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import java.util.*;
import java.awt.*;
import java.awt.event.*;
import java.text.*;
import javax.swing.event.*;
import javax.swing.*;
import javax.swing.text.*;
import javax.swing.tree.*;
import java.io.*;
//import javax.swing.table.*;
public class BasicDnD extends JPanel implements ActionListener, MouseListener {
static JFrame frame;
JTextArea textArea;
JTextField textField;
JList list;
//JTable table;
JTree tree;
JCheckBox toggleDnD;
JLabel label;
public BasicDnD() {
super(new BorderLayout());
JPanel rightPanel = new JPanel();
rightPanel.setLayout(new GridLayout(2,2));
//Create a table model.
//LEFT COLUMN
//Use the table model to create a table.
//Create a color chooser.
//RIGHT COLUMN
//Create a textfield.
textField = new JTextField(30);
textField.addActionListener(this);
textField.addMouseListener(this);
textField.setText("Favorite foods:\nPizza, Moussaka, Pot roast");
rightPanel.add(createPanelForComponent(textField, "JTextField"));
//Create a scrolled text area.
textArea = new JTextArea(5, 30);
textArea.setText("Favorite shows:\nBuffy, Alias, Angel");
//textArea.addActionListener(this);
textArea.addMouseListener(this);
JScrollPane scrollPane = new JScrollPane(textArea);
rightPanel.add(createPanelForComponent(scrollPane, "JTextArea"));
//Creat a label
//Create a list model and a list.
DefaultListModel listModel = new DefaultListModel();
listModel.addElement("Martha Washington");
listModel.addElement("Abigail Adams");
listModel.addElement("Martha Randolph");
listModel.addElement("Dolley Madison");
listModel.addElement("Elizabeth Monroe");
listModel.addElement("Louisa Adams");
listModel.addElement("Emily Donelson");
list = new JList(listModel);
list.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
JScrollPane listView = new JScrollPane(list);
listView.setPreferredSize(new Dimension(300, 100));
rightPanel.add(createPanelForComponent(listView, "JList"));
//Create a tree.
DefaultMutableTreeNode rootNode = new DefaultMutableTreeNode("Mia Familia");
DefaultMutableTreeNode sharon = new DefaultMutableTreeNode("Sharon");
rootNode.add(sharon);
DefaultMutableTreeNode maya = new DefaultMutableTreeNode("Maya");
sharon.add(maya);
DefaultMutableTreeNode anya = new DefaultMutableTreeNode("Anya");
sharon.add(anya);
sharon.add(new DefaultMutableTreeNode("Bongo"));
maya.add(new DefaultMutableTreeNode("Muffin"));
anya.add(new DefaultMutableTreeNode("Winky"));
DefaultTreeModel model = new DefaultTreeModel(rootNode);
tree = new JTree(model);
//tree.addActionListener(this);
tree.addMouseListener(this);
tree.getSelectionModel().setSelectionMode
(TreeSelectionModel.DISCONTIGUOUS_TREE_SELECTION);
JScrollPane treeView = new JScrollPane(tree);
treeView.setPreferredSize(new Dimension(300, 100));
rightPanel.add(createPanelForComponent(treeView, "JTree"));
//Create the toggle button.
toggleDnD = new JCheckBox("Turn on Drag and Drop");
toggleDnD.setActionCommand("toggleDnD");
toggleDnD.addActionListener(this);
JSplitPane splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,
null, rightPanel);
//splitPane.setOneTouchExpandable(true);
add(splitPane, BorderLayout.CENTER);
add(toggleDnD, BorderLayout.PAGE_END);
setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
}
protected JPanel createVerticalBoxPanel() {
JPanel p = new JPanel();
p.setLayout(new BoxLayout(p, BoxLayout.PAGE_AXIS));
p.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
return p;
}
public JPanel createPanelForComponent(JComponent comp,
String title) {
JPanel panel = new JPanel(new BorderLayout());
panel.add(comp, BorderLayout.CENTER);
if (title != null) {
panel.setBorder(BorderFactory.createTitledBorder(title));
}
return panel;
}
public void actionPerformed(ActionEvent e) {
System.out.println("chiamata a actionPerformed");
if ("toggleDnD".equals(e.getActionCommand())) {
boolean toggle = toggleDnD.isSelected();
//boolean toggle = true;
textArea.setDragEnabled(toggle);
//label.setDragEnabled(toggle);
textField.setDragEnabled(toggle);
list.setDragEnabled(toggle);
//table.setDragEnabled(toggle);
tree.setDragEnabled(toggle);
}
}
public void mouseEntered(MouseEvent e) {
System.out.println("chiamata a mouseEntered");
if(e.getSource() instanceof JTree) {
System.out.println("Entro in componentei Jtree");
}
/*else if(e.getSource() instanceof JCheckBox) {
System.out.println("Entro in componentei JCheckBox");
}*/
else if(e.getSource() instanceof JTextArea) {
System.out.println("Entro in componentei JTextArea");
}
}
public void mouseExited(MouseEvent e) {
System.out.println("chiamata a mouseExite");
if(e.getSource() instanceof JTree) {
System.out.println("Esco da un componente Jtree");
}
/*else if(e.getSource() instanceof JCheckBox) {
System.out.println("Esco da un componente JCheckBox");
}*/
else if(e.getSource() instanceof JTextArea) {
System.out.println("Esco da un componente JTextArea");
}
}
public void mousePressed(MouseEvent e) {
System.out.println("chiamata a mousePressed");
if(e.getSource() instanceof JTree) {
System.out.println("Presso un componente Jtree");
}
/*else if(e.getSource() instanceof JCheckBox) {
System.out.println("Presso un componente JCheckBox");
}*/
else if(e.getSource() instanceof JTextArea) {
System.out.println("Presso un componente JTextArea");
}
}
public void mouseReleased(MouseEvent e) {
System.out.println("chiamata a mouseReleased");
if(e.getSource() instanceof JTree) {
System.out.println("Relese un componente Jtree");
}
/*else if(e.getSource() instanceof JCheckBox) {
System.out.println("Relese un componente JCheckBox");
}*/
else if(e.getSource() instanceof JTextArea) {
System.out.println("Relese un componente JTextArea");
}
}
public void mouseClicked(MouseEvent e) {
System.out.println("chiamata a mouseClicked");
if(e.getSource() instanceof JTree) {
System.out.println("Click un componente Jtree");
}
else if("JTextArea".equals(e.getSource())) {
System.out.println("Click un componente JTextArea");
}
}
private static void createAndShowGUI() {
//Create and set up the window.
frame = new JFrame("########## Prova Drop & Drag ##########");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Create and set up the content pane.
JComponent newContentPane = new BasicDnD();
newContentPane.setOpaque(true); //content panes must be opaque
frame.setContentPane(newContentPane);
//Display the window.
//frame.setSize(700,700);
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
} |
Drag And Drop Jtree
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