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|
/*@z24.c:Print Service:PrintInit()@*******************************************/
/* */
/* THE LOUT DOCUMENT FORMATTING SYSTEM (VERSION 3.10) */
/* COPYRIGHT (C) 1991, 1996 Jeffrey H. Kingston */
/* */
/* Jeffrey H. Kingston (jeff@cs.usyd.edu.au) */
/* Basser Department of Computer Science */
/* The University of Sydney 2006 */
/* AUSTRALIA */
/* */
/* This program is free software; you can redistribute it and/or modify */
/* it under the terms of the GNU General Public License as published by */
/* the Free Software Foundation; either version 1, or (at your option) */
/* any later version. */
/* */
/* This program 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 General Public License for more details. */
/* */
/* You should have received a copy of the GNU General Public License */
/* along with this program; if not, write to the Free Software */
/* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* */
/* FILE: z24.c */
/* MODULE: Print Service */
/* EXTERNS: PrintInit(), PrintBeforeFirst(), PrintBetween(), */
/* PrintWord(), PrintAfterLast(), CoordTranslate(), */
/* CoordRotate(), CoordScale(), SaveGraphicState(), */
/* RestoreGraphicState(), PrintGraphicObject(), */
/* DefineGraphicNames(), PrintGraphicInclude() */
/* */
/* This module implements the PostScript back end. */
/* */
/*****************************************************************************/
#include "externs"
#define StartUpResource "LoutStartUp"
#define DEFAULT_XHEIGHT 500
#define NO_FONT 0 /* actually stolen from z37.c */
#define NO_COLOUR 0
#define MAX_GS 50 /* maximum depth of graphics states */
#define printnum(x, fp) \
{ char buff[20]; register int i, y; \
if( x >= 0 ) y = x; \
else { y = -x; putc(CH_MINUS, fp); } \
i = 0; \
do { buff[i++] = numtodigitchar(y % 10); \
} while( (y = (y / 10)) > 0 ); \
do { --i; putc(buff[i], fp); \
} while( i ); \
}
static FILE *out_fp; /* output file */
/* these variables used by PLAINTEXT back end only */
static int hsize; /* horizontal size of page in chars */
static int vsize; /* vertical size of page in chars */
static FULL_CHAR *page; /* the page (two-dim array of chars) */
/* these types and variables used by POSTSCRIPT back end only */
typedef struct
{
FONT_NUM gs_font; /* font number of this state */
COLOUR_NUM gs_colour; /* colour number of this state */
BOOLEAN gs_cpexists; /* TRUE if a current point exists */
FULL_LENGTH gs_currenty; /* if cpexists, its y coordinate */
short gs_xheight2; /* of font exists, half xheight */
} GRAPHICS_STATE;
static GRAPHICS_STATE gs_stack[MAX_GS];/* graphics state stack */
static int gs_stack_top; /* top of graphics state stack */
static FONT_NUM currentfont; /* font of most recent atom */
static COLOUR_NUM currentcolour; /* colour of most recent atom */
static short currentxheight2;/* half xheight in current font */
static BOOLEAN cpexists; /* true if a current point exists */
static FULL_LENGTH currenty; /* if cpexists, its y coordinate */
static int wordcount; /* atoms printed since last newline */
static int pagecount; /* total number of pages printed */
static BOOLEAN prologue_done; /* TRUE after prologue is printed */
static OBJECT needs; /* Resource needs of included EPSFs */
static OBJECT supplied; /* Resources supplied by this file */
/*@::EightBitToPrintForm()@***************************************************/
/* */
/* static char *EightBitToPrintForm[] */
/* */
/* Given 8-bit character i, returns a string of characters that will be */
/* interpreted by PostScript as character i when read within a string. */
/* */
/* CHAR_OUT==1 Printable ASCII literal, others as escape sequences */
/* CHAR_OUT==2 Printable ISO-LATIN-1 literal, others escaped */
/* */
/*****************************************************************************/
static char *EightBitToPrintForm[] = {
#if CHAR_OUT==0
"", "\\001", "\\002", "\\003", "\\004", "\\005", "\\006", "\\007",
"\\010", "\\011", "\\012", "\\013", "\\014", "\\015", "\\016", "\\017",
"\\020", "\\021", "\\022", "\\023", "\\024", "\\025", "\\026", "\\027",
"\\030", "\\031", "\\032", "\\033", "\\034", "\\035", "\\036", "\\037",
" ", "!", "\"", "#", "$", "%", "&", "'",
"\\(", "\\)", "*", "+", ",", "-", ".", "/",
"0", "1", "2", "3", "4", "5", "6", "7",
"8", "9", ":", ";", "<", "=", ">", "?",
"@", "A", "B", "C", "D", "E", "F", "G",
"H", "I", "J", "K", "L", "M", "N", "O",
"P", "Q", "R", "S", "T", "U", "V", "W",
"X", "Y", "Z", "[", "\\\\", "]", "^", "_",
"`", "a", "b", "c", "d", "e", "f", "g",
"h", "i", "j", "k", "l", "m", "n", "o",
"p", "q", "r", "s", "t", "u", "v", "w",
"x", "y", "z", "{", "|", "}", "~", "\\177",
"\\200", "\\201", "\\202", "\\203", "\\204", "\\205", "\\206", "\\207",
