合并1.6.1版本的event Engine
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msincenselee
parent
af2c382132
commit
1a83b9b2c7
@ -4,6 +4,7 @@
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from Queue import Queue, Empty
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from threading import Thread
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from time import sleep
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from collections import defaultdict
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# 第三方模块
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from PyQt4.QtCore import QTimer
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@ -16,7 +17,6 @@ from eventType import *
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class EventEngine(object):
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"""
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事件驱动引擎
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事件驱动引擎中所有的变量都设置为了私有，这是为了防止不小心
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从外部修改了这些变量的值或状态，导致bug。
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@ -68,7 +68,10 @@ class EventEngine(object):
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# 这里的__handlers是一个字典，用来保存对应的事件调用关系
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# 其中每个键对应的值是一个列表，列表中保存了对该事件进行监听的函数功能
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self.__handlers = {}
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self.__handlers = defaultdict(list)
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# __generalHandlers是一个列表，用来保存通用回调函数（所有事件均调用）
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self.__generalHandlers = []
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#----------------------------------------------------------------------
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def __run(self):
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@ -90,7 +93,11 @@ class EventEngine(object):
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# 以上语句为Python列表解析方式的写法，对应的常规循环写法为：
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#for handler in self.__handlers[event.type_]:
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#handler(event)
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#handler(event)
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# 调用通用处理函数进行处理
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if self.__generalHandlers:
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[handler(event) for handler in self.__generalHandlers]
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#----------------------------------------------------------------------
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def __onTimer(self):
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@ -102,8 +109,11 @@ class EventEngine(object):
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self.put(event)
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#----------------------------------------------------------------------
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def start(self):
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"""引擎启动"""
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def start(self, timer=True):
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"""
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引擎启动
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timer：是否要启动计时器
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"""
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# 将引擎设为启动
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self.__active = True
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@ -111,7 +121,8 @@ class EventEngine(object):
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self.__thread.start()
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# 启动计时器，计时器事件间隔默认设定为1秒
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self.__timer.start(1000)
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if timer:
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self.__timer.start(1000)
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#----------------------------------------------------------------------
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def stop(self):
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@ -128,12 +139,8 @@ class EventEngine(object):
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#----------------------------------------------------------------------
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def register(self, type_, handler):
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"""注册事件处理函数监听"""
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# 尝试获取该事件类型对应的处理函数列表，若无则创建
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try:
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handlerList = self.__handlers[type_]
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except KeyError:
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handlerList = []
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self.__handlers[type_] = handlerList
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# 尝试获取该事件类型对应的处理函数列表，若无defaultDict会自动创建新的list
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handlerList = self.__handlers[type_]
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# 若要注册的处理器不在该事件的处理器列表中，则注册该事件
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if handler not in handlerList:
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@ -143,24 +150,34 @@ class EventEngine(object):
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def unregister(self, type_, handler):
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"""注销事件处理函数监听"""
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# 尝试获取该事件类型对应的处理函数列表，若无则忽略该次注销请求
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try:
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handlerList = self.__handlers[type_]
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handlerList = self.__handlers[type_]
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# 如果该函数存在于列表中，则移除
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if handler in handlerList:
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handlerList.remove(handler)
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# 如果该函数存在于列表中，则移除
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if handler in handlerList:
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handlerList.remove(handler)
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# 如果函数列表为空，则从引擎中移除该事件类型
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if not handlerList:
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del self.__handlers[type_]
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# 如果函数列表为空，则从引擎中移除该事件类型
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if not handlerList:
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del self.__handlers[type_]
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except KeyError:
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pass
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#----------------------------------------------------------------------
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def put(self, event):
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"""向事件队列中存入事件"""
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self.__queue.put(event)
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#----------------------------------------------------------------------
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def registerGeneralHandler(self, handler):
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"""注册通用事件处理函数监听"""
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if handler not in self.__generalHandlers:
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self.__generalHandlers.append(handler)
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#----------------------------------------------------------------------
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def unregisterGeneralHandler(self, handler):
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"""注销通用事件处理函数监听"""
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if handler in self.__generalHandlers:
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self.__generalHandlers.remove(handler)
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########################################################################
