I have this class. This class paints 3 buttons, and I have an event associated with each button. I need to create an event for the keyboard, pressing a key will be the same as pressing one of the buttons. This is my class:
public class ShapedDialog extends JDialog implements KeyListener, ActionListener {
private final MainWindow parent;
public ShapedDialog(MainWindow parent, String title) {
super(parent, title, true);
this.parent = parent;
if (parent != null) {
Dimension parentSize = parent.getSize();
Point p = parent.getLocation();
setLocation(p.x + parentSize.width / 4, p.y + parentSize.height / 4);
}
JPanel messagePane = new JPanel();
messagePane.add(new JLabel());
getContentPane().add(messagePane);
JPanel buttonPane = new JPanel();
//JButton1
JButton jButton1 = new JButton();
try {
Image img = ImageIO.read(getClass().getResource("logo.png"));
jButton1.setIcon(new ImageIcon(img));
} catch (IOException ex) {
}
jButton1.addActionListener(new java.awt.event.ActionListener() {
#Override
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
//JButton2
JButton jButton2 = new JButton();
try {
Image img = ImageIO.read(getClass().getResource("logo.png"));
jButton2.setIcon(new ImageIcon(img));
} catch (IOException ex) {
}
jButton2.addActionListener(new java.awt.event.ActionListener() {
#Override
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
//JButton3
JButton jButton3 = new JButton();
try {
Image img = ImageIO.read(getClass().getResource("logo.png"));
jButton3.setIcon(new ImageIcon(img));
} catch (IOException ex) {
}
jButton3.addActionListener(new java.awt.event.ActionListener() {
#Override
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton3ActionPerformed(evt);
}
});
//Add buttons in the panel
buttonPane.setLayout(new GridLayout(3, 3));
buttonPane.add(jButton1);
buttonPane.add(jButton2);
buttonPane.add(jButton3);
getContentPane().add(buttonPane, BorderLayout.SOUTH);
setDefaultCloseOperation(DISPOSE_ON_CLOSE);
pack();
setVisible(true);
}
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here
setVisible(false);
parent.setMyPackage("Type 1");
dispose();
}
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here
setVisible(false);
parent.setMyPackage("Type 2");
dispose();
}
private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here
setVisible(false);
parent.setMyPackage("Type 3");
dispose();
}
#Override
public void actionPerformed(ActionEvent e) {
setVisible(false);
parent.setMyPackage("Type Package");
dispose();
}
public static void main(String[] a) {
JTextField component = new JTextField();
component.addKeyListener(new MyKeyListener());
ShapedDialog dlg = new ShapedDialog((MainWindow) new JFrame(), "title");
}
#Override
public void keyTyped(KeyEvent e) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
#Override
public void keyPressed(KeyEvent e) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
#Override
public void keyReleased(KeyEvent e) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
}
class MyKeyListener extends KeyAdapter {
public void keyPressed(KeyEvent evt) {
if (evt.getKeyChar() == 'a') {
System.out.println("Check for key characters: " + evt.getKeyChar());
}
if (evt.getKeyCode() == KeyEvent.VK_HOME) {
System.out.println("Check for key codes: " + evt.getKeyCode());
}
}
}
Someone can help me??
I need to create an event for the keyboard, pressing a key will be the same as pressing one of the buttons.
You need to:
Create an Action to be used by each button. See How to Use Actions
Create the JButton using the Action
Create Key Bindings for the Action and KeyStroke. See How to Use Key Bindings
Simple example:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
public class CalculatorPanel extends JPanel
{
private JTextField display;
public CalculatorPanel()
{
Action numberAction = new AbstractAction()
{
#Override
public void actionPerformed(ActionEvent e)
{
display.setCaretPosition( display.getDocument().getLength() );
display.replaceSelection(e.getActionCommand());
}
};
setLayout( new BorderLayout() );
display = new JTextField();
display.setEditable( false );
display.setHorizontalAlignment(JTextField.RIGHT);
add(display, BorderLayout.NORTH);
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout( new GridLayout(0, 5) );
add(buttonPanel, BorderLayout.CENTER);
for (int i = 0; i < 10; i++)
{
String text = String.valueOf(i);
JButton button = new JButton( text );
button.addActionListener( numberAction );
button.setBorder( new LineBorder(Color.BLACK) );
button.setPreferredSize( new Dimension(50, 50) );
buttonPanel.add( button );
KeyStroke pressed = KeyStroke.getKeyStroke(text);
InputMap inputMap = button.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW);
inputMap.put(pressed, text);
button.getActionMap().put(text, numberAction);
}
}
private static void createAndShowUI()
{
// UIManager.put("Button.margin", new Insets(10, 10, 10, 10) );
JFrame frame = new JFrame("Calculator Panel");
frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
frame.add( new CalculatorPanel() );
frame.pack();
frame.setLocationRelativeTo( null );
frame.setVisible(true);
}
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
createAndShowUI();
}
});
}
}
Related
I am creating a program, and I have my main class that works with all the JButtons, but I can't get my second class that calls the first class launch with the buttons. The JFrame will launch, but the buttons won't.
