refactored the settings dialog

src/widgets/settingspages/accountspage.cpp

@@ -0,0 +1,46 @@
+#include "accountspage.hpp"
+
+#include <QDialogButtonBox>
+#include <QVBoxLayout>
+
+#include "const.hpp"
+#include "singletons/accountmanager.hpp"
+#include "util/layoutcreator.hpp"
+#include "widgets/logindialog.hpp"
+
+namespace chatterino {
+namespace widgets {
+namespace settingspages {
+AccountsPage::AccountsPage()
+    : SettingsPage("Accounts", ":/images/accounts.svg")
+{
+    util::LayoutCreator<AccountsPage> layoutCreator(this);
+
+    auto layout = layoutCreator.emplace<QVBoxLayout>().withoutMargin();
+    auto buttons = layout.emplace<QDialogButtonBox>();
+    {
+        this->addButton = buttons->addButton("Add", QDialogButtonBox::YesRole);
+        this->removeButton = buttons->addButton("Remove", QDialogButtonBox::NoRole);
+    }
+
+    auto accountSwitch = layout.emplace<AccountSwitchWidget>(this).assign(&this->accSwitchWidget);
+
+    // ----
+    QObject::connect(this->addButton, &QPushButton::clicked, []() {
+        static auto loginWidget = new LoginWidget();
+        loginWidget->show();
+    });
+
+    QObject::connect(this->removeButton, &QPushButton::clicked, [this] {
+        auto selectedUser = this->accSwitchWidget->currentItem()->text();
+        if (selectedUser == ANONYMOUS_USERNAME_LABEL) {
+            // Do nothing
+            return;
+        }
+
+        singletons::AccountManager::getInstance().Twitch.removeUser(selectedUser);
+    });
+}
+}  // namespace settingspages
+}  // namespace widgets
+}  // namespace chatterino