Implementing back/forward buttons in Swing
Here's an example using CardLayout
.
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.util.Random;
import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
/** @see http://stackoverflow.com/questions/5654926 */
public class CardPanel extends JPanel {
private static final Random random = new Random();
private static final JPanel cards = new JPanel(new CardLayout());
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));
cards.add(p, p.toString());
}
JPanel control = new JPanel();
control.add(new JButton(new AbstractAction("\u22b2Prev") {
@Override
public void actionPerformed(ActionEvent e) {
CardLayout cl = (CardLayout) cards.getLayout();
cl.previous(cards);
}
}));
control.add(new JButton(new AbstractAction("Next\u22b3") {
@Override
public void actionPerformed(ActionEvent e) {
CardLayout cl = (CardLayout) cards.getLayout();
cl.next(cards);
}
}));
f.add(cards, BorderLayout.CENTER);
f.add(control, BorderLayout.SOUTH);
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
}
}
Implementing back/forward buttons in Swing
Here's an example using CardLayout
.
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.util.Random;
import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
/** @see http://stackoverflow.com/questions/5654926 */
public class CardPanel extends JPanel {
private static final Random random = new Random();
private static final JPanel cards = new JPanel(new CardLayout());
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));
cards.add(p, p.toString());
}
JPanel control = new JPanel();
control.add(new JButton(new AbstractAction("\u22b2Prev") {
@Override
public void actionPerformed(ActionEvent e) {
CardLayout cl = (CardLayout) cards.getLayout();
cl.previous(cards);
}
}));
control.add(new JButton(new AbstractAction("Next\u22b3") {
@Override
public void actionPerformed(ActionEvent e) {
CardLayout cl = (CardLayout) cards.getLayout();
cl.next(cards);
}
}));
f.add(cards, BorderLayout.CENTER);
f.add(control, BorderLayout.SOUTH);
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
}
}
How to program Back and Forward buttons in JavaFX with WebView and WebEngine?
I figured it out :
public String goBack()
{
final WebHistory history=eng.getHistory();
ObservableList<WebHistory.Entry> entryList=history.getEntries();
int currentIndex=history.getCurrentIndex();
// Out("currentIndex = "+currentIndex);
// Out(entryList.toString().replace("],","]\n"));
Platform.runLater(new Runnable() { public void run() { history.go(-1); } });
return entryList.get(currentIndex>0?currentIndex-1:currentIndex).getUrl();
}
public String goForward()
{
final WebHistory history=eng.getHistory();
ObservableList<WebHistory.Entry> entryList=history.getEntries();
int currentIndex=history.getCurrentIndex();
// Out("currentIndex = "+currentIndex);
// Out(entryList.toString().replace("],","]\n"));
Platform.runLater(new Runnable() { public void run() { history.go(1); } });
return entryList.get(currentIndex<entryList.size()-1?currentIndex+1:currentIndex).getUrl();
}
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