My program will allow the user to log in first and if he is logged in,
he will click on labelone first and labeltwo next.
the program will print ("last two cards detected. starting new game..") and allow the user to click on the two labels again.
the problem I am facing is after my panel has been repainted. I cannot click on the labels
anymore.
I know that my codes provided it too lengthy but I have already attempted to tried to cut down my codes from my actual program.
I think the main focus is this block of codes in my controller class.
labelPanel.removeAll();
Dealer dealer = new Dealer();
labelPanel.add(new LabelPanel(dealer));
labelPanel.revalidate();
labelPanel.repaint();
new Controller(labelPanel,dealer);
I am not sure what happened to my mouselistener. please help
This is are the class. feel free to run it if you guys couldn't understand.
login as username-> john password -> abc
click on label one first, after that click on label two. the console will display
"last 2 cards detected, starting new game.."
after that try clicking the labels again(by right it should be clickable but it's not)
LoginPanel.java
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.border.EtchedBorder;
import javax.swing.border.TitledBorder;
#SuppressWarnings("serial")
public class LoginPanel extends JPanel {
private JPanel northPanel = new JPanel(new BorderLayout());
private JPanel southPanel = new JPanel(new BorderLayout());
private JPanel subSouthPanel = new JPanel(new GridBagLayout());
private JPanel subSouthPanelTwo = new JPanel(new FlowLayout());
private GridBagConstraints gbc2 = new GridBagConstraints();
private JTextField playerUsernameTF = new JTextField(15);
private JPasswordField playerPasswordTF = new JPasswordField(15);
private JButton playerLoginBtn = new JButton("Login");
public LoginPanel() {
setLayout(new BorderLayout());
gbc2.gridx = 0;
gbc2.gridy = 0;
subSouthPanel.add(new JLabel("Username"),gbc2);
gbc2.gridx = 1;
gbc2.gridy = 0;
subSouthPanel.add(playerUsernameTF,gbc2);
gbc2.gridx = 0;
gbc2.gridy = 1;
subSouthPanel.add(new JLabel("Password"),gbc2);
gbc2.gridx = 1;
gbc2.gridy = 1;
subSouthPanel.add(playerPasswordTF,gbc2);
southPanel.add(subSouthPanel,BorderLayout.CENTER);
subSouthPanelTwo.add(playerLoginBtn);
southPanel.add(subSouthPanelTwo,BorderLayout.SOUTH);
add(northPanel,BorderLayout.NORTH);
add(southPanel,BorderLayout.SOUTH);
}
public JTextField getPlayerUsernameTF() {
return playerUsernameTF;
}
public JPasswordField getPlayerPasswordTF() {
return playerPasswordTF;
}
void addListenerForPlayerLoginBtn(ActionListener actionListener) {
playerLoginBtn.addActionListener(actionListener);
}
}
LabelPanel.java
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.event.MouseListener;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JPanel;
#SuppressWarnings("serial")
public class LabelPanel extends JPanel {
private JPanel panel = new JPanel(new FlowLayout());
private JLabel labelOne;
private JLabel labelTwo;
public LabelPanel(Dealer dealer) {
setLayout(new BorderLayout());
labelOne = new JLabel(new ImageIcon(dealer.hideCard()));
labelTwo = new JLabel(new ImageIcon(dealer.hideCard()));
panel.add(labelOne);
panel.add(labelTwo);
add(panel);
}
public JLabel getJLabelOne() {
return labelOne;
}
public JLabel getJLabelTwo() {
return labelTwo;
}
void listenerForJLabelOne(MouseListener listenForMouseClick) {
labelOne.addMouseListener(listenForMouseClick);
}
void listenerForJLabelTwo(MouseListener listenForMouseClick) {
labelTwo.addMouseListener(listenForMouseClick);
}
}
Dealer.java
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
