///*******************************************************************************
// * Copyright (c) 2000, 2006 IBM Corporation and others.
// * All rights reserved. This program and the accompanying materials
// * are made available under the terms of the Eclipse Public License v1.0
// * which accompanies this distribution, and is available at
// * http://www.eclipse.org/legal/epl-v10.html
// *
// * Contributors:
// * IBM Corporation - initial API and implementation
// *******************************************************************************/
//package org.eclipse.jface.preference;
//
//import java.io.File;
//
//import org.eclipse.jface.resource.JFaceResources;
//import org.eclipse.swt.SWT;
//import org.eclipse.swt.widgets.Composite;
//import org.eclipse.swt.widgets.DirectoryDialog;
//
///**
// * A field editor for a directory path type preference. A standard directory
// * dialog appears when the user presses the change button.
// */
//public class DirectoryFieldEditor extends StringButtonFieldEditor {
// /**
// * Creates a new directory field editor
// */
// protected DirectoryFieldEditor() {
// }
//
// /**
// * Creates a directory field editor.
// *
// * @param name the name of the preference this field editor works on
// * @param labelText the label text of the field editor
// * @param parent the parent of the field editor's control
// */
// public DirectoryFieldEditor(String name, String labelText, Composite parent) {
// init(name, labelText);
// setErrorMessage(JFaceResources
// .getString("DirectoryFieldEditor.errorMessage"));//$NON-NLS-1$
// setChangeButtonText(JFaceResources.getString("openBrowse"));//$NON-NLS-1$
// setValidateStrategy(VALIDATE_ON_FOCUS_LOST);
// createControl(parent);
// }
//
// /* (non-Javadoc)
// * Method declared on StringButtonFieldEditor.
// * Opens the directory chooser dialog and returns the selected directory.
// */
// protected String changePressed() {
// File f = new File(getTextControl().getText());
// if (!f.exists()) {
// f = null;
// }
// File d = getDirectory(f);
// if (d == null) {
// return null;
// }
//
// return d.getAbsolutePath();
// }
//
// /* (non-Javadoc)
// * Method declared on StringFieldEditor.
// * Checks whether the text input field contains a valid directory.
// */
// protected boolean doCheckState() {
// String fileName = getTextControl().getText();
// fileName = fileName.trim();
// if (fileName.length() == 0 && isEmptyStringAllowed()) {
// return true;
// }
// File file = new File(fileName);
// return file.isDirectory();
// }
//
// /**
// * Helper that opens the directory chooser dialog.
// * @param startingDirectory The directory the dialog will open in.
// * @return File File or <code>null</code>.
// *
// */
// private File getDirectory(File startingDirectory) {
//
// DirectoryDialog fileDialog = new DirectoryDialog(getShell(), SWT.OPEN);
// if (startingDirectory != null) {
// fileDialog.setFilterPath(startingDirectory.getPath());
// }
// String dir = fileDialog.open();
// if (dir != null) {
// dir = dir.trim();
// if (dir.length() > 0) {
// return new File(dir);
// }
// }
//
// return null;
// }
//}