java.awt.FileDialog#setTitle ( )源码实例Demo

private FileDialog createFileDialog( File currentDirectory ) {
    if( badger != null )
        return null;
    if( !Boolean.getBoolean("nb.native.filechooser") )
        return null;
    if( dirsOnly && !BaseUtilities.isMac() )
        return null;
    Component parentComponent = findDialogParent();
    Frame parentFrame = (Frame) SwingUtilities.getAncestorOfClass(Frame.class, parentComponent);
    FileDialog fileDialog = new FileDialog(parentFrame);
    if (title != null) {
        fileDialog.setTitle(title);
    }
    if( null != currentDirectory )
        fileDialog.setDirectory(currentDirectory.getAbsolutePath());
    return fileDialog;
}
 

private File chooseFile() {
    JFrame mainFrame = (JFrame) WindowManager.getDefault().getMainWindow();
    FileDialog fileDialog = new FileDialog(mainFrame, new File(System.getProperty("user.home")).toString());
    fileDialog.setTitle("Export changes in cvs file");
    fileDialog.setFile("expected.csv");
    fileDialog.setMode(FileDialog.SAVE);
    fileDialog.setFilenameFilter(new ExtFileFilter("csv"));
    fileDialog.setVisible(true);
    String filename = fileDialog.getFile();
    if (filename == null){
        return null;
    }
    String dir = fileDialog.getDirectory();
    return new File(dir + File.separator + filename);
}
 

/**
 * {@inheritDoc} Displays a file chooser dialog
 * and opens the selected files.
 */
@Override
public void actionPerformed(ActionEvent e) {
    if (running) {
        return;
    }
    try {
        running = true;
        JFileChooser chooser = prepareFileChooser();
        File[] files;
        try {
            if( Boolean.getBoolean("nb.native.filechooser") ) { //NOI18N
                String oldFileDialogProp = System.getProperty("apple.awt.fileDialogForDirectories"); //NOI18N
                System.setProperty("apple.awt.fileDialogForDirectories", "false"); //NOI18N
                FileDialog fileDialog = new FileDialog(WindowManager.getDefault().getMainWindow());
                fileDialog.setMode(FileDialog.LOAD);
                fileDialog.setDirectory(getCurrentDirectory().getAbsolutePath());
                fileDialog.setTitle(chooser.getDialogTitle());
                fileDialog.setVisible(true);
                if( null != oldFileDialogProp ) {
                    System.setProperty("apple.awt.fileDialogForDirectories", oldFileDialogProp); //NOI18N
                } else {
                    System.clearProperty("apple.awt.fileDialogForDirectories"); //NOI18N
                }

                if( fileDialog.getDirectory() != null && fileDialog.getFile() != null ) {
                    String selFile = fileDialog.getFile();
                    File dir = new File( fileDialog.getDirectory() );
                    files = new File[] { new File( dir, selFile ) };
                    currentDirectory = dir;
                } else {
                    throw new UserCancelException();
                }
            } else {
                files = chooseFilesToOpen(chooser);
                currentDirectory = chooser.getCurrentDirectory();
                if (chooser.getFileFilter() != null) { // #227187
                    currentFileFilter =
                            chooser.getFileFilter().getDescription();
                }
            }
        } catch (UserCancelException ex) {
            return;
        }
        for (int i = 0; i < files.length; i++) {
            OpenFile.openFile(files[i], -1);
        }
    } finally {
        running = false;
    }
}