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gimp/plug-ins/common/ps.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
* PostScript file plugin
* PostScript writing and GhostScript interfacing code
* Copyright (C) 1997 Peter Kirchgessner
* (email: pkirchg@aol.com, WWW: http://members.aol.com/pkirchg)
*
* Added controls for TextAlphaBits and GraphicsAlphaBits
* George White <aa056@chebucto.ns.ca>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/* Event history:
* V 0.90, PK, 28-Mar-97: Creation.
* V 0.91, PK, 03-Apr-97: Clip everything outside BoundingBox.
* 24-Apr-97: Multi page read support.
* V 1.00, PK, 30-Apr-97: PDF support.
* V 1.01, PK, 05-Oct-97: Parse rc-file.
* V 1.02, GW, 09-Oct-97: Antialiasing support.
* PK, 11-Oct-97: No progress bars when running non-interactive.
* New procedure file_ps_load_setargs to set
* load-arguments non-interactively.
* If GS_OPTIONS are not set, use at least "-dSAFER"
*/
#define VERSIO 1.02
static char ident[] = "@(#) GIMP PostScript/PDF file-plugin v1.02 12-Oct-97";
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <time.h>
#include "gtk/gtk.h"
#include "libgimp/gimp.h"
#include "app/gimage.h"
#include "app/gdisplay.h"
#define STR_LENGTH 64
/* Load info */
typedef struct
{
guint resolution; /* resolution (dpi) at which to run ghostscript */
guint width, height; /* desired size (ghostscript may ignore this) */
gint use_bbox; /* 0: use width/height, 1: try to use BoundingBox */
char pages[STR_LENGTH];/* Pages to load (eg.: 1,3,5-7) */
gint pnm_type; /* 4: pbm, 5: pgm, 6: ppm, 7: automatic */
gint textalpha; /* antialiasing: 1,2, or 4 TextAlphaBits */
gint graphicsalpha; /* antialiasing: 1,2, or 4 GraphicsAlphaBits */
} PSLoadVals;
typedef struct
{
gint run; /* run */
} PSLoadInterface;
static PSLoadVals plvals =
{
100, /* 100 dpi */
826, 1170, /* default width/height (A4) */
1, /* try to use BoundingBox */
"1-99", /* pages to load */
6, /* use ppm (colour) */
1, /* dont use text antialiasing */
1 /* dont use graphics antialiasing */
};
static PSLoadInterface plint =
{
FALSE /* run */
};
/* Save info */
typedef struct
{
gdouble width, height; /* Size of image */
gdouble x_offset, y_offset; /* Offset to image on page */
gint unit_mm; /* Unit of measure (0: inch, 1: mm) */
gint keep_ratio; /* Keep aspect ratio */
gint rotate; /* Rotation (0, 90, 180, 270) */
} PSSaveVals;
typedef struct
{
gint run; /* run */
} PSSaveInterface;
static PSSaveVals psvals =
{
287.0, 200.0, /* Image size (A4) */
5.0, 5.0, /* Offset */
1, /* Unit is mm */
1, /* Keep edge ratio */
90, /* Rotate */
};
static PSSaveInterface psint =
{
FALSE /* run */
};
/* Declare some local functions.
*/
static void query (void);
static void run (char *name,
int nparams,
GParam *param,
int *nreturn_vals,
GParam **return_vals);
static gint32 load_image (char *filename);
static gint save_image (char *filename,
gint32 image_ID,
gint32 drawable_ID);
static gint save_gray (FILE *ofp,
gint32 image_ID,
gint32 drawable_ID,
const PSSaveVals *saveopt);
static gint save_index (FILE *ofp,
gint32 image_ID,
gint32 drawable_ID,
const PSSaveVals *saveopt);
static gint save_rgb (FILE *ofp,
gint32 image_ID,
gint32 drawable_ID,
const PSSaveVals *saveopt);
static gint32 create_new_image (char *filename, guint pagenum,
guint width, guint height,
GImageType type, gint32 *layer_ID, GDrawable **drawable,
GPixelRgn *pixel_rgn);
static void check_load_vals (void);
static void check_save_vals (void);
static char *ftoa (char *format, double r);
static gint page_in_list (char *list, guint pagenum);
static gint get_bbox (char *filename,
int *x0, int *y0, int *x1, int *y1);
static FILE *ps_open (char *filename,
const PSLoadVals *loadopt,
int *llx, int* lly, int* urx, int* ury);
static void ps_close (FILE *ifp);
static gint32 skip_ps (FILE *ifp);
static gint32 load_ps (char *filename,
guint pagenum,
FILE *ifp,
int llx, int lly, int urx, int ury);
static void save_ps_header (FILE *ofp,
char *filename);
static void save_ps_transform (FILE *ofp,
int width,
int height,
int bpp);
static void save_ps_trailer (FILE *ofp);
/* Dialog-handling */
typedef struct
{
GtkWidget *dialog;
GtkWidget *entry[4];
int use_bbox;
int dataformat[4];
int textalphabits[3];
int graphicsalphabits[3];
} LoadDialogVals;
static gint load_dialog (void);
static void load_close_callback (GtkWidget *widget,
gpointer data);
static void load_ok_callback (GtkWidget *widget,
gpointer data);
static void load_toggle_update (GtkWidget *widget,
gpointer data);
typedef struct
{
GtkWidget *dialog;
GtkWidget *entry[4];
int keep_ratio;
int unit[2];
int rot[4];
} SaveDialogVals;
static gint save_dialog (void);
static void save_close_callback (GtkWidget *widget,
gpointer data);
static void save_ok_callback (GtkWidget *widget,
gpointer data);
static void save_toggle_update (GtkWidget *widget,
gpointer data);
static void save_mm_toggle_update (GtkWidget *widget,
gpointer data);
static void show_message (char *);
GPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
/* The run mode */
static GRunModeType l_run_mode;
MAIN ()
static void
query (void)
{
static GParamDef load_args[] =
{
{ PARAM_INT32, "run_mode", "Interactive, non-interactive" },
{ PARAM_STRING, "filename", "The name of the file to load" },
{ PARAM_STRING, "raw_filename", "The name of the file to load" }
};
static GParamDef load_return_vals[] =
{
{ PARAM_IMAGE, "image", "Output image" },
};
static int nload_args = sizeof (load_args) / sizeof (load_args[0]);
static int nload_return_vals = sizeof (load_return_vals)
/ sizeof (load_return_vals[0]);
static GParamDef set_load_args[] =
{
{ PARAM_INT32, "resolution", "Resolution to interprete image (dpi)" },
{ PARAM_INT32, "width", "Desired width" },
{ PARAM_INT32, "height", "Desired height" },
{ PARAM_INT32, "check_bbox", "0: Use width/height, 1: Use BoundingBox" },
{ PARAM_STRING, "pages", "Pages to load (e.g.: 1,3,5-7)" },
{ PARAM_INT32, "coloring", "4: b/w, 5: grey, 6: colour image, 7: automatic" },
{ PARAM_INT32, "TextAlphaBits", "1, 2, or 4" },
{ PARAM_INT32, "GraphicsAlphaBits", "1, 2, or 4" }
};
static int nset_load_args = sizeof (set_load_args) / sizeof (set_load_args[0]);
static GParamDef save_args[] =
{
{ PARAM_INT32, "run_mode", "Interactive, non-interactive" },
{ PARAM_IMAGE, "image", "Input image" },
{ PARAM_DRAWABLE, "drawable", "Drawable to save" },
{ PARAM_STRING, "filename", "The name of the file to save the image in" },
{ PARAM_STRING, "raw_filename",
"The name of the file to save the image in" },
{ PARAM_FLOAT, "width", "Width of the image in PostScript file" },
