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Java : Can't display JPanel above a JLabel with image

here's my problem : I display an ArrayList of JLabel with image and a JPanel with buttons inside a JPanel and I want to display my JPanel above my JLabel when I press a button. But when I press the button, my JPanel is under the JLabels.
Please don't tell me to use a JLayerPane cause if I can do without it it would be best.
Thanks for your solutions.
Here's an exemple of my code :
To run this put the image 100x100 found here :
http://www.html5gamedevs.com/topic/32190-image-very-large-when-using-the-dragging-example/
in a file named image
Main :
public class Main {
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.setTitle("test");
frame.setSize(900,700);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setResizable(false);
frame.setLocationRelativeTo(null);
JPanelControler ctrl = new JPanelControler();
frame.add(ctrl.getMyJpanel());
frame.setVisible(true);
}
}
MyJPanelControler :
public class JPanelControler {
private MyJPanel myJpanel;
public JPanelControler() {
myJpanel = new MyJPanel();
myJpanel.createJLabel();
myJpanel.getButton().addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
myJpanel.displayJPanel();
}
});
}
public MyJPanel getMyJpanel() {
return myJpanel;
}
}
MyJPanel :
public class MyJPanel extends JPanel {
private JButton button;
private ArrayList<JLabel> labels;
//a JPanel that contains buttons,... I won't put this class here
private JPanel panel;
public MyJPanel() {
setLayout(null);
button = new JButton("X");
button.setBounds(600,600,50,50);
add(button);
}
public void createJLabel() {
labels = new ArrayList<>();
JLabel label;
try {
BufferedImage image = ImageIO.read(new File("images/image.jpg"));
for(int i=0; i<2; i++) {
label = new JLabel(new ImageIcon(image));
label.setBounds(i*100,50,image.getWidth(), image.getHeight());
labels.add(label);
add(label);
}
} catch (IOException e) {
e.printStackTrace();
}
}
public void displayJPanel() {
panel = new JPanel();
panel.setLayout(null);
JButton b = new JButton("Ok");
b.setBounds(0,0,100, 50);
JButton b2 = new JButton("Cancel");
b2.setBounds(0,50,100, 50);
panel.setBounds(150,50, 100, 100);
panel.add(b);
panel.add(b2);
add(panel);
refresh();
}
public void refresh() {
invalidate();
revalidate();
repaint();
}
public JButton getButton() {return this.button; }
}

If you want the buttons to appear over plain images, then you have one of two options:
Draw the images in a paintComponent override in the main JPanel and not as ImageIcons within a JLabel. This will allow you to add components to this same JPanel, including buttons and such, and the images will remain in the background. If you go this route, be sure to call the super.paintComponent(g); method first thing in your override.
Or you could use a JLayeredPane (regardless of your not wanting to do this). You would simply put the background JPanel into the JLayeredPane.DEFAULT_LAYER, the bottom layer (constant is Integer 0), and place the newly displayed JButton Panel in the JLayeredPane.PALETTE_LAYER, which us just above the default. If you go this route, be sure that the added JPanel is not opaque, else it will cover over all images completely.
For an example of the 2nd suggestion, please see below:
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import javax.imageio.ImageIO;
import javax.swing.*;
public class JPanelControler {
private MyJPanel myJpanel;
public JPanelControler() {
myJpanel = new MyJPanel();
myJpanel.createJLabel();
myJpanel.getButton().addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
myJpanel.displayJPanel();
}
});
}
public MyJPanel getMyJpanel() {
return myJpanel;
}
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.setTitle("test");
frame.setSize(900, 700);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setResizable(false);
frame.setLocationRelativeTo(null);
JPanelControler ctrl = new JPanelControler();
frame.add(ctrl.getMyJpanel());
frame.setVisible(true);
}
}
class MyJPanel extends JLayeredPane {
private static final String IMG_PATH = "https://upload.wikimedia.org/wikipedia"
+ "/commons/thumb/f/fc/Gros_Perr%C3%A9.jpg/100px-Gros_Perr%C3%A9.jpg";
private JButton button;
private ArrayList<JLabel> labels;
// a JPanel that contains buttons,... I won't put this class here
private JPanel panel;
public MyJPanel() {
setLayout(null);
button = new JButton("X");
button.setBounds(600, 600, 50, 50);
add(button, JLayeredPane.DEFAULT_LAYER); // add to the bottom
}
public void createJLabel() {
labels = new ArrayList<>();
JLabel label;
try {
URL imgUrl = new URL(IMG_PATH); // ** added to make program work for all
BufferedImage image = ImageIO.read(imgUrl);
for (int i = 0; i < 2; i++) {
label = new JLabel(new ImageIcon(image));
label.setBounds(i * 100, 50, image.getWidth(), image.getHeight());
labels.add(label);
add(label);
}
} catch (IOException e) {
e.printStackTrace();
}
}
public void displayJPanel() {
panel = new JPanel();
panel.setLayout(null);
panel.setOpaque(false); // ** make sure can see through
JButton b = new JButton("Ok");
b.setBounds(0, 0, 100, 50);
JButton b2 = new JButton("Cancel");
b2.setBounds(0, 50, 100, 50);
panel.setBounds(150, 50, 100, 100);
panel.add(b);
panel.add(b2);
add(panel, JLayeredPane.PALETTE_LAYER); // add it above the default layer
refresh();
}
public void refresh() {
// invalidate(); // not needed
revalidate();
repaint();
}
public JButton getButton() {
return this.button;
}
}