public class Dealer {
public Dealer() {
}
public Image hideCard() {
BufferedImage img = null;
try {
img = ImageIO.read(new File("resources/images/blank.png"));
} catch (Exception e) {
}
return img;
}
public Image displayFirsCard() {
BufferedImage img = null;
try {
img = ImageIO.read(new File("resources/images/ClubsAce.png"));
} catch (Exception e) {
}
return img;
}
public Image displaySecondCard() {
BufferedImage img = null;
try {
img = ImageIO.read(new File("resources/images/ClubsAce.png"));
} catch (Exception e) {
}
return img;
}
}
Controller.java
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.Timer;
public class Controller {
private LabelPanel labelPanel;
private Dealer dealer;
private int countdown = 1;
private Timer timer = new Timer(1000,null);
private MouseHandler mouseHandler = new MouseHandler();
private int clicked = 0;
public Controller(LabelPanel labelPanel,Dealer dealer) {
clicked = 0;
this.labelPanel = labelPanel;
this.dealer = dealer;
this.labelPanel.listenerForJLabelOne(mouseHandler);
this.labelPanel.listenerForJLabelTwo(mouseHandler);
this.labelPanel.getJLabelOne().setText("Ace");
this.labelPanel.getJLabelTwo().setText("Ace");
}
private class MouseHandler extends MouseAdapter {
public void mousePressed(MouseEvent e) {
JLabel label = (JLabel) e.getSource();
clicked++;
if(clicked == 1) {
labelPanel.getJLabelOne().setIcon((new ImageIcon(dealer.displayFirsCard())));
}
if(clicked == 2) {
labelPanel.getJLabelTwo().setIcon((new ImageIcon(dealer.displaySecondCard())));;
if(label.getText().equals(label.getText())) {
System.out.println("last 2 cards detected, starting new game..");
timer = new Timer(1000,new newGameTimer());
timer.start();
}
}
}
}
private class newGameTimer implements ActionListener {
#Override
public void actionPerformed(ActionEvent e) {
if(countdown == 0) {
timer.stop();
clicked = 0;
labelPanel.removeAll();
Dealer dealer = new Dealer();
labelPanel.add(new LabelPanel(dealer));
labelPanel.revalidate();
labelPanel.repaint();
new Controller(labelPanel,dealer);
}
else {
countdown--;
}
}
}
}
MainFrame.java
import java.awt.CardLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
public class MainFrame {
private CardLayout cardLayout = new CardLayout();
private Dealer dealer = new Dealer();
private JPanel cardLayoutPanel = new JPanel();
private LoginPanel loginPanel = new LoginPanel();
private JFrame frame = new JFrame("Mouse CLick Test");
private JPanel dialogPanel = new JPanel();
private LabelPanel labelPanel = new LabelPanel(dealer);
public MainFrame() {
cardLayoutPanel.setLayout(cardLayout);
cardLayoutPanel.add(loginPanel,"1");
cardLayout.show(cardLayoutPanel,"1");
cardLayoutPanel.add(labelPanel,"2");
frame.add(cardLayoutPanel);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.pack();
frame.setSize(1024,768);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
frame.setResizable(false);
loginPanel.addListenerForPlayerLoginBtn(new PlayerLoginBtnActionPerformed());
}
public class PlayerLoginBtnActionPerformed implements ActionListener {
#Override
public void actionPerformed(ActionEvent e) {
String playerUsername = loginPanel.getPlayerUsernameTF().getText();
String playerPassword = new String(loginPanel.getPlayerPasswordTF().getPassword());
if(playerUsername.equals("john") && playerPassword.equals("abc")) {
JOptionPane.showMessageDialog(dialogPanel,
"Login Successfully!"
,"Player Login",JOptionPane.PLAIN_MESSAGE);
cardLayout.show(cardLayoutPanel,"2");
new Controller(labelPanel,dealer);
}
else {
JOptionPane.showMessageDialog(dialogPanel,
"Wrong Password or Username!"
