/**
  * Reset Display
  *
  * @param selIndex select index
  * @return selected activity
  */
 private MWFActivity resetDisplay(int selIndex) {
   fAnswerText.setVisible(false);
   fAnswerList.setVisible(false);
   fAnswerButton.setVisible(false);
   fAnswerButton.setImage("/images/mWindow.png");
   fTextMsg.setReadonly(!(selIndex >= 0));
   bZoom.setEnabled(selIndex >= 0);
   bOK.setEnabled(selIndex >= 0);
   fForward.setValue(null);
   fForward.setReadWrite(selIndex >= 0);
   //
   statusBar.setStatusDB(String.valueOf(selIndex + 1) + "/" + m_activities.length);
   m_activity = null;
   m_column = null;
   if (m_activities.length > 0) {
     if (selIndex >= 0 && selIndex < m_activities.length) m_activity = m_activities[selIndex];
   }
   //	Nothing to show
   if (m_activity == null) {
     fNode.setText("");
     fDescription.setText("");
     fHelp.setText("");
     fHistory.setContent(HISTORY_DIV_START_TAG + "&nbsp;</div>");
     statusBar.setStatusDB("0/0");
     statusBar.setStatusLine(Msg.getMsg(Env.getCtx(), "WFNoActivities"));
   }
   return m_activity;
 } //	resetDisplay
  /** Display. Fill Editors */
  public void display(int index) {
    log.fine("Index=" + index);
    //
    m_activity = resetDisplay(index);
    //	Nothing to show
    if (m_activity == null) {
      return;
    }
    //	Display Activity
    fNode.setText(m_activity.getNodeName());
    fDescription.setValue(m_activity.getNodeDescription());
    fHelp.setValue(m_activity.getNodeHelp());
    //
    fHistory.setContent(HISTORY_DIV_START_TAG + m_activity.getHistoryHTML() + "</div>");

    //	User Actions
    MWFNode node = m_activity.getNode();
    if (MWFNode.ACTION_UserChoice.equals(node.getAction())) {
      if (m_column == null) m_column = node.getColumn();
      if (m_column != null && m_column.get_ID() != 0) {
        fAnswerList.removeAllItems();
        int dt = m_column.getAD_Reference_ID();
        if (dt == DisplayType.YesNo) {
          ValueNamePair[] values = MRefList.getList(Env.getCtx(), 319, false); // 	_YesNo
          for (int i = 0; i < values.length; i++) {
            fAnswerList.appendItem(values[i].getName(), values[i].getValue());
          }
          fAnswerList.setVisible(true);
        } else if (dt == DisplayType.List) {
          ValueNamePair[] values =
              MRefList.getList(Env.getCtx(), m_column.getAD_Reference_Value_ID(), false);
          for (int i = 0; i < values.length; i++) {
            fAnswerList.appendItem(values[i].getName(), values[i].getValue());
          }
          fAnswerList.setVisible(true);
        } else //	other display types come here
        {
          fAnswerText.setText("");
          fAnswerText.setVisible(true);
        }
      }
    }
    //	--
    else if (MWFNode.ACTION_UserWindow.equals(node.getAction())
        || MWFNode.ACTION_UserForm.equals(node.getAction())) {
      fAnswerButton.setLabel(node.getName());
      fAnswerButton.setTooltiptext(node.getDescription());
      fAnswerButton.setVisible(true);
    } else log.log(Level.SEVERE, "Unknown Node Action: " + node.getAction());

    statusBar.setStatusDB((m_index + 1) + "/" + m_activities.length);
    statusBar.setStatusLine(Msg.getMsg(Env.getCtx(), "WFActivities"));
  } //	display