JButton is not adding

I'm not sure why my JButton is not displaying when I add it to the JPanel class: if my class extends JPanel, shouldn't this.add be sufficient? And if I remove this Jpanel class from another Jpanel, the components attached to this panel should disappear as well right? Thank you!
public class Menu extends JPanel{
private static final long serialVersionUID = 1L;
static boolean startGame = false;
public static String user;
public Menu(final JFrame frame) {
JPanel userName = new JPanel(); // create new JPanel
final JTextField text = new JTextField();
text.setText("input your username here");
//adds userName input box to the panel
Action action = new AbstractAction(){
private static final long serialVersionUID = 1L;
#Override
public void actionPerformed(ActionEvent e) {
user = text.getText();
text.setVisible(false);
Menu.startGame = true;
}};
text.addActionListener(action);
userName.add(text);
frame.add(userName, BorderLayout.SOUTH);
frame.revalidate();
frame.repaint();
setFocusable(true);
addMouseListener(new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent e) {
sndMenu newMenu = new sndMenu(frame);
newMenu.setVisible(true);
}
});
/**
* this does not display help!
*/
//add a button to the menu called "help"
JButton help = new JButton("get instructions");
this.add(help,BorderLayout.CENTER);
help.setVisible(true);
help.addMouseListener(new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent e) {
instructions instr = new instructions(frame);
frame.add(instr);
frame.revalidate();
frame.repaint();
}
});
}
public void paint (Graphics g) {
super.paint(g);
g.setColor(Color.black);
g.fillRect(0, 0, Game.WIDTH, Game.HEIGHT);
Font fnt0 = new Font("Manaspace", Font.BOLD, 40);
Font fnt1 = new Font("Manaspace", Font.BOLD, 30);
g.setFont(fnt0);
g.setColor(Color.white);
g.drawString("Welcome To Jumping Box!", 120, 300);
g.setFont(fnt1);
g.drawString("Click to play!", 260, 400);
}
}

ActionListener to draw shapes on separate panel

I want my GUI to draw circles/rectangles on the exact position I coded in the method paintComponent when I click on the respective buttons.
But I just don't know how to go on. What should I tell actionPerformed to do? Trying for a few hours to figure out a way, but I'm only getting errors.
public class Kreise extends JFrame {
Kreise() {
setLayout(new GridLayout(2, 1));
JLabel label = new JLabel("Draw Circ / Rect here: ");
label.setLayout(new FlowLayout(FlowLayout.CENTER));
JPanel jp1 = new JPanel();
jp1.setBackground(Color.LIGHT_GRAY);;
jp1.add(label);
JPanel jp2 = new JPanel(new FlowLayout());
JButton circ = new JButton("Circle");
JButton rect = new JButton("Rectangle");
circ.addActionListener(new KRListener(true));
rect.addActionListener(new KRListener(false));
jp2.add(circ);
jp2.add(rect);
MyPanel obj = new MyPanel();
jp1.add(obj);
add(jp1);
add(jp2);
setSize(400, 250);
setDefaultCloseOperation(EXIT_ON_CLOSE);
setVisible(true);
}
public class MyPanel extends JPanel {
public boolean circleZ = true;
public void paintComponent(Graphics g) {
if (circleZ = true) {
super.paintComponent(g);
g.drawOval(150, 50, 50, 50);
} else if (circleZ = false) {
super.paintComponent(g);
g.drawRect(150, 50, 50, 50);
}
}
}
public class KRListener implements ActionListener {
boolean b;
KRListener(boolean b) {
this.b = b;
}
public void actionPerformed(ActionEvent e) {
?
}
}
public static void main(String[] args) {
new Kreise();
}
}

Presuming I understand the question clearly (you wish to toggle between the a rectangle or circle), in the ActionListener implementation you need to:
Toggle the appropriate boolean value
Call repaint on the JPanel instance that performs the painting
One way to accomplish these steps is to have a single toggle JButton, and pass an instance of the JPanel used for drawing to your ActionListener implementation, which can be used to accomplish both steps above:
public class KRListener implements ActionListener {
private MyPanel panel;
KRListener(MyPanel panel) {
this.panel = panel;
}
#Override
public void actionPerformed(ActionEvent e) {
panel.circleZ = !panel.circleZ;
panel.repaint();
}
}
And when you paint:
if ( circleZ ){
g.drawOval(150, 50, 50, 50);
}else{
g.drawRect(150, 50, 50, 50);
}