,"Error",JOptionPane.ERROR_MESSAGE);
}
}
}
public static void main(String[]args) {
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
new MainFrame();
}
});
}
}
The problem is, you are adding a LabelPanel to a LabelPanel
labelPanel.add(new LabelPanel(dealer));
But you are passing the outer panel to the controller
new Controller(labelPanel, dealer);
The outer panel no longer actually contains any labels, but only contains the new LabelPanel...
A better solution would be to provide the LabelPanel with a "reset" option of some kind instead...
Related
Whats wrong with my code? When I want to change colors through the radioButton it won't change color. The if statements I have put makes sense to me, but they don't register the the background to change color to the setbackground method.
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ButtonGroup;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.event.ChangeListener;
public class GetTheColors extends JFrame
{
private static final int FRAME_WIDTH = 300;
private static final int FRAME_HEIGTH = 400;
JLabel label;
JPanel colorPanel;
JFrame frame;
JRadioButton redButton;
JRadioButton blueButton;
JRadioButton greenButton;
ActionListener listen;
public GetTheColors()
{
colorPanel = new JPanel();
add(colorPanel, BorderLayout.CENTER);
RadioButtons();
setColor();
setSize(FRAME_WIDTH,FRAME_HEIGTH);
}
class ChoiceListener implements ActionListener
{
public void actionPerformed(ActionEvent event)
{
setColor();
}
}
public JPanel RadioButtons()
{
redButton = new JRadioButton("red");
redButton.addActionListener(listen);
redButton.setSelected(true);
greenButton = new JRadioButton("green");
greenButton.addActionListener(listen);
blueButton = new JRadioButton("blue");
blueButton.addActionListener(listen);
ButtonGroup group = new ButtonGroup();
group.add(redButton);
group.add(greenButton);
group.add(blueButton);
JPanel buttonPanel = new JPanel();
buttonPanel.add(redButton);
buttonPanel.add(greenButton);
buttonPanel.add(blueButton);
add(buttonPanel, BorderLayout.NORTH);
return buttonPanel;
}
/**
*
*/
public void setColor()
{
if (redButton.isSelected())
{
colorPanel.setBackground(Color.red);
colorPanel.repaint();
}
else if (blueButton.isSelected())
{
colorPanel.setBackground(Color.blue);
colorPanel.repaint();
}
else if (greenButton.isSelected())
{
colorPanel.setBackground(Color.green);
colorPanel.repaint();
}
}
}
You need to initialize the ActionListener :
ActionListener listen = new ChoiceListener();
This code enables an employee to log in to the coffee shop system. I admit I have a lot of unneeded code. My problem is that when I run the program just the image is displayed above and no JButtons, JLabels or JTextFields.
Thanks in advance.
import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.ImageIcon;
import java.awt.FlowLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Graphics;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
import java.awt.image.BufferedImage;
import java.net.URL;
import javax.imageio.ImageIO;
public class login extends JFrame {
public void CreateFrame() {
JFrame frame = new JFrame("Welcome");
JPanel panel = new JPanel();
panel.setOpaque(true);
panel.setBackground(Color.WHITE);
panel.setLayout(new BorderLayout(1000,1000));
panel.setLayout(new FlowLayout());
getContentPane().add(panel);
ImagePanel imagePanel = new ImagePanel();
imagePanel.show();
panel.add(imagePanel, BorderLayout.CENTER);
frame.setContentPane(panel);
frame.pack();
frame.setLocationByPlatform(true);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);
frame.add(panel);
}
public static void main(String... args) {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
new login().CreateFrame();
}
});
}
}
class GUI extends JFrame{
private JButton buttonLogin;
private JButton buttonNewUser;
private JLabel iUsername;
private JLabel iPassword;
private JTextField userField;
private JPasswordField passField;
public void createGUI(){
setLayout(new GridBagLayout());
JPanel loginPanel = new JPanel();
loginPanel.setOpaque(false);
loginPanel.setLayout(new GridLayout(3,3,3,3));
iUsername = new JLabel("Username ");
iUsername.setForeground(Color.BLACK);
userField = new JTextField(10);
iPassword = new JLabel("Password ");
iPassword.setForeground(Color.BLACK);
passField = new JPasswordField(10);
buttonLogin = new JButton("Login");
buttonNewUser = new JButton("New User");
loginPanel.add(iUsername);
loginPanel.add(iPassword);
loginPanel.add(userField);
loginPanel.add(passField);
loginPanel.add(buttonLogin);
loginPanel.add(buttonNewUser);
add(loginPanel);
pack();
Writer writer = null;
File check = new File("userPass.txt");
if(check.exists()){
//Checks if the file exists. will not add anything if the file does exist.
