Example usage for javax.swing.tree TreePath pathByAddingChild

Introduction

In this page you can find the example usage for javax.swing.tree TreePath pathByAddingChild.

Prototype

public TreePath pathByAddingChild(Object child) 

Source Link

Document

Returns a new path containing all the elements of this path plus child.

Usage

From source file:Main.java

public Main() {
    setLayout(new GridLayout(1, 3));
    tree = new JTree(getTreeModel());
    tree.setDragEnabled(true);/*from w  w w. j a  v  a 2  s  .c o  m*/
    tree.setPreferredSize(new Dimension(200, 400));
    JScrollPane scroll = new JScrollPane();
    scroll.setViewportView(tree);

    treeModel = getTreeModel();
    JTree secondTree = new JTree(treeModel);
    secondTree.setPreferredSize(new Dimension(200, 400));
    secondTree.setTransferHandler(new TransferHandler() {
        @Override
        public boolean importData(TransferSupport support) {
            if (!canImport(support)) {
                return false;
            }
            JTree.DropLocation dl = (JTree.DropLocation) support.getDropLocation();
            TreePath path = dl.getPath();
            int childIndex = dl.getChildIndex();

            String data;
            try {
                data = (String) support.getTransferable().getTransferData(DataFlavor.stringFlavor);
            } catch (Exception e) {
                return false;
            }
            if (childIndex == -1) {
                childIndex = tree.getModel().getChildCount(path.getLastPathComponent());
            }

            DefaultMutableTreeNode newNode = new DefaultMutableTreeNode(data);
            DefaultMutableTreeNode parentNode = (DefaultMutableTreeNode) path.getLastPathComponent();
            treeModel.insertNodeInto(newNode, parentNode, childIndex);

            tree.makeVisible(path.pathByAddingChild(newNode));
            tree.scrollRectToVisible(tree.getPathBounds(path.pathByAddingChild(newNode)));
            return true;
        }

        public boolean canImport(TransferSupport support) {
            if (!support.isDrop()) {
                return false;
            }
            support.setShowDropLocation(true);
            if (!support.isDataFlavorSupported(DataFlavor.stringFlavor)) {
                System.out.println("only string is supported");
                return false;
            }
            JTree.DropLocation dl = (JTree.DropLocation) support.getDropLocation();
            TreePath path = dl.getPath();
            if (path == null) {
                return false;
            }
            return true;
        }
    });
    JScrollPane secondScroll = new JScrollPane();
    secondScroll.setViewportView(secondTree);

    JPanel topPanel = new JPanel(new BorderLayout());
    topPanel.add(scroll, BorderLayout.CENTER);
    JPanel btmPanel = new JPanel(new BorderLayout());
    btmPanel.add(secondScroll, BorderLayout.CENTER);

    add(topPanel);
    add(btmPanel);
}

---

From source file:gdt.jgui.entity.JEntityStructurePanel.java

private void expandAll(JTree tree, TreePath path, boolean expand) {
    TreeNode node = (TreeNode) path.getLastPathComponent();
    if (node.getChildCount() >= 0) {
        Enumeration enumeration = node.children();
        while (enumeration.hasMoreElements()) {
            TreeNode n = (TreeNode) enumeration.nextElement();
            TreePath p = path.pathByAddingChild(n);
            expandAll(tree, p, expand);/*from  w  ww  .j a  v  a 2  s . c o m*/
        }
    }
    if (expand) {
        tree.expandPath(path);
    } else {
        tree.collapsePath(path);
    }
}

---

From source file:fxts.stations.ui.help.ContentTree.java

/**
 * Fires expanding of top nodes./*from  www  .  ja v a 2  s. c  o m*/
 */
private void expandTopNodes() {
    DefaultMutableTreeNode node;
    DefaultMutableTreeNode root;
    TreePath path;
    TreePath rootPath;
    root = (DefaultMutableTreeNode) mTree.getModel().getRoot();
    rootPath = new TreePath(root);
    for (Enumeration enumeration = root.children(); enumeration.hasMoreElements();) {
        node = (DefaultMutableTreeNode) enumeration.nextElement();

        //increase path
        path = rootPath.pathByAddingChild(node);
        //expands node
        mTree.expandPath(path);
    }
}

---

From source file:gdt.jgui.entity.JEntityDigestDisplay.java

private void expandAll(JTree tree, TreePath path, boolean expand) {
    TreeNode node = (TreeNode) path.getLastPathComponent();
    if (node.getChildCount() >= 0) {
        Enumeration enumeration = node.children();
        while (enumeration.hasMoreElements()) {
            DefaultMutableTreeNode n = (DefaultMutableTreeNode) enumeration.nextElement();
            TreePath p = path.pathByAddingChild(n);
            expandAll(tree, p, expand);//from   w  w w  .  j  a  v a2 s . c o  m
        }
    }
    if (expand) {
        tree.expandPath(path);
    } else {
        tree.collapsePath(path);
    }
}

