1 files changed, 72 insertions, 0 deletions
diff --git a/desktop-widgets/preferences/preferences_language.cpp b/desktop-widgets/preferences/preferences_language.cpp
new file mode 100644
index 000000000..31bbd1c20
--- /dev/null
+++ b/desktop-widgets/preferences/preferences_language.cpp
@@ -0,0 +1,72 @@
+#include "preferences_language.h"
+#include "ui_prefs_language.h"
+#include "subsurface-core/helpers.h"
+
+#include <QApplication>
+#include <QSettings>
+#include <QMessageBox>
+#include <QSortFilterProxyModel>
+
+#include "qt-models/models.h"
+
+PreferencesLanguage::PreferencesLanguage() : AbstractPreferencesWidget(tr("Language"), QIcon(":/language"), 4)
+{
+	ui = new Ui::PreferencesLanguage();
+	ui->setupUi(this);
+
+	QSortFilterProxyModel *filterModel = new QSortFilterProxyModel();
+	filterModel->setSourceModel(LanguageModel::instance());
+	filterModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
+	ui->languageDropdown->setModel(filterModel);
+	filterModel->sort(0);
+	connect(ui->languageFilter, &QLineEdit::textChanged,
+			filterModel, &QSortFilterProxyModel::setFilterFixedString);
+}
+
+PreferencesLanguage::~PreferencesLanguage()
+{
+	delete ui;
+}
+
+void PreferencesLanguage::refreshSettings()
+{
+	QSettings s;
+	s.beginGroup("Language");
+	ui->languageSystemDefault->setChecked(s.value("UseSystemLanguage", true).toBool());
+	ui->timeFormatSystemDefault->setChecked(!s.value("time_format_override", false).toBool());
+	ui->dateFormatSystemDefault->setChecked(!s.value("date_format_override", false).toBool());
+	ui->timeFormatEntry->setText(s.value("time_format").toString());
+	ui->dateFormatEntry->setText(s.value("date_format").toString());
+	ui->shortDateFormatEntry->setText(s.value("date_format_short").toString());
+	QAbstractItemModel *m = ui->languageDropdown->model();
+	QModelIndexList languages = m->match(m->index(0, 0), Qt::UserRole, s.value("UiLanguage").toString());
+	if (languages.count())
+		ui->languageDropdown->setCurrentIndex(languages.first().row());
+	s.endGroup();
+}
+
+void PreferencesLanguage::syncSettings()
+{
+	QSettings s;
+	s.beginGroup("Language");
+	bool useSystemLang = s.value("UseSystemLanguage", true).toBool();
+	QAbstractItemModel *m = ui->languageDropdown->model();
+	QString currentText = m->data(m->index(ui->languageDropdown->currentIndex(),0), Qt::UserRole).toString();
+	if (useSystemLang != ui->languageSystemDefault->isChecked() ||
+	    (!useSystemLang && s.value("UiLanguage").toString() != currentText)) {
+		QMessageBox::warning(this, tr("Restart required"),
+			tr("To correctly load a new language you must restart Subsurface."));
+	}
+	s.setValue("UiLanguage", currentText);
+	s.setValue("UseSystemLanguage", ui->languageSystemDefault->isChecked());
+	s.setValue("time_format_override", !ui->timeFormatSystemDefault->isChecked());
+	s.setValue("date_format_override", !ui->dateFormatSystemDefault->isChecked());
+	if (!ui->timeFormatSystemDefault->isChecked())
+		s.setValue("time_format", ui->timeFormatEntry->text());
+	if (!ui->dateFormatSystemDefault->isChecked()) {
+		s.setValue("date_format", ui->dateFormatEntry->text());
+		s.setValue("date_format_short", ui->shortDateFormatEntry->text());
+	}
+	s.endGroup();
+	uiLanguage(NULL);
+}