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Java Source | 2000-05-25 | 4.5 KB | 124 lines |
- //: FileDialogNew.java
- //////////////////////////////////////////////////
- // Copyright (c) Bruce Eckel, 1998
- // Source code file from the book "Thinking in Java"
- // All rights reserved EXCEPT as allowed by the
- // following statements: You can freely use this file
- // for your own work (personal or commercial),
- // including modifications and distribution in
- // executable form only. Permission is granted to use
- // this file in classroom situations, including its
- // use in presentation materials, as long as the book
- // "Thinking in Java" is cited as the source.
- // Except in classroom situations, you cannot copy
- // and distribute this code; instead, the sole
- // distribution point is http://www.BruceEckel.com
- // (and official mirror sites) where it is
- // freely available. You cannot remove this
- // copyright and notice. You cannot distribute
- // modified versions of the source code in this
- // package. You cannot use this file in printed
- // media without the express permission of the
- // author. Bruce Eckel makes no representation about
- // the suitability of this software for any purpose.
- // It is provided "as is" without express or implied
- // warranty of any kind, including any implied
- // warranty of merchantability, fitness for a
- // particular purpose or non-infringement. The entire
- // risk as to the quality and performance of the
- // software is with you. Bruce Eckel and the
- // publisher shall not be liable for any damages
- // suffered by you or any third party as a result of
- // using or distributing software. In no event will
- // Bruce Eckel or the publisher be liable for any
- // lost revenue, profit, or data, or for direct,
- // indirect, special, consequential, incidental, or
- // punitive damages, however caused and regardless of
- // the theory of liability, arising out of the use of
- // or inability to use software, even if Bruce Eckel
- // and the publisher have been advised of the
- // possibility of such damages. Should the software
- // prove defective, you assume the cost of all
- // necessary servicing, repair, or correction. If you
- // think you've found an error, please email all
- // modified files with clearly commented changes to:
- // Bruce@EckelObjects.com. (Please use the same
- // address for non-code errors found in the book.)
- /////////////////////////////////////////////////
-
- // Demonstration of File dialog boxes
- import java.awt.*;
- import java.awt.event.*;
-
- public class FileDialogNew extends Frame {
- TextField filename = new TextField();
- TextField directory = new TextField();
- Button open = new Button("Open");
- Button save = new Button("Save");
- public FileDialogNew() {
- setTitle("File Dialog Test");
- Panel p = new Panel();
- p.setLayout(new FlowLayout());
- open.addActionListener(new OpenL());
- p.add(open);
- save.addActionListener(new SaveL());
- p.add(save);
- add(p, BorderLayout.SOUTH);
- directory.setEditable(false);
- filename.setEditable(false);
- p = new Panel();
- p.setLayout(new GridLayout(2,1));
- p.add(filename);
- p.add(directory);
- add(p, BorderLayout.NORTH);
- }
- class OpenL implements ActionListener {
- public void actionPerformed(ActionEvent e) {
- // Two arguments, defaults to open file:
- FileDialog d = new FileDialog(
- FileDialogNew.this,
- "What file do you want to open?");
- d.setFile("*.java");
- d.setDirectory("."); // Current directory
- d.show();
- String yourFile = "*.*";
- if((yourFile = d.getFile()) != null) {
- filename.setText(yourFile);
- directory.setText(d.getDirectory());
- } else {
- filename.setText("You pressed cancel");
- directory.setText("");
- }
- }
- }
- class SaveL implements ActionListener {
- public void actionPerformed(ActionEvent e) {
- FileDialog d = new FileDialog(
- FileDialogNew.this,
- "What file do you want to save?",
- FileDialog.SAVE);
- d.setFile("*.java");
- d.setDirectory(".");
- d.show();
- String saveFile;
- if((saveFile = d.getFile()) != null) {
- filename.setText(saveFile);
- directory.setText(d.getDirectory());
- } else {
- filename.setText("You pressed cancel");
- directory.setText("");
- }
- }
- }
- public static void main(String[] args) {
- Frame f = new FileDialogNew();
- f.addWindowListener(
- new WindowAdapter() {
- public void windowClosing(WindowEvent e) {
- System.exit(0);
- }
- });
- f.setSize(250,110);
- f.setVisible(true);
- }
- } ///:~