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gimp/plug-ins/common/convmatrix.c

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/* Convolution Matrix plug-in for the GIMP -- Version 0.1
* Copyright (C) 1997 Lauri Alanko <la@iki.fi>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The GNU General Public License is also available from
* http://www.fsf.org/copyleft/gpl.html
*
*
* CHANGELOG:
* v0.13 15.12.2000
* Made the PDB interface actually work. (Simon Budig <simon@gimp.org>)
*
* v0.12 15.9.1997
* Got rid of the unportable snprintf. Also made some _tiny_ GUI fixes.
*
* v0.11 20.7.1997
* Negative values in the matrix are now abs'ed when used to weight
* alpha. Embossing effects should work properly now. Also fixed a
* totally idiotic bug with embossing.
*
* v0.1 2.7.1997
* Initial release. Works... kinda.
*
*
* TODO:
*
* - remove channels selector (that's what the channels dialog is for)
* - remove idiotic slowdowns
* - clean up code
* - preview
* - optimize properly
* - save & load matrices
* - spiffy frontend for designing matrices
*
* What else?
*
*
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <string.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <gtk/gtk.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
#define RESPONSE_RESET 1
typedef enum
{
EXTEND,
WRAP,
CLEAR,
MIRROR
} BorderMode;
static GimpDrawable *drawable;
static gchar * const channel_labels[] =
{
N_("Gr_ey"),
N_("Re_d"),
N_("_Green"),
N_("_Blue"),
N_("_Alpha")
};
static gchar * const bmode_labels[] =
{
N_("E_xtend"),
N_("_Wrap"),
N_("Cro_p")
};
/* Declare local functions. */
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static gboolean dialog (void);
static void convmatrix (void);
static void check_config (void);
GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
static gint bytes;
static gboolean run_flag = FALSE;
typedef struct
{
gfloat matrix[5][5];
gfloat divisor;
gfloat offset;
gint alpha_alg;
BorderMode bmode;
gint channels[5];
gint autoset;
} config;
static const config default_config =
{
{
{ 0.0, 0.0, 0.0, 0.0, 0.0 },
{ 0.0, 0.0, 0.0, 0.0, 0.0 },
{ 0.0, 0.0, 1.0, 0.0, 0.0 },
{ 0.0, 0.0, 0.0, 0.0, 0.0 },
{ 0.0, 0.0, 0.0, 0.0, 0.0 }
}, /* matrix */
1, /* divisor */
0, /* offset */
1, /* Alpha-handling algorithm */
CLEAR, /* border-mode */
{ 1, 1, 1, 1, 1 }, /* Channels mask */
0 /* autoset */
};
static config my_config;
struct
{
GtkWidget *matrix[5][5];
GtkWidget *divisor;
GtkWidget *offset;
GtkWidget *alpha_alg;
GtkWidget *bmode[3];
GtkWidget *channels[5];
GtkWidget *autoset;
} my_widgets;
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_INT32, "argc_matrix", "The number of elements in the following array. Should be always 25." },
{ GIMP_PDB_FLOATARRAY, "matrix", "The 5x5 convolution matrix" },
{ GIMP_PDB_INT32, "alpha_alg", "Enable weighting by alpha channel" },
{ GIMP_PDB_FLOAT, "divisor", "Divisor" },
{ GIMP_PDB_FLOAT, "offset", "Offset" },
{ GIMP_PDB_INT32, "argc_channels", "The number of elements in following array. Should be always 5." },
{ GIMP_PDB_INT32ARRAY, "channels", "Mask of the channels to be filtered" },
{ GIMP_PDB_INT32, "bmode", "Mode for treating image borders" }
};
gimp_install_procedure ("plug_in_convmatrix",
"A generic 5x5 convolution matrix",
"",
"Lauri Alanko",
"Lauri Alanko",
"1997",
N_("_Convolution Matrix..."),
"RGB*, GRAY*",
GIMP_PLUGIN,
G_N_ELEMENTS (args), 0,
args, NULL);
gimp_plugin_menu_register ("plug_in_convmatrix",
N_("<Image>/Filters/Generic"));
