| package org.eclipse.swt.widgets;
|
|
|
| /*
|
| * Copyright (c) 2000, 2002 IBM Corp. All rights reserved. |
| * This file is made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html
|
| */
|
|
|
| import org.eclipse.swt.*;
|
| import org.eclipse.swt.internal.*;
|
| import org.eclipse.swt.internal.gtk.*;
|
| import org.eclipse.swt.widgets.*;
|
|
|
| /**
|
| * Instances of this class allow the user to navigate
|
| * the file system and select a directory.
|
| * <p>
|
| * IMPORTANT: This class is intended to be subclassed <em>only</em>
|
| * within the SWT implementation.
|
| * </p>
|
| */ |
| public class DirectoryDialog extends GtkFileDialog {
|
| String message = "", filterPath = "";
|
|
|
| /**
|
| * Constructs a new instance of this class given only its
|
| * parent.
|
| * <p>
|
| * Note: Currently, null can be passed in for the parent.
|
| * This has the effect of creating the dialog on the currently active
|
| * display if there is one. If there is no current display, the
|
| * dialog is created on a "default" display. <b>Passing in null as
|
| * the parent is not considered to be good coding style,
|
| * and may not be supported in a future release of SWT.</b>
|
| * </p>
|
| *
|
| * @param parent a shell which will be the parent of the new instance
|
| *
|
| * @exception IllegalArgumentException <ul>
|
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
|
| * </ul>
|
| * @exception SWTException <ul>
|
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
|
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
|
| * </ul>
|
| */ |
| public DirectoryDialog (Shell parent) {
|
| this (parent, SWT.PRIMARY_MODAL);
|
| }
|
| /**
|
| * Constructs a new instance of this class given its parent
|
| * and a style value describing its behavior and appearance.
|
| * <p>
|
| * The style value is either one of the style constants defined in
|
| * class <code>SWT</code> which is applicable to instances of this
|
| * class, or must be built by <em>bitwise OR</em>'ing together
|
| * (that is, using the <code>int</code> "|" operator) two or more
|
| * of those <code>SWT</code> style constants. The class description
|
| * lists the style constants that are applicable to the class.
|
| * Style bits are also inherited from superclasses.
|
| * </p>
|
| * Note: Currently, null can be passed in for the parent.
|
| * This has the effect of creating the dialog on the currently active
|
| * display if there is one. If there is no current display, the
|
| * dialog is created on a "default" display. <b>Passing in null as
|
| * the parent is not considered to be good coding style,
|
| * and may not be supported in a future release of SWT.</b>
|
| * </p>
|
| *
|
| * @param parent a shell which will be the parent of the new instance
|
| *
|
| * @exception IllegalArgumentException <ul>
|
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
|
| * </ul>
|
| * @exception SWTException <ul>
|
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
|
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
|
| * </ul>
|
| */ |
| public DirectoryDialog (Shell parent, int style) {
|
| super (parent, style);
|
| checkSubclass ();
|
| }
|
| /**
|
| * Returns the path which the dialog will use to filter
|
| * the directories it shows.
|
| *
|
| * @return the filter path
|
| */ |
| public String getFilterPath () {
|
| return filterPath;
|
| }
|
| /**
|
| * Returns the dialog's message, which is a description of
|
| * the purpose for which it was opened. This message will be
|
| * visible on the dialog while it is open.
|
| *
|
| * @return the message
|
| */ |
| public String getMessage () {
|
| return message;
|
| }
|
|
|
| /**
|
| * Makes the dialog visible and brings it to the front
|
| * of the display.
|
| *
|
| * @return a string describing the absolute path of the selected directory,
|
| * or null if the dialog was cancelled or an error occurred
|
| *
|
| * @exception SWTException <ul>
|
| * <li>ERROR_WIDGET_DISPOSED - if the dialog has been disposed</li>
|
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the dialog</li>
|
| * </ul>
|
| */ |
| public String open () {
|
| return super.open();
|
| }
|
|
|
| /**
|
| * Sets the path which the dialog will use to filter
|
| * the directories it shows to the argument, which may be
|
| * null.
|
| *
|
| * @param string the filter path
|
| */ |
| public void setFilterPath (String string) {
|
| filterPath = string;
|
| }
|
| /**
|
| * Sets the dialog's message, which is a description of
|
| * the purpose for which it was opened. This message will be
|
| * visible on the dialog while it is open.
|
| *
|
| * @param string the message
|
| */ |
| public void setMessage (String string) {
|
| /*
|
| * The native Gtk file selection dialog does not support message
|
| * strings other than the dialog title. However, we maintain the set
|
| * message so at least the application programs get back the same string.
|
| */
|
| message = string;
|
| }
|
|
|
| void interpretOsAnswer(String osAnswer) {
|
| if (osAnswer==null) return;
|
| int separatorIndex = calculateLastSeparatorIndex(osAnswer);
|
| if (separatorIndex+1 != osAnswer.length()) {
|
| /*
|
| * the selected thing is a file
|
| */
|
| answer = null;
|
| return;
|
| }
|
| answer = osAnswer;
|
| }
|
| void preset() {
|
| if (filterPath != null) {
|
| byte [] filterBytes = Converter.wcsToMbcs (null, filterPath, true);
|
| OS.gtk_file_selection_set_filename (handle, filterBytes);
|
| }
|
| }
|
| }
|