动态更改应用程序的翻译与PyQt的

问题描述：

我创建一个组合框，让用户选择的文本语言的简单窗口的组合框整个应用程序动态更改应用程序的翻译与PyQt的

我已经创建了必要的.qm文件显示，并且当我开始应用程序时，文本正在更新。但是，我怎样才能将它链接到组合框上的选项，并从mainWindow内部改变语言？

我的代码：

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

''' 
GUI 

''' 

import sys 
import os.path as osp 
import os 
from PyQt4 import QtGui, QtCore 

class MainWindow(QtGui.QWidget): 

    def __init__(self): 
     super(MainWindow,self).__init__() 

     # Set MainWindow geometry, use settings of last session. If it's first session, 
     # use defaulted settings 
     self.settings = QtCore.QSettings('Paul',QtCore.QSettings.NativeFormat) 
     self.resize(self.settings.value("size", QtCore.QSize(500, 300)).toSize()) 
     self.move(self.settings.value("pos", QtCore.QPoint(5, 5)).toPoint()); 

     self.initUI() 


    def closeEvent(self, e): 
     #Save MainWindow geometry session when closing the window 
     self.settings.setValue("size",self.size()) 
     self.settings.setValue("pos",self.pos()) 
     e.accept() 

    def initUI(self): 

     self.hbox = QtGui.QVBoxLayout(self) # Create Vertival box layout to put the buttons 
     self.myButtons = QtGui.QPushButton('button',self) #create push button 
     self.myButtons.setStyleSheet("""QPushButton { background-color: red; font:bold 20px}""") 
     self.myButtons.setToolTip('Push this button') 
     self.myButtons.setText(self.tr('yes')) 
     comboBox=QtGui.QComboBox(self) #create drop down menu 
     comboBox.addItem('English') 
     comboBox.addItem('Portugues') 
     self.hbox.addWidget(comboBox,1,QtCore.Qt.AlignRight) #add drop down menu to box layout 
     self.hbox.addStretch(3)  # set separation between buttons 
     self.hbox.addWidget(self.myButtons,1,QtCore.Qt.AlignRight) #add button to box layout 


     self.setWindowTitle('Test2') 


     self.show() 



def main(): 

    app = QtGui.QApplication(sys.argv) 
    translator = QtCore.QTranslator() 
    translator.load("~/translations/qt_pt.qm") 
    app.installTranslator(translator) 
    app.setWindowIcon(QtGui.QIcon(path)) 
    ex = MainWindow() 
    sys.exit(app.exec_()) 


if __name__ == '__main__': 
    main()

基本上我想有组合框做这样的事情：

self.comboBox.currentIndexChanged.connect(self.combochange) 

def combochange(self): 
    if self.comboBox.currentText()=='Portugues': 
     translator = QtCore.QTranslator() 
     translator.load('~/translations/qt_pt.qm') 
     app.installTranslator(translator) #Obviously this doesn't work

我想我不得不从主窗口的参数某种方式传递给主（）函数并重新载入所有内容。

这甚至可能吗？

的Python 2.7，QT 5.9.1，PyQt4的4.12.1在OSX 10.11.6

编辑：

我发现this后QT维基页面上的我想要做什么，不幸的是我根本不精通C语言。如果有人可以帮我翻译这个python，我将不胜感激。

答

好吧，我发现了一个办法做到这一点，我不知道这是否是一个非常“Python化”解决方案，但它的工作原理

我的main（）函数现在看起来像这样：

if __name__ == '__main__': 
    lang =1 #default language 
    i=0 
    while i>=0: 
     i=i+1 
     if lang == 1: 
      print "i'm english" 
      if i>1: 
       app2=None # to erase the previous aplication when we loop between two language choices 
      app = QtGui.QApplication(sys.argv) 
      translator = QtCore.QTranslator() 
      translator.load("~/translations/qt_pt.qm") 
      app.removeTranslator(translator) 
      ex = MainWindow(lang) 
      ex.show() 
      lang =app.exec_() 

     elif lang==0: 
      print "i'm portuguese" 
      app=None 
      app2 = QtGui.QApplication(sys.argv) 
      translator = QtCore.QTranslator() 
      translator.load("~/translations/qt_pt.qm") 
      app2.installTranslator(translator) 
      ex = MainWindow(lang) 
      ex.show() 
      lang=app2.exec_() 
      print "im here"

到现在的语言我aplication需要加载，在我定义我的“combochange”功能，像这样的组合框以下用户输入：

def combochange(self,e): 
    #print self.comboBox.currentText() 
    if self.comboBox.currentText()=="Portugues": 
     MainWindow.lang=0 
     QtGui.qApp.exit(MainWindow.lang) 

    else: 
     MainWindow.lang=1 
     QtGui.qApp.exit(MainWindow.lang)

