private void initComboForGameMode() {
        EnumSet<ModeEnum> modes =  EnumSet.allOf(ModeEnum.class);
        comboMode = new Combo(compOptions, SWT.READ_ONLY);
        availableModes = modes.toArray(new ModeEnum[modes.size()]);
        String[] modesString = new String[modes.size()];
        int i = 0;
        for (ModeEnum mode : modes) {
            modesString[i] = mode.getLabel();
            i++;
        }
        comboMode.setItems(modesString);
        comboMode.select(0);
    }