/****************************************************************************+
−
**+
−
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
−
** All rights reserved.+
−
** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying+
−
** this package.+
−
**+
−
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
−
**+
−
** If you have questions regarding the use of this file, please contact+
−
** Nokia at qt-info@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);+
−
}+
−