Examples of javax.swing.tree.MutableTreeNode

javax.swing.tree.MutableTreeNode
Defines the requirements for a tree node object that can change -- by adding or removing child nodes, or by changing the contents of a user object stored in the node. @see DefaultMutableTreeNode @see javax.swing.JTree @author Rob Davis @author Scott Violet

        private void buildTree(Node node, MutableTreeNode where) {
            
            // is there anything to do?
            if (node == null) { return; }


            MutableTreeNode treeNode = insertNode(node, where);


            // iterate over children of this node
            NodeList nodes = node.getChildNodes();
            int len = (nodes != null) ? nodes.getLength() : 0;
            for (int i = 0; i < len; i++) {

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        } // buildTree()


        /** Inserts a node and returns a reference to the new node. */
        private MutableTreeNode insertNode(String what, MutableTreeNode where) {


            MutableTreeNode node = new DefaultMutableTreeNode(what);
            insertNodeInto(node, where, where.getChildCount());
            return node;


            } // insertNode(Node,MutableTreeNode):MutableTreeNode

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            } // insertNode(Node,MutableTreeNode):MutableTreeNode
            


        /** Inserts a text node. */
        public MutableTreeNode insertNode(Node what, MutableTreeNode where) {
                MutableTreeNode treeNode = insertNode(DOMTreeFull.toString(what), where);
                nodeMap.put(treeNode, what); 
                treeNodeMap.put(what, treeNode);
                return treeNode;
            }

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    tree.insert(new DefaultMutableTreeNode(new Node("Movies", "movies")), 0);
    DefaultMutableTreeNode music = new DefaultMutableTreeNode(
        new Node("Music", "music"));
    tree.insert(music, 0);
    tree.insert(new DefaultMutableTreeNode(new Node("Games", "games")), 0);
    MutableTreeNode temp = new DefaultMutableTreeNode(
        new Node("Science", "science"));
    temp.insert(
        new DefaultMutableTreeNode(new Node("Geography", "geography")), 0);
    temp.insert(
        new DefaultMutableTreeNode(new Node("Mathematics", "math")), 0);
    DefaultMutableTreeNode temp2 = new DefaultMutableTreeNode(
        new Node("Astronomy", "astro"));
    temp2.insert(new DefaultMutableTreeNode(new Node("Education", "edu")), 0);
    temp2.insert(new DefaultMutableTreeNode(new Node("Pictures", "pic")), 0);
    temp.insert(temp2, 2);
    tree.insert(temp, 2);
    treeState = new TreeState();
    treeState.addExpandState(tree);
    treeState.addSelection(temp2);
    treeState.setMarker(music);

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            if (document == null) { return; }


            // iterate over children of this node
            NodeList nodes = document.getChildNodes();
            int len = (nodes != null) ? nodes.getLength() : 0;
            MutableTreeNode root = (MutableTreeNode)getRoot();
            for (int i = 0; i < len; i++) {
                Node node = nodes.item(i);
                switch (node.getNodeType()) {
                    case Node.DOCUMENT_NODE: {
                        root = insertDocumentNode(node, root);

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            } // buildTree()


        /** Inserts a node and returns a reference to the new node. */
        private MutableTreeNode insertNode(String what, MutableTreeNode where) {


            MutableTreeNode node = new DefaultMutableTreeNode(what);
            insertNodeInto(node, where, where.getChildCount());
            return node;


            } // insertNode(Node,MutableTreeNode):MutableTreeNode

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            } // insertNode(Node,MutableTreeNode):MutableTreeNode
            
        /** Inserts the document node. */
        private MutableTreeNode insertDocumentNode(Node what, MutableTreeNode where) {
            MutableTreeNode treeNode = insertNode("<"+what.getNodeName()+'>', where);
            nodeMap.put(treeNode, what);
            return treeNode;
            }

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                }
            name.append('>');


            // insert element node
            
            MutableTreeNode element = insertNode(name.toString(), where);
            nodeMap.put(element, what);
            
            // gather up attributes and children nodes
            NodeList children = what.getChildNodes();
            int len = (children != null) ? children.getLength() : 0;

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        /** Inserts a text node. */
        private MutableTreeNode insertTextNode(Node what, MutableTreeNode where) {
            String value = what.getNodeValue().trim();
            if (value.length() > 0) {
                MutableTreeNode treeNode = insertNode(value, where);
                nodeMap.put(treeNode, what);            
                return treeNode;
                }
            return null;
            }

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         StringBuffer CSectionBfr = new StringBuffer();         
         //--- optional --- CSectionBfr.append( "<![CDATA[" );
         CSectionBfr.append( what.getNodeValue() );
         //--- optional --- CSectionBfr.append( "]]>" );
         if (CSectionBfr.length() > 0) {
            MutableTreeNode treeNode = insertNode(CSectionBfr.toString(), where);
            nodeMap.put(treeNode, what);            
            return treeNode;
            }
         return null;
         }

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