}else{
try{
File texting = new File("userPass.txt");
writer = new BufferedWriter(new FileWriter(texting));
writer.write("message");
}catch(IOException e){
e.printStackTrace();
}
}
buttonLogin.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
try {
File file = new File("userPass.txt");
Scanner scan = new Scanner(file);;
String line = null;
FileWriter filewrite = new FileWriter(file, true);
String usertxt = " ";
String passtxt = " ";
String puname = userField.getText();
String ppaswd = passField.getText();
while (scan.hasNext()) {
usertxt = scan.nextLine();
passtxt = scan.nextLine();
}
if(puname.equals(usertxt) && ppaswd.equals(passtxt)) {
MainMenu menu = new MainMenu();
dispose();
}
else if(puname.equals("") && ppaswd.equals("")){
JOptionPane.showMessageDialog(null,"Please insert Username and Password");
}
else {
JOptionPane.showMessageDialog(null,"Wrong Username / Password");
userField.setText("");
passField.setText("");
userField.requestFocus();
}
} catch (IOException d) {
d.printStackTrace();
}
}
});
buttonNewUser.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e) {
NewUser user = new NewUser();
dispose();
}
});
}
}
class ImagePanel extends JPanel{
private BufferedImage image;
public ImagePanel(){
setOpaque(true);
setBorder(BorderFactory.createLineBorder(Color.BLACK,5));
try
{
image = ImageIO.read(new URL("https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcQ8F5S_KK7uelpM5qdQXuaL1r09SS484R3-gLYArOp7Bom-LTYTT8Kjaiw"));
}
catch(Exception e)
{
e.printStackTrace();
}
GUI show = new GUI();
show.createGUI();
}
#Override
public Dimension getPreferredSize(){
return (new Dimension(430, 300));
}
public void paintComponent(Graphics g){
super.paintComponent(g);
g.drawImage(image,0,0,this);
}
}
Seems to me like you have a class login (which is a JFrame, but never used as one). This login class creates a new generic "Welcome" JFrame with the ImagePanel in it. The ImagePanel calls GUI.createGUI() (which creates another JFrame, but doesn't show it) and then does absolutely nothing with it, thus it is immediately lost.
There are way to many JFrames in your code. One should be enough, perhaps two. But you got three: login, gui, and a simple new JFrame().