{ PARAM_FLOAT, "height", "Height of image in PostScript file" },
{ PARAM_FLOAT, "x_offset", "X-offset to image from lower left corner" },
{ PARAM_FLOAT, "y_offset", "Y-offset to image from lower left corner" },
{ PARAM_INT32, "unit", "0: inches, 1: millimeters" },
{ PARAM_INT32, "keep_ratio", "0: use width/height, 1: keep aspect ratio" },
{ PARAM_INT32, "rotation", "0, 90, 180, 270" }
};
static int nsave_args = sizeof (save_args) / sizeof (save_args[0]);
gimp_install_procedure ("file_ps_load",
"load file of PostScript/PDF file format",
"load file of PostScript/PDF file format",
"Peter Kirchgessner",
"Peter Kirchgessner",
"1997",
"<Load>/PostScript",
NULL,
PROC_PLUG_IN,
nload_args, nload_return_vals,
load_args, load_return_vals);
gimp_install_procedure ("file_ps_load_setargs",
"set additional parameters for procedure file_ps_load",
"set additional parameters for procedure file_ps_load",
"Peter Kirchgessner",
"Peter Kirchgessner",
"1997",
NULL,
NULL,
PROC_PLUG_IN,
nset_load_args, 0,
set_load_args, NULL);
gimp_install_procedure ("file_ps_save",
"save file in PostScript file format",
"PostScript saving handles all image types except \
those with alpha channels.",
"Peter Kirchgessner",
"Peter Kirchgessner",
"1997",
"<Save>/PostScript",
"RGB*, GRAY*, INDEXED*",
PROC_PLUG_IN,
nsave_args, 0,
save_args, NULL);
/* Register file plugin by plugin name and handable extensions */
gimp_register_magic_load_handler ("file_ps_load", "ps", "",
"0,string,%!,0,string,%PDF");
gimp_register_save_handler ("file_ps_save", "ps", "");
}
static void
run (char *name,
int nparams,
GParam *param,
int *nreturn_vals,
GParam **return_vals)
{
static GParam values[2];
GRunModeType run_mode;
GStatusType status = STATUS_SUCCESS;
gint32 image_ID = -1;
l_run_mode = run_mode = param[0].data.d_int32;
*nreturn_vals = 1;
*return_vals = values;
values[0].type = PARAM_STATUS;
values[0].data.d_status = STATUS_CALLING_ERROR;
if (strcmp (name, "file_ps_load") == 0)
{
*nreturn_vals = 2;
values[1].type = PARAM_IMAGE;
values[1].data.d_image = -1;
switch (run_mode)
{
case RUN_INTERACTIVE:
/* Possibly retrieve data */
gimp_get_data ("file_ps_load", &plvals);
if (!load_dialog ()) return;
break;
case RUN_NONINTERACTIVE:
/* Make sure all the arguments are there! */
if (nparams != 3)
status = STATUS_CALLING_ERROR;
else /* Get additional interpretation arguments */
gimp_get_data ("file_ps_load", &plvals);
break;
case RUN_WITH_LAST_VALS:
/* Possibly retrieve data */
gimp_get_data ("file_ps_load", &plvals);
break;
default:
break;
}
if (status == STATUS_SUCCESS)
{
check_load_vals ();
image_ID = load_image (param[1].data.d_string);
status = (image_ID != -1) ? STATUS_SUCCESS : STATUS_EXECUTION_ERROR;
/* Store plvals data */
if (status == STATUS_SUCCESS)
gimp_set_data ("file_ps_load", &plvals, sizeof (PSLoadVals));
}
values[0].data.d_status = status;
values[1].data.d_image = image_ID;
}
else if (strcmp (name, "file_ps_save") == 0)
{
switch (run_mode)
{
case RUN_INTERACTIVE:
/* Possibly retrieve data */
gimp_get_data ("file_ps_save", &psvals);
/* First acquire information with a dialog */
if (! save_dialog ())
return;
break;
case RUN_NONINTERACTIVE:
/* Make sure all the arguments are there! */
if (nparams != 12)
{
status = STATUS_CALLING_ERROR;
}
else
{
psvals.width = param[5].data.d_float;
psvals.height = param[6].data.d_float;
psvals.x_offset = param[7].data.d_float;
psvals.y_offset = param[8].data.d_float;
psvals.unit_mm = (param[9].data.d_int32 != 0);
psvals.keep_ratio = (param[10].data.d_int32 != 0);
psvals.rotate = param[11].data.d_int32;
}
break;
case RUN_WITH_LAST_VALS:
/* Possibly retrieve data */
gimp_get_data ("file_ps_save", &psvals);
break;
default:
break;
}
if (status == STATUS_SUCCESS)
{
check_save_vals ();
if (save_image (param[3].data.d_string, param[1].data.d_int32,
param[2].data.d_int32))
{
/* Store psvals data */
gimp_set_data ("file_ps_save", &psvals, sizeof (PSSaveVals));
}
else
{
status = STATUS_EXECUTION_ERROR;
}
}
values[0].data.d_status = status;
}
else if (strcmp (name, "file_ps_load_setargs") == 0)
{
/* Make sure all the arguments are there! */
if (nparams != 8)
{
status = STATUS_CALLING_ERROR;
}
else
{
plvals.resolution = param[0].data.d_int32;
plvals.width = param[1].data.d_int32;
plvals.height = param[2].data.d_int32;
plvals.use_bbox = param[3].data.d_int32;
if (param[4].data.d_string != NULL)
strncpy (plvals.pages,param[4].data.d_string,sizeof (plvals.pages));
else
plvals.pages[0] = '\0';
plvals.pages[sizeof (plvals.pages) - 1] = '\0';
plvals.pnm_type = param[5].data.d_int32;
plvals.textalpha = param[6].data.d_int32;
plvals.graphicsalpha = param[7].data.d_int32;
check_load_vals ();
gimp_set_data ("file_ps_load", &plvals, sizeof (PSLoadVals));
}
values[0].data.d_status = status;
}
}
static gint32
load_image (char *filename)
{
gint32 image_ID, *image_list, *nl;
guint page_count;
FILE *ifp;
char *temp,*format;
int llx, lly, urx, ury;
int k, n_images, max_images, max_pagenum;
#ifdef PS_DEBUG
printf ("load_image:\n resolution = %d\n", plvals.resolution);
printf (" %dx%d pixels\n", plvals.width, plvals.height);
printf (" BoundingBox: %d\n", plvals.use_bbox);
printf (" Colouring: %d\n", plvals.pnm_type);
printf (" TextAlphaBits: %d\n", plvals.textalpha);
printf (" GraphicsAlphaBits: %d\n", plvals.graphicsalpha);
#endif
/* Try to see if PostScript file is available */
ifp = fopen (filename, "r");
if (ifp == NULL)
{
show_message ("can't open file for reading");
return (-1);
}
fclose (ifp);
if (l_run_mode != RUN_NONINTERACTIVE)
{
format = "Interpreting and Loading %s:";
temp = g_malloc (strlen (format) + strlen (filename) + 5);
sprintf (temp, format, filename);
gimp_progress_init (temp);
g_free (temp);
}
ifp = ps_open (filename, &plvals, &llx, &lly, &urx, &ury);
if (!ifp)
{
show_message ("can't interprete file");
return (-1);
}
image_list = (gint32 *)g_malloc (10 * sizeof (gint32));
if (image_list == NULL)
{
show_message ("out of memory");
return (-1);
}
n_images = 0;
max_images = 10;
max_pagenum = 9999; /* Try to get the maximum pagenumber to read */
if (!page_in_list (plvals.pages, max_pagenum)) /* Is there a limit in list ? */
{
max_pagenum = -1;
for (temp = plvals.pages; *temp != '\0'; temp++)
{
if ((*temp < '0') || (*temp > '9')) continue; /* Search next digit */
sscanf (temp, "%d", &k);
if (k > max_pagenum) max_pagenum = k;
while ((*temp >= '0') && (*temp <= '9')) temp++;
temp--;
}
if (max_pagenum < 1) max_pagenum = 9999;
}
/* Load all images */
for (page_count = 1; page_count <= max_pagenum; page_count++)
{
if (page_in_list (plvals.pages, page_count))
{
image_ID = load_ps (filename, page_count, ifp, llx, lly, urx, ury);
