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gimp/plug-ins/common/file-ps.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
* PostScript file plugin
* PostScript writing and GhostScript interfacing code
* Copyright (C) 1997-98 Peter Kirchgessner
* (email: peter@kirchgessner.net, WWW: http://www.kirchgessner.net)
*
* Added controls for TextAlphaBits and GraphicsAlphaBits
* George White <aa056@chebucto.ns.ca>
*
* Added Ascii85 encoding
* Austin Donnelly <austin@gimp.org>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
/* 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"
* V 1.03, nn, 20-Dec-97: Initialize some variables
* V 1.04, PK, 20-Dec-97: Add Encapsulated PostScript output and preview
* V 1.05, PK, 21-Sep-98: Write b/w-images (indexed) using image-operator
* V 1.06, PK, 22-Dec-98: Fix problem with writing color PS files.
* Ghostview may hang when displaying the files.
* V 1.07, PK, 14-Sep-99: Add resolution to image
* V 1.08, PK, 16-Jan-2000: Add PostScript-Level 2 by Austin Donnelly
* V 1.09, PK, 15-Feb-2000: Force showpage on EPS-files
* Add "RunLength" compression
* Fix problem with "Level 2" toggle
* V 1.10, PK, 15-Mar-2000: For load EPSF, allow negative Bounding Box Values
* Save PS: dont start lines of image data with %%
* to prevent problems with stupid PostScript
* analyzer programs (Stanislav Brabec)
* Add BeginData/EndData comments
* Save PS: Set default rotation to 0
* V 1.11, PK, 20-Aug-2000: Fix problem with BoundingBox recognition
* for Mac files.
* Fix problem with loop when reading not all
* images of a multi page file.
* PK, 31-Aug-2000: Load PS: Add checks for space in filename.
* V 1.12 PK, 19-Jun-2001: Fix problem with command line switch --
* (reported by Ferenc Wagner)
* V 1.13 PK, 07-Apr-2002: Fix problem with DOS binary EPS files
* V 1.14 PK, 14-May-2002: Workaround EPS files of Adb. Ill. 8.0
* V 1.15 PK, 04-Oct-2002: Be more accurate with using BoundingBox
* V 1.16 PK, 22-Jan-2004: Don't use popen(), use g_spawn_async_with_pipes()
* or g_spawn_sync().
* V 1.17 PK, 19-Sep-2004: Fix problem with interpretation of bounding box
*/
#include "config.h"
#include <errno.h>
#include <string.h>
#include <time.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <glib/gstdio.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
#include <ghostscript/ierrors.h>
#include <ghostscript/iapi.h>
#include <ghostscript/gdevdsp.h>
#define VERSIO 1.17
static const gchar dversio[] = "v1.17 19-Sep-2004";
#define LOAD_PS_PROC "file-ps-load"
#define LOAD_EPS_PROC "file-eps-load"
#define LOAD_PS_SETARGS_PROC "file-ps-load-setargs"
#define LOAD_PS_THUMB_PROC "file-ps-load-thumb"
#define SAVE_PS_PROC "file-ps-save"
#define SAVE_EPS_PROC "file-eps-save"
#define PLUG_IN_BINARY "file-ps"
#define PLUG_IN_ROLE "gimp-file-ps"
#define STR_LENGTH 64
#define MIN_RESOLUTION 5
#define MAX_RESOLUTION 8192
/* Load info */
typedef struct
{
guint resolution; /* resolution (dpi) at which to run ghostscript */
guint width, height; /* desired size (ghostscript may ignore this) */
gboolean use_bbox; /* 0: use width/height, 1: try to use BoundingBox */
gchar 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;
static PSLoadVals plvals =
{
100, /* 100 dpi */
826, 1170, /* default width/height (A4) */
TRUE, /* try to use BoundingBox */
"1", /* pages to load */
6, /* use ppm (color) */
1, /* dont use text antialiasing */
1 /* dont use graphics antialiasing */
};
/* Widgets for width and height of PostScript image to
* be loaded, so that they can be updated when desired resolution is
* changed
*/
static GtkWidget *ps_width_spinbutton;
static GtkWidget *ps_height_spinbutton;
/* Save info */
typedef struct
{
gdouble width, height; /* Size of image */
gdouble x_offset, y_offset; /* Offset to image on page */
gboolean unit_mm; /* Unit of measure (0: inch, 1: mm) */
gboolean keep_ratio; /* Keep aspect ratio */
gint rotate; /* Rotation (0, 90, 180, 270) */
gint level; /* PostScript Level */
gboolean eps; /* Encapsulated PostScript flag */
gboolean preview; /* Preview Flag */
gint preview_size; /* Preview size */
} PSSaveVals;
static PSSaveVals psvals =
{
287.0, 200.0, /* Image size (A4) */
5.0, 5.0, /* Offset */
TRUE, /* Unit is mm */
TRUE, /* Keep edge ratio */
0, /* Rotate */
2, /* PostScript Level */
FALSE, /* Encapsulated PostScript flag */
FALSE, /* Preview flag */
256 /* Preview size */
};
static const char hex[] = "0123456789abcdef";
/* Declare some local functions.
*/
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static gint32 load_image (const gchar *filename,
GError **error);
static gboolean save_image (GFile *file,
gint32 image_ID,
gint32 drawable_ID,
GError **error);
static gboolean save_ps_header (GOutputStream *output,
GFile *file,
GError **error);
static gboolean save_ps_setup (GOutputStream *output,
gint32 drawable_ID,
gint width,
gint height,
gint bpp,
GError **error);
static gboolean save_ps_trailer (GOutputStream *output,
GError **error);
static gboolean save_ps_preview (GOutputStream *output,
gint32 drawable_ID,
GError **error);
static gboolean save_gray (GOutputStream *output,
gint32 image_ID,
gint32 drawable_ID,
GError **error);
static gboolean save_bw (GOutputStream *output,
gint32 image_ID,
gint32 drawable_ID,
GError **error);
static gboolean save_index (GOutputStream *output,
gint32 image_ID,
gint32 drawable_ID,
GError **error);
static gboolean save_rgb (GOutputStream *output,
gint32 image_ID,
gint32 drawable_ID,
GError **error);
static gboolean print (GOutputStream *output,
GError **error,
const gchar *format,
...) G_GNUC_PRINTF (3, 4);
static gint32 create_new_image (const gchar *filename,
guint pagenum,
guint width,
guint height,
GimpImageBaseType type,
gint32 *layer_ID);
static void check_load_vals (void);
static void check_save_vals (void);
static gint page_in_list (gchar *list,
guint pagenum);
static gint get_bbox (const gchar *filename,
gint *x0,
gint *y0,
gint *x1,
gint *y1);
static FILE * ps_open (const gchar *filename,
const PSLoadVals *loadopt,
gint *llx,
gint *lly,
gint *urx,
gint *ury,
gboolean *is_epsf);
static void ps_close (FILE *ifp);
static gboolean skip_ps (FILE *ifp);
static gint32 load_ps (const gchar *filename,
guint pagenum,
FILE *ifp,
gint llx,
gint lly,
gint urx,
gint ury);
static void dither_grey (const guchar *grey,
guchar *bw,
gint npix,
gint linecount);
/* Dialog-handling */
static gint32 count_ps_pages (const gchar *filename);
static gboolean load_dialog (const gchar *filename);
static void load_pages_entry_callback (GtkWidget *widget,
gpointer data);
static gboolean resolution_change_callback (GtkAdjustment *adjustment,
gpointer data);
typedef struct
{
GtkAdjustment *adjustment[4];
gint level;
} SaveDialogVals;
static gboolean save_dialog (void);
static void save_unit_toggle_update (GtkWidget *widget,
gpointer data);
const GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
/* The run mode */
static GimpRunMode l_run_mode;
static void compress_packbits (int nin,
unsigned char *src,
int *nout,
unsigned char *dst);
static guint32 ascii85_buf = 0;
static gint ascii85_len = 0;
static gint ascii85_linewidth = 0;
static GimpPageSelectorTarget ps_pagemode = GIMP_PAGE_SELECTOR_TARGET_LAYERS;
static void
ascii85_init (void)
{
ascii85_len = 0;
ascii85_linewidth = 0;
}
static gboolean
ascii85_flush (GOutputStream *output,
GError **error)
{
gchar c[5];
gint i;
gboolean zero_case = (ascii85_buf == 0);
GString *string = g_string_new (NULL);
static gint max_linewidth = 75;
for (i = 4; i >= 0; i--)
{
c[i] = (ascii85_buf % 85) + '!';
ascii85_buf /= 85;
}
/* check for special case: "!!!!!" becomes "z", but only if not
* at end of data. */
if (zero_case && (ascii85_len == 4))
{
if (ascii85_linewidth >= max_linewidth)
{
g_string_append_c (string, '\n');
ascii85_linewidth = 0;
}
g_string_append_c (string, 'z');
ascii85_linewidth++;
}
else
{
for (i = 0; i < ascii85_len + 1; i++)
{
if ((ascii85_linewidth >= max_linewidth) && (c[i] != '%'))
{
g_string_append_c (string, '\n');
ascii85_linewidth = 0;
}
g_string_append_c (string, c[i]);
ascii85_linewidth++;
}
}
ascii85_len = 0;
ascii85_buf = 0;
if (string->len > 0 &&
! g_output_stream_write_all (output,
string->str, string->len, NULL,
NULL, error))
{
g_string_free (string, TRUE);
return FALSE;
}
g_string_free (string, TRUE);
return TRUE;
}
static inline gboolean
ascii85_out (GOutputStream *output,
guchar byte,
GError **error)
{
if (ascii85_len == 4)
if (! ascii85_flush (output, error))
return FALSE;
ascii85_buf <<= 8;
ascii85_buf |= byte;
ascii85_len++;
return TRUE;
}
static gboolean
ascii85_nout (GOutputStream *output,
gint n,
guchar *uptr,
GError **error)
{
while (n-- > 0)
{
if (! ascii85_out (output, *uptr, error))
return FALSE;
uptr++;
}
return TRUE;
}
static gboolean
ascii85_done (GOutputStream *output,
GError **error)
{
if (ascii85_len)
{
/* zero any unfilled buffer portion, then flush */
ascii85_buf <<= (8 * (4 - ascii85_len));
if (! ascii85_flush (output, error))
return FALSE;
}
if (! print (output, error, "~>\n"))
return FALSE;
return TRUE;
}
static void
compress_packbits (int nin,
unsigned char *src,
int *nout,
unsigned char *dst)
{
unsigned char c;
int nrepeat, nliteral;
unsigned char *run_start;
unsigned char *start_dst = dst;
unsigned char *last_literal = NULL;
for (;;)
{
if (nin <= 0) break;
run_start = src;
c = *run_start;
/* Search repeat bytes */
if ((nin > 1) && (c == src[1]))
{
nrepeat = 1;
nin -= 2;
src += 2;
while ((nin > 0) && (c == *src))
{
nrepeat++;
src++;
nin--;
if (nrepeat == 127) break; /* Maximum repeat */
