connect(m_view.marker_new, SIGNAL(clicked()), this, SLOT(slotAddMarker()));
connect(m_view.marker_edit, SIGNAL(clicked()), this, SLOT(slotEditMarker()));
connect(m_view.marker_delete, SIGNAL(clicked()), this, SLOT(slotDeleteMarker()));
connect(m_view.marker_new, SIGNAL(clicked()), this, SLOT(slotAddMarker()));
connect(m_view.marker_edit, SIGNAL(clicked()), this, SLOT(slotEditMarker()));
connect(m_view.marker_delete, SIGNAL(clicked()), this, SLOT(slotDeleteMarker()));