如何在 wxPython 中处理多个 EVT_TEXT 事件? [英] How do I handle multiple EVT_TEXT events in wxPython?

问题描述

这是两部分问题的一部分(另一部分是 这里)

所以这就是我要寻找的:绑定到文本控件的 EVT_TEXT 事件的函数，该函数等待几秒钟，然后在延迟时间结束时调用另一个函数.这很容易，但是，每次生成新的 EVT_TEXT 事件时，我都希望它重置延迟时间.我正在寻找的效果是让用户输入文本控件，然后在我假设他们完成后，我运行这个问题的另一部分中描述的函数，该函数对他们所写的内容进行拼写检查.

所以我尝试的简单方法是这样的:

def OnEdit(self, event):对于范围内的 i (0,3):打印我时间.睡眠(1)

但是，无论如何，这只会强制等待 3 秒.如何闯入"此功能以重置计数器?提前致谢.

原来这样做的方法是使用线程.伊皮

解决方案

在 的帮助下构建的完整线程答案这个教程:

from threading import *进口 wx导入时间EVT_RESULT_ID = wx.NewId()def EVT_RESULT(win, func):win.Connect(-1, -1, EVT_RESULT_ID, func)类 MyGui(wx.Frame):def __init__(self):self.spellchkthrd = 无#很多东西self.input = wx.TextCtrl(self.panel, -1, "", size=(200, 150), style=wx.TE_MULTILINE|wx.TE_LEFT|wx.TE_RICH)self.Bind(wx.EVT_TEXT, self.OnEdit, self.input)EVT_RESULT(自我，self.OnSplCheck)def OnEdit(self, event):如果不是 self.spellchkthrd:self.spellchkthrd = SpellCheckThread(self)别的:self.spellchkthrd.newSig()def OnSplCheck(self, event):self.spellchkthrd = 无#所有拼写检查的东西类结果事件(wx.PyEvent):def __init__(self):wx.PyEvent.__init__(self)self.SetEventType(EVT_RESULT_ID)类 SpellCheckThread(线程):def __init__(self, panel):Thread.__init__(self)self.count = 0self.panel = 面板self.start()定义运行(自我):而 self.count <1.0:打印 self.count时间.睡眠(0.1)self.count += 0.1wx.PostEvent(self.panel, ResultEvent())def newSig(self):打印新"self.count = 0

This is one part of a two part question (other part is here)

So here's what I'm looking for: A function which is bound to the EVT_TEXT event of a text control that waits a few seconds, then calls another function at the end of the delay time. Thats easy enough, but, I'd like it to reset the delay time every time a new EVT_TEXT event is generated. The effect I'm looking for is to have a user type into the text control, then after I assume they're done, I run the function described in the other part of this question which spell checks what they've written.

So the simple approach I tried was this:

def OnEdit(self, event):
    for i in range(0,3):
        print i
        time.sleep(1)

However, this just forces a 3 second wait, no matter what. How do I "break in" to this function to reset the counter? Thanks in advance.

EDIT: Turns out the way to do this was with threading. Yippee

解决方案

The full threading answer, built with the help of this tutorial:

from threading import *
import wx
import time

EVT_RESULT_ID = wx.NewId()

def EVT_RESULT(win, func):
    win.Connect(-1, -1, EVT_RESULT_ID, func)

class MyGui(wx.Frame):
    def __init__(self):
        self.spellchkthrd = None
        #lots of stuff

        self.input = wx.TextCtrl(self.panel, -1, "", size=(200, 150), style=wx.TE_MULTILINE|wx.TE_LEFT|wx.TE_RICH)        
        self.Bind(wx.EVT_TEXT, self.OnEdit, self.input)
        EVT_RESULT(self, self.OnSplCheck)    

    def OnEdit(self, event):
        if not self.spellchkthrd:
            self.spellchkthrd = SpellCheckThread(self)  
        else:
            self.spellchkthrd.newSig()

    def OnSplCheck(self, event):
        self.spellchkthrd = None
        #All the spell checking stuff

class ResultEvent(wx.PyEvent):
    def __init__(self):
        wx.PyEvent.__init__(self)
        self.SetEventType(EVT_RESULT_ID)

class SpellCheckThread(Thread):
    def __init__(self, panel):
        Thread.__init__(self)
        self.count = 0
        self.panel = panel
        self.start()

    def run(self):
        while self.count < 1.0:
            print self.count
            time.sleep(0.1)            
            self.count += 0.1

        wx.PostEvent(self.panel, ResultEvent())

    def newSig(self):
        print "new"
        self.count = 0

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