в 17:43, 31 мая 2010

2010-05-31T17:43:48Z

Admin: 1 версия

2010-05-31T14:18:37Z

1 версия

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== ButtonModel: getActionCommand() ==



<source lang="java">
import java.awt.Container;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import javax.swing.AbstractButton;
import javax.swing.ButtonGroup;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JRadioButton;
public class MainClass {
public static void main(String[] args) {
JRadioButton dem = new JRadioButton("Bill", false);
dem.setActionCommand("Bill");
JRadioButton rep = new JRadioButton("Bob", false);
rep.setActionCommand("Bob");
JRadioButton ind = new JRadioButton("Ross", false);
ind.setActionCommand("Ross");
final ButtonGroup group = new ButtonGroup();
group.add(dem);
group.add(rep);
group.add(ind);
class VoteActionListener implements ActionListener {
public void actionPerformed(ActionEvent ex) {
String choice = group.getSelection().getActionCommand();
System.out.println("ACTION Candidate Selected: " + choice);
}
}
class VoteItemListener implements ItemListener {
public void itemStateChanged(ItemEvent ex) {
String item = ((AbstractButton) ex.getItemSelectable()).getActionCommand();
boolean selected = (ex.getStateChange() == ItemEvent.SELECTED);
System.out.println("ITEM Candidate Selected: " + selected + " Selection: " + item);
}
}
ActionListener al = new VoteActionListener();
dem.addActionListener(al);
rep.addActionListener(al);
ind.addActionListener(al);
ItemListener il = new VoteItemListener();
dem.addItemListener(il);
rep.addItemListener(il);
ind.addItemListener(il);
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container c = frame.getContentPane();
c.setLayout(new GridLayout(4, 1));
c.add(new JLabel("Please Cast Your Vote"));
c.add(dem);
c.add(rep);
c.add(ind);
frame.pack();
frame.setVisible(true);
}
}

</source>



== ButtonModel: isArmed() ==



<source lang="java">

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.KeyEvent;
import javax.swing.AbstractButton;
import javax.swing.ButtonModel;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class MainClass {
public static void main(String[] a) {
final String DESELECTED_LABEL = "Deselected";
final String SELECTED_LABEL = "Selected";

JFrame frame = new JFrame("Selecting CheckBox");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JCheckBox checkBox = new JCheckBox(DESELECTED_LABEL);
ActionListener actionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
AbstractButton abstractButton = (AbstractButton) actionEvent
.getSource();
boolean selected = abstractButton.getModel().isSelected();
String newLabel = (selected ? SELECTED_LABEL : DESELECTED_LABEL);
abstractButton.setText(newLabel);
}
};
ChangeListener changeListener = new ChangeListener() {
public void stateChanged(ChangeEvent changeEvent) {
AbstractButton abstractButton = (AbstractButton) changeEvent
.getSource();
ButtonModel buttonModel = abstractButton.getModel();
boolean armed = buttonModel.isArmed();
boolean pressed = buttonModel.isPressed();
boolean selected = buttonModel.isSelected();
System.out.println("Changed: " + armed + "/" + pressed + "/" + selected);
}
};
ItemListener itemListener = new ItemListener() {
public void itemStateChanged(ItemEvent itemEvent) {
AbstractButton abstractButton = (AbstractButton) itemEvent.getSource();
Color foreground = abstractButton.getForeground();
Color background = abstractButton.getBackground();
int state = itemEvent.getStateChange();
if (state == ItemEvent.SELECTED) {
abstractButton.setForeground(background);
abstractButton.setBackground(foreground);
}
}
};
checkBox.addActionListener(actionListener);
checkBox.addChangeListener(changeListener);
checkBox.addItemListener(itemListener);
checkBox.setMnemonic(KeyEvent.VK_S);
frame.add(checkBox, BorderLayout.NORTH);
frame.setSize(300, 100);
frame.setVisible(true);
}
}