}
/* Add two-byte repeat to last literal run ? */
if ( (nrepeat == 1)
&& (last_literal != NULL) && (((*last_literal)+1)+2 <= 128))
{
*last_literal += 2;
*(dst++) = c;
*(dst++) = c;
continue;
}
/* Add repeat run */
*(dst++) = (unsigned char)((-nrepeat) & 0xff);
*(dst++) = c;
last_literal = NULL;
continue;
}
/* Search literal bytes */
nliteral = 1;
nin--;
src++;
for (;;)
{
if (nin <= 0) break;
if ((nin >= 2) && (src[0] == src[1])) /* A two byte repeat ? */
break;
nliteral++;
nin--;
src++;
if (nliteral == 128) break; /* Maximum literal run */
}
/* Could be added to last literal run ? */
if ((last_literal != NULL) && (((*last_literal)+1)+nliteral <= 128))
{
*last_literal += nliteral;
}
else
{
last_literal = dst;
*(dst++) = (unsigned char)(nliteral-1);
}
while (nliteral-- > 0) *(dst++) = *(run_start++);
}
*nout = dst - start_dst;
}
typedef struct
{
goffset eol;
goffset begin_data;
} PS_DATA_POS;
static PS_DATA_POS ps_data_pos = { 0, 0 };
static gboolean
ps_begin_data (GOutputStream *output,
GError **error)
{
/* %%BeginData: 123456789012 ASCII Bytes */
if (! print (output, error, "%s", "%%BeginData: "))
return FALSE;
ps_data_pos.eol = g_seekable_tell (G_SEEKABLE (output));
if (! print (output, error, "\n"))
return FALSE;
ps_data_pos.begin_data = g_seekable_tell (G_SEEKABLE (output));
return TRUE;
}
static gboolean
ps_end_data (GOutputStream *output,
GError **error)
{
goffset end_data;
gchar s[64];
if ((ps_data_pos.begin_data > 0) && (ps_data_pos.eol > 0))
{
end_data = g_seekable_tell (G_SEEKABLE (output));
if (end_data > 0)
{
g_snprintf (s, sizeof (s),
"%ld ASCII Bytes", end_data - ps_data_pos.begin_data);
if (! g_seekable_seek (G_SEEKABLE (output),
ps_data_pos.eol - strlen (s), G_SEEK_SET,
NULL, error))
return FALSE;
if (! print (output, error, "%s", s))
return FALSE;
if (! g_seekable_seek (G_SEEKABLE (output),
end_data, G_SEEK_SET,
NULL, error))
return FALSE;
}
}
if (! print (output, error, "%s\n", "%%EndData"))
return FALSE;
return TRUE;
}
MAIN ()
static void
query (void)
{
static const GimpParamDef load_args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
{ GIMP_PDB_STRING, "filename", "The name of the file to load" },
{ GIMP_PDB_STRING, "raw-filename", "The name of the file to load" }
};
static const GimpParamDef load_return_vals[] =
{
{ GIMP_PDB_IMAGE, "image", "Output image" }
};
static const GimpParamDef set_load_args[] =
{
{ GIMP_PDB_INT32, "resolution", "Resolution to interprete image (dpi)" },
{ GIMP_PDB_INT32, "width", "Desired width" },
{ GIMP_PDB_INT32, "height", "Desired height" },
{ GIMP_PDB_INT32, "check-bbox", "0: Use width/height, 1: Use BoundingBox" },
{ GIMP_PDB_STRING, "pages", "Pages to load (e.g.: 1,3,5-7)" },
{ GIMP_PDB_INT32, "coloring", "4: b/w, 5: grey, 6: color image, 7: automatic" },
{ GIMP_PDB_INT32, "text-alpha-bits", "1, 2, or 4" },
{ GIMP_PDB_INT32, "graphic-alpha-bits", "1, 2, or 4" }
};
static const GimpParamDef thumb_args[] =
{
{ GIMP_PDB_STRING, "filename", "The name of the file to load" },
{ GIMP_PDB_INT32, "thumb-size", "Preferred thumbnail size" }
};
static const GimpParamDef thumb_return_vals[] =
{
{ GIMP_PDB_IMAGE, "image", "Output image" }
};
static const GimpParamDef save_args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
{ GIMP_PDB_IMAGE, "image", "Input image" },
{ GIMP_PDB_DRAWABLE, "drawable", "Drawable to export" },
{ GIMP_PDB_STRING, "filename", "The name of the file to export the image in" },
{ GIMP_PDB_STRING, "raw-filename", "The name of the file to export the image in" },
{ GIMP_PDB_FLOAT, "width", "Width of the image in PostScript file (0: use input image size)" },
{ GIMP_PDB_FLOAT, "height", "Height of image in PostScript file (0: use input image size)" },
{ GIMP_PDB_FLOAT, "x-offset", "X-offset to image from lower left corner" },
{ GIMP_PDB_FLOAT, "y-offset", "Y-offset to image from lower left corner" },
{ GIMP_PDB_INT32, "unit", "Unit for width/height/offset. 0: inches, 1: millimeters" },
{ GIMP_PDB_INT32, "keep-ratio", "0: use width/height, 1: keep aspect ratio" },
{ GIMP_PDB_INT32, "rotation", "0, 90, 180, 270" },
{ GIMP_PDB_INT32, "eps-flag", "0: PostScript, 1: Encapsulated PostScript" },
{ GIMP_PDB_INT32, "preview", "0: no preview, >0: max. size of preview" },
{ GIMP_PDB_INT32, "level", "1: PostScript Level 1, 2: PostScript Level 2" }
};
gimp_install_procedure (LOAD_PS_PROC,
"load PostScript documents",
"load PostScript documents",
"Peter Kirchgessner <peter@kirchgessner.net>",
"Peter Kirchgessner",
dversio,
N_("PostScript document"),
NULL,
GIMP_PLUGIN,
G_N_ELEMENTS (load_args),
G_N_ELEMENTS (load_return_vals),
load_args, load_return_vals);
gimp_register_file_handler_mime (LOAD_PS_PROC, "application/postscript");
gimp_register_magic_load_handler (LOAD_PS_PROC,
"ps",
"",
"0,string,%!,0,long,0xc5d0d3c6");
gimp_install_procedure (LOAD_EPS_PROC,
"load Encapsulated PostScript images",
"load Encapsulated PostScript images",
"Peter Kirchgessner <peter@kirchgessner.net>",
"Peter Kirchgessner",
dversio,
N_("Encapsulated PostScript image"),
NULL,
GIMP_PLUGIN,
G_N_ELEMENTS (load_args),
G_N_ELEMENTS (load_return_vals),
load_args, load_return_vals);
gimp_register_file_handler_mime (LOAD_EPS_PROC, "image/x-eps");
gimp_register_magic_load_handler (LOAD_EPS_PROC,
"eps",
"",
"0,string,%!,0,long,0xc5d0d3c6");
gimp_install_procedure (LOAD_PS_SETARGS_PROC,
"set additional parameters for procedure file-ps-load",
"set additional parameters for procedure file-ps-load",
"Peter Kirchgessner <peter@kirchgessner.net>",
"Peter Kirchgessner",
dversio,
NULL,
NULL,
GIMP_PLUGIN,
G_N_ELEMENTS (set_load_args), 0,
set_load_args, NULL);
gimp_install_procedure (LOAD_PS_THUMB_PROC,
"Loads a small preview from a PostScript or PDF document",
"",
"Peter Kirchgessner <peter@kirchgessner.net>",
"Peter Kirchgessner",
dversio,
NULL,
NULL,
GIMP_PLUGIN,
G_N_ELEMENTS (thumb_args),
G_N_ELEMENTS (thumb_return_vals),
thumb_args, thumb_return_vals);
gimp_register_thumbnail_loader (LOAD_PS_PROC, LOAD_PS_THUMB_PROC);
gimp_register_thumbnail_loader (LOAD_EPS_PROC, LOAD_PS_THUMB_PROC);
gimp_install_procedure (SAVE_PS_PROC,
"export image as PostScript document",
"PostScript exporting handles all image types except "
"those with alpha channels.",
"Peter Kirchgessner <peter@kirchgessner.net>",
"Peter Kirchgessner",
dversio,
N_("PostScript document"),
"RGB, GRAY, INDEXED",
GIMP_PLUGIN,
G_N_ELEMENTS (save_args), 0,
save_args, NULL);
gimp_register_file_handler_mime (SAVE_PS_PROC, "application/postscript");
gimp_register_file_handler_uri (SAVE_PS_PROC);
gimp_register_save_handler (SAVE_PS_PROC, "ps", "");
gimp_install_procedure (SAVE_EPS_PROC,
"export image as Encapsulated PostScript image",
"PostScript exporting handles all image types except "
"those with alpha channels.",
"Peter Kirchgessner <peter@kirchgessner.net>",
"Peter Kirchgessner",
dversio,
N_("Encapsulated PostScript image"),
"RGB, GRAY, INDEXED",
GIMP_PLUGIN,
G_N_ELEMENTS (save_args), 0,
save_args, NULL);
gimp_register_file_handler_mime (SAVE_EPS_PROC, "application/x-eps");
gimp_register_file_handler_uri (SAVE_EPS_PROC);
gimp_register_save_handler (SAVE_EPS_PROC, "eps", "");
}
static void
ps_set_save_size (PSSaveVals *vals,
gint32 image_ID)
{
gdouble xres, yres, factor, iw, ih;
guint width, height;
GimpUnit unit;
gimp_image_get_resolution (image_ID, &xres, &yres);
if ((xres < 1e-5) || (yres < 1e-5))
xres = yres = 72.0;
/* Calculate size of image in inches */
width = gimp_image_width (image_ID);
height = gimp_image_height (image_ID);
iw = width / xres;
ih = height / yres;
unit = gimp_image_get_unit (image_ID);
factor = gimp_unit_get_factor (unit);
if (factor == 0.0254 ||
factor == 0.254 ||
factor == 2.54 ||
factor == 25.4)
{
vals->unit_mm = TRUE;
}
if (vals->unit_mm)
{
iw *= 25.4;
ih *= 25.4;
}
vals->width = iw;
vals->height = ih;
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[2];
GimpRunMode run_mode;
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
gint32 image_ID = -1;
gint32 drawable_ID = -1;
gint32 orig_image_ID = -1;
GimpExportReturn export = GIMP_EXPORT_CANCEL;
GError *error = NULL;
l_run_mode = run_mode = param[0].data.d_int32;
INIT_I18N ();
gegl_init (NULL, NULL);
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
if (strcmp (name, LOAD_PS_PROC) == 0 ||
strcmp (name, LOAD_EPS_PROC) == 0)
{
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
/* Possibly retrieve data */
gimp_get_data (LOAD_PS_PROC, &plvals);
if (! load_dialog (param[1].data.d_string))
status = GIMP_PDB_CANCEL;
break;
case GIMP_RUN_NONINTERACTIVE:
/* Make sure all the arguments are there! */
if (nparams != 3)
status = GIMP_PDB_CALLING_ERROR;
else /* Get additional interpretation arguments */
gimp_get_data (LOAD_PS_PROC, &plvals);
break;
case GIMP_RUN_WITH_LAST_VALS:
/* Possibly retrieve data */
gimp_get_data (LOAD_PS_PROC, &plvals);
break;
default:
break;
}
if (status == GIMP_PDB_SUCCESS)
{
check_load_vals ();
image_ID = load_image (param[1].data.d_string, &error);
if (image_ID != -1)
{
*nreturn_vals = 2;
values[1].type = GIMP_PDB_IMAGE;
values[1].data.d_image = image_ID;
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
}
/* Store plvals data */
if (status == GIMP_PDB_SUCCESS)
gimp_set_data (LOAD_PS_PROC, &plvals, sizeof (PSLoadVals));
}
else if (strcmp (name, LOAD_PS_THUMB_PROC) == 0)
{
if (nparams < 2)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
gint size = param[1].data.d_int32;
/* We should look for an embedded preview but for now we
* just load the document at a small resolution and the
* first page only.
