X11/Xaw/AsciiSrcP.h

0001 /***********************************************************
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0003 Copyright 1987, 1988, 1994, 1998  The Open Group
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0005 Permission to use, copy, modify, distribute, and sell this software and its
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0023 in this Software without prior written authorization from The Open Group.
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0025
0026 Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
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0028                         All Rights Reserved
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0030 Permission to use, copy, modify, and distribute this software and its
0031 documentation for any purpose and without fee is hereby granted,
0032 provided that the above copyright notice appear in all copies and that
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0046 ******************************************************************/
0047
0048 /*
0049  * AsciiSrcP.h - Private Header for Ascii Text Source.
0050  *
0051  * This is the private header file for the Ascii Text Source.
0052  * It is intended to be used with the Text widget, the simplest way to use
0053  * this text source is to use the AsciiText Object.
0054  *
0055  * Date:    June 29, 1989
0056  *
0057  * By:      Chris D. Peterson
0058  *          MIT X Consortium
0059  *          kit@expo.lcs.mit.edu
0060  */
0061
0062 #ifndef _XawAsciiSrcP_h
0063 #define _XawAsciiSrcP_h
0064
0065 #include <X11/Xaw/TextSrcP.h>
0066 #include <X11/Xaw/AsciiSrc.h>
0067
0068 #ifdef L_tmpnam
0069 #define TMPSIZ L_tmpnam
0070 #else
0071 #ifdef PATH_MAX
0072 #define TMPSIZ PATH_MAX
0073 #else
0074 #define TMPSIZ 1024     /* bytes to allocate for tmpnam */
0075 #endif
0076 #endif
0077
0078 typedef struct _Piece {     /* Piece of the text file of BUFSIZ allocated
0079                    characters */
0080     char *text;         /* The text in this buffer */
0081     XawTextPosition used;   /* The number of characters of this buffer
0082                    that have been used */
0083     struct _Piece *prev, *next; /* linked list pointers */
0084 } Piece;
0085
0086 typedef struct _AsciiSrcClassPart {
0087     XtPointer extension;
0088 } AsciiSrcClassPart;
0089
0090 /* Full class record */
0091 typedef struct _AsciiSrcClassRec {
0092     ObjectClassPart     object_class;
0093     TextSrcClassPart    text_src_class;
0094     AsciiSrcClassPart   ascii_src_class;
0095 } AsciiSrcClassRec;
0096
0097 extern AsciiSrcClassRec asciiSrcClassRec;
0098
0099 /* New fields for the AsciiSrc object */
0100 typedef struct _AsciiSrcPart {
0101     /* resources */
0102     char *string;       /* either the string, or the
0103                    file name, depending upon the type */
0104     XawAsciiType type;      /* either string or disk */
0105     XawTextPosition piece_size; /* Size of text buffer for each piece */
0106     Boolean data_compression;   /* compress to minimum memory automatically
0107                    on save? */
0108 #ifdef OLDXAW
0109     XtCallbackList callback;
0110 #endif
0111     Boolean use_string_in_place;/* Use the string passed in place */
0112     int ascii_length;       /* length field for ascii string emulation */
0113
0114 #ifdef ASCII_DISK
0115     String filename;        /* name of file for Compatibility */
0116 #endif /* ASCII_DISK */
0117
0118     /* private */
0119     Boolean is_tempfile;    /* Is this a temporary file? */
0120 #ifdef OLDXAW
0121     Boolean changes;
0122 #endif
0123     Boolean allocated_string;   /* Have I allocated the
0124                    string in ascii_src->string? */
0125     XawTextPosition length; /* length of file */
0126     Piece *first_piece;     /* first piece of the text */
0127 #ifndef OLDXAW
0128     XtPointer pad[4];   /* for future use and keep binary compatibility */
0129 #endif
0130 } AsciiSrcPart;
0131
0132 /* instance record */
0133 typedef struct _AsciiSrcRec {
0134     ObjectPart    object;
0135     TextSrcPart   text_src;
0136     AsciiSrcPart  ascii_src;
0137 } AsciiSrcRec;
0138
0139 #endif /* _XawAsciiSrcP_h */