"\\210", "\\211", "\\212", "\\213", "\\214", "\\215", "\\216", "\\217",
"\\220", "\\221", "\\222", "\\223", "\\224", "\\225", "\\226", "\\227",
"\\230", "\\231", "\\232", "\\233", "\\234", "\\235", "\\236", "\\237",
"\\240", "\\241", "\\242", "\\243", "\\244", "\\245", "\\246", "\\247",
"\\250", "\\251", "\\252", "\\253", "\\254", "\\255", "\\256", "\\257",
"\\260", "\\261", "\\262", "\\263", "\\264", "\\265", "\\266", "\\267",
"\\270", "\\271", "\\272", "\\273", "\\274", "\\275", "\\276", "\\277",
"\\300", "\\301", "\\302", "\\303", "\\304", "\\305", "\\306", "\\307",
"\\310", "\\311", "\\312", "\\313", "\\314", "\\315", "\\316", "\\317",
"\\320", "\\321", "\\322", "\\323", "\\324", "\\325", "\\326", "\\327",
"\\330", "\\331", "\\332", "\\333", "\\334", "\\335", "\\336", "\\337",
"\\340", "\\341", "\\342", "\\343", "\\344", "\\345", "\\346", "\\347",
"\\350", "\\351", "\\352", "\\353", "\\354", "\\355", "\\356", "\\357",
"\\360", "\\361", "\\362", "\\363", "\\364", "\\365", "\\366", "\\367",
"\\370", "\\371", "\\372", "\\373", "\\374", "\\375", "\\376", "\\377"
#else
#if CHAR_OUT==1
"", "\\001", "\\002", "\\003", "\\004", "\\005", "\\006", "\\007",
"\\010", "\\011", "\\012", "\\013", "\\014", "\\015", "\\016", "\\017",
"\\020", "\\021", "\\022", "\\023", "\\024", "\\025", "\\026", "\\027",
"\\030", "\\031", "\\032", "\\033", "\\034", "\\035", "\\036", "\\037",
" ", "!", "\"", "#", "$", "%", "&", "'",
"\\(", "\\)", "*", "+", ",", "-", ".", "/",
"0", "1", "2", "3", "4", "5", "6", "7",
"8", "9", ":", ";", "<", "=", ">", "?",
"@", "A", "B", "C", "D", "E", "F", "G",
"H", "I", "J", "K", "L", "M", "N", "O",
"P", "Q", "R", "S", "T", "U", "V", "W",
"X", "Y", "Z", "[", "\\\\", "]", "^", "_",
"`", "a", "b", "c", "d", "e", "f", "g",
"h", "i", "j", "k", "l", "m", "n", "o",
"p", "q", "r", "s", "t", "u", "v", "w",
"x", "y", "z", "{", "|", "}", "~", "\\177",
"\\200", "\\201", "\\202", "\\203", "\\204", "\\205", "\\206", "\\207",
"\\210", "\\211", "\\212", "\\213", "\\214", "\\215", "\\216", "\\217",
"\220", "\221", "\222", "\223", "\224", "\225", "\226", "\227",
"\230", "\\231", "\232", "\233", "\\234", "\235", "\236", "\237",
"\240", "\241", "\242", "\243", "\244", "\245", "\246", "\247",
"\250", "\251", "\252", "\253", "\254", "\255", "\256", "\257",
"\260", "\261", "\262", "\263", "\264", "\265", "\266", "\267",
"\270", "\271", "\272", "\273", "\274", "\275", "\276", "\277",
"\300", "\301", "\302", "\303", "\304", "\305", "\306", "\307",
"\310", "\311", "\312", "\313", "\314", "\315", "\316", "\317",
"\320", "\321", "\322", "\323", "\324", "\325", "\326", "\327",
"\330", "\331", "\332", "\333", "\334", "\335", "\336", "\337",
"\340", "\341", "\342", "\343", "\344", "\345", "\346", "\347",
"\350", "\351", "\352", "\353", "\354", "\355", "\356", "\357",
"\360", "\361", "\362", "\363", "\364", "\365", "\366", "\367",
"\370", "\371", "\372", "\373", "\374", "\375", "\376", "\377"
#else
If you are trying to compile this you have the wrong CHAR_OUT value!
#endif
#endif
};
/*****************************************************************************/
/* */
/* PrintInit(file_ptr) */
/* */
/* Initialise this module. Output is to go to FILE file_ptr. */
/* */
/*****************************************************************************/
void PrintInit(FILE *file_ptr)
{ debug0(DGP, DD, "PrintInit()");
out_fp = file_ptr; prologue_done = FALSE;
gs_stack_top = -1;
currentfont = NO_FONT;
currentcolour = NO_COLOUR;
cpexists = FALSE;
wordcount = pagecount = 0;
New(needs, ACAT);
New(supplied, ACAT);
debug0(DGP, DD, "PrintInit returning.");
}
/*@::PrintBeforeFirst@********************************************************/
/* */
/* PrintBeforeFirst(h, v, label) */
/* */
/* This procedure is called just before starting to print the first */
/* component of the output. Its size is h, v, and label is the page */
/* label to attach to the %%Page comment. */
/* */
/* If BackEnd is PLAINTEXT, this procedure obtains a two-dimensional array */
/* of characters large enough to hold the first component, and clears it. */
/* */
/* If BackEnd is POSTSCRIPT, this procedure generates the PostScript */
/* prologue, augmented with any @PrependGraphic or @SysPrependGraphic */
/* files specified by the user. The following PostScript operators are */
/* defined: */
/* */
/* scale_factor fnt scale and set font */
/* x_coordinate x move to x_coordinate, current y coordinate */
/* string s show string */
/* number in result is number inches */
/* number cm result is number centimetres */
/* number pt result is number points */
/* number sp result is number spaces */
/* number vs result is number vspaces */
/* number ft result is number font-sizes */
/* */