*/
plvals.resolution = size / 4;
plvals.width = size;
plvals.height = size;
strcpy (plvals.pages, "1");
check_load_vals ();
image_ID = load_image (param[0].data.d_string, &error);
if (image_ID != -1)
{
*nreturn_vals = 2;
values[1].type = GIMP_PDB_IMAGE;
values[1].data.d_image = image_ID;
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
}
}
else if (strcmp (name, SAVE_PS_PROC) == 0 ||
strcmp (name, SAVE_EPS_PROC) == 0)
{
psvals.eps = strcmp (name, SAVE_PS_PROC);
image_ID = orig_image_ID = param[1].data.d_int32;
drawable_ID = param[2].data.d_int32;
/* eventually export the image */
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
case GIMP_RUN_WITH_LAST_VALS:
gimp_ui_init (PLUG_IN_BINARY, FALSE);
export = gimp_export_image (&image_ID, &drawable_ID,
psvals.eps ? "EPS" : "PostScript",
GIMP_EXPORT_CAN_HANDLE_RGB |
GIMP_EXPORT_CAN_HANDLE_GRAY |
GIMP_EXPORT_CAN_HANDLE_INDEXED);
if (export == GIMP_EXPORT_CANCEL)
{
values[0].data.d_status = GIMP_PDB_CANCEL;
return;
}
break;
default:
break;
}
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
/* Possibly retrieve data */
gimp_get_data (name, &psvals);
ps_set_save_size (&psvals, orig_image_ID);
/* First acquire information with a dialog */
if (! save_dialog ())
status = GIMP_PDB_CANCEL;
break;
case GIMP_RUN_NONINTERACTIVE:
/* Make sure all the arguments are there! */
if (nparams != 15)
{
status = GIMP_PDB_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;
psvals.eps = (param[12].data.d_int32 != 0);
psvals.preview = (param[13].data.d_int32 != 0);
psvals.preview_size = param[13].data.d_int32;
psvals.level = param[14].data.d_int32;
}
break;
case GIMP_RUN_WITH_LAST_VALS:
/* Possibly retrieve data */
gimp_get_data (name, &psvals);
break;
default:
break;
}
if (status == GIMP_PDB_SUCCESS)
{
if ((psvals.width == 0.0) || (psvals.height == 0.0))
ps_set_save_size (&psvals, orig_image_ID);
check_save_vals ();
if (save_image (g_file_new_for_uri (param[3].data.d_string),
image_ID, drawable_ID,
&error))
{
/* Store psvals data */
gimp_set_data (name, &psvals, sizeof (PSSaveVals));
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
}
if (export == GIMP_EXPORT_EXPORT)
gimp_image_delete (image_ID);
}
else if (strcmp (name, LOAD_PS_SETARGS_PROC) == 0)
{
/* Make sure all the arguments are there! */
if (nparams != 8)
{
status = GIMP_PDB_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 (LOAD_PS_PROC, &plvals, sizeof (PSLoadVals));
}
}
else
{
status = GIMP_PDB_CALLING_ERROR;
}
if (status != GIMP_PDB_SUCCESS && error)
{
*nreturn_vals = 2;
values[1].type = GIMP_PDB_STRING;
values[1].data.d_string = error->message;
}
values[0].data.d_status = status;
}
static gint32
load_image (const gchar *filename,
GError **error)
{
gint32 image_ID = 0;
gint32 *image_list, *nl;
guint page_count;
FILE *ifp;
gchar *temp;
gint llx, lly, urx, ury;
gint k, n_images, max_images, max_pagenum;
gboolean is_epsf;
#ifdef PS_DEBUG
g_print ("load_image:\n resolution = %d\n", plvals.resolution);
g_print (" %dx%d pixels\n", plvals.width, plvals.height);
g_print (" BoundingBox: %d\n", plvals.use_bbox);
g_print (" Coloring: %d\n", plvals.pnm_type);
g_print (" TextAlphaBits: %d\n", plvals.textalpha);
g_print (" GraphicsAlphaBits: %d\n", plvals.graphicsalpha);
#endif
gimp_progress_init_printf (_("Opening '%s'"),
gimp_filename_to_utf8 (filename));
/* Try to see if PostScript file is available */
ifp = g_fopen (filename, "r");
if (ifp == NULL)
{
g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
_("Could not open '%s' for reading: %s"),
gimp_filename_to_utf8 (filename), g_strerror (errno));
return -1;
}
fclose (ifp);
ifp = ps_open (filename, &plvals, &llx, &lly, &urx, &ury, &is_epsf);
if (!ifp)
{
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR,
_("Could not interpret PostScript file '%s'"),
gimp_filename_to_utf8 (filename));
return -1;
}
image_list = g_new (gint32, 10);
n_images = 0;
max_images = 10;
max_pagenum = 9999; /* Try to get the maximum pagenumber to read */
if (is_epsf)
max_pagenum = 1;
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;
gimp_image_set_resolution (image_ID,
(gdouble) plvals.resolution,
(gdouble) plvals.resolution);
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 = -1;
if (! skip_ps (ifp))
break;
}
}
ps_close (ifp);
if (ps_pagemode == GIMP_PAGE_SELECTOR_TARGET_LAYERS)
{
for (k = 0; k < n_images; k++)
{
gchar *name;
if (k == 0)
{
image_ID = image_list[0];
name = g_strdup_printf (_("%s-pages"), filename);
gimp_image_set_filename (image_ID, name);
g_free (name);
}
else
{
gint32 current_layer;
gint32 tmp_ID;
tmp_ID = gimp_image_get_active_drawable (image_list[k]);
name = gimp_item_get_name (tmp_ID);
current_layer = gimp_layer_new_from_drawable (tmp_ID, image_ID);
gimp_item_set_name (current_layer, name);
gimp_image_insert_layer (image_ID, current_layer, -1, -1);
gimp_image_delete (image_list[k]);
g_free (name);
}
}
gimp_image_undo_enable (image_ID);
}
else
{
/* Display images in reverse order.
* The last will be displayed by GIMP itself
*/
for (k = n_images - 1; k >= 0; k--)
{
gimp_image_undo_enable (image_list[k]);
gimp_image_clean_all (image_list[k]);
if (l_run_mode != GIMP_RUN_NONINTERACTIVE && k > 0)
gimp_display_new (image_list[k]);
}
image_ID = (n_images > 0) ? image_list[0] : -1;
}
g_free (image_list);
return image_ID;
}
static gboolean
save_image (GFile *file,
gint32 image_ID,
gint32 drawable_ID,
GError **error)
{
GOutputStream *output;
GimpImageType drawable_type;
drawable_type = gimp_drawable_type (drawable_ID);
/* Make sure we're not exporting an image with an alpha channel */
if (gimp_drawable_has_alpha (drawable_ID))
{
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("PostScript export cannot handle images with alpha channels"));
return FALSE;
}
switch (drawable_type)
{
case GIMP_INDEXED_IMAGE:
case GIMP_GRAY_IMAGE:
case GIMP_RGB_IMAGE:
break;
default:
g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Cannot operate on unknown image types."));
return FALSE;
break;
}
gimp_progress_init_printf (_("Exporting '%s'"),
gimp_file_get_utf8_name (file));
output = G_OUTPUT_STREAM (g_file_replace (file,
NULL, FALSE, G_FILE_CREATE_NONE,
NULL, error));
if (output)
{
GOutputStream *buffered;
buffered = g_buffered_output_stream_new (output);
g_object_unref (output);
output = buffered;
}
else
{
return FALSE;
}
if (! save_ps_header (output, file, error))
goto fail;
switch (drawable_type)
{
case GIMP_INDEXED_IMAGE:
if (! save_index (output, image_ID, drawable_ID, error))
goto fail;
break;
case GIMP_GRAY_IMAGE:
if (! save_gray (output, image_ID, drawable_ID, error))
goto fail;
break;
case GIMP_RGB_IMAGE:
if (! save_rgb (output, image_ID, drawable_ID, error))
goto fail;
break;
default:
g_return_val_if_reached (FALSE);
}
if (! save_ps_trailer (output, error))
goto fail;
if (! g_output_stream_close (output, NULL, error))
goto fail;
g_object_unref (output);
return TRUE;
fail:
g_object_unref (output);
return FALSE;
}
/* Check (and correct) the load values plvals */
static void
check_load_vals (void)
{
if (plvals.resolution < MIN_RESOLUTION)
plvals.resolution = MIN_RESOLUTION;
else if (plvals.resolution > MAX_RESOLUTION)
plvals.resolution = MAX_RESOLUTION;
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;
if (psvals.preview_size <= 0)
psvals.preview = FALSE;
}
/* Check if a page is in a given list */
static gint
page_in_list (gchar *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 occurrences 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
}
/* A function like fgets, but treats single CR-character as line break. */
/* As a line break the newline-character is returned. */
static char *psfgets (char *s, int size, FILE *stream)
{
int c;
char *sptr = s;
if (size <= 0)
return NULL;
if (size == 1)
{
*s = '\0';
return NULL;
}
c = getc (stream);
if (c == EOF)
return NULL;
for (;;)
{
/* At this point we have space in sptr for at least two characters */
if (c == '\n') /* Got end of line (UNIX line end) ? */
{
*(sptr++) = '\n';
break;
}
else if (c == '\r') /* Got a carriage return. Check next charcater */
{
c = getc (stream);
if ((c == EOF) || (c == '\n')) /* EOF or DOS line end ? */
{
*(sptr++) = '\n'; /* Return UNIX line end */
break;
}
else /* Single carriage return. Return UNIX line end. */
{
ungetc (c, stream); /* Save the extra character */
*(sptr++) = '\n';
break;
}
}
else /* no line end character */
{
*(sptr++) = (char)c;
size--;
}
if (size == 1)
break; /* Only space for the nul-character ? */
c = getc (stream);
if (c == EOF)
break;
}
*sptr = '\0';
return s;
}
/* Get the BoundingBox of a PostScript file. On success, 0 is returned. */
/* On failure, -1 is returned. */
static gint
get_bbox (const gchar *filename,
gint *x0,
gint *y0,
gint *x1,
gint *y1)
{
char line[1024], *src;
FILE *ifp;
int retval = -1;
ifp = g_fopen (filename, "rb");
if (ifp == NULL)
return -1;
for (;;)
{
if (psfgets (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;
}
static gchar *pnmfile;
/* 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 (const gchar *filename,
const PSLoadVals *loadopt,
gint *llx,
gint *lly,
gint *urx,
gint *ury,
gboolean *is_epsf)
{
const gchar *driver;
GPtrArray *cmdA;
gchar **pcmdA;
FILE *fd_popen = NULL;
FILE *eps_file;
gint width, height;
gint resolution;
gint x0, y0, x1, y1;
gint offx = 0;
gint offy = 0;
gboolean is_pdf;
gboolean maybe_epsf = FALSE;
int code;
void *instance;
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 can't set geometry */
is_pdf = FALSE;
/* Check if it is a EPS-file */
*is_epsf = FALSE;
eps_file = g_fopen (filename, "rb");
if (eps_file != NULL)
{
gchar hdr[512];
fread (hdr, 1, sizeof(hdr), eps_file);
is_pdf = (strncmp (hdr, "%PDF", 4) == 0);
if (!is_pdf) /* Check for EPSF */
{
char *adobe, *epsf;
int ds = 0;
static unsigned char doseps[5] = { 0xc5, 0xd0, 0xd3, 0xc6, 0 };
hdr[sizeof(hdr)-1] = '\0';
adobe = strstr (hdr, "PS-Adobe-");
epsf = strstr (hdr, "EPSF-");
if ((adobe != NULL) && (epsf != NULL))
ds = epsf - adobe;
*is_epsf = ((ds >= 11) && (ds <= 15));
/* Illustrator uses negative values in BoundingBox without marking */
/* files as EPSF. Try to handle that. */
maybe_epsf =
(strstr (hdr, "%%Creator: Adobe Illustrator(R) 8.0") != 0);
/* Check DOS EPS binary file */
if ((!*is_epsf) && (strncmp (hdr, (char *)doseps, 4) == 0))
*is_epsf = 1;
}
fclose (eps_file);
}
if ((!is_pdf) && (loadopt->use_bbox)) /* Try the BoundingBox ? */
{
if (get_bbox (filename, &x0, &y0, &x1, &y1) == 0)
{
if (maybe_epsf && ((x0 < 0) || (y0 < 0)))
*is_epsf = 1;
if (*is_epsf) /* Handle negative BoundingBox for EPSF */
{
offx = -x0; x1 += offx; x0 += offx;
offy = -y0; y1 += offy; y0 += offy;
}
if ((x0 >= 0) && (y0 >= 0) && (x1 > x0) && (y1 > y0))
{
*llx = (int)((x0/72.0) * resolution + 0.0001);
*lly = (int)((y0/72.0) * resolution + 0.0001);
/* Use upper bbox values as image size */
width = (int)((x1/72.0) * resolution + 0.5);
height = (int)((y1/72.0) * resolution + 0.5);
/* Pixel coordinates must be one less */
*urx = width - 1;
*ury = height - 1;
if (*urx < *llx) *urx = *llx;
if (*ury < *lly) *ury = *lly;
}
}
}
switch (loadopt->pnm_type)
{
case 4:
driver = "pbmraw";
break;
case 5:
driver = "pgmraw";
break;
case 7:
driver = "pnmraw";
break;
default:
driver = "ppmraw";
break;
}
/* For instance, the Win32 port of ghostscript doesn't work correctly when
* using standard output as output file.