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class EventEngine2(object):
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@ -187,7 +204,10 @@ class EventEngine2(object):
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# 这里的__handlers是一个字典，用来保存对应的事件调用关系
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# 其中每个键对应的值是一个列表，列表中保存了对该事件进行监听的函数功能
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self.__handlers = {}
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self.__handlers = defaultdict(list)
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# __generalHandlers是一个列表，用来保存通用回调函数（所有事件均调用）
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self.__generalHandlers = []
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#----------------------------------------------------------------------
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def __run(self):
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@ -209,7 +229,11 @@ class EventEngine2(object):
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# 以上语句为Python列表解析方式的写法，对应的常规循环写法为：
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#for handler in self.__handlers[event.type_]:
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#handler(event)
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#handler(event)
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# 调用通用处理函数进行处理
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if self.__generalHandlers:
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[handler(event) for handler in self.__generalHandlers]
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#----------------------------------------------------------------------
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def __runTimer(self):
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@ -225,8 +249,11 @@ class EventEngine2(object):
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sleep(self.__timerSleep)
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#----------------------------------------------------------------------
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def start(self):
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"""引擎启动"""
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def start(self, timer=True):
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"""
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引擎启动
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timer：是否要启动计时器
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"""
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# 将引擎设为启动
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self.__active = True
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@ -234,8 +261,9 @@ class EventEngine2(object):
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self.__thread.start()
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# 启动计时器，计时器事件间隔默认设定为1秒
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self.__timerActive = True
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self.__timer.start()
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if timer:
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self.__timerActive = True
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self.__timer.start()
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#----------------------------------------------------------------------
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def stop(self):
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@ -253,12 +281,8 @@ class EventEngine2(object):
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#----------------------------------------------------------------------
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def register(self, type_, handler):
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"""注册事件处理函数监听"""
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# 尝试获取该事件类型对应的处理函数列表，若无则创建
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try:
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handlerList = self.__handlers[type_]
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except KeyError:
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handlerList = []
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self.__handlers[type_] = handlerList
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# 尝试获取该事件类型对应的处理函数列表，若无defaultDict会自动创建新的list
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handlerList = self.__handlers[type_]
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# 若要注册的处理器不在该事件的处理器列表中，则注册该事件
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if handler not in handlerList:
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@ -268,24 +292,33 @@ class EventEngine2(object):
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def unregister(self, type_, handler):
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"""注销事件处理函数监听"""
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# 尝试获取该事件类型对应的处理函数列表，若无则忽略该次注销请求
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try:
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handlerList = self.__handlers[type_]
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handlerList = self.__handlers[type_]
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# 如果该函数存在于列表中，则移除
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if handler in handlerList:
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handlerList.remove(handler)
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# 如果该函数存在于列表中，则移除
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if handler in handlerList:
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handlerList.remove(handler)
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# 如果函数列表为空，则从引擎中移除该事件类型
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if not handlerList:
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del self.__handlers[type_]
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except KeyError:
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pass
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# 如果函数列表为空，则从引擎中移除该事件类型
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if not handlerList:
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del self.__handlers[type_]
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#----------------------------------------------------------------------
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def put(self, event):
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"""向事件队列中存入事件"""
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self.__queue.put(event)
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#----------------------------------------------------------------------
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def registerGeneralHandler(self, handler):
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"""注册通用事件处理函数监听"""
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if handler not in self.__generalHandlers:
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self.__generalHandlers.append(handler)
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#----------------------------------------------------------------------
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def unregisterGeneralHandler(self, handler):
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"""注销通用事件处理函数监听"""
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if handler in self.__generalHandlers:
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self.__generalHandlers.remove(handler)
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########################################################################
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class Event:
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@ -311,7 +344,8 @@ def test():
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app = QCoreApplication(sys.argv)
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ee = EventEngine2()
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ee.register(EVENT_TIMER, simpletest)
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#ee.register(EVENT_TIMER, simpletest)
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ee.registerGeneralHandler(simpletest)
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ee.start()
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app.exec_()
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