Example usage for javax.swing JTree JTree

Introduction

In this page you can find the example usage for javax.swing JTree JTree.

Prototype

public JTree() 

Source Link

Document

Returns a JTree with a sample model.

Usage

From source file:MainClass.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Lazy Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    Object iconObject = LookAndFeel.makeIcon(MainClass.class, "yourImage.gif");
    UIManager.put("Tree.leafIcon", iconObject);

    Integer fifteen = new Integer(15);
    Object lazyArgs[] = new Object[] { Color.GREEN, Boolean.TRUE, fifteen, fifteen };
    Object lazyDiamond = new UIDefaults.ProxyLazyValue("DiamondIcon", lazyArgs);
    UIManager.put("Tree.openIcon", lazyDiamond);

    JTree tree = new JTree();
    JScrollPane scrollPane = new JScrollPane(tree);

    frame.add(scrollPane, BorderLayout.CENTER);
    frame.setSize(200, 200);//from   w w w .  ja  v a 2 s.  co m
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) {
    JTabbedPane tabbedPane = new JTabbedPane();
    tabbedPane.setUI(new MetalTabbedPaneUI() {
        @Override//from   ww w .  j a  va 2 s . c  o  m
        protected int calculateTabWidth(int tabPlacement, int tabIndex, FontMetrics metrics) {
            int width = super.calculateTabWidth(tabPlacement, tabIndex, metrics);
            int extra = tabIndex * 50;
            return width + extra;
        }
    });
    tabbedPane.addTab("JTable", new JScrollPane(new JTable(5, 5)));
    tabbedPane.addTab("JTree", new JScrollPane(new JTree()));
    tabbedPane.addTab("JSplitPane", new JSplitPane());

    JPanel p = new JPanel();
    p.add(tabbedPane);

    JFrame frame = new JFrame();
    frame.setContentPane(p);
    frame.pack();
    frame.setVisible(true);
}

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From source file:GTKLookAndFeelDemo.java

public static void main(String[] args) {
    try {//from  w ww  . j a va  2s  . co  m
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.gtk.GTKLookAndFeel");
    } catch (Exception e) {
        e.printStackTrace();
    }
    JLabel label = new JLabel("Label");
    JTextField field = new JTextField("www.java2s.com!");
    JList list = new JList(new String[] { "A", "B", "C" });
    JScrollPane listPane = new JScrollPane(list);
    listPane.setPreferredSize(new Dimension(250, 100));

    JScrollPane treePane = new JScrollPane(new JTree());
    treePane.setPreferredSize(new Dimension(250, 100));
    JButton button = new JButton("Click me");

    JPanel cp = new JPanel();
    cp.add(label);
    cp.add(field);
    cp.add(listPane);
    cp.add(treePane);
    cp.add(button);

    JFrame frame = new JFrame();
    frame.setTitle("Windows Look and Feel Demo");
    frame.setPreferredSize(new Dimension(280, 300));
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setContentPane(cp);
    frame.pack();
    frame.setVisible(true);

}

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From source file:WindowsLookAndFeelDemo.java

public static void main(String[] args) {
    try {/* w ww.j  a v  a  2s .com*/
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
    } catch (Exception e) {
        e.printStackTrace();
    }
    JLabel label = new JLabel("Label");
    JTextField field = new JTextField("www.java2s.com!");
    JList list = new JList(new String[] { "A", "B", "C" });
    JScrollPane listPane = new JScrollPane(list);
    listPane.setPreferredSize(new Dimension(250, 100));

    JScrollPane treePane = new JScrollPane(new JTree());
    treePane.setPreferredSize(new Dimension(250, 100));
    JButton button = new JButton("Click me");

    JPanel cp = new JPanel();
    cp.add(label);
    cp.add(field);
    cp.add(listPane);
    cp.add(treePane);
    cp.add(button);

    JFrame frame = new JFrame();
    frame.setTitle("Windows Look and Feel Demo");
    frame.setPreferredSize(new Dimension(280, 300));
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setContentPane(cp);
    frame.pack();
    frame.setVisible(true);

}

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From source file:LazySample.java

public static void main(String args[]) {

    JFrame frame = new JFrame("Lazy Example");

    Object iconObject = LookAndFeel.makeIcon(LazySample.class, "World.gif");
    UIManager.put("Tree.leafIcon", iconObject);

    Integer fifteen = new Integer(15);
    Object lazyArgs[] = new Object[] { Color.green, Boolean.TRUE, fifteen, fifteen };
    Object lazyDiamond = new UIDefaults.ProxyLazyValue("DiamondIcon", lazyArgs);
    UIManager.put("Tree.openIcon", lazyDiamond);

