| /******************************************************************************* |
| * Copyright (c) 2000, 2004 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 java.util.ArrayList; |
| import java.util.StringTokenizer; |
| |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.DirectoryDialog; |
| |
| /** |
| * A field editor to edit directory paths. |
| */ |
| public class PathEditor extends ListEditor { |
| |
| /** |
| * The last path, or <code>null</code> if none. |
| */ |
| private String lastPath; |
| |
| /** |
| * The special label text for directory chooser, |
| * or <code>null</code> if none. |
| */ |
| private String dirChooserLabelText; |
| |
| /** |
| * Creates a new path field editor |
| */ |
| protected PathEditor() { |
| } |
| |
| /** |
| * Creates a path field editor. |
| * |
| * @param name the name of the preference this field editor works on |
| * @param labelText the label text of the field editor |
| * @param dirChooserLabelText the label text displayed for the directory chooser |
| * @param parent the parent of the field editor's control |
| */ |
| public PathEditor(String name, String labelText, |
| String dirChooserLabelText, Composite parent) { |
| init(name, labelText); |
| this.dirChooserLabelText = dirChooserLabelText; |
| createControl(parent); |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on ListEditor. |
| * Creates a single string from the given array by separating each |
| * string with the appropriate OS-specific path separator. |
| */ |
| protected String createList(String[] items) { |
| StringBuffer path = new StringBuffer("");//$NON-NLS-1$ |
| |
| for (int i = 0; i < items.length; i++) { |
| path.append(items[i]); |
| path.append(File.pathSeparator); |
| } |
| return path.toString(); |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on ListEditor. |
| * Creates a new path element by means of a directory dialog. |
| */ |
| protected String getNewInputObject() { |
| |
| DirectoryDialog dialog = new DirectoryDialog(getShell()); |
| if (dirChooserLabelText != null) |
| dialog.setMessage(dirChooserLabelText); |
| if (lastPath != null) { |
| if (new File(lastPath).exists()) |
| dialog.setFilterPath(lastPath); |
| } |
| String dir = dialog.open(); |
| if (dir != null) { |
| dir = dir.trim(); |
| if (dir.length() == 0) |
| return null; |
| lastPath = dir; |
| } |
| return dir; |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on ListEditor. |
| */ |
| protected String[] parseString(String stringList) { |
| StringTokenizer st = new StringTokenizer(stringList, File.pathSeparator |
| + "\n\r");//$NON-NLS-1$ |
| ArrayList v = new ArrayList(); |
| while (st.hasMoreElements()) { |
| v.add(st.nextElement()); |
| } |
| return (String[]) v.toArray(new String[v.size()]); |
| } |
| } |