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gimp/plug-ins/common/qbist.c

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/*
* Written 1997 Jens Ch. Restemeier <jrestemeier@currantbun.com>
* This program is based on an algorithm / article by
* Jörn Loviscach.
*
* It appeared in c't 10/95, page 326 and is called
* "Ausgewürfelt - Moderne Kunst algorithmisch erzeugen"
* (~modern art created with algorithms).
*
* It generates one main formula (the middle button) and 8 variations of it.
* If you select a variation it becomes the new main formula. If you
* press "OK" the main formula will be applied to the image.
*
* 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/>.
*
*/
#include "config.h"
#define _GNU_SOURCE /* need PATH_MAX */
#include <string.h>
#include <limits.h>
#include <glib/gstdio.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
#if ! defined PATH_MAX
# if defined _MAX_PATH
# define PATH_MAX _MAX_PATH
# elif defined MAXPATHLEN
# define PATH_MAX MAXPATHLEN
# else
# define PATH_MAX 1024
# endif
#endif
/** qbist renderer ***********************************************************/
#define MAX_TRANSFORMS 36
#define NUM_REGISTERS 6
#define PREVIEW_SIZE 64
#define PLUG_IN_PROC "plug-in-qbist"
#define PLUG_IN_BINARY "qbist"
#define PLUG_IN_ROLE "gimp-qbist"
#define PLUG_IN_VERSION "January 2001, 1.12"
/** types *******************************************************************/
/* experiment with this */
typedef gfloat vreg[3];
typedef enum
{
PROJECTION,
SHIFT,
SHIFTBACK,
ROTATE,
ROTATE2,
MULTIPLY,
SINE,
CONDITIONAL,
COMPLEMENT
} TransformType;
#define NUM_TRANSFORMS (COMPLEMENT + 1)
typedef struct
{
TransformType transformSequence[MAX_TRANSFORMS];
gint source[MAX_TRANSFORMS];
gint control[MAX_TRANSFORMS];
gint dest[MAX_TRANSFORMS];
}
ExpInfo;
typedef struct
{
ExpInfo info;
gint oversampling;
gchar path[PATH_MAX];
}
QbistInfo;
/** prototypes **************************************************************/
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static gboolean dialog_run (void);
static void dialog_new_variations (GtkWidget *widget,
gpointer data);
static void dialog_update_previews (GtkWidget *widget,
gpointer data);
static void dialog_select_preview (GtkWidget *widget,
ExpInfo *n_info);
static QbistInfo qbist_info;
static GRand *gr = NULL;
/** qbist functions *********************************************************/
static void
create_info (ExpInfo *info)
{
gint k;
for (k = 0; k < MAX_TRANSFORMS; k++)
{
info->transformSequence[k] = g_rand_int_range (gr, 0, NUM_TRANSFORMS);
info->source[k] = g_rand_int_range (gr, 0, NUM_REGISTERS);
info->control[k] = g_rand_int_range (gr, 0, NUM_REGISTERS);
info->dest[k] = g_rand_int_range (gr, 0, NUM_REGISTERS);
}
}
static void
modify_info (ExpInfo *o_info,
ExpInfo *n_info)
{
gint k, n;
*n_info = *o_info;
n = g_rand_int_range (gr, 0, MAX_TRANSFORMS);
for (k = 0; k < n; k++)
{
switch (g_rand_int_range (gr, 0, 4))
{
case 0:
n_info->transformSequence[g_rand_int_range (gr, 0, MAX_TRANSFORMS)] =
g_rand_int_range (gr, 0, NUM_TRANSFORMS);
break;
case 1:
n_info->source[g_rand_int_range (gr, 0, MAX_TRANSFORMS)] =
g_rand_int_range (gr, 0, NUM_REGISTERS);
break;
case 2:
n_info->control[g_rand_int_range (gr, 0, MAX_TRANSFORMS)] =
g_rand_int_range (gr, 0, NUM_REGISTERS);
break;
case 3:
n_info->dest[g_rand_int_range (gr, 0, MAX_TRANSFORMS)] =
g_rand_int_range (gr, 0, NUM_REGISTERS);
break;
}
}
}
/*
* Optimizer
*/
static gint used_trans_flag[MAX_TRANSFORMS];
static gint used_reg_flag[NUM_REGISTERS];
static void
check_last_modified (ExpInfo *info,
gint p,
gint n)
{
p--;
while ((p >= 0) && (info->dest[p] != n))
p--;
if (p < 0)
used_reg_flag[n] = 1;
else
{
used_trans_flag[p] = 1;
check_last_modified (info, p, info->source[p]);
check_last_modified (info, p, info->control[p]);
}
}
static void
optimize (ExpInfo *info)
{
gint i;
/* double-arg fix: */
for (i = 0; i < MAX_TRANSFORMS; i++)
{
used_trans_flag[i] = 0;
if (i < NUM_REGISTERS)
used_reg_flag[i] = 0;
/* double-arg fix: */
switch (info->transformSequence[i])
{
case ROTATE:
case ROTATE2:
case COMPLEMENT:
info->control[i] = info->dest[i];
break;
default:
break;
}
}
/* check for last modified item */
check_last_modified (info, MAX_TRANSFORMS, 0);
}
static void
qbist (ExpInfo *info,
guchar *buffer,
gint xp,
gint yp,
gint num,
gint width,
gint height,
gint bpp,
gint oversampling)
{
gint gx;
vreg reg[NUM_REGISTERS];
for (gx = 0; gx < num; gx++)
{
gint accum[3], yy, i;
for (i = 0; i < 3; i++)
{
accum[i] = 0;
}
for (yy = 0; yy < oversampling; yy++)
{
gint xx;
for (xx = 0; xx < oversampling; xx++)
{
for (i = 0; i < NUM_REGISTERS; i++)
{
if (used_reg_flag[i])
{
reg[i][0] = ((gfloat) ((gx + xp) * oversampling + xx)) / ((gfloat) (width * oversampling));
reg[i][1] = ((gfloat) (yp * oversampling + yy)) / ((gfloat) (height * oversampling));
reg[i][2] = ((gfloat) i) / ((gfloat) NUM_REGISTERS);
}
}
for (i = 0; i < MAX_TRANSFORMS; i++)
{
gushort sr, cr, dr;
sr = info->source[i];
cr = info->control[i];
dr = info->dest[i];
if (used_trans_flag[i])
switch (info->transformSequence[i])
{
case PROJECTION:
{
gfloat scalarProd;
scalarProd = (reg[sr][0] * reg[cr][0]) +
(reg[sr][1] * reg[cr][1]) + (reg[sr][2] * reg[cr][2]);
reg[dr][0] = scalarProd * reg[sr][0];
reg[dr][1] = scalarProd * reg[sr][1];
reg[dr][2] = scalarProd * reg[sr][2];
break;
}
case SHIFT:
reg[dr][0] = reg[sr][0] + reg[cr][0];
if (reg[dr][0] >= 1.0)
reg[dr][0] -= 1.0;
reg[dr][1] = reg[sr][1] + reg[cr][1];
if (reg[dr][1] >= 1.0)
reg[dr][1] -= 1.0;
reg[dr][2] = reg[sr][2] + reg[cr][2];
if (reg[dr][2] >= 1.0)
reg[dr][2] -= 1.0;
break;
case SHIFTBACK:
reg[dr][0] = reg[sr][0] - reg[cr][0];
if (reg[dr][0] <= 0.0)
reg[dr][0] += 1.0;
reg[dr][1] = reg[sr][1] - reg[cr][1];
if (reg[dr][1] <= 0.0)
reg[dr][1] += 1.0;
reg[dr][2] = reg[sr][2] - reg[cr][2];
if (reg[dr][2] <= 0.0)
reg[dr][2] += 1.0;
break;
case ROTATE:
reg[dr][0] = reg[sr][1];
reg[dr][1] = reg[sr][2];
reg[dr][2] = reg[sr][0];
break;
case ROTATE2:
reg[dr][0] = reg[sr][2];
reg[dr][1] = reg[sr][0];
reg[dr][2] = reg[sr][1];
break;
case MULTIPLY:
reg[dr][0] = reg[sr][0] * reg[cr][0];
reg[dr][1] = reg[sr][1] * reg[cr][1];
reg[dr][2] = reg[sr][2] * reg[cr][2];