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[1];
GimpRunMode run_mode;
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
gint x, y;
INIT_I18N ();
*nreturn_vals = 1;
*return_vals = values;
run_mode = param[0].data.d_int32;
/* Get the specified drawable */
drawable = gimp_drawable_get (param[2].data.d_drawable);
/* The plug-in is not able to handle images smaller than 3 pixels */
if (drawable->width < 3 || drawable->height < 3)
{
g_message (_("Convolution Matrix does not work on layers "
"smaller than 3 pixels."));
status = GIMP_PDB_EXECUTION_ERROR;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;
return;
}
my_config = default_config;
if (run_mode == GIMP_RUN_NONINTERACTIVE)
{
if (nparams != 11)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
if (param[3].data.d_int32 != 25)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
for (y = 0; y < 5; y++)
for (x = 0; x < 5; x++)
my_config.matrix[x][y]=param[4].data.d_floatarray[y*5+x];
}
my_config.alpha_alg = param[5].data.d_int32;
my_config.divisor = param[6].data.d_float;
my_config.offset = param[7].data.d_float;
if (param[8].data.d_int32 != 5)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
for (y = 0; y < 5; y++)
my_config.channels[y] = param[9].data.d_int32array[y];
}
my_config.bmode = param[10].data.d_int32;
check_config ();
}
}
else
{
gimp_get_data ("plug_in_convmatrix", &my_config);
if (run_mode == GIMP_RUN_INTERACTIVE)
{
/* Oh boy. We get to do a dialog box, because we can't really
* expect the user to set us up with the right values using gdb.
*/
check_config ();
if (! dialog ())
{
/* The dialog was closed, or something similarly evil happened. */
status = GIMP_PDB_EXECUTION_ERROR;
}
}
}
if (status == GIMP_PDB_SUCCESS)
{
/* Make sure that the drawable is gray or RGB color */
if (gimp_drawable_is_rgb (drawable->drawable_id) ||
gimp_drawable_is_gray (drawable->drawable_id))
{
gimp_progress_init (_("Applying convolution"));
gimp_tile_cache_ntiles (2 * (drawable->width /
gimp_tile_width () + 1));
convmatrix ();
if (run_mode != GIMP_RUN_NONINTERACTIVE)
gimp_displays_flush ();
if (run_mode == GIMP_RUN_INTERACTIVE)
gimp_set_data ("plug_in_convmatrix",
&my_config, sizeof (my_config));
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
gimp_drawable_detach (drawable);
}
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;
}
/* A generic wrapper to gimp_pixel_rgn_get_row which handles unlimited
* wrapping or gives you transparent regions outside the image
*/
static void
my_get_row (GimpPixelRgn *PR,
guchar *dest,
gint x,
gint y,
gint w)
{
gint width, height, bytes;
gint i;
width = PR->drawable->width;
height = PR->drawable->height;
bytes = PR->drawable->bpp;
/* Y-wrappings */
switch (my_config.bmode)
{
case WRAP:
/* Wrapped, so we get the proper row from the other side */
while (y < 0) /* This is the _sure_ way to wrap. :) */
y += height;
while (y >= height)
y -= height;
break;
case CLEAR:
/* Beyond borders, so set full transparent. */
if (y < 0 || y >= height)
{
memset (dest, 0, w * bytes);
return; /* Done, so back. */
}
case MIRROR:
/* The border lines are _not_ duplicated in the mirror image */
/* is this right? */
while (y < 0 || y >= height)
{
if (y < 0)
y = -y; /* y=-y-1 */
if (y >= height)
y = 2 * height - y - 2; /* y=2*height-y-1 */
}
break;
case EXTEND:
y = CLAMP (y , 0 , height - 1);
break;
}
switch (my_config.bmode)
{
case CLEAR:
if (x < 0)
{
i = MIN (w, -x);
memset (dest, 0, i * bytes);
dest += i * bytes;
w -= i;
x += i;
}
if (w)
{
i = MIN (w, width);
