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Java Tutorial/Swing/ButtonModel - История изменений
2026-04-22T08:19:39Z
История изменений этой страницы в вики
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http://www.jexp.ru/index.php?title=Java_Tutorial/Swing/ButtonModel&diff=3835&oldid=prev
в 17:44, 31 мая 2010
2010-05-31T17:44:27Z
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<td colspan="1" style="background-color: white; color:black; text-align: center;">Версия 17:44, 31 мая 2010</td>
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http://www.jexp.ru/index.php?title=Java_Tutorial/Swing/ButtonModel&diff=3836&oldid=prev
Admin: 1 версия
2010-05-31T15:31:46Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>== Add change listener to Button model ==<br />
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<!-- start source code --><br />
<br />
<source lang="java"><br />
import java.awt.BorderLayout;<br />
import java.awt.event.WindowAdapter;<br />
import java.awt.event.WindowEvent;<br />
import javax.swing.ButtonModel;<br />
import javax.swing.JButton;<br />
import javax.swing.JFrame;<br />
import javax.swing.event.ChangeEvent;<br />
import javax.swing.event.ChangeListener;<br />
public class Main extends JFrame {<br />
JButton b = new JButton("Test");<br />
ButtonModel model = b.getModel();<br />
public Main() {<br />
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);<br />
model.addChangeListener(new ChangeListener() {<br />
public void stateChanged(ChangeEvent e) {<br />
System.out.println("Armed: " + model.isArmed() + " Enabled: "<br />
+ model.isEnabled() + " Pressed: " + model.isPressed());<br />
}<br />
});<br />
getContentPane().add(b, BorderLayout.CENTER);<br />
pack();<br />
setVisible(true);<br />
}<br />
public static void main(String arg[]) {<br />
new Main();<br />
}<br />
}</source><br />
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<!-- end source code --><br />
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== A default button model ==<br />
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<!-- start source code --><br />
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<source lang="java"><br />
import java.awt.FlowLayout;<br />
import java.awt.event.ActionEvent;<br />
import java.awt.event.ActionListener;<br />
import javax.swing.ButtonModel;<br />
import javax.swing.DefaultButtonModel;<br />
import javax.swing.JButton;<br />
import javax.swing.JCheckBox;<br />
import javax.swing.JFrame;<br />
public class Main {<br />
public static void main(String[] args) {<br />
final JButton ok = new JButton("ok");<br />
JCheckBox cb = new JCheckBox("Enabled", true);<br />
cb.addActionListener(new ActionListener() {<br />
public void actionPerformed(ActionEvent e) {<br />
if (ok.isEnabled())<br />
ok.setEnabled(false);<br />
else<br />
ok.setEnabled(true);<br />
}<br />
});<br />
ButtonModel model = new DefaultButtonModel() {<br />
public void setEnabled(boolean b) {<br />
if (b)<br />
System.out.println("Pressed: true");<br />
else<br />
System.out.println("Pressed: false");<br />
super.setEnabled(b);<br />
}<br />
public void setArmed(boolean b) {<br />
if (b)<br />
System.out.println("Armed: true");<br />
else<br />
System.out.println("Armed: false");<br />
super.setArmed(b);<br />
}<br />
public void setPressed(boolean b) {<br />
if (b)<br />
System.out.println("Pressed: true");<br />
else<br />
System.out.println("Pressed: false");<br />
super.setPressed(b);<br />
}<br />
};<br />
ok.setModel(model);<br />
JFrame f = new JFrame();<br />
f.setLayout(new FlowLayout());<br />
f.add(ok);<br />
f.add(cb);<br />
f.setSize(350, 250);<br />
f.setLocationRelativeTo(null);<br />
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);<br />
f.setVisible(true);<br />
}<br />
}</source><br />
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<!-- end source code --><br />
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== Model for a JButton: manage only the state of the button ==<br />
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<!-- start source code --><br />
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<source lang="java"><br />
import java.awt.FlowLayout;<br />
import java.awt.event.ActionEvent;<br />
import java.awt.event.ActionListener;<br />
import javax.swing.DefaultButtonModel;<br />
import javax.swing.JButton;<br />
import javax.swing.JCheckBox;<br />
import javax.swing.JFrame;<br />
import javax.swing.event.ChangeEvent;<br />
import javax.swing.event.ChangeListener;<br />
public class ButtonModel {<br />
public static void main(String[] args) {<br />
final JButton ok = new JButton("ok");<br />
JCheckBox cb = new JCheckBox("Enabled", true);<br />
ok.setBounds(40, 30, 80, 25);<br />
ok.addChangeListener(new ChangeListener() {<br />
public void stateChanged(ChangeEvent e) {<br />
DefaultButtonModel model = (DefaultButtonModel) ok.getModel();<br />
if (model.isEnabled())<br />
System.out.println("Enabled: true");<br />
else<br />
System.out.println("Enabled: false");<br />
if (model.isArmed())<br />
System.out.println("Armed: true");<br />
else<br />
System.out.println("Armed: false");<br />
if (model.isPressed())<br />
System.out.println("Pressed: true");<br />
else<br />
System.out.println("Pressed: false");<br />
}<br />
});<br />
cb.addActionListener(new ActionListener() {<br />
public void actionPerformed(ActionEvent e) {<br />
if (ok.isEnabled())<br />
ok.setEnabled(false);<br />
else<br />
ok.setEnabled(true);<br />
}<br />
});<br />
JFrame f = new JFrame();<br />
f.setLayout(new FlowLayout());<br />
f.add(ok);<br />
f.add(cb);<br />
f.setSize(350, 250);<br />
f.setLocationRelativeTo(null);<br />
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);<br />
f.setVisible(true);<br />
}<br />
}</source><br />
<br />
<br />
<!-- end source code --></div>
Admin