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93 lines
3.3 KiB
Plaintext
93 lines
3.3 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2001
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Stuart Parmenter <pavlov@netscape.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsISupports.idl"
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interface nsIInputStream;
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interface imgILoad;
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/**
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* imgIDecoder interface
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*
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* @author Stuart Parmenter <pavlov@netscape.com>
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* @version 0.2
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* @see imagelib2
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*/
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[scriptable, uuid(9eebf43a-1dd1-11b2-953e-f1782f4cbad3)]
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interface imgIDecoder : nsISupports
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{
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/**
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* Initialize an image decoder.
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* @param aRequest the request that owns the decoder.
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*
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* @note The decode should QI \a aLoad to an imgIDecoderObserver
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* and should send decoder notifications to the request.
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* The decoder should always pass NULL as the first two parameters to
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* all of the imgIDecoderObserver APIs.
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*/
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void init(in imgILoad aLoad);
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/**
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* Closes the stream.
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*/
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void close();
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/**
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* Flushes the stream.
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*/
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void flush();
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/**
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* Writes data into the stream from an input stream.
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* Implementer's note: This method is defined by this interface in order
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* to allow the output stream to efficiently copy the data from the input
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* stream into its internal buffer (if any). If this method was provide
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* as an external facility, a separate char* buffer would need to be used
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* in order to call the output stream's other Write method.
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* @param fromStream the stream from which the data is read
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* @param count the maximun number of bytes to write
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* @return aWriteCount out parameter to hold the number of
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* bytes written. if an error occurs, the writecount
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* is undefined
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*/
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unsigned long writeFrom(in nsIInputStream inStr,
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in unsigned long count);
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};
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