* Thus, use a real output file.
*/
pnmfile = gimp_temp_name ("pnm");
/* Build command array */
cmdA = g_ptr_array_new ();
g_ptr_array_add (cmdA, g_strdup (g_get_prgname ()));
g_ptr_array_add (cmdA, g_strdup_printf ("-sDEVICE=%s", driver));
g_ptr_array_add (cmdA, g_strdup_printf ("-r%d", resolution));
if (is_pdf)
{
/* Acrobat Reader honors CropBox over MediaBox, so let's match that
* behavior.
*/
g_ptr_array_add (cmdA, g_strdup ("-dUseCropBox"));
}
else
{
/* For PDF, we can't set geometry */
g_ptr_array_add (cmdA, g_strdup_printf ("-g%dx%d", width, height));
}
/* Antialiasing not available for PBM-device */
if ((loadopt->pnm_type != 4) && (loadopt->textalpha != 1))
g_ptr_array_add (cmdA, g_strdup_printf ("-dTextAlphaBits=%d",
loadopt->textalpha));
if ((loadopt->pnm_type != 4) && (loadopt->graphicsalpha != 1))
g_ptr_array_add (cmdA, g_strdup_printf ("-dGraphicsAlphaBits=%d",
loadopt->graphicsalpha));
g_ptr_array_add (cmdA, g_strdup ("-q"));
g_ptr_array_add (cmdA, g_strdup ("-dBATCH"));
g_ptr_array_add (cmdA, g_strdup ("-dNOPAUSE"));
/* If no additional options specified, use at least -dSAFER */
if (g_getenv ("GS_OPTIONS") == NULL)
g_ptr_array_add (cmdA, g_strdup ("-dSAFER"));
/* Output file name */
g_ptr_array_add (cmdA, g_strdup_printf ("-sOutputFile=%s", pnmfile));
/* Offset command for gs to get image part with negative x/y-coord. */
if ((offx != 0) || (offy != 0))
{
g_ptr_array_add (cmdA, g_strdup ("-c"));
g_ptr_array_add (cmdA, g_strdup_printf ("%d", offx));
g_ptr_array_add (cmdA, g_strdup_printf ("%d", offy));
g_ptr_array_add (cmdA, g_strdup ("translate"));
}
/* input file name */
g_ptr_array_add (cmdA, g_strdup ("-f"));
g_ptr_array_add (cmdA, g_strdup (filename));
if (*is_epsf)
{
g_ptr_array_add (cmdA, g_strdup ("-c"));
g_ptr_array_add (cmdA, g_strdup ("showpage"));
}
g_ptr_array_add (cmdA, g_strdup ("-c"));
g_ptr_array_add (cmdA, g_strdup ("quit"));
g_ptr_array_add (cmdA, NULL);
pcmdA = (gchar **) cmdA->pdata;
#ifdef PS_DEBUG
{
gchar **p = pcmdA;
g_print ("Passing args (argc=%d):\n", cmdA->len - 1);
while (*p)
{
g_print ("%s\n", *p);
p++;
}
}
#endif
code = gsapi_new_instance (&instance, NULL);
if (code == 0) {
code = gsapi_init_with_args (instance, cmdA->len - 1, pcmdA);
code = gsapi_exit (instance);
gsapi_delete_instance (instance);
}
/* Don't care about exit status of ghostscript. */
/* Just try to read what it wrote. */
fd_popen = g_fopen (pnmfile, "rb");
g_ptr_array_free (cmdA, FALSE);
g_strfreev (pcmdA);
return fd_popen;
}
/* Close the PNM-File of the PostScript interpreter */
static void
ps_close (FILE *ifp)
{
/* If a real outputfile was used, close the file and remove it. */
fclose (ifp);
g_unlink (pnmfile);
}
/* Read the header of a raw PNM-file and return type (4-6) or -1 on failure */
static gint
read_pnmraw_type (FILE *ifp,
gint *width,
gint *height,
gint *maxval)
{
int frst, scnd, thrd;
gint pnmtype;
gchar 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;
#ifdef G_OS_WIN32
if (thrd == '\r') thrd = getc (ifp);
#endif
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 (const gchar *filename,
guint pagenum,
guint width,
guint height,
GimpImageBaseType type,
gint32 *layer_ID)
{
gint32 image_ID;
GimpImageType gdtype;
gchar *tmp;
switch (type)
{
case GIMP_GRAY:
gdtype = GIMP_GRAY_IMAGE;
break;
case GIMP_INDEXED:
gdtype = GIMP_INDEXED_IMAGE;
break;
case GIMP_RGB:
default:
gdtype = GIMP_RGB_IMAGE;
}
image_ID = gimp_image_new_with_precision (width, height, type,
GIMP_PRECISION_U8_GAMMA);
gimp_image_undo_disable (image_ID);
tmp = g_strdup_printf ("%s-%d", filename, pagenum);
gimp_image_set_filename (image_ID, tmp);
g_free (tmp);
tmp = g_strdup_printf (_("Page %d"), pagenum);
*layer_ID = gimp_layer_new (image_ID, tmp, width, height,
gdtype,
100,
gimp_image_get_default_new_layer_mode (image_ID));
g_free (tmp);
gimp_image_insert_layer (image_ID, *layer_ID, -1, 0);
return image_ID;
}
/* Skip PNM image generated from PostScript file. */
/* Return TRUE on success, FALSE otherwise. */
static gboolean
skip_ps (FILE *ifp)
{
guchar buf[8192];
gsize len;
gint 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 FALSE;
len = bpl * height;
while (len)
{
gsize bytes = fread (buf, 1, MIN (len, sizeof (buf)), ifp);
if (bytes < MIN (len, sizeof (buf)))
return FALSE;
len -= bytes;
}
return TRUE;
}
/* Load PNM image generated from PostScript file */
static gint32
load_ps (const gchar *filename,
guint pagenum,
FILE *ifp,
gint llx,
gint lly,
gint urx,
gint ury)
{
guchar *dest;
guchar *data, *bitline = NULL, *byteline = NULL, *byteptr, *temp;
guchar 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;
GimpImageBaseType imagetype;
gint32 layer_ID, image_ID;
GeglBuffer *buffer = NULL;
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 = GIMP_INDEXED;
nread = (width+7)/8;
bpp = 1;
bitline = g_new (guchar, nread);
byteline = g_new (guchar, nread * 8);
/* 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 = GIMP_GRAY;
nread = width;
bpp = 1;
byteline = g_new (guchar, nread);
}
else if (pnmtype == 6) /* Portable Pixmap */
{
imagetype = GIMP_RGB;
nread = width * 3;
bpp = 3;
byteline = g_new (guchar, nread);
}
else
return -1;
image_ID = create_new_image (filename, pagenum,
image_width, image_height, imagetype,
&layer_ID);
buffer = gimp_drawable_get_buffer (layer_ID);
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 */
{
const guchar BWColorMap[2*3] = { 255, 255, 255, 0, 0, 0 };
gimp_image_set_colormap (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 ((scan_lines == tile_height) || ((i + 1) == image_height))
{
gegl_buffer_set (buffer,
GEGL_RECTANGLE (0, i-scan_lines+1,
image_width, scan_lines),
0,
NULL,
data,
GEGL_AUTO_ROWSTRIDE);
scan_lines = 0;
dest = data;
}
if ((i % 20) == 0)
gimp_progress_update ((gdouble) (i + 1) / (gdouble) image_height);
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 ((scan_lines == tile_height) || ((i + 1) == image_height))
{
gegl_buffer_set (buffer,
GEGL_RECTANGLE (0, i-scan_lines+1,
image_width, scan_lines),
0,
NULL,
data,
GEGL_AUTO_ROWSTRIDE);
scan_lines = 0;
dest = data;
}
if ((i % 20) == 0)
gimp_progress_update ((gdouble) (i + 1) / (gdouble) image_height);
if (err)
break;
}
}
gimp_progress_update (1.0);
g_free (data);
g_free (byteline);
g_free (bitline);
if (err)
g_message ("EOF encountered on reading");
g_object_unref (buffer);
return (err ? -1 : image_ID);
}
/* Write out the PostScript file header */
static gboolean
save_ps_header (GOutputStream *output,
GFile *file,
GError **error)
{
gchar *basename = g_path_get_basename (gimp_file_get_utf8_name (file));
time_t cutime = time (NULL);
if (! print (output, error,
"%%!PS-Adobe-3.0%s\n", psvals.eps ? " EPSF-3.0" : ""))
goto fail;
if (! print (output, error,
"%%%%Creator: GIMP PostScript file plug-in V %4.2f "
"by Peter Kirchgessner\n", VERSIO))
goto fail;
if (! print (output, error,
"%%%%Title: %s\n"
"%%%%CreationDate: %s"
"%%%%DocumentData: Clean7Bit\n",
basename, ctime (&cutime)))
goto fail;
if (psvals.eps || (psvals.level > 1))
if (! print (output, error,"%%%%LanguageLevel: 2\n"))
goto fail;
if (! print (output, error, "%%%%Pages: 1\n"))
goto fail;
g_free (basename);
return TRUE;
fail:
g_free (basename);
return FALSE;
}
/* Write out transformation for image */
static gboolean
save_ps_setup (GOutputStream *output,
gint32 drawable_ID,
gint width,
gint height,
gint bpp,
GError **error)
{
gdouble x_offset, y_offset, x_size, y_size;
gdouble urx, ury;
gdouble width_inch, height_inch;
gdouble f1, f2, dx, dy;
gint xtrans, ytrans;
gint i_urx, i_ury;
gchar tmpbuf1[G_ASCII_DTOSTR_BUF_SIZE];
gchar tmpbuf2[G_ASCII_DTOSTR_BUF_SIZE];
/* 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 * (gdouble) height / (gdouble) width;
else
width_inch = fabs (height_inch) * (gdouble) width / (gdouble) 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;
}
/* Round up upper right corner only for non-integer values */
urx = (x_offset + x_size) * 72.0;
ury = (y_offset + y_size) * 72.0;
i_urx = (gint) urx;
i_ury = (gint) ury;
if (urx != (gdouble) i_urx) i_urx++; /* Check for non-integer value */
if (ury != (gdouble) i_ury) i_ury++;
if (! print (output, error,
"%%%%BoundingBox: %d %d %d %d\n"
"%%%%EndComments\n",
(gint) (x_offset * 72.0), (gint) (y_offset * 72.0), i_urx, i_ury))
return FALSE;
if (psvals.preview && (psvals.preview_size > 0))
{
if (! save_ps_preview (output, drawable_ID, error))
return FALSE;
}
if (! print (output, error,
"%%%%BeginProlog\n"
"%% Use own dictionary to avoid conflicts\n"
"10 dict begin\n"
"%%%%EndProlog\n"
"%%%%Page: 1 1\n"
"%% Translate for offset\n"
"%s %s translate\n",
g_ascii_dtostr (tmpbuf1, sizeof (tmpbuf1), x_offset * 72.0),
g_ascii_dtostr (tmpbuf2, sizeof (tmpbuf2), y_offset * 72.0)))
return FALSE;
