gecko-dev/layout/base/public/nsITextContent.h
1998-04-13 20:24:54 +00:00

49 lines
1.6 KiB
C++

/* -*- 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 nsITextContent_h___
#define nsITextContent_h___
#include "nslayout.h"
class nsString;
// IID for the nsITextContent interface
#define NS_ITEXTCONTENT_IID \
{ 0xdd0755d0, 0x944d, 0x11d1, \
{0x93, 0x23, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32} }
// Abstract interface for textual content. Note that this interface
// does not implement nsISupports (which means it's not transitive or
// reflexive). This is done for efficiency reasons.
class nsITextContent {
public:
/*
* Get the total length of the text content.
*/
virtual PRInt32 GetLength() = 0;
/*
* Copy a subrange of the text content into aBuf starting at aOffset
* for aCount characters. aBuf's length will be reset before the
* copy occurs and it's length upon return will reflect the amount
* of data copied.
*/
virtual void GetText(nsString& aBuf, PRInt32 aOffset, PRInt32 aCount) = 0;
};
#endif /* nsITextContent_h___ */