I am using eclipse just for the information.
Here is the code of my main class:
public class Unescapable extends JPanel implements ActionListener
{
private static final long serialVersionUID = 1L;
private static final Font font1 = new Font("FONT", Font.BOLD, 75);
protected JButton b1;
protected JButton b2;
protected JButton b3;
protected JButton b5;
protected JTextField t1;
public Unescapable()
{
t1 = new JTextField("Unescapable");
t1.setText("Unescapable");
t1.setBounds(225, 50, 750, 100);
t1.setForeground(Color.LIGHT_GRAY);
t1.setOpaque(true);
t1.setVisible(true);
t1.setEditable(false);
t1.setBackground(Color.BLACK);
t1.setFont(font1);
b1 = new JButton("Open Window");
b1.setActionCommand("open");
b1.setBackground(Color.GRAY);
b1.setForeground(Color.white);
b1.setOpaque(true);
b1.setBorderPainted(false);
b1.setBounds(280, 200, 390, 40);
b1.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseEntered(java.awt.event.MouseEvent evt) {
b1.setBackground(Color.BLUE);
}
public void mouseExited(java.awt.event.MouseEvent evt) {
b1.setBackground(Color.GRAY);
}
});
b2 = new JButton("Delete File");
b2.setActionCommand("delete");
b2.setBackground(Color.GRAY);
b2.setForeground(Color.white);
b2.setOpaque(true);
b2.setBorderPainted(false);
b2.setBounds(280, 255, 390, 40);
b2.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseEntered(java.awt.event.MouseEvent evt) {
b2.setBackground(Color.BLUE);
}
public void mouseExited(java.awt.event.MouseEvent evt) {
b2.setBackground(Color.GRAY);
}
});
b3 = new JButton("Info...");
b3.setActionCommand("info");
b3.setBackground(Color.GRAY);
b3.setForeground(Color.white);
b3.setOpaque(true);
b3.setBorderPainted(false);
b3.setBounds(278, 330, 185, 40);
b3.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseEntered(java.awt.event.MouseEvent evt) {
b3.setBackground(Color.BLUE);
}
public void mouseExited(java.awt.event.MouseEvent evt) {
b3.setBackground(Color.GRAY);
}
});
b5 = new JButton("Quit Game");
b5.setActionCommand("close");
b5.setBackground(Color.GRAY);
b5.setForeground(Color.white);
b5.setOpaque(true);
b5.setBorderPainted(false);
b5.setBounds(485, 330, 185, 40);
b5.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseEntered(java.awt.event.MouseEvent evt) {
b5.setBackground(Color.BLUE);
}
public void mouseExited(java.awt.event.MouseEvent evt) {
b5.setBackground(Color.GRAY);
}
});
b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
b5.addActionListener(this);
b1.setToolTipText("Opens Another JWindow");
b2.setToolTipText("Deletes \"text.txt\"");
b3.setToolTipText("Give's some information.");
add(b1);
add(b2);
add(b3);
add(b5);
add(t1);
System.out.println("Main Window Is Running");
}
public void actionPerformed(ActionEvent e)
{
if ("open".equals(e.getActionCommand()))
{
File f = new File("text.txt");
try
{
PrintWriter out = new PrintWriter(f);
out.println("TheBestMacTutorials");
out.close();
}
catch (Exception e2)
{
}
}
else if ("delete".equals(e.getActionCommand()))
{
File f = new File("text.txt");
f.delete();
}
else if ("info".equals(e.getActionCommand()))
{
InfoBook add = new InfoBook();
add.call();
}
else
{
System.out.println("Window Is Now Closing");
System.exit(0);
}
}
private static void createAndShowGUI()
{
JFrame program = new JFrame("My Program");
program.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Unescapable newContentPane = new Unescapable();
program.setContentPane(newContentPane);
program.setLayout(null);
program.setVisible(true);
program.setLocation(850, 445);
program.setSize(900, 580);
program.setTitle("Unescapable 1.0");
program.setBackground(Color.GREEN);
program.isOpaque();
program.isForegroundSet();