I dont know what you are using the global boolean variable b for But I noticed that you have to call the repaint() method when you press the Button.
public class KRListener implements ActionListener {
boolean b;
KRListener(boolean b) {
this.b = b;
}
#Override
public void actionPerformed(ActionEvent e){
//add some code here to change properties of the drawing before calling the repaint method?
repaint();
}
}

Receive KeyEvents when JTextField is focused

I'm developing a game and I have a JFrame that receives in input the player name in a JTextField.
What I want is the possibility to close the window by either pressing a JButton or by pressing the ENTER key.
When the window opens the JTextField must have the focus (the cursor should appear in the component).
I already saw:
How do you make key bindings for a java.awt.Frame?
How do you make key binding for a JFrame no matter what JComponent is in focus?
but I have not solved the problem, there's probably something wrong in the focus management.
I tried the following code:
public class PlayerNameWindow extends JFrame implements KeyListener {
private String playerName;
private JLabel backgroundLabel;
private JLabel enterNameLabel;
private JButton confirmButton;
private JTextField nameField;
private Image background;
public PlayerNameWindow() {
initComponents();
}
private void initComponents() {
backgroundLabel = new JLabel();
enterNameLabel = new JLabel();
confirmButton = new JButton();
nameField = new JTextField();
setDefaultCloseOperation(EXIT_ON_CLOSE);
setPreferredSize(new Dimension(400, 200));
setResizable(false);
getContentPane().setLayout(null);
addKeyListener(this);
enterNameLabel.setFont(new Font("Tahoma", 1, 18));
enterNameLabel.setForeground(new Color(255, 255, 255));
enterNameLabel.setText("Enter your name:");
getContentPane().add(enterNameLabel);
enterNameLabel.setBounds(40, 80, 160, 30);
confirmButton.setText("Confirm");
confirmButton.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent evt) {
confirmButtonMouseClicked(evt);
}
});
confirmButton.setBounds(160, 150, 90, 25);
getContentPane().add(confirmButton);
getContentPane().add(nameField);
nameField.setBounds(220, 80, 140, 30);
getContentPane().add(backgroundLabel);
backgroundLabel.setBounds(0, 0, 400, 200);
pack();
setLocationRelativeTo(null);
}
private void confirmButtonMouseClicked(MouseEvent evt) {
confirmAction();
}
private void confirmAction() {
playerName = nameField.getText();
System.exit(0);
}
public String getPlayerName() {
return this.playerName;
}
public void keyPressed(KeyEvent e) {
int code = e.getKeyCode();
if (code == KeyEvent.VK_ENTER)
System.exit(0);
}
public void keyReleased(KeyEvent e) {
//do-nothing
}
public void keyTyped(KeyEvent e) {
//do-nothing
}
}
How can I do?
Thanks

add keyListener to the JTextField. in your code, nameField.addKeyListener(this);

How to invoke a progress bar by clicking a button in another frame?

