void setModel(decltype(iscore::none) n) { auto old = m_model; m_model = boost::none; on_modelChanged(old, m_model); }
void MainWindow::newModel() { mYaffsModel = mYaffsManager->newModel(); mUi->treeView->setModel(mYaffsModel); connect(mYaffsManager, SIGNAL(modelChanged()), SLOT(on_modelChanged())); }