“lang”是我外界传递，它会触发一个应用程序关闭并以不同的语言重新打开。

它看起来不太优雅，但它的工作原理。

完整的代码是：

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

''' 
GUI 

''' 

import sys 
import os.path as osp 
import os 
from PyQt4 import QtGui, QtCore 

class MainWindow(QtGui.QWidget): 

    def __init__(self,lang2): 

     super(MainWindow,self).__init__() 

     # Set MainWindow geometry, use settings of last session. If it's first session, 
     # use defaulted settings 
     self.settings = QtCore.QSettings('Paul',QtCore.QSettings.NativeFormat) 
     self.resize(self.settings.value("size", QtCore.QSize(500, 300)).toSize()) 
     self.move(self.settings.value("pos", QtCore.QPoint(5, 5)).toPoint()); 

     self.initUI(lang2) 

    def closeEvent(self, e): 
     #Save MainWindow geometry session when closing the window 
     self.settings.setValue("size",self.size()) 
     self.settings.setValue("pos",self.pos()) 
     e.accept() 
     sys.exit() 

    def initUI(self,lang2): 

     self.hbox = QtGui.QVBoxLayout(self) # Create Vertival box layout to put the buttons 
     self.myButtons = QtGui.QPushButton('button',self) #create push button 
     self.myButtons.setStyleSheet("""QPushButton { background-color: red; font:bold 20px}""") 
     self.myButtons.setToolTip('Push this button') 
     #self.myButtons.setText(QtCore.QString(self.tr('yes'))) 
     self.myButtons.setText(self.tr("yes")) 
     self.comboBox=QtGui.QComboBox(self) #create drop down menu 
     if lang2 == 1: 
      self.comboBox.addItem('English') 
      self.comboBox.addItem('Portugues') 
     else: 
      self.comboBox.addItem('Portugues') 
      self.comboBox.addItem('English')    
     self.comboBox.currentIndexChanged.connect(self.combochange) 
     self.hbox.addWidget(self.comboBox,1,QtCore.Qt.AlignRight) #add drop down menu to box layout 
     self.hbox.addStretch(3)  # set separation between buttons 
     self.myButtons.clicked.connect(self.buttonClicked) # what should the button do 
     self.hbox.addWidget(self.myButtons,1,QtCore.Qt.AlignRight) #add button to box layout 

     self.setWindowTitle('Test2') 

    def combochange(self,e): 
     #print self.comboBox.currentText() 
     if self.comboBox.currentText()=="Portugues": 
      MainWindow.lang=0 
      QtGui.qApp.exit(MainWindow.lang) 

     else: 
      MainWindow.lang=1 
      QtGui.qApp.exit(MainWindow.lang) 

    def buttonClicked(self): 

     msbox= QtGui.QMessageBox() 
     choice=msbox.warning(self,'ok',"This button doesn't do anything!!!") 

     if choice == QtGui.QMessageBox.No: 
      print('nanan') 
     else: 
      print('Bye') 
      self.settings.setValue("size",self.size()); 
      self.settings.setValue("pos",self.pos()); 
      sys.exit() 

if __name__ == '__main__': 
    lang =1 
    i=0 
    while i>=0: 
     i=i+1 
     print i 
     if lang == 1: 
      print "i'm english" 
      if i>1: 
       app2=None 
      app = QtGui.QApplication(sys.argv) 
      translator = QtCore.QTranslator() 
      translator.load("/Users/paulmota/Documents/BlueBerryProject/basefiles/translations/qt_pt.qm") 
      app.removeTranslator(translator) 
      ex = MainWindow(lang) 
      ex.show() 
      lang =app.exec_() 

     elif lang==0: 
      print "i'm portuguese" 
      app=None 
      app2 = QtGui.QApplication(sys.argv) 
      translator = QtCore.QTranslator() 
      translator.load("/Users/paulmota/Documents/BlueBerryProject/basefiles/translations/qt_pt.qm") 
      app2.installTranslator(translator) 
      ex = MainWindow(lang) 
      ex.show() 
      lang=app2.exec_() 
      print "im here"

答

这里是一个更拨款的方式来做到这一点：那就是它

#create a new translator and load the desired translation file 
translator = QtCore.QTranslator() 
translator.load("monAppli_fr.qm") 

#install translator to the app 
#app is the variable created in (if __name__ == "__main__":) section, make it gloabl 
app.installTranslator(translator) 
#call retranslateUi on ui, which is defined in the same section as app 
#MainWindow : created in the same section 
ui.retranslateUi(MainWindow)

，我if __name__ == '__main__':部分看起来像：

if __name__ == "__main__": 
import sys 
app = QtGui.QApplication(sys.argv) 
MainWindow = QtGui.QMainWindow() 
ui = Ui_MainWindow() 
ui.setupUi(MainWindow) 
MainWindow.show() 
sys.exit(app.exec_())

动态更改应用程序的翻译与PyQt的

相关推荐