    JTree tree = new JTree();
    JScrollPane scrollPane = new JScrollPane(tree);

    Container contentPane = frame.getContentPane();
    contentPane.add(scrollPane, BorderLayout.CENTER);
    frame.setSize(200, 200);//from  w w w. j  a va  2s  . c  o  m
    frame.setVisible(true);
}

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From source file:FileTreeDemo.java

public static void main(String[] args) {
    // Figure out where in the filesystem to start displaying
    File root;/*from www .  ja  va 2s .  c om*/
    if (args.length > 0)
        root = new File(args[0]);
    else
        root = new File(System.getProperty("user.home"));

    // Create a TreeModel object to represent our tree of files
    FileTreeModel model = new FileTreeModel(root);

    // Create a JTree and tell it to display our model
    JTree tree = new JTree();
    tree.setModel(model);

    // The JTree can get big, so allow it to scroll.
    JScrollPane scrollpane = new JScrollPane(tree);

    // Display it all in a window and make the window appear
    JFrame frame = new JFrame("FileTreeDemo");
    frame.getContentPane().add(scrollpane, "Center");
    frame.setSize(400, 600);
    frame.setVisible(true);
}

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From source file:CustomTreeCellRenderer.java

public static void main(String[] args) {
    ImageIcon iconWhite = new ImageIcon("white.jpg");
    ImageIcon iconBlack = new ImageIcon("black.jpg");
    ;// w  w w  .  j a va  2  s .c o m
    JFrame frame = new JFrame();
    frame.setContentPane(new JPanel(new BorderLayout()));

    JTree tree = new JTree();
    frame.getContentPane().add(tree);

    CustomTreeCellRenderer renderer = new CustomTreeCellRenderer();
    renderer.setRendererIcon(iconWhite);
    tree.setCellRenderer(renderer);

    JPanel panelButtons = new JPanel();

    JButton buttonWhite = new JButton("");
    buttonWhite.setIcon(iconWhite);
    JButton buttonBlack = new JButton("");
    buttonBlack.setIcon(iconBlack);

    buttonBlack.addActionListener(e -> {
        renderer.setRendererIcon(iconBlack);
        tree.repaint();
    });

    panelButtons.add(buttonBlack);
    panelButtons.add(buttonWhite);
    frame.getContentPane().add(panelButtons, BorderLayout.SOUTH);

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(500, 500);
    frame.setVisible(true);
}

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From source file:DndTree.java

public static void main(String args[]) {
    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JPanel top = new JPanel(new BorderLayout());
    JLabel dragLabel = new JLabel("Drag me:");
    JTextField text = new JTextField();
    text.setDragEnabled(true);//from www.  ja  va2  s . c  o  m
    top.add(dragLabel, BorderLayout.WEST);
    top.add(text, BorderLayout.CENTER);
    f.add(top, BorderLayout.NORTH);

    final JTree tree = new JTree();
    final DefaultTreeModel model = (DefaultTreeModel) tree.getModel();
    tree.setTransferHandler(new TransferHandler() {
        public boolean canImport(TransferHandler.TransferSupport support) {
            if (!support.isDataFlavorSupported(DataFlavor.stringFlavor) || !support.isDrop()) {
                return false;
            }
            JTree.DropLocation dropLocation = (JTree.DropLocation) support.getDropLocation();
            return dropLocation.getPath() != null;
        }

        public boolean importData(TransferHandler.TransferSupport support) {
            if (!canImport(support)) {
                return false;
            }
            JTree.DropLocation dropLocation = (JTree.DropLocation) support.getDropLocation();
            TreePath path = dropLocation.getPath();
            Transferable transferable = support.getTransferable();

            String transferData;
            try {
                transferData = (String) transferable.getTransferData(DataFlavor.stringFlavor);
            } catch (IOException e) {
                return false;
            } catch (UnsupportedFlavorException e) {
                return false;
            }

            int childIndex = dropLocation.getChildIndex();
            if (childIndex == -1) {
                childIndex = model.getChildCount(path.getLastPathComponent());
            }

            DefaultMutableTreeNode newNode = new DefaultMutableTreeNode(transferData);
            DefaultMutableTreeNode parentNode = (DefaultMutableTreeNode) path.getLastPathComponent();
            model.insertNodeInto(newNode, parentNode, childIndex);