Right now all I have is created the black background and uploaded my image I wanted. I want to make it so the image is behind a transparent background. I initially had this all in separate class files but put them all in one main class
package Flashlight;
import java.awt.Color;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
public class Flashlight3 extends JFrame {
public class FlashLabelChange extends JPanel {
Flashlight.FlashDisp flashDisp;
public FlashLabelChange(Flashlight.FlashDisp _flashDisp) {
flashDisp = _flashDisp;
JButton btn1 = new JButton("Start");
add(btn1);
class Button implements ActionListener {
public void actionPerformed(ActionEvent event) {
if (event.getActionCommand().equals("Start")) {
flashDisp.UpdateLabel("Start");
}
}
}
ActionListener button = new Button();
btn1.addActionListener(button);
}
}
public class FlashDisp extends JPanel {
private JLabel lblName;
private String sLabel;
private JLabel lblImage;
public FlashDisp() {
lblImage = new JLabel();
add(lblImage);
lblName = new JLabel("Start?");
add(lblName); //add it to the Frame
}
void UpdateLabel(String _sNew) {
sLabel = _sNew;
lblName.setText(sLabel);
}
void UpdateBackground(String _sNew) {
sLabel = _sNew;
if (sLabel == ("Black")) {
setBackground(Color.black);
lblImage.setIcon(new ImageIcon("Hallway.png"));
}
}
}
public class FlashColour extends JPanel {
FlashDisp flashDisp;
public FlashColour(FlashDisp _flashDisp) {
flashDisp = _flashDisp;
setLayout(new GridLayout(3, 1));
JButton btnDark = new JButton("Dark");
add(btnDark);
class ColourChangeListener implements ActionListener {
public void actionPerformed(ActionEvent event) {
if (event.getActionCommand().equals("Dark")) {
flashDisp.UpdateBackground("Black");
}
}
}
ActionListener colourChangeListener = new ColourChangeListener();
btnDark.addActionListener(colourChangeListener);
}
}
public static void main(String[] args) {
JFrame frame = new JFrame();
FlashMain flashMain = new FlashMain();
frame.setSize(400, 400);
frame.setTitle("FLAAAASH LIGHT");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(flashMain);
frame.setVisible(true);
}
}
I think that you need to use the opaque method.
Have a look here
setOpaque(true/false); Java for using opaque.
Hope that helps.
I have a problem with my JLayeredPane, I am probably doing something incredibly simple but I cannot wrap my head around it. The problem i have is that all the components are merged together and have not order. Could you please rectify this as I have no idea. The order I am trying to do is have a layout like this
output
label1 (behind)
input (in Front)
import java.awt.BorderLayout;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.io.IOException;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextArea;
import javax.swing.JTextField;
public class window extends JFrame implements KeyListener {
/**
*
*/
private static final long serialVersionUID = 7092006413113558324L;
private static int NewSize;
public static String MainInput;
public static JLabel label1 = new JLabel();
public static JTextField input = new JTextField(10);
public static JTextArea output = new JTextArea(main.Winx, NewSize);
public window() {
super("Satine. /InDev-01/");
JLabel label1;
NewSize = main.Winy - 20;
setLayout(new BorderLayout());
output.setToolTipText("");
add(input, BorderLayout.PAGE_END);
add(output, BorderLayout.CENTER);
input.addKeyListener(this);
input.requestFocus();
ImageIcon icon = new ImageIcon("C:\\Users\\" + System.getProperty("user.name") + "\\AppData\\Roaming\\.Satine\\img\\textbox.png", "This is the desc");
label1 = new JLabel(icon);
add(label1, BorderLayout.PAGE_END);
}
public void keyPressed(KeyEvent e) {
int key = e.getKeyCode();
if (key == KeyEvent.VK_ENTER) {
try {
MainMenu.start();
} catch (IOException e1) {
System.out.print(e1.getCause());
}
}
}
#Override
public void keyReleased(KeyEvent e) {
}
#Override
public void keyTyped(KeyEvent e) {
}
}
And the main class.
import java.awt.Container;
import java.io.IOException;
import javax.swing.JFrame;
import javax.swing.JLayeredPane;
public class main {
public static int Winx, Winy;
private static JLayeredPane lpane = new JLayeredPane();
public static void main(String[] args) throws IOException{
Winx = window.WIDTH;
Winy = window.HEIGHT;
window Mth= new window();
Mth.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Mth.setSize(1280,720);
Mth.setVisible(true);
lpane.add(window.label1);
lpane.add(window.input);
lpane.add(window.output);
lpane.setLayer(window.label1, 2, -1);
lpane.setLayer(window.input, 1, 0);
lpane.setLayer(window.output, 3, 0);
Mth.pack();
}
}
Thank you for your time and I don't expect the code to be written for me, all I want is tips on where I am going wrong.
