gtk-gtr2.py

gistfile1.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import pygtk
pygtk.require ('2.0')
import gtk

from urllib2 import urlopen
from urllib import urlencode
import urllib2
import urllib
import simplejson
import sys
from threading import Thread
import gobject

def translate(text):
    sl="zh-tw"
    tl="en"
    langpair='%s|%s'%(tl,sl)

    base_url='http://ajax.googleapis.com/ajax/services/language/translate?'
    data = urllib.urlencode({'v':1.0,'ie': 'UTF8', 'q': text,
                             'langpair':langpair})

    url = base_url+data
    search_results = urllib.urlopen(url)
    json = simplejson.loads(search_results.read())

    result = json['responseData']['translatedText']
    return result

class TransThread (Thread):
    def __init__(self, text, obj):
        self.text = text
        self.obj = obj
        Thread.__init__(self)

    def run(self):
        try:
            self.result = translate(self.text)
        except:
            self.result = "error"
        gtk.gdk.threads_enter()
        self.obj.emit("thread-complete")
        gtk.gdk.threads_leave()

class Translation (gtk.Object):
    def __init__ (self):
        self.__gobject_init__()
        self.builder = gtk.Builder()
        self.builder.add_from_file ("translation.xml")
        
        self.builder.connect_signals(self)

        win = self.builder.get_object("window1")
        win.show_all()
        gobject.signal_new("thread-complete",
            Translation,
            gobject.SIGNAL_RUN_FIRST,
            gobject.TYPE_NONE, ())

        self.connect ("thread-complete", self.thread_complete)

    def thread_complete (self, widget):
        print "complete"
        button = self.builder.get_object ("button_tr")
        button.set_label ("翻譯")
        button.set_sensitive (True)

        buff = self.builder.get_object("textview_result").get_buffer()
        buff.delete (buff.get_start_iter(), buff.get_end_iter())
        buff.insert (buff.get_start_iter(), self.thread.result)

    def on_window_delete_event (self, window, data):
        gtk.main_quit()

    def on_button_tr_clicked (self, data):
        button = self.builder.get_object ("button_tr")
        button.set_label ("翻譯中…")
        button.set_sensitive (False)

        buff = self.builder.get_object("textview_orig").get_buffer()
        text = buff.get_text(buff.get_start_iter(), buff.get_end_iter())
        self.thread = TransThread (text, self)
        self.thread.start ()

if __name__ == "__main__":
    gobject.type_register (Translation)

    gtk.gdk.threads_init()
    t = Translation()
    gtk.main()

能提供 translation.xml 吗?

sure, https://gist.github.com/804046