wxpython中自定义事件的实现与使用方法分析

#!/usr/bin/env python
#coding=utf-8
import wx
class MyTestEvent(wx.PyCommandEvent):  #1 定义事件
  def __init__(self, evtType, id):
    wx.PyCommandEvent.__init__(self, evtType, id)
    self.eventArgs = ""
  def GetEventArgs(self):
    return self.eventArgs
  def SetEventArgs(self, args):
    self.eventArgs = args
myEVT_MY_TEST = wx.NewEventType() #2 创建一个事件类型
EVT_MY_TEST = wx.PyEventBinder(myEVT_MY_TEST, 1) #3 创建一个绑定器对象
class MyFrame(wx.Frame):
  def __init__(self):
    wx.Frame.__init__(self, None, -1, "My Frame", size=(300, 300),pos=(300,300))
    panel = wx.Panel(self, -1)
    self.button1 = wx.Button(panel,id=-1,pos=(40, 40),label="button1")
    self.Bind(wx.EVT_BUTTON, self.OnButton1Click, self.button1)
    self.Bind(EVT_MY_TEST, self.OnHandle)# 4绑定事件处理函数
  def OnButton1Click(self,event):
    self.OnDoTest()
  def OnHandle(self,event):#8 事件处理函数
    dlg = wx.MessageDialog(self, event.GetEventArgs(),'A Message Box',wx.OK | wx.ICON_INFORMATION)
    dlg.ShowModal()
    dlg.Destroy()
  def OnDoTest(self):
    evt = MyTestEvent(myEVT_MY_TEST, self.button1.GetId()) #5 创建自定义事件对象
    evt.SetEventArgs("test event")  # 6添加数据到事件
    self.GetEventHandler().ProcessEvent(evt) #7 处理事件
if __name__ == '__main__':
  app = wx.PySimpleApp()
  frame = MyFrame()
  frame.Show(True)
  app.MainLoop()