Example usage for javax.swing JFileChooser FILE_FILTER_CHANGED_PROPERTY

Introduction

In this page you can find the example usage for javax.swing JFileChooser FILE_FILTER_CHANGED_PROPERTY.

Prototype

String FILE_FILTER_CHANGED_PROPERTY

To view the source code for javax.swing JFileChooser FILE_FILTER_CHANGED_PROPERTY.

Click Source Link

Document

User changed the kind of files to display.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    final JFileChooser chooser = new JFileChooser();

    chooser.addPropertyChangeListener(new PropertyChangeListener() {
        public void propertyChange(PropertyChangeEvent evt) {
            if (JFileChooser.FILE_FILTER_CHANGED_PROPERTY.equals(evt.getPropertyName())) {
                JFileChooser chooser = (JFileChooser) evt.getSource();
                File oldDir = (File) evt.getOldValue();
                File newDir = (File) evt.getNewValue();

                File curDir = chooser.getCurrentDirectory();
            }/*  ww  w  .  j  a  v  a 2  s.  c  o  m*/
        }
    });
}

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From source file:org.yccheok.jstock.gui.Utils.java

public static FileEx promptSavePortfolioCSVAndExcelJFileChooser(final String suggestedFileName) {
    final JStockOptions jStockOptions = JStock.instance().getJStockOptions();
    final JFileChooser chooser = new JFileChooser(jStockOptions.getLastFileIODirectory());
    final FileNameExtensionFilter csvFilter = new FileNameExtensionFilter("CSV Documents (*.csv)", "csv");
    final FileNameExtensionFilter xlsFilter = new FileNameExtensionFilter("Microsoft Excel (*.xls)", "xls");
    chooser.setAcceptAllFileFilterUsed(false);
    chooser.addChoosableFileFilter(csvFilter);
    chooser.addChoosableFileFilter(xlsFilter);

    final org.yccheok.jstock.gui.file.PortfolioSelectionJPanel portfolioSelectionJPanel = new org.yccheok.jstock.gui.file.PortfolioSelectionJPanel();
    chooser.setAccessory(portfolioSelectionJPanel);
    chooser.addPropertyChangeListener(JFileChooser.FILE_FILTER_CHANGED_PROPERTY, new PropertyChangeListener() {

        @Override/*from  ww  w .j a va2  s .  c o  m*/
        public void propertyChange(PropertyChangeEvent evt) {
            final boolean flag = ((FileNameExtensionFilter) evt.getNewValue()).equals(csvFilter);
            portfolioSelectionJPanel.setEnabled(flag);
            chooser.setSelectedFile(chooser.getFileFilter().getDescription().equals(csvFilter.getDescription())
                    ? new File(portfolioSelectionJPanel.getSuggestedFileName())
                    : new File(suggestedFileName));
        }

    });
    portfolioSelectionJPanel.addJRadioButtonsActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            chooser.setSelectedFile(new File(portfolioSelectionJPanel.getSuggestedFileName()));
        }

    });
    final java.util.Map<String, FileNameExtensionFilter> map = new HashMap<String, FileNameExtensionFilter>();
    map.put(csvFilter.getDescription(), csvFilter);
    map.put(xlsFilter.getDescription(), xlsFilter);

    final FileNameExtensionFilter filter = map.get(jStockOptions.getLastSavedFileNameExtensionDescription());
    if (filter != null) {
        chooser.setFileFilter(filter);
    }

    // Only enable portfolioSelectionJPanel, if CSV is being selected.
    portfolioSelectionJPanel
            .setEnabled(chooser.getFileFilter().getDescription().equals(csvFilter.getDescription()));
    chooser.setSelectedFile(chooser.getFileFilter().getDescription().equals(csvFilter.getDescription())
            ? new File(portfolioSelectionJPanel.getSuggestedFileName())
            : new File(suggestedFileName));

    while (true) {
        final int returnVal = chooser.showSaveDialog(JStock.instance());
        if (returnVal != JFileChooser.APPROVE_OPTION) {
            return null;
        }

        File file = chooser.getSelectedFile();
        if (file == null) {
            return null;
        }

        // Ensure the saved file is in correct extension. If user provide correct
        // file extension explicitly, leave it as is. If not, mutate the filename.
        final String extension = Utils.getFileExtension(file);
        if (extension.equals("csv") == false && extension.equals("xls") == false) {
            if (chooser.getFileFilter().getDescription().equals(csvFilter.getDescription())) {
                file = new File(file.getAbsolutePath() + ".csv");
            } else if (chooser.getFileFilter().getDescription().equals(xlsFilter.getDescription())) {
                file = new File(file.getAbsolutePath() + ".xls");
            } else {
                // Impossible.
                return null;
            }
        }

        if (file.exists()) {
            final String output = MessageFormat
                    .format(MessagesBundle.getString("question_message_replace_old_template"), file.getName());

            final int result = javax.swing.JOptionPane.showConfirmDialog(JStock.instance(), output,
                    MessagesBundle.getString("question_title_replace_old"),
                    javax.swing.JOptionPane.YES_NO_OPTION, javax.swing.JOptionPane.QUESTION_MESSAGE);
            if (result != javax.swing.JOptionPane.YES_OPTION) {
                continue;
            }
        }

        final String parent = chooser.getSelectedFile().getParent();
        if (parent != null) {
            jStockOptions.setLastFileIODirectory(parent);
        }

        if (Utils.getFileExtension(file).equals("csv")) {
            jStockOptions.setLastFileNameExtensionDescription(csvFilter.getDescription());
        } else if (Utils.getFileExtension(file).equals("xls")) {
            jStockOptions.setLastFileNameExtensionDescription(xlsFilter.getDescription());
        } else {
            // Impossible.
            return null;
        }

        return new FileEx(file, portfolioSelectionJPanel.getType());
    }
}

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