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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "gks.h"
#include "gkscore.h"
static char *path = NULL;
static int wstype = GKS_K_WSTYPE_DEFAULT;
static int orientation = 0;
static double factor = 1.0;
static void usage(int help)
{
fprintf(stderr, "\
Usage: gksm [-Oorientation] [-factor f] [-h] [-t wstype] [file]\n\
-Oorientation Select the orientation (landscape, portrait).\n\
-factor f Specifies the magnification factor.\n\
-h Prints this information.\n\
-t wstype Use GKS workstation type wstype.\n");
if (help)
fprintf(stderr, "\n\
The present workstation types recognized by gksm are:\n\
61: PostScript (b/w) 2: GKS Metafile\n\
62: Color PostScript\n\
63: PostScript (b/w, landscape)\n\
64: Color PostScript (landscape)\n\
101: Portable Document Format (PDF)\n\
102: Portable Document Format (PDF, compressed)\n\
214: X display w\\ Sun rle rasterfile dump\n\
215: X display w\\ Compuserve GIF dump\n\
320: Windows Bitmap File (BMP)\n\
321: JPEG File\n\
322: Portable Network Graphics (PNG)\n\
323: Tagged Image File (TIFF)\n\
382: Scalable Vector Graphics (SVG)\n\
390: Windows Metafile (WMF)\n\
400: Quartz 2D Graphics (Mac OS X)\n");
exit(1);
}
static void parse(int argc, char **argv)
{
char *option;
int ret;
argv++;
while ((option = *argv++) != NULL)
{
if (!strcmp(option, "-Olandscape"))
{
orientation = 1;
}
else if (!strcmp(option, "-Oportrait"))
{
orientation = 2;
}
else if (!strcmp(option, "-factor"))
{
if (*argv)
factor = atof(*argv++);
else
usage(0);
}
else if (!strcmp(option, "-h"))
{
usage(1);
}
else if (!strcmp(option, "-t"))
{
if (*argv)
wstype = atoi(*argv++);
else
usage(0);
}
else if (*option == '-')
{
fprintf(stderr, "Invalid option: '%s'\n", option);
usage(0);
}
else
path = option;
}
if (path != NULL)
{
ret = access(path, R_OK);
if (ret)
{
perror("open");
exit(-1);
}
}
else
{
usage(0);
exit(1);
}
}
int main(int argc, char *argv[])
{
int i, asf[13];
int type, lenodr, maxodr = 100;
char *item;
parse(argc, argv);
for (i = 0; i < 13; i++) asf[i] = GKS_K_ASF_INDIVIDUAL;
gks_open_gks(6);
gks_set_asf(asf);
gks_open_ws(1, path, GKS_K_WSTYPE_MI);
gks_activate_ws(1);
gks_open_ws(2, GKS_K_CONID_DEFAULT, wstype);
gks_activate_ws(2);
switch (orientation)
{
case 1:
gks_set_ws_viewport(2, 0.0, 0.297, 0.0, 0.21);
gks_set_ws_window(2, 0.0, 1.0, 0.0, 0.21 / 0.297);
break;
case 2:
gks_set_ws_viewport(2, 0.0, 0.21, 0.0, 0.297);
gks_set_ws_window(2, 0.0, 0.21 / 0.297, 0.0, 1.0);
break;
}
if (factor != 1.0)
{
double transx = 0, transy = 0, mat[3][2];
if (factor < 1)
{
if (factor > 0)
{
transx = 0.5 * (factor - 1);
transy = -transx;
}
else
factor = -factor;
}
gks_create_seg(1);
gks_eval_xform_matrix(0.5, 0.5, transx, transy, 0, factor, factor, GKS_K_COORDINATES_NDC, mat);
gks_set_seg_xform(1, mat);
}
item = gks_malloc(maxodr * 80);
gks_get_item(1, &type, &lenodr);
while (type)
{
if (lenodr > maxodr)
{
while (lenodr > maxodr) maxodr *= 2;
item = gks_realloc(item, maxodr * 80);
}
gks_read_item(1, lenodr, maxodr, item);
gks_interpret_item(type, lenodr, maxodr, item);
gks_get_item(1, &type, &lenodr);
}
gks_update_ws(2, GKS_K_POSTPONE_FLAG);
if (wstype == GKS_K_WSTYPE_DEFAULT)
{
printf("Press RETURN to continue ...");
fflush(stdout);
getchar();
}
gks_emergency_close();
return 0;
}
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