Settings Editor Example

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#include <QtWidgets> #include "locationdialog.h" #include "mainwindow.h" #include "settingstree.h" MainWindow::MainWindow() : settingsTree(new SettingsTree) , locationDialog(nullptr) { setCentralWidget(settingsTree); createActions(); autoRefreshAct->setChecked(true); fallbacksAct->setChecked(true); setWindowTitle(QCoreApplication::applicationName()); const QRect availableGeometry = QApplication::desktop()->availableGeometry(this); adjustSize(); move((availableGeometry.width() - width()) / 2, (availableGeometry.height() - height()) / 2); } void MainWindow::openSettings() { if (!locationDialog) locationDialog = new LocationDialog(this); if (locationDialog->exec() != QDialog::Accepted) return; SettingsPtr settings(new QSettings(locationDialog->format(), locationDialog->scope(), locationDialog->organization(), locationDialog->application())); setSettingsObject(settings); fallbacksAct->setEnabled(true); } void MainWindow::openIniFile() { const QString directory = QStandardPaths::writableLocation(QStandardPaths::ConfigLocation); const QString fileName = QFileDialog::getOpenFileName(this, tr("Open INI File"), directory, tr("INI Files (*.ini *.conf)")); if (fileName.isEmpty()) return; SettingsPtr settings(new QSettings(fileName, QSettings::IniFormat)); setSettingsObject(settings); fallbacksAct->setEnabled(false); } void MainWindow::openPropertyList() { const QString directory = QStandardPaths::writableLocation(QStandardPaths::ConfigLocation); const QString fileName = QFileDialog::getOpenFileName(this, tr("Open Property List"), directory, tr("Property List Files (*.plist)")); if (fileName.isEmpty()) return; SettingsPtr settings(new QSettings(fileName, QSettings::NativeFormat)); setSettingsObject(settings); fallbacksAct->setEnabled(false); } void MainWindow::openRegistryPath() { const QString path = QInputDialog::getText(this, tr("Open Registry Path"), tr("Enter the path in the Windows registry:"), QLineEdit::Normal, "HKEY_CURRENT_USER\\"); if (path.isEmpty()) return; SettingsPtr settings(new QSettings(path, QSettings::NativeFormat)); setSettingsObject(settings); fallbacksAct->setEnabled(false); } void MainWindow::about() { QMessageBox::about(this, tr("About Settings Editor"), tr("The <b>Settings Editor</b> example shows how to access " "application settings using Qt.")); } void MainWindow::createActions() { QMenu *fileMenu = menuBar()->addMenu(tr("&File")); QAction *openSettingsAct = fileMenu->addAction(tr("&Open Application Settings..."), this, &MainWindow::openSettings); openSettingsAct->setShortcuts(QKeySequence::Open); QAction *openIniFileAct = fileMenu->addAction(tr("Open I&NI File..."), this, &MainWindow::openIniFile); openIniFileAct->setShortcut(tr("Ctrl+N")); #ifdef Q_OS_OSX QAction *openPropertyListAct = fileMenu->addAction(tr("Open Apple &Property List..."), this, &MainWindow::openPropertyList); openPropertyListAct->setShortcut(tr("Ctrl+P")); #endif // Q_OS_OSX #ifdef Q_OS_WIN QAction *openRegistryPathAct = fileMenu->addAction(tr("Open Windows &Registry Path..."), this, &MainWindow::openRegistryPath); openRegistryPathAct->setShortcut(tr("Ctrl+G")); #endif // Q_OS_WIN fileMenu->addSeparator(); refreshAct = fileMenu->addAction(tr("&Refresh"), settingsTree, &SettingsTree::refresh); refreshAct->setShortcut(tr("Ctrl+R")); refreshAct->setEnabled(false); fileMenu->addSeparator(); QAction *exitAct = fileMenu->addAction(tr("E&xit"), this, &QWidget::close); exitAct->setShortcuts(QKeySequence::Quit); QMenu *optionsMenu = menuBar()->addMenu(tr("&Options")); autoRefreshAct = optionsMenu->addAction(tr("&Auto-Refresh")); autoRefreshAct->setShortcut(tr("Ctrl+A")); autoRefreshAct->setCheckable(true); autoRefreshAct->setEnabled(false); connect(autoRefreshAct, &QAction::triggered, settingsTree, &SettingsTree::setAutoRefresh); connect(autoRefreshAct, &QAction::triggered, refreshAct, &QAction::setDisabled); fallbacksAct = optionsMenu->addAction(tr("&Fallbacks")); fallbacksAct->setShortcut(tr("Ctrl+F")); fallbacksAct->setCheckable(true); fallbacksAct->setEnabled(false); connect(fallbacksAct, &QAction::triggered, settingsTree, &SettingsTree::setFallbacksEnabled); QMenu *helpMenu = menuBar()->addMenu(tr("&Help")); helpMenu->addAction(tr("&About"), this, &MainWindow::about); helpMenu->addAction(tr("About &Qt"), qApp, &QCoreApplication::quit); } void MainWindow::setSettingsObject(const SettingsPtr &settings) { settings->setFallbacksEnabled(fallbacksAct->isChecked()); settingsTree->setSettingsObject(settings); refreshAct->setEnabled(true); autoRefreshAct->setEnabled(true); QString niceName = QDir::cleanPath(settings->fileName()); int pos = niceName.lastIndexOf(QLatin1Char('/')); if (pos != -1) niceName.remove(0, pos + 1); if (!settings->isWritable()) niceName = tr("%1 (read only)").arg(niceName); setWindowTitle(tr("%1 - %2").arg(niceName, QCoreApplication::applicationName())); statusBar()->showMessage(tr("Opened \"%1\"").arg(QDir::toNativeSeparators(settings->fileName()))); }