if (image_ID == -1) break;
if (n_images == max_images)
{
nl = (gint32 *)g_realloc (image_list, (max_images+10)*sizeof (gint32));
if (nl == NULL) break;
image_list = nl;
max_images += 10;
}
image_list[n_images++] = image_ID;
}
else /* Skip an image */
{
image_ID = skip_ps (ifp);
if (image_ID == -1) break;
}
}
ps_close (ifp);
/* Display images in reverse order. The last will be displayed by GIMP itself*/
if (l_run_mode != RUN_NONINTERACTIVE)
{
for (k = n_images-1; k >= 1; k--)
gimp_display_new (image_list[k]);
}
image_ID = (n_images > 0) ? image_list[0] : -1;
g_free (image_list);
return (image_ID);
}
static gint
save_image (char *filename,
gint32 image_ID,
gint32 drawable_ID)
{
FILE* ofp;
GDrawableType drawable_type;
gint retval;
char *temp = ident; /* Just to satisfy lint/gcc */
/* initialize */
retval = 0;
drawable_type = gimp_drawable_type (drawable_ID);
/* Make sure we're not saving an image with an alpha channel */
if (gimp_drawable_has_alpha (drawable_ID))
{
show_message ("PostScript save cannot handle images with alpha channels");
return FALSE;
}
switch (drawable_type)
{
case INDEXED_IMAGE:
case GRAY_IMAGE:
case RGB_IMAGE:
break;
default:
show_message ("cannot operate on unknown image types");
return (FALSE);
break;
}
/* Open the output file. */
ofp = fopen (filename, "wb");
if (!ofp)
{
show_message ("cant open file for writing");
return (FALSE);
}
if (l_run_mode != RUN_NONINTERACTIVE)
{
temp = g_malloc (strlen (filename) + 11);
sprintf (temp, "Saving %s:", filename);
gimp_progress_init (temp);
g_free (temp);
}
save_ps_header (ofp, filename);
if (drawable_type == GRAY_IMAGE)
retval = save_gray (ofp,image_ID, drawable_ID, &psvals);
else if (drawable_type == INDEXED_IMAGE)
retval = save_index (ofp,image_ID, drawable_ID, &psvals);
else if (drawable_type == RGB_IMAGE)
retval = save_rgb (ofp,image_ID, drawable_ID, &psvals);
save_ps_trailer (ofp);
fclose (ofp);
return (retval);
}
/* Check (and correct) the load values plvals */
static void
check_load_vals (void)
{
if (plvals.resolution < 5) plvals.resolution = 5;
else if (plvals.resolution > 1440) plvals.resolution = 1440;
if (plvals.width < 2) plvals.width = 2;
if (plvals.height < 2) plvals.height = 2;
plvals.use_bbox = (plvals.use_bbox != 0);
if (plvals.pages[0] == '\0')
strcpy (plvals.pages, "1-99");
if ((plvals.pnm_type < 4) || (plvals.pnm_type > 7))
plvals.pnm_type = 6;
if ( (plvals.textalpha != 1) && (plvals.textalpha != 2)
&& (plvals.textalpha != 4))
plvals.textalpha = 1;
if ( (plvals.graphicsalpha != 1) && (plvals.graphicsalpha != 2)
&& (plvals.graphicsalpha != 4))
plvals.graphicsalpha = 1;
}
/* Check (and correct) the save values psvals */
static void
check_save_vals (void)
{int i;
i = psvals.rotate;
if ((i != 0) && (i != 90) && (i != 180) && (i != 270))
psvals.rotate = 90;
}
/* Convert float to ascii for use in labels (cuts off trailing blanks). */
/* The pointer returned is only valid up to the next call of the function. */
static char *ftoa (char *format,
double r)
{static char buffer[32];
register int n;
sprintf (buffer, format, r);
n = strlen (buffer)-1;
while ((n >= 0) && (buffer[n] == ' '))
buffer[n--] = '\0';
return (buffer);
}
/* Check if a page is in a given list */
static gint
page_in_list (char *list,
guint page_num)
{char tmplist[STR_LENGTH], *c0, *c1;
int state, start_num, end_num;
#define READ_STARTNUM 0
#define READ_ENDNUM 1
#define CHK_LIST(a,b,c) {int low=(a),high=(b),swp; \
if ((low>0) && (high>0)) { \
if (low>high) {swp=low; low=high; high=swp;} \
if ((low<=(c))&&(high>=(c))) return (1); } }
if ((list == NULL) || (*list == '\0')) return (1);
strncpy (tmplist, list, STR_LENGTH);
tmplist[STR_LENGTH-1] = '\0';
c0 = c1 = tmplist;
while (*c1) /* Remove all whitespace and break on unsupported characters */
{
if ((*c1 >= '0') && (*c1 <= '9'))
{
*(c0++) = *c1;
}
else if ((*c1 == '-') || (*c1 == ','))
{ /* Try to remove double occurances of these characters */
if (c0 == tmplist)
{
*(c0++) = *c1;
}
else
{
if (*(c0-1) != *c1)
*(c0++) = *c1;
}
}
else break;
c1++;
}
if (c0 == tmplist) return (1);
*c0 = '\0';
/* Now we have a comma separated list like 1-4-1,-3,1- */
start_num = end_num = -1;
state = READ_STARTNUM;
for (c0 = tmplist; *c0 != '\0'; c0++)
{
switch (state)
{
case READ_STARTNUM:
if (*c0 == ',')
{
if ((start_num > 0) && (start_num == (int)page_num)) return (-1);
start_num = -1;
}
else if (*c0 == '-')
{
if (start_num < 0) start_num = 1;
state = READ_ENDNUM;
}
else /* '0' - '9' */
{
if (start_num < 0) start_num = 0;
start_num *= 10;
start_num += *c0 - '0';
}
break;
case READ_ENDNUM:
if (*c0 == ',')
{
if (end_num < 0) end_num = 9999;
CHK_LIST (start_num, end_num, (int)page_num);
start_num = end_num = -1;
state = READ_STARTNUM;
}
else if (*c0 == '-')
{
CHK_LIST (start_num, end_num, (int)page_num);
start_num = end_num;
end_num = -1;
}
else /* '0' - '9' */
{
if (end_num < 0) end_num = 0;
end_num *= 10;
end_num += *c0 - '0';
}
break;
}
}
if (state == READ_STARTNUM)
{
if (start_num > 0)
return (start_num == (int)page_num);
}
else
{
if (end_num < 0) end_num = 9999;
CHK_LIST (start_num, end_num, (int)page_num);
}
return (0);
#undef CHK_LIST
}
/* Get the BoundingBox of a PostScript file. On success, 0 is returned. */
/* On failure, -1 is returned. */
static gint
get_bbox (char *filename,
int *x0,
int *y0,
int *x1,
int *y1)
{char line[1024], *src;
FILE *ifp;
int retval = -1;
ifp = fopen (filename, "rb");
if (ifp == NULL) return (-1);
for (;;)
{
if (fgets (line, sizeof (line)-1, ifp) == NULL) break;
if ((line[0] != '%') || (line[1] != '%')) continue;
src = &(line[2]);
while ((*src == ' ') || (*src == '\t')) src++;
if (strncmp (src, "BoundingBox", 11) != 0) continue;
src += 11;
while ((*src == ' ') || (*src == '\t') || (*src == ':')) src++;
if (strncmp (src, "(atend)", 7) == 0) continue;
if (sscanf (src, "%d%d%d%d", x0, y0, x1, y1) == 4)
retval = 0;
break;
}
fclose (ifp);
return (retval);
}
/* Open the PostScript file. On failure, NULL is returned. */
/* The filepointer returned will give a PNM-file generated */
/* by the PostScript-interpreter. */
static FILE *
ps_open (char *filename,
const PSLoadVals *loadopt,
int *llx,
int *lly,
int *urx,
int *ury)
{char *cmd, *gs, *gs_opts, *driver, *pnmfile;
FILE *fd_popen;
int width, height, resolution;
int x0, y0, x1, y1;
int is_pdf;
char TextAlphaBits[64], GraphicsAlphaBits[64], geometry[32];
resolution = loadopt->resolution;
*llx = *lly = 0;
width = loadopt->width;
height = loadopt->height;
*urx = width-1;
*ury = height-1;
/* Check if the file is a PDF. For PDF, we cant set geometry */
is_pdf = 0;
fd_popen = fopen (filename, "r");
if (fd_popen != NULL)
