subsurface/desktop-widgets/preferences/preferences_language.cpp
Michael Keller 5d7f294407 Desktop: Rework Setting of Custom Date / Time Formats.
Rework the setting of custom date / time format preferences:
- fix bug causing case changes if custom format case insensitively
  matches a drop down entry;
- fix invalid format examples in tooltip;
- update URL for the format documentation;
- add support for quoted literals to the format validity warning.
From discussion in
https://github.com/subsurface/subsurface/issues/3849#issuecomment-1481239270.

Signed-off-by: Michael Keller <github@ike.ch>
2023-05-30 11:24:37 +02:00

111 lines
4.8 KiB
C++

// SPDX-License-Identifier: GPL-2.0
#include "preferences_language.h"
#include "ui_preferences_language.h"
#include "core/qthelper.h"
#include "core/settings/qPrefLanguage.h"
#include <QDir>
#include <QMessageBox>
#include <QSortFilterProxyModel>
#include <QCompleter>
#include "qt-models/models.h"
PreferencesLanguage::PreferencesLanguage() : AbstractPreferencesWidget(tr("Language"), QIcon(":preferences-desktop-locale-icon"), 1)
{
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);
dateFormatShortMap.insert("MM/dd/yyyy", "M/d/yy");
dateFormatShortMap.insert("dd.MM.yyyy", "d.M.yy");
dateFormatShortMap.insert("yyyy-MM-dd", "yy-M-d");
foreach (QString format, dateFormatShortMap.keys())
ui->dateFormatEntry->addItem(format);
ui->dateFormatEntry->completer()->setCaseSensitivity(Qt::CaseSensitive);
connect(ui->dateFormatEntry, SIGNAL(currentIndexChanged(const QString&)),
this, SLOT(dateFormatChanged(const QString&)));
ui->timeFormatEntry->addItem("hh:mm");
ui->timeFormatEntry->addItem("h:mm AP");
ui->timeFormatEntry->addItem("hh:mm AP");
ui->timeFormatEntry->completer()->setCaseSensitivity(Qt::CaseSensitive);
}
PreferencesLanguage::~PreferencesLanguage()
{
delete ui;
}
void PreferencesLanguage::dateFormatChanged(const QString &text)
{
ui->shortDateFormatEntry->setText(dateFormatShortMap.value(text));
}
void PreferencesLanguage::refreshSettings()
{
ui->languageSystemDefault->setChecked(prefs.locale.use_system_language);
ui->timeFormatSystemDefault->setChecked(!prefs.time_format_override);
ui->dateFormatSystemDefault->setChecked(!prefs.date_format_override);
ui->timeFormatEntry->setCurrentText(prefs.time_format);
ui->dateFormatEntry->setCurrentText(prefs.date_format);
ui->shortDateFormatEntry->setText(prefs.date_format_short);
QAbstractItemModel *m = ui->languageDropdown->model();
QModelIndexList languages = m->match(m->index(0, 0), Qt::UserRole, QString(prefs.locale.lang_locale).replace("-", "_"));
if (languages.count())
ui->languageDropdown->setCurrentIndex(languages.first().row());
}
void PreferencesLanguage::syncSettings()
{
bool useSystemLang = prefs.locale.use_system_language;
QString currentText = ui->languageDropdown->currentText();
if (useSystemLang != ui->languageSystemDefault->isChecked() ||
(!useSystemLang && currentText != prefs.locale.language)) {
// remove the googlemaps cache folder on language change
QDir googlecachedir(QString(system_default_directory()).append("/googlemaps"));
googlecachedir.removeRecursively();
QMessageBox::warning(this, tr("Restart required"),
tr("To correctly load a new language you must restart Subsurface."));
}
QAbstractItemModel *m = ui->languageDropdown->model();
QModelIndexList languages = m->match(m->index(0, 0), Qt::DisplayRole, currentText);
QString currentLocale;
if (languages.count())
currentLocale = m->data(languages.first(),Qt::UserRole).toString();
qPrefLanguage::set_language(currentText);
qPrefLanguage::set_lang_locale(currentLocale);
qPrefLanguage::set_use_system_language(ui->languageSystemDefault->isChecked());
qPrefLanguage::set_time_format_override(!ui->timeFormatSystemDefault->isChecked());
qPrefLanguage::set_date_format_override(!ui->dateFormatSystemDefault->isChecked());
qPrefLanguage::set_time_format(ui->timeFormatEntry->currentText());
qPrefLanguage::set_date_format(ui->dateFormatEntry->currentText());
qPrefLanguage::set_date_format_short(ui->shortDateFormatEntry->text());
initUiLanguage();
// When switching to system defaults, initUiLanguage() will reset the date and time formats.
// Therefore, refresh the UI fields to give the user a visual feedback of the new formats.
refreshSettings();
QString qDateTimeWeb = tr("These will be used as is. This might not be what you intended. To avoid this warning wrap the literal parts in quotes (').\nSee https://doc.qt.io/archives/qt-4.8/qdatetime.html#fromString");
QRegularExpression timeStandardFormat("^([hHmszaApP\\s:\\.]|'[^']*')*$");
if (!timeStandardFormat.match(ui->timeFormatEntry->currentText()).hasMatch())
QMessageBox::warning(this, tr("Literal characters"),
tr("Non-standard character(s) in time format.\n") + qDateTimeWeb);
QRegularExpression dateStandardFormat("^([dMy\\s/\\.,\\-]|'[^']*')*$");
if (!dateStandardFormat.match(ui->dateFormatEntry->currentText()).hasMatch() ||
!dateStandardFormat.match(ui->shortDateFormatEntry->text()).hasMatch())
QMessageBox::warning(this, tr("Literal characters"),
tr("Non-standard character(s) in date format.\n") + qDateTimeWeb);
}