gimp_pixel_rgn_get_row (PR, dest, x, y, i);
dest += i * bytes;
w -= i;
x += i;
}
if (w)
memset (dest, 0, w * bytes);
break;
case WRAP:
while (x < 0)
x += width;
i = MIN (w, width - x);
gimp_pixel_rgn_get_row (PR, dest, x, y, i);
w -= i;
dest += i * bytes;
x = 0;
while (w)
{
i = MIN (w, width);
gimp_pixel_rgn_get_row (PR, dest, x, y, i);
w -= i;
dest += i * bytes;
}
break;
case EXTEND:
if (x < 0)
{
gimp_pixel_rgn_get_pixel (PR, dest, 0, y);
x++;
w--;
dest += bytes;
while (x < 0 && w)
{
for (i = 0; i < bytes; i++)
{
*dest = *(dest - bytes);
dest++;
}
x++;
w--;
}
}
if (w && width - x > 0)
{
i = MIN (w, width - x);
gimp_pixel_rgn_get_row (PR, dest, x, y, i);
w -= i;
dest += i * bytes;
}
while (w)
{
for (i = 0; i < bytes; i++)
{
*dest= *(dest - bytes);
dest++;
}
x++;
w--;
}
break;
case MIRROR: /* Not yet handled */
break;
}
}
static gfloat
calcmatrix (guchar **srcrow,
gint xoff,
gint i)
{
static gfloat matrixsum = 0;
static gint bytes = 0;
gfloat sum = 0;
gfloat alphasum = 0;
gfloat temp;
gint x, y;
if (!bytes)
{
bytes = drawable->bpp;
for (y = 0; y < 5; y++)
for (x = 0; x < 5; x++)
{
temp = my_config.matrix[x][y];
matrixsum += ABS (temp);
}
}
for (y = 0; y < 5; y++)
for (x = 0; x < 5; x++)
{
temp = my_config.matrix[x][y];
if (i != (bytes - 1) && my_config.alpha_alg == 1)
{
temp *= srcrow[y][xoff + x * bytes +bytes - 1 - i];
alphasum += ABS (temp);
}
temp *= srcrow[y][xoff + x * bytes];
sum += temp;
}
sum /= my_config.divisor;
if (i != (bytes - 1) && my_config.alpha_alg == 1)
{
if (alphasum != 0)
sum = sum * matrixsum / alphasum;
else
sum = 0;
/* sum = srcrow[2][xoff + 2 * bytes] * my_config.matrix[2][2];*/
}
sum += my_config.offset;
return sum;
}
static void
convmatrix (void)
{
GimpPixelRgn srcPR, destPR;
gint width, height, row, col;
gint w, h, i;
gint sx1, sy1, sx2, sy2;
gint x1, x2, y1, y2;
guchar *destrow[3];
guchar *srcrow[5];
guchar *temprow;
gfloat sum;
gint xoff;
gint chanmask[4];
/* Get the input area. This is the bounding box of the selection in
* the image (or the entire image if there is no selection). Only
* operating on the input area is simply an optimization. It doesn't
* need to be done for correct operation. (It simply makes it go
* faster, since fewer pixels need to be operated on).
*/
gimp_drawable_mask_bounds (drawable->drawable_id, &sx1, &sy1, &sx2, &sy2);
w = sx2 - sx1;
h = sy2 - sy1;
/* Get the size of the input image. (This will/must be the same
* as the size of the output image.
*/
width = drawable->width;
height = drawable->height;
bytes = drawable->bpp;
if (gimp_drawable_is_rgb (drawable->drawable_id))
for (i = 0; i <3; i++)
chanmask[i] = my_config.channels[i + 1];
else /* Grayscale */
chanmask[0] = my_config.channels[0];
if (gimp_drawable_has_alpha (drawable->drawable_id))
chanmask[bytes - 1] = my_config.channels[4];
for (i = 0; i < 5; i++)
srcrow[i] = g_new (guchar, (w + 4) * bytes);
for (i = 0; i < 3; i++)
destrow[i]= g_new (guchar, w * bytes);
/* initialize the pixel regions */
x1 = MAX (sx1 - 2, 0);
y1 = MAX (sy1 - 2, 0);
x2 = MIN (sx2 + 2, width);
y2 = MIN (sy2 + 2, height);
gimp_pixel_rgn_init (&srcPR, drawable,
x1, y1, x2 - x1, y2 - y1, FALSE, FALSE);
gimp_pixel_rgn_init (&destPR, drawable, sx1, sy1, w, h, TRUE, TRUE);
/* initialize source arrays */
for (i = 0; i < 5; i++)
my_get_row (&srcPR, srcrow[i], sx1 - 2, sy1 + i - 2, w + 4);
for (row = sy1; row < sy2; row++)
{
xoff = 0;
for (col = sx1; col < sx2; col++)
for (i = 0; i < bytes; i++)
{
if (chanmask[i] <= 0)