/* as well as LoutGraphic, for use with the @Graphic operator: */
/* */
/* xsize ysize xmark ymark fr vs sp LoutGraphic - */
/* */
/* Define xmark, ymark, xsize, ysize to be the positions of */
/* these features of x, and define symbols ft, vs and sp */
/* to be the current font size, line separation, and space width. */
/* */
/*****************************************************************************/
void PrintBeforeFirst(FULL_LENGTH h, FULL_LENGTH v, FULL_CHAR *label)
{ FILE_NUM fnum; int i, j; FULL_CHAR *p;
debug2(DGP, DD, "PrintBeforeFirst(%d, %d)", h, v);
switch( BackEnd )
{
case PLAINTEXT:
/* get a new page[] and clear it */
hsize = ceiling(h, PlainCharWidth);
vsize = ceiling(v, PlainCharHeight);
debug2(DGP, DD, " PlainCharWidth: %d; PlainCharHeight: %d",
PlainCharWidth, PlainCharHeight);
ifdebug(DMA, D, DebugRegisterUsage(MEM_PAGES, 1,
hsize * vsize * sizeof(FULL_CHAR)));
debug2(DGP, DD, " PrintBeforeFirst allocating %d by %d", hsize, vsize);
page = (FULL_CHAR *) malloc(hsize * vsize * sizeof(FULL_CHAR));
for( i = 0; i < vsize; i++ )
for( j = 0; j < hsize; j++ )
page[i*hsize + j] = ' ';
break;
case POSTSCRIPT:
/* print header comments for PostScript DSC 3.0 output */
if( Encapsulated )
fprintf(out_fp, "%%!PS-Adobe-3.0 EPSF-3.0\n");
else
fprintf(out_fp, "%%!PS-Adobe-3.0\n");
fprintf(out_fp, "%%%%Creator: %s\n", LOUT_VERSION);
fprintf(out_fp, "%%%%CreationDate: %s", TimeString());
fprintf(out_fp, "%%%%DocumentData: Binary\n");
fprintf(out_fp, "%%%%DocumentNeededResources: (atend)\n");
fprintf(out_fp, "%%%%DocumentMedia: Plain %d %d 0 white ()\n", h/PT, v/PT);
fprintf(out_fp, "%%%%DocumentSuppliedResources: (atend)\n");
fprintf(out_fp, "%%%%Pages: (atend)\n");
fprintf(out_fp, "%%%%BoundingBox: 0 0 %d %d\n", h/PT, v/PT);
fprintf(out_fp, "%%%%EndComments\n\n");
/* print procedure definitions part of header */
fprintf(out_fp, "%%%%BeginProlog\n");
fprintf(out_fp, "%%%%BeginResource: procset %s\n", StartUpResource);
fprintf(out_fp, "/m { 3 1 roll moveto show } bind def\n");
fprintf(out_fp, "/s { exch currentpoint exch pop moveto show } bind def\n");
fprintf(out_fp, "/k { exch neg 0 rmoveto show } bind def\n");
fprintf(out_fp, "/ul { gsave setlinewidth dup 3 1 roll\n");
fprintf(out_fp, " moveto lineto stroke grestore } bind def\n");
fprintf(out_fp, "/in { %d mul } def\n", IN);
fprintf(out_fp, "/cm { %d mul } def\n", CM);
fprintf(out_fp, "/pt { %d mul } def\n", PT);
fprintf(out_fp, "/em { %d mul } def\n", EM);
fprintf(out_fp, "/sp { louts mul } def\n");
fprintf(out_fp, "/vs { loutv mul } def\n");
fprintf(out_fp, "/ft { loutf mul } def\n");
fprintf(out_fp, "/dg { } def\n\n");
fputs("/LoutGraphic {\n", out_fp);
fputs(" /louts exch def\n", out_fp);
fputs(" /loutv exch def\n", out_fp);
fputs(" /loutf exch def\n", out_fp);
fputs(" /ymark exch def\n", out_fp);
fputs(" /xmark exch def\n", out_fp);
fputs(" /ysize exch def\n", out_fp);
fputs(" /xsize exch def\n} def\n\n", out_fp);
fputs("/LoutGr2 { gsave translate LoutGraphic gsave } def\n\n", out_fp);
/* print definition used by Lout output to recode fonts */
/* adapted from PostScript Language Reference Manual (2nd Ed), p. 275 */
/* usage: /<fullname> <encodingvector> /<originalname> LoutRecode - */
fputs("/LoutFont\n", out_fp);
fputs("{ findfont exch scalefont setfont\n", out_fp);
fputs("} bind def\n\n", out_fp);
fputs("/LoutRecode {\n", out_fp);
fputs(" { findfont dup length dict begin\n", out_fp);
fputs(" {1 index /FID ne {def} {pop pop} ifelse} forall\n", out_fp);
fputs(" /Encoding exch def\n", out_fp);
fputs(" currentdict end definefont pop\n", out_fp);
fputs(" }\n", out_fp);
fputs(" stopped pop\n", out_fp);
fputs("} bind def\n\n", out_fp);
/* print definitions used by Lout output when including EPSF files */
/* copied from PostScript Language Reference Manual (2nd Ed.), p. 726 */
fputs("/BeginEPSF {\n", out_fp);
fputs(" /LoutEPSFState save def\n", out_fp);
fputs(" /dict_count countdictstack def\n", out_fp);
fputs(" /op_count count 1 sub def\n", out_fp);
fputs(" userdict begin\n", out_fp);
fputs(" /showpage { } def\n", out_fp);
fputs(" 0 setgray 0 setlinecap\n", out_fp);
fputs(" 1 setlinewidth 0 setlinejoin\n", out_fp);
fputs(" 10 setmiterlimit [] 0 setdash newpath\n", out_fp);
fputs(" /languagelevel where\n", out_fp);
fputs(" { pop languagelevel\n", out_fp);
fputs(" 1 ne\n", out_fp);
fputs(" { false setstrokeadjust false setoverprint\n", out_fp);
fputs(" } if\n", out_fp);
fputs(" } if\n", out_fp);
fputs("} bind def\n\n", out_fp);
fputs("/EndEPSF {\n", out_fp);
fputs(" count op_count sub { pop } repeat\n", out_fp);
fputs(" countdictstack dict_count sub { end } repeat\n", out_fp);
fputs(" LoutEPSFState restore\n", out_fp);
fputs("} bind def\n", out_fp);
fputs("%%EndResource\n\n", out_fp);
/* print encoding vectors as resources */
