Add option to lock settings dialog with simple password

This is meant as a simple tampering protection.
The settings are not encrypted and the password is stored in plaintext.

data/locale/en-US.ini

@@ -47,6 +47,13 @@ AdvSceneSwitcher.generalTab.generalBehavior.hideLegacyTabs="Hide tabs which can
 AdvSceneSwitcher.generalTab.generalBehavior.alwaysShowMacroSearch="Always show macro search"
 AdvSceneSwitcher.generalTab.generalBehavior.alwaysShowFeatureTabs="Always show all feature tabs"
 AdvSceneSwitcher.generalTab.generalBehavior.alwaysShowFeatureTabs.tooltip="Show tabs that are normally hidden until first used in a macro (e.g. Action Queues, Variables, Twitch, Websockets)."
+AdvSceneSwitcher.generalTab.generalBehavior.settingsLock="Lock settings dialog with password"
+AdvSceneSwitcher.generalTab.generalBehavior.settingsLock.title="Settings Locked"
+AdvSceneSwitcher.generalTab.generalBehavior.settingsLock.passwordLabel="Enter password:"
+AdvSceneSwitcher.generalTab.generalBehavior.settingsLock.wrongPassword="Wrong password!"
+AdvSceneSwitcher.generalTab.generalBehavior.settingsLock.newPasswordLabel="New password:"
+AdvSceneSwitcher.generalTab.generalBehavior.settingsLock.confirmPasswordLabel="Confirm password:"
+AdvSceneSwitcher.generalTab.generalBehavior.settingsLock.passwordMismatch="Passwords do not match!"
 AdvSceneSwitcher.generalTab.matchBehavior="Match behavior"
 AdvSceneSwitcher.generalTab.priority="Priority"
 AdvSceneSwitcher.generalTab.priority.description="Switching methods priority (Highest priority is at the top)"

forms/advanced-scene-switcher.ui

@@ -258,6 +258,13 @@
                 </property>
                </widget>
               </item>
+              <item>
+               <widget class="QCheckBox" name="settingsLock">
+                <property name="text">
+                 <string>AdvSceneSwitcher.generalTab.generalBehavior.settingsLock</string>
+                </property>
+               </widget>
+              </item>
              </layout>
             </widget>
            </item>

lib/advanced-scene-switcher.cpp

@@ -19,8 +19,10 @@
 #include <obs-frontend-api.h>
 #include <QAction>
 #include <QDirIterator>
+#include <QInputDialog>
 #include <QLibrary>
 #include <QMainWindow>
+#include <QMessageBox>
 #include <QTextStream>
 #include <regex>
 
@@ -718,19 +720,54 @@ static void LoadPlugins()
 	}
 }
 
+static bool settingsPasswordIsCorrect(QWidget *parent)
+{
+	bool ok;
+	QString input = QInputDialog::getText(
+		parent,
+		obs_module_text(
+			"AdvSceneSwitcher.generalTab.generalBehavior.settingsLock.title"),
+		obs_module_text(
+			"AdvSceneSwitcher.generalTab.generalBehavior.settingsLock.passwordLabel"),
+		QLineEdit::Password, QString(), &ok);
+
+	if (!ok) {
+		return false;
+	}
+
+	if (input.toStdString() == switcher->settingsLockPassword) {
+		return true;
+	}
+
+	QMessageBox::warning(
+		parent,
+		obs_module_text(
+			"AdvSceneSwitcher.generalTab.generalBehavior.settingsLock.title"),
+		obs_module_text(
+			"AdvSceneSwitcher.generalTab.generalBehavior.settingsLock.wrongPassword"));
+	return false;
+}
+
 void OpenSettingsWindow()
 {
 	if (switcher->settingsWindowOpened) {
 		AdvSceneSwitcher::window->show();
 		AdvSceneSwitcher::window->raise();
 		AdvSceneSwitcher::window->activateWindow();
-	} else {
-		AdvSceneSwitcher::window =
-			new AdvSceneSwitcher(static_cast<QMainWindow *>(
-				obs_frontend_get_main_window()));
-		AdvSceneSwitcher::window->setAttribute(Qt::WA_DeleteOnClose);
-		AdvSceneSwitcher::window->show();
+		return;
 	}
+
+	auto parent =
+		static_cast<QMainWindow *>(obs_frontend_get_main_window());
+	if (switcher->settingsLockEnabled &&
+	    !switcher->settingsLockPassword.empty() &&
+	    !settingsPasswordIsCorrect(parent)) {
+		return;
+	}
+
+	AdvSceneSwitcher::window = new AdvSceneSwitcher(parent);
+	AdvSceneSwitcher::window->setAttribute(Qt::WA_DeleteOnClose);
+	AdvSceneSwitcher::window->show();
 }
 
 void AdvSceneSwitcher::HighlightMacroSettingsButton(bool enable)

lib/advanced-scene-switcher.hpp

@@ -68,6 +68,7 @@ public slots:
 	void on_warnPluginLoadFailure_stateChanged(int state);
 	void on_suppressCrashRecoveryDialog_stateChanged(int state);
 	void on_hideLegacyTabs_stateChanged(int state);
+	void on_settingsLock_stateChanged(int state);
 	void on_priorityUp_clicked();
 	void on_priorityDown_clicked();
 	void on_threadPriority_currentTextChanged(const QString &text);

lib/general.cpp

@@ -19,6 +19,8 @@
 
 #include <obs-frontend-api.h>
 #include <QFileDialog>
+#include <QInputDialog>
+#include <QMessageBox>
 
 namespace advss {
 
@@ -243,6 +245,64 @@ void AdvSceneSwitcher::on_hideLegacyTabs_stateChanged(int state)
 	ui->priorityBox->setVisible(!switcher->hideLegacyTabs);
 }
 