/* 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;
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))
{
if (! print (output, error,
"%% Translate to begin of first scanline\n"
"%s %s translate\n",
g_ascii_dtostr (tmpbuf1, sizeof (tmpbuf1), dx),
g_ascii_dtostr (tmpbuf2, sizeof (tmpbuf2), dy)))
return FALSE;
}
if (psvals.rotate)
if (! print (output, error, "%d rotate\n", (gint) psvals.rotate))
return FALSE;
if (! print (output, error,
"%s %s scale\n",
g_ascii_dtostr (tmpbuf1, sizeof (tmpbuf1), 72.0 * width_inch),
g_ascii_dtostr (tmpbuf2, sizeof (tmpbuf2), -72.0 * height_inch)))
return FALSE;
/* Write the PostScript procedures to read the image */
if (psvals.level <= 1)
{
if (! print (output, error,
"%% Variable to keep one line of raster data\n"))
return FALSE;
if (bpp == 1)
{
if (! print (output, error,
"/scanline %d string def\n", (width + 7) / 8))
return FALSE;
}
else
{
if (! print (output, error,
"/scanline %d %d mul string def\n", width, bpp / 8))
return FALSE;
}
}
if (! print (output, error,
"%% Image geometry\n%d %d %d\n"
"%% Transformation matrix\n",
width, height, (bpp == 1) ? 1 : 8))
return FALSE;
xtrans = ytrans = 0;
if (psvals.width < 0.0) { width = -width; xtrans = -width; }
if (psvals.height < 0.0) { height = -height; ytrans = -height; }
if (! print (output, error,
"[ %d 0 0 %d %d %d ]\n", width, height, xtrans, ytrans))
return FALSE;
return TRUE;
}
static gboolean
save_ps_trailer (GOutputStream *output,
GError **error)
{
return print (output, error,
"%%%%Trailer\n"
"end\n%%%%EOF\n");
}
/* Do a Floyd-Steinberg dithering on a grayscale scanline. */
/* linecount must keep the counter for the actual scanline (0, 1, 2, ...). */
/* If linecount is less than zero, all used memory is freed. */
static void
dither_grey (const guchar *grey,
guchar *bw,
gint npix,
gint linecount)
{
static gboolean do_init_arrays = TRUE;
static gint *fs_error = NULL;
static gint limit[1278];
static gint east_error[256];
static gint seast_error[256];
static gint south_error[256];
static gint swest_error[256];
const guchar *greyptr;
guchar *bwptr, mask;
gint *fse;
gint x, greyval, fse_inline;
if (linecount <= 0)
{
g_free (fs_error);
if (linecount < 0)
return;
fs_error = g_new0 (gint, npix + 2);
/* Initialize some arrays that speed up dithering */
if (do_init_arrays)
{
gint i;
do_init_arrays = FALSE;
for (i = 0, x = -511; x <= 766; i++, x++)
limit[i] = (x < 0) ? 0 : ((x > 255) ? 255 : x);
for (greyval = 0; greyval < 256; greyval++)
{
east_error[greyval] = (greyval < 128) ?
((greyval * 79) >> 8) : (((greyval - 255) * 79) >> 8);
seast_error[greyval] = (greyval < 128) ?
((greyval * 34) >> 8) : (((greyval - 255) * 34) >> 8);
south_error[greyval] = (greyval < 128) ?
((greyval * 56) >> 8) : (((greyval - 255) * 56) >> 8);
swest_error[greyval] = (greyval < 128) ?
((greyval * 12) >> 8) : (((greyval - 255) * 12) >> 8);
}
}
}
g_return_if_fail (fs_error != NULL);
memset (bw, 0, (npix + 7) / 8); /* Initialize with white */
greyptr = grey;
bwptr = bw;
mask = 0x80;
fse_inline = fs_error[1];
for (x = 0, fse = fs_error + 1; x < npix; x++, fse++)
{
greyval =
limit[*(greyptr++) + fse_inline + 512]; /* 0 <= greyval <= 255 */
if (greyval < 128)
*bwptr |= mask; /* Set a black pixel */
/* Error distribution */
fse_inline = east_error[greyval] + fse[1];
fse[1] = seast_error[greyval];
fse[0] += south_error[greyval];
fse[-1] += swest_error[greyval];
mask >>= 1; /* Get mask for next b/w-pixel */
if (!mask)
{
mask = 0x80;
bwptr++;
}
}
}
/* Write a device independent screen preview */
static gboolean
save_ps_preview (GOutputStream *output,
gint32 drawable_ID,
GError **error)
{
GimpImageType drawable_type;
GeglBuffer *buffer = NULL;
const Babl *format;
gint bpp;
guchar *bwptr, *greyptr;
gint width, height, x, y, nbsl, out_count;
gint nchar_pl = 72, src_y;
gdouble f1, f2;
guchar *grey, *bw, *src_row, *src_ptr;
guchar *cmap;
gint ncols, cind;
if (psvals.preview_size <= 0)
return TRUE;
buffer = gimp_drawable_get_buffer (drawable_ID);
cmap = NULL;
drawable_type = gimp_drawable_type (drawable_ID);
switch (drawable_type)
{
case GIMP_GRAY_IMAGE:
format = babl_format ("Y' u8");
break;
case GIMP_INDEXED_IMAGE:
cmap = gimp_image_get_colormap (gimp_item_get_image (drawable_ID),
&ncols);
format = gimp_drawable_get_format (drawable_ID);
break;
case GIMP_RGB_IMAGE:
default:
format = babl_format ("R'G'B' u8");
break;
}
bpp = babl_format_get_bytes_per_pixel (format);
width = gegl_buffer_get_width (buffer);
height = gegl_buffer_get_height (buffer);
/* Calculate size of preview */
if ((width > psvals.preview_size) ||
(height > psvals.preview_size))
{
f1 = (gdouble) psvals.preview_size / (gdouble) width;
f2 = (gdouble) psvals.preview_size / (gdouble) height;
if (f1 < f2)
{
width = psvals.preview_size;
height *= f1;
if (height <= 0)
height = 1;
}
else
{
height = psvals.preview_size;
width *= f1;
if (width <= 0)
width = 1;
}
}
nbsl = (width + 7) / 8; /* Number of bytes per scanline in bitmap */
grey = g_new (guchar, width);
bw = g_new (guchar, nbsl);
src_row = g_new (guchar, gegl_buffer_get_width (buffer) * bpp);
if (! print (output, error,
"%%%%BeginPreview: %d %d 1 %d\n",
width, height,
((nbsl * 2 + nchar_pl - 1) / nchar_pl) * height))
goto fail;
for (y = 0; y < height; y++)
{
/* Get a scanline from the input image and scale it to the desired
width */
src_y = (y * gegl_buffer_get_height (buffer)) / height;
gegl_buffer_get (buffer,
GEGL_RECTANGLE (0, src_y,
gegl_buffer_get_width (buffer), 1),
1.0, format, src_row,
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
greyptr = grey;
if (bpp == 3) /* RGB-image */
{
for (x = 0; x < width; x++)
{ /* Convert to grey */
src_ptr = src_row + ((x * gegl_buffer_get_width (buffer)) / width) * 3;
*(greyptr++) = (3*src_ptr[0] + 6*src_ptr[1] + src_ptr[2]) / 10;
}
}
else if (cmap) /* Indexed image */
{
for (x = 0; x < width; x++)
{
src_ptr = src_row + ((x * gegl_buffer_get_width (buffer)) / width);
cind = *src_ptr; /* Get color index and convert to grey */
src_ptr = (cind >= ncols) ? cmap : (cmap + 3*cind);
*(greyptr++) = (3*src_ptr[0] + 6*src_ptr[1] + src_ptr[2]) / 10;
}
}
else /* Grey image */
{
for (x = 0; x < width; x++)
*(greyptr++) = *(src_row + ((x * gegl_buffer_get_width (buffer)) / width));
}
/* Now we have a grayscale line for the desired width. */
/* Dither it to b/w */
dither_grey (grey, bw, width, y);
/* Write out the b/w line */
out_count = 0;
bwptr = bw;
for (x = 0; x < nbsl; x++)
{
if (out_count == 0)
if (! print (output, error, "%% "))
goto fail;
if (! print (output, error, "%02x", *(bwptr++)))
goto fail;
out_count += 2;
if (out_count >= nchar_pl)
{
if (! print (output, error, "\n"))
goto fail;
out_count = 0;
}
}
if (! print (output, error, "\n"))
goto fail;
if ((y % 20) == 0)
gimp_progress_update ((gdouble) y / (gdouble) height);
}
gimp_progress_update (1.0);
if (! print (output, error, "%%%%EndPreview\n"))
goto fail;
dither_grey (grey, bw, width, -1);
g_free (src_row);
g_free (bw);
g_free (grey);
g_object_unref (buffer);
return TRUE;
fail:
g_free (src_row);
g_free (bw);
g_free (grey);
g_object_unref (buffer);
return FALSE;
}
static gboolean
save_gray (GOutputStream *output,
gint32 image_ID,
gint32 drawable_ID,
GError **error)
{
GeglBuffer *buffer = NULL;
const Babl *format;
gint bpp;
gint height, width, i, j;
gint tile_height;
guchar *data;
guchar *src;
guchar *packb = NULL;
gboolean level2 = (psvals.level > 1);
buffer = gimp_drawable_get_buffer (drawable_ID);
format = babl_format ("Y' u8");
bpp = babl_format_get_bytes_per_pixel (format);
width = gegl_buffer_get_width (buffer);
height = gegl_buffer_get_height (buffer);
tile_height = gimp_tile_height ();
/* allocate a buffer for retrieving information from the pixel region */
src = data = (guchar *) g_malloc (tile_height * width * bpp);
/* Set up transformation in PostScript */
if (! save_ps_setup (output, drawable_ID, width, height, 1 * 8, error))
goto fail;
/* Write read image procedure */
if (! level2)
{
if (! print (output, error,
"{ currentfile scanline readhexstring pop }\n"))
goto fail;
}
else
{
if (! print (output, error,
"currentfile /ASCII85Decode filter /RunLengthDecode filter\n"))
goto fail;
ascii85_init ();
/* Allocate buffer for packbits data. Worst case: Less than 1% increase */
packb = (guchar *) g_malloc ((width * 105) / 100 + 2);
}
if (! ps_begin_data (output, error))
goto fail;
if (! print (output, error, "image\n"))
goto fail;
#define GET_GRAY_TILE(begin) \
{ gint scan_lines; \
scan_lines = (i+tile_height-1 < height) ? tile_height : (height-i); \
gegl_buffer_get (buffer, GEGL_RECTANGLE (0, i, width, scan_lines), \
1.0, format, begin, \
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE); \
src = begin; }
for (i = 0; i < height; i++)
{