MapPrintEncodings(out_fp);
/* print prepend files (assumed to be organized as DSC 3.0 Resources) */
for( fnum=FirstFile(PREPEND_FILE); fnum!=NO_FILE; fnum=NextFile(fnum) )
{ FULL_CHAR buff[MAX_BUFF]; FILE *fp;
if( (fp = OpenFile(fnum, FALSE, FALSE)) == null )
Error(24, 1, "cannot open %s file %s",
WARN, PosOfFile(fnum), KW_PREPEND, FileName(fnum));
else if( StringFGets(buff, MAX_BUFF, fp) == NULL )
Error(24, 2, "%s file %s is empty",
WARN, PosOfFile(fnum), KW_PREPEND, FileName(fnum));
else
{
if( StringBeginsWith(buff, AsciiToFull("%%BeginResource:")) )
{ OBJECT tmp;
tmp = MakeWord(WORD, &buff[strlen("%%BeginResource:")], no_fpos);
Link(supplied, tmp);
}
else
Error(24, 3, "%s file %s lacks PostScript BeginResource comment",
WARN, PosOfFile(fnum), KW_PREPEND, FileName(fnum));
StringFPuts(buff, out_fp);
fprintf(out_fp, "%% %s file %s\n", KW_PREPEND, FileName(fnum));
while( StringFGets(buff, MAX_BUFF, fp) != NULL )
StringFPuts(buff, out_fp);
fprintf(out_fp, "\n");
fclose(fp);
}
}
fputs("%%EndProlog\n\n", out_fp);
fputs("%%BeginSetup\n", out_fp);
FontPrintPageSetup(out_fp);
fputs("%%EndSetup\n\n", out_fp);
fprintf(out_fp, "%%%%Page: ");
for( p = label; *p != '\0'; p++ )
fputs(EightBitToPrintForm[*p], out_fp);
fprintf(out_fp, " %d\n", ++pagecount);
fprintf(out_fp, "%%%%BeginPageSetup\n");
FontPrintPageResources(out_fp);
FontAdvanceCurrentPage();
fprintf(out_fp, "/pgsave save def\n");
fprintf(out_fp, "%.4f dup scale %d setlinewidth\n", 1.0 / PT, PT/2);
fprintf(out_fp, "%%%%EndPageSetup\n\n");
break;
} /* end switch */
prologue_done = TRUE;
} /* end PrintBeforeFirst */
/*@::PrintBetween()@**********************************************************/
/* */
/* PrintBetween(h, v, label) */
/* */
/* Start a new output component, of size h by v; label is the page label */
/* to attach to the %%Page comment. */
/* */
/*****************************************************************************/
void PrintBetween(FULL_LENGTH h, FULL_LENGTH v, FULL_CHAR *label)
{ int new_hsize, new_vsize, i, j, jmax; FULL_CHAR *p;
debug2(DGP, DD, "PrintBetween(%d, %d)", h, v);
switch( BackEnd )
{
case PLAINTEXT:
/* print the page that has just ended */
ifdebug(DGP, D,
putc('+', out_fp);
for( j = 0; j < hsize; j++ ) putc('-', out_fp);
putc('+', out_fp);
putc('\n', out_fp);
);
for( i = vsize - 1; i >= 0; i-- )
{ ifdebug(DGP, D, putc('|', out_fp));
for( jmax = hsize-1; jmax >= 0 && page[i*hsize+jmax] == ' '; jmax--);
ifdebug(DGP, D, jmax = hsize - 1);
for( j = 0; j <= jmax; j++ )
putc(page[i*hsize + j], out_fp);
ifdebug(DGP, D, putc('|', out_fp));
putc('\n', out_fp);
}
ifdebug(DGP, D,
putc('+', out_fp);
for( j = 0; j < hsize; j++ ) putc('-', out_fp);
putc('+', out_fp);
putc('\n', out_fp);
);
/* separate the page from the next one with a form-feed if required */
if( PlainFormFeed ) putc('\f', out_fp);
/* if page size has changed, get a new page[] array */
new_hsize = ceiling(h, PlainCharWidth);
new_vsize = ceiling(v, PlainCharHeight);
if( new_hsize != hsize || new_vsize != vsize )
{
ifdebug(DMA, D, DebugRegisterUsage(MEM_PAGES, -1,
-hsize * vsize * sizeof(FULL_CHAR)));
free(page);
hsize = new_hsize;
vsize = new_vsize;
debug2(DGP, DD, " PrintBetween allocating %d by %d", hsize, vsize);
ifdebug(DMA, D, DebugRegisterUsage(MEM_PAGES, 1,
hsize * vsize * sizeof(FULL_CHAR)));
page = (FULL_CHAR *) malloc(hsize * vsize * sizeof(FULL_CHAR));
}
/* clear page[] for the new page just beginning */
for( i = 0; i < vsize; i++ )
for( j = 0; j < hsize; j++ )
page[i*hsize + j] = ' ';
break;
case POSTSCRIPT:
fprintf(out_fp, "\npgsave restore\nshowpage\n");
gs_stack_top = 0;
cpexists = FALSE;
currentfont = NO_FONT;
currentcolour = NO_COLOUR;
if( Encapsulated )
{ PrintAfterLast();
Error(24, 4, "truncating -EPS document at end of first page",
FATAL, no_fpos);
}
fprintf(out_fp, "\n%%%%Page: ");
for( p = label; *p != '\0'; p++ )
fputs(EightBitToPrintForm[*p], out_fp);
fprintf(out_fp, " %d\n", ++pagecount);
fprintf(out_fp, "%%%%BeginPageSetup\n");
FontPrintPageResources(out_fp);
fprintf(out_fp, "/pgsave save def\n");
FontPrintPageSetup(out_fp);
FontAdvanceCurrentPage();
fprintf(out_fp, "%.4f dup scale %d setlinewidth\n", 1.0 / PT, PT/2);
fprintf(out_fp, "%%%%EndPageSetup\n");
wordcount = 0;
break;
} /* end switch */
} /* end PrintBetween */
/*****************************************************************************/
/* */
/* KernLength(fnum, ch1, ch2, res) */
/* */
/* Set res to the kern length between ch1 and ch2 in font fnum, or 0 if */
/* none. */
/* */
/*****************************************************************************/
#define KernLength(fnum, mp, ch1, ch2, res) \
{ int ua_ch1 = mp[ch1]; \
int ua_ch2 = mp[ch2]; \
int i = finfo[fnum].kern_table[ua_ch1], j; \