program.getContentPane().setBackground(Color.BLACK);
}
public static void main(String[] args)
{
javax.swing.SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
createAndShowGUI();
}
});
}
}
The code for the "Info Book":
public class InfoBook extends JFrame
{
private static final long serialVersionUID = 1L;
private static final Font font1 = new Font("FONT", Font.BOLD, 75);
protected JButton b1;
protected JButton b2;
protected JTextField t1;
public InfoBook()
{
b1 = new JButton("Cancel");
b1.setActionCommand("cancel");
b1.setBackground(Color.GRAY);
b1.setForeground(Color.white);
b1.setOpaque(true);
b1.setBorderPainted(false);
b1.setBounds(280, 200, 390, 40);
b1.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseEntered(java.awt.event.MouseEvent evt) {
b1.setBackground(Color.BLUE);
}
public void mouseExited(java.awt.event.MouseEvent evt) {
b1.setBackground(Color.GRAY);
}
});
b2 = new JButton("More Info");
b2.setBackground(Color.GRAY);
b2.setForeground(Color.WHITE);
b2.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseEntered(java.awt.event.MouseEvent evt) {
b2.setBackground(Color.BLUE);
}
public void mouseExited(java.awt.event.MouseEvent evt) {
b2.setBackground(Color.GRAY);
}
});
t1 = new JTextField("Info");
t1.setText("Info...");
t1.setBounds(225, 50, 750, 100);
t1.setForeground(Color.LIGHT_GRAY);
t1.setOpaque(true);
t1.setVisible(true);
t1.setEditable(false);
t1.setBackground(Color.BLACK);
t1.setFont(font1);
b1.setToolTipText("Opens Another JWindow");
b2.setToolTipText("Gives More Infomation");
add(b1);
add(b2);
add(t1);
System.out.println("Info is now running");
}
public static void creatAndShowGUI()
{
JFrame frame = new JFrame("Info Panel");
frame.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
InfoBook newContentPane = new InfoBook();
frame.setLayout(null);
frame.setVisible(true);
frame.setLocation(850, 445);
frame.setSize(900, 580);
frame.setTitle("Unescapable 1.0");
frame.setBackground(Color.GREEN);
frame.isOpaque();
frame.isForegroundSet();
frame.getContentPane().setBackground(Color.BLACK);
}
public static void call()
{
javax.swing.SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
creatAndShowGUI();
}
});
}
}
I believe thats all the code, and I am not very used to how to format the code in stack overflow, so I might of messed something up. I am probably just getting something messed up, so i am sorry for that but thanks in advance.
The main problem is in your createAndShowGUI in your InfoBook class...
public static void creatAndShowGUI() {
JFrame frame = new JFrame("Info Panel");
frame.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
InfoBook newContentPane = new InfoBook();
frame.setLayout(null);
frame.setVisible(true);
frame.setLocation(850, 445);
frame.setSize(900, 580);
frame.setTitle("Unescapable 1.0");
frame.setBackground(Color.GREEN);
frame.isOpaque();
frame.isForegroundSet();
frame.getContentPane().setBackground(Color.BLACK);
}
Essentially, you create an instance of newContentPane, but you never use it.
But, you're about to run into a second problem...
} else if ("info".equals(e.getActionCommand())) {
InfoBook add = new InfoBook();
add.call();
Here you create an instance of InfoBook, but this instance will have no relationship to the one that is created in your creatAndShowGUI and which I assume you want to show on the screen, so getting information from the class will be impossible
I suspect, you actually want to use a JDialog of some kind instead, which will allow you to present a window to the user, BUT which will block the execution of the code until the user closes the window, at which time you could then interrogate the object for it's information.
