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gimp/plug-ins/common/decompose.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* Decompose plug-in (C) 1997 Peter Kirchgessner
* e-mail: peter@kirchgessner.net, WWW: http://www.kirchgessner.net
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
* This filter decomposes RGB-images into several types of channels
*/
/* Event history:
* V 1.00, PK, 29-Jul-97, Creation
* V 1.01, PK, 19-Mar-99, Update for GIMP V1.1.3
* Prepare for localization
* Use g_message() in interactive mode
*/
static char ident[] = "@(#) GIMP Decompose plug-in v1.01 19-Mar-99";
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <gtk/gtk.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
/* Declare local functions
*/
static void query (void);
static void run (gchar *name,
gint nparams,
GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static gint32 decompose (gint32 image_id,
gint32 drawable_ID,
gchar *extract_type,
gint32 *drawable_ID_dst);
static gint32 create_new_image (gchar *filename,
guint width,
guint height,
GimpImageBaseType type,
gint32 *layer_ID,
GimpDrawable **drawable,
GimpPixelRgn *pixel_rgn);
static void extract_rgb (guchar *src, gint bpp, gint numpix, guchar **dst);
static void extract_red (guchar *src, gint bpp, gint numpix, guchar **dst);
static void extract_green (guchar *src, gint bpp, gint numpix, guchar **dst);
static void extract_blue (guchar *src, gint bpp, gint numpix, guchar **dst);
static void extract_alpha (guchar *src, gint bpp, gint numpix, guchar **dst);
static void extract_hsv (guchar *src, gint bpp, gint numpix, guchar **dst);
static void extract_hue (guchar *src, gint bpp, gint numpix, guchar **dst);
static void extract_sat (guchar *src, gint bpp, gint numpix, guchar **dst);
static void extract_val (guchar *src, gint bpp, gint numpix, guchar **dst);
static void extract_cmy (guchar *src, gint bpp, gint numpix, guchar **dst);
static void extract_cyan (guchar *src, gint bpp, gint numpix, guchar **dst);
static void extract_magenta (guchar *src, gint bpp, gint numpix, guchar **dst);
static void extract_yellow (guchar *src, gint bpp, gint numpix, guchar **dst);
static void extract_cmyk (guchar *src, gint bpp, gint numpix, guchar **dst);
static void extract_cyank (guchar *src, gint bpp, gint numpix, guchar **dst);
static void extract_magentak (guchar *src, gint bpp, gint numpix, guchar **dst);
static void extract_yellowk (guchar *src, gint bpp, gint numpix, guchar **dst);
static gint decompose_dialog (void);
static void decompose_ok_callback (GtkWidget *widget,
gpointer data);
/* Maximum number of new images generated by an extraction */
#define MAX_EXTRACT_IMAGES 4
/* Description of an extraction */
typedef struct
{
gchar *type; /* What to extract */
gint dialog; /* Dialog-Flag. Set it to 1 if you want to appear */
/* this extract function within the dialog */
gint num_images; /* Number of images to create */
gchar *channel_name[MAX_EXTRACT_IMAGES]; /* Names of channels to extract */
/* Function that performs the extraction */
void (*extract_fun) (guchar *src, int bpp, gint numpix,
guchar **dst);
} EXTRACT;
static EXTRACT extract[] =
{
{ N_("RGB"), TRUE, 3, { N_("red"),
N_("green"),
N_("blue") }, extract_rgb },
{ N_("Red"), FALSE, 1, { N_("red") }, extract_red },
{ N_("Green"), FALSE, 1, { N_("green") }, extract_green },
{ N_("Blue"), FALSE, 1, { N_("blue") }, extract_blue },