I recommend that you not use JLayeredPane as the overall layout of your GUI. Use BoxLayout or BorderLayout, and then use the JLayeredPane only where you need layering. Also, when adding components to the JLayeredPane, use the add method that takes a Component and an Integer. Don't call add(...) and then setLayer(...).
Edit: it's ok to use setLayer(...) as you're doing. I've never used this before, but per the API, it's one way to set the layer.
e.g.,
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridBagLayout;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import javax.imageio.ImageIO;
import javax.swing.*;
public class LayeredPaneFun extends JPanel {
public static final String IMAGE_PATH = "http://duke.kenai.com/" +
"misc/Bullfight.jpg";
public LayeredPaneFun() {
try {
BufferedImage img = ImageIO.read(new URL(IMAGE_PATH));
ImageIcon icon = new ImageIcon(img);
JLabel backgrndLabel = new JLabel(icon);
backgrndLabel.setSize(backgrndLabel.getPreferredSize());
JPanel forgroundPanel = new JPanel(new GridBagLayout());
forgroundPanel.setOpaque(false);
JLabel fooLabel = new JLabel("Foo");
fooLabel.setFont(fooLabel.getFont().deriveFont(Font.BOLD, 32));
fooLabel.setForeground(Color.cyan);
forgroundPanel.add(fooLabel);
forgroundPanel.add(Box.createRigidArea(new Dimension(50, 50)));
forgroundPanel.add(new JButton("bar"));
forgroundPanel.add(Box.createRigidArea(new Dimension(50, 50)));
forgroundPanel.add(new JTextField(10));
forgroundPanel.setSize(backgrndLabel.getPreferredSize());
JLayeredPane layeredPane = new JLayeredPane();
layeredPane.setPreferredSize(backgrndLabel.getPreferredSize());
layeredPane.add(backgrndLabel, JLayeredPane.DEFAULT_LAYER);
layeredPane.add(forgroundPanel, JLayeredPane.PALETTE_LAYER);
setLayout(new BoxLayout(this, BoxLayout.PAGE_AXIS));
add(new JScrollPane(new JTextArea("Output", 10, 40)));
add(layeredPane);
} catch (MalformedURLException e) {
e.printStackTrace();
System.exit(1);
} catch (IOException e) {
e.printStackTrace();
System.exit(1);
}
}
private static void createAndShowGui() {
JFrame frame = new JFrame("LayeredPaneFun");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(new LayeredPaneFun());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGui();
}
});
}
}
In dialog I need to display one group of controls if some combo is checked and another group of controls otherwise.
I.e. I need 2 layers and I need to switch between them when combo is checked/unchecked. How can I do that?
Thanks
CardLayout works well for this, as suggested below.
import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Random;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
/** #see http://stackoverflow.com/questions/6432170 */
public class CardPanel extends JPanel {
private static final Random random = new Random();
private static final JPanel cards = new JPanel(new CardLayout());
private static final JComboBox combo = new JComboBox();
private final String name;
public CardPanel(String name) {
this.name = name;
this.setPreferredSize(new Dimension(320, 240));
this.setBackground(new Color(random.nextInt()));
this.add(new JLabel(name));
}
#Override
public String toString() {
return name;
}
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
create();
}
});
}
private static void create() {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
for (int i = 1; i < 9; i++) {
CardPanel p = new CardPanel("Panel " + String.valueOf(i));
combo.addItem(p);
cards.add(p, p.toString());
}
JPanel control = new JPanel();
combo.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
JComboBox jcb = (JComboBox) e.getSource();
CardLayout cl = (CardLayout) cards.getLayout();
cl.show(cards, jcb.getSelectedItem().toString());
}
});
control.add(combo);
f.add(cards, BorderLayout.CENTER);
f.add(control, BorderLayout.SOUTH);
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
}
}