See How to Make Dialogs for more details
As a general rule of thumb, you don't want to extend from top level containers like JFrame or JDialog, instead, you want to use a JPanel as the base component and add these to what ever container you need.
Avoid using null layouts, pixel perfect layouts are an illusion within modern ui design. There are too many factors which affect the individual size of components, none of which you can control. Swing was designed to work with layout managers at the core, discarding these will lead to no end of issues and problems that you will spend more and more time trying to rectify
You might also like to have a look at The Use of Multiple JFrames, Good/Bad Practice?
The situation is that the JButton1 corresponds to JLabel1, JButton2 to JLabel2 and so on. However I want to disable the JButton# when the value of Jlabel returns on the TextField and reenable them when it is gone.
import java.awt.*;
import java.awt.event.*;
import java.util.ArrayList;
import java.util.*;
import javax.swing.*;
public class qwerty {
ArrayList<JTextField> tfs = new ArrayList<JTextField>();
ArrayList<JButton> bts = new ArrayList<JButton>();
int counter = 0;
String answer;
JLabel j1 = new JLabel("Mark");
JLabel j2 = new JLabel("Joe");
JLabel j3 = new JLabel("John");
JLabel j4 = new JLabel("Ray");
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
new qwerty();
}
});
}
public qwerty() {
JFrame frame = new JFrame();
frame.getContentPane().setLayout(new FlowLayout());
// Add new buttons to bts
bts.add(new JButton("Button1"));
bts.add(new JButton("Button2"));
bts.add(new JButton("Button3"));
bts.add(new JButton("Button4"));
// Add new textfields to tfs
tfs.add(new JTextField());
tfs.add(new JTextField());
tfs.add(new JTextField());
j1.setPreferredSize(new Dimension(100, 25));
j2.setPreferredSize(new Dimension(100, 25));
j3.setPreferredSize(new Dimension(100, 25));
j4.setPreferredSize(new Dimension(100, 25));
for (JButton b : bts) {
b.addActionListener(new ButtonActionListener());
b.setPreferredSize(new Dimension(100, 25));
frame.getContentPane().add(b);
}
frame.getContentPane().add(j1);
frame.getContentPane().add(j2);
frame.getContentPane().add(j3);
frame.getContentPane().add(j4);
for (JTextField tf : tfs) {
tf.setPreferredSize(new Dimension(100, 25));
tf.setEditable(false);
frame.getContentPane().add(tf);
}
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(500, 500);
frame.setVisible(true);
}
public class ButtonActionListener implements ActionListener {
#Override
public void actionPerformed(ActionEvent e) {
if (counter >= tfs.size()) {
counter = 0;
}
String a = ((AbstractButton) e.getSource()).getText();
if (a == "Button1"){
tfs.get(counter).setText(j1.getText());
}
if (a == "Button2"){
tfs.get(counter).setText(j2.getText());
}
if (a == "Button3"){
tfs.get(counter).setText(j3.getText());
}
if (a == "Button4"){
tfs.get(counter).setText(j4.getText());
}
counter++;
}
}
}
You would use a DocumentListener to monitor the change in the text field and then set the state of the button.
Here is some code that allows you to associate 1 (or more) text fields with a button.
import java.awt.*;
import java.awt.event.*;
import java.util.List;
import java.util.ArrayList;
import javax.swing.*;
import javax.swing.event.*;
public class DataEntered implements DocumentListener
{
private JButton button;
private List<JTextField> textFields = new ArrayList<JTextField>();
public DataEntered(JButton button)
{
this.button = button;
}
public void addTextField(JTextField textField)
{
textFields.add( textField );
textField.getDocument().addDocumentListener( this );
}
public boolean isDataEntered()
{
for (JTextField textField : textFields)
{
if (textField.getText().trim().length() == 0)
return false;
}
return true;
}
#Override
public void insertUpdate(DocumentEvent e)
{
checkData();
}
#Override
public void removeUpdate(DocumentEvent e)
{
checkData();
}
#Override
public void changedUpdate(DocumentEvent e) {}
private void checkData()
{
button.setEnabled( isDataEntered() );
}
private static void createAndShowUI()
{
JButton submit = new JButton( "Submit" );
submit.setEnabled( false );
JTextField textField1 = new JTextField(10);
JTextField textField2 = new JTextField(10);
DataEntered de = new DataEntered( submit );
de.addTextField( textField1 );
de.addTextField( textField2 );
JFrame frame = new JFrame("SSCCE");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(textField1, BorderLayout.WEST);
frame.add(textField2, BorderLayout.EAST);
frame.add(submit, BorderLayout.SOUTH);
frame.pack();
frame.setLocationByPlatform( true );
frame.setVisible( true );
}
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
createAndShowUI();
}
});
}
}
Text must be entered in all text field in order to enable the button.