{char hdr[4];
fread (hdr, 1, 4, fd_popen);
is_pdf = (strncmp (hdr, "%PDF", 4) == 0);
fclose (fd_popen);
}
if ((!is_pdf) && (loadopt->use_bbox)) /* Try the BoundingBox ? */
{
if ( (get_bbox (filename, &x0, &y0, &x1, &y1) == 0)
&& (x0 >= 0) && (y0 >= 0) && (x1 > x0) && (y1 > y0))
{
*llx = (int)((x0/72.0) * resolution + 0.01);
*lly = (int)((y0/72.0) * resolution + 0.01);
*urx = (int)((x1/72.0) * resolution + 0.01);
*ury = (int)((y1/72.0) * resolution + 0.01);
width = *urx + 1;
height = *ury + 1;
}
}
if (loadopt->pnm_type == 4) driver = "pbmraw";
else if (loadopt->pnm_type == 5) driver = "pgmraw";
else if (loadopt->pnm_type == 7) driver = "pnmraw";
else driver = "ppmraw";
pnmfile = "-";
gs = getenv ("GS_PROG");
if (gs == NULL) gs = "gs";
gs_opts = getenv ("GS_OPTIONS");
if (gs_opts == NULL)
gs_opts = "-dSAFER";
else
gs_opts = ""; /* Ghostscript will add these options */
cmd = g_malloc (strlen (filename) + strlen (gs) + strlen (gs_opts)
+ strlen (pnmfile) + 256 );
if (cmd == NULL) return (NULL);
TextAlphaBits[0] = GraphicsAlphaBits[0] = geometry[0] = '\0';
/* Antialiasing not available for PBM-device */
if ((loadopt->pnm_type != 4) && (loadopt->textalpha != 1))
sprintf (TextAlphaBits, "-dTextAlphaBits=%d ", (int)loadopt->textalpha);
if ((loadopt->pnm_type != 4) && (loadopt->graphicsalpha != 1))
sprintf (GraphicsAlphaBits, "-dGraphicsAlphaBits=%d ",
(int)loadopt->graphicsalpha);
if (!is_pdf) /* For PDF, we cant set geometry */
sprintf (geometry,"-g%dx%d ", width, height);
sprintf (cmd, "%s -sDEVICE=%s -r%d %s%s%s-q -dNOPAUSE %s \
-sOutputFile=%s %s -c quit", gs, driver, resolution, geometry,
TextAlphaBits, GraphicsAlphaBits, gs_opts, pnmfile, filename);
#ifdef PS_DEBUG
printf ("Going to start ghostscript with:\n%s\n", cmd);
#endif
/* Start the command and use a pipe for reading the PNM-file. */
/* If someone does not like the pipe (or it does not work), just start */
/* ghostscript with a real outputfile. When ghostscript has finished, */
/* open the outputfile and return its filepointer. But be sure */
/* to close and remove the file within ps_close(). */
fd_popen = popen (cmd, "r");
g_free (cmd);
return (fd_popen);
}
/* Close the PNM-File of the PostScript interpreter */
static void
ps_close (FILE *ifp)
{
/* Finish reading from pipe. */
/* If a real outputfile was used, close the file and remove it. */
pclose (ifp);
}
/* Read the header of a raw PNM-file and return type (4-6) or -1 on failure */
static gint
read_pnmraw_type (FILE *ifp,
int *width,
int *height,
int *maxval)
{register int frst, scnd, thrd;
gint pnmtype;
char line[1024];
/* GhostScript may write some informational messages infront of the header. */
/* We are just looking at a Px\n in the input stream. */
frst = getc (ifp);
scnd = getc (ifp);
thrd = getc (ifp);
for (;;)
{
if (thrd == EOF) return (-1);
if ((thrd == '\n') && (frst == 'P') && (scnd >= '1') && (scnd <= '6'))
break;
frst = scnd;
scnd = thrd;
thrd = getc (ifp);
}
pnmtype = scnd - '0';
/* We dont use the ASCII-versions */
if ((pnmtype >= 1) && (pnmtype <= 3)) return (-1);
/* Read width/height */
for (;;)
{
if (fgets (line, sizeof (line)-1, ifp) == NULL) return (-1);
if (line[0] != '#') break;
}
if (sscanf (line, "%d%d", width, height) != 2) return (-1);
*maxval = 255;
if (pnmtype != 4) /* Read maxval */
{
for (;;)
{
if (fgets (line, sizeof (line)-1, ifp) == NULL) return (-1);
if (line[0] != '#') break;
}
if (sscanf (line, "%d", maxval) != 1) return (-1);
}
return (pnmtype);
}
/* Create an image. Sets layer_ID, drawable and rgn. Returns image_ID */
static gint32
create_new_image (char *filename,
guint pagenum,
guint width,
guint height,
GImageType type,
gint32 *layer_ID,
GDrawable **drawable,
GPixelRgn *pixel_rgn)
{gint32 image_ID;
GDrawableType gdtype;
char *tmp;
if (type == GRAY) gdtype = GRAY_IMAGE;
else if (type == INDEXED) gdtype = INDEXED_IMAGE;
else gdtype = RGB_IMAGE;
image_ID = gimp_image_new (width, height, type);
if ((tmp = g_malloc (strlen (filename) + 32)) != NULL)
{
sprintf (tmp, "%s-pg%ld", filename, (long)pagenum);
gimp_image_set_filename (image_ID, tmp);
g_free (tmp);
}
else
gimp_image_set_filename (image_ID, filename);
*layer_ID = gimp_layer_new (image_ID, "Background", width, height,
gdtype, 100, NORMAL_MODE);
gimp_image_add_layer (image_ID, *layer_ID, 0);
*drawable = gimp_drawable_get (*layer_ID);
gimp_pixel_rgn_init (pixel_rgn, *drawable, 0, 0, (*drawable)->width,
(*drawable)->height, TRUE, FALSE);
return (image_ID);
}
/* Skip PNM image generated from PostScript file. */
/* Returns 0 on success, -1 on failure. */
static gint32
skip_ps (FILE *ifp)
{register int k, c;
int i, pnmtype, width, height, maxval, bpl;
pnmtype = read_pnmraw_type (ifp, &width, &height, &maxval);
if (pnmtype == 4) /* Portable bitmap */
bpl = (width + 7)/8;
else if (pnmtype == 5)
bpl = width;
else if (pnmtype == 6)
bpl = width*3;
else
return (-1);
for (i = 0; i < height; i++)
{
k = bpl; c = EOF;
while (k-- > 0) c = getc (ifp);
if (c == EOF) return (-1);
if ((l_run_mode != RUN_NONINTERACTIVE) && ((i % 20) == 0))
gimp_progress_update ((double)(i+1) / (double)height);
}
return (0);
}
/* Load PNM image generated from PostScript file */
static gint32
load_ps (char *filename,
guint pagenum,
FILE *ifp,
int llx,
int lly,
int urx,
int ury)
{register unsigned char *dest;
unsigned char *data, *bitline = NULL, *byteline = NULL, *byteptr, *temp;
unsigned char bit2byte[256*8];
int width, height, tile_height, scan_lines, total_scan_lines;
int image_width, image_height;
int skip_left, skip_bottom;
int i, j, pnmtype, maxval, bpp, nread;
GImageType imagetype;
gint32 layer_ID, image_ID;
GPixelRgn pixel_rgn;
GDrawable *drawable;
int err = 0, e;
pnmtype = read_pnmraw_type (ifp, &width, &height, &maxval);
if ((width == urx+1) && (height == ury+1)) /* gs respected BoundingBox ? */
{
skip_left = llx; skip_bottom = lly;
image_width = width - skip_left;
image_height = height - skip_bottom;
}
else
{
skip_left = skip_bottom = 0;
image_width = width;
image_height = height;
}
if (pnmtype == 4) /* Portable Bitmap */
{
imagetype = INDEXED;
nread = (width+7)/8;
bpp = 1;
bitline = (unsigned char *)g_malloc (nread);
if (bitline == NULL) return (-1);
byteline = (unsigned char *)g_malloc (nread*8);
if (byteline == NULL) { g_free (bitline); return (-1); }
/* Get an array for mapping 8 bits in a byte to 8 bytes */
temp = bit2byte;
for (j = 0; j < 256; j++)
for (i = 7; i >= 0; i--)
*(temp++) = ((j & (1 << i)) != 0);
}
else if (pnmtype == 5) /* Portable Greymap */
{
imagetype = GRAY;
nread = width;
bpp = 1;
byteline = (unsigned char *)g_malloc (nread);
if (byteline == NULL) return (-1);
