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/* $Header$
This is dvipdfm, a DVI to PDF translator.
Copyright (C) 1998, 1999 by Mark A. Wicks
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 of the License, 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
The author may be contacted via the e-mail address
mwicks@kettering.edu
*/
#include <stdlib.h>
#include "system.h"
#include "mem.h"
#include "mfileio.h"
#include "psspecial.h"
#include "pdfparse.h"
#include "pdfspecial.h"
#include "psimage.h"
#include "mpost.h"
#include "pdfdoc.h"
#define HOFFSET 1
#define VOFFSET 2
#define HSIZE 3
#define VSIZE 4
#define HSCALE 5
#define VSCALE 6
#define ANGLE 7
#define CLIP 8
#define LLX 9
#define LLY 10
#define URX 11
#define URY 12
#define RWI 13
#define RHI 14
struct keys
{
char *key;
int id;
} keys[] = {
{"hoffset", HOFFSET},
{"voffset", VOFFSET},
{"hsize", HSIZE},
{"vsize", VSIZE},
{"hscale", HSCALE},
{"vscale", VSCALE},
{"angle", ANGLE},
{"clip", CLIP},
{"llx", LLX},
{"lly", LLY},
{"urx", URX},
{"ury", URY},
{"rwi", RWI},
{"rhi", RHI},
};
static int parse_psfile (char **start, char *end, double x_user, double y_user)
{
char *key, *val, *filename = NULL;
double hoffset = 0.0, voffset = 0.0;
double hsize = 0.0, vsize = 0.0;
int error = 0;
struct xform_info *p = new_xform_info();
skip_white(start, end);
parse_key_val (start, end, &key, &val);
if (key && val) {
filename = val;
RELEASE (key);
skip_white (start, end);
while (*start < end) {
parse_key_val (start, end, &key, &val);
if (key) {
int i;
for (i=0; i<sizeof(keys)/sizeof(keys[0]); i++) {
if (!strcmp (key, keys[i].key))
break;
}
if (i == sizeof(keys)/sizeof(keys[0])) {
fprintf (stderr, "\nUnknown key in special: %s\n", key);
break;
}
if (val) {
if (is_a_number(val)) {
switch (keys[i].id) {
case HOFFSET:
hoffset = atof (val);
break;
case VOFFSET:
voffset = atof (val);
break;
case HSIZE:
hsize = atof (val);
break;
case VSIZE:
vsize = atof (val);
break;
case HSCALE:
p -> xscale = atof(val)/100.0;
break;
case VSCALE:
p -> yscale = atof(val)/100.0;
break;
case ANGLE:
p -> rotate = atof(val)*M_PI/180.0;
break;
case LLX:
p -> user_bbox = 1;
p -> u_llx = atof(val);
break;
case LLY:
p -> user_bbox = 1;
p -> u_lly = atof(val);
break;
case URX:
p -> user_bbox = 1;
p -> u_urx = atof(val);
break;
case URY:
p -> user_bbox = 1;
p -> u_ury = atof(val);
break;
case RWI:
p -> width = atof(val)/10.0;
break;
case RHI:
p -> height = atof(val)/10.0;
break;
default:
if (keys[i].id == CLIP) {
fprintf (stderr, "\nPSfile key \"clip\" takes no value\n");
} else
fprintf (stderr, "\nPSfile key \"%s=%s\" not recognized\n",
key, val);
error = 1;
}
} else {
fprintf (stderr, "\nPSfile key \"%s\" assigned nonnumeric value\n", key);
error = 1;
}
RELEASE (val);
} else { /* Keywords without values */
switch (keys[i].id) {
case CLIP:
p -> clip = 1;
break;
default:
fprintf (stderr, "\nPSfile key \"%s\" needs a value\n",
key);
error = 1;
}
}
RELEASE (key);
} else {
fprintf (stderr, "\nInvalid keyword in PSfile special\n");
dump (*start, end);
break;
}
skip_white (start, end);
} /* If here and *start == end we got something */
if (*start == end && validate_image_xform_info (p)) {
pdf_obj *result;
result = embed_image (filename, p, x_user, y_user, NULL);
if (result)
pdf_release_obj (result);
}
} else {
fprintf (stderr, "\nPSfile special has no filename\n");
error = 1;
}
if (filename)
RELEASE (filename);
release_xform_info (p);
return !error;
}
static void do_texfig (char **start, char *end)
{
char *filename;
struct xform_info *p;
skip_white (start, end);
if (*start < end && (filename = parse_val_ident (start, end))) {
p = new_xform_info (); /* Leave this empty */
p-> yscale = -1;
if (validate_image_xform_info (p)) {
pdf_obj *result;
result = embed_image (filename, p, 0.0, 0.0, NULL);
if (result)
pdf_release_obj (result);
}
release_xform_info (p);
RELEASE (filename);
} else {
fprintf (stderr, "Expecting filename here:\n");
dump (*start, end);
}
}
int ps_parse_special (char *buffer, UNSIGNED_QUAD size, double x_user,
double y_user)
{
char *start = buffer, *end;
static int block_pending = 0;
static double pending_x=0.0, pending_y=0.0;
int result = 0;
end = buffer + size;
skip_white (&start, end);
if (!strncmp (start, "PSfile", strlen("PSfile")) ||
!strncmp (start, "psfile", strlen("PSfile"))) {
result = 1; /* This means it is a PSfile special, not that it was
successful */
parse_psfile(&start, end, x_user, y_user);
} else if (!strncmp (start, "ps::[begin]", strlen("ps::[begin]"))) {
start += strlen("ps::[begin]");
block_pending = 1;
pending_x = x_user;
pending_y = y_user;
result = 1; /* Likewise */
do_raw_ps_special (&start, end, 1, x_user, y_user);
} else if (!strncmp (start, "ps::[end]", strlen("ps::[end]"))) {
if (block_pending) {
start += strlen("ps::[end]");
do_raw_ps_special (&start, end, 1, pending_x, pending_y);
block_pending = 0;
} else {
fprintf (stderr, "\nps::[end] without ps::[begin] ignored.\n");
}
result = 1; /* Likewise */
} else if (!strncmp (start, "ps: plotfile", strlen("ps: plotfile"))) {
/* This is a bizarre, ugly special case.. Not really postscript
code */
start += strlen ("ps: plotfile");
result = 1;
do_texfig (&start, end);
} else if (!strncmp (start, "ps::", strlen("ps::")) ||
!strncmp (start, "PS::", strlen("PS::"))) {
/* dvipdfm doesn't distinguish between ps:: and ps: */
start += 4;
result = 1; /* Likewise */
do_raw_ps_special (&start, end, 1,
block_pending?pending_x:x_user, block_pending?pending_y:y_user);
} else if (!strncmp (start, "ps:", strlen("ps:")) ||
!strncmp (start, "PS:", strlen("PS:"))) {
start += 3;
result = 1; /* Likewise */
do_raw_ps_special (&start, end, 1,
block_pending?pending_x:x_user, block_pending?pending_y:y_user);
}
return result;
}
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