aboutsummaryrefslogtreecommitdiffstats
path: root/z24.c
diff options
context:
space:
mode:
Diffstat (limited to 'z24.c')
-rw-r--r--z24.c1513
1 files changed, 1513 insertions, 0 deletions
diff --git a/z24.c b/z24.c
new file mode 100644
index 0000000..a5aa145
--- /dev/null
+++ b/z24.c
@@ -0,0 +1,1513 @@
+/*@z24.c:Print Service:PrintInit()@*******************************************/
+/* */
+/* THE LOUT DOCUMENT FORMATTING SYSTEM (VERSION 3.17) */
+/* COPYRIGHT (C) 1991, 1999 Jeffrey H. Kingston */
+/* */
+/* Jeffrey H. Kingston (jeff@cs.usyd.edu.au) */
+/* Basser Department of Computer Science */
+/* The University of Sydney 2006 */
+/* AUSTRALIA */
+/* */
+/* PDF Back End by Vincent Tan, February 1998. */
+/* */
+/* 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 2, 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., 59 Temple Place, Suite 330, Boston MA 02111-1307 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 <math.h> /* for fabs() */
+
+#include "externs.h"
+#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;
+
+ case PDF:
+
+ PDFFile_Init(out_fp, h/PT, v/PT, IN, CM, PT, EM);
+
+ /* print encoding vectors as resources */
+ MapPrintEncodings(out_fp);
+
+ FontPrintPageSetup(out_fp);
+
+ PDFPage_Init(out_fp, 1.0 / PT, PT/2);
+
+ FontPrintPageResources(out_fp); /* write out font objects */
+ FontAdvanceCurrentPage();
+ 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;
+
+ case PDF:
+
+ /* write out page objects */
+ PDFPage_Cleanup(out_fp);
+ PDFPage_Init(out_fp, 1.0 / PT, PT/2);
+
+ /* write out font objects */
+ FontPrintPageResources(out_fp);
+ FontPrintPageSetup(out_fp);
+ FontAdvanceCurrentPage();
+ 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));
+ TotalWordCount++;
+
+ switch( BackEnd )
+ {
+ case PLAINTEXT:
+
+ h = ((float) hpos / PlainCharWidth) + 0.5;
+ v = ((float) vpos / PlainCharHeight);
+ debug3(DGP, DD, "PrintWord(%s at h = %d, v = %d)", string(x), h, v);
+ if( h >= 0 && h + StringLength(string(x)) < hsize && v >= 0 && v < vsize )
+ {
+ assert( h >= 0, "PrintWord: h < 0!" );
+ assert( h < hsize, "PrintWord: h >= hsize!" );
+ assert( v >= 0, "PrintWord: v < 0!" );
+ assert( v < vsize, "PrintWord: v >= vsize!" );
+ p = &page[v*hsize + h];
+ for( i = 0; string(x)[i] != '\0'; i++ )
+ *p++ = string(x)[i];
+ }
+ else
+ {
+ Error(24, 11, "word %s deleted (internal error, off page at %d,%d)",
+ WARN, &fpos(x), string(x), h, v);
+ }
+ 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;
+
+
+
+ case PDF:
+ {
+
+ static int last_hpos; /* does not need to be initialised */
+ static int next_hpos = -1;
+#if 0
+ struct metrics *fnt;
+#endif
+ /* if font is different to previous word then print change */
+ if( word_font(x) != currentfont )
+ { currentfont = word_font(x);
+ currentxheight2 = FontHalfXHeight(currentfont);
+ PDFFont_Set(out_fp, FontSize(currentfont, x), FontName(currentfont));
+ }
+
+ /* if colour is different to previous word then print change */
+ if( word_colour(x) != currentcolour )
+ {
+ currentcolour = word_colour(x);
+ if( currentcolour > 0 )
+ {
+ char str[256];
+
+ sprintf(str, "%s ", ColourCommand(currentcolour));
+ PDFPage_Write(out_fp, str);
+ }
+ }
+
+ /* move to coordinate of x */
+ debug1(DGP, DDD, " currentxheight2 = %d", currentxheight2);
+ vpos = vpos - currentxheight2;
+ if( cpexists && (currenty == vpos) && PDFHasValidTextMatrix() )
+ { /* printnum(hpos, out_fp); */
+ command = 's';
+/*
+ Note: I calculate the width of the space char here in case the font has
+ changed. This prevents subtle spacing errors from occurring.
