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| |
| #include "languagechooser.h" |
| #include "mainwindow.h" |
| |
| #include <QCoreApplication> |
| #include <QCheckBox> |
| #include <QDialogButtonBox> |
| #include <QDir> |
| #include <QGridLayout> |
| #include <QGroupBox> |
| #include <QPushButton> |
| #include <QTranslator> |
| |
| LanguageChooser::LanguageChooser(const QString &defaultLang, QWidget *parent) |
| : QDialog(parent, Qt::WindowStaysOnTopHint) |
| { |
| groupBox = new QGroupBox("Languages"); |
| |
| QGridLayout *groupBoxLayout = new QGridLayout; |
| |
| const QStringList qmFiles = findQmFiles(); |
| for (int i = 0; i < qmFiles.size(); ++i) { |
| const QString &qmlFile = qmFiles.at(i); |
| QCheckBox *checkBox = new QCheckBox(languageName(qmlFile)); |
| qmFileForCheckBoxMap.insert(checkBox, qmlFile); |
| connect(checkBox, &QCheckBox::toggled, |
| this, &LanguageChooser::checkBoxToggled); |
| if (languageMatch(defaultLang, qmlFile)) |
| checkBox->setCheckState(Qt::Checked); |
| 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, &QAbstractButton::clicked, this, &LanguageChooser::showAll); |
| connect(hideAllButton, &QAbstractButton::clicked, this, &LanguageChooser::hideAll); |
| |
| QVBoxLayout *mainLayout = new QVBoxLayout; |
| mainLayout->addWidget(groupBox); |
| mainLayout->addWidget(buttonBox); |
| setLayout(mainLayout); |
| |
| setWindowTitle("I18N"); |
| } |
| |
| bool LanguageChooser::languageMatch(const QString &lang, const QString &qmFile) |
| { |
| //qmFile: i18n_xx.qm |
| const QString prefix = "i18n_"; |
| const int langTokenLength = 2; /*FIXME: is checking two chars enough?*/ |
| return qmFile.midRef(qmFile.indexOf(prefix) + prefix.length(), langTokenLength) == lang.leftRef(langTokenLength); |
| } |
| |
| 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 QDialog::eventFilter(object, event); |
| } |
| |
| void LanguageChooser::closeEvent(QCloseEvent * /* event */) |
| { |
| QCoreApplication::quit(); |
| } |
| |
| void LanguageChooser::checkBoxToggled() |
| { |
| QCheckBox *checkBox = qobject_cast<QCheckBox *>(sender()); |
| MainWindow *window = mainWindowForCheckBoxMap.value(checkBox); |
| if (!window) { |
| QTranslator translator; |
| translator.load(qmFileForCheckBoxMap.value(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() |
| { |
| for (auto it = qmFileForCheckBoxMap.keyBegin(); it != qmFileForCheckBoxMap.keyEnd(); ++it) |
| (*it)->setChecked(true); |
| } |
| |
| void LanguageChooser::hideAll() |
| { |
| for (auto it = qmFileForCheckBoxMap.keyBegin(); it != qmFileForCheckBoxMap.keyEnd(); ++it) |
| (*it)->setChecked(false); |
| } |
| |
| QStringList LanguageChooser::findQmFiles() |
| { |
| QDir dir(":/translations"); |
| QStringList fileNames = dir.entryList(QStringList("*.qm"), QDir::Files, |
| QDir::Name); |
| for (QString &fileName : fileNames) |
| fileName = dir.filePath(fileName); |
| 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); |
| } |