/**************************************************************************** ** ** Portions Copyright (C) 2012 Research In Motion Limited. ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). ** All rights reserved. ** Contact: Research In Motion Ltd. (http://www.rim.com/company/contact/) ** Contact: Nokia Corporation (qt-info@nokia.com) ** ** This file is part of the examples of the BB10 Platform and is derived ** from a similar file that is part of the Qt Toolkit. ** ** 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 Research In Motion, nor 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." ** ****************************************************************************/ #include <bb/cascades/Application> #include <bb/cascades/Control> #include <bb/cascades/QmlDocument> #include <bb/cascades/Page> #include <QtCore/QStringList> #include "app.hpp" using namespace bb::cascades; /** * These static string literals will be used later on. * We use QT_TRANSLATE_NOOP here to just mark them as 'must-be-translated' * so that lupdate can extract them from the source code. */ static const char * const listEntries[] = { QT_TRANSLATE_NOOP("MainView", "First"), QT_TRANSLATE_NOOP("MainView", "Second"), QT_TRANSLATE_NOOP("MainView", "Third"), 0 }; App::App() : m_translator(0) { setupLanguageModel(); // Load the UI description from main.qml QmlDocument *qml = QmlDocument::create("asset:///main.qml"); // Make the language model and App object available to the UI as context properties qml->setContextProperty("_model", &m_model); qml->setContextProperty("_app", this); // Create the application scene AbstractPane *appPage = qml->createRootObject<AbstractPane>(); Application::instance()->setScene(appPage); // Pre-select the second entry - English setCurrentLanguage(QVariantList() << QVariant(1)); } void App::setCurrentLanguage(const QVariantList &indexPath) { // Retrieve the currently selected language const QString language = m_model.data(indexPath).toString(); // First remove any previous installed translator ... if (m_translator) { qApp->removeTranslator(m_translator); delete m_translator; m_translator = 0; } // ... then create and install a new translator for the selected language ... m_translator = new QTranslator(this); m_translator->load(m_languageMap.value(language)); qApp->installTranslator(m_translator); // ... and trigger the translation of the texts inside the UI. emit retranslate(); m_message.clear(); for (int i = 0; listEntries[i]; ++i) { /** * The static string literals, that have been marked to be translated with * QT_TRANSLATE_NOOP above, are eventually translated here. * Note: The context identifier ('MainView' here) must match with the context identifier * that is used in the QT_TRANSLATE_NOOP declaration. */ m_message += qApp->translate("MainView", listEntries[i]) + "\n"; } emit messageChanged(); } QString App::message() const { return m_message; } void App::setupLanguageModel() { // Retrieve a list of all available translation catalog files ... const QStringList qmFiles = findQmFiles(); // ... fill the internal language name -> catalog file map ... foreach (const QString &qmFile, qmFiles) { m_languageMap.insert(languageName(qmFile), qmFile); } // ... and also fill the language model with the language names. foreach (const QString &language, m_languageMap.keys()) { m_model << language; } } QStringList App::findQmFiles() const { /** * Setup a QDir object that lists the content of the 'translations' directory. * The translations directory does not exists in the file system here but in the Qt Resource * system (that means the files are embedded inside the executable), therefor the * directory name is prefixed with ':/'. */ const QDir dir(":/translations"); // Retrieve all files ending with '.qm' sorted by name QStringList fileNames = dir.entryList(QStringList("*.qm"), QDir::Files, QDir::Name); // Iterate over the list and expand the file names to file paths QMutableStringListIterator it(fileNames); while (it.hasNext()) { it.next(); it.setValue(dir.filePath(it.value())); } return fileNames; } QString App::languageName(const QString &qmFile) const { /** * Create a temporary translator object and return the translated version of * the source string 'English'. In these example catalogs, this source string * has been translated to the language of the catalog (e.g. in i18n_de.qm 'English' * is translated to 'Deutsch' which means 'German'). */ QTranslator translator; translator.load(qmFile); return translator.translate("MainView", "English"); }