break;
case SINE:
reg[dr][0] = 0.5 + (0.5 * sin (20.0 * reg[sr][0] * reg[cr][0]));
reg[dr][1] = 0.5 + (0.5 * sin (20.0 * reg[sr][1] * reg[cr][1]));
reg[dr][2] = 0.5 + (0.5 * sin (20.0 * reg[sr][2] * reg[cr][2]));
break;
case CONDITIONAL:
if ((reg[cr][0] + reg[cr][1] + reg[cr][2]) > 0.5)
{
reg[dr][0] = reg[sr][0];
reg[dr][1] = reg[sr][1];
reg[dr][2] = reg[sr][2];
}
else
{
reg[dr][0] = reg[cr][0];
reg[dr][1] = reg[cr][1];
reg[dr][2] = reg[cr][2];
}
break;
case COMPLEMENT:
reg[dr][0] = 1.0 - reg[sr][0];
reg[dr][1] = 1.0 - reg[sr][1];
reg[dr][2] = 1.0 - reg[sr][2];
break;
}
}
for (i = 0; i < 3; i++)
{
accum[i] += (unsigned char) (reg[0][i] * 255.0 + 0.5);
}
}
}
for (i = 0; i < bpp; i++)
{
if (i < 3)
{
buffer[i] = (guchar) (((gfloat) accum[i] /
(gfloat) (oversampling * oversampling)) + 0.5);
}
else
{
buffer[i] = 255;
}
}
buffer += bpp;
}
}
/** Plugin interface *********************************************************/
const GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run /* run_proc */
};
MAIN ()
static void
query (void)
{
GimpParamDef args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
{ GIMP_PDB_IMAGE, "image", "Input image (unused)" },
{ GIMP_PDB_DRAWABLE, "drawable", "Input drawable" }
};
gimp_install_procedure (PLUG_IN_PROC,
N_("Generate a huge variety of abstract patterns"),
"This Plug-in is based on an article by "
"Jörn Loviscach (appeared in c't 10/95, page 326). "
"It generates modern art pictures from a random "
"genetic formula.",
"Jörn Loviscach, Jens Ch. Restemeier",
"Jörn Loviscach, Jens Ch. Restemeier",
PLUG_IN_VERSION,
N_("_Qbist..."),
"RGB*",
GIMP_PLUGIN,
G_N_ELEMENTS (args), 0,
args, NULL);
gimp_plugin_menu_register (PLUG_IN_PROC, "<Image>/Filters/Render/Pattern");
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[1];
gint sel_x1, sel_y1, sel_x2, sel_y2;
gint img_height, img_width;
GimpDrawable *drawable;
GimpRunMode run_mode;
GimpPDBStatusType status;
*nreturn_vals = 1;
*return_vals = values;
status = GIMP_PDB_SUCCESS;
if (param[0].type != GIMP_PDB_INT32)
status = GIMP_PDB_CALLING_ERROR;
run_mode = param[0].data.d_int32;
INIT_I18N ();
if (param[2].type != GIMP_PDB_DRAWABLE)
status = GIMP_PDB_CALLING_ERROR;
drawable = gimp_drawable_get (param[2].data.d_drawable);
img_width = gimp_drawable_width (drawable->drawable_id);
img_height = gimp_drawable_height (drawable->drawable_id);
gimp_drawable_mask_bounds (drawable->drawable_id,
&sel_x1, &sel_y1, &sel_x2, &sel_y2);
if (!gimp_drawable_is_rgb (drawable->drawable_id))
status = GIMP_PDB_CALLING_ERROR;
if (status == GIMP_PDB_SUCCESS)
{
gr = g_rand_new ();
memset (&qbist_info, 0, sizeof (qbist_info));
create_info (&qbist_info.info);
qbist_info.oversampling = 4;
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
/* Possibly retrieve data */
gimp_get_data (PLUG_IN_PROC, &qbist_info);
/* Get information from the dialog */
if (dialog_run ())
{
status = GIMP_PDB_SUCCESS;
gimp_set_data (PLUG_IN_PROC, &qbist_info, sizeof (QbistInfo));
}
else
status = GIMP_PDB_EXECUTION_ERROR;
break;
case GIMP_RUN_NONINTERACTIVE:
status = GIMP_PDB_CALLING_ERROR;
break;
