Witam
Wywołuje nowy widok za pomocą :
CardLayout cardLayout = (CardLayout) contentPane.getLayout();
cardLayout.show(contentPane,CARD2);
Coś zrobię w tym CARD2, zmienię tło z koloru czarnego na kolor czerwony.
I powiedzmy, że przełączę się na inny widok np. CARD1, a później znowu na ten CARD2.
Co zrobić aby po powrocie do CARD2 był znowu kolor czarny ?
Chodzi o to, aby nie zapisywał mi zmian.
Z góry dziękuję.
zamiana znacznika <code class="c"> na <code class="java"> - @furious programming
garai dzięki za odpowiedź. Pokażę o co mi dokładnie chodzi.
Klikam na daną markę, później na dany model. Jak kliknę znowu na te markę to mam wyświetlony konkretny model, a chciałbym wszystkie.
Java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Main extends JPanel implements ActionListener {
private static final String APPLE_CARD = "Home";
private static final String BLUE_PANEL = "Blue Panel";
private static final String RED_PANEL = "Red Panel";
private static final String ORANGE_PANEL = "Orange Panel";
private static final String CARD_JBUTTON = "Card JButton";
private JPanel cardHolder;
private JPanel panel;
private JButton homeButton = new JButton("NOKIA");
private JButton blueButton = new JButton("SONY");
private JButton redButton = new JButton("APPLE");
private JButton orangeButton = new JButton("SAMSUNG");
private JButton appleButton;
public JPanel createCardHolderPanel() {
cardHolder = new JPanel(new CardLayout());
cardHolder.setBorder(BorderFactory.createTitledBorder("Model"));
Model winn = new Model();
cardHolder.add(winn, CARD_JBUTTON);
cardHolder.add(ApplePanel(), APPLE_CARD);
cardHolder.add(createColorPanel(Color.blue), BLUE_PANEL);
cardHolder.add(createColorPanel(Color.red), RED_PANEL);
cardHolder.add(createColorPanel(Color.orange), ORANGE_PANEL);
cardHolder.setPreferredSize(new Dimension(100, 588));
return cardHolder;
}
private JPanel createColorPanel(Color color) {
JPanel panel2 = new JPanel();
panel2.setBackground(color);
return panel2;
}
private JPanel ApplePanel() {
panel = new JPanel((new CardLayout()));
Icon appleIcon = new ImageIcon(this.getClass().getResource(
"/img/apple.png"));
appleButton = new JButton(appleIcon);
appleButton.setBorderPainted(false);
appleButton.setContentAreaFilled(false);
panel.add(appleButton);
panel.setBackground(Color.BLACK);
return panel;
}
public JPanel createButtonPanel() {
JPanel buttonPanel = new JPanel(new GridLayout(0, 1, 22, 22));
buttonPanel.setPreferredSize(new Dimension(100, 588));
buttonPanel.setBorder(BorderFactory.createTitledBorder("Marka"));
Icon appleIcon = new ImageIcon(this.getClass().getResource(
"/img/apple.png"));
appleButton = new JButton(appleIcon);
appleButton.setBorderPainted(false);
appleButton.setContentAreaFilled(false);
homeButton.setPreferredSize(new Dimension(100, 60));
buttonPanel.add(orangeButton);
buttonPanel.add(homeButton);
buttonPanel.add(blueButton);
buttonPanel.add(redButton);
buttonPanel.add(appleButton);
homeButton.addActionListener(this);
blueButton.addActionListener(this);
redButton.addActionListener(this);
orangeButton.addActionListener(this);
appleButton.addActionListener(this);
return buttonPanel;
}
public JPanel createContentPane() {
JPanel panel = new JPanel(new BorderLayout());
panel.setBorder(BorderFactory.createTitledBorder("KATALOG GSM"));
panel.setBackground(Color.GRAY);
JScrollPane scrollPane = new JScrollPane(createButtonPanel(),
ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
scrollPane.setPreferredSize(new Dimension(150, 10));
panel.setPreferredSize(new Dimension(499, 668));