+ */
+#if 0
+ fnt = finfo[currentfont].size_table;
+
+ if ( (next_hpos + fnt[' '].right /* width of space char */ ) == hpos )
+ command = ' ';
+#endif
+ }
+ 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) */
+ /* FontWordSize(x); - this should not be necessary */
+
+ switch (command)
+ {
+ case 'm':
+
+ PDFText_OpenXY(out_fp, hpos, vpos);
+ last_hpos = hpos;
+ next_hpos = hpos + fwd(x, COLM); /* fwd(x, COLM) = width of wd */
+ break;
+
+ case 's':
+#if 0
+ PDFText_Open(out_fp);
+ PDFText_Kern(out_fp, hpos - next_hpos);
+#else
+ PDFText_OpenX(out_fp, hpos - last_hpos);
+#endif
+ last_hpos = hpos;
+ next_hpos = hpos + fwd(x, COLM); /* fwd(x, COLM) = width of wd */
+ break;
+#if 0
+ case ' ':
+
+ PDFText_Open(out_fp);
+#if 1
+ /* try kerning to get correct position */
+ PDFText_Kern(out_fp, fnt[' '].right);
+#else
+ PDFPage_Write(out_fp, EightBitToPrintForm[' ']);
+#endif
+ next_hpos += fwd(x, COLM) + fnt[' '].right; /* width of space ch */
+ break;
+#endif
+ }
+
+ p = string(x);
+ PDFPage_Write(out_fp, EightBitToPrintForm[*p]);
+
+ 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);
+ KernLength(font_num(finfo[word_font(x)].original_font),
+ unacc, *(p-1), *p, ksize);
+ if ( ksize != 0 )
+ {
+ PDFText_Kern(out_fp, ksize);
+ }
+ PDFPage_Write(out_fp, EightBitToPrintForm[*p]);
+ }
+ PDFText_Close(out_fp);
+ break;
+ }
+
+
+ } /* end switch */
+ debug0(DGP, DDD, "PrintWord returning");
+} /* end PrintWord */
+
+
+/*****************************************************************************/
+/* */
+/* PrintPlainGraphicObject(x, xmk, ymk, z) */
+/* */
+/* Print plain graphic object x at xmk, ymk with the size of z. */
+/* */
+/*****************************************************************************/
+
+void PrintPlainGraphicObject(OBJECT x, FULL_LENGTH xmk,FULL_LENGTH ymk,OBJECT z)
+{ int i, len, starth, startv, stoph, stopv, h, v;
+ debug2(DGP, D, "PrintPlainGraphicObject(x, xmk %s, ymk %s)",
+ EchoLength(xmk), EchoLength(ymk));
+
+ assert( BackEnd == PLAINTEXT, "PrintPlainGraphicObject: back end!" );
+ if( type(x) != WORD && type(x) != QWORD )
+ {
+ Error(24, 12, "left parameter of %s must be a simple word",
+ WARN, &fpos(x), KW_PLAINGRAPHIC);
+ return;
+ }
+ len = StringLength(string(x));
+ if( StringLength(string(x)) == 0 )
+ {
+ Error(24, 13, "left parameter of %s must be a non-empty word",
+ WARN, &fpos(x), KW_PLAINGRAPHIC);
+ return;
+ }
+ starth = (((float) xmk ) / PlainCharWidth) + 0.5;
+ startv = (((float) ymk ) / PlainCharHeight);
+ stoph = (((float) xmk + size(z, COLM)) / PlainCharWidth) + 0.5;
+ stopv = (((float) ymk - size(z, ROWM)) / PlainCharHeight); /* NB - not + */
+ SetLengthDim(COLM);
+ debug5(DGP, D, " xmk %s bk %s fwd %s -> %d,%d",
+ EchoLength(xmk), EchoLength(back(z, COLM)), EchoLength(fwd(z, COLM)),
+ starth, stoph);
+ SetLengthDim(ROWM);
+ debug5(DGP, D, " ymk %s bk %s fwd %s -> %d,%d",
+ EchoLength(ymk), EchoLength(back(z, ROWM)), EchoLength(fwd(z, ROWM)),
+ startv, stopv);
