I want to get the event like crtl+c or right click copy in windows , that could do the event to java application running ,
that means if someone copies some text , that should be pasted into the java application textarea...
i have made the java application and it can accept arguments through main method.
but how to trigger event from windows to java..
The simplest way is to monitor changes to the Toolkit.getSystemClipboard
There are two ways to do this. You can monitor changes to the DataFlavour, but this will only help if the data flavor changes, not the content and/or you could monitor the contents of the clipboard and update your view when it's content changes...
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Toolkit;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.FlavorEvent;
import java.awt.datatransfer.FlavorListener;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class ClipboardMonitor {
public static void main(String[] args) {
new ClipboardMonitor();
}
public ClipboardMonitor() {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
}
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
frame.add(new TestPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class TestPane extends JPanel {
private JTextArea textArea;
public TestPane() {
textArea = new JTextArea(10, 10);
setLayout(new BorderLayout());
add(new JScrollPane(textArea));
Toolkit.getDefaultToolkit().getSystemClipboard().addFlavorListener(new FlavorListener() {
#Override
public void flavorsChanged(FlavorEvent e) {
setText(getClipboardContents());
}
});
Thread t = new Thread(new ContentsMonitor());
t.setDaemon(true);
t.start();
}
#Override
public Dimension getPreferredSize() {
return new Dimension(200, 200);
}
protected String getClipboardContents() {
String text = null;
Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
if (clipboard.isDataFlavorAvailable(DataFlavor.stringFlavor)) {
try {
Transferable contents = clipboard.getContents(TestPane.this);
text = (String) contents.getTransferData(DataFlavor.stringFlavor);
} catch (UnsupportedFlavorException | IOException ex) {
ex.printStackTrace();
}
}
return text;
}
protected void setText(final String text) {
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
textArea.setText(text);
}
});
}
public class ContentsMonitor implements Runnable {
#Override
public void run() {
String previous = getClipboardContents();
while (true) {
try {
Thread.sleep(1000);
} catch (InterruptedException ex) {
}
String text = getClipboardContents();
if (text != null && !text.equals(previous)) {
setText(text);
previous = text;
}
}
}
}
}
}
Related
Im making a bot for my friend who is on twitch, and he forgets to switch from his "brb" scene to his "game" scene on xsplit, so he wanted to make something where the mods could change or control somethings on his computer if he forgot. it was easy making a bot for that.
The code was easy to make and it is like this.
import java.awt.Robot;
import java.awt.event.KeyEvent;
import org.jibble.pircbot.*;
public class Twitchbot extends PircBot {
public Twitchbot() {
this.setName("Rex__Bot");
}
public void onMessage(String channel, String sender, String login, String hostname, String message) {
if(message.equals("Something")) {
try {
Robot r = new Robot();
r.keyPress(KeyEvent.VK_Something);
r.delay(300);
r.keyRelease(KeyEvent.VK_Something);
}catch(Exception ex) {
ex.printStackTrace();
}
}
}
}
And i was wondering if there was a way to make a GUI to change the Letter that the message equals to and the keyevent.VK_Something to something different with the GUI so it would be easy for him to edit it.
So, to start with, you need some way to capture the information you want. Basically, you need the message and the keystroke. The keystroke consists of the virtual key and the modifiers.
The following example basically provides a means by which the user can type a message text and a key stroke. The capture pane uses a KeyListener to monitor for key events and by extract various values from the key event, will store the information it needs and displays the key character to the user.