{ N_("HSV"), TRUE, 3, { N_("hue"),
N_("saturation"),
N_("value") }, extract_hsv },
{ N_("Hue"), FALSE, 1, { N_("hue") }, extract_hue },
{ N_("Saturation"), FALSE, 1, { N_("saturation") }, extract_sat },
{ N_("Value"), FALSE, 1, { N_("value") }, extract_val },
{ N_("CMY"), TRUE, 3, { N_("cyan"),
N_("magenta"),
N_("yellow") }, extract_cmy },
{ N_("Cyan"), FALSE, 1, { N_("cyan") }, extract_cyan },
{ N_("Magenta"), FALSE, 1, { N_("magenta") }, extract_magenta },
{ N_("Yellow"), FALSE, 1, { N_("yellow") }, extract_yellow },
{ N_("CMYK"), TRUE, 4, { N_("cyan_k"),
N_("magenta_k"),
N_("yellow_k"),
N_("black") }, extract_cmyk },
{ N_("Cyan_K"), FALSE, 1, { N_("cyan_k") }, extract_cyank },
{ N_("Magenta_K"), FALSE, 1, { N_("magenta_k") }, extract_magentak },
{ N_("Yellow_K"), FALSE, 1, { N_("yellow_k") }, extract_yellowk },
{ N_("Alpha"), TRUE, 1, { N_("alpha") }, extract_alpha }
};
/* Number of types of extractions */
#define NUM_EXTRACT_TYPES (sizeof (extract) / sizeof (extract[0]))
typedef struct
{
gchar extract_type[32];
} DecoVals;
typedef struct
{
gint extract_flag[NUM_EXTRACT_TYPES];
gint run;
} DecoInterface;
GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
static DecoVals decovals =
{
"rgb" /* Decompose type */
};
static DecoInterface decoint =
{
{ 0 }, /* extract flags */
FALSE /* run */
};
static GimpRunModeType run_mode;
MAIN ()
static void
query (void)
{
static GimpParamDef args[] =
{
{ GIMP_PDB_INT32, "run_mode", "Interactive, non-interactive" },
{ GIMP_PDB_IMAGE, "image", "Input image (unused)" },
{ GIMP_PDB_DRAWABLE, "drawable", "Input drawable" },
{ GIMP_PDB_STRING, "decompose_type", "What to decompose: RGB, Red, Green, Blue, HSV, Hue, Saturation, Value, CMY, Cyan, Magenta, Yellow, CMYK, Cyan_K, Magenta_K, Yellow_K, Alpha" }
};
static GimpParamDef return_vals[] =
{
{ GIMP_PDB_IMAGE, "new_image", "Output gray image" },
{ GIMP_PDB_IMAGE, "new_image", "Output gray image (N/A for single channel extract)" },
{ GIMP_PDB_IMAGE, "new_image", "Output gray image (N/A for single channel extract)" },
{ GIMP_PDB_IMAGE, "new_image", "Output gray image (N/A for single channel extract)" }
};
static gint nargs = sizeof (args) / sizeof (args[0]);
static gint nreturn_vals = sizeof (return_vals) / sizeof (return_vals[0]);
gimp_install_procedure ("plug_in_decompose",
"Decompose an image into different types of channels",
"This function creates new gray images with "
"different channel information in each of them",
"Peter Kirchgessner",
"Peter Kirchgessner (peter@kirchgessner.net)",
"1997",
N_("<Image>/Image/Mode/Decompose..."),
"RGB*",
GIMP_PLUGIN,
nargs, nreturn_vals,
args, return_vals);
}
static void
run (gchar *name,
gint nparams,
GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[MAX_EXTRACT_IMAGES+1];
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
GimpImageType drawable_type;
gint32 num_images;
gint32 image_ID_extract[MAX_EXTRACT_IMAGES];
gint j;
INIT_I18N_UI();
run_mode = param[0].data.d_int32;
*nreturn_vals = MAX_EXTRACT_IMAGES+1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;
for (j = 0; j < MAX_EXTRACT_IMAGES; j++)
{
values[j+1].type = GIMP_PDB_IMAGE;
values[j+1].data.d_int32 = -1;
}
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
/* Possibly retrieve data */
gimp_get_data ("plug_in_decompose", &decovals);
/* First acquire information with a dialog */
if (! decompose_dialog ())
return;
break;
case GIMP_RUN_NONINTERACTIVE:
/* Make sure all the arguments are there! */
if (nparams != 4)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
strncpy (decovals.extract_type, param[3].data.d_string,
sizeof (decovals.extract_type));
decovals.extract_type[sizeof (decovals.extract_type)-1] = '\0';
}
break;
case GIMP_RUN_WITH_LAST_VALS:
/* Possibly retrieve data */
gimp_get_data ("plug_in_decompose", &decovals);
break;
default:
break;
}
/* Make sure that the drawable is RGB color */
drawable_type = gimp_drawable_type (param[2].data.d_drawable);
if ((drawable_type != GIMP_RGB_IMAGE) && (drawable_type != GIMP_RGBA_IMAGE))
{
g_message ("decompose: Can only work on RGB*_IMAGE");
status = GIMP_PDB_CALLING_ERROR;
}
if (status == GIMP_PDB_SUCCESS)
{
if (run_mode != GIMP_RUN_NONINTERACTIVE)
gimp_progress_init (_("Decomposing..."));
num_images = decompose (param[1].data.d_image, param[2].data.d_drawable,
decovals.extract_type, image_ID_extract);
if (num_images <= 0)
{
status = GIMP_PDB_EXECUTION_ERROR;
}
else
{
for (j = 0; j < num_images; j++)
{
values[j+1].data.d_int32 = image_ID_extract[j];
gimp_image_undo_enable (image_ID_extract[j]);
gimp_image_clean_all (image_ID_extract[j]);
if (run_mode != GIMP_RUN_NONINTERACTIVE)
gimp_display_new (image_ID_extract[j]);
}
/* Store data */
if (run_mode == GIMP_RUN_INTERACTIVE)
gimp_set_data ("plug_in_decompose", &decovals, sizeof (DecoVals));
}
}
values[0].data.d_status = status;
}
/* Decompose an image. It returns the number of new (gray) images.
The image IDs for the new images are returned in image_ID_dst.
On failure, -1 is returned.
*/
static gint32
decompose (gint32 image_ID,
gint32 drawable_ID,
char *extract_type,
gint32 *image_ID_dst)
{
gint i, j, extract_idx, scan_lines;
gint height, width, tile_height, num_images;
guchar *src = (guchar *)ident; /* Just to satisfy gcc/lint */
gchar *filename;
guchar *dst[MAX_EXTRACT_IMAGES];
gint32 layer_ID_dst[MAX_EXTRACT_IMAGES];
GimpDrawable *drawable_src, *drawable_dst[MAX_EXTRACT_IMAGES];
GimpPixelRgn pixel_rgn_src, pixel_rgn_dst[MAX_EXTRACT_IMAGES];
extract_idx = -1; /* Search extract type */
for (j = 0; j < NUM_EXTRACT_TYPES; j++)
{
if (g_strcasecmp (extract_type, extract[j].type) == 0)
{
extract_idx = j;
break;
}
}
if (extract_idx < 0) return (-1);
/* Check structure of source image */
drawable_src = gimp_drawable_get (drawable_ID);
if (drawable_src->bpp < 3)
{
g_message ("decompose: not an RGB image");
return (-1);
}
if ((extract[extract_idx].extract_fun == extract_alpha) &&
(!gimp_drawable_has_alpha (drawable_ID)))
{
g_message ("decompose: No alpha channel available");
return (-1);
}
width = drawable_src->width;
height = drawable_src->height;
tile_height = gimp_tile_height ();
gimp_pixel_rgn_init (&pixel_rgn_src, drawable_src, 0, 0, width, height,
FALSE, FALSE);
/* allocate a buffer for retrieving information from the src pixel region */
src = g_new (guchar, tile_height * width * drawable_src->bpp);
/* Create all new gray images */
num_images = extract[extract_idx].num_images;
if (num_images > MAX_EXTRACT_IMAGES)
num_images = MAX_EXTRACT_IMAGES;
for (j = 0; j < num_images; j++)
{
/* Build a filename like <imagename>-<channel>.<extension> */
char *fname = g_strdup (gimp_image_get_filename (image_ID));
char *extension = fname + strlen (fname) - 1;
while (extension >= fname)
{
if (*extension == '.') break;
extension--;
}
if (extension >= fname)
{
*(extension++) = '\0';