if( i == 0 ) res = 0; \
else \
{ FULL_CHAR *kc = finfo[fnum].kern_chars; \
for( j = i; kc[j] > ua_ch2; j++ ); \
res = (kc[j] == ua_ch2) ? \
finfo[fnum].kern_sizes[finfo[fnum].kern_value[j]] : 0; \
} \
} /* end KernLength */
/*@::PrintWord()@*************************************************************/
/* */
/* PrintWord(x, hpos, vpos) */
/* */
/* Print non-empty word x; its marks cross at the point (hpos, vpos). */
/* */
/*****************************************************************************/
void PrintWord(OBJECT x, int hpos, int vpos)
{ FULL_CHAR *p, *q, *a, *b, *lig, *unacc;
int i, h, v, ksize; char command; MAPPING m;
debug5(DGP, DD, "PrintWord( %s, %d, %d ) font %d colour %d", string(x),
hpos, vpos, word_font(x), word_colour(x));
switch( BackEnd )
{
case PLAINTEXT:
h = ((float) hpos / PlainCharWidth) + 0.5;
/*** buggy; mark is already halfway up the word ***
v = ((float) vpos / PlainCharHeight) + 0.5;
*** */
v = ((float) vpos / PlainCharHeight);
debug3(DGP, D, "PrintWord(%s at h = %d, v = %d)", string(x), h, v);
p = &page[v*hsize + h];
for( i = 0; string(x)[i] != '\0'; i++ )
*p++ = string(x)[i];
break;
case POSTSCRIPT:
/* if font is different to previous word then print change */
if( word_font(x) != currentfont )
{ currentfont = word_font(x);
currentxheight2 = FontHalfXHeight(currentfont);
fprintf(out_fp, "%hd %s", FontSize(currentfont, x),
FontName(currentfont));
if( ++wordcount >= 5 )
{ fputs("\n", out_fp);
wordcount = 0;
}
else fputs(" ", out_fp);
}
/* if colour is different to previous word then print change */
if( word_colour(x) != currentcolour )
{ currentcolour = word_colour(x);
if( currentcolour > 0 )
{ fprintf(out_fp, "%s", ColourCommand(currentcolour));
if( ++wordcount >= 5 )
{ fputs("\n", out_fp);
wordcount = 0;
}
else fputs(" ", out_fp);
}
}
/* move to coordinate of x */
debug1(DGP, DDD, " currentxheight2 = %d", currentxheight2);
vpos = vpos - currentxheight2;
if( cpexists && currenty == vpos )
{ printnum(hpos, out_fp);
command = 's';
}
else
{ currenty = vpos;
printnum(hpos, out_fp);
fputs(" ", out_fp);
printnum(currenty, out_fp);
command = 'm';
cpexists = TRUE;
}
/* convert ligature sequences into ligature characters */
lig = finfo[word_font(x)].lig_table;
p = q = string(x);
do
{
/* check for missing glyph (lig[] == 1) or ligatures (lig[] > 1) */
if( lig[*q++ = *p++] )
{
if( lig[*(q-1)] == 1 ) continue;
else
{ a = &lig[ lig[*(p-1)] + MAX_CHARS ];
while( *a++ == *(p-1) )
{ b = p;
while( *a == *b && *(a+1) != '\0' && *b != '\0' ) a++, b++;
if( *(a+1) == '\0' )
{ *(q-1) = *a;
p = b;
break;
}
else
{ while( *++a );
a++;
}
}
}
}
} while( *p );
*q = '\0';
/* show string(x) */
fputs("(", out_fp);
p = string(x);
fputs(EightBitToPrintForm[*p], out_fp);
m = font_mapping(finfo[word_font(x)].font_table);
unacc = MapTable[m]->map[MAP_UNACCENTED];
/* acc = MapTable[m]->map[MAP_ACCENT]; */
for( p++; *p; p++ )
{ KernLength(word_font(x), unacc, *(p-1), *p, ksize);
if( ksize != 0 )
{ fprintf(out_fp, ")%c %d(", command, -ksize);
++wordcount;
command = 'k';
}
fputs(EightBitToPrintForm[*p], out_fp);
}
if( ++wordcount >= 5 )
{ fprintf(out_fp, ")%c\n", command);
wordcount = 0;
}
else fprintf(out_fp, ")%c ", command);
break;
} /* end switch */
debug0(DGP, DDD, "PrintWord returning");
} /* end PrintWord */
/*****************************************************************************/
/* */
/* PrintUnderline(fnum, xstart, xstop, ymk) */
/* */
/* Draw an underline suitable for font fnum, from xstart to xstop at the */
/* appropriate distance below mark ymk. */
/* */
/*****************************************************************************/
void PrintUnderline(FONT_NUM fnum, FULL_LENGTH xstart, FULL_LENGTH xstop,
FULL_LENGTH ymk)
{
debug4(DGP, DD, "PrintUnderline(fnum %d, xstart %s, xstop %s, ymk %s )",
fnum, EchoLength(xstart), EchoLength(xstop), EchoLength(ymk));
switch( BackEnd )
{
case PLAINTEXT:
/* do nothing */
break;
case POSTSCRIPT:
fprintf(out_fp, "%d %d %d %d ul\n", xstart, xstop,
ymk - finfo[fnum].underline_pos, finfo[fnum].underline_thick);
break;
}
debug0(DGP, DD, "PrintUnderline returning.");
} /* end PrintUnderline */
/*@::PrintAfterLast(), CoordTranslate()@**************************************/
/* */
/* PrintAfterLast() */
/* */
/* Clean up this module and close output stream. */
/* */
/*****************************************************************************/
void PrintAfterLast(void)
{ OBJECT x, link; BOOLEAN first_need; int i, j, jmax;
if( prologue_done )
{
switch( BackEnd )
{
case PLAINTEXT:
/* print the page that has just ended (exists since prologue_done) */
ifdebug(DGP, D,
putc('+', out_fp);
for( j = 0; j < hsize; j++ ) putc('-', out_fp);
putc('+', out_fp);
putc('\n', out_fp);
);
for( i = vsize - 1; i >= 0; i-- )
