+ // Remove view from the dock widget's QMainWindow
+ QMainWindow *dock_main = dynamic_cast<QMainWindow*>(dock->widget());
+ dock_main->setCentralWidget(0);
+
+ // Remove the QMainWindow
+ dock->setWidget(0);
+
+ const std::shared_ptr<pv::view::View> view = entry.second;
+
+ for (shared_ptr<Session> session : sessions_)
+ if (session->has_view(view))
+ session->deregister_view(view);
+ }
+}
+
+QAction* MainWindow::action_view_sticky_scrolling() const
+{
+ return action_view_sticky_scrolling_;
+}
+
+QAction* MainWindow::action_view_coloured_bg() const
+{
+ return action_view_coloured_bg_;
+}
+
+QAction* MainWindow::action_about() const
+{
+ return action_about_;
+}
+
+shared_ptr<pv::view::View> MainWindow::get_active_view() const
+{
+ // If there's only one view, use it...
+ if (view_docks_.size() == 1)
+ return view_docks_.begin()->second;
+
+ // ...otherwise find the dock widget the widget with focus is contained in
+ QObject *w = QApplication::focusWidget();
+ QDockWidget *dock = 0;
+
+ while (w) {
+ dock = qobject_cast<QDockWidget*>(w);
+ if (dock)
+ break;
+ w = w->parent();
+ }
+
+ // Get the view contained in the dock widget
+ for (auto entry : view_docks_)
+ if (entry.first.get() == dock)
+ return entry.second;
+
+ return shared_ptr<pv::view::View>();
+}
+
+shared_ptr<pv::view::View> MainWindow::add_view(const QString &title,
+ view::ViewType type, Session &session)
+{
+ shared_ptr<pv::view::View> v;
+
+ if (type == pv::view::TraceView) {
+ shared_ptr<QDockWidget> dock = make_shared<QDockWidget>(title, this);
+ dock->setObjectName(title);
+ addDockWidget(Qt::TopDockWidgetArea, dock.get());
+
+ // Insert a QMainWindow into the dock widget to allow for a tool bar
+ QMainWindow *dock_main = new QMainWindow(dock.get());
+ dock_main->setWindowFlags(Qt::Widget); // Remove Qt::Window flag
+
+ v = make_shared<pv::view::View>(session, dock_main);
+ view_docks_[dock] = v;
+ session.register_view(v);
+
+ dock_main->setCentralWidget(v.get());
+ dock->setWidget(dock_main);
+
+ dock->setFeatures(QDockWidget::DockWidgetMovable |
+ QDockWidget::DockWidgetFloatable | QDockWidget::DockWidgetClosable);
+
+ QAbstractButton *close_btn =
+ dock->findChildren<QAbstractButton*>
+ ("qt_dockwidget_closebutton").front();