}
else if (pnmtype == 6) /* Portable Pixmap */
{
imagetype = RGB;
nread = width * 3;
bpp = 3;
byteline = (unsigned char *)g_malloc (nread);
if (byteline == NULL) return (-1);
}
else return (-1);
image_ID = create_new_image (filename, pagenum,
image_width, image_height, imagetype,
&layer_ID, &drawable, &pixel_rgn);
tile_height = gimp_tile_height ();
data = g_malloc (tile_height * image_width * bpp);
dest = data;
total_scan_lines = scan_lines = 0;
if (pnmtype == 4) /* Read bitimage ? Must be mapped to indexed */
{static unsigned char BWColorMap[2*3] = { 255, 255, 255, 0, 0, 0 };
gimp_image_set_cmap (image_ID, BWColorMap, 2);
for (i = 0; i < height; i++)
{
e = (fread (bitline, 1, nread, ifp) != nread);
if (total_scan_lines >= image_height) continue;
err |= e;
if (err) break;
j = width; /* Map 1 byte of bitimage to 8 bytes of indexed image */
temp = bitline;
byteptr = byteline;
while (j >= 8)
{
memcpy (byteptr, bit2byte + *(temp++)*8, 8);
byteptr += 8;
j -= 8;
}
if (j > 0)
memcpy (byteptr, bit2byte + *temp*8, j);
memcpy (dest, byteline+skip_left, image_width);
dest += image_width;
scan_lines++;
total_scan_lines++;
if ((l_run_mode != RUN_NONINTERACTIVE) && ((i % 20) == 0))
gimp_progress_update ((double)(i+1) / (double)image_height);
if ((scan_lines == tile_height) || ((i+1) == image_height))
{
gimp_pixel_rgn_set_rect (&pixel_rgn, data, 0, i-scan_lines+1,
image_width, scan_lines);
scan_lines = 0;
dest = data;
}
if (err) break;
}
}
else /* Read gray/rgb-image */
{
for (i = 0; i < height; i++)
{
e = (fread (byteline, bpp, width, ifp) != width);
if (total_scan_lines >= image_height) continue;
err |= e;
if (err) break;
memcpy (dest, byteline+skip_left*bpp, image_width*bpp);
dest += image_width*bpp;
scan_lines++;
total_scan_lines++;
if ((l_run_mode != RUN_NONINTERACTIVE) && ((i % 20) == 0))
gimp_progress_update ((double)(i+1) / (double)image_height);
if ((scan_lines == tile_height) || ((i+1) == image_height))
{
gimp_pixel_rgn_set_rect (&pixel_rgn, data, 0, i-scan_lines+1,
image_width, scan_lines);
scan_lines = 0;
dest = data;
}
if (err) break;
}
}
g_free (data);
if (byteline) g_free (byteline);
if (bitline) g_free (bitline);
if (err)
show_message ("EOF encountered on reading");
gimp_drawable_flush (drawable);
return (err ? -1 : image_ID);
}
/* Write out the PostScript file header */
static void save_ps_header (FILE *ofp,
char *filename)
{time_t cutime = time (NULL);
fprintf (ofp, "%%!PS-Adobe-3.0\n");
fprintf (ofp, "%%%%Creator: GIMP PostScript file plugin V %4.2f \
by Peter Kirchgessner\n", VERSIO);
fprintf (ofp, "%%%%Title: %s\n", filename);
fprintf (ofp, "%%%%CreationDate: %s", ctime (&cutime));
fprintf (ofp, "%%%%DocumentData: Clean7Bit\n");
fprintf (ofp, "%%%%Pages: 1\n");
}
/* Write out transformation for image */
static void
save_ps_transform (FILE *ofp,
int width,
int height,
int bpp)
{double x_offset, y_offset, x_size, y_size;
double x_scale, y_scale;
double width_inch, height_inch;
double f1, f2, dx, dy;
int xtrans, ytrans;
/* initialize */
dx = 0.0;
dy = 0.0;
x_offset = psvals.x_offset;
y_offset = psvals.y_offset;
width_inch = fabs (psvals.width);
height_inch = fabs (psvals.height);
if (psvals.unit_mm)
{
x_offset /= 25.4; y_offset /= 25.4;
width_inch /= 25.4; height_inch /= 25.4;
}
if (psvals.keep_ratio) /* Proportions to keep ? */
{ /* Fit the image into the allowed size */
f1 = width_inch / width;
f2 = height_inch / height;
if (f1 < f2)
height_inch = width_inch * (double)(height)/(double)(width);
else
width_inch = fabs (height_inch) * (double)(width)/(double)(height);
}
if ((psvals.rotate == 0) || (psvals.rotate == 180))
{ x_size = width_inch; y_size = height_inch; }
else
{ y_size = width_inch; x_size = height_inch; }
fprintf (ofp, "%%%%BoundingBox: %d %d %d %d\n",(int)(x_offset*72.0),
(int)(y_offset*72.0), (int)((x_offset+x_size)*72.0)+1,
(int)((y_offset+y_size)*72.0)+1);
fprintf (ofp, "%%%%EndComments\n");
fprintf (ofp, "%%%%BeginProlog\n");
fprintf (ofp, "%% Use own dictionary to avoid conflicts\n");
fprintf (ofp, "5 dict begin\n");
fprintf (ofp, "%%%%EndProlog\n");
fprintf (ofp, "%%%%Page: 1 1\n");
fprintf (ofp, "%% Translate for offset\n");
fprintf (ofp, "%f %f translate\n", x_offset*72.0, y_offset*72.0);
/* Calculate translation to startpoint of first scanline */
switch (psvals.rotate)
{
case 0: dx = 0.0; dy = y_size*72.0;
break;
case 90: dx = dy = 0.0;
x_scale = 72.0 * width_inch;
y_scale = -72.0 * height_inch;
break;
case 180: dx = x_size*72.0; dy = 0.0; break;
case 270: dx = x_size*72.0; dy = y_size*72.0; break;
}
if ((dx != 0.0) || (dy != 0.0))
fprintf (ofp, "%% Translate to begin of first scanline\n%f %f translate\n",
dx, dy);
if (psvals.rotate)
fprintf (ofp, "%d rotate\n", (int)psvals.rotate);
fprintf (ofp, "%f %f scale\n", 72.0*width_inch, -72.0*height_inch);
/* Write the PostScript procedures to read the image */
fprintf (ofp, "%% Variable to keep one line of raster data\n");
fprintf (ofp, "/scanline %d %d mul string def\n", width, bpp);
fprintf (ofp, "%% Image geometry\n%d %d 8\n", width, height);
fprintf (ofp, "%% Transformation matrix\n");
xtrans = ytrans = 0;
if (psvals.width < 0.0) { width = -width; xtrans = -width; }
if (psvals.height < 0.0) { height = -height; ytrans = -height; }
fprintf (ofp, "[ %d 0 0 %d %d %d ]\n", width, height, xtrans, ytrans);
}
static void save_ps_trailer (FILE *ofp)
{
fprintf (ofp, "%%Trailer\n");
fprintf (ofp, "end\n%%EOF\n");
}
static gint
save_gray (FILE *ofp,
gint32 image_ID,
gint32 drawable_ID,
const PSSaveVals *saveopt)
{ int height, width, i, j;
int tile_height;
unsigned char *data, *src;
GPixelRgn pixel_rgn;
GDrawable *drawable;
GDrawableType drawable_type;
static char *hex = "0123456789abcdef";
drawable = gimp_drawable_get (drawable_ID);
drawable_type = gimp_drawable_type (drawable_ID);
width = drawable->width;
height = drawable->height;
tile_height = gimp_tile_height ();
gimp_pixel_rgn_init (&pixel_rgn, drawable, 0, 0, width, height, FALSE, FALSE);
/* allocate a buffer for retrieving information from the pixel region */
src = data = (unsigned char *)g_malloc (tile_height * width * drawable->bpp);
/* Set up transformation in PostScript */
save_ps_transform (ofp, width, height, 1);
/* Write read image procedure */
fprintf (ofp, "{ currentfile scanline readhexstring pop }\n");
fprintf (ofp, "image\n");
#define GET_GRAY_TILE(begin) \
{int scan_lines; \
scan_lines = (i+tile_height-1 < height) ? tile_height : (height-i); \
gimp_pixel_rgn_get_rect (&pixel_rgn, begin, 0, i, width, scan_lines); \
src = begin; }
for (i = 0; i < height; i++)
{
if ((i % tile_height) == 0) GET_GRAY_TILE (data); /* Get more data */