{ ifdebug(DGP, D, putc('|', out_fp));
for( jmax = hsize-1; jmax >= 0 && page[i*hsize+jmax] == ' '; jmax--);
ifdebug(DGP, D, jmax = hsize - 1);
for( j = 0; j <= jmax; j++ )
putc(page[i*hsize + j], out_fp);
ifdebug(DGP, D, putc('|', out_fp));
putc('\n', out_fp);
}
ifdebug(DGP, D,
putc('+', out_fp);
for( j = 0; j < hsize; j++ ) putc('-', out_fp);
putc('+', out_fp);
putc('\n', out_fp);
);
break;
case POSTSCRIPT:
fprintf(out_fp, "\npgsave restore\nshowpage\n");
fprintf(out_fp, "\n%%%%Trailer\n");
/* print resource requirements (DSC 3.0 version) - fonts */
first_need = FontNeeded(out_fp);
/* print resource requirements (DSC 3.0 version) - included EPSFs */
for( link = Down(needs); link != needs; link = NextDown(link) )
{ Child(x, link);
assert(is_word(type(x)), "PrintAfterLast: needs!" );
fprintf(out_fp, "%s %s",
first_need ? "%%DocumentNeededResources:" : "%%+", string(x));
first_need = FALSE;
}
/* print resources supplied */
fprintf(out_fp,
"%%%%DocumentSuppliedResources: procset %s\n", StartUpResource);
for( link = Down(supplied); link != supplied; link = NextDown(link) )
{ Child(x, link);
fprintf(out_fp, "%%%%+ %s", string(x));
}
MapPrintResources(out_fp);
fprintf(out_fp, "%%%%Pages: %d\n", pagecount);
fprintf(out_fp, "%%%%EOF\n");
break;
} /* end switch */
} /* end if prologue_done */
} /* end PrintAfterLast */
/*****************************************************************************/
/* */
/* CoordTranslate(xdist, ydist) */
/* */
/* Translate coordinate system by the given x and y distances. */
/* */
/*****************************************************************************/
void CoordTranslate(FULL_LENGTH xdist, FULL_LENGTH ydist)
{ debug2(DRS,D,"CoordTranslate(%s, %s)",
EchoLength(xdist), EchoLength(ydist));
assert( BackEnd == POSTSCRIPT, "CoordTranslate: BackEnd!" );
fprintf(out_fp, "%d %d translate\n", xdist, ydist);
cpexists = FALSE;
/***
currentfont = NO_FONT;
currentcolour = NO_COLOUR;
***/
debug0(DRS, D, "CoordTranslate returning.");
} /* end CoordTranslate */
/*@::CoordRotate(), CoordScale(), SaveGraphicsState(), etc.@******************/
/* */
/* CoordRotate(amount) */
/* */
/* Rotate coordinate system by given amount (in internal DG units) */
/* */
/*****************************************************************************/
void CoordRotate(FULL_LENGTH amount)
{ debug1(DRS, D, "CoordRotate(%.1f degrees)", (float) amount / DG);
assert( BackEnd == POSTSCRIPT, "CoordRotate: BackEnd!" );
fprintf(out_fp, "%.4f rotate\n", (float) amount / DG);
cpexists = FALSE;
/***
currentfont = NO_FONT;
currentcolour = NO_COLOUR;
***/
debug0(DRS, D, "CoordRotate returning.");
} /* end CoordRotate */
/*****************************************************************************/
/* */
/* CoordScale(ratio, dim) */
/* */
/* Scale coordinate system by ratio in the given dimension. */
/* */
/*****************************************************************************/
void CoordScale(float hfactor, float vfactor)
{
#if DEBUG_ON
char buff[20];
#endif
assert( BackEnd == POSTSCRIPT, "CoordScale: BackEnd!" );
ifdebug(DRS, D, sprintf(buff, "%.3f, %.3f", hfactor, vfactor));
debug1(DRS, D, "CoordScale(%s)", buff);
fprintf(out_fp, "%.4f %.4f scale\n", hfactor, vfactor);
cpexists = FALSE;
/***
currentfont = NO_FONT;
currentcolour = NO_COLOUR;
***/
debug0(DRS, D, "CoordScale returning.");
} /* end CoordScale */
/*****************************************************************************/
/* */
/* SaveGraphicState(x) */
/* */
/* Save current coord system on stack for later restoration. */
/* Object x is just for error reporting, not really used at all. */
/* */
/*****************************************************************************/
void SaveGraphicState(OBJECT x)
{ debug0(DRS, D, "SaveGraphicState()");
assert( BackEnd == POSTSCRIPT, "SaveGraphicState: BackEnd!" );
fprintf(out_fp, "gsave\n");
gs_stack_top++;
if( gs_stack_top >= MAX_GS )
Error(24, 9, "rotations, graphics etc. too deeply nested (max is %d)",
FATAL, &fpos(x), MAX_GS);
gs_stack[gs_stack_top].gs_font = currentfont;
gs_stack[gs_stack_top].gs_colour = currentcolour;
gs_stack[gs_stack_top].gs_cpexists = cpexists;
gs_stack[gs_stack_top].gs_currenty = currenty;
gs_stack[gs_stack_top].gs_xheight2 = currentxheight2;
debug0(DRS, D, "SaveGraphicState returning.");
} /* end SaveGraphicState */
/*****************************************************************************/
/* */
/* RestoreGraphicState() */
/* */
/* Restore previously saved coordinate system. NB we normally assume that */
/* no white space is needed before any item of output, but since this */
/* procedure is sometimes called immediately after PrintGraphicObject(), */
/* which does not append a concluding space, we prepend one here. */
