创建在gtk中自动更新的控件，同时能控制其他控件

Question

好的，在我学习Python的过程中，我在一个副项目中尝试构建一个gtk应用程序，用来监控水温，并且每10秒更新一次gtk应用中的文本框。我还想要一个倒计时器，可以在gtk中显示，并且每秒刷新一次。我已经用glade和gtk搭建了一个图形界面，但遇到了应用程序卡死和无响应的问题。经过一番阅读，我发现我需要使用线程。可是我对线程一无所知，想知道这里有没有人能帮我。我真的很想学习在使用gtk和Glade作为图形界面构建工具时，如何使用线程。我找到了一段使用gtk的代码，但我还是遇到了一些问题。能不能请大家帮帮我？

import sys
import time
import gtk

from threading import Thread

threadcount=0

class Test (Thread):
    def __init__ (self,button, count=0):
        Thread.__init__(self)
        self.count = count
        self.button=button

    def run (self):
        for i in range(0,10):
            time.sleep(1)
            # Acquire and release the lock each time.
            gtk.threads_enter()
            self.button.set_label("Thread %002d - %d" % (self.count,i))
            gtk.threads_leave()
        gtk.threads_enter()
        self.button.set_label("  Start Thread  ")
        gtk.threads_leave()

def start_new_thread (button, data=None):
    global threadcount
    threadcount += 1
    a = Test(button,threadcount)
    a.start()


def hello(*args):
    """ Callback function that is attached to the button """
    print "Hello World"
    window.destroy()

def destroy(*args):
    """ Callback function that is activated when the program is destoyed
"""
    window.hide()
    gtk.main_quit()

# Initialize threads
gtk.threads_init()

window = gtk.Window(gtk.WINDOW_TOPLEVEL)
window.connect("destroy", destroy)
window.set_border_width(10)

button = gtk.Button("  Start Thread  ")
button.connect("clicked", start_new_thread,button)
window.add(button)
button.show()

window.show_all()
gtk.threads_enter()
gtk.main()
gtk.threads_leave()

这是我尝试使用的代码，简化到只有计时器功能。我不太确定怎么让所有东西都能正常工作。我读到过一些关于gobjects的内容，但我对那方面了解得更少。

import gtk
import time
import sys
import os
import threading

TIME = 0
LOCK = threading.Lock()

class Timer(threading.Thread):
    def __init__(self, nMinutes):
        threading.Thread.__init__(self)
        self.nMin = nMin
    def run(self):
        global TIME
        nSeconds = self.nMinutes*60
        TIME = nSeconds
        startTime = time.time()
        while TIME != 0:
            ElapTime = time.time() - startTime
            LOCK.acquire()
            TIME = nSeconds - ElapTime
            LOCK.release()

class GUI_Timer_Update(threading.Thread):
    def __init__(self, TIME):
        threading.Thread.__init__(self)
        self.TIME = TIME
    def run(self):
        while TIME != 0:
            timeFormatted = self.format_time(TIME)
            LOCK.acquire()
            # Code that updates the GUI after formatting it
            LOCK.release()


    def format_time(self, x):
        minutes, seconds_rem = divmod(x, 60)
        if minutes >= 60:
            hours, minutes_rem = divmod(minutes, 60)
            return "%02d:%02d:%02d" % (hours, minutes_rem, seconds_rem)
        else:
            minutes, seconds_rem = divmod(x, 60)
            return "00:%02d:%02d" % (minutes, seconds_rem)

class GUI(object):
    def __init__(self):
        self.builder = gtk.Builder()
        self.builder.add_from_file("Timer.glade")
        self.window1 = self.builder.get_object("window1")
        self.window1.show()
        self.builder.connect_signals(self)

    def on_window1_destroy(self, object, data=None):
        print "quit on destroy"
        gtk.main_quit()

    def on_startTimer_clicked(self, widget):
        self.timer = self.builder.get_object("timer").get_text() # get time in minutes from timer text box 
        self.timer = int(self.timer) # convert the text to an int

    def on_timerReset_clicked(self, widget):
        self.builder.get_object("timer").set_text('')
        self.builder.get_object("TIME").set_text('')

    def main(self):
        gtk.main()  


if __name__ == "__main__":
    gui = GUI()
    gui.main()

我还想加入一个停止/暂停按钮。任何帮助都非常感谢。谢谢！

gtk 线程控件图形界面 glade 自动更新倒计时器 gobjects

创建在gtk中自动更新的控件，同时能控制其他控件

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