/***********************************************************

Copyright 1987, 1988, 1994, 1998  The Open Group

Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
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in this Software without prior written authorization from The Open Group.


Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.

                        All Rights Reserved

Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation, and that the name of Digital not be
used in advertising or publicity pertaining to distribution of the
software without specific, written prior permission.

DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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******************************************************************/

/*
 * AsciiSrcP.h - Private Header for Ascii Text Source.
 *
 * This is the private header file for the Ascii Text Source.
 * It is intended to be used with the Text widget, the simplest way to use
 * this text source is to use the AsciiText Object.
 *
 * Date:    June 29, 1989
 *
 * By:      Chris D. Peterson
 *          MIT X Consortium
 *          kit@expo.lcs.mit.edu
 */

#ifndef _XawAsciiSrcP_h
#define _XawAsciiSrcP_h

#include <X11/Xaw/TextSrcP.h>
#include <X11/Xaw/AsciiSrc.h>

#ifdef L_tmpnam
#define TMPSIZ L_tmpnam
#else
#ifdef PATH_MAX
#define TMPSIZ PATH_MAX
#else
#define TMPSIZ 1024		/* bytes to allocate for tmpnam */
#endif
#endif

typedef struct _Piece {		/* Piece of the text file of BUFSIZ allocated
				   characters */
    char *text;			/* The text in this buffer */
    XawTextPosition used;	/* The number of characters of this buffer
				   that have been used */
    struct _Piece *prev, *next;	/* linked list pointers */
} Piece;

typedef struct _AsciiSrcClassPart {
    XtPointer extension;
} AsciiSrcClassPart;

/* Full class record */
typedef struct _AsciiSrcClassRec {
    ObjectClassPart     object_class;
    TextSrcClassPart	text_src_class;
    AsciiSrcClassPart	ascii_src_class;
} AsciiSrcClassRec;

extern AsciiSrcClassRec asciiSrcClassRec;

/* New fields for the AsciiSrc object */
typedef struct _AsciiSrcPart {
    /* resources */
    char *string;		/* either the string, or the
				   file name, depending upon the type */
    XawAsciiType type;		/* either string or disk */
    XawTextPosition piece_size;	/* Size of text buffer for each piece */
    Boolean data_compression;	/* compress to minimum memory automatically
				   on save? */
#ifdef OLDXAW
    XtCallbackList callback;
#endif
    Boolean use_string_in_place;/* Use the string passed in place */
    int ascii_length;		/* length field for ascii string emulation */

#ifdef ASCII_DISK
    String filename;		/* name of file for Compatibility */
#endif /* ASCII_DISK */

    /* private */
    Boolean is_tempfile;	/* Is this a temporary file? */
#ifdef OLDXAW
    Boolean changes;
#endif
    Boolean allocated_string;	/* Have I allocated the
				   string in ascii_src->string? */
    XawTextPosition length;	/* length of file */
    Piece *first_piece;		/* first piece of the text */
#ifndef OLDXAW
    XtPointer pad[4];	/* for future use and keep binary compatibility */
#endif
} AsciiSrcPart;

/* instance record */
typedef struct _AsciiSrcRec {
    ObjectPart    object;
    TextSrcPart   text_src;
    AsciiSrcPart  ascii_src;
} AsciiSrcRec;

#endif /* _XawAsciiSrcP_h */