connect(ui.displayTopicInTooltip, SIGNAL(clicked(bool)), this, SLOT(widgetHasChanged()));
connect(ui.mouseWheelChangesBuffers, SIGNAL(clicked(bool)), this, SLOT(widgetHasChanged()));
connect(ui.displayTopicInTooltip, SIGNAL(clicked(bool)), this, SLOT(widgetHasChanged()));
connect(ui.mouseWheelChangesBuffers, SIGNAL(clicked(bool)), this, SLOT(widgetHasChanged()));