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package horstmann.ch05_mailgui;
import java.awt.BorderLayout;
import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextArea;
/**
Presents a phone GUI for the voice mail system.
*/
public class Telephone
{
/**
Constructs a telephone with a speaker, keypad,
and microphone.
*/
public Telephone()
{
JPanel speakerPanel = new JPanel();
speakerPanel.setLayout(new BorderLayout());
speakerPanel.add(new JLabel("Speaker:"),
BorderLayout.NORTH);
speakerField = new JTextArea(10, 25);
speakerPanel.add(speakerField,
BorderLayout.CENTER);
String keyLabels = "123456789*0#";
JPanel keyPanel = new JPanel();
keyPanel.setLayout(new GridLayout(4, 3));
for (int i = 0; i < keyLabels.length(); i++)
{
final String label = keyLabels.substring(i, i + 1);
JButton keyButton = new JButton(label);
keyPanel.add(keyButton);
keyButton.addActionListener(event -> connect.dial(label));
}
final JTextArea microphoneField = new JTextArea(10,25);
JButton speechButton = new JButton("Send speech");
speechButton.addActionListener(event -> {
connect.record(microphoneField.getText());
microphoneField.setText("");
});
JButton hangupButton = new JButton("Hangup");
hangupButton.addActionListener(event -> connect.hangup());
JPanel buttonPanel = new JPanel();
buttonPanel.add(speechButton);
buttonPanel.add(hangupButton);
JPanel microphonePanel = new JPanel();
microphonePanel.setLayout(new BorderLayout());
microphonePanel.add(new JLabel("Microphone:"),
BorderLayout.NORTH);
microphonePanel.add(microphoneField, BorderLayout.CENTER);
microphonePanel.add(buttonPanel, BorderLayout.SOUTH);
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(speakerPanel, BorderLayout.NORTH);
frame.add(keyPanel, BorderLayout.CENTER);
frame.add(microphonePanel, BorderLayout.SOUTH);
frame.pack();
frame.setVisible(true);
}
/**
Give instructions to the mail system user.
*/
public void speak(String output)
{
speakerField.setText(output);
}
public void run(Connection c)
{
connect = c;
}
private JTextArea speakerField;
private Connection connect;
}
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