if ((i % tile_height) == 0)
GET_GRAY_TILE (data); /* Get more data */
if (! level2)
{
for (j = 0; j < width; j++)
{
if (! print (output, error, "%c", hex[(*src) >> 4]))
goto fail;
if (! print (output, error, "%c", hex[(*(src++)) & 0x0f]))
goto fail;
if (((j + 1) % 39) == 0)
if (! print (output, error, "\n"))
goto fail;
}
if (! print (output, error, "\n"))
goto fail;
}
else
{
gint nout;
compress_packbits (width, src, &nout, packb);
if (! ascii85_nout (output, nout, packb, error))
goto fail;
src += width;
}
if ((i % 20) == 0)
gimp_progress_update ((gdouble) i / (gdouble) height);
}
gimp_progress_update (1.0);
if (level2)
{
/* Write EOD of RunLengthDecode filter */
if (! ascii85_out (output, 128, error))
goto fail;
if (! ascii85_done (output, error))
goto fail;
}
if (! ps_end_data (output, error))
return FALSE;
if (! print (output, error, "showpage\n"))
goto fail;
g_free (data);
g_free (packb);
g_object_unref (buffer);
return TRUE;
fail:
g_free (data);
g_free (packb);
g_object_unref (buffer);
return FALSE;
#undef GET_GRAY_TILE
}
static gboolean
save_bw (GOutputStream *output,
gint32 image_ID,
gint32 drawable_ID,
GError **error)
{
GeglBuffer *buffer = NULL;
const Babl *format;
gint bpp;
gint height, width, i, j;
gint ncols, nbsl, nwrite;
gint tile_height;
guchar *cmap, *ct;
guchar *data, *src;
guchar *packb = NULL;
guchar *scanline, *dst, mask;
guchar *hex_scanline;
gboolean level2 = (psvals.level > 1);
cmap = gimp_image_get_colormap (image_ID, &ncols);
buffer = gimp_drawable_get_buffer (drawable_ID);
format = gimp_drawable_get_format (drawable_ID);
bpp = babl_format_get_bytes_per_pixel (format);
width = gegl_buffer_get_width (buffer);
height = gegl_buffer_get_height (buffer);
tile_height = gimp_tile_height ();
/* allocate a buffer for retrieving information from the pixel region */
src = data = g_new (guchar, tile_height * width * bpp);
nbsl = (width + 7) / 8;
scanline = g_new (guchar, nbsl + 1);
hex_scanline = g_new (guchar, (nbsl + 1) * 2);
/* Set up transformation in PostScript */
if (! save_ps_setup (output, drawable_ID, width, height, 1, error))
goto fail;
/* Write read image procedure */
if (! level2)
{
if (! print (output, error,
"{ currentfile scanline readhexstring pop }\n"))
goto fail;
}
else
{
if (! print (output, error,
"currentfile /ASCII85Decode filter /RunLengthDecode filter\n"))
goto fail;
ascii85_init ();
/* Allocate buffer for packbits data. Worst case: Less than 1% increase */
packb = g_new (guchar, ((nbsl+1) * 105) / 100 + 2);
}
if (! ps_begin_data (output, error))
goto fail;
if (! print (output, error, "image\n"))
goto fail;
#define GET_BW_TILE(begin) \
{ gint scan_lines; \
scan_lines = (i+tile_height-1 < height) ? tile_height : (height-i); \
gegl_buffer_get (buffer, GEGL_RECTANGLE (0, i, width, scan_lines), \
1.0, format, begin, \
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE); \
src = begin; }
for (i = 0; i < height; i++)
{
if ((i % tile_height) == 0)
GET_BW_TILE (data); /* Get more data */
dst = scanline;
memset (dst, 0, nbsl);
mask = 0x80;
/* Build a bitmap for a scanline */
for (j = 0; j < width; j++)
{
ct = cmap + *(src++)*3;
if (ct[0] || ct[1] || ct[2])
*dst |= mask;
if (mask == 0x01)
{
mask = 0x80; dst++;
}
else
{
mask >>= 1;
}
}
if (! level2)
{
/* Convert to hexstring */
for (j = 0; j < nbsl; j++)
{
hex_scanline[j * 2] = (guchar) hex[scanline[j] >> 4];
hex_scanline[j * 2 + 1] = (guchar) hex[scanline[j] & 0x0f];
}
/* Write out hexstring */
j = nbsl * 2;
dst = hex_scanline;
while (j > 0)
{
nwrite = (j > 78) ? 78 : j;
if (! g_output_stream_write_all (output,
dst, nwrite, NULL,
NULL, error))
goto fail;
if (! print (output, error, "\n"))
goto fail;
j -= nwrite;
dst += nwrite;
}
}
else
{
gint nout;
compress_packbits (nbsl, scanline, &nout, packb);
if (! ascii85_nout (output, nout, packb, error))
goto fail;
}
if ((i % 20) == 0)
gimp_progress_update ((gdouble) i / (gdouble) height);
}
gimp_progress_update (1.0);
if (level2)
{
/* Write EOD of RunLengthDecode filter */
if (! ascii85_out (output, 128, error))
goto fail;
if (! ascii85_done (output, error))
goto fail;
}
if (! ps_end_data (output, error))
goto fail;
if (! print (output, error, "showpage\n"))
goto fail;
g_free (hex_scanline);
g_free (scanline);
g_free (data);
g_free (packb);
g_object_unref (buffer);
return TRUE;
fail:
g_free (hex_scanline);
g_free (scanline);
g_free (data);
g_free (packb);
g_object_unref (buffer);
return FALSE;
#undef GET_BW_TILE
}
static gboolean
save_index (GOutputStream *output,
gint32 image_ID,
gint32 drawable_ID,
GError **error)
{
GeglBuffer *buffer = NULL;
const Babl *format;
gint bpp;
gint height, width, i, j;
gint ncols, bw;
gint tile_height;
guchar *cmap, *cmap_start;
guchar *data, *src;
guchar *packb = NULL;
guchar *plane = NULL;
gchar coltab[256 * 6], *ct;
gboolean level2 = (psvals.level > 1);
cmap = cmap_start = gimp_image_get_colormap (image_ID, &ncols);
ct = coltab;
bw = 1;
for (j = 0; j < 256; j++)
{
if (j >= ncols)
{
memset (ct, 0, 6);
ct += 6;
}
else
{
bw &= ((cmap[0] == 0) && (cmap[1] == 0) && (cmap[2] == 0)) ||
((cmap[0] == 255) && (cmap[1] == 255) && (cmap[2] == 255));
*(ct++) = (guchar) hex[(*cmap) >> 4];
*(ct++) = (guchar) hex[(*(cmap++)) & 0x0f];
*(ct++) = (guchar) hex[(*cmap) >> 4];
*(ct++) = (guchar) hex[(*(cmap++)) & 0x0f];
*(ct++) = (guchar) hex[(*cmap) >> 4];
*(ct++) = (guchar) hex[(*(cmap++)) & 0x0f];
}
}
if (bw)
return save_bw (output, image_ID, drawable_ID, error);
buffer = gimp_drawable_get_buffer (drawable_ID);
format = gimp_drawable_get_format (drawable_ID);
bpp = babl_format_get_bytes_per_pixel (format);
width = gegl_buffer_get_width (buffer);
height = gegl_buffer_get_height (buffer);
tile_height = gimp_tile_height ();
/* allocate a buffer for retrieving information from the pixel region */
src = data = (guchar *) g_malloc (tile_height * width * bpp);
/* Set up transformation in PostScript */
if (! save_ps_setup (output, drawable_ID, width, height, 3 * 8, error))
goto fail;
/* Write read image procedure */
if (! level2)
{
if (! print (output, error,
"{ currentfile scanline readhexstring pop } false 3\n"))
goto fail;
}
else
{
if (! print (output, error,
"%% Strings to hold RGB-samples per scanline\n"
"/rstr %d string def\n"
"/gstr %d string def\n"
"/bstr %d string def\n",
width, width, width))
goto fail;
if (! print (output, error,
"{currentfile /ASCII85Decode filter /RunLengthDecode filter\
rstr readstring pop}\n"
"{currentfile /ASCII85Decode filter /RunLengthDecode filter\
gstr readstring pop}\n"
"{currentfile /ASCII85Decode filter /RunLengthDecode filter\
bstr readstring pop}\n"
"true 3\n"))
goto fail;
/* Allocate buffer for packbits data. Worst case: Less than 1% increase */
packb = (guchar *) g_malloc ((width * 105) / 100 + 2);
plane = (guchar *) g_malloc (width);
}
if (! ps_begin_data (output, error))
goto fail;
if (! print (output, error, "colorimage\n"))
goto fail;
#define GET_INDEX_TILE(begin) \
{ gint scan_lines; \
scan_lines = (i+tile_height-1 < height) ? tile_height : (height-i); \
gegl_buffer_get (buffer, GEGL_RECTANGLE (0, i, width, scan_lines), \
1.0, format, begin, \
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE); \
src = begin; }
for (i = 0; i < height; i++)
{
if ((i % tile_height) == 0)
GET_INDEX_TILE (data); /* Get more data */
if (! level2)
{
for (j = 0; j < width; j++)
{
if (! g_output_stream_write_all (output,
coltab + (*(src++)) * 6, 6, NULL,
NULL, error))
goto fail;
if (((j + 1) % 13) == 0)
if (! print (output, error, "\n"))
goto fail;
}
if (! print (output, error, "\n"))
goto fail;
}
else
{
gint rgb;
for (rgb = 0; rgb < 3; rgb++)
{
guchar *src_ptr = src;
guchar *plane_ptr = plane;
gint nout;
for (j = 0; j < width; j++)
*(plane_ptr++) = cmap_start[3 * *(src_ptr++) + rgb];
compress_packbits (width, plane, &nout, packb);
ascii85_init ();
if (! ascii85_nout (output, nout, packb, error))
goto fail;
/* Write EOD of RunLengthDecode filter */
if (! ascii85_out (output, 128, error))
goto fail;
if (! ascii85_done (output, error))
goto fail;
}
src += width;
}
if ((i % 20) == 0)
gimp_progress_update ((gdouble) i / (gdouble) height);
}
gimp_progress_update (1.0);
if (! ps_end_data (output, error))
goto fail;
if (! print (output, error, "showpage\n"))
goto fail;
g_free (data);
g_free (packb);
g_free (plane);
g_object_unref (buffer);
return TRUE;
fail:
g_free (data);
g_free (packb);
g_free (plane);
g_object_unref (buffer);
return FALSE;
#undef GET_INDEX_TILE
}
static gboolean
save_rgb (GOutputStream *output,
gint32 image_ID,
gint32 drawable_ID,
GError **error)
{
GeglBuffer *buffer = NULL;
const Babl *format;
gint bpp;
gint height, width, tile_height;
gint i, j;
guchar *data, *src;
guchar *packb = NULL;
guchar *plane = NULL;
gboolean level2 = (psvals.level > 1);
