private void changeTab(ModeType oldType, ModeType newType) {
ITab previousTab = tabs.get(oldType);
previousTab.hide();
ITab newTab = tabs.get(newType);
newTab.show();
}
private boolean handleAtLeatOneCase(EnumMap<ModeType, ITab> tabs) {
for (ModeType modeType : ModeType.values()) {
if (tabs.get(modeType) != null) {