filename = g_strdup_printf ("%s-%s.%s", fname,
gettext (extract[extract_idx].channel_name[j]),
extension);
}
else
{
filename = g_strdup_printf ("%s-%s", fname,
gettext (extract[extract_idx].channel_name[j]));
}
image_ID_dst[j] = create_new_image (filename, width, height, GIMP_GRAY,
layer_ID_dst+j, drawable_dst+j,
pixel_rgn_dst+j);
g_free (filename);
g_free (fname);
dst[j] = g_new (guchar, tile_height * width);
}
i = 0;
while (i < height)
{
/* Get source pixel region */
scan_lines = (i+tile_height-1 < height) ? tile_height : (height-i);
gimp_pixel_rgn_get_rect (&pixel_rgn_src, src, 0, i, width, scan_lines);
/* Extract the channel information */
extract[extract_idx].extract_fun (src, drawable_src->bpp, scan_lines*width,
dst);
/* Set destination pixel regions */
for (j = 0; j < num_images; j++)
gimp_pixel_rgn_set_rect (&(pixel_rgn_dst[j]), dst[j], 0, i, width,
scan_lines);
i += scan_lines;
if (run_mode != GIMP_RUN_NONINTERACTIVE)
gimp_progress_update (((gdouble)i) / (gdouble)height);
}
g_free (src);
for (j = 0; j < num_images; j++)
{
gimp_drawable_flush (drawable_dst[j]);
gimp_drawable_detach (drawable_dst[j]);
g_free (dst[j]);
}
gimp_drawable_flush (drawable_src);
gimp_drawable_detach (drawable_src);
return (num_images);
}
/* Create an image. Sets layer_ID, drawable and rgn. Returns image_ID */
static gint32
create_new_image (gchar *filename,
guint width,
guint height,
GimpImageBaseType type,
gint32 *layer_ID,
GimpDrawable **drawable,
GimpPixelRgn *pixel_rgn)
{
gint32 image_ID;
GimpImageType gdtype;
if (type == GIMP_GRAY)
gdtype = GIMP_GRAY_IMAGE;
else if (type == GIMP_INDEXED)
gdtype = GIMP_INDEXED_IMAGE;
else
gdtype = GIMP_RGB_IMAGE;
image_ID = gimp_image_new (width, height, type);
gimp_image_set_filename (image_ID, filename);
*layer_ID = gimp_layer_new (image_ID, _("Background"), width, height,
gdtype, 100, GIMP_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);
}
/* Extract functions */
static void
extract_rgb (guchar *src,
gint bpp,
gint numpix,
guchar **dst)
{
register guchar *rgb_src = src;
register guchar *red_dst = dst[0];
register guchar *green_dst = dst[1];
register guchar *blue_dst = dst[2];
register gint count = numpix, offset = bpp-3;
while (count-- > 0)
{
*(red_dst++) = *(rgb_src++);
*(green_dst++) = *(rgb_src++);
*(blue_dst++) = *(rgb_src++);
rgb_src += offset;
}
}
static void
extract_red (guchar *src,
gint bpp,
gint numpix,
guchar **dst)
{
register guchar *rgb_src = src;
register guchar *red_dst = dst[0];
register gint count = numpix, offset = bpp;
while (count-- > 0)
{
*(red_dst++) = *rgb_src;
rgb_src += offset;
}
}
static void
extract_green (guchar *src,
gint bpp,
gint numpix,
guchar **dst)
{
register guchar *rgb_src = src+1;
register guchar *green_dst = dst[0];
register gint count = numpix, offset = bpp;
while (count-- > 0)
{
*(green_dst++) = *rgb_src;
rgb_src += offset;
}
}
static void
extract_blue (guchar *src,
gint bpp,
gint numpix,
guchar **dst)
{
register guchar *rgb_src = src+2;
register guchar *blue_dst = dst[0];
register gint count = numpix, offset = bpp;
while (count-- > 0)
{
*(blue_dst++) = *rgb_src;
rgb_src += offset;
}
}
static void
extract_alpha (guchar *src,
gint bpp,
gint numpix,
guchar **dst)
{
register guchar *rgb_src = src+3;
register guchar *alpha_dst = dst[0];
register gint count = numpix, offset = bpp;
while (count-- > 0)
{
*(alpha_dst++) = *rgb_src;
rgb_src += offset;
}
}
static void
extract_cmy (guchar *src,
gint bpp,