case GIMP_RUN_WITH_LAST_VALS:
/* Possibly retrieve data */
gimp_get_data (PLUG_IN_PROC, &qbist_info);
status = GIMP_PDB_SUCCESS;
break;
default:
status = GIMP_PDB_CALLING_ERROR;
break;
}
if (status == GIMP_PDB_SUCCESS)
{
GimpPixelRgn imagePR;
gpointer pr;
gimp_tile_cache_ntiles ((drawable->width + gimp_tile_width () - 1) /
gimp_tile_width ());
gimp_pixel_rgn_init (&imagePR, drawable,
0, 0, img_width, img_height, TRUE, TRUE);
optimize (&qbist_info.info);
gimp_progress_init (_("Qbist"));
for (pr = gimp_pixel_rgns_register (1, &imagePR);
pr != NULL;
pr = gimp_pixel_rgns_process (pr))
{
gint row;
for (row = 0; row < imagePR.h; row++)
{
qbist (&qbist_info.info,
imagePR.data + row * imagePR.rowstride,
imagePR.x,
imagePR.y + row,
imagePR.w,
sel_x2 - sel_x1,
sel_y2 - sel_y1,
imagePR.bpp,
qbist_info.oversampling);
}
gimp_progress_update ((gfloat) (imagePR.y - sel_y1) /
(gfloat) (sel_y2 - sel_y1));
}
gimp_progress_update (1.0);
gimp_drawable_flush (drawable);
gimp_drawable_merge_shadow (drawable->drawable_id, TRUE);
gimp_drawable_update (drawable->drawable_id,
sel_x1, sel_y1,
(sel_x2 - sel_x1), (sel_y2 - sel_y1));
gimp_displays_flush ();
}
g_rand_free (gr);
}
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;
gimp_drawable_detach (drawable);
}
/** User interface ***********************************************************/
static GtkWidget *preview[9];
static ExpInfo info[9];
static ExpInfo last_info[9];
static void
dialog_new_variations (GtkWidget *widget,
gpointer data)
{
gint i;
for (i = 1; i < 9; i++)
modify_info (&(info[0]), &(info[i]));
}
static void
dialog_update_previews (GtkWidget *widget,
gpointer data)
{
gint i, j;
guchar buf[PREVIEW_SIZE * PREVIEW_SIZE * 3];
for (j = 0; j < 9; j++)
{
optimize (&info[(j + 5) % 9]);
for (i = 0; i < PREVIEW_SIZE; i++)
{
qbist (&info[(j + 5) % 9], buf + i * PREVIEW_SIZE * 3,
0, i, PREVIEW_SIZE, PREVIEW_SIZE, PREVIEW_SIZE, 3, 1);
}
gimp_preview_area_draw (GIMP_PREVIEW_AREA (preview[j]),
0, 0, PREVIEW_SIZE, PREVIEW_SIZE,
GIMP_RGB_IMAGE,
buf,
PREVIEW_SIZE *3);
}
}
static void
dialog_select_preview (GtkWidget *widget,
ExpInfo *n_info)
{
memcpy (last_info, info, sizeof (info));
info[0] = *n_info;
dialog_new_variations (widget, NULL);
dialog_update_previews (widget, NULL);
}
/* File I/O stuff */
static guint16
get_be16 (guint8 *buf)
{
return (guint16) buf[0] << 8 | buf[1];
}
static void
set_be16 (guint8 *buf,
guint16 val)
{
buf[0] = val >> 8;
buf[1] = val & 0xFF;
}
static gboolean
load_data (gchar *name)
{
gint i;
FILE *f;
guint8 buf[288];
f = g_fopen (name, "rb");
if (f == NULL)
{
return FALSE;
}
if (fread (buf, 1, sizeof (buf), f) != sizeof (buf))
{
fclose (f);
return FALSE;
}
fclose (f);
for (i = 0; i < MAX_TRANSFORMS; i++)
info[0].transformSequence[i] =
get_be16 (buf + i * 2 + MAX_TRANSFORMS * 2 * 0);
for (i = 0; i < MAX_TRANSFORMS; i++)
info[0].source[i] = get_be16 (buf + i * 2 + MAX_TRANSFORMS * 2 * 1);
for (i = 0; i < MAX_TRANSFORMS; i++)
info[0].control[i] = get_be16 (buf + i * 2 + MAX_TRANSFORMS * 2 * 2);
for (i = 0; i < MAX_TRANSFORMS; i++)
info[0].dest[i] = get_be16 (buf + i * 2 + MAX_TRