/* Copyright (c) 1991 - 1994 Heinz W. Werntges.
Parts Copyright (c) 1995 Emmanuel Bigler, (c) 1999 Martin Kroeker.
*/
/** to_tvec.c: Converter to misc. TeX-oriented vector formats:
** Metafont, several TeX formats, simple HP-GL
**
** 91/01/19 V 1.00 HWW Derived from HPtoGF.c
** 91/02/10 V 1.01 HWW "zaehler" removed
** 91/02/15 V 1.02 HWW stdlib.h supported
** 91/02/18 V 1.03 HWW some int's changed to float's
** 91/06/09 V 1.04 HWW New options added; some simplifications done
** 91/10/15 V 1.05 HWW ANSI_C
** 91/11/20 V 1.06 HWW Many changes for "SPn;" support
** 92/01/13 V 1.06a HWW debugged
** 92/02/27 V 1.07b HWW TeX modes added (epic, emTeX specials)
** 92/05/17 V 1.07c HWW Output to stdout if outfile == '-'
** 92/05/19 V 1.07d HWW Warning if color mode
** 92/12/10 V 1.08a HWW CAD (TeXcad) mode added
** 92/12/12 V 1.08b HWW Info line now interprets outfile=='-' as "stdout"
** 93/04/12 V 1.08c HWW Fix for J. Post's report re: \emline
** 93/09/01 V 1.09a HWW Mode 5 (Simple HP-GL) added
** 93/12/30 V 1.09b HWW Mode 5: Pen number preserved
** 94/02/14 V 1.10a HWW Adapted to changes in hp2xx.h
** 95/03/23 V 1.11 E.B. new mode 6 gnuplot ascii format
**/
#include <stdio.h>
#include <stdlib.h>
#ifdef ATARI
#include <string.h>
#include <ctype.h>
#endif
#include "bresnham.h"
#include "pendef.h"
#include "hp2xx.h"
int
to_mftex (const GEN_PAR *pg, const OUT_PAR *po, int mode)
{
PlotCmd cmd;
HPGL_Pt pt1;
float xcoord2mm, ycoord2mm;
FILE *md;
int pensize, pen_no, chars_out = 0, max_chars_out = 210;
int np = 1, err = 0;
char *ftype="", *scale_cmd="", *pen_cmd="",
*poly_start="", *poly_next="", *poly_last="", *poly_end="",
*draw_dot="", *exit_cmd="";
#ifdef ATARI
int i;
FILE *csfile;
char *csname, *pos1, *pos2, *special_cmd, *tempch;
HPGL_Pt old_pt;
#endif
switch (mode)
{
case 0: /* Metafont mode */
ftype = "METAFONT";
scale_cmd = "mode_setup;\nbeginchar(\"Z\",%4.3fmm#,%4.3fmm#,0);\n";
pen_cmd = "pickup pencircle scaled 0.%1dmm;\n";
poly_start = "draw(%4.3fmm,%4.3fmm)";
poly_next = "--(%4.3fmm,%4.3fmm)";
poly_last = "--(%4.3fmm,%4.3fmm);\n";
poly_end = ";\n";
draw_dot = "drawdot(%4.3fmm,%4.3fmm);\n";
exit_cmd = "endchar;\nend;\n";
break;
case 1: /* TeX (em-Specials) mode */
ftype = "emTeX-specials";
scale_cmd = "\\unitlength1mm\n\\begin{picture}(%4.3f,%4.3f)\n";
pen_cmd = "\\special{em:linewidth 0.%1dmm}\n";
poly_start = "\\put(%4.3f,%4.3f){\\special{em:moveto}}\n";
poly_next = "\\put(%4.3f,%4.3f){\\special{em:lineto}}\n";
poly_last = poly_next;
poly_end = "";
draw_dot = "\\put(%4.3f,%4.3f){\\makebox(0,0)[cc]{.}}\n";
exit_cmd = "\\end{picture}\n";
break;
case 2: /* TeX (epic) mode */
ftype = "TeX (epic)";
scale_cmd = "\\unitlength1mm\n\\begin{picture}(%4.3f,%4.3f)\n";
pen_cmd = "\\linethickness{0.%1dmm}\n";
poly_start = "\\drawline(%4.3f,%4.3f)";
poly_next = "(%4.3f,%4.3f)";
poly_last = "(%4.3f,%4.3f)\n";
poly_end = "\n";
draw_dot = "\\put(%4.3f,%4.3f){\\picsquare}\n";
exit_cmd = "\\end{picture}\n";
break;
case 3: /* TeXcad (\emline-Macros) mode */
ftype = "TeXcad compatible";
scale_cmd = "\\unitlength=1mm\n\\begin{picture}(%4.3f,%4.3f)\n";
pen_cmd = "\\special{em:linewidth 0.%1dmm}\n\\linethickness{ 0.%1dmm}\n";
poly_start = "\\emline{%4.3f}{%4.3f}{%d}";
poly_next = "{%4.3f}{%4.3f}{%d}%%\n";
/* %% = Fix for John Post's bug report */
poly_last = poly_next;
poly_end = "";
draw_dot = "\\put(%4.3f,%4.3f){\\makebox(0,0)[cc]{.}}\n";