In your case you have a one-to-one mapping of text field to button, so you only need to enter text in one text field in order to enable the related button.
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
public class qwerty implements DocumentListener{
ArrayList<JTextField> tfs = new ArrayList<JTextField>();
ArrayList<JButton> bts = new ArrayList<JButton>();
int counter = 0;
String answer;
JLabel j1 = new JLabel("Mark");
JLabel j2 = new JLabel("Joe");
JLabel j3 = new JLabel("John");
JLabel j4 = new JLabel("Ray");
JButton b1 = new JButton("Button1");
JButton b2 = new JButton("Button2");
JButton b3 = new JButton("Button3");
JButton b4 = new JButton("Button4");
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
new qwerty();
}
});
}
public qwerty() {
JFrame frame = new JFrame();
frame.getContentPane().setLayout(new FlowLayout());
// Add new buttons to bts
bts.add(b1);
bts.add(b2);
bts.add(b3);
bts.add(b4);
Add new textfields to tfs
tfs.add(new JTextField());
tfs.add(new JTextField());
tfs.add(new JTextField());
j1.setPreferredSize(new Dimension(100, 25));
j2.setPreferredSize(new Dimension(100, 25));
j3.setPreferredSize(new Dimension(100, 25));
j4.setPreferredSize(new Dimension(100, 25));
for (JButton b : bts) {
b.addActionListener(new ButtonActionListener());
b.setPreferredSize(new Dimension(100, 25));
frame.getContentPane().add(b);
}
frame.getContentPane().add(j1);
frame.getContentPane().add(j2);
frame.getContentPane().add(j3);
frame.getContentPane().add(j4);
for (JTextField tf : tfs) {
tf.setPreferredSize(new Dimension(100, 25));
tf.setEditable(false);
tf.getDocument().addDocumentListener( this );
frame.getContentPane().add(tf);
}
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(500, 500);
frame.setVisible(true);
}
public boolean isDataEntered1()
{
for (JTextField tf : tfs)
{
if ("Mark".equals(tf.getText()))
return false;
}
return true;
}
public boolean isDataEntered2()
{
for (JTextField tf : tfs)
{
if ("Joe".equals(tf.getText()))
return false;
}
return true;
}
public boolean isDataEntered3()
{
for (JTextField tf : tfs)
{
if ("John".equals(tf.getText()))
return false;
}
return true;
}
public boolean isDataEntered4()
{
for (JTextField tf : tfs)
{
if ("Ray".equals(tf.getText()))
return false;
}
return true;
}
#Override
public void insertUpdate(DocumentEvent e) {
checkData();
}
#Override
public void removeUpdate(DocumentEvent e) {
checkData();
}
#Override
public void changedUpdate(DocumentEvent e) {}
private void checkData()
{
b1.setEnabled(isDataEntered1());
b2.setEnabled(isDataEntered2());
b3.setEnabled(isDataEntered3());
b4.setEnabled(isDataEntered4());
}
public class ButtonActionListener implements ActionListener {
#Override
public void actionPerformed(ActionEvent e) {
if (counter >= tfs.size()) {
counter = 0;
}
String a = ((AbstractButton) e.getSource()).getText();
if (a == "Button1"){
tfs.get(counter).setText(j1.getText());
}
if (a == "Button2"){
tfs.get(counter).setText(j2.getText());
}
if (a == "Button3"){
tfs.get(counter).setText(j3.getText());
}
if (a == "Button4"){
tfs.get(counter).setText(j4.getText());
}
counter++;
}
}
}
I'm writing a Chat program. I designed a mock-up gui with smileys where when the user clicks on a smiley(jbutton) it prints it onto a textpane. I managed to add an advanced feature where when a user types in ":)" and sends it, it inserts the smiley instead of the string - using the insertIcon() method. The problem I have is that it only prints the smiley once rather than multiple times. So if I type "Hi :) My name is Jack :)" it only inserts the icon ONCE. Any suggestions?
