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我正在尝试管理包含“其他文件”的文件（许多小文件存储在几个大文件中）。“引擎”工作得很好，但我对 GUI 有一些问题。由于处理时间的原因，某些函数是线程化的，例如删除或添加文件。以下是部分代码：

import gtk, os, data, time, threading, subprocess
import Image, re
gtk.gdk.threads_init()

#some unimportant code - creating window with some buttons and IconView item (to show elements in currently opened directory)
    def _del_thread(self): #deletes items selected in gtk.IconView
        dl, fl = self.items #self.items stores selected dirs and files
        for d in dl:
            self.changestatus('Deleting: '+data.dirs[d][0]+'...') #prints the text at StatusBar (data.dirs[d][0] is a filename)
            data.RemoveDir(d) #recursively removes all content in directory d
        for f in fl:
            self.changestatus('Usuwanie pliku: '+data.files[f][0]+'...')
            data.PopFile(f) #removes single file
        self.changestatus('') #clears the StatusBar
        self.refresh() #some elements are deleted - refresh IconView

    def _add_thread(self, fl): #adds files listed in fl
        for f in fl:
            self.changestatus('Adding: '+f[-50:]+'...')
            #some unimportant code (recognizing file's extension and generating a thumbnail
            data.PutFile(f, thumb, self.dir) #adds the file with generated thumbnail to currently opened directory (self.dir)
        self.changestatus('') #clears the StatusBar
        self.refresh() #some elements are added - refresh IconView

    def Delete(self, widget): #triggered by clicking a context-menu item
        md = gtk.MessageDialog(None, gtk.DIALOG_DESTROY_WITH_PARENT, \
                               gtk.MESSAGE_QUESTION, gtk.BUTTONS_OK_CANCEL, \
                               "Do you want to remove selected items?")
        res = md.run()
        md.destroy()
        if res == gtk.RESPONSE_OK:
            t = threading.Thread(target=self._del_thread) #start new thread
            t.start()

    def Add(self, widget): #triggered by clicking a context-menu item
        chooser = gtk.FileChooserDialog(title='Select files to add...',action=gtk.FILE_CHOOSER_ACTION_OPEN,
                                        buttons=(gtk.STOCK_CANCEL,gtk.RESPONSE_CANCEL,gtk.STOCK_OPEN,gtk.RESPONSE_OK))
        chooser.set_select_multiple(True)
        response = chooser.run()
        if response == gtk.RESPONSE_OK:
            #star new thread with selected files' list as an argument
            t = threading.Thread(target=self._add_thread, args=(chooser.get_filenames(),))
            t.start()
        chooser.destroy()

还有第三个函数在线程中运行，但这并不重要。它很快（约 1 秒），始终执行良好并且从不冻结窗口。另外两个（如上所示）有时执行得很好，有时则不然。例如，我在 FileChooserDialog 中选择了一些文件，添加线程启动，StatusBar 连续显示正在添加的文件，最后窗口冻结。之后窗口看起来像这样（对不起波兰描述）： pygtk窗口+线程，窗口冻结 为什么线程有时处理没有问题，有时没有？

最好的问候， mopsiok

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1 回答 1

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我想我找到了问题所在。根据http://faq.pygtk.org/index.py?file=faq20.006.htp&req=show，我必须在线程中的每个 gtk 函数之前添加 gtk.threads_enter() ，然后在它之后添加 gtk.threads_close() . 现在它似乎工作正常。

于 2013-03-27T22:00:39.370 回答