private XPathActivityXMLTree()

in taverna-xpath-activity-ui/src/main/java/org/apache/taverna/activities/xpath/ui/config/xmltree/XPathActivityXMLTree.java [86:155]
50 lines of code
5 McCabe index (conditional complexity)

  private XPathActivityXMLTree(XPathActivityXMLTreeNode root, Document documentUsedToPopulateTree, 
      boolean bIncludeElementValues, boolean bIncludeElementNamespaces, XPathActivityConfigurationPanel parentConfigPanel)
  {
    super(root);
    
    this.instanceOfSelf = this;
    this.allSelectionListeners = new TreeSelectionListener[0];
    
    this.parentConfigPanel = parentConfigPanel;
    
    this.documentUsedToPopulateTree = documentUsedToPopulateTree;
    this.currentXPathExpression = null;
    this.currentXPathNamespaces = new HashMap<String,String>();
    this.prepopulateNamespaceMap();
    
    
    // custom renderer of the nodes in the XML tree
    this.treeRenderer = new XPathActivityXMLTreeRenderer(bIncludeElementValues, bIncludeElementNamespaces);
    this.setCellRenderer(treeRenderer);
    
    
    // add listener to handle various selections of nodes in the tree 
    this.xmlTreeSelectionHandler = new XPathActivityXMLTreeSelectionHandler(parentConfigPanel, this);
    this.addTreeSelectionListener(xmlTreeSelectionHandler);
    
    
    // --- CONTEXTUAL MENU FOR EXPANDING / COLLAPSING THE TREE ---
    
    // create popup menu for expanding / collapsing all nodes in the tree
    JMenuItem miExpandAll = new JMenuItem("Expand all", XPathActivityIcon.getIconById(XPathActivityIcon.XML_TREE_EXPAND_ALL_ICON));
    miExpandAll.setToolTipText("Expand all nodes in the filtering tree");
    miExpandAll.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        for (int i = 0; i < getRowCount(); i++) {
          instanceOfSelf.expandRow(i);
        }
      }
    });
    JMenuItem miCollapseAll = new JMenuItem("Collapse all", XPathActivityIcon.getIconById(XPathActivityIcon.XML_TREE_COLLAPSE_ALL_ICON));
    miCollapseAll.setToolTipText("Collapse all expanded nodes in the filtering tree");
    miCollapseAll.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        for (int i = getRowCount() - 1; i >= 0; i--) {
          instanceOfSelf.collapseRow(i);
        }
      }
    });
    
    // populate the popup menu with created menu items
    contextualMenu = new JPopupMenu();
    contextualMenu.add(miExpandAll);
    contextualMenu.add(miCollapseAll);
    
    // mouse events may cause the contextual menu to be shown - adding a listener
    this.addMouseListener(new MouseAdapter()
    {
      public void mousePressed(MouseEvent e) {
        if (e.isPopupTrigger()) {
          contextualMenu.show(instanceOfSelf, e.getX(), e.getY());
        }
      }
      public void mouseReleased(MouseEvent e) {
        if (e.isPopupTrigger()) {
          // another way a popup menu may be called on different systems
          contextualMenu.show(instanceOfSelf, e.getX(), e.getY());
        }
      }
    });
    
  }