#!/usr/bin/env python ############################################################################# ## ## Copyright (C) 2010 Riverbank Computing Limited. ## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). ## All rights reserved. ## ## This file is part of the examples of PyQt. ## ## $QT_BEGIN_LICENSE:BSD$ ## You may use this file under the terms of the BSD license as follows: ## ## "Redistribution and use in source and binary forms, with or without ## modification, are permitted provided that the following conditions are ## met: ## * Redistributions of source code must retain the above copyright ## notice, this list of conditions and the following disclaimer. ## * Redistributions in binary form must reproduce the above copyright ## notice, this list of conditions and the following disclaimer in ## the documentation and/or other materials provided with the ## distribution. ## * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor ## the names of its contributors may be used to endorse or promote ## products derived from this software without specific prior written ## permission. ## ## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ## $QT_END_LICENSE$ ## ############################################################################# # This is only needed for Python v2 but is harmless for Python v3. import sip sip.setapi('QString', 2) from PyQt4 import QtCore, QtGui try: import i18n_rc3 except ImportError: import i18n_rc2 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_())