docs: public void displaySelectedURL()
      {
          dispFinished = false;
          if (treeCompWindow != null)
          {
              treeCompWindow.setVisible(false);
              treeCompWindow.dispose();
              treeCompWindow = null;
          }
          
          try {
              int i = rendererCombo.getSelectedIndex();
              if (i != -1)
              {
                  BoxTreeProvider btp = rendererCombo.getItemAt(i);
                  Page page = proc.renderPage(btp, ((ParamsPanel) rendererParamsPanel).getParams());
                  setPage(page);
                  
                  if (segmAutorunCheckbox.isSelected())
                  {
                      segmentPage();
                  }
                  if (logicalAutorunCheckbox.isSelected())
                  {
                      buildLogicalTree();
                  }
              }
          } catch (Exception e) {
              System.err.println("*** Error: "+e.getMessage());
              e.printStackTrace();
          }
      }