exit_cmd = "\\end{picture}\n";
break;
#ifdef ATARI
case 4: /* CS-Graphics specials for ATARI TeX */
ftype = "CS-TeX specials";
scale_cmd = "\\unitlength1mm\n\\begin{draw}{%4.3f}{%4.3f}{%s}\n";
special_cmd = "\\put(0,0){\\special{CS!i %s}}\n";
pen_cmd = "w 0.%1dmm\n";
poly_start = "%4.3f %4.3f l ";
poly_next = "%4.3f %4.3f\n";
poly_last = poly_next;
poly_end = "";
draw_dot = "\\put(%4.3f,%4.3f){\\makebox(0,0)[cc]{.}}\n";
exit_cmd = "\\end{draw}\n";
break;
#endif
case 5: /* HP-GL mode */
ftype = "Simple HP-GL";
scale_cmd = "";
pen_cmd = "SP%1d;";
poly_start = "PA;PU%g,%g;";
poly_next = "PD%g,%g;";
poly_last = poly_next;
poly_end = "";
draw_dot = "PU%g,%g;PD%g,%g;PU;";
exit_cmd = "";
break;
case 6: /* gnuplot ascii input from HP-GL mode */
ftype = "gnuplot ASCII";
scale_cmd = "";
pen_cmd = "#SP1\n"; /* Not fully implemented!! */
poly_start = "#PA\n\n#PU\n%g %g\n";
poly_next = "#PD\n%g %g\n";
poly_last = poly_next;
poly_end = "";
draw_dot = "\n#PU\n%g %g\n#PD\n%g %g\n\n#PU\n\n";
exit_cmd = "";
break;
}
#ifdef ATARI
if (mode == 4)
{
csname = (char *)calloc(strlen(p->outfile)+5, sizeof(char));
tempch = (char *)calloc(strlen(p->outfile)+5, sizeof(char));
strcpy(csname, p->outfile);
for (i=0; i<strlen(csname); i++)
csname[i] = (isupper(csname[i]) ? tolower(csname[i]) : csname[i]);
strcpy(tempch, csname);
}
#endif
if (*po->outfile != '-')
{
#ifdef ATARI
if (mode == 4)
{
pos1 = strrchr(csname, 46);
pos2 = strrchr(csname, 92);
if (pos1 != NULL && pos1 > pos2)
pos1[0] = 0;
strcat(csname, ".tex\0");
if (!strcmp(csname, tempch))
{
pos1 = strrchr(tempch, 46); *pos1 = 0;
strcat(tempch, ".csg\0");
}
if ((csfile = fopen(csname, "a")) == NULL ||
(md = fopen(tempch, "w")) == NULL)
{
free(csname);
free(tempch);
PError("hp2xx mf/tex");
err = ERROR;
goto MF_exit;
}
}
else
{
csfile = stdout;
#endif
if ((md = fopen(po->outfile, "w")) == NULL)
{
PError("hp2xx (mf/tex)");
err = ERROR;
goto MF_exit;
}
#ifdef ATARI
}
#endif
}
else
{
md = stdout;
#ifdef ATARI
csfile = stdout;
#endif
}
#ifdef ATARI
if (!pg->quiet)
if (mode == 4)
Eprintf ("\n\n- Writing %s code to \"%s\"\n", ftype,
*po->outfile == '-' ? "stdout" : tempch);
else
Eprintf ("\n\n- Writing %s code to \"%s\"\n", ftype,
*po->outfile == '-' ? "stdout" : po->outfile);
#else
if (!pg->quiet)
Eprintf ("\n\n- Writing %s code to \"%s\"\n", ftype,
*po->outfile == '-' ? "stdout" : po->outfile);
#endif
if (pg->is_color)
Eprintf ( "\nWARNING: MF/TeX modes ignore colors!\n");
#ifdef ATARI
if (mode == 4)
{
if (!pg->quiet)
Eprintf ( "- TEX-Input file is \"%s\"\n", csname);
pos1 = strchr(tempch, 92);
while (pos1 != NULL)
{
*pos1 = 47; pos1 = strchr(tempch, 92);
}
fprintf(csfile,"%% %s code in %s, created by hp2xx\n",
ftype, tempch);
fprintf(csfile, scale_cmd, po->width, po->height, tempch);
fprintf(csfile, special_cmd, tempch);
fprintf(md, "CS-Graphics V 1\nr\nu 1mm\n");
free(csname);
free(tempch);
}
else
{
#endif
if (mode != 5 && mode !=6)
{
fprintf(md,"%% %s code in %s, created by hp2xx\n",
ftype, po->outfile);
fprintf(md, scale_cmd, po->width, po->height);
}
#ifdef ATARI
}
#endif
pen_no = DEFAULT_PEN_NO;
pensize = pt.width[pen_no];
if (pensize != 0)
switch (mode) {
case 3:
fprintf(md, pen_cmd, pensize, pensize);
break;
case 5:
fprintf(md, pen_cmd, pen_no);
break;
default:
fprintf(md, pen_cmd, pensize);
break;
}
if (mode == 5)
{
xcoord2mm = 1.0;
ycoord2mm = 1.0;
}
else
{