---

From source file:de.erdesignerng.visual.common.OutlineComponent.java

private void expandOrCollapseAllChildrenOfNode(TreePath aParentPath, boolean aExpand) {
    TreeNode node = (TreeNode) aParentPath.getLastPathComponent();
    if (node.getChildCount() > 0) {
        for (Enumeration<TreeNode> en = node.children(); en.hasMoreElements();) {
            TreeNode n = en.nextElement();
            TreePath path = aParentPath.pathByAddingChild(n);
            expandOrCollapseAllChildrenOfNode(path, aExpand);
        }/*from w  w  w .j a v a 2  s  . c  om*/
    }
    if (aExpand) {
        tree.expandPath(aParentPath);
    } else {
        tree.collapsePath(aParentPath);
    }
}

---

From source file:fxts.stations.ui.help.ContentTree.java

/**
 * Returns path to node containing the specified url.
 *
 * @param aParentPath parent node/*w w  w .jav  a 2 s  .com*/
 * @param aUrl        specified url
 *
 * @return path to node containing specified url
 */
public TreePath findPathByUrl(TreePath aParentPath, String aUrl) {
    DefaultMutableTreeNode parentNode;
    DefaultMutableTreeNode node;
    TreePath resultPath;
    NodeInfo info;
    parentNode = (DefaultMutableTreeNode) aParentPath.getLastPathComponent();
    if (!parentNode.getAllowsChildren()) {
        return null;
    }
    for (Enumeration enumeration = parentNode.children(); enumeration.hasMoreElements();) {
        node = (DefaultMutableTreeNode) enumeration.nextElement();
        info = (NodeInfo) node.getUserObject();
        if (aUrl.equals(info.getUrl())) {
            return aParentPath.pathByAddingChild(node);
        } else {
            resultPath = findPathByUrl(aParentPath.pathByAddingChild(node), aUrl);
            if (resultPath != null) {
                return resultPath;
            }
        }
    }
    return null;
}

---

From source file:net.sf.jabref.gui.FindUnlinkedFilesDialog.java

/**
 * Expands or collapses the specified tree according to the
 * <code>expand</code>-parameter.
 *///from ww  w  . ja  v  a 2 s  . co  m
private void expandTree(JTree currentTree, TreePath parent, boolean expand) {
    TreeNode node = (TreeNode) parent.getLastPathComponent();
    if (node.getChildCount() >= 0) {
        for (Enumeration<TreeNode> e = node.children(); e.hasMoreElements();) {
            TreePath path = parent.pathByAddingChild(e.nextElement());
            expandTree(currentTree, path, expand);
        }
    }
    if (expand) {
        currentTree.expandPath(parent);
    } else {
        currentTree.collapsePath(parent);
    }
}

---

From source file:de.tor.tribes.ui.views.DSWorkbenchSelectionFrame.java

private TreePath find2(JTree tree, TreePath parent, Village pNode, int depth) {
    TreeNode node = (TreeNode) parent.getLastPathComponent();
    DefaultMutableTreeNode o = (DefaultMutableTreeNode) node;

    // If equal, go down the branch
    if (o.getUserObject().equals(pNode)) {
        // If at end, return match
        return parent;
    } else {//from ww  w .  ja  v a2 s .com
        // Traverse children
        if (node.getChildCount() >= 0) {
            for (Enumeration e = node.children(); e.hasMoreElements();) {
                TreeNode n = (TreeNode) e.nextElement();
                TreePath path = parent.pathByAddingChild(n);
                TreePath result = find2(tree, path, pNode, depth + 1);
                // Found a match
                if (result != null) {
                    return result;
                }
            }
        }
    }
    // No match at this branch
    return null;
}

---

From source file:gdt.jgui.entity.index.JIndexPanel.java

private void expandAll(JTree tree, TreePath parent, boolean expand) {

    TreeNode node = (TreeNode) parent.getLastPathComponent();

    if (node.getChildCount() >= 0) {
        for (Enumeration e = node.children(); e.hasMoreElements();) {
            TreeNode n = (TreeNode) e.nextElement();
            TreePath path = parent.pathByAddingChild(n);
            expandAll(tree, path, expand);
        }//from   www .  ja  va 2  s .c  om
    }
    if (expand) {
        tree.expandPath(parent);
    } else {
        tree.collapsePath(parent);
    }
}