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class SmileyTesterGUI extends JFrame {
JPanel main = new JPanel();
JPanel south = new JPanel();
JPanel messageCenter = new JPanel();
JPanel smileysNorth = new JPanel();
JTextField text;
JTextPane tPane;
Icon happy;
Icon smile;
Icon tongue;
Icon veryHappy;
Icon wink;
Icon laugh;
Icon sad;
Icon verySad;
Icon cry;
public SmileyTesterGUI() {
super("Smileys");
add(main);
main.setLayout(new BorderLayout());
main.add(south, BorderLayout.SOUTH);
south.setLayout(new BorderLayout());
south.add(messageCenter, BorderLayout.CENTER);
south.add(smileysNorth, BorderLayout.NORTH);
// textpane panel
tPane = new JTextPane();
JScrollPane sPane = new JScrollPane(tPane);
main.add(sPane);
tPane.setEditable(false);
// smileysPanel
smileysNorth.setLayout(new GridLayout(1, 0));
JButton smiley1 = new JButton();
JButton smiley2 = new JButton();
JButton smiley3 = new JButton();
JButton smiley4 = new JButton();
JButton smiley5 = new JButton();
JButton smiley6 = new JButton();
JButton smiley7 = new JButton();
JButton smiley8 = new JButton();
JButton smiley9 = new JButton();
smileysNorth.add(smiley1);
smileysNorth.add(smiley2);
smileysNorth.add(smiley3);
smileysNorth.add(smiley4);
smileysNorth.add(smiley5);
smileysNorth.add(smiley6);
smileysNorth.add(smiley7);
smileysNorth.add(smiley8);
smileysNorth.add(smiley9);
// set smileys(icon) to each button - pathed from personal directory
happy = new ImageIcon(getClass().getResource("smileys/Smile1.png"));
smiley1.setIcon(happy);
smile = new ImageIcon(getClass().getResource("smileys/Smile2.png"));
smiley2.setIcon(smile);
tongue = new ImageIcon(getClass().getResource("smileys/Smile3.png"));
smiley3.setIcon(tongue);
veryHappy = new ImageIcon(getClass().getResource("smileys/Smile4.png"));
smiley4.setIcon(veryHappy);
wink = new ImageIcon(getClass().getResource("smileys/Smile5.png"));
smiley5.setIcon(wink);
laugh = new ImageIcon(getClass().getResource("smileys/Smile6.png"));
smiley6.setIcon(laugh);
sad = new ImageIcon(getClass().getResource("smileys/Smile7.png"));
smiley7.setIcon(sad);
verySad = new ImageIcon(getClass().getResource("smileys/Smile8.png"));
smiley8.setIcon(verySad);
cry = new ImageIcon(getClass().getResource("smileys/Smile9.png"));
smiley9.setIcon(cry);
// smileys print on the textpane
smiley1.addMouseListener(new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent e) {
tPane.insertIcon(new ImageIcon(getClass().getResource(
"smileys/Smile1.png")));
}
});
smiley2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
tPane.insertIcon(new ImageIcon(getClass().getResource(
"smileys/Smile2.png")));
}
});
smiley3.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
tPane.insertIcon(new ImageIcon(getClass().getResource(
"smileys/Smile3.png")));
}
});
smiley4.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
tPane.insertIcon(new ImageIcon(getClass().getResource(
"smileys/Smile4.png")));
}
});
smiley5.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
tPane.insertIcon(new ImageIcon(getClass().getResource(
"smileys/Smile5.png")));
}
});
smiley6.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
tPane.insertIcon(new ImageIcon(getClass().getResource(
"smileys/Smile6.png")));
}
});
smiley7.addMouseListener(new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent e) {
tPane.insertIcon(new ImageIcon(getClass().getResource(
"smileys/Smile7.png")));
}
});
smiley8.addMouseListener(new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent e) {
tPane.insertIcon(new ImageIcon(getClass().getResource(
"smileys/Smile8.png")));
}
});
smiley9.addMouseListener(new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent e) {
tPane.insertIcon(new ImageIcon(getClass().getResource(
"smileys/Smile9.png")));
}
});
// messagePanel
messageCenter.setLayout(new BorderLayout());
text = new JTextField();
JButton send = new JButton("Send");