+ if( starth >= 0 && stoph < hsize && startv >= 0 && stopv < vsize )
+ { i = 0;
+ for( v = startv-1; v >= stopv; v-- )
+ {
+ for( h = starth; h < stoph; h++ )
+ {
+ if( i == len ) i = 0;
+ page[v*hsize + h] = string(x)[i++];
+ }
+ }
+ }
+ else
+ {
+ Error(24, 14, "fill %s deleted (internal error, off page at %d,%d)",
+ WARN, &fpos(x), string(x), h, v);
+ }
+} /* end PrintPlainGraphicObject */
+
+
+/*****************************************************************************/
+/* */
+/* 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;
+
+ case PDF:
+ PDFPage_PrintUnderline(out_fp, 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;
+
+ case PDF:
+
+ PDFPage_Cleanup(out_fp); /* write out page objects */
+ /* MapPrintResources(out_fp); not needed */
+ PDFFile_Cleanup(out_fp);
+ 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 != PLAINTEXT, "CoordTranslate: BackEnd!" );
+ if (BackEnd == POSTSCRIPT)
+ fprintf(out_fp, "%d %d translate\n", xdist, ydist);
+ else if (BackEnd == PDF)
+ {
+ if ((xdist != 0) || (ydist != 0))
+ {
+#if 1
+ PDFPage_Translate(out_fp, xdist, ydist);
+#else
+ char temp_str[64];
+ sprintf(temp_str, "1 0 0 1 %d %d cm\n", xdist, ydist);
+ PDFPage_Write(out_fp, temp_str);
+#endif
+ }
+ }
+ 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 != PLAINTEXT, "CoordRotate: BackEnd!" );
+ if (BackEnd == POSTSCRIPT)
+ fprintf(out_fp, "%.4f rotate\n", (float) amount / DG);
+ else if (BackEnd == PDF)
+ {
+ int theAmount = ((amount / DG) % 360);
+ if ( theAmount != 0 )
+ {
+ #define PI 3.1415926535897931160
+
+ PDFPage_Rotate(out_fp, (double) theAmount * (double) PI / (double) 180.0);
+ }
+ }
+ 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 != PLAINTEXT, "CoordScale: BackEnd!" );
+ ifdebug(DRS, D, sprintf(buff, "%.3f, %.3f", hfactor, vfactor));
+ debug1(DRS, D, "CoordScale(%s)", buff);
+ if (BackEnd == POSTSCRIPT)
+ fprintf(out_fp, "%.4f %.4f scale\n", hfactor, vfactor);
+ else if (BackEnd == PDF)
+ {
+ if ( (fabs(hfactor - 1.0) > 0.01) || (fabs(vfactor - 1.0) > 0.01) )
+ {
+#if 1
+ PDFPage_Scale(out_fp, hfactor, vfactor);
+#else
+ char temp_str[64];
+ sprintf(temp_str, "%.2f 0 0 %.2f 0 0 cm\n", hfactor, vfactor);
+ PDFPage_Write(out_fp, temp_str);
+#endif
+ }
+ }
+ 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 != PLAINTEXT, "SaveGraphicState: BackEnd!" );
+ if (BackEnd == POSTSCRIPT)
+ fprintf(out_fp, "gsave\n");
+ else if (BackEnd == PDF)
+ PDFPage_Push(out_fp);
+ gs_stack_top++;
+ if( gs_stack_top >= MAX_GS )
+ Error(24, 5, "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 != PLAINTEXT, "RestoreGraphicState: BackEnd!" );
+ if( BackEnd == POSTSCRIPT )
+ fprintf(out_fp, "\ngrestore\n");
+ else if( BackEnd == PDF )
+ PDFPage_Pop(out_fp);
+ 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 != PLAINTEXT, "PrintGraphicObject: BackEnd!" );
+ debug3(DPS, D, "PrintGraphicObject(%s %s %s)",
+ EchoFilePos(&fpos(x)), Image(type(x)), EchoObject(x));
+ switch( type(x) )