buffer = gimp_drawable_get_buffer (drawable_ID);
format = babl_format ("R'G'B' u8");
bpp = babl_format_get_bytes_per_pixel (format);
width = gegl_buffer_get_width (buffer);
height = gegl_buffer_get_height (buffer);
tile_height = gimp_tile_height ();
/* allocate a buffer for retrieving information from the pixel region */
src = data = g_new (guchar, tile_height * width * bpp);
/* Set up transformation in PostScript */
if (! save_ps_setup (output, drawable_ID, width, height, 3 * 8, error))
goto fail;
/* Write read image procedure */
if (! level2)
{
if (! print (output, error,
"{ currentfile scanline readhexstring pop } false 3\n"))
goto fail;
}
else
{
if (! print (output, error,
"%% Strings to hold RGB-samples per scanline\n"
"/rstr %d string def\n"
"/gstr %d string def\n"
"/bstr %d string def\n",
width, width, width))
goto fail;
if (! print (output, error,
"{currentfile /ASCII85Decode filter /RunLengthDecode filter\
rstr readstring pop}\n"
"{currentfile /ASCII85Decode filter /RunLengthDecode filter\
gstr readstring pop}\n"
"{currentfile /ASCII85Decode filter /RunLengthDecode filter\
bstr readstring pop}\n"
"true 3\n"))
goto fail;
/* Allocate buffer for packbits data. Worst case: Less than 1% increase */
packb = g_new (guchar, (width * 105) / 100 + 2);
plane = g_new (guchar, width);
}
if (! ps_begin_data (output, error))
goto fail;
if (! print (output, error, "colorimage\n"))
goto fail;
#define GET_RGB_TILE(begin) \
{ gint scan_lines; \
scan_lines = (i+tile_height-1 < height) ? tile_height : (height-i); \
gegl_buffer_get (buffer, GEGL_RECTANGLE (0, i, width, scan_lines), \
1.0, format, begin, \
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE); \
src = begin; }
for (i = 0; i < height; i++)
{
if ((i % tile_height) == 0)
GET_RGB_TILE (data); /* Get more data */
if (! level2)
{
for (j = 0; j < width; j++)
{
if (! print (output, error, "%c",
hex[(*src) >> 4])) /* Red */
goto fail;
if (! print (output, error, "%c",
hex[(*(src++)) & 0x0f]))
goto fail;
if (! print (output, error, "%c",
hex[(*src) >> 4])) /* Green */
goto fail;
if (! print (output, error, "%c",
hex[(*(src++)) & 0x0f]))
goto fail;
if (! print (output, error, "%c",
hex[(*src) >> 4])) /* Blue */
goto fail;
if (! print (output, error, "%c",
hex[(*(src++)) & 0x0f]))
goto fail;
if (((j+1) % 13) == 0)
if (! print (output, error, "\n"))
goto fail;
}
if (! print (output, error, "\n"))
goto fail;
}
else
{
gint rgb;
for (rgb = 0; rgb < 3; rgb++)
{
guchar *src_ptr = src + rgb;
guchar *plane_ptr = plane;
gint nout;
for (j = 0; j < width; j++)
{
*(plane_ptr++) = *src_ptr;
src_ptr += 3;
}
compress_packbits (width, plane, &nout, packb);
ascii85_init ();
if (! ascii85_nout (output, nout, packb, error))
goto fail;
/* Write EOD of RunLengthDecode filter */
if (! ascii85_out (output, 128, error))
goto fail;
if (! ascii85_done (output, error))
goto fail;
}
src += 3 * width;
}
if ((i % 20) == 0)
gimp_progress_update ((gdouble) i / (gdouble) height);
}
gimp_progress_update (1.0);
if (! ps_end_data (output, error))
goto fail;
if (! print (output, error, "showpage\n"))
goto fail;
g_free (data);
g_free (packb);
g_free (plane);
g_object_unref (buffer);
return TRUE;
fail:
g_free (data);
g_free (packb);
g_free (plane);
g_object_unref (buffer);
return FALSE;
#undef GET_RGB_TILE
}
static gboolean
print (GOutputStream *output,
GError **error,
const gchar *format,
...)
{
va_list args;
gboolean success;
va_start (args, format);
success = g_output_stream_vprintf (output, NULL, NULL,
error, format, args);
va_end (args);
return success;
}
/* Load interface functions */
static gint32
count_ps_pages (const gchar *filename)
{
FILE *psfile;
gchar *extension;
gchar buf[1024];
gint32 num_pages = 0;
gint32 showpage_count = 0;
extension = strrchr (filename, '.');
if (extension)
{
extension = g_ascii_strdown (extension + 1, -1);
if (strcmp (extension, "eps") == 0)
{
g_free (extension);
return 1;
}
g_free (extension);
}
psfile = g_fopen (filename, "r");
if (psfile == NULL)
{
g_message (_("Could not open '%s' for reading: %s"),
gimp_filename_to_utf8 (filename), g_strerror (errno));
return 0;
}
while (num_pages == 0 && !feof (psfile))
{
fgets (buf, sizeof (buf), psfile);
if (strncmp (buf + 2, "Pages:", 6) == 0)
sscanf (buf + strlen ("%%Pages:"), "%d", &num_pages);
else if (strncmp (buf, "showpage", 8) == 0)
showpage_count++;
}
if (feof (psfile) && num_pages < 1 && showpage_count > 0)
num_pages = showpage_count;
fclose (psfile);
return num_pages;
}
static gboolean
load_dialog (const gchar *filename)
{
GtkWidget *dialog;
GtkWidget *main_vbox;
GtkWidget *hbox;
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *table;
GtkWidget *spinbutton;
GtkAdjustment *adj;
GtkWidget *entry = NULL;
GtkWidget *target = NULL;
GtkWidget *toggle;
GtkWidget *selector = NULL;
gint32 page_count;
gchar *range = NULL;
gboolean run;
page_count = count_ps_pages (filename);
gimp_ui_init (PLUG_IN_BINARY, FALSE);
dialog = gimp_dialog_new (_("Import from PostScript"), PLUG_IN_ROLE,
NULL, 0,
gimp_standard_help_func, LOAD_PS_PROC,
_("_Cancel"), GTK_RESPONSE_CANCEL,
_("_Import"), GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gimp_window_set_transient (GTK_WINDOW (dialog));
main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
main_vbox, TRUE, TRUE, 0);
gtk_widget_show (main_vbox);
if (page_count > 1)
{
selector = gimp_page_selector_new ();
gtk_box_pack_start (GTK_BOX (main_vbox), selector, TRUE, TRUE, 0);
gimp_page_selector_set_n_pages (GIMP_PAGE_SELECTOR (selector),
page_count);
gimp_page_selector_set_target (GIMP_PAGE_SELECTOR (selector),
ps_pagemode);
gtk_widget_show (selector);
g_signal_connect_swapped (selector, "activate",
G_CALLBACK (gtk_window_activate_default),
dialog);
}
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
gtk_box_set_homogeneous (GTK_BOX (hbox), TRUE);
gtk_box_pack_start (GTK_BOX (main_vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
/* Rendering */
frame = gimp_frame_new (_("Rendering"));
gtk_box_pack_start (GTK_BOX (hbox), frame, FALSE, TRUE, 0);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_container_add (GTK_CONTAINER (frame), vbox);
/* Resolution/Width/Height/Pages labels */
table = gtk_table_new (4, 2, FALSE);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
adj = (GtkAdjustment *) gtk_adjustment_new (plvals.resolution,
MIN_RESOLUTION, MAX_RESOLUTION,
1, 10, 0);
spinbutton = gtk_spin_button_new (adj, 1.0, 0);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("Resolution:"), 0.0, 0.5,
spinbutton, 1, FALSE);
g_signal_connect (adj, "value-changed",
G_CALLBACK (resolution_change_callback),
&plvals.resolution);
g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_int_adjustment_update),
&plvals.resolution);
adj = (GtkAdjustment *) gtk_adjustment_new (plvals.width,
1, GIMP_MAX_IMAGE_SIZE,
1, 10, 0);
ps_width_spinbutton = gtk_spin_button_new (adj, 1.0, 0);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
_("_Width:"), 0.0, 0.5,
ps_width_spinbutton, 1, FALSE);
g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_int_adjustment_update),
&plvals.width);
adj = (GtkAdjustment *) gtk_adjustment_new (plvals.height,
1, GIMP_MAX_IMAGE_SIZE,
1, 10, 0);
ps_height_spinbutton = gtk_spin_button_new (adj, 1.0, 0);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
_("_Height:"), 0.0, 0.5,
ps_height_spinbutton, 1, FALSE);
g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_int_adjustment_update),
&plvals.height);
if (page_count == 0)
{
entry = gtk_entry_new ();
gtk_widget_set_size_request (entry, 80, -1);
gtk_entry_set_text (GTK_ENTRY (entry), plvals.pages);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 3,
_("Pages:"), 0.0, 0.5,
entry, 1, FALSE);
g_signal_connect (entry, "changed",
G_CALLBACK (load_pages_entry_callback),
NULL);
gimp_help_set_help_data (GTK_WIDGET (entry),
_("Pages to load (e.g.: 1-4 or 1,3,5-7)"), NULL);
target = gtk_combo_box_text_new ();
gtk_combo_box_text_insert_text (GTK_COMBO_BOX_TEXT (target),
GIMP_PAGE_SELECTOR_TARGET_LAYERS,
_("Layers"));
gtk_combo_box_text_insert_text (GTK_COMBO_BOX_TEXT (target),
GIMP_PAGE_SELECTOR_TARGET_IMAGES,
_("Images"));
gtk_combo_box_set_active (GTK_COMBO_BOX (target), (int) ps_pagemode);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 4,
_("Open as"), 0.0, 0.5,
target, 1, FALSE);
}
toggle = gtk_check_button_new_with_label (_("Try Bounding Box"));
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), plvals.use_bbox);
gtk_widget_show (toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&plvals.use_bbox);
gtk_widget_show (vbox);
gtk_widget_show (frame);
/* Coloring */
frame = gimp_int_radio_group_new (TRUE, _("Coloring"),
G_CALLBACK (gimp_radio_button_update),
&plvals.pnm_type, plvals.pnm_type,
