Biblioteca Java - Rev 32
Subversion Repositories:
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package guidemo;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.PrintWriter;
import java.io.StringWriter;
import javax.swing.*;
import javax.swing.event.*;
public class ListTest extends JFrame implements ListSelectionListener{
//JFrame frame = new JFrame("Selecting JList");
String labels[] = { "Chardonnay", "Sauvignon", "Riesling", "Cabernet",
"Zinfandel", "Merlot", "Pinot Noir", "Sauvignon Blanc",
"Syrah", "Gewurztraminer" };
JList jlist = new JList(labels);
final JTextArea textArea = new JTextArea();
ListTest(){
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
JScrollPane scrollPane1 = new JScrollPane(jlist);
add(scrollPane1, BorderLayout.WEST);
textArea.setEditable(false);
JScrollPane scrollPane2 = new JScrollPane(textArea);
add(scrollPane2, BorderLayout.CENTER);
jlist.addListSelectionListener(this);
jlist.addMouseListener(new MyMouseListener());
setSize(350, 200);
setVisible(true);
}
public void valueChanged(ListSelectionEvent listSelectionEvent) {
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
pw.print("First index: " + listSelectionEvent.getFirstIndex());
pw.print(", Last index: " + listSelectionEvent.getLastIndex());
boolean adjust = listSelectionEvent.getValueIsAdjusting();
pw.println(", Adjusting? " + adjust);
if (!adjust) {
JList list = (JList) listSelectionEvent.getSource();
int selections[] = list.getSelectedIndices();
Object selectionValues[] = list.getSelectedValues();
for (int i = 0, n = selections.length; i < n; i++) {
if (i == 0) {
pw.print(" Selections: ");
}
pw
.print(selections[i] + "/" + selectionValues[i]
+ " ");
}
pw.println();
}
textArea.append(sw.toString());
}
class MyMouseListener extends MouseAdapter{
public void mouseClicked(MouseEvent mouseEvent) {
JList theList = (JList) mouseEvent.getSource();
if (mouseEvent.getClickCount() == 2) {
int index = theList.locationToIndex(mouseEvent.getPoint());
if (index >= 0) {
Object o = theList.getModel().getElementAt(index);
textArea.append("Double-clicked on: " + o.toString());
textArea.append(System.getProperty("line.separator"));
}
}
}
}
public static void main(String args[]) {
new ListTest();
}
}
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package guidemo;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.PrintWriter;
import java.io.StringWriter;
import javax.swing.*;
import javax.swing.event.*;
public class ListTest extends JFrame implements ListSelectionListener{
//JFrame frame = new JFrame("Selecting JList");
String labels[] = { "Chardonnay", "Sauvignon", "Riesling", "Cabernet",
"Zinfandel", "Merlot", "Pinot Noir", "Sauvignon Blanc",
"Syrah", "Gewurztraminer" };
JList jlist = new JList(labels);
final JTextArea textArea = new JTextArea();
ListTest(){
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
JScrollPane scrollPane1 = new JScrollPane(jlist);
add(scrollPane1, BorderLayout.WEST);
textArea.setEditable(false);
JScrollPane scrollPane2 = new JScrollPane(textArea);
add(scrollPane2, BorderLayout.CENTER);
jlist.addListSelectionListener(this);
jlist.addMouseListener(new MyMouseListener());
setSize(350, 200);
setVisible(true);
}
public void valueChanged(ListSelectionEvent listSelectionEvent) {
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
pw.print("First index: " + listSelectionEvent.getFirstIndex());
pw.print(", Last index: " + listSelectionEvent.getLastIndex());
boolean adjust = listSelectionEvent.getValueIsAdjusting();
pw.println(", Adjusting? " + adjust);
if (!adjust) {
JList list = (JList) listSelectionEvent.getSource();
int selections[] = list.getSelectedIndices();
Object selectionValues[] = list.getSelectedValues();
for (int i = 0, n = selections.length; i < n; i++) {
if (i == 0) {
pw.print(" Selections: ");
}
pw
.print(selections[i] + "/" + selectionValues[i]
+ " ");
}
pw.println();
}
textArea.append(sw.toString());
}
class MyMouseListener extends MouseAdapter{
public void mouseClicked(MouseEvent mouseEvent) {
JList theList = (JList) mouseEvent.getSource();
if (mouseEvent.getClickCount() == 2) {
int index = theList.locationToIndex(mouseEvent.getPoint());
if (index >= 0) {
Object o = theList.getModel().getElementAt(index);
textArea.append("Double-clicked on: " + o.toString());
textArea.append(System.getProperty("line.separator"));
}
}
}
}
public static void main(String args[]) {
new ListTest();
}
}