#exam.py

import sys
from PyQt4 import QtGui,QtCore
import urllib
import codecs
from BeautifulSoup import BeautifulSoup
import re,time

class MessageBox(QtGui.QWidget):
    def __init__(self,parent=None):
        QtGui.QWidget.__init__(self,parent)
        
        #set the geometry
        self.setGeometry(300,300,500,350)
        self.setWindowTitle('translate')
        
        #add widgets
        self.clearbtn = QtGui.QPushButton("Clear")
        self.titleEdit = QtGui.QLineEdit()
        self.searchbtn = QtGui.QPushButton("Search")
        self.resultEdit = QtGui.QTextEdit()
        
        #layout 
        self.hbox = QtGui.QHBoxLayout()
        self.hbox.addWidget(self.clearbtn)
        self.hbox.addWidget(self.titleEdit)
        self.hbox.addWidget(self.searchbtn)
        
        self.mainbox = QtGui.QVBoxLayout()
        self.mainbox.addLayout(self.hbox)
        self.mainbox.addWidget(self.resultEdit)
        
        self.setLayout(self.mainbox)
        
        self.connect(self.clearbtn,QtCore.SIGNAL('clicked()'),self.clear)
        self.connect(self.searchbtn,QtCore.SIGNAL('clicked()'),self.getMean)
        self.connect(self.titleEdit,QtCore.SIGNAL('returnPressed()'),self.getMean)
         
    #search event
    def getMean(self):
        word = self.titleEdit.text()
        url="http://dict.baidu.com/s?wd=%s&tn=dict" %  word
        self.htmlsourse=unicode(urllib.urlopen(url).read(),"gb2312","ignore").encode("utf-8","ignore")
        soup=BeautifulSoup("".join(self.htmlsourse))
        self.data=str(soup.find("div",{"id":"enc"}))
        soup=BeautifulSoup(self.data)
        self.outtext=''.join([element  for element in soup.recursiveChildGenerator() if isinstance(element,unicode)])
        for item in range(1,10):
            self.outtext=self.outtext.replace(str(item),"\n%s" % str(item))
        self.outtext=self.outtext.replace("  ","\n")
        self.resultEdit.setText(self.outtext)
    
    #clear event
    def clear(self):
        self.titleEdit.setText('')
    
        
    #close event
    def closeEvent(self,event):
        reply = QtGui.QMessageBox.question(self,'message',"Are you sure to quit?",QtGui.QMessageBox.Yes,QtGui.QMessageBox.No)
        if reply == QtGui.QMessageBox.Yes:
            event.accept()
        else:
            event.ignore()

app = QtGui.QApplication(sys.argv)
qb = MessageBox()
qb.show()
sys.exit(app.exec_())