messageCenter.add(text);
messageCenter.add(send, BorderLayout.EAST);
text.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
sendMessage();
}
});
send.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
sendMessage();
}
});
setLocation(500, 0);
setSize(600, 250);
}
public void sendMessage() {
String a = text.getText();
// tPane.setText(a);
// tPane.getText();
if (a.equals(":D")) {
tPane.insertIcon(veryHappy);
} else if (a.equals(":)")) {
tPane.insertIcon(smile);
} else if (a.equals(":(")) {
tPane.insertIcon(sad);
} else if (a.equalsIgnoreCase(":P")) {
tPane.insertIcon(tongue);
} else if (a.equals(";)")) {
tPane.insertIcon(wink);
}
text.setText(null);
text.requestFocus();
}
public static void main(String[] args) {
new SmileyTesterGUI().setVisible(true);
}
}
insertIcon() method of JTextPane uses selection (caret position in simplest case). So in your case you always replace the icon just once.
Your sendMessage() doesn't check multiple occurences of ":)" in the message. Use while loop obtaining indexes of the ":)" and for each index make it selected and then use insertIcon()
I'm writing a chat program in Java. I made a section for smileys. I managed to print the smileys on a text pane every time its clicked but when I click on the same smiley more than once it only prints it once. Any help?
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class SmileyTesterGUI extends JFrame {
JPanel main = new JPanel();
JPanel south = new JPanel();
JPanel messageCenter = new JPanel();
JPanel smileysNorth = new JPanel();
JTextField text;
JTextPane tPane;
Icon happy;
Icon smile;
Icon tongue;
Icon veryHappy;
Icon wink;
Icon laugh;
Icon sad;
Icon verySad;
Icon cry;
int number = 0;
boolean check = true;
public SmileyTesterGUI() {
super("Smileys");
add(main);
main.setLayout(new BorderLayout());
main.add(south, BorderLayout.SOUTH);
south.setLayout(new BorderLayout());
south.add(messageCenter, BorderLayout.CENTER);
south.add(smileysNorth, BorderLayout.NORTH);
// textpane panel
tPane = new JTextPane();
JScrollPane sPane = new JScrollPane(tPane);
main.add(sPane);
tPane.setEditable(false);
// smileysPanel
smileysNorth.setLayout(new GridLayout(1, 0));
JButton smiley1 = new JButton();
JButton smiley2 = new JButton();
JButton smiley3 = new JButton();
JButton smiley4 = new JButton();
JButton smiley5 = new JButton();
JButton smiley6 = new JButton();
JButton smiley7 = new JButton();
JButton smiley8 = new JButton();
JButton smiley9 = new JButton();
smileysNorth.add(smiley1);
smileysNorth.add(smiley2);
smileysNorth.add(smiley3);
smileysNorth.add(smiley4);
smileysNorth.add(smiley5);
smileysNorth.add(smiley6);
smileysNorth.add(smiley7);
smileysNorth.add(smiley8);
smileysNorth.add(smiley9);
// set smileys(icon) to each button - pathed from personal directory
happy = new ImageIcon(getClass().getResource("smileys/Smile1.png"));
smiley1.setIcon(happy);
smile = new ImageIcon(getClass().getResource("smileys/Smile2.png"));
smiley2.setIcon(smile);
tongue = new ImageIcon(getClass().getResource("smileys/Smile3.png"));
smiley3.setIcon(tongue);
veryHappy = new ImageIcon(getClass().getResource("smileys/Smile4.png"));
smiley4.setIcon(veryHappy);
wink = new ImageIcon(getClass().getResource("smileys/Smile5.png"));
smiley5.setIcon(wink);
laugh = new ImageIcon(getClass().getResource("smileys/Smile6.png"));
smiley6.setIcon(laugh);
sad = new ImageIcon(getClass().getResource("smileys/Smile7.png"));
smiley7.setIcon(sad);
verySad = new ImageIcon(getClass().getResource("smileys/Smile8.png"));
smiley8.setIcon(verySad);
cry = new ImageIcon(getClass().getResource("smileys/Smile9.png"));
smiley9.setIcon(cry);
// smileys print on the textpane
smiley1.addMouseListener(new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent e) {
tPane.insertIcon(happy);
}
});
smiley2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
tPane.insertIcon(smile);
}
});
