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dvifile.h
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1993-08-06
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6KB
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/* -*-C-*- dvifile.h */
/*-->dvifile*/
/**********************************************************************/
/****************************** dvifile *******************************/
/**********************************************************************/
/*--------------------------------------------------------------------*/
/* Modified for use with DVIDECW driver (30.06.89) */
/*--------------------------------------------------------------------*/
void
dvifile(argc,argv,filestr)
int argc; /* argument count */
char* argv[]; /* argument strings */
char* filestr; /* DVI filename to process */
{
#define PAGENUMBER(p) ((p) < 0 ? (page_count + 1 + (p)) : (p))
register INT16 i,j,m; /* loop indices */
register INT16 swap; /* swap storage */
INT16 m_begin,m_end,m_step; /* loop limits and increment */
INT16 list[3]; /* index list for sort */
char tempstr[MAXSTR]; /* temporary string storage */
/*
Establish the default font file search order. This is done here
instead of in initglob() or option(), because both could set
fontlist[].
By default, the search list contains names for the PK, GF, and PXL
font files; that order corresponds to increasing size (and
therefore, presumably, increasing processing cost) of font raster
information. This search order may be overridden at run time by
defining an alternate one in the environment variable FONTLIST; the
order of the strings "PK", "GF", and "PXL" in that variable
determines the search order, and letter case is NOT significant.
The substrings may be separated by zero or more arbitrary
characters, so the values "PK-GF-PXL", "PK GF PXL", "PKGFPXL",
"PK;GF;PXL", "PK/GF/PXL" are all acceptable, and all choose the
default search order. This flexibility in separator character
choice is occasioned by the requirement on some systems that the
environment variable have the syntax of a file name, or be a single
"word". If any substring is omitted, then that font will be
excluded from consideration. Thus, "GF" permits the use only of GF
font files.
The indexes gf_index, pk_index, and pxl_index are in -1 .. 2, and at
least one must be non-negative. A negative index excludes that font
file type from the search.
*/
/* Note that non-negative entries in list[] are UNIQUE. */
list[0] = gf_index = (INT16)strid2(fontlist,"GF");
list[1] = pk_index = (INT16)strid2(fontlist,"PK");
list[2] = pxl_index = (INT16)strid2(fontlist,"PXL");
for (i = 0; i < 3; ++i) /* put list in non-decreasing order */
for (j = i+1; j < 3; ++j)
if (list[i] > list[j])
{
swap = list[i];
list[i] = list[j];
list[j] = swap;
}
for (i = 0; i < 3; ++i) /* assign indexes 0,1,2 */
if (list[i] >= 0)
{
if (list[i] == gf_index)
gf_index = i;
else if (list[i] == pk_index)
pk_index = i;
else if (list[i] == pxl_index)
pxl_index = i;
}
if ((gf_index < 0) && (pk_index < 0) && (pxl_index < 0))
(void)fatal("dvifile(): FONTLIST does not define at least one of \
GF, PK, or PXL fonts");
(void)dviinit(filestr); /* initialize DVI file processing */
(void)devinit(argc,argv); /* initialize device output */
(void)readpost();
(void)FSEEK(dvifp, 14L, 0); /* position past preamble */
(void)getbytes(dvifp, tempstr,
(BYTE)nosignex(dvifp,(BYTE)1)); /* flush DVI comment */
cur_page_number = 0;
#if (HPLASERJET|HPJETPLUS|GOLDENDAWNGL100|POSTSCRIPT|IMPRESS|CANON_A2)
/* print pages in reverse order because of laser printer */
/* page stacking */
if (backwards)
{
m_begin = 1;
m_end = page_count;
m_step = 1;
}
else /* normal device order */
{
m_begin = page_count;
m_end = 1;
m_step = -1;
}
#else
/* NOT (HPLASERJET|HPJETPLUS|GOLDENDAWNGL100|POSTSCRIPT|IMPRESS|CANON_A2) */
/* print pages in forward order for most devices */
if (backwards)
{
m_begin = page_count;
m_end = 1;
m_step = -1;
}
else
{
m_begin = 1;
m_end = page_count;
m_step = 1;
}
#endif /* (HPLASERJET|HPJETPLUS|GOLDENDAWNGL100|POSTSCRIPT|IMPRESS|CANON_A2) */
for (i = 0; i < npage; ++i) /* make page numbers positive */
{ /* and order pairs non-decreasing */
page_begin[i] = PAGENUMBER(page_begin[i]);
page_end[i] = PAGENUMBER(page_end[i]);
if (page_begin[i] > page_end[i])
{
swap = page_begin[i];
page_begin[i] = page_end[i];
page_end[i] = swap;
}
}
#if (DECWINDOWS | MGR_OSK)
for (m = m_begin; ; m += m_step)
{
for (i = 0; i < npage; ++i) /* search page list for 1st page*/
if ( IN(page_begin[i],m,page_end[i]) &&
(((m - page_begin[i]) % page_step[i]) == 0) )
{
cur_page_number++; /* sequential page number 1..N */
cur_index = m-1; /* remember index globally */
mgr_main_loop(); /* We will never return here */
}
}
#else
for (m = m_begin; ; m += m_step)
{
for (i = 0; i < npage; ++i) /* search page list */
if ( IN(page_begin[i],m,page_end[i]) &&
(((m - page_begin[i]) % page_step[i]) == 0) )
{
if (!quiet) /* start progress report */
(void)fprintf(stderr,"[%d", m);
cur_page_number++;/* sequential page number 1..N */
cur_index = m-1; /* remember index globally */
prtpage(page_ptr[cur_index]);
if (!quiet) /* finish progress report */
(void)fprintf(stderr,"] ");
break;
}
if (m == m_end) /* exit loop after last page */
break;
}
(void)devterm(); /* terminate device output */
(void)dviterm(); /* terminate DVI file processing */
#endif
}