/* */
/*****************************************************************************/
void RestoreGraphicState(void)
{ debug0(DRS, D, "RestoreGraphicState()");
assert( BackEnd == POSTSCRIPT, "RestoreGraphicState: BackEnd!" );
fprintf(out_fp, "\ngrestore\n");
currentfont = gs_stack[gs_stack_top].gs_font;
currentcolour = gs_stack[gs_stack_top].gs_colour;
cpexists = gs_stack[gs_stack_top].gs_cpexists;
currenty = gs_stack[gs_stack_top].gs_currenty;
currentxheight2 = gs_stack[gs_stack_top].gs_xheight2;
gs_stack_top--;
/* ***
cpexists = FALSE;
currentfont = NO_FONT;
currentcolour = NO_COLOUR;
*** */
debug0(DRS, D, "RestoreGraphicState returning.");
} /* end RestoreGraphicState */
/*@::PrintGraphicObject(), DefineGraphicNames()@******************************/
/* */
/* PrintGraphicObject(x) */
/* */
/* Print object x on out_fp */
/* */
/*****************************************************************************/
void PrintGraphicObject(OBJECT x)
{ OBJECT y, link;
assert( BackEnd == POSTSCRIPT, "PrintGraphicObject: BackEnd!" );
switch( type(x) )
{
case WORD:
case QWORD:
StringFPuts(string(x), out_fp);
break;
case ACAT:
for( link = Down(x); link != x; link = NextDown(link) )
{ Child(y, link);
if( type(y) == GAP_OBJ )
{ if( vspace(y) > 0 ) fputs("\n", out_fp);
else if( hspace(y) > 0 ) fputs(" ", out_fp);
}
else if( is_word(type(y)) || type(y) == ACAT ) PrintGraphicObject(y);
else if( type(y) != WIDE && !is_index(type(y)) )
/* @Wide, indexes are sometimes inserted by Manifest */
{ Error(24, 5, "error in left parameter of %s",
WARN, &fpos(x), KW_GRAPHIC);
debug1(DGP, D, " type(y) = %s, y =", Image(type(y)));
ifdebug(DGP, D, DebugObject(y));
}
}
break;
default:
Error(24, 6, "error in left parameter of %s", WARN, &fpos(x), KW_GRAPHIC);
debug1(DGP, D, " type(x) = %s, x =", Image(type(x)));
ifdebug(DGP, D, DebugObject(x));
break;
}
} /* end PrintGraphicObject */
/*****************************************************************************/
/* */
/* DefineGraphicNames(x) */
/* */
/* Generate PostScript for xsize, ysize etc. names of graphic object. */
/* */
/*****************************************************************************/
void DefineGraphicNames(OBJECT x)
{ assert( type(x) == GRAPHIC, "PrintGraphic: type(x) != GRAPHIC!" );
assert( BackEnd == POSTSCRIPT, "DefineGraphicNames: BackEnd!" );
debug1(DRS, D, "DefineGraphicNames( %s )", EchoObject(x));
debug1(DRS, DD, " style = %s", EchoStyle(&save_style(x)));
/* if font is different to previous word then print change */
if( font(save_style(x)) != currentfont )
{ currentfont = font(save_style(x));
if( currentfont > 0 )
{ currentxheight2 = FontHalfXHeight(currentfont);
fprintf(out_fp, "%hd %s ", FontSize(currentfont, x),
FontName(currentfont));
}
}
/* if colour is different to previous word then print change */
if( colour(save_style(x)) != currentcolour )
{ currentcolour = colour(save_style(x));
if( currentcolour > 0 )
{ fprintf(out_fp, "%s ", ColourCommand(currentcolour));
}
}
fprintf(out_fp, "%d %d %d %d %d %d %d LoutGraphic\n",
size(x, COLM), size(x, ROWM), back(x, COLM), fwd(x, ROWM),
currentfont <= 0 ? 12*PT : FontSize(currentfont, x),
width(line_gap(save_style(x))), width(space_gap(save_style(x))));
debug0(DRS, D, "DefineGraphicNames returning.");
} /* end DefineGraphicNames */
/*****************************************************************************/
/* */
/* SaveTranslateDefineSave(x, xdist, ydist) */
/* */
/* Equivalent to the sequence of calls */
/* */
/* SaveGraphicState(x) */
/* CoordTranslate(xdist, ydist) */
/* DefineGraphicNames(x) */
/* SaveGraphicState(x) */
/* */
/* but generates less PostScript. */
/* */
/*****************************************************************************/
void SaveTranslateDefineSave(OBJECT x, FULL_LENGTH xdist, FULL_LENGTH ydist)
{
if( gs_stack_top >= MAX_GS - 1 || font(save_style(x)) != currentfont ||
colour(save_style(x))!=currentcolour )
{
/* do it bit by bit, will be rare anyway */
SaveGraphicState(x);
CoordTranslate(xdist, ydist);
DefineGraphicNames(x);
SaveGraphicState(x);
}
else
{
/* no font or colour changes, no stack overflow, so can optimize */
/* from Save */
gs_stack_top++;
gs_stack[gs_stack_top].gs_font = currentfont;
gs_stack[gs_stack_top].gs_colour = currentcolour;
gs_stack[gs_stack_top].gs_cpexists = cpexists;
gs_stack[gs_stack_top].gs_currenty = currenty;
gs_stack[gs_stack_top].gs_xheight2 = currentxheight2;
/* from CoordTranslate */
cpexists = FALSE;
/* from Save */
gs_stack_top++;
gs_stack[gs_stack_top].gs_font = currentfont;
gs_stack[gs_stack_top].gs_colour = currentcolour;
gs_stack[gs_stack_top].gs_cpexists = cpexists;
gs_stack[gs_stack_top].gs_currenty = currenty;
gs_stack[gs_stack_top].gs_xheight2 = currentxheight2;