</source>



== ButtonModel: isPressed() ==



<source lang="java">
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.KeyEvent;
import javax.swing.AbstractButton;
import javax.swing.ButtonModel;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class MainClass {
public static void main(String[] a) {
final String DESELECTED_LABEL = "Deselected";
final String SELECTED_LABEL = "Selected";

JFrame frame = new JFrame("Selecting CheckBox");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JCheckBox checkBox = new JCheckBox(DESELECTED_LABEL);
ActionListener actionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
AbstractButton abstractButton = (AbstractButton) actionEvent
.getSource();
boolean selected = abstractButton.getModel().isSelected();
String newLabel = (selected ? SELECTED_LABEL : DESELECTED_LABEL);
abstractButton.setText(newLabel);
}
};
ChangeListener changeListener = new ChangeListener() {
public void stateChanged(ChangeEvent changeEvent) {
AbstractButton abstractButton = (AbstractButton) changeEvent
.getSource();
ButtonModel buttonModel = abstractButton.getModel();
boolean armed = buttonModel.isArmed();
boolean pressed = buttonModel.isPressed();
boolean selected = buttonModel.isSelected();
System.out.println("Changed: " + armed + "/" + pressed + "/" + selected);
}
};
ItemListener itemListener = new ItemListener() {
public void itemStateChanged(ItemEvent itemEvent) {
AbstractButton abstractButton = (AbstractButton) itemEvent.getSource();
Color foreground = abstractButton.getForeground();
Color background = abstractButton.getBackground();
int state = itemEvent.getStateChange();
if (state == ItemEvent.SELECTED) {
abstractButton.setForeground(background);
abstractButton.setBackground(foreground);
}
}
};
checkBox.addActionListener(actionListener);
checkBox.addChangeListener(changeListener);
checkBox.addItemListener(itemListener);
checkBox.setMnemonic(KeyEvent.VK_S);
frame.add(checkBox, BorderLayout.NORTH);
frame.setSize(300, 100);
frame.setVisible(true);
}
}

</source>



== ButtonModel: isSelected() ==



<source lang="java">
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import javax.swing.AbstractButton;
import javax.swing.ButtonModel;
import javax.swing.JFrame;
import javax.swing.JToggleButton;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class MainClass {
public static void main(String[] a) {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JToggleButton toggleButton = new JToggleButton("Selected");
ActionListener actionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
AbstractButton abstractButton = (AbstractButton) actionEvent.getSource();
boolean selected = abstractButton.getModel().isSelected();
System.out.println("Action - selected=" + selected + "\n");
}
};
ChangeListener changeListener = new ChangeListener() {
public void stateChanged(ChangeEvent changeEvent) {
AbstractButton abstractButton = (AbstractButton) changeEvent.getSource();
ButtonModel buttonModel = abstractButton.getModel();
boolean armed = buttonModel.isArmed();
boolean pressed = buttonModel.isPressed();
boolean selected = buttonModel.isSelected();
System.out.println("Changed: " + armed + "/" + pressed + "/" + selected);
}
};

ItemListener itemListener = new ItemListener() {
public void itemStateChanged(ItemEvent itemEvent) {
int state = itemEvent.getStateChange();
if (state == ItemEvent.SELECTED) {
System.out.println("Selected");
} else {
System.out.println("Deselected");
}
}
};
toggleButton.addActionListener(actionListener);
toggleButton.addChangeListener(changeListener);
toggleButton.addItemListener(itemListener);
frame.add(toggleButton, BorderLayout.NORTH);
JToggleButton toggleButton2 = new JToggleButton("Focused");
frame.add(toggleButton2, BorderLayout.CENTER);
JToggleButton toggleButton3 = new JToggleButton("Not Selected");
frame.add(toggleButton3, BorderLayout.SOUTH);
frame.setSize(300, 125);
frame.setVisible(true);
}
}

</source>

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в 17:43, 31 мая 2010

Admin: 1 версия