_("B/W"), 4, NULL,
_("Gray"), 5, NULL,
_("Color"), 6, NULL,
_("Automatic"), 7, NULL,
NULL);
gtk_box_pack_start (GTK_BOX (hbox), frame, FALSE, TRUE, 0);
gtk_widget_show (frame);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
gtk_box_set_homogeneous (GTK_BOX (hbox), TRUE);
gtk_box_pack_start (GTK_BOX (main_vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
frame = gimp_int_radio_group_new (TRUE, _("Text antialiasing"),
G_CALLBACK (gimp_radio_button_update),
&plvals.textalpha, plvals.textalpha,
C_("antialiasing", "None"), 1, NULL,
_("Weak"), 2, NULL,
_("Strong"), 4, NULL,
NULL);
gtk_box_pack_start (GTK_BOX (hbox), frame, FALSE, TRUE, 0);
gtk_widget_show (frame);
frame = gimp_int_radio_group_new (TRUE, _("Graphic antialiasing"),
G_CALLBACK (gimp_radio_button_update),
&plvals.graphicsalpha, plvals.graphicsalpha,
C_("antialiasing", "None"), 1, NULL,
_("Weak"), 2, NULL,
_("Strong"), 4, NULL,
NULL);
gtk_box_pack_start (GTK_BOX (hbox), frame, FALSE, TRUE, 0);
gtk_widget_show (frame);
gtk_widget_show (dialog);
run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
if (selector)
{
range = gimp_page_selector_get_selected_range (GIMP_PAGE_SELECTOR (selector));
if (strlen (range) < 1)
{
gimp_page_selector_select_all (GIMP_PAGE_SELECTOR (selector));
range = gimp_page_selector_get_selected_range (GIMP_PAGE_SELECTOR (selector));
}
strncpy (plvals.pages, range, sizeof (plvals.pages));
plvals.pages[strlen (range)] = '\0';
ps_pagemode = gimp_page_selector_get_target (GIMP_PAGE_SELECTOR (selector));
}
else if (page_count == 0)
{
ps_pagemode = gtk_combo_box_get_active (GTK_COMBO_BOX (target));
}
else
{
strncpy (plvals.pages, "1", 1);
plvals.pages[1] = '\0';
ps_pagemode = GIMP_PAGE_SELECTOR_TARGET_IMAGES;
}
gtk_widget_destroy (dialog);
return run;
}
static void
load_pages_entry_callback (GtkWidget *widget,
gpointer data)
{
gsize nelem = sizeof (plvals.pages);
strncpy (plvals.pages, gtk_entry_get_text (GTK_ENTRY (widget)), nelem);
plvals.pages[nelem-1] = '\0';
}
/* Save interface functions */
static gboolean
save_dialog (void)
{
SaveDialogVals *vals;
GtkWidget *dialog;
GtkWidget *toggle;
GtkWidget *frame, *uframe;
GtkWidget *hbox, *vbox;
GtkWidget *main_vbox[2];
GtkWidget *table;
GtkWidget *spinbutton;
GtkAdjustment *adj;
gint j;
gboolean run;
vals = g_new (SaveDialogVals, 1);
vals->level = (psvals.level > 1);
dialog = gimp_export_dialog_new (_("PostScript"), PLUG_IN_BINARY, SAVE_PS_PROC);
/* Main hbox */
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 12);
gtk_box_pack_start (GTK_BOX (gimp_export_dialog_get_content_area (dialog)),
hbox, FALSE, FALSE, 0);
main_vbox[0] = main_vbox[1] = NULL;
for (j = 0; j < G_N_ELEMENTS (main_vbox); j++)
{
main_vbox[j] = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_box_pack_start (GTK_BOX (hbox), main_vbox[j], FALSE, TRUE, 0);
gtk_widget_show (main_vbox[j]);
}
/* Image Size */
frame = gimp_frame_new (_("Image Size"));
gtk_box_pack_start (GTK_BOX (main_vbox[0]), frame, FALSE, TRUE, 0);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
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), 6);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
vals->adjustment[0] = (GtkAdjustment *)
gtk_adjustment_new (psvals.width,
1e-5, GIMP_MAX_IMAGE_SIZE, 1, 10, 0);
spinbutton = gtk_spin_button_new (vals->adjustment[0], 1.0, 2);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("_Width:"), 0.0, 0.5,
spinbutton, 1, FALSE);
g_signal_connect (vals->adjustment[0], "value-changed",
G_CALLBACK (gimp_double_adjustment_update),
&psvals.width);
vals->adjustment[1] = (GtkAdjustment *)
gtk_adjustment_new (psvals.height,
1e-5, GIMP_MAX_IMAGE_SIZE, 1, 10, 0);
spinbutton = gtk_spin_button_new (vals->adjustment[1], 1.0, 2);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
_("_Height:"), 0.0, 0.5,
spinbutton, 1, FALSE);
g_signal_connect (vals->adjustment[1], "value-changed",
G_CALLBACK (gimp_double_adjustment_update),
&psvals.height);
vals->adjustment[2] = (GtkAdjustment *)
gtk_adjustment_new (psvals.x_offset,
0.0, GIMP_MAX_IMAGE_SIZE, 1, 10, 0);
spinbutton = gtk_spin_button_new (vals->adjustment[2], 1.0, 2);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
_("_X offset:"), 0.0, 0.5,
spinbutton, 1, FALSE);
g_signal_connect (vals->adjustment[2], "value-changed",
G_CALLBACK (gimp_double_adjustment_update),
&psvals.x_offset);
vals->adjustment[3] = (GtkAdjustment *)
gtk_adjustment_new (psvals.y_offset,
0.0, GIMP_MAX_IMAGE_SIZE, 1, 10, 0);
spinbutton = gtk_spin_button_new (vals->adjustment[3], 1.0, 2);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 3,
_("_Y offset:"), 0.0, 0.5,
spinbutton, 1, FALSE);
g_signal_connect (vals->adjustment[3], "value-changed",
G_CALLBACK (gimp_double_adjustment_update),
&psvals.y_offset);
toggle = gtk_check_button_new_with_mnemonic (_("_Keep aspect ratio"));
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), psvals.keep_ratio);
gtk_widget_show (toggle);
gimp_help_set_help_data (toggle,
_("When toggled, the resulting image will be "
"scaled to fit into the given size without "
"changing the aspect ratio."),
"#keep_aspect_ratio"),
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&psvals.keep_ratio);
/* Unit */
uframe = gimp_int_radio_group_new (TRUE, _("Unit"),
G_CALLBACK (save_unit_toggle_update),
vals, psvals.unit_mm,
_("_Inch"), FALSE, NULL,
_("_Millimeter"), TRUE, NULL,
NULL);
gtk_box_pack_start (GTK_BOX (main_vbox[0]), uframe, TRUE, TRUE, 0);
gtk_widget_show (uframe);
gtk_widget_show (vbox);
gtk_widget_show (frame);
/* Rotation */
frame = gimp_int_radio_group_new (TRUE, _("Rotation"),
G_CALLBACK (gimp_radio_button_update),
&psvals.rotate, psvals.rotate,
"_0", 0, NULL,
"_90", 90, NULL,
"_180", 180, NULL,
"_270", 270, NULL,
NULL);
gtk_box_pack_start (GTK_BOX (main_vbox[1]), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
/* Format */
frame = gimp_frame_new (_("Output"));
gtk_box_pack_start (GTK_BOX (main_vbox[1]), frame, TRUE, TRUE, 0);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_container_add (GTK_CONTAINER (frame), vbox);
toggle = gtk_check_button_new_with_mnemonic (_("_PostScript level 2"));
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), vals->level);
gtk_widget_show (toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&vals->level);
toggle = gtk_check_button_new_with_mnemonic (_("_Encapsulated PostScript"));
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), psvals.eps);
gtk_widget_show (toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&psvals.eps);
toggle = gtk_check_button_new_with_mnemonic (_("P_review"));
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), psvals.preview);
gtk_widget_show (toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&psvals.preview);
/* Preview size label/entry */
table = gtk_table_new (1, 2, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
g_object_bind_property (toggle, "active",
table, "sensitive",
G_BINDING_SYNC_CREATE);
adj = (GtkAdjustment *) gtk_adjustment_new (psvals.preview_size,
0, 1024, 1, 10, 0);
spinbutton = gtk_spin_button_new (adj, 1.0, 0);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("Preview _size:"), 1.0, 0.5,
spinbutton, 1, FALSE);
gtk_widget_show (spinbutton);
g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_int_adjustment_update),
&psvals.preview_size);
gtk_widget_show (vbox);
gtk_widget_show (frame);
gtk_widget_show (hbox);
gtk_widget_show (dialog);
run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
gtk_widget_destroy (dialog);
psvals.level = (vals->level) ? 2 : 1;
g_free (vals);
return run;
}
static void
save_unit_toggle_update (GtkWidget *widget,
gpointer data)
{
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
{
SaveDialogVals *vals = (SaveDialogVals *) data;
gdouble factor;
gdouble value;
gint unit_mm;
gint i;
unit_mm = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-item-data"));
psvals.unit_mm = unit_mm;
if (unit_mm)
factor = 25.4;
else
factor = 1.0 / 25.4;
for (i = 0; i < 4; i++)
{
value = gtk_adjustment_get_value (vals->adjustment[i]) * factor;
gtk_adjustment_set_value (vals->adjustment[i], value);
}
}
}
static gboolean
resolution_change_callback (GtkAdjustment *adjustment,
gpointer data)
{
guint *old_resolution = (guint *) data;
gdouble ratio;
if (*old_resolution)
ratio = (gdouble) gtk_adjustment_get_value (adjustment) / *old_resolution;
else
ratio = 1.0;
gtk_spin_button_set_value (GTK_SPIN_BUTTON (ps_width_spinbutton),
gtk_spin_button_get_value (GTK_SPIN_BUTTON (ps_width_spinbutton)) * ratio);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (ps_height_spinbutton),
gtk_spin_button_get_value (GTK_SPIN_BUTTON (ps_height_spinbutton)) * ratio);
return TRUE;
}
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