gint numpix,
guchar **dst)
{
register guchar *rgb_src = src;
register guchar *cyan_dst = dst[0];
register guchar *magenta_dst = dst[1];
register guchar *yellow_dst = dst[2];
register gint count = numpix, offset = bpp-3;
while (count-- > 0)
{
*(cyan_dst++) = 255 - *(rgb_src++);
*(magenta_dst++) = 255 - *(rgb_src++);
*(yellow_dst++) = 255 - *(rgb_src++);
rgb_src += offset;
}
}
static void
extract_hsv (guchar *src,
gint bpp,
gint numpix,
guchar **dst)
{
register guchar *rgb_src = src;
register guchar *hue_dst = dst[0];
register guchar *sat_dst = dst[1];
register guchar *val_dst = dst[2];
register gint count = numpix, offset = bpp;
gdouble hue, sat, val;
while (count-- > 0)
{
gimp_rgb_to_hsv4 (rgb_src, &hue, &sat, &val);
*hue_dst++ = (guchar) (hue * 255.999);
*sat_dst++ = (guchar) (sat * 255.999);
*val_dst++ = (guchar) (val * 255.999);
rgb_src += offset;
}
}
static void
extract_hue (guchar *src,
gint bpp,
gint numpix,
guchar **dst)
{
register guchar *rgb_src = src;
register guchar *hue_dst = dst[0];
register gint count = numpix, offset = bpp;
gdouble hue, dummy;
while (count-- > 0)
{
gimp_rgb_to_hsv4 (rgb_src, &hue, &dummy, &dummy);
*hue_dst++ = (guchar) (hue * 255.999);
rgb_src += offset;
}
}
static void
extract_sat (guchar *src,
gint bpp,
gint numpix,
guchar **dst)
{
register guchar *rgb_src = src;
register guchar *sat_dst = dst[0];
register gint count = numpix, offset = bpp;
gdouble sat, dummy;
while (count-- > 0)
{
gimp_rgb_to_hsv4 (rgb_src, &dummy, &sat, &dummy);
*sat_dst++ = (guchar) (sat * 255.999);
rgb_src += offset;
}
}
static void
extract_val (guchar *src,
gint bpp,
gint numpix,
guchar **dst)
{
register guchar *rgb_src = src;
register guchar *val_dst = dst[0];
register gint count = numpix, offset = bpp;
gdouble val, dummy;
while (count-- > 0)
{
gimp_rgb_to_hsv4 (rgb_src, &dummy, &dummy, &val);
*val_dst++ = (guchar) (val * 255.999);
rgb_src += offset;
}
}
static void
extract_cyan (guchar *src,
gint bpp,
gint numpix,
guchar **dst)
{
register guchar *rgb_src = src;
register guchar *cyan_dst = dst[0];
register gint count = numpix, offset = bpp-1;
while (count-- > 0)
{
*(cyan_dst++) = 255 - *(rgb_src++);
rgb_src += offset;
}
}
static void
extract_magenta (guchar *src,
gint bpp,
gint numpix,
guchar **dst)
{
register guchar *rgb_src = src+1;
register guchar *magenta_dst = dst[0];
register gint count = numpix, offset = bpp-1;
while (count-- > 0)
{
*(magenta_dst++) = 255 - *(rgb_src++);
rgb_src += offset;
}
}
static void
extract_yellow (guchar *src,
gint bpp,
gint numpix,
guchar **dst)
{
register guchar *rgb_src = src+2;
register guchar *yellow_dst = dst[0];
register gint count = numpix, offset = bpp-1;
while (count-- > 0)
{
*(yellow_dst++) = 255 - *(rgb_src++);
rgb_src += offset;
}
}
static void
extract_cmyk (guchar *src,
gint bpp,
gint numpix,
guchar **dst)
{
register guchar *rgb_src = src;
register guchar *cyan_dst = dst[0];
register guchar *magenta_dst = dst[1];
register guchar *yellow_dst = dst[2];
register guchar *black_dst = dst[3];
register guchar k, s;
register gint count = numpix, offset = bpp-3;
while (count-- > 0)
{
*cyan_dst = k = 255 - *(rgb_src++);
*magenta_dst = s = 255 - *(rgb_src++);
if (s < k)
k = s;
*yellow_dst = s = 255 - *(rgb_src++);
if (s < k)
k = s; /* Black intensity is minimum of c, m, y */
if (k)
{
*cyan_dst -= k; /* Remove common part of c, m, y */
*magenta_dst -= k;
*yellow_dst -= k;
}
cyan_dst++;
magenta_dst++;