for (j = 0; j < width; j++)
{
putc (hex[(*src) >> 4], ofp);
putc (hex[(*(src++)) & 0x0f], ofp);
if (((j+1) % 39) == 0) putc ('\n', ofp);
}
putc ('\n', ofp);
if ((l_run_mode != RUN_NONINTERACTIVE) && ((i % 20) == 0))
gimp_progress_update ((double) i / (double) height);
}
fprintf (ofp, "showpage\n");
g_free (data);
gimp_drawable_detach (drawable);
if (ferror (ofp))
{
show_message ("write error occured");
return (FALSE);
}
return (TRUE);
#undef GET_GRAY_TILE
}
static gint
save_index (FILE *ofp,
gint32 image_ID,
gint32 drawable_ID,
const PSSaveVals *saveopt)
{ int height, width, i, j;
int ncols;
int tile_height;
unsigned char *cmap;
unsigned char *data, *src;
char coltab[256*6], *ct;
GPixelRgn pixel_rgn;
GDrawable *drawable;
GDrawableType drawable_type;
static char *hex = "0123456789abcdef";
static char *background = "000000";
drawable = gimp_drawable_get (drawable_ID);
drawable_type = gimp_drawable_type (drawable_ID);
width = drawable->width;
height = drawable->height;
tile_height = gimp_tile_height ();
gimp_pixel_rgn_init (&pixel_rgn, drawable, 0, 0, width, height, FALSE, FALSE);
/* allocate a buffer for retrieving information from the pixel region */
src = data = (unsigned char *)g_malloc (tile_height * width * drawable->bpp);
cmap = gimp_image_get_cmap (image_ID, &ncols);
ct = coltab;
for (j = 0; j < 256; j++)
{
if (j >= ncols)
{
memcpy (ct, background, 6);
ct += 6;
}
else
{
*(ct++) = (unsigned char)hex[(*cmap) >> 4];
*(ct++) = (unsigned char)hex[(*(cmap++)) & 0x0f];
*(ct++) = (unsigned char)hex[(*cmap) >> 4];
*(ct++) = (unsigned char)hex[(*(cmap++)) & 0x0f];
*(ct++) = (unsigned char)hex[(*cmap) >> 4];
*(ct++) = (unsigned char)hex[(*(cmap++)) & 0x0f];
}
}
/* Set up transformation in PostScript */
save_ps_transform (ofp, width, height, 3);
/* Write read image procedure */
fprintf (ofp, "{ currentfile scanline readhexstring pop } false 3\n");
fprintf (ofp, "colorimage\n");
#define GET_INDEX_TILE(begin) \
{int scan_lines; \
scan_lines = (i+tile_height-1 < height) ? tile_height : (height-i); \
gimp_pixel_rgn_get_rect (&pixel_rgn, begin, 0, i, width, scan_lines); \
src = begin; }
for (i = 0; i < height; i++)
{
if ((i % tile_height) == 0) GET_INDEX_TILE (data); /* Get more data */
for (j = 0; j < width; j++)
{
fwrite (coltab+(*(src++))*6, 6, 1, ofp);
if (((j+1) % 13) == 0) putc ('\n', ofp);
}
putc ('\n', ofp);
if ((l_run_mode != RUN_NONINTERACTIVE) && ((i % 20) == 0))
gimp_progress_update ((double) i / (double) height);
}
fprintf (ofp, "showpage\n");
g_free (data);
gimp_drawable_detach (drawable);
if (ferror (ofp))
{
show_message ("write error occured");
return (FALSE);
}
return (TRUE);
#undef GET_INDEX_TILE
}
static gint
save_rgb (FILE *ofp,
gint32 image_ID,
gint32 drawable_ID,
const PSSaveVals *saveopt)
{
int height, width, tile_height;
int i, j;
unsigned char *data, *src;
GPixelRgn pixel_rgn;
GDrawable *drawable;
GDrawableType drawable_type;
static char *hex = "0123456789abcdef";
drawable = gimp_drawable_get (drawable_ID);
drawable_type = gimp_drawable_type (drawable_ID);
width = drawable->width;
height = drawable->height;
tile_height = gimp_tile_height ();
gimp_pixel_rgn_init (&pixel_rgn, drawable, 0, 0, width, height, FALSE, FALSE);
/* allocate a buffer for retrieving information from the pixel region */
src = data = (unsigned char *)g_malloc (tile_height * width * drawable->bpp);
/* Set up transformation in PostScript */
save_ps_transform (ofp, width, height, 3);
/* Write read image procedure */
fprintf (ofp, "{ currentfile scanline readhexstring pop } false 3\n");
fprintf (ofp, "colorimage\n");
#define GET_RGB_TILE(begin) \
{int scan_lines; \
scan_lines = (i+tile_height-1 < height) ? tile_height : (height-i); \
gimp_pixel_rgn_get_rect (&pixel_rgn, begin, 0, i, width, scan_lines); \
src = begin; }
for (i = 0; i < height; i++)
{
if ((i % tile_height) == 0) GET_RGB_TILE (data); /* Get more data */
for (j = 0; j < width; j++)
{
putc (hex[(*src) >> 4], ofp); /* Red */
putc (hex[(*(src++)) & 0x0f], ofp);
putc (hex[(*src) >> 4], ofp); /* Green */
putc (hex[(*(src++)) & 0x0f], ofp);
putc (hex[(*src) >> 4], ofp); /* Blue */
putc (hex[(*(src++)) & 0x0f], ofp);
if (((j+1) % 13) == 0) putc ('\n', ofp);
}
putc ('\n', ofp);
if ((l_run_mode != RUN_NONINTERACTIVE) && ((i % 20) == 0))
gimp_progress_update ((double) i / (double) height);
}
fprintf (ofp, "showpage\n");
g_free (data);
gimp_drawable_detach (drawable);
if (ferror (ofp))
{
show_message ("write error occured");
return (FALSE);
}
return (TRUE);
#undef GET_RGB_TILE
}
/* Load interface functions */
static gint
load_dialog (void)
{
LoadDialogVals *vals;
GtkWidget *button;
GtkWidget *toggle;
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *label;
GtkWidget *table;
GSList *group;
gchar **argv;
gint argc;
char buffer[STR_LENGTH];
static char *label_text[] = { "Resolution:", "Width:", "Height:", "Pages:" };
static char *radio_text[] = { "b/w", "gray", "colour", "automatic" };
static char *alias_text[] = { "none", "weak", "strong" };
int j, n_prop, alias, *alpha_bits;
argc = 1;
argv = g_new (gchar *, 1);
argv[0] = g_strdup ("load");
gtk_init (&argc, &argv);
gtk_rc_parse (gimp_gtkrc ());
vals = g_malloc (sizeof (*vals));
vals->dialog = gtk_dialog_new ();
gtk_window_set_title (GTK_WINDOW (vals->dialog), "Load PostScript");
gtk_window_position (GTK_WINDOW (vals->dialog), GTK_WIN_POS_MOUSE);
gtk_signal_connect (GTK_OBJECT (vals->dialog), "destroy",
(GtkSignalFunc) load_close_callback,
NULL);
/* Action area */
button = gtk_button_new_with_label ("OK");
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) load_ok_callback,
vals);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (vals->dialog)->action_area), button,
TRUE, TRUE, 0);
gtk_widget_grab_default (button);
gtk_widget_show (button);
button = gtk_button_new_with_label ("Cancel");
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) gtk_widget_destroy,
GTK_OBJECT (vals->dialog));
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (vals->dialog)->action_area), button,
TRUE, TRUE, 0);
gtk_widget_show (button);
hbox = gtk_hbox_new (FALSE, 0);
gtk_container_border_width (GTK_CONTAINER (hbox), 0);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (vals->dialog)->vbox), hbox,
TRUE, TRUE, 0);
gtk_widget_show (hbox);
/* Rendering */
frame = gtk_frame_new ("Rendering");
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
gtk_container_border_width (GTK_CONTAINER (frame), 10);
gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
vbox = gtk_vbox_new (FALSE, 5);
gtk_container_border_width (GTK_CONTAINER (vbox), 5);