/* accumulated output from all four calls, repackaged */
fprintf(out_fp, "%d %d %d %d %d %d %d %d %d LoutGr2\n",
size(x, COLM), size(x, ROWM), back(x, COLM), fwd(x, ROWM),
currentfont <= 0 ? 12*PT : FontSize(currentfont, x),
width(line_gap(save_style(x))), width(space_gap(save_style(x))),
xdist, ydist);
}
} /* end SaveTranslateDefineSave */
/*@::PrintGraphicInclude()@***************************************************/
/* */
/* PrintGraphicInclude(x, colmark, rowmark) */
/* */
/* Print graphic include file, with appropriate surrounds. This code */
/* closely follows the PostScript Language Reference Manual, 2n ed., */
/* pages 733-5, except we do not clip the included EPSF. */
/* */
/* Note to porters: Version 3.0 of the EPSF standard is not compatible */
/* with previous versions. Thus, this output may crash your system. */
/* If you can find out which comment line(s) are causing the trouble, */
/* you can add to procedure strip_out to strip them out during the */
/* file inclusion step. e.g. on my system %%EOF causes problems, so I */
/* strip it out. */
/* */
/* May 1994: I've just discovered that %%Trailer causes problems for */
/* the mpage Unix utility, so now I'm stripping it out as well. */
/* */
/*****************************************************************************/
#define SKIPPING 0
#define READING_DNR 1
#define FINISHED 2
static BOOLEAN strip_out(FULL_CHAR *buff)
{ if( StringBeginsWith(buff, AsciiToFull("%%EOF")) ) return TRUE;
if( StringBeginsWith(buff, AsciiToFull("%%Trailer")) ) return TRUE;
return FALSE;
} /* end strip_out */
void PrintGraphicInclude(OBJECT x, FULL_LENGTH colmark, FULL_LENGTH rowmark)
{ OBJECT y, full_name; FULL_CHAR buff[MAX_BUFF];
FILE *fp; int state; BOOLEAN compressed;
debug0(DRS, D, "PrintGraphicInclude(x)");
assert( BackEnd == POSTSCRIPT, "PrintGraphicInclude: BackEnd!" );
assert(type(x)==INCGRAPHIC || type(x)==SINCGRAPHIC, "PrintGraphicInclude!");
assert(incgraphic_ok(x), "PrintGraphicInclude: !incgraphic_ok(x)!");
/* open the include file and get its full path name */
Child(y, Down(x));
fp = OpenIncGraphicFile(string(y), type(x), &full_name,&fpos(y),&compressed);
assert( fp != NULL, "PrintGraphicInclude: fp!" );
/* if font is different to previous word then print change */
if( font(save_style(x)) != currentfont )
{ currentfont = font(save_style(x));
currentxheight2 = FontHalfXHeight(currentfont);
fprintf(out_fp, "%hd %s\n", FontSize(currentfont, x), FontName(currentfont));
}
/* if colour is different to previous word then print change */
if( colour(save_style(x)) != currentcolour )
{ currentcolour = colour(save_style(x));
if( currentcolour > 0 )
{ fprintf(out_fp, "%s\n", ColourCommand(currentcolour));
}
}
/* generate appropriate header code */
fprintf(out_fp, "BeginEPSF\n");
CoordTranslate(colmark - back(x, COLM), rowmark - fwd(x, ROWM));
CoordScale( (float) PT, (float) PT );
CoordTranslate(-back(y, COLM), -back(y, ROWM));
fprintf(out_fp, "%%%%BeginDocument: %s\n", string(full_name));
/* copy through the include file, except divert resources lines to needs */
/* and strip out some comment lines that cause problems */
state = (StringFGets(buff, MAX_BUFF, fp) == NULL) ? FINISHED : SKIPPING;
while( state != FINISHED ) switch(state)
{
case SKIPPING:
if( StringBeginsWith(buff, AsciiToFull("%%DocumentNeededResources:")) &&
!StringContains(buff, AsciiToFull("(atend)")) )
{ y = MakeWord(WORD, &buff[StringLength("%%DocumentNeededResources:")],
no_fpos);
Link(needs, y);
state = (StringFGets(buff,MAX_BUFF,fp)==NULL) ? FINISHED : READING_DNR;
}
else
{ if( StringBeginsWith(buff, AsciiToFull("%%LanguageLevel:")) )
Error(24, 7, "ignoring LanguageLevel comment in %s file %s",
WARN, &fpos(x), KW_INCGRAPHIC, string(full_name));
if( StringBeginsWith(buff, AsciiToFull("%%Extensions:")) )
Error(24, 8, "ignoring Extensions comment in %s file %s",
WARN, &fpos(x), KW_INCGRAPHIC, string(full_name));
if( !strip_out(buff) ) StringFPuts(buff, out_fp);
state = (StringFGets(buff, MAX_BUFF, fp) == NULL) ? FINISHED : SKIPPING;
}
break;
case READING_DNR:
if( StringBeginsWith(buff, AsciiToFull("%%+")) )
{ x = MakeWord(WORD, &buff[StringLength(AsciiToFull("%%+"))], no_fpos);
Link(needs, x);
state = (StringFGets(buff,MAX_BUFF,fp)==NULL) ? FINISHED : READING_DNR;
}
else
{ if( !strip_out(buff) ) StringFPuts(buff, out_fp);
state = (StringFGets(buff, MAX_BUFF, fp) == NULL) ? FINISHED : SKIPPING;
}
break;
}
/* wrapup */
DisposeObject(full_name);
fclose(fp);
if( compressed ) StringRemove(AsciiToFull(LOUT_EPS));
fprintf(out_fp, "%%%%EndDocument\nEndEPSF\n");
wordcount = 0;
debug0(DRS, D, "PrintGraphicInclude returning.");
} /* end PrintGraphicInclude */
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