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#!/usr/bin/env python
#############################################################################
##
## Copyright (C) 2004-2005 Trolltech AS. All rights reserved.
##
## This file is part of the example classes of the Qt Toolkit.
##
## This file may be used under the terms of the GNU General Public
## License version 2.0 as published by the Free Software Foundation
## and appearing in the file LICENSE.GPL included in the packaging of
## this file. Please review the following information to ensure GNU
## General Public Licensing requirements will be met:
## http://www.trolltech.com/products/qt/opensource.html
##
## If you are unsure which license is appropriate for your use, please
## review the following information:
## http://www.trolltech.com/products/qt/licensing.html or contact the
## sales department at sales@trolltech.com.
##
## This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
## WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
##
#############################################################################
# This is only needed for Python v2 but is harmless for Python v3.
import sip
sip.setapi('QString', 2)
from PyQt4 import QtCore, QtGui
import i18n_rc
class LanguageChooser(QtGui.QDialog):
def __init__(self, parent=None):
super(LanguageChooser, self).__init__(parent,
QtCore.Qt.WindowStaysOnTopHint)
self.qmFileForCheckBoxMap = {}
self.mainWindowForCheckBoxMap = {}
groupBox = QtGui.QGroupBox("Languages")
groupBoxLayout = QtGui.QGridLayout()
qmFiles = self.findQmFiles()
for i, qmf in enumerate(qmFiles):
checkBox = QtGui.QCheckBox(self.languageName(qmf))
self.qmFileForCheckBoxMap[checkBox] = qmf
checkBox.toggled.connect(self.checkBoxToggled)
groupBoxLayout.addWidget(checkBox, i / 2, i % 2)
groupBox.setLayout(groupBoxLayout)
buttonBox = QtGui.QDialogButtonBox()
showAllButton = buttonBox.addButton("Show All",
QtGui.QDialogButtonBox.ActionRole)
hideAllButton = buttonBox.addButton("Hide All",
QtGui.QDialogButtonBox.ActionRole)
showAllButton.clicked.connect(self.showAll)
hideAllButton.clicked.connect(self.hideAll)
mainLayout = QtGui.QVBoxLayout()
mainLayout.addWidget(groupBox)
mainLayout.addWidget(buttonBox)
self.setLayout(mainLayout)
if hasattr(QtGui, 'qt_mac_set_menubar_merge'):
QtGui.qt_mac_set_menubar_merge(False)
self.setWindowTitle("I18N")
def eventFilter(self, object, event):
if event.type() == QtCore.QEvent.Close:
if isinstance(object, MainWindow):
window = object
for checkBox, w in self.mainWindowForCheckBoxMap.items():
if w is window:
break
else:
checkBox = None
if checkBox:
checkBox.setChecked(False)
return QtGui.QWidget.eventFilter(self, object, event)
def closeEvent(self, event):
QtGui.qApp.quit()
def checkBoxToggled(self):
checkBox = self.sender()
window = self.mainWindowForCheckBoxMap.get(checkBox)
if not window:
translator = QtCore.QTranslator()
translator.load(self.qmFileForCheckBoxMap[checkBox])
QtGui.qApp.installTranslator(translator)
# Because we will be installing an event filter for the main window
# it is important that this instance isn't garbage collected before
# the main window when the program terminates. We ensure this by
# making the main window a child of this one.
window = MainWindow(self)
window.setPalette(QtGui.QPalette(self.colorForLanguage(checkBox.text())))
window.installEventFilter(self)
self.mainWindowForCheckBoxMap[checkBox] = window
window.setVisible(checkBox.isChecked())
def showAll(self):
for checkBox in self.qmFileForCheckBoxMap.keys():
checkBox.setChecked(True)
def hideAll(self):
for checkBox in self.qmFileForCheckBoxMap.keys():
checkBox.setChecked(False)
def findQmFiles(self):
trans_dir = QtCore.QDir(':/translations')
fileNames = trans_dir.entryList(['*.qm'], QtCore.QDir.Files,
QtCore.QDir.Name)
return [trans_dir.filePath(fn) for fn in fileNames]
def languageName(self, qmFile):
translator = QtCore.QTranslator()
translator.load(qmFile)
return translator.translate("MainWindow", "English")
def colorForLanguage(self, language):
hashValue = hash(language)
red = 156 + (hashValue & 0x3F)
green = 156 + ((hashValue >> 6) & 0x3F)
blue = 156 + ((hashValue >> 12) & 0x3F)
return QtGui.QColor(red, green, blue)
class MainWindow(QtGui.QMainWindow):
listEntries = [QtCore.QT_TRANSLATE_NOOP("MainWindow", "First"),
QtCore.QT_TRANSLATE_NOOP("MainWindow", "Second"),
QtCore.QT_TRANSLATE_NOOP("MainWindow", "Third")]
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.centralWidget = QtGui.QWidget()
self.setCentralWidget(self.centralWidget)
self.createGroupBox()
listWidget = QtGui.QListWidget()
for le in MainWindow.listEntries:
listWidget.addItem(self.tr(le))
mainLayout = QtGui.QVBoxLayout()
mainLayout.addWidget(self.groupBox)
mainLayout.addWidget(listWidget)
self.centralWidget.setLayout(mainLayout)
exitAction = QtGui.QAction(self.tr("E&xit"), self,
triggered=QtGui.qApp.quit)
fileMenu = self.menuBar().addMenu(self.tr("&File"))
fileMenu.setPalette(QtGui.QPalette(QtCore.Qt.red))
fileMenu.addAction(exitAction)
self.setWindowTitle(self.tr("Language: %s") % self.tr("English"))
self.statusBar().showMessage(self.tr("Internationalization Example"))
if self.tr("LTR") == "RTL":
self.setLayoutDirection(QtCore.Qt.RightToLeft)
def createGroupBox(self):
self.groupBox = QtGui.QGroupBox(self.tr("View"))
perspectiveRadioButton = QtGui.QRadioButton(self.tr("Perspective"))
isometricRadioButton = QtGui.QRadioButton(self.tr("Isometric"))
obliqueRadioButton = QtGui.QRadioButton(self.tr("Oblique"))
perspectiveRadioButton.setChecked(True)
self.groupBoxLayout = QtGui.QVBoxLayout()
self.groupBoxLayout.addWidget(perspectiveRadioButton)
self.groupBoxLayout.addWidget(isometricRadioButton)
self.groupBoxLayout.addWidget(obliqueRadioButton)
self.groupBox.setLayout(self.groupBoxLayout)
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
chooser = LanguageChooser()
chooser.show()
sys.exit(app.exec_())
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