// **********************************************************************// // <copyright>// //  BBN Technologies//  10 Moulton Street//  Cambridge, MA 02138//  (617) 873-8000// //  Copyright (C) BBNT Solutions LLC. All rights reserved.// // </copyright>// **********************************************************************// // $Source: /cvs/distapps/openmap/src/openmap/com/bbn/openmap/util/propertyEditor/FilePropertyEditor.java,v $// $RCSfile: FilePropertyEditor.java,v $// $Revision: 1.4.2.3 $// $Date: 2005/05/24 18:38:30 $// $Author: dietrick $// // **********************************************************************package com.bbn.openmap.util.propertyEditor;import java.awt.Component;import java.awt.GridBagConstraints;import java.awt.GridBagLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.beans.PropertyEditorSupport;import javax.swing.JButton;import javax.swing.JFileChooser;import javax.swing.JPanel;import javax.swing.JTextField;/** * A PropertyEditor that brings up a JFileChooser panel to select a * file. A single file choice can be made, and only choices that * reside on the local file system. */public class FilePropertyEditor extends PropertyEditorSupport implements        ActionListener {    /** The Component returned by getCustomEditor(). */    protected JButton button;    protected JTextField textField = new JTextField(15);    /** Create FilePropertyEditor. */    public FilePropertyEditor() {        button = new JButton(getButtonTitle());        textField.setEditable(isTextFieldEditable());    }    /**     * Internal callback method that can be overridden by subclasses.     *      * @return "Set" for FilePropertyEditor.     */    public String getButtonTitle() {        return "Set";    }    /**     * Internal callback method that can be overridden by subclasses.     *      * @return false for FilePropertyEditor.     */    public boolean isTextFieldEditable() {        return false;    }    /**     * Internal callback method that can be overridden by subclasses.     *      * @return JFileChooser.FILES_ONLY for FilePropertyEditor.     */    public int getFileSelectionMode() {        return JFileChooser.FILES_ONLY;    }    /**     * Internal callback method that can be overridden by subclasses.     *      * @return false for FilePropertyEditor.     */    public boolean isMultiSelectEnabled() {        return false;    }    //    //  PropertyEditor interface    //    /**     * PropertyEditor interface.     *      * @return true     */    public boolean supportsCustomEditor() {        return true;    }    public void actionPerformed(ActionEvent e) {        JFileChooser chooser = getFileChooser();        int returnVal = chooser.showOpenDialog((Component) null);        if (returnVal == JFileChooser.APPROVE_OPTION) {            String newFilename = chooser.getSelectedFile().getAbsolutePath();            newFilename = cleanUpName(newFilename);            textField.setText(newFilename);            firePropertyChange();        }    }    /**     * Change double backslashes to forward slash, OK for java world.     */    protected String cleanUpName(String name) {        // replace all back slashes with forward slashes to permit        // safe writing and reading from PrintStreams        return name.replace('\\', '/').trim();    }    /**     * Returns an uneditable text area with a JButton that will bring     * up a JFileChooser dialog.     *      * @return JButton button     */    public Component getCustomEditor() {        button.addActionListener(this);        JPanel jp = new JPanel();        GridBagLayout gridbag = new GridBagLayout();        GridBagConstraints c = new GridBagConstraints();        jp.setLayout(gridbag);        c.weightx = 1f;        c.fill = GridBagConstraints.HORIZONTAL;        gridbag.setConstraints(textField, c);        jp.add(textField);        c.weightx = 0;        c.anchor = GridBagConstraints.EAST;        c.fill = GridBagConstraints.NONE;        gridbag.setConstraints(button, c);        jp.add(button);        return jp;    }    public JFileChooser getFileChooser() {        JFileChooser chooser = new JFileChooser(getLastLocation());        chooser.setFileSelectionMode(getFileSelectionMode());        chooser.setMultiSelectionEnabled(isMultiSelectEnabled());        return chooser;    }    /** Implement PropertyEditor interface. */    public void setValue(Object someObj) {        if (someObj instanceof String) {            textField.setText((String) someObj);        }    }    /** Implement PropertyEditor interface. */    public String getAsText() {        return textField.getText();    }    public String getLastLocation() {        String currentLocation = getAsText();        char sepChar = '/'; // Java path separator        int lastSepIndex = currentLocation.lastIndexOf(sepChar);        //      System.out.println(currentLocation + ", index of " +        // sepChar + " is at " + lastSepIndex);        if (currentLocation.equals("") || lastSepIndex == -1) {            currentLocation = null;        } else {            String substring = currentLocation.substring(0, lastSepIndex);            //          System.out.println(substring);            currentLocation = substring;        }        return currentLocation;    }}