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/*
*
* Copyright (C) 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
*
*/
// -*- C++ -*-
/*
* Copyright (C) 1990,91 Silicon Graphics, Inc.
*
_______________________________________________________________________
______________ S I L I C O N G R A P H I C S I N C . ____________
|
| $Revision: 1.1.1.1 $
|
| Description:
| This file defines the SoByteStream class.
|
| Author(s): David Mott
|
______________ S I L I C O N G R A P H I C S I N C . ____________
_______________________________________________________________________
*/
#ifndef _SO_BYTE_STREAM_
#define _SO_BYTE_STREAM_
#include <Inventor/SbBasic.h>
class SoNode;
class SoPath;
class SoPathList;
//////////////////////////////////////////////////////////////////////////////
//
// Class: SoByteStream
//
// This class creates a byte stream representation of a scene graph,
// using the SoWriteAction to write to an in memory buffer. Byte streams
// are commonly used to transfer data, for instance during copy and paste.
//
//////////////////////////////////////////////////////////////////////////////
class SoByteStream {
public:
SoByteStream();
~SoByteStream();
// Convert the passed node, path, or path list into a byte stream.
// Caller may specify whether the byte stream is written in binary
// (TRUE) or ascii (FALSE) format. The converted data can be accessed
// through getData() and getNumBytes().
// C-api: name=convertNode
void convert(SoNode *node, SbBool binaryFormat = TRUE);
// C-api: name=convertPath
void convert(SoPath *path, SbBool binaryFormat = TRUE);
// C-api: name=convertPathList
void convert(SoPathList *pathList, SbBool binaryFormat = TRUE);
// Access the byte stream data
void * getData() { return data; }
uint32_t getNumBytes() { return numBytes; }
// Unconvert a byte stream back to a path list.
// This static routine performs an SoDB::read on the data,
// and returns a path list of the paths read in.
// C-api: name=unconvertStream
static SoPathList * unconvert(SoByteStream *byteStream);
// C-api: name=unconvertData
static SoPathList * unconvert(void *data, uint32_t numBytes);
SoEXTENDER public:
// This allows apps to store raw data here without converting
// an Inventor node, path, or path list. This sets isRaw to TRUE,
// and that data cannot be unconverted.
void copy(void *d, size_t len);
SbBool isRawData() const { return isRaw; }
private:
void *data;
uint32_t numBytes;
SbBool isRaw;
};
#endif // _SO_BYTE_STREAM_
|