You can the save this information to a Properties file which you can later load...
import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Properties;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.Border;
public class Test {
public static void main(String[] args) {
new Test ();
}
public Test () {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new ConfigurationPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class ConfigurationPane extends JPanel {
private KeyPressPane keyPressPane;
private JTextField name;
public ConfigurationPane() {
name = new JTextField(10);
keyPressPane = new KeyPressPane();
setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.insets = new Insets(4, 4, 4, 4);
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.anchor = GridBagConstraints.CENTER;
gbc.fill = GridBagConstraints.HORIZONTAL;
add(name, gbc);
add(keyPressPane, gbc);
JButton save = new JButton("Save");
save.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
Properties p = new Properties();
p.setProperty("name", name.getText());
p.setProperty("keyCode", Integer.toString(keyPressPane.getKeyCode()));
p.setProperty("modifiers", Integer.toString(keyPressPane.getModifiers()));
try (OutputStream os = new FileOutputStream(new File("Config.cfg"))) {
p.store(os, "Key config");
} catch (IOException ex) {
ex.printStackTrace();
}
}
});
add(save);
}
}
public static class KeyPressPane extends JPanel {
protected static final Border FOCUSED_BORDER = BorderFactory.createLineBorder(UIManager.getColor("List.selectionBackground"));
protected static final Border UNFOCUSED_BORDER = UIManager.getBorder("TextField.border");
private JLabel label;
private int keyCode;
private int modifiers;
private char key;
public KeyPressPane() {
setBackground(UIManager.getColor("TextField.background"));
setLayout(new GridBagLayout());
label = new JLabel(" ");
label.setFont(UIManager.getFont("Label.font").deriveFont(48f));
add(label);
addKeyListener(new KeyAdapter() {
#Override
public void keyPressed(KeyEvent e) {
keyCode = e.getKeyCode();
modifiers = e.getModifiers();
}
#Override
public void keyTyped(KeyEvent e) {
char key = e.getKeyChar();
label.setText(Character.toString(key));
}
});
addMouseListener(new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent e) {
requestFocusInWindow();
}
});
addFocusListener(new FocusListener() {
#Override
public void focusGained(FocusEvent e) {
setBorder(FOCUSED_BORDER);
}
#Override
public void focusLost(FocusEvent e) {
System.out.println("unfocused");
setBorder(UNFOCUSED_BORDER);
}
});
setBorder(UNFOCUSED_BORDER);
setFocusable(true);
}
public int getKeyCode() {
return keyCode;
}
public int getModifiers() {
return modifiers;
}
}
}
You then need to load the Properties file and create a new KeyStroke...
Properties p = new Properties();
try (InputStream is = new FileInputStream(new File("Config.cfg"))) {
p.load(is);
String name = p.getProperty("name");
int keyCode = Integer.parseInt(p.getProperty("keyCode"));
int modifiers = Integer.parseInt(p.getProperty("modifiers"));
KeyStroke ks = KeyStroke.getKeyStroke(keyCode, modifiers);
System.out.println(ks);
} catch (IOException exp) {
exp.printStackTrace();
}
So I'm making a game with 3 difficulties:
Beginner
Intermediate
Expert
In the Expert level I want to close the JFrame after 60 seconds, either clicking a button to start or any other way, doesn't need to be fancy. I've tried many ways but I keep not getting what I want.
This is my code:
package battleship;
import static battleship.Countdown.interval;
import static battleship.Countdown.timer;
import java.util.Timer;
import java.util.TimerTask;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.GridBagLayout;
import java.awt.Image;
import java.awt.Toolkit;
import java.io.IOException;
import java.util.Scanner;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.JToggleButton;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class Test {
static int interval;
static Timer timer;
public static void main(String[] args) {
new Test();
Scanner sc = new Scanner(System.in);
System.out.print("Input seconds => : ");
String secs = sc.nextLine();
int delay = 1000;
int period = 1000;
timer = new Timer();
interval = Integer.parseInt(secs);
System.out.println(secs);
timer.scheduleAtFixedRate(new TimerTask() {
public void run() {
System.out.println(setInterval());
}
}, delay, period);
}
private void setIcon1() {
setIconImage(Toolkit.getDefaultToolkit().getImage(getClass().getResource("ramboo.png")));
}
public Test() {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
setInterval();
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
JFrame frame = new JFrame("BATALLA NAVAL - NIVEL PRINCIPIANTE" );
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.getContentPane().setPreferredSize(new Dimension(900, 700));
frame.add(new TestPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
void setVisible(boolean b) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