I have two frames in my java program. One is for the credential window and another for the progress bar. When I click the login button the progress bar should also start working. This is my code
package Javapkg;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.beans.*;
import java.io.IOException;
import java.util.Map;
import java.util.Random;
public class ProgressBarDemo extends JPanel implements ActionListener,
PropertyChangeListener {
private static final long serialVersionUID = 1L;
JFrame frame;
JPanel panel;
JTextField userText;
JPasswordField passwordText;
JButton loginButton;
JLabel userLabel;
JLabel passwordLabel;
JButton cancelButton;
JButton startButton;
private JProgressBar progressBar;
// private JButton startButton;
private JTextArea taskOutput;
private Task task;
class Task extends SwingWorker<Void, Void> {
/*
* Main task. Executed in background thread.
*/
public void Credential() {
JFrame frame = new JFrame();
frame.setUndecorated(true);
frame.setBackground(new Color(0, 0, 0, 0));
frame.setSize(new Dimension(400, 300));
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
panel = new JPanel() {
private static final long serialVersionUID = 1L;
#Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
if (g instanceof Graphics2D) {
final int R = 220;
final int G = 220;
final int B = 250;
Paint p = new GradientPaint(0.0f, 0.0f, new Color(R, G,
B, 0), 0.0f, getHeight(), new Color(R, G, B,
255), true);
Graphics2D g2d = (Graphics2D) g;
g2d.setPaint(p);
g2d.fillRect(0, 0, getWidth(), getHeight());
Font font = new Font("Serif", Font.PLAIN, 45);
g2d.setFont(font);
g2d.setColor(Color.lightGray);
g2d.drawString("Get Credential", 60, 80);
}
}
};
frame.setContentPane(panel);
frame.setLayout(new FlowLayout());
frame.placeComponents(panel);
}
public void placeComponents(JPanel panel) {
panel.setLayout(null);
userLabel = new JLabel("User");
userLabel.setBounds(40, 100, 80, 25);
panel.add(userLabel);
userText = new JTextField(20);
userText.setBounds(130, 100, 160, 25);
userText.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
panel.add(userText);
passwordLabel = new JLabel("Password");
passwordLabel.setBounds(40, 140, 80, 25);
panel.add(passwordLabel);
passwordText = new JPasswordField(20);
passwordText.setBounds(130, 140, 160, 25);
panel.add(passwordText);
loginButton = new JButton("login");
loginButton.setBounds(100, 180, 80, 25);
loginButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
ProcessBuilder pb = new ProcessBuilder("powershell.exe",
"-File", "D:\\MyPowershell\\stage1.ps1");
Map<String, String> env = pb.environment();
env.put("USER", userText.getText());
env.put("PASS", passwordText.getText());
System.out.println(userText.getText());
System.out.println(passwordText.getText());
try {
Process process = pb.start();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
});
panel.add(loginButton);
cancelButton = new JButton("cancel");
cancelButton.setBounds(220, 180, 80, 25);
cancelButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
panel.add(cancelButton);
}
}
public Void doInBackground() {
Random random = new Random();
int progress = 0;
// Initialize progress property.
setProgress(0);
while (progress < 100) {
// Sleep for up to one second.
try {
Thread.sleep(random.nextInt(1000));
} catch (InterruptedException ignore) {
}
// Make random progress.
progress += random.nextInt(10);
setProgress(Math.min(progress, 100));
}
return null;
}
private void setProgress(int min) {
// TODO Auto-generated method stub
}
/*
* Executed in event dispatching thread
*/
public void done() {
Toolkit.getDefaultToolkit().beep();
startButton.setEnabled(true);
// turn off the wait cursor
taskOutput.append("Done!\n");
}
public ProgressBarDemo() {
super(new BorderLayout());
// Create the demo's UI.
//startButton = new JButton("Start");
//startButton.setActionCommand("start");
//startButton.addActionListener(this);
progressBar = new JProgressBar(0, 100);
progressBar.setValue(0);
progressBar.setStringPainted(true);
taskOutput = new JTextArea(5, 20);
taskOutput.setMargin(new Insets(5, 5, 5, 5));
taskOutput.setEditable(false);
JPanel panel = new JPanel();
//panel.add(startButton);
panel.add(progressBar);
add(panel, BorderLayout.PAGE_START);
add(new JScrollPane(taskOutput), BorderLayout.CENTER);
setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));
}
/**
* Invoked when the user presses the start button.
*/
public void actionPerformed(ActionEvent evt) {
// startButton.setEnabled(false);
setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
// Instances of javax.swing.SwingWorker are not reusuable, so
// we create new instances as needed.
task = new Task();
task.addPropertyChangeListener(this);
task.execute();
}
/**
* Invoked when task's progress property changes.
*/
public void propertyChange(PropertyChangeEvent evt) {
if ("progress" == evt.getPropertyName()) {
int progress = (Integer) evt.getNewValue();
progressBar.setValue(progress);
taskOutput.append(String.format("Completed %d%% of task.\n",
task.getProgress()));
}
}
/**
* Create the GUI and show it. As with all GUI code, this must run on the
* event-dispatching thread.
*/
private static void createAndShowGUI() {
// Create and set up the window.
JFrame frame = new JFrame("ProgressBarDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// Create and set up the content pane.
JComponent newContentPane = new ProgressBarDemo();
newContentPane.setOpaque(true); // content panes must be opaque
frame.setContentPane(newContentPane);
// Display the window.
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();
Credential gtw = new Credential();
gtw.setVisible(true);
}
});
}
}
I am getting both frames being displayed. But I am not getting the progressbar running when I press the login button.. Also I am not able to get the values of username and password fields into the powershell script.. My powershell code is given below stage1.ps1:
$username = $env:USER
$password = $env:PASS
$url = "https://www.jabong.com/customer/account/login/"
$ie = New-Object -com internetexplorer.application;
$ie.visible = $true;
$ie.navigate($url);
while ($ie.Busy -eq $true)
{
Start-Sleep 1;
}
$ie.Document.getElementById("LoginForm_email").value = $username
$ie.Document.getElementByID("LoginForm_password").value=$password
$ie.Document.getElementByID("qa-login-button").Click();
The web page is invoked when I click the login button.But I am not getting the values of credentials being passed in the swing window into it