---

From source file:LocationSensitiveDemo.java

public LocationSensitiveDemo() {
    super("Location Sensitive Drag and Drop Demo");

    treeModel = getDefaultTreeModel();//w w w .  ja  v  a 2s . c o  m
    tree = new JTree(treeModel);
    tree.setBorder(BorderFactory.createEmptyBorder(2, 4, 2, 4));
    tree.getSelectionModel().setSelectionMode(TreeSelectionModel.DISCONTIGUOUS_TREE_SELECTION);
    tree.setDropMode(DropMode.ON);
    namesPath = tree.getPathForRow(2);
    tree.expandRow(2);
    tree.expandRow(1);
    tree.setRowHeight(0);

    tree.setTransferHandler(new TransferHandler() {

        public boolean canImport(TransferHandler.TransferSupport info) {
            // for the demo, we'll only support drops (not clipboard paste)
            if (!info.isDrop()) {
                return false;
            }

            String item = (String) indicateCombo.getSelectedItem();

            if (item.equals("Always")) {
                info.setShowDropLocation(true);
            } else if (item.equals("Never")) {
                info.setShowDropLocation(false);
            }

            // we only import Strings
            if (!info.isDataFlavorSupported(DataFlavor.stringFlavor)) {
                return false;
            }

            // fetch the drop location
            JTree.DropLocation dl = (JTree.DropLocation) info.getDropLocation();

            TreePath path = dl.getPath();

            // we don't support invalid paths or descendants of the names folder
            if (path == null || namesPath.isDescendant(path)) {
                return false;
            }

            return true;
        }

        public boolean importData(TransferHandler.TransferSupport info) {
            // if we can't handle the import, say so
            if (!canImport(info)) {
                return false;
            }

            // fetch the drop location
            JTree.DropLocation dl = (JTree.DropLocation) info.getDropLocation();

            // fetch the path and child index from the drop location
            TreePath path = dl.getPath();
            int childIndex = dl.getChildIndex();

            // fetch the data and bail if this fails
            String data;
            try {
                data = (String) info.getTransferable().getTransferData(DataFlavor.stringFlavor);
            } catch (UnsupportedFlavorException e) {
                return false;
            } catch (IOException e) {
                return false;
            }

            // if child index is -1, the drop was on top of the path, so we'll
            // treat it as inserting at the end of that path's list of children
            if (childIndex == -1) {
                childIndex = tree.getModel().getChildCount(path.getLastPathComponent());
            }

            // create a new node to represent the data and insert it into the model
            DefaultMutableTreeNode newNode = new DefaultMutableTreeNode(data);
            DefaultMutableTreeNode parentNode = (DefaultMutableTreeNode) path.getLastPathComponent();
            treeModel.insertNodeInto(newNode, parentNode, childIndex);

            // make the new node visible and scroll so that it's visible
            tree.makeVisible(path.pathByAddingChild(newNode));
            tree.scrollRectToVisible(tree.getPathBounds(path.pathByAddingChild(newNode)));

            // demo stuff - remove for blog
            model.removeAllElements();
            model.insertElementAt("String " + (++count), 0);
            // end demo stuff

            return true;
        }
    });

    JList dragFrom = new JList(model);
    dragFrom.setFocusable(false);
    dragFrom.setPrototypeCellValue("String 0123456789");
    model.insertElementAt("String " + count, 0);
    dragFrom.setDragEnabled(true);
    dragFrom.setBorder(BorderFactory.createLoweredBevelBorder());

    JPanel p = new JPanel();
    p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
    JPanel wrap = new JPanel();
    wrap.add(new JLabel("Drag from here:"));
    wrap.add(dragFrom);
    p.add(Box.createHorizontalStrut(4));
    p.add(Box.createGlue());
    p.add(wrap);
    p.add(Box.createGlue());
    p.add(Box.createHorizontalStrut(4));
    getContentPane().add(p, BorderLayout.NORTH);

    getContentPane().add(new JScrollPane(tree), BorderLayout.CENTER);
    indicateCombo = new JComboBox(new String[] { "Default", "Always", "Never" });
    indicateCombo.setSelectedItem("INSERT");

    p = new JPanel();
    p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
    wrap = new JPanel();
    wrap.add(new JLabel("Show drop location:"));
    wrap.add(indicateCombo);
    p.add(Box.createHorizontalStrut(4));
    p.add(Box.createGlue());
    p.add(wrap);
    p.add(Box.createGlue());
    p.add(Box.createHorizontalStrut(4));
    getContentPane().add(p, BorderLayout.SOUTH);

    getContentPane().setPreferredSize(new Dimension(400, 450));
}

---

• «
• 1
• 2
• 3
• 4
• »