private void setIconImage(Image image) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
public class TestPane extends JPanel {
public TestPane() {
try {
for (int i=0; i<=1; i++){
add(crearespacios());
}
for (int i=0; i<=1; i++){
add(crearbombas());
}
//agregar frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
catch (IOException exp) {
exp.printStackTrace();
}
}
protected JToggleButton crearbombas() throws IOException {
JToggleButton btn = new JToggleButton();
btn.setModel(new StickyModel());
btn.setIcon(new ImageIcon(ImageIO.read(getClass().getResource("botondefault.png"))));
btn.setSelectedIcon(new ImageIcon(ImageIO.read(getClass().getResource("bombaa.png"))));
return btn;
}
protected JToggleButton crearespacios() throws IOException {
JToggleButton btn = new JToggleButton();
btn.setModel(new StickyModel());
btn.setBounds(5, 5, 50, 50);
btn.setIcon(new ImageIcon(ImageIO.read(getClass().getResource("botondefault.png"))));
btn.setSelectedIcon(new ImageIcon(ImageIO.read(getClass().getResource("botondefault.png"))));
return btn;
}
protected JButton Instructions() throws IOException {
JButton btnX = new JButton();
btnX.setModel(new StickyModel());
btnX.setIcon(new ImageIcon(ImageIO.read(getClass().getResource("rambofinal.png"))));
btnX.setSelectedIcon(new ImageIcon(ImageIO.read(getClass().getResource("rambofinal.png"))));
return btnX;
}
protected JTextField Instrucciones() throws IOException {
JTextField jtxt = new JTextField();
JTextField jtxt2 = new JTextField();
jtxt.setText("Existen 18 espacios, 5 barcos ocupan 6 de ellos.");
jtxt2.setText("Tenes 16 clicks.");
return jtxt;
}
}
private static final int setInterval() {
if (interval == 1)
timer.cancel();
return --interval;
}
public class StickyModel extends JToggleButton.ToggleButtonModel {
public void reset() {
super.setSelected(false);
}
#Override
public void setSelected(boolean b) {
if (!isSelected()) {
super.setSelected(b);
}
}
}
}
Tried using System.exit(0) and System.runfinalization; here but it only showed me the "Console output(?)" and not also the Frame
Without timer:
package battleship;
import java.util.Timer;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.GridBagLayout;
import java.awt.Image;
import java.awt.Toolkit;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.JToggleButton;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class Test {
public static void main(String[] args) {
new Test();
}
private void setIcon1() {
setIconImage(Toolkit.getDefaultToolkit().getImage(getClass().getResource("ramboo.png")));
}
public Test() {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
JFrame frame = new JFrame("BATALLA NAVAL - NIVEL PRINCIPIANTE" );
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setPreferredSize(new Dimension(900, 700));
frame.add(new TestPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
void setVisible(boolean b) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
private void setIconImage(Image image) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
public class TestPane extends JPanel {
public TestPane() {
try {
for (int i=0; i<=1; i++){
add(crearespacios());
}
for (int i=0; i<=1; i++){
add(crearbombas());
}
//agregar frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
catch (IOException exp) {
exp.printStackTrace();
}
}
protected JToggleButton crearbombas() throws IOException {
JToggleButton btn = new JToggleButton();
btn.setModel(new StickyModel());
btn.setIcon(new ImageIcon(ImageIO.read(getClass().getResource("botondefault.png"))));
btn.setSelectedIcon(new ImageIcon(ImageIO.read(getClass().getResource("bombaa.png"))));
return btn;
}
protected JToggleButton crearespacios() throws IOException {
JToggleButton btn = new JToggleButton();
btn.setModel(new StickyModel());
btn.setBounds(5, 5, 50, 50);
btn.setIcon(new ImageIcon(ImageIO.read(getClass().getResource("botondefault.png"))));
btn.setSelectedIcon(new ImageIcon(ImageIO.read(getClass().getResource("botondefault.png"))));
return btn;
}
protected JButton Instructions() throws IOException {
JButton btnX = new JButton();
btnX.setModel(new StickyModel());
btnX.setIcon(new ImageIcon(ImageIO.read(getClass().getResource("rambofinal.png"))));
btnX.setSelectedIcon(new ImageIcon(ImageIO.read(getClass().getResource("rambofinal.png"))));
return btnX;
}
protected JTextField Instrucciones() throws IOException {
JTextField jtxt = new JTextField();
JTextField jtxt2 = new JTextField();
jtxt.setText("Existen 18 espacios, 5 barcos ocupan 6 de ellos.");
jtxt2.setText("Tenes 16 clicks.");
return jtxt;
}
}
public class StickyModel extends JToggleButton.ToggleButtonModel {
public void reset() {
super.setSelected(false);
}
#Override
public void setSelected(boolean b) {
if (!isSelected()) {
super.setSelected(b);
}
}
}
}
BTW... the game is battleship and I have a custom button created in that code, that's why I need the timer in the same Frame.java as the buttons.