yellow_dst++;
*(black_dst++) = k;
rgb_src += offset;
}
}
static void
extract_cyank (guchar *src,
gint bpp,
gint numpix,
guchar **dst)
{
register guchar *rgb_src = src;
register guchar *cyan_dst = dst[0];
register guchar s, k;
register gint count = numpix, offset = bpp-3;
while (count-- > 0)
{
*cyan_dst = k = 255 - *(rgb_src++);
s = 255 - *(rgb_src++); /* magenta */
if (s < k) k = s;
s = 255 - *(rgb_src++); /* yellow */
if (s < k) k = s;
if (k) *cyan_dst -= k;
cyan_dst++;
rgb_src += offset;
}
}
static void
extract_magentak (guchar *src,
gint bpp,
gint numpix,
guchar **dst)
{
register guchar *rgb_src = src;
register guchar *magenta_dst = dst[0];
register guchar s, k;
register gint count = numpix, offset = bpp-3;
while (count-- > 0)
{
k = 255 - *(rgb_src++); /* cyan */
*magenta_dst = s = 255 - *(rgb_src++); /* magenta */
if (s < k)
k = s;
s = 255 - *(rgb_src++); /* yellow */
if (s < k)
k = s;
if (k)
*magenta_dst -= k;
magenta_dst++;
rgb_src += offset;
}
}
static void
extract_yellowk (guchar *src,
gint bpp,
gint numpix,
guchar **dst)
{
register guchar *rgb_src = src;
register guchar *yellow_dst = dst[0];
register guchar s, k;
register gint count = numpix, offset = bpp-3;
while (count-- > 0)
{
k = 255 - *(rgb_src++); /* cyan */
s = 255 - *(rgb_src++); /* magenta */
if (s < k) k = s;
*yellow_dst = s = 255 - *(rgb_src++);
if (s < k)
k = s;
if (k)
*yellow_dst -= k;
yellow_dst++;
rgb_src += offset;
}
}
static gint
decompose_dialog (void)
{
GtkWidget *dlg;
GtkWidget *toggle;
GtkWidget *frame;
GtkWidget *vbox;
GSList *group;
gint j;
gimp_ui_init ("decompose", FALSE);
dlg = gimp_dialog_new (_("Decompose"), "decompose",
gimp_standard_help_func, "filters/decompose.html",
GTK_WIN_POS_MOUSE,
FALSE, TRUE, FALSE,
_("OK"), decompose_ok_callback,
NULL, NULL, NULL, TRUE, FALSE,
_("Cancel"), gtk_widget_destroy,
NULL, 1, NULL, FALSE, TRUE,
NULL);
gtk_signal_connect (GTK_OBJECT (dlg), "destroy",
GTK_SIGNAL_FUNC (gtk_main_quit),
NULL);
/* parameter settings */
frame = gtk_frame_new (_("Extract Channels:"));
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
gtk_container_set_border_width (GTK_CONTAINER (frame), 6);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), frame, TRUE, TRUE, 0);
vbox = gtk_vbox_new (FALSE, 1);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
gtk_container_add (GTK_CONTAINER (frame), vbox);
group = NULL;
for (j = 0; j < NUM_EXTRACT_TYPES; j++)
{
if (!extract[j].dialog)
continue;
toggle = gtk_radio_button_new_with_label (group, gettext (extract[j].type));
group = gtk_radio_button_group (GTK_RADIO_BUTTON (toggle));
gtk_box_pack_start (GTK_BOX (vbox), toggle, TRUE, TRUE, 0);
decoint.extract_flag[j] =
(g_strcasecmp (decovals.extract_type, extract[j].type) == 0);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
GTK_SIGNAL_FUNC (gimp_toggle_button_update),
&(decoint.extract_flag[j]));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
decoint.extract_flag[j]);
gtk_widget_show (toggle);
}
gtk_widget_show (vbox);
gtk_widget_show (frame);
gtk_widget_show (dlg);
gtk_main ();
gdk_flush ();
return decoint.run;
}
static void
decompose_ok_callback (GtkWidget *widget,
gpointer data)
{
gint j;
decoint.run = TRUE;
gtk_widget_destroy (GTK_WIDGET (data));
for (j = 0; j < NUM_EXTRACT_TYPES; j++)
{
if (decoint.extract_flag[j])
{
strcpy (decovals.extract_type, extract[j].type);
break;
}
}
}
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