gtk_container_add (GTK_CONTAINER (frame), vbox);
/* Resolution/Width/Height/Pages labels */
n_prop = sizeof (label_text)/sizeof (label_text[0]);
table = gtk_table_new (n_prop, 2, FALSE);
gtk_table_set_row_spacings (GTK_TABLE (table), 5);
gtk_table_set_col_spacings (GTK_TABLE (table), 5);
gtk_box_pack_start (GTK_BOX (vbox), table, TRUE, TRUE, 0);
gtk_widget_show (table);
for (j = 0; j < n_prop; j++)
{
label = gtk_label_new (label_text[j]);
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, j, j+1,
GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (label);
}
/* Resolution/Width/Height/Pages Entries */
for (j = 0; j < n_prop; j++)
{
vals->entry[j] = gtk_entry_new ();
gtk_widget_set_usize (vals->entry[j], 80, 0);
if (j == 0) sprintf (buffer, "%d", (int)plvals.resolution);
else if (j == 1) sprintf (buffer, "%d", (int)plvals.width);
else if (j == 2) sprintf (buffer, "%d", (int)plvals.height);
else if (j == 3) strcpy (buffer, plvals.pages);
gtk_entry_set_text (GTK_ENTRY (vals->entry[j]), buffer);
gtk_table_attach (GTK_TABLE (table), vals->entry[j], 1, 2, j, j+1,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show (vals->entry[j]);
}
toggle = gtk_check_button_new_with_label ("try BoundingBox");
gtk_box_pack_start (GTK_BOX (vbox), toggle, TRUE, TRUE, 0);
vals->use_bbox = (plvals.use_bbox != 0);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
(GtkSignalFunc) load_toggle_update,
&(vals->use_bbox));
gtk_toggle_button_set_state (GTK_TOGGLE_BUTTON (toggle), vals->use_bbox);
gtk_widget_show (toggle);
gtk_widget_show (vbox);
gtk_widget_show (frame);
/* Colouring */
frame = gtk_frame_new ("Colouring");
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
gtk_container_border_width (GTK_CONTAINER (frame), 10);
gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
vbox = gtk_vbox_new (FALSE, 5);
gtk_container_border_width (GTK_CONTAINER (vbox), 5);
gtk_container_add (GTK_CONTAINER (frame), vbox);
group = NULL;
for (j = 0; j < 4; j++)
{
toggle = gtk_radio_button_new_with_label (group, radio_text[j]);
group = gtk_radio_button_group (GTK_RADIO_BUTTON (toggle));
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
vals->dataformat[j] = (plvals.pnm_type == j+4);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
(GtkSignalFunc) load_toggle_update,
&(vals->dataformat[j]));
gtk_toggle_button_set_state (GTK_TOGGLE_BUTTON (toggle),
vals->dataformat[j]);
gtk_widget_show (toggle);
}
gtk_widget_show (vbox);
gtk_widget_show (frame);
hbox = gtk_hbox_new (FALSE, 0);
gtk_container_border_width (GTK_CONTAINER (hbox), 0);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (vals->dialog)->vbox), hbox,
TRUE, TRUE, 0);
gtk_widget_show (hbox);
for (alias = 0; alias < 2; alias++)
{
alpha_bits = alias ? &(vals->graphicsalphabits[0])
: &(vals->textalphabits[0]);
frame = gtk_frame_new (alias ? "Graphic antialiasing":"Text antialiasing");
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
gtk_container_border_width (GTK_CONTAINER (frame), 10);
gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
vbox = gtk_vbox_new (FALSE, 5);
gtk_container_border_width (GTK_CONTAINER (vbox), 5);
gtk_container_add (GTK_CONTAINER (frame), vbox);
group = NULL;
for (j = 0; j < 3; j++)
{
toggle = gtk_radio_button_new_with_label (group, alias_text[j]);
group = gtk_radio_button_group (GTK_RADIO_BUTTON (toggle));
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
alpha_bits[j] = alias ? (plvals.graphicsalpha == (1 << j))
: (plvals.textalpha == (1 << j));
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
(GtkSignalFunc) load_toggle_update, alpha_bits+j);
gtk_toggle_button_set_state (GTK_TOGGLE_BUTTON (toggle), alpha_bits[j]);
gtk_widget_show (toggle);
}
gtk_widget_show (vbox);
gtk_widget_show (frame);
}
gtk_widget_show (vals->dialog);
gtk_main ();
gdk_flush ();
g_free (vals);
return plint.run;
}
static void
load_close_callback (GtkWidget *widget,
gpointer data)
{
gtk_main_quit ();
}
static void
load_ok_callback (GtkWidget *widget,
gpointer data)
{LoadDialogVals *vals = (LoadDialogVals *)data;
int nelem;
/* Read resolution */
plvals.resolution = atoi (gtk_entry_get_text (GTK_ENTRY (vals->entry[0])));
/* Read width */
plvals.width = atoi (gtk_entry_get_text (GTK_ENTRY (vals->entry[1])));
/* Read height */
plvals.height = atoi (gtk_entry_get_text (GTK_ENTRY (vals->entry[2])));
/* Read Pages */
nelem = sizeof (plvals.pages);
strncpy (plvals.pages, gtk_entry_get_text(GTK_ENTRY (vals->entry[3])),nelem);
plvals.pages[nelem-1] = '\0';
/* Read try BoundingBox */
plvals.use_bbox = (vals->use_bbox != 0);
/* Read colouring */
if (vals->dataformat[0] == 1) plvals.pnm_type = 4;
else if (vals->dataformat[1] == 1) plvals.pnm_type = 5;
else if (vals->dataformat[3] == 1) plvals.pnm_type = 7;
else plvals.pnm_type = 6;
/* Read TextAlphaBits */
if (vals->textalphabits[0] == 1) plvals.textalpha = 1;
else if (vals->textalphabits[1] == 1) plvals.textalpha = 2;
else if (vals->textalphabits[2] == 1) plvals.textalpha = 4;
else plvals.textalpha = 1;
/* Read GraphicsAlphaBits */
if (vals->graphicsalphabits[0] == 1) plvals.graphicsalpha = 1;
else if (vals->graphicsalphabits[1] == 1) plvals.graphicsalpha = 2;
else if (vals->graphicsalphabits[2] == 1) plvals.graphicsalpha = 4;
else plvals.graphicsalpha = 1;
plint.run = TRUE;
gtk_widget_destroy (GTK_WIDGET (vals->dialog));
}
static void
load_toggle_update (GtkWidget *widget,
gpointer data)
{
int *toggle_val;
toggle_val = (int *) data;
*toggle_val = ((GTK_TOGGLE_BUTTON (widget)->active) != 0);
}
/* Save interface functions */
static gint
save_dialog (void)
{
SaveDialogVals *vals;
GtkWidget *button;
GtkWidget *toggle;
GtkWidget *frame, *uframe;
GtkWidget *vbox, *uvbox;
GtkWidget *label;
GtkWidget *table;
GSList *group;
gchar **argv;
gint argc;
static char *label_text[] = { "Width:", "Height:", "X-offset:", "Y-offset:" };
static char *radio_text[] = { "0", "90", "180", "270" };
static char *unit_text[] = { "Inch", "Millimeter" };
int j;
double rdata;
argc = 1;
argv = g_new (gchar *, 1);
argv[0] = g_strdup ("save");
gtk_init (&argc, &argv);
gtk_rc_parse (gimp_gtkrc ());
vals = g_malloc (sizeof (*vals));
vals->dialog = gtk_dialog_new ();
gtk_window_set_title (GTK_WINDOW (vals->dialog), "Save PostScript");
gtk_window_position (GTK_WINDOW (vals->dialog), GTK_WIN_POS_MOUSE);
gtk_signal_connect (GTK_OBJECT (vals->dialog), "destroy",
(GtkSignalFunc) save_close_callback,
NULL);
/* Action area */
button = gtk_button_new_with_label ("OK");
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) save_ok_callback,
vals);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (vals->dialog)->action_area), button,
