@@ -721,7 +721,7 @@ class TradingWidget(QtWidgets.QFrame):
         self.gatewayList.extend(gatewayNameList)
 
         self.initUi()
-        self.connectSignal()
+        self.registerEvent()
 
     #----------------------------------------------------------------------
     def initUi(self):
@@ -961,10 +961,6 @@ class TradingWidget(QtWidgets.QFrame):
         self.labelLastPrice.setText('')
         self.labelReturn.setText('')
 
-        # 重新注册事件监听
-        self.eventEngine.unregister(EVENT_TICK + self.symbol, self.signal.emit)
-        self.eventEngine.register(EVENT_TICK + vtSymbol, self.signal.emit)
-
         # 订阅合约
         req = VtSubscribeReq()
         req.symbol = symbol
@@ -984,10 +980,12 @@ class TradingWidget(QtWidgets.QFrame):
     def updateTick(self, event):
         """更新行情"""
         tick = event.dict_['data']
+        if tick.vtSymbol != self.symbol:
+            return
         
-        if tick.vtSymbol == self.symbol:
         if not self.checkFixed.isChecked():
             self.spinPrice.setValue(tick.lastPrice)
+        
         self.labelBidPrice1.setText(str(tick.bidPrice1))
         self.labelAskPrice1.setText(str(tick.askPrice1))
         self.labelBidVolume1.setText(str(tick.bidVolume1))
@@ -1023,9 +1021,10 @@ class TradingWidget(QtWidgets.QFrame):
             self.labelReturn.setText('')
 
     #----------------------------------------------------------------------
-    def connectSignal(self):
-        """连接Signal"""
+    def registerEvent(self):
+        """注册事件监听"""
         self.signal.connect(self.updateTick)
+        self.eventEngine.register(EVENT_TICK, self.signal.emit)        
 
     #----------------------------------------------------------------------
     def sendOrder(self):