/* Factor transforming the coordinate values into millimeters: */
xcoord2mm = po->width / (po->xmax - po->xmin);
ycoord2mm = po->height / ( po->ymax - po->ymin);
}
while ((cmd = PlotCmd_from_tmpfile()) != CMD_EOF)
switch (cmd)
{
case NOP:
break;
case SET_PEN:
if ((pen_no = fgetc(pg->td)) == EOF)
{
PError("Unexpected end of temp. file: ");
err = ERROR;
goto MF_exit;
}
pensize = pt.width[pen_no];
if (pensize != 0)
{
if (chars_out) /* Finish up old polygon */
{
fprintf(md, poly_end);
chars_out = 0;
}
switch (mode) {
case 3:
fprintf(md, pen_cmd, pensize, pensize);
break;
case 5:
fprintf(md, pen_cmd, pen_no);
break;
default:
fprintf(md, pen_cmd, pensize);
break;
}
}
break;
case DEF_PW:
if(!load_pen_width_table(pg->td)) {
PError("Unexpected end of temp. file");
err = ERROR;
goto MF_exit;
}
pensize = pt.width[pen_no];
if (pensize != 0)
switch (mode) {
case 3:
fprintf(md, pen_cmd, pensize, pensize);
break;
case 5:
fprintf(md, pen_cmd, pen_no);
break;
default:
fprintf(md, pen_cmd, pensize);
break;
}
break;
case MOVE_TO:
HPGL_Pt_from_tmpfile (&pt1);
if (pensize == 0 || mode == 3 || mode == 4)
break;
if (chars_out) /* Finish up old polygon */
fprintf(md, poly_end);
chars_out = fprintf(md, poly_start,
(pt1.x - po->xmin) * xcoord2mm,
(pt1.y - po->ymin) * ycoord2mm);
break;
case DRAW_TO:
if (mode == 3) /* Needs special treatment: no polygons! */
{
chars_out = fprintf(md, poly_start,
(pt1.x - po->xmin) * xcoord2mm,
(pt1.y - po->ymin) * ycoord2mm, np++);
HPGL_Pt_from_tmpfile (&pt1);
chars_out += fprintf(md, poly_next,
(pt1.x - po->xmin) * xcoord2mm,
(pt1.y - po->ymin) * ycoord2mm, np++);
break;
}
#ifdef ATARI
else if (mode == 4)
{
old_pt = pt1;
chars_out = fprintf(md, poly_start,
(old_pt.x - po->xmin) * xcoord2mm,
(old_pt.y - po->ymin) * ycoord2mm, np++);
HPGL_Pt_from_tmpfile (&pt1);
chars_out += fprintf(md, poly_next,
(pt1.x - old_pt.x) * xcoord2mm,
(pt1.y - old_pt.y) * ycoord2mm, np++);
old_pt = pt1;
break;
}
#endif
HPGL_Pt_from_tmpfile (&pt1);
if (pensize == 0)
break;
if (chars_out > max_chars_out)
/* prevent overlong lines */
{
fprintf(md, poly_last,
(pt1.x - po->xmin) * xcoord2mm,
(pt1.y - po->ymin) * ycoord2mm);
chars_out = fprintf(md, poly_start,
(pt1.x - po->xmin) * xcoord2mm,
(pt1.y - po->ymin) * ycoord2mm);
} else
chars_out += fprintf(md, poly_next,
(pt1.x - po->xmin) * xcoord2mm,
(pt1.y - po->ymin) * ycoord2mm);
break;
case PLOT_AT:
HPGL_Pt_from_tmpfile (&pt1);
if (chars_out) /* Finish up old polygon */
{
fprintf(md, poly_end);
chars_out = 0;
}
if (pensize == 0)
break;
#ifdef ATARI
if (mode == 4)
fprintf(csfile, draw_dot,
(pt1.x - po->xmin) * xcoord2mm,
(pt1.y - po->ymin) * ycoord2mm);
else
#endif
if (mode == 5)
fprintf(md, draw_dot,
(pt1.x - po->xmin) * xcoord2mm,
(pt1.y - po->ymin) * ycoord2mm,
(pt1.x + 1.0 - po->xmin) * xcoord2mm,
(pt1.y - po->ymin) * ycoord2mm);
else
fprintf(md, draw_dot,
(pt1.x - po->xmin) * xcoord2mm,
(pt1.y - po->ymin) * ycoord2mm);
break;
default:
Eprintf ("Illegal cmd in temp. file!");
err = ERROR;
goto MF_exit;
}
if (chars_out) /* Finish up old polygon */
{
fprintf(md, poly_end);
}
#ifdef ATARI
if (mode == 4)
fprintf(csfile, exit_cmd);
else
#endif
fprintf(md, exit_cmd); /* Add file trailer */
MF_exit:
if (md != stdout && md != NULL)
fclose(md);
#ifdef ATARI
if (csfile != stdout && csfile != NULL)
fclose(csfile);
#endif
if (!pg->quiet)
Eprintf ("\n");
return err;
}
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