TRUE, TRUE, 0);
gtk_widget_grab_default (button);
gtk_widget_show (button);
button = gtk_button_new_with_label ("Cancel");
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) gtk_widget_destroy,
GTK_OBJECT (vals->dialog));
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (vals->dialog)->action_area), button,
TRUE, TRUE, 0);
gtk_widget_show (button);
/* Image Size */
frame = gtk_frame_new ("Image Size");
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
gtk_container_border_width (GTK_CONTAINER (frame), 10);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (vals->dialog)->vbox), frame,
FALSE, TRUE, 0);
vbox = gtk_vbox_new (FALSE, 5);
gtk_container_border_width (GTK_CONTAINER (vbox), 5);
gtk_container_add (GTK_CONTAINER (frame), vbox);
/* Width/Height/X-/Y-offset labels */
table = gtk_table_new (4, 2, FALSE);
gtk_table_set_row_spacings (GTK_TABLE (table), 5);
gtk_table_set_col_spacings (GTK_TABLE (table), 5);
gtk_box_pack_start (GTK_BOX (vbox), table, TRUE, TRUE, 0);
gtk_widget_show (table);
for (j = 0; j < 4; j++)
{
label = gtk_label_new (label_text[j]);
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, j, j+1,
GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (label);
}
/* Width/Height/X-off/Y-off Entries */
for (j = 0; j < 4; j++)
{
vals->entry[j] = gtk_entry_new ();
gtk_widget_set_usize (vals->entry[j], 100, 0);
if (j == 0) rdata = psvals.width;
else if (j == 1) rdata = psvals.height;
else if (j == 2) rdata = psvals.x_offset;
else rdata = psvals.y_offset;
gtk_entry_set_text (GTK_ENTRY (vals->entry[j]), ftoa ("%-8.2f", rdata));
gtk_table_attach (GTK_TABLE (table), vals->entry[j], 1, 2, j, j+1,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show (vals->entry[j]);
}
toggle = gtk_check_button_new_with_label ("keep aspect ratio");
gtk_box_pack_start (GTK_BOX (vbox), toggle, TRUE, TRUE, 0);
vals->keep_ratio = (psvals.keep_ratio != 0);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
(GtkSignalFunc) save_toggle_update,
&(vals->keep_ratio));
gtk_toggle_button_set_state (GTK_TOGGLE_BUTTON (toggle), vals->keep_ratio);
gtk_widget_show (toggle);
/* Unit */
uframe = gtk_frame_new ("Unit");
gtk_frame_set_shadow_type (GTK_FRAME (uframe), GTK_SHADOW_ETCHED_IN);
gtk_container_border_width (GTK_CONTAINER (uframe), 5);
gtk_box_pack_start (GTK_BOX (vbox), uframe, FALSE, FALSE, 0);
uvbox = gtk_vbox_new (FALSE, 5);
gtk_container_border_width (GTK_CONTAINER (uvbox), 5);
gtk_container_add (GTK_CONTAINER (uframe), uvbox);
group = NULL;
for (j = 0; j < 2; j++)
{
toggle = gtk_radio_button_new_with_label (group, unit_text[j]);
group = gtk_radio_button_group (GTK_RADIO_BUTTON (toggle));
gtk_box_pack_start (GTK_BOX (uvbox), toggle, FALSE, FALSE, 0);
vals->unit[j] = (psvals.unit_mm == j);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
(j == 0) ? (GtkSignalFunc) save_toggle_update :
(GtkSignalFunc) save_mm_toggle_update,
(j == 0) ? (gpointer)(&(vals->unit[j])) :
(gpointer)vals);
gtk_toggle_button_set_state (GTK_TOGGLE_BUTTON (toggle),
vals->unit[j]);
gtk_widget_show (toggle);
}
gtk_widget_show (uvbox);
gtk_widget_show (uframe);
gtk_widget_show (vbox);
gtk_widget_show (frame);
/* Rotation */
frame = gtk_frame_new ("Rotation");
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
gtk_container_border_width (GTK_CONTAINER (frame), 10);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (vals->dialog)->vbox), frame,
FALSE, TRUE, 0);
vbox = gtk_vbox_new (FALSE, 5);
gtk_container_border_width (GTK_CONTAINER (vbox), 5);
gtk_container_add (GTK_CONTAINER (frame), vbox);
group = NULL;
for (j = 0; j < 4; j++)
{
toggle = gtk_radio_button_new_with_label (group, radio_text[j]);
group = gtk_radio_button_group (GTK_RADIO_BUTTON (toggle));
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
vals->rot[j] = (psvals.rotate == j*90);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
(GtkSignalFunc) save_toggle_update,
&(vals->rot[j]));
gtk_toggle_button_set_state (GTK_TOGGLE_BUTTON (toggle),
vals->rot[j]);
gtk_widget_show (toggle);
}
gtk_widget_show (vbox);
gtk_widget_show (frame);
gtk_widget_show (vals->dialog);
gtk_main ();
gdk_flush ();
g_free (vals);
return psint.run;
}
static void
save_close_callback (GtkWidget *widget,
gpointer data)
{
gtk_main_quit ();
}
static void
save_ok_callback (GtkWidget *widget,
gpointer data)
{SaveDialogVals *vals = (SaveDialogVals *)data;
double r;
int k;
/* Read width */
k = sscanf (gtk_entry_get_text (GTK_ENTRY (vals->entry[0])), "%lf", &r);
if (k == 1) psvals.width = r;
/* Read height */
k = sscanf (gtk_entry_get_text (GTK_ENTRY (vals->entry[1])), "%lf", &r);
if (k == 1) psvals.height = r;
/* Read x-offset */
k = sscanf (gtk_entry_get_text (GTK_ENTRY (vals->entry[2])), "%lf", &r);
if (k == 1) psvals.x_offset = r;
/* Read y-offset */
k = sscanf (gtk_entry_get_text (GTK_ENTRY (vals->entry[3])), "%lf", &r);
if (k == 1) psvals.y_offset = r;
/* Read keep aspect ratio */
psvals.keep_ratio = (vals->keep_ratio != 0);
/* Read unit */
if (vals->unit[0] == 1) psvals.unit_mm = 0;
else psvals.unit_mm = 1;
/* Read rotation */
if (vals->rot[1] == 1) psvals.rotate = 90;
else if (vals->rot[2] == 1) psvals.rotate = 180;
else if (vals->rot[3] == 1) psvals.rotate = 270;
else psvals.rotate = 0;
psint.run = TRUE;
gtk_widget_destroy (GTK_WIDGET (vals->dialog));
}
static void
save_toggle_update (GtkWidget *widget,
gpointer data)
{
int *toggle_val;
toggle_val = (int *) data;
*toggle_val = ((GTK_TOGGLE_BUTTON (widget)->active) != 0);
}
static void
save_mm_toggle_update (GtkWidget *widget,
gpointer data)
{ double factor = 0.0, r;
SaveDialogVals *vals = (SaveDialogVals *)data;
int newval, oldval = vals->unit[1];
int mm_to_inch, inch_to_mm, j, k;
newval = vals->unit[1] = ((GTK_TOGGLE_BUTTON (widget)->active) != 0);
mm_to_inch = (oldval == 1) && (newval == 0);
inch_to_mm = (oldval == 0) && (newval == 1);
if (mm_to_inch) factor = 1.0 / 25.4;
else if (inch_to_mm) factor = 25.4;
if (factor != 0.0)
{
for (j = 0; j < 4; j++)
{
k = sscanf (gtk_entry_get_text (GTK_ENTRY (vals->entry[j])), "%lf", &r);
if (k == 1)
{
gtk_entry_set_text (GTK_ENTRY(vals->entry[j]),ftoa("%-8.2f",r*factor));
gtk_widget_show (vals->entry[j]);
}
}
}
}
/* Show a message. Where to show it, depends on the runmode */
static void show_message (char *message)
{
#ifdef Simple_Message_Box_Available
/* If there would be a simple message box like the one */
/* used in ../app/interface.h, I would like to use it. */
if (l_run_mode == RUN_INTERACTIVE)
gtk_message_box (message);
else
#endif
fprintf (stderr, "ps: %s\n", message);
}
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