修改策略显示模块，增加“强行初始化”。

vn.trader/ctaAlgo/ctaEngine.py

@@ -177,6 +177,33 @@ class CtaEngine(object):
         else:
             self.writeCtaLog(u'委托单({0}不存在'.format(vtOrderID))
 
+    # ----------------------------------------------------------------------
+    def cancelOrders(self, symbol, offset=EMPTY_STRING):
+        """撤销所有单"""
+        # Symbol参数:指定合约的撤单；
+        # OFFSET参数:指定Offset的撤单,缺省不填写时，为所有
+
+        l = self.mainEngine.getAllWorkingOrders()
+
+        self.writeCtaLog(u'撤销所有订单,数量:{0}'.format(len(l)))
+
+        for order in l:
+            if offset == EMPTY_STRING:
+                offsetCond = True
+            else:
+                offsetCond = order.offset == offset
+
+            if order.symbol == symbol and offsetCond:
+                req = VtCancelOrderReq()
+                req.symbol = order.symbol
+                req.exchange = order.exchange
+                req.frontID = order.frontID
+                req.sessionID = order.sessionID
+                req.orderID = order.orderID
+                self.writeCtaLog(u'撤单:{0}/{1},{2}{3}手'
+                                 .format(order.symbol, order.orderID, order.offset, order.totalVolume-order.tradedVolume))
+                self.mainEngine.cancelOrder(req, order.gatewayName)
+
     # ----------------------------------------------------------------------
     def sendStopOrder(self, vtSymbol, orderType, price, volume, strategy):
         """发停止单（本地实现）"""
@@ -302,6 +329,8 @@ class CtaEngine(object):
         # 1.获取事件的Order数据
         order = event.dict_['data']
 
+        # order.vtOrderID 在gateway中，已经格式化为 gatewayName.vtOrderID
+
         # 2.判断order是否在映射字典中
         if order.vtOrderID in self.orderStrategyDict:
             # 3.提取对应的策略
@@ -478,13 +507,13 @@ class CtaEngine(object):
                 self.writeCtaLog(u'%s的交易合约%s无法找到' %(name, strategy.vtSymbol))
 
     #----------------------------------------------------------------------
-    def initStrategy(self, name):
+    def initStrategy(self, name, force = False):
         """初始化策略"""
         if name in self.strategyDict:
             strategy = self.strategyDict[name]
             
-            if not strategy.inited:
+            if not strategy.inited or force == True:
-                strategy.onInit()
+                strategy.onInit(force=force)
                 strategy.inited = True
             else:
                 self.writeCtaLog(u'请勿重复初始化策略实例：%s' %name)

vn.trader/ctaAlgo/uiCtaWidget.py

@@ -88,14 +88,18 @@ class CtaStrategyManager(QtGui.QGroupBox):
         buttonInit = QtGui.QPushButton(u'初始化')
         buttonStart = QtGui.QPushButton(u'启动')
         buttonStop = QtGui.QPushButton(u'停止')
+        buttonInitForce = QtGui.QPushButton(u'强制初始化')
         buttonInit.clicked.connect(self.init)
         buttonStart.clicked.connect(self.start)
         buttonStop.clicked.connect(self.stop)
+        buttonInitForce.clicked.connect(self.initForce)
         
         hbox1 = QtGui.QHBoxLayout()     
         hbox1.addWidget(buttonInit)
         hbox1.addWidget(buttonStart)
         hbox1.addWidget(buttonStop)
+        hbox1.addWidget(buttonInitForce)
+
         hbox1.addStretch()
         
         hbox2 = QtGui.QHBoxLayout()
@@ -133,6 +137,11 @@ class CtaStrategyManager(QtGui.QGroupBox):
         """初始化策略"""
         self.ctaEngine.initStrategy(self.name)
 
+    def initForce(self):
+
+        """强制初始化策略"""
+        self.ctaEngine.initStrategy(self.name,force = True)
+
     #----------------------------------------------------------------------
     def start(self):
         """启动策略"""