smiley3.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
tPane.insertIcon(tongue);
}
});
smiley4.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
tPane.insertIcon(veryHappy);
}
});
smiley5.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
tPane.insertIcon(wink);
}
});
smiley6.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
tPane.insertIcon(laugh);
}
});
smiley7.addMouseListener(new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent e) {
tPane.insertIcon(sad);
}
});
smiley8.addMouseListener(new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent e) {
tPane.insertIcon(verySad);
}
});
smiley9.addMouseListener(new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent e) {
tPane.insertIcon(cry);
}
});
// messagePanel
messageCenter.setLayout(new BorderLayout());
text = new JTextField();
JButton send = new JButton("Send");
messageCenter.add(text);
messageCenter.add(send, BorderLayout.EAST);
text.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
sendMessage();
}
});
send.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
sendMessage();
}
});
setLocation(500, 0);
setSize(600, 250);
}
public void sendMessage() {
String a = text.getText();
//
// if(a){
// tPane.setText(a);
// tPane.getText();
// }
if (a.contains(":D")) {
tPane.insertIcon(veryHappy);
} else if (a.contains(":)")) {
tPane.insertIcon(happy);
} else if (a.contains(":(")) {
tPane.insertIcon(sad);
}
// text.setText(null);
// text.requestFocus();
}
public static void main(String[] args) {
new SmileyTesterGUI().setVisible(true);
}
}
That is because you cannot add the same ImageIcon to the JTextPane more then once.
You can create the ImageIcons dynamically in the ActionListener, every time a smiley is clicked create a new ImageIcon
smiley2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
tPane.insertIcon(new ImageIcon(getClass().getResource("smileys/Smile2.png")));
}
});
In my form, when i press ENTER button in my keyboard, the okAction() method should be invoke (and invoke perfectly).
My problem is in focus state, When i fill the text fields and then press the ENTER button, the okAction() didn't invoked, because the focus is on the second text field (not on the panel).
How fix this problem?
public class T3 extends JFrame implements ActionListener {
JButton cancelBtn, okBtn;
JLabel fNameLbl, lNameLbl, tempBtn;
JTextField fNameTf, lNameTf;
public T3() {
add(createForm(), BorderLayout.NORTH);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(400, 500);
setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
new T3();
}
});
}
public JPanel createForm() {
JPanel panel = new JPanel();
panel.getInputMap().put(KeyStroke.getKeyStroke("ENTER"), "Button");
panel.getActionMap().put("Button", new AbstractAction() {
#Override
public void actionPerformed(ActionEvent e) {
okAction();
}
});
okBtn = new JButton("Ok");
okBtn.addActionListener(this);
cancelBtn = new JButton("Cancel");
tempBtn = new JLabel();
fNameLbl = new JLabel("First Name");
lNameLbl = new JLabel("Last Name");
fNameTf = new JTextField(10);
fNameTf.setName("FnTF");
lNameTf = new JTextField(10);
lNameTf.setName("LnTF");
panel.add(fNameLbl);
panel.add(fNameTf);
panel.add(lNameLbl);
panel.add(lNameTf);
panel.add(okBtn);
panel.add(cancelBtn);
panel.add(tempBtn);
panel.setLayout(new SpringLayout());
SpringUtilities.makeCompactGrid(panel, 3, 2, 50, 10, 80, 60);
return panel;
}
private void okAction() {
if (fNameTf.getText().trim().length() != 0 && lNameTf.getText().trim().length() != 0) {
System.out.println("Data saved");
} else System.out.println("invalid data");
}
#Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == okBtn) {
okAction();
}
}
}
Declare a default button for your GUI's JRootPane:
public T3() {
//!! ..... etc...
setVisible(true);
getRootPane().setDefaultButton(okBtn);
}
In fact with a default button set, I don't see that you need to use key bindings.