+void AdvSceneSwitcher::on_settingsLock_stateChanged(int state)
+{
+	if (loading) {
+		return;
+	}
+
+	if (!state) {
+		switcher->settingsLockEnabled = false;
+		switcher->settingsLockPassword = "";
+		return;
+	}
+
+	bool ok;
+	QString newPassword = QInputDialog::getText(
+		this,
+		obs_module_text(
+			"AdvSceneSwitcher.generalTab.generalBehavior.settingsLock.title"),
+		obs_module_text(
+			"AdvSceneSwitcher.generalTab.generalBehavior.settingsLock.newPasswordLabel"),
+		QLineEdit::Password, QString(), &ok);
+
+	const auto disablePassword = [this]() {
+		QSignalBlocker blocker(ui->settingsLock);
+		ui->settingsLock->setChecked(false);
+		ui->settingsLock->setCheckState(Qt::Unchecked);
+		switcher->settingsLockEnabled = false;
+		switcher->settingsLockPassword = "";
+	};
+
+	if (!ok || newPassword.isEmpty()) {
+		disablePassword();
+		return;
+	}
+
+	QString confirm = QInputDialog::getText(
+		this,
+		obs_module_text(
+			"AdvSceneSwitcher.generalTab.generalBehavior.settingsLock.title"),
+		obs_module_text(
+			"AdvSceneSwitcher.generalTab.generalBehavior.settingsLock.confirmPasswordLabel"),
+		QLineEdit::Password, QString(), &ok);
+	if (!ok || newPassword != confirm) {
+		if (ok) {
+			QMessageBox::warning(
+				this,
+				obs_module_text(
+					"AdvSceneSwitcher.generalTab.generalBehavior.settingsLock.title"),
+				obs_module_text(
+					"AdvSceneSwitcher.generalTab.generalBehavior.settingsLock.passwordMismatch"));
+		}
+		disablePassword();
+		return;
+	}
+
+	switcher->settingsLockEnabled = true;
+	switcher->settingsLockPassword = newPassword.toStdString();
+}
+
 void AdvSceneSwitcher::SetDeprecationWarnings()
 {
 	QString toolTip =
@@ -567,6 +627,9 @@ void SwitcherData::SaveGeneralSettings(obs_data_t *obj)
 			  disableFilterComboboxFilter);
 	obs_data_set_bool(obj, "warnPluginLoadFailure", warnPluginLoadFailure);
 	obs_data_set_bool(obj, "hideLegacyTabs", hideLegacyTabs);
+	obs_data_set_bool(obj, "settingsLockEnabled", settingsLockEnabled);
+	obs_data_set_string(obj, "settingsLockPassword",
+			    settingsLockPassword.c_str());
 
 	SaveFunctionPriorities(obj, functionNamesByPriority);
 
@@ -638,6 +701,8 @@ void SwitcherData::LoadGeneralSettings(obs_data_t *obj)
 	warnPluginLoadFailure = obs_data_get_bool(obj, "warnPluginLoadFailure");
 	obs_data_set_default_bool(obj, "hideLegacyTabs", true);
 	hideLegacyTabs = obs_data_get_bool(obj, "hideLegacyTabs");
+	settingsLockEnabled = obs_data_get_bool(obj, "settingsLockEnabled");
+	settingsLockPassword = obs_data_get_string(obj, "settingsLockPassword");
 
 	SetDefaultFunctionPriorities(obj);
 	LoadFunctionPriorities(obj, functionNamesByPriority);
@@ -960,6 +1025,7 @@ void AdvSceneSwitcher::SetupGeneralTab()
 	ui->warnPluginLoadFailure->setChecked(switcher->warnPluginLoadFailure);
 	ui->suppressCrashRecoveryDialog->setChecked(GetSuppressCrashDialog());
 	ui->hideLegacyTabs->setChecked(switcher->hideLegacyTabs);
+	ui->settingsLock->setChecked(switcher->settingsLockEnabled);
 
 	populatePriorityFunctionList(ui->priorityList);
 	populateThreadPriorityList(ui->threadPriority);

lib/switcher-data.hpp

@@ -163,6 +163,8 @@ public:
 	bool disableHints = false;
 	bool disableFilterComboboxFilter = false;
 	bool hideLegacyTabs = true;
+	bool settingsLockEnabled = false;
+	std::string settingsLockPassword;
 	bool saveWindowGeo = false;
 	QPoint windowPos = {};
 	QSize windowSize = {};