+ {
+ case WORD:
+ case QWORD:
+#if 1
+ if (BackEnd == POSTSCRIPT)
+ StringFPuts(string(x), out_fp);
+ else if (BackEnd == PDF)
+ {
+ PDFPage_WriteGraphic(out_fp, string(x));
+ }
+#else
+ StringFPuts(string(x), out_fp);
+#endif
+ break;
+
+
+ case ACAT:
+
+ for( link = Down(x); link != x; link = NextDown(link) )
+ { Child(y, link);
+ if( type(y) == GAP_OBJ )
+ {
+ if( BackEnd == POSTSCRIPT )
+ {
+ if( vspace(y) > 0 ) fputs("\n", out_fp);
+ else if( hspace(y) > 0 ) fputs(" ", out_fp);
+ }
+ else if( BackEnd == PDF )
+ {
+ if( vspace(y) > 0 ) PDFPage_Write(out_fp, "\n");
+ else if( hspace(y) > 0 ) PDFPage_Write(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, 6, "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, 7, "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;
+
+ }
+ debug0(DPS, D, "PrintGraphicObject returning");
+} /* 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 != PLAINTEXT, "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);
+#if 1 /* VT 98/01/04: modified for PDF */
+ if (BackEnd == POSTSCRIPT)
+ fprintf(out_fp, "%hd %s ", FontSize(currentfont, x), FontName(currentfont));
+ else if (BackEnd == PDF)
+ PDFFont_Set(out_fp, FontSize(currentfont, x), FontName(currentfont));
+#else
+ fprintf(out_fp, "%hd %s ", FontSize(currentfont, x),
+ FontName(currentfont));
+#endif
+ }
+ }
+
+ /* if colour is different to previous word then print change */
+ if( colour(save_style(x)) != currentcolour )
+ { currentcolour = colour(save_style(x));
+ if( currentcolour > 0 )
+ {
+#if 1
+ if( BackEnd == POSTSCRIPT )
+ fprintf(out_fp, "%s ", ColourCommand(currentcolour));
+ else if (BackEnd == PDF)
+ {
+ char str[256];
+ sprintf(str, "%s ", ColourCommand(currentcolour));
+ PDFPage_Write(out_fp, str);
+ }
+#else
+ fprintf(out_fp, "%s ", ColourCommand(currentcolour));
+#endif
+ }
+ }
+
+ if (BackEnd == POSTSCRIPT)
+ 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))));
+ else if( BackEnd == PDF )
+ {
+ PDFPage_SetVars(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( BackEnd == PDF )
+ {
+ /* do it bit by bit */
+ SaveGraphicState(x);
+ CoordTranslate(xdist, ydist);
+ DefineGraphicNames(x);
+ SaveGraphicState(x);
+ return;
+ }
+
+ assert( BackEnd == POSTSCRIPT, "SaveTranslateDefineSave: BackEnd!" );
+ 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)");
+
+ if (BackEnd == PDF)
+ {
+ Error(24, 8, "PrintGraphicInclude: cannot include EPSF in a PDF file. File ignored.",
+ WARN, &fpos(x));
+ return;
+ }
+
+ 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, 9, "ignoring LanguageLevel comment in %s file %s",
+ WARN, &fpos(x), KW_INCGRAPHIC, string(full_name));
+ if( StringBeginsWith(buff, AsciiToFull("%%Extensions:")) )
+ Error(24, 10, "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, "\n%%%%EndDocument\nEndEPSF\n");
+ wordcount = 0;
+ debug0(DRS, D, "PrintGraphicInclude returning.");
+} /* end PrintGraphicInclude */
generated by cgit (git 2.34.1) at 2024-09-19 16:51:05 +0000