I am trying to get a progress bar to accurately reflect my SwingWorker. But I really can't figure out how to do it. I got the bar to just do a static animation until the operation has completed but I want a real active bar.
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package frglauncher;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.RandomAccessFile;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.channels.Channels;
import java.nio.channels.ReadableByteChannel;
import java.util.Enumeration;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JLabel;
import javax.swing.JProgressBar;
import javax.swing.SwingWorker;
/**
*
* #author KYLE-LAPTOP
*/
class DownloadWorker extends SwingWorker<String, Object> {
private String game;
private JProgressBar bar;
private JLabel label;
public DownloadWorker(JProgressBar bar, String game, JLabel label) {
this.game = game;
this.bar = bar;
this.label = label;
}
#Override
public String doInBackground() {
// Download here
label.setText("test");
try {
// ProgressBar/Install
System.out.println("FILELOCATION:\n----------");
String URL_LOCATION = "http://www.futureretrogaming.tk/gamefiles/ProfessorPhys.jar";
String LOCAL_FILE = ("\\" + game + "\\");
File localfile = new File(LOCAL_FILE);
if (localfile.exists()) {
System.out.println("Directory exists!");
}
else {
System.out.println("Directory doesn't exist! Creating...");
localfile.mkdir();
if (localfile.exists()) {
System.out.println("Directory created!");
}
}
System.out.println("LOCALFILE:\n-------");
System.out.println(LOCAL_FILE);
URL website = new URL(URL_LOCATION);
ReadableByteChannel rbc = Channels.newChannel(website.openStream());
FileOutputStream fos = new FileOutputStream(LOCAL_FILE + "\\ProfessorPhys.jar\\");
fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
System.out.println("--------\nDone Downloading\n---------");
RandomAccessFile randomAccessFile = null;
File file = new File(LOCAL_FILE + "ProfessorPhys.jar\\");
JarFile jar = new JarFile(file);
Enumeration enum1 = jar.entries();
while (enum1.hasMoreElements()) {
JarEntry file1 = (JarEntry) enum1.nextElement();
System.out.println("Directory to extract: " + LOCAL_FILE);
System.out.println("\n" + file1.getName() + "\n");
File f = new File(file1.getName());
if (file1.isDirectory()) { // If it's a directory, create it
f.mkdir();
continue;
}
try (InputStream is1 = jar.getInputStream(file1)) {
FileOutputStream fos1 = new FileOutputStream(f);
while (is1.available() > 0) { // Write contents of 'is' to 'fos'
fos1.write(is1.read());
}
fos1.close();
}
}
}
catch (FileNotFoundException ex) {
Logger.getLogger(DownloadWorker.class.getName()).log(Level.SEVERE, null, ex);
}
catch (MalformedURLException ex) {
Logger.getLogger(DownloadWorker.class.getName()).log(Level.SEVERE, null, ex);
}
catch (IOException ex) {
Logger.getLogger(DownloadWorker.class.getName()).log(Level.SEVERE, null, ex);
}
return "done";
}
#Override
protected void done() {
// Done
label.setText("Download of " + game + "is done.");
System.exit(0);
}
}
Several things:
There are four rules to follow with SwingWorker. You can refer to this diagram: .
