Method if

kdevplatform/sublime/idealcontroller.cpp:358–361

This code determines the initial visibility of the toolbar only if KMainWindow::applyMainWindowSettings() fails to restore the main window state from config.

        // This code determines the initial visibility of the toolbar only if KMainWindow::applyMainWindowSettings()
        // fails to restore the main window state from config.
        if (hideWhenEmpty) {
            updateVisibility();
            connect(m_buttons, &IdealButtonBarWidget::emptyChanged, this, &IdealToolBar::updateVisibility);
        }
    }

    void updateVisibility()