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nsIImageDocument.idl

/* -*- 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
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 * 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
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 * 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.
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 * Contributor(s):
 *   Jan Varga <varga@ku.sk>
 *
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 * 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"),
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#include "nsISupports.idl"

/**
 * @status UNDER_DEVELOPMENT
 */

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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