So, this code:
#Override
public String doInBackground() {
//download here
label.setText("test");
violates that rule. Your label.setText() should be moved to the constructor.
To send "updates" to Swing components (like your progress bar) you want to use the process() method, which you invoke using publish() from inside your doInBackground(). Your second SwingWorker parameter reflects the type of value you want to pass. I've attached two SSCCEs. One passes an Integer to the process() method, the other passes a String. Should give you an idea of what's going on.
SSCCE using Integer:
import java.util.List;
import java.util.concurrent.ExecutionException;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.SwingUtilities;
import javax.swing.SwingWorker;
/**
*
* #author Ryan
*/
public class Test {
public static void main(String args[]) {
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
go();
}
});
}
public static void go() {
JFrame frame = new JFrame();
JPanel panel = new JPanel();
JLabel label = new JLabel("Loading...");
JProgressBar jpb = new JProgressBar();
jpb.setIndeterminate(false);
int max = 1000;
jpb.setMaximum(max);
panel.add(label);
panel.add(jpb);
frame.add(panel);
frame.pack();
frame.setSize(200,90);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
new Task_IntegerUpdate(jpb, max, label).execute();
}
static class Task_IntegerUpdate extends SwingWorker<Void, Integer> {
JProgressBar jpb;
int max;
JLabel label;
public Task_IntegerUpdate(JProgressBar jpb, int max, JLabel label) {
this.jpb = jpb;
this.max = max;
this.label = label;
}
#Override
protected void process(List<Integer> chunks) {
int i = chunks.get(chunks.size()-1);
jpb.setValue(i); // The last value in this array is all we care about.
System.out.println(i);
label.setText("Loading " + i + " of " + max);
}
#Override
protected Void doInBackground() throws Exception {
for(int i = 0; i < max; i++) {
Thread.sleep(10); // Illustrating long-running code.
publish(i);
}
return null;
}
#Override
protected void done() {
try {
get();
JOptionPane.showMessageDialog(jpb.getParent(), "Success", "Success", JOptionPane.INFORMATION_MESSAGE);
} catch (ExecutionException | InterruptedException e) {
e.printStackTrace();
}
}
}
}
SSCCE using String:
import java.util.List;
import java.util.concurrent.ExecutionException;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.SwingUtilities;
import javax.swing.SwingWorker;
/**
*
* #author Ryan
*/
public class Test2 {
public static void main(String args[]) {
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
go();
}
});
}
public static void go() {
JFrame frame = new JFrame();
JPanel panel = new JPanel();
JLabel label = new JLabel("Loading...");
JProgressBar jpb = new JProgressBar();
jpb.setIndeterminate(true);
panel.add(label);
panel.add(jpb);
frame.add(panel);
frame.pack();
frame.setSize(200,90);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
new Task_StringUpdate(label).execute();
}
static class Task_StringUpdate extends SwingWorker<Void, String> {
JLabel jlabel;
public Task_StringUpdate(JLabel jlabel) {
this.jlabel = jlabel;
}
#Override
protected void process(List<String> chunks) {
jlabel.setText(chunks.get(chunks.size()-1)); // The last value in this array is all we care about.
System.out.println(chunks.get(chunks.size()-1));
}
#Override
protected Void doInBackground() throws Exception {
publish("Loading Step 1...");
Thread.sleep(1000);
publish("Loading Step 2...");
Thread.sleep(1000);
publish("Loading Step 3...");
Thread.sleep(1000);
publish("Loading Step 4...");
Thread.sleep(1000);
return null;
}
#Override
protected void done() {
try {
get();
JOptionPane.showMessageDialog(jlabel.getParent(), "Success", "Success", JOptionPane.INFORMATION_MESSAGE);
} catch (ExecutionException | InterruptedException e) {
e.printStackTrace();
}
}
}
}
I instantiated a button of my class like so:
linkBtn = new LinkButton(
new URI("http://www.example.com"),
"Click me");
Nothing happens when I click it, so I want to add an action listener something like this:
linkBtn.addActionListener(SOMETHING);
I tried things like this:
linkBtn.addActionListener(new LinkButton.OpenUrlAction());
That gives the following error:
an enclosing instance that contains LinkButton.OpenUrlAction is
required
I haven't found the right syntax yet.
