gecko-dev/xpcom/ds/nsIUnicharBuffer.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#ifndef nsIUnicharBuffer_h___
#define nsIUnicharBuffer_h___
#include "nscore.h"
#include "nsISupports.h"
class nsIUnicharInputStream;
#define NS_IUNICHAR_BUFFER_IID \
{ 0x14cf6970, 0x93b5, 0x11d1, \
{0x89, 0x5b, 0x00, 0x60, 0x08, 0x91, 0x1b, 0x81} }
/// Interface to a buffer that holds unicode characters
class nsIUnicharBuffer : public nsISupports {
public:
virtual PRInt32 GetLength() const = 0;
virtual PRInt32 GetBufferSize() const = 0;
virtual PRUnichar* GetBuffer() const = 0;
virtual PRBool Grow(PRInt32 aNewSize) = 0;
virtual PRInt32 Fill(nsresult* aErrorCode, nsIUnicharInputStream* aStream,
PRInt32 aKeep) = 0;
};
/// Factory method for nsIUnicharBuffer.
extern NS_BASE nsresult
NS_NewUnicharBuffer(nsIUnicharBuffer** aInstancePtrResult,
nsISupports* aOuter,
PRUint32 aBufferSize = 0);
#endif /* nsIUnicharBuffer_h___ */