text: /* -*- 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 Communicator client code.
   *
   * The Initial Developer of the Original Code is
   * Netscape Communications Corporation.
   * Portions created by the Initial Developer are Copyright (C) 1998
   * the Initial Developer. All Rights Reserved.
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   * Contributor(s):
   *
   * Alternatively, the contents of this file may be used under the terms of
   * either of 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
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   * ***** END LICENSE BLOCK ***** */
  
  /* utilities for regression tests based on frame tree comparison */
  
  #ifndef nsIFrameUtil_h___
  #define nsIFrameUtil_h___
  
  #include <stdio.h>
  #include "nsISupports.h"
  
  /* a6cf90d4-15b3-11d2-932e-00805f8add32 */
  #define NS_IFRAME_UTIL_IID \
   { 0xa6cf90d6, 0x15b3, 0x11d2,{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}}
  
  /**
   * Frame utility interface
   */
  class nsIFrameUtil : public nsISupports {
  public:
    NS_DECLARE_STATIC_IID_ACCESSOR(NS_IFRAME_UTIL_IID)
    /**
     * Compare two regression data dumps. The return status will be NS_OK
     * if the trees compare favoribly, otherwise the return will indicate
     * NS_ERROR_FAILURE. Other return status's will indicate some other
     * type of failure. The files, aFile1 and aFile2 are closed before
     * returning. 
     * aRegressionOutput will vary output, 0 is full output, 1 is brief
     */
    NS_IMETHOD CompareRegressionData(FILE* aFile1, FILE* aFile2,PRInt32 aRegressionOuput) = 0;
  
    /**
     * Display the regression dump data stored in aInputFile1 to
     * aOutputFile . The file is closed before returning. If the
     * regression data is in error somehow then NS_ERROR_FAILURE will be
     * returned.
     */
    NS_IMETHOD DumpRegressionData(FILE* aInputFile, FILE* aOutputFile) = 0;
  };
  
  NS_DEFINE_STATIC_IID_ACCESSOR(nsIFrameUtil, NS_IFRAME_UTIL_IID)
  
  #endif /* nsIFrameUtil_h___ */
  