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

    JScrollPane pane = new JScrollPane(tree);
    f.add(pane, BorderLayout.CENTER);

    tree.setDropMode(DropMode.USE_SELECTION);
    f.setSize(300, 400);
    f.setVisible(true);
}

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From source file:DndTree.java

public static void main(String args[]) {
    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JPanel top = new JPanel(new BorderLayout());
    JLabel dragLabel = new JLabel("Drag me:");
    JTextField text = new JTextField();
    text.setDragEnabled(true);/*from w  w  w .  j a va  2 s .c  om*/
    top.add(dragLabel, BorderLayout.WEST);
    top.add(text, BorderLayout.CENTER);
    f.add(top, BorderLayout.NORTH);

    final JTree tree = new JTree();
    final DefaultTreeModel model = (DefaultTreeModel) tree.getModel();
    tree.setTransferHandler(new TransferHandler() {
        public boolean canImport(TransferHandler.TransferSupport support) {
            if (!support.isDataFlavorSupported(DataFlavor.stringFlavor) || !support.isDrop()) {
                return false;
            }
            JTree.DropLocation dropLocation = (JTree.DropLocation) support.getDropLocation();
            return dropLocation.getPath() != null;
        }

        public boolean importData(TransferHandler.TransferSupport support) {
            if (!canImport(support)) {
                return false;
            }
            JTree.DropLocation dropLocation = (JTree.DropLocation) support.getDropLocation();
            TreePath path = dropLocation.getPath();
            Transferable transferable = support.getTransferable();

            String transferData;
            try {
                transferData = (String) transferable.getTransferData(DataFlavor.stringFlavor);
            } catch (IOException e) {
                return false;
            } catch (UnsupportedFlavorException e) {
                return false;
            }

            int childIndex = dropLocation.getChildIndex();
            if (childIndex == -1) {
                childIndex = model.getChildCount(path.getLastPathComponent());
            }

            DefaultMutableTreeNode newNode = new DefaultMutableTreeNode(transferData);
            DefaultMutableTreeNode parentNode = (DefaultMutableTreeNode) path.getLastPathComponent();
            model.insertNodeInto(newNode, parentNode, childIndex);

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

    JScrollPane pane = new JScrollPane(tree);
    f.add(pane, BorderLayout.CENTER);

    tree.setDropMode(DropMode.INSERT);
    f.setSize(300, 400);
    f.setVisible(true);
}

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From source file:DndTree.java

public static void main(String args[]) {
    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JPanel top = new JPanel(new BorderLayout());
    JLabel dragLabel = new JLabel("Drag me:");
    JTextField text = new JTextField();
    text.setDragEnabled(true);/* w  ww . jav  a  2  s.  c om*/
    top.add(dragLabel, BorderLayout.WEST);
    top.add(text, BorderLayout.CENTER);
    f.add(top, BorderLayout.NORTH);

    final JTree tree = new JTree();
    final DefaultTreeModel model = (DefaultTreeModel) tree.getModel();
    tree.setTransferHandler(new TransferHandler() {
        public boolean canImport(TransferHandler.TransferSupport support) {
            if (!support.isDataFlavorSupported(DataFlavor.stringFlavor) || !support.isDrop()) {
                return false;
            }
            JTree.DropLocation dropLocation = (JTree.DropLocation) support.getDropLocation();
            return dropLocation.getPath() != null;
        }

        public boolean importData(TransferHandler.TransferSupport support) {
            if (!canImport(support)) {
                return false;
            }
            JTree.DropLocation dropLocation = (JTree.DropLocation) support.getDropLocation();
            TreePath path = dropLocation.getPath();
            Transferable transferable = support.getTransferable();

            String transferData;
            try {
                transferData = (String) transferable.getTransferData(DataFlavor.stringFlavor);
            } catch (IOException e) {
                return false;
            } catch (UnsupportedFlavorException e) {
                return false;
            }

            int childIndex = dropLocation.getChildIndex();
            if (childIndex == -1) {
                childIndex = model.getChildCount(path.getLastPathComponent());
            }

            DefaultMutableTreeNode newNode = new DefaultMutableTreeNode(transferData);
            DefaultMutableTreeNode parentNode = (DefaultMutableTreeNode) path.getLastPathComponent();
            model.insertNodeInto(newNode, parentNode, childIndex);

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

    JScrollPane pane = new JScrollPane(tree);
    f.add(pane, BorderLayout.CENTER);

    tree.setDropMode(DropMode.ON_OR_INSERT);
    f.setSize(300, 400);
    f.setVisible(true);
}

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