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Diffstat (limited to 'examples/tools/i18n/languagechooser.cpp')
| -rw-r--r-- | examples/tools/i18n/languagechooser.cpp | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/examples/tools/i18n/languagechooser.cpp b/examples/tools/i18n/languagechooser.cpp new file mode 100644 index 0000000..a8e9779 --- /dev/null +++ b/examples/tools/i18n/languagechooser.cpp @@ -0,0 +1,167 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 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 the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> + +#include "languagechooser.h" +#include "mainwindow.h" + +#ifdef Q_WS_MAC +QT_BEGIN_NAMESPACE +extern void qt_mac_set_menubar_merge(bool merge); +QT_END_NAMESPACE +#endif + +LanguageChooser::LanguageChooser(QWidget *parent) + : QDialog(parent, Qt::WindowStaysOnTopHint) +{ + groupBox = new QGroupBox("Languages"); + + QGridLayout *groupBoxLayout = new QGridLayout; + + QStringList qmFiles = findQmFiles(); + for (int i = 0; i < qmFiles.size(); ++i) { + QCheckBox *checkBox = new QCheckBox(languageName(qmFiles[i])); + qmFileForCheckBoxMap.insert(checkBox, qmFiles[i]); + connect(checkBox, SIGNAL(toggled(bool)), this, SLOT(checkBoxToggled())); + groupBoxLayout->addWidget(checkBox, i / 2, i % 2); + } + groupBox->setLayout(groupBoxLayout); + + buttonBox = new QDialogButtonBox; + + showAllButton = buttonBox->addButton("Show All", + QDialogButtonBox::ActionRole); + hideAllButton = buttonBox->addButton("Hide All", + QDialogButtonBox::ActionRole); + + connect(showAllButton, SIGNAL(clicked()), this, SLOT(showAll())); + connect(hideAllButton, SIGNAL(clicked()), this, SLOT(hideAll())); + + QVBoxLayout *mainLayout = new QVBoxLayout; + mainLayout->addWidget(groupBox); + mainLayout->addWidget(buttonBox); + setLayout(mainLayout); + +#ifdef Q_WS_MAC + qt_mac_set_menubar_merge(false); +#endif + + setWindowTitle("I18N"); +} + +bool LanguageChooser::eventFilter(QObject *object, QEvent *event) +{ + if (event->type() == QEvent::Close) { + MainWindow *window = qobject_cast<MainWindow *>(object); + if (window) { + QCheckBox *checkBox = mainWindowForCheckBoxMap.key(window); + if (checkBox) + checkBox->setChecked(false); + } + } + return QWidget::eventFilter(object, event); +} + +void LanguageChooser::closeEvent(QCloseEvent * /* event */) +{ + qApp->quit(); +} + +void LanguageChooser::checkBoxToggled() +{ + QCheckBox *checkBox = qobject_cast<QCheckBox *>(sender()); + MainWindow *window = mainWindowForCheckBoxMap[checkBox]; + if (!window) { + QTranslator translator; + translator.load(qmFileForCheckBoxMap[checkBox]); + qApp->installTranslator(&translator); + + window = new MainWindow; + window->setPalette(colorForLanguage(checkBox->text())); + + window->installEventFilter(this); + mainWindowForCheckBoxMap.insert(checkBox, window); + } + window->setVisible(checkBox->isChecked()); +} + +void LanguageChooser::showAll() +{ + foreach (QCheckBox *checkBox, qmFileForCheckBoxMap.keys()) + checkBox->setChecked(true); +} + +void LanguageChooser::hideAll() +{ + foreach (QCheckBox *checkBox, qmFileForCheckBoxMap.keys()) + checkBox->setChecked(false); +} + +QStringList LanguageChooser::findQmFiles() +{ + QDir dir(":/translations"); + QStringList fileNames = dir.entryList(QStringList("*.qm"), QDir::Files, + QDir::Name); + QMutableStringListIterator i(fileNames); + while (i.hasNext()) { + i.next(); + i.setValue(dir.filePath(i.value())); + } + return fileNames; +} + +QString LanguageChooser::languageName(const QString &qmFile) +{ + QTranslator translator; + translator.load(qmFile); + + return translator.translate("MainWindow", "English"); +} + +QColor LanguageChooser::colorForLanguage(const QString &language) +{ + uint hashValue = qHash(language); + int red = 156 + (hashValue & 0x3F); + int green = 156 + ((hashValue >> 6) & 0x3F); + int blue = 156 + ((hashValue >> 12) & 0x3F); + return QColor(red, green, blue); +} |