sum = srcrow[2][xoff + 2 * bytes];
else
sum = calcmatrix(srcrow, xoff, i);
destrow[2][xoff]= (guchar) CLAMP (sum, 0, 255);
xoff++;
}
if (row > sy1 + 1)
gimp_pixel_rgn_set_row (&destPR, destrow[0], sx1, row - 2, w);
temprow = destrow[0];
destrow[0] = destrow[1];
destrow[1] = destrow[2];
destrow[2] = temprow;
temprow = srcrow[0];
for (i = 0; i < 4; i++)
srcrow[i] = srcrow[i + 1];
srcrow[4] = temprow;
my_get_row (&srcPR, srcrow[4], sx1 - 2, row + 3, w + 4);
if (row % 10 == 0)
gimp_progress_update ((double) (row - sy1) / h);
}
/* put the final rows in the buffer in place */
if (h < 3)
gimp_pixel_rgn_set_row (&destPR, destrow[2], sx1, row - 3, w);
if (h > 1)
gimp_pixel_rgn_set_row (&destPR, destrow[0], sx1, row - 2, w);
if (h > 2)
gimp_pixel_rgn_set_row (&destPR, destrow[1], sx1, row - 1, w);
/* update the timred region */
gimp_drawable_flush (drawable);
gimp_drawable_merge_shadow (drawable->drawable_id, TRUE);
gimp_drawable_update (drawable->drawable_id, sx1, sy1, sx2 - sx1, sy2 - sy1);
}
/***************************************************
* GUI stuff
*/
static void
fprint (gfloat f,
gchar *buffer,
gsize len)
{
gint i, t;
g_snprintf (buffer, len, "%.7f", f);
buffer[len - 1] = '\0';
for (t = 0; t < len - 1 && buffer[t] != '.'; t++);
i = t + 1;
while (buffer[i] != '\0')
{
if (buffer[i] != '0')
t = i + 1;
i++;
}
buffer[t] = '\0';
}
static void
redraw_matrix (void)
{
gint x, y;
gchar buffer[12];
for (y = 0; y < 5; y++)
for (x = 0; x < 5; x++)
{
fprint (my_config.matrix[x][y], buffer, sizeof (buffer));
gtk_entry_set_text (GTK_ENTRY (my_widgets.matrix[x][y]), buffer);
}
}
static void
redraw_channels (void)
{
gint i;
for (i = 0; i < 5; i++)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (my_widgets.channels[i]),
my_config.channels[i] > 0);
}
static void
redraw_autoset (void)
{
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (my_widgets.autoset),
my_config.autoset);
}
static void
redraw_alpha_alg (void)
{
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (my_widgets.alpha_alg),
my_config.alpha_alg > 0);
}
static void
redraw_off_and_div (void)
{
gchar buffer[12];
fprint (my_config.divisor, buffer, sizeof (buffer));
gtk_entry_set_text (GTK_ENTRY (my_widgets.divisor), buffer);
fprint (my_config.offset, buffer, sizeof (buffer));
gtk_entry_set_text (GTK_ENTRY (my_widgets.offset), buffer);
}
static void
redraw_bmode (void)
{
gtk_toggle_button_set_active
(GTK_TOGGLE_BUTTON (my_widgets.bmode[my_config.bmode]), TRUE);
}
static void
redraw_all (void)
{
redraw_matrix ();
redraw_off_and_div ();
redraw_autoset ();
redraw_alpha_alg ();
redraw_bmode ();
redraw_channels ();
}
static void
check_matrix (void)
{
gint x, y;
gboolean valid = FALSE;
gfloat sum = 0.0;
for (y = 0; y < 5; y++)
for (x = 0; x < 5; x++)
{
sum += my_config.matrix[x][y];
if (my_config.matrix[x][y] != 0.0)
valid = TRUE;
}
if (my_config.autoset)
{
if (sum > 0)
{
my_config.offset = 0;
my_config.divisor = sum;
}
else if (sum < 0)
{
my_config.offset = 255;
my_config.divisor = -sum;
}
else
{
my_config.offset = 128;
/* The sum is 0, so this is probably some sort of
* embossing filter. Should divisor be autoset to 1
* or left undefined, ie. for the user to define? */
my_config.divisor = 1;
}
redraw_off_and_div ();
}
/* gtk_widget_set_sensitive(my_widgets.ok,valid); */
}
static void
response_callback (GtkWidget *widget,
gint response_id,
gpointer data)
{
switch (response_id)
{
case RESPONSE_RESET:
my_config = default_config;
check_config ();
redraw_all ();
break;
case GTK_RESPONSE_OK:
run_flag = TRUE;
default:
gtk_widget_destroy (GTK_WIDGET (widget));
break;
}
}
/* Checks that the configuration is valid for the image type */
static void
check_config (void)
{
gint i;
for (i = 0; i < 5; i++)
if (my_config.channels[i] < 0)
my_config.channels[i] = 0;
if (gimp_drawable_is_rgb (drawable->drawable_id))
my_config.channels[0] = -1;
else if (gimp_drawable_is_gray (drawable->drawable_id))
for (i = 1; i < 4; i++)
my_config.channels[i] = -1;
if (!gimp_drawable_has_alpha (drawable->drawable_id))
{
my_config.channels[4] = -1;
my_config.alpha_alg = -1;
my_config.bmode = EXTEND;
}
}
static void
entry_callback (GtkWidget *widget,
gpointer data)
{
gfloat *value = (gfloat *) data;
*value = atof (gtk_entry_get_text (GTK_ENTRY (widget)));
#if 0
check_matrix ();
#else
if (widget == my_widgets.divisor)
gtk_dialog_set_response_sensitive (GTK_DIALOG (gtk_widget_get_toplevel (widget)),
GTK_RESPONSE_OK, (*value != 0.0));
else if (widget != my_widgets.offset)
check_matrix ();
#endif
}
static void
my_toggle_callback (GtkWidget *widget,
gpointer data)
{
gint val = GTK_TOGGLE_BUTTON (widget)->active;
if (val)
*(gint *) data = TRUE;
else
*(gint *) data = FALSE;
if (widget == my_widgets.alpha_alg)
{
gtk_widget_set_sensitive (my_widgets.bmode[CLEAR], val);
if (val == 0 && my_config.bmode == CLEAR)
{
my_config.bmode = EXTEND;
redraw_bmode ();
}
}
else if (widget == my_widgets.autoset)
{
gtk_widget_set_sensitive (my_widgets.divisor, !val);
gtk_widget_set_sensitive (my_widgets.offset, !val);
check_matrix ();
}
}
static void
my_bmode_callback (GtkWidget *widget,
gpointer data)
{
my_config.bmode = GPOINTER_TO_INT (data) - 1;
}
static gboolean
dialog (void)
{
GtkWidget *dlg;
GtkWidget *main_hbox;
GtkWidget *table;
GtkWidget *label;
GtkWidget *entry;
GtkWidget *button;
GtkWidget *box;
GtkWidget *inbox;
GtkWidget *vbox;
GtkWidget *frame;
gint x, y, i;
GSList *group;
gimp_ui_init ("convmatrix", FALSE);
dlg = gimp_dialog_new (_("Convolution Matrix"), "convmatrix",
NULL, 0,
gimp_standard_help_func, "plug-in-convmatrix",
GIMP_STOCK_RESET, RESPONSE_RESET,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
g_signal_connect (dlg, "response",
G_CALLBACK (response_callback),
NULL);
g_signal_connect (dlg, "destroy",
G_CALLBACK (gtk_main_quit),
NULL);
main_hbox = gtk_hbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_hbox), 12);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), main_hbox,
TRUE, TRUE, 0);
vbox = gtk_vbox_new (FALSE, 12);
gtk_box_pack_start (GTK_BOX (main_hbox), vbox, TRUE, TRUE, 0);
frame = gimp_frame_new (_("Matrix"));
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
inbox = gtk_vbox_new (FALSE, 12);
gtk_container_add (GTK_CONTAINER (frame), inbox);
table = gtk_table_new (5, 5, FALSE);
gtk_table_set_row_spacings (GTK_TABLE (table), 4);
gtk_table_set_col_spacings (GTK_TABLE (table), 4);
gtk_box_pack_start (GTK_BOX (inbox), table, TRUE, TRUE, 0);
for (y = 0; y < 5; y++)
for (x = 0; x < 5; x++)
{
my_widgets.matrix[x][y] = entry = gtk_entry_new ();
gtk_widget_set_size_request (entry, 40, -1);
gtk_table_attach (GTK_TABLE (table), entry, x, x+1, y, y+1,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show (entry);
g_signal_connect (entry, "changed",
G_CALLBACK (entry_callback),
&my_config.matrix[x][y]);
}
gtk_widget_show (table);
box = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (inbox), box, FALSE, FALSE, 0);
table = gtk_table_new (1, 2, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_box_pack_start (GTK_BOX (box), table, TRUE, FALSE, 0);
