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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 * The Original Code is mozilla.org code.
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2003
 * the Initial Developer. All Rights Reserved.
 * Contributor(s):
 *   Jan Varga <varga@ku.sk>
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 * ***** END LICENSE BLOCK ***** */

#include "nsISupports.idl"


interface imgIRequest;

[scriptable, uuid(7b80eebc-c98e-4461-8bdb-6e3b6e828890)]
interface nsIImageDocument : nsISupports {

  /* Whether the pref for image resizing has been set. */
  readonly attribute boolean imageResizingEnabled;

  /* Whether the image is overflowing visible area. */
  readonly attribute boolean imageIsOverflowing;

  /* Whether the image has been resized to fit visible area. */
  readonly attribute boolean imageIsResized;

  /* The image request being displayed in the content area */
  readonly attribute imgIRequest imageRequest;

  /* Resize the image to fit visible area. */
  void shrinkToFit();

  /* Restore image original size. */
  void restoreImage();

  /* Restore the image, trying to keep a certain pixel in the same position.
   * The coordinate system is that of the shrunken image.
  void restoreImageTo(in long x, in long y);

  /* A helper method for switching between states.
   * The switching logic is as follows. If the image has been resized
   * restore image original size, otherwise if the image is overflowing
   * current visible area resize the image to fit the area.
  void toggleImageSize();

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