Here's my class that extends JButton:
import java.awt.Desktop;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.net.URI;
import javax.swing.JButton;
public class LinkButton extends JButton
implements ActionListener {
/** The target or href of this link. */
private URI target;
final static private String defaultText = "<HTML>Click the <FONT color=\"#000099\"><U>link</U></FONT>"
+ " to go to the website.</HTML>";
public LinkButton(URI target, String text) {
super(text);
this.target = target;
//this.setText(text);
this.setToolTipText(target.toString());
}
public LinkButton(URI target) {
this( target, target.toString() );
}
public void actionPerformed(ActionEvent e) {
open(target);
}
class OpenUrlAction implements ActionListener {
#Override public void actionPerformed(ActionEvent e) {
open(target);
}
}
private static void open(URI uri) {
if (Desktop.isDesktopSupported()) {
try {
Desktop.getDesktop().browse(uri);
} catch (IOException e) { /* TODO: error handling */ }
} else { /* TODO: error handling */ }
}
}
I'm open to suggestions. I don't like my program structure either...
The answer's provided so far are all excellent.
Hovercraft has suggest the use of Actions, which would simply the structure of your code.
For example...
import java.awt.Desktop;
import java.awt.EventQueue;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class LinkButtonExample {
public static void main(String[] args) {
new LinkButtonExample();
}
public LinkButtonExample() {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
try {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
}
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new GridBagLayout());
frame.add(new JButton(new OpenURLAction(new URL("http://stackoverflow.com/"))));
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
} catch (MalformedURLException ex) {
ex.printStackTrace();
}
}
});
}
public class OpenURLAction extends AbstractAction {
private URL url;
public OpenURLAction(URL url) {
this("<HTML>Click the <FONT color=\\\"#000099\\\"><U>link</U></FONT> to go to the website.</HTML>", url);
}
public OpenURLAction(String text, URL url) {
putValue(NAME, text);
setURL(url);
}
public void setURL(URL url) {
this.url = url;
setEnabled(
url != null
&& Desktop.isDesktopSupported()
&& Desktop.getDesktop().isSupported(Desktop.Action.BROWSE));
putValue(SHORT_DESCRIPTION, url == null ? null : url.toString());
}
public URL getURL() {
return url;
}
#Override
public void actionPerformed(ActionEvent e) {
if (isEnabled()) {
URL url = getURL();
if (url != null && Desktop.isDesktopSupported()
&& Desktop.getDesktop().isSupported(Desktop.Action.BROWSE)) {
try {
Desktop.getDesktop().browse(url.toURI());
} catch ( IOException | URISyntaxException ex) {
ex.printStackTrace();
}
}
}
}
}
}
Check out How to use Actions for more details
You could do this:
linkBtn.addActionListener(linkBtn.new OpenUrlAction());
But your program structure makes me wince. Myself I'd try to get Actions separate from views. I also much prefer extension by composition rather than inheritance.
I don't understand why you extends a JButton but you can add by default this listener in constructor.
public LinkButton(URI target, String text) {
super(text);
this.target = target;
//this.setText(text);
this.setToolTipText(target.toString());
this.addActionListener(this);
//this.addActionListener(new OpenUrlAction());
}
Or you can do this.
linkBtn.addActionListener(linkBtn.new OpenUrlAction());
outerObject.new InnerClass()
Or you can modify your inner class with a constructor injection
class OpenUrlAction implements ActionListener{
private URI target;
OpenUrlAction(URI target){
this.target=target;
}
#Override
public void actionPerformed(ActionEvent evt){
open(this.target);
}
}
In client code:
`linkBtn.addActionListener(linkBtn.new OpenUrlAction(lninkBtn.getTarget)); // or the target that you want`
Here what I came up with so far. I added this method to my LinkButton class:
public void init() {
this.addActionListener(this);
}
Then I added this code to add the action listener:
linkBtnDonate.init();
It's working. I'm open to other suggestions.