JScrollPane scrollPane2 = new JScrollPane(createCardHolderPanel(),
ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS,
ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
scrollPane2.setPreferredSize(new Dimension(400, 300));
panel.add(scrollPane, BorderLayout.WEST);
panel.add(scrollPane2, BorderLayout.CENTER);
return panel;
}
@Override
public void actionPerformed(ActionEvent e) {
CardLayout cardLayout = (CardLayout) (cardHolder.getLayout());
if (e.getSource() == homeButton) {
cardLayout.show(cardHolder, APPLE_CARD);
}
if (e.getSource() == blueButton) {
cardLayout.show(cardHolder, BLUE_PANEL);
}
if (e.getSource() == redButton) {
cardLayout.show(cardHolder, RED_PANEL);
}
if (e.getSource() == orangeButton) {
cardLayout.show(cardHolder, CARD_JBUTTON);
}
}
public static void createAndShowGUI() {
JFrame frame = new JFrame("Simple CardLayout Program");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Main main = new Main();
frame.add(main.createContentPane());
Toolkit kit = Toolkit.getDefaultToolkit();
Dimension screenSize = kit.getScreenSize();
int screenHeight = screenSize.height;
int screenWidth = screenSize.width;
frame.setSize(screenWidth / 2, screenHeight / 2);
frame.setLocation(screenWidth / 4, screenHeight / 5 + 100);
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
createAndShowGUI();
}
});
}
}
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.KeyEvent;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*; // Packages used in this program imported
public class Model extends JPanel implements ActionListener {
JPanel cards;
JPanel widok;
JButton button1, button2, button3;
public Model() {
init2();
}
private void init2() {
// The entry point into your program
setBackground(Color.BLUE);
setPreferredSize(new Dimension(440, 411));
button1 = new JButton("MODEL 1");
button2 = new JButton("MODEL 2");
button1.addActionListener(this);
button2.addActionListener(this);
// Create the cards
JPanel card1 = new JPanel();
card1.setMinimumSize(new Dimension(400, 411));
card1.setBackground(Color.CYAN);
card1.add(button1);
card1.add(button2);
JPanel card2 = new JPanel();
JLabel label2 = new JLabel("Opis danego modelu 11111111");
card2.setPreferredSize((new Dimension(400, 331)));
card2.add(label2);
card2.setBackground(Color.WHITE);
JPanel card3 = new JPanel();
JLabel label3 = new JLabel("Opis danego modelu 2222222");
card3.setPreferredSize((new Dimension(400, 331)));
card3.add(label3);
card3.setBackground(Color.WHITE);
// Create the panel that contains the "cards".
cards = new JPanel(new CardLayout());
cards.add(card1, "Card 1");
cards.add(card2, "Card 2");
cards.add(card3, "Card 3");
this.add(cards);
setVisible(true); // Make JFrame visible
}
public void actionPerformed(ActionEvent e) {
if (e.getSource() == button1) {
CardLayout cardLayout = (CardLayout) cards.getLayout();
// cardLayout.previous(cards);
cardLayout.show(cards, "Card 2");
// What do i put here to change to Panel card2 or card3 and so on.
}
if (e.getSource() == button2) {
CardLayout cardLayout = (CardLayout) cards.getLayout();
// cardLayout.previous(cards);
cardLayout.show(cards, "Card 3");
// What do i put here to change to Panel card2 or card3 and so on.
}
}
}
"trochę" tu namieszałeś...
private Model winn;
winn = new Model();
public void restoreDefaultSettings(){
CardLayout cardLayout = (CardLayout) cards.getLayout();
cardLayout.show(cards, "Card 1");
}
if (e.getSource() == orangeButton) {
winn.restoreDefaultsettings();
cardLayout.show(cardHolder, CARD_JBUTTON);
}