home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Media Share 9
/
MEDIASHARE_09.ISO
/
os2
/
hpgl312.zip
/
TO_MF.C
< prev
next >
Wrap
C/C++ Source or Header
|
1993-04-18
|
13KB
|
394 lines
/*
Copyright (c) 1991 - 1993 Heinz W. Werntges. All rights reserved.
Distributed by Free Software Foundation, Inc.
This file is part of HP2xx.
HP2xx is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY. No author or distributor accepts responsibility
to anyone for the consequences of using it or for whether it serves any
particular purpose or works at all, unless he says so in writing. Refer
to the GNU General Public License, Version 2 or later, for full details.
Everyone is granted permission to copy, modify and redistribute
HP2xx, but only under the conditions described in the GNU General Public
License. A copy of this license is supposed to have been
given to you along with HP2xx so you can know your rights and
responsibilities. It should be in a file named COPYING. Among other
things, the copyright notice and this notice must be preserved on all
copies.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
*/
/** to_mf.c: Converter to Metafont and misc. TeX formats
**
** 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
**/
#include <stdio.h>
#include <stdlib.h>
#ifdef ATARI
#include <string.h>
#include <ctype.h>
#endif
#include "bresnham.h"
#include "hp2xx.h"
extern float xmin, xmax, ymin, ymax;
void to_mftex (PAR *p, FILE *td, int mode)
{
PlotCmd cmd;
HPGL_Pt pt1;
float coord2mm;
FILE *md;
int pensize, chars_out = 0, max_chars_out = 210, np = 1;
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
}
#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 (*p->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");
exit(ERROR);
}
}
else
{
csfile = stdout;
#endif
if ((md = fopen(p->outfile, "w")) == NULL)
{
perror("hp2xx (mf/tex)");
exit(ERROR);
}
#ifdef ATARI
}
#endif
}
else
{
md = stdout;
#ifdef ATARI
csfile = stdout;
#endif
}
#ifdef ATARI
if (!p->quiet)
if (mode == 4)
fprintf(stderr,"\n\n- Writing %s code to \"%s\"\n", ftype,
*p->outfile == '-' ? "stdout" : tempch);
else
fprintf(stderr,"\n\n- Writing %s code to \"%s\"\n", ftype,
*p->outfile == '-' ? "stdout" : p->outfile);
#else
if (!p->quiet)
fprintf(stderr,"\n\n- Writing %s code to \"%s\"\n", ftype,
*p->outfile == '-' ? "stdout" : p->outfile);
#endif
if (p->is_color)
fprintf(stderr, "\nWARNING: MF/TeX modes ignore colors!\n");
#ifdef ATARI
if (mode == 4)
{
if (!p->quiet)
fprintf(stderr, "- 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, p->width, p->height, tempch);
fprintf(csfile, special_cmd, tempch);
fprintf(md, "CS-Graphics V 1\nr\nu 1mm\n");
free(csname); free(tempch);
}
else
{
#endif
fprintf(md,"%% %s code in %s, created by hp2xx\n",
ftype, p->outfile);
fprintf(md, scale_cmd, p->width, p->height);
#ifdef ATARI
}
#endif
pensize = p->pensize[p->pen];
if (pensize != 0)
if (mode == 3)
fprintf(md, pen_cmd, pensize, pensize);
else
fprintf(md, pen_cmd, pensize);
/* Factor transforming the coordinate values into millimeters: */
coord2mm = p->height / (ymax-ymin);
while ((cmd = PlotCmd_from_tmpfile()) != EOF)
switch (cmd)
{
case NOP:
break;
case SET_PEN:
if ((p->pen = fgetc(td)) == EOF)
{
perror("Unexpected end of temp. file: ");
exit (ERROR);
}
pensize = p->pensize[p->pen];
if (pensize != 0)
{
if (chars_out) /* Finish up old polygon */
{
fprintf(md, poly_end);
chars_out = 0;
}
if (mode == 3)
fprintf(md, pen_cmd, pensize, pensize);
else
fprintf(md, pen_cmd, pensize);
}
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-xmin) * coord2mm, (pt1.y-ymin) * coord2mm);
break;
case DRAW_TO:
if (mode == 3) /* Needs special treatment: no polygons! */
{
chars_out = fprintf(md, poly_start,
(pt1.x-xmin) * coord2mm, (pt1.y-ymin) * coord2mm, np++);
HPGL_Pt_from_tmpfile (&pt1);
chars_out += fprintf(md, poly_next,
(pt1.x-xmin) * coord2mm, (pt1.y-ymin) * coord2mm, np++);
break;
}
#ifdef ATARI
else if (mode == 4)
{
old_pt = pt1;
chars_out = fprintf(md, poly_start,
(old_pt.x-xmin) * coord2mm, (old_pt.y-ymin) * coord2mm, np++);
HPGL_Pt_from_tmpfile (&pt1);
chars_out += fprintf(md, poly_next,
(pt1.x-old_pt.x) * coord2mm, (pt1.y-old_pt.y) * coord2mm, 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-xmin) * coord2mm, (pt1.y-ymin) * coord2mm);
chars_out = fprintf(md, poly_start,
(pt1.x-xmin) * coord2mm, (pt1.y-ymin) * coord2mm);
} else
chars_out += fprintf(md, poly_next,
(pt1.x-xmin) * coord2mm, (pt1.y-ymin) * coord2mm);
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-xmin) * coord2mm, (pt1.y-ymin) * coord2mm);
else
#endif
fprintf(md, draw_dot,
(pt1.x-xmin) * coord2mm, (pt1.y-ymin) * coord2mm);
break;
default:
fprintf(stderr,"Illegal cmd in temp. file!");
exit (ERROR);
}
if (chars_out) /* Finish up old polygon */
{
fprintf(md, poly_end);
chars_out = 0;
}
#ifdef ATARI
if (mode == 4)
{
fprintf(csfile, exit_cmd);
if (csfile != stdout)
fclose(csfile);
}
else
#endif
fprintf(md, exit_cmd); /* Add file trailer */
if (md != stdout)
fclose(md);
if (!p->quiet)
fputc ('\n', stderr);
}