I've been wondering if for example:
JTextPane chatTextArea = new JTextPane();
s.replaceAll(":\\)", emoticon());
public String emoticon(){
chatTextArea.insertIcon(new ImageIcon(ChatFrame.class.getResource("/smile.png")));
return "`";
}
can put a picture and a "`" everywhere ":)" is found. When I run it like this if s contains a ":)" then the whole s gets replaced just by the icon.
Is there a way to do it?
Here is a small example I made (+1 to #StanislavL for the original), simply uses DocumentListener and checks when a matching sequence for an emoticon is entered and replaces it with appropriate image:
NB: SPACE must be pressed or another character/emoticon typed to show image
import java.awt.Dimension;
import java.awt.Image;
import java.net.URL;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextPane;
import javax.swing.SwingUtilities;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.text.AbstractDocument;
import javax.swing.text.BadLocationException;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledDocument;
import javax.swing.text.Utilities;
public class JTextPaneWithEmoticon {
private JFrame frame;
private JTextPane textPane;
static ImageIcon smiley, sad;
static final String SMILEY_EMOTICON = ":)", SAD_EMOTICON = ":(";
String[] emoticons = {SMILEY_EMOTICON, SAD_EMOTICON};
private void initComponents() {
frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
textPane = new JTextPane();
//add docuemntlistener to check for emoticon insert i.e :)
((AbstractDocument) textPane.getDocument()).addDocumentListener(new DocumentListener() {
#Override
public void insertUpdate(final DocumentEvent de) {
//We should surround our code with SwingUtilities.invokeLater() because we cannot change document during mutation intercepted in the listener.
SwingUtilities.invokeLater(new Runnable() {
public void run() {
try {
StyledDocument doc = (StyledDocument) de.getDocument();
int start = Utilities.getRowStart(textPane, Math.max(0, de.getOffset() - 1));
int end = Utilities.getWordStart(textPane, de.getOffset() + de.getLength());
String text = doc.getText(start, end - start);
for (String emoticon : emoticons) {//for each emoticon
int i = text.indexOf(emoticon);
while (i >= 0) {
final SimpleAttributeSet attrs = new SimpleAttributeSet(doc.getCharacterElement(start + i).getAttributes());
if (StyleConstants.getIcon(attrs) == null) {
switch (emoticon) {//check which emtoticon picture to apply
case SMILEY_EMOTICON:
StyleConstants.setIcon(attrs, smiley);
break;
case SAD_EMOTICON:
StyleConstants.setIcon(attrs, sad);
break;
}
doc.remove(start + i, emoticon.length());
doc.insertString(start + i, emoticon, attrs);
}
i = text.indexOf(emoticon, i + emoticon.length());
}
}
} catch (BadLocationException ex) {
ex.printStackTrace();
}
}
});
}
#Override
public void removeUpdate(DocumentEvent e) {
}
#Override
public void changedUpdate(DocumentEvent e) {
}
});
JScrollPane scrollPane = new JScrollPane(textPane);
scrollPane.setPreferredSize(new Dimension(300, 300));
frame.add(scrollPane);
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
try {//attempt to get icon for emoticons
smiley = new ImageIcon(ImageIO.read(new URL("http://facelets.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/e/m/emoticons0001.png")).getScaledInstance(24, 24, Image.SCALE_SMOOTH));
sad = new ImageIcon(ImageIO.read(new URL("http://zambia.primaryblogger.co.uk/files/2012/04/sad.jpg")).getScaledInstance(24, 24, Image.SCALE_SMOOTH));
} catch (Exception ex) {
ex.printStackTrace();
}
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
new JTextPaneWithEmoticon().initComponents();
}
});
}
}
References:
How to add smileys in java swing?