Example usage for javax.swing JFileChooser addPropertyChangeListener

Introduction

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

Prototype

public void addPropertyChangeListener(String propertyName, PropertyChangeListener listener) 

Source Link

Document

Adds a PropertyChangeListener to the listener list for a specific property.

Usage

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  w  w w. j a v a  2s  . co 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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