printdialog.java

Java程序设计技巧与开发实例附书源代码。

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;

public class PrintDialog
    extends JFrame
    implements ActionListener {
  private JButton okay = new JButton("OK");
  private JButton cancel = new JButton("Cancel");
  private JRadioButton all = new JRadioButton("All Pages");
  private JRadioButton current = new JRadioButton("Current Page");
  private JRadioButton selected = new JRadioButton("Selected Pages");
  private JCheckBox numbers = new JCheckBox("Include Line Numbers");
  private JCheckBox headers = new JCheckBox("Header on all pages");
  private JCheckBox fileName = new JCheckBox("File name on each page");
  private JComboBox printers = new JComboBox();

  public PrintDialog() {
    super("Print Dialog");
    printers.addItem("HP DeskJet 690C");
    printers.addItem("HP DeskJet 870C Series");
    printers.addItem("HP LaserJet 5");
    printers.addItem("Networked Office Printer");
    printers.addItem("Networked Computer Lab Printer");
    JPanel printerPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
    printerPanel.setBorder(new TitledBorder("Printer Selection"));
    printerPanel.add(new JLabel("Name: "));
    printerPanel.add(printers);

    ButtonGroup pageOptions = new ButtonGroup();
    pageOptions.add(all);
    pageOptions.add(current);
    pageOptions.add(selected);
    all.setSelected(true);

    JPanel pagePanel = new JPanel(new GridLayout(3, 1));
    pagePanel.add(all);
    all.addActionListener(this);
    pagePanel.add(current);
    current.addActionListener(this);
    pagePanel.add(selected);
    selected.addActionListener(this);
    pagePanel.setBorder(new TitledBorder("Print Range:"));

    JPanel optionsPanel = new JPanel(new GridLayout(3, 1));
    optionsPanel.add(numbers);
    numbers.addActionListener(this);
    optionsPanel.add(headers);
    headers.addActionListener(this);
    optionsPanel.add(fileName);
    fileName.addActionListener(this);
    optionsPanel.setBorder(new TitledBorder("Format Options:"));

    JPanel buttons = new JPanel(new FlowLayout());
    buttons.add(okay);
    okay.addActionListener(this);
    buttons.add(cancel);
    cancel.addActionListener(this);

    getContentPane().setLayout(new BorderLayout());
    getContentPane().add("West", pagePanel);
    getContentPane().add("East", optionsPanel);
    getContentPane().add("South", buttons);
    getContentPane().add("North", printerPanel);
    validate();
    pack();
    setVisible(true);
  }

  public void actionPerformed(ActionEvent ae) {
    if ( (ae.getSource() == okay) || (ae.getSource() == cancel)) {
      System.out.println("Printer: " + printers.getSelectedItem());
      System.exit(0);
    }
    else {
      System.out.println("Command: " + ae.getActionCommand());
    }
  }

  public static void main(String args[]) {
    try {
      String lf = "com.sun.java.swing.plaf.windows.WindowsLookAndFeel";
      UIManager.setLookAndFeel(lf);
    }
    catch (Exception e) {
      System.err.println("Exception: " + e);
    }
    PrintDialog pd = new PrintDialog();
  }
}