label = gtk_label_new_with_mnemonic (_("D_ivisor:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 0, 1);
gtk_widget_show (label);
my_widgets.divisor = entry = gtk_entry_new ();
gtk_widget_set_size_request (entry, 40, -1);
gtk_table_attach_defaults (GTK_TABLE (table), entry, 1, 2, 0, 1);
gtk_widget_show (entry);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), entry);
g_signal_connect (entry, "changed",
G_CALLBACK (entry_callback),
&my_config.divisor);
gtk_widget_show (table);
table = gtk_table_new (1, 2, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_box_pack_start (GTK_BOX (box), table, TRUE, FALSE, 0);
label = gtk_label_new_with_mnemonic (_("O_ffset:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 0, 1);
gtk_widget_show (label);
my_widgets.offset = entry = gtk_entry_new ();
gtk_widget_set_size_request (entry, 40, -1);
gtk_table_attach_defaults (GTK_TABLE (table), entry, 1, 2, 0, 1);
gtk_widget_show (entry);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), entry);
g_signal_connect (entry, "changed",
G_CALLBACK (entry_callback),
&my_config.offset);
gtk_widget_show (table);
gtk_widget_show (box);
gtk_widget_show (inbox);
gtk_widget_show (frame);
box = gtk_vbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (vbox), box, FALSE, FALSE, 0);
my_widgets.autoset = button =
gtk_check_button_new_with_mnemonic (_("A_utomatic"));
gtk_box_pack_start (GTK_BOX (box), button, TRUE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "toggled",
G_CALLBACK (my_toggle_callback),
&my_config.autoset);
my_widgets.alpha_alg = button =
gtk_check_button_new_with_mnemonic (_("A_lpha-weighting"));
if (my_config.alpha_alg == -1)
gtk_widget_set_sensitive (button, FALSE);
gtk_box_pack_start (GTK_BOX (box), button, TRUE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "toggled",
G_CALLBACK (my_toggle_callback),
&my_config.alpha_alg);
gtk_widget_show (box);
gtk_widget_show (vbox);
inbox = gtk_vbox_new (FALSE, 12);
gtk_box_pack_start (GTK_BOX (main_hbox), inbox, FALSE, FALSE, 0);
frame = gimp_frame_new (_("Border"));
gtk_box_pack_start (GTK_BOX (inbox), frame, FALSE, FALSE, 0);
box = gtk_vbox_new (FALSE, 2);
gtk_container_add (GTK_CONTAINER (frame), box);
group = NULL;
for (i = 0; i < 3; i++)
{
my_widgets.bmode[i] = button =
gtk_radio_button_new_with_mnemonic (group, gettext (bmode_labels[i]));
group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
gtk_box_pack_start (GTK_BOX (box), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "toggled",
G_CALLBACK (my_bmode_callback),
GINT_TO_POINTER (i + 1));
}
gtk_widget_show (box);
gtk_widget_show (frame);
frame = gimp_frame_new (_("Channels"));
gtk_box_pack_start (GTK_BOX (inbox), frame, FALSE, FALSE, 0);
box = gtk_vbox_new (FALSE, 2);
gtk_container_add (GTK_CONTAINER (frame), box);
for (i = 0; i < 5; i++)
{
my_widgets.channels[i] = button =
gtk_check_button_new_with_mnemonic (gettext (channel_labels[i]));
if (my_config.channels[i] < 0)
gtk_widget_set_sensitive (button, FALSE);
gtk_box_pack_start (GTK_BOX (box), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "toggled",
G_CALLBACK (my_toggle_callback),
&my_config.channels[i]);
}
gtk_widget_show (box);
gtk_widget_show (frame);
gtk_widget_show (inbox);
gtk_widget_show (main_hbox);
gtk_widget_show (dlg);
redraw_all ();
gtk_widget_set_sensitive (my_widgets.bmode[CLEAR],
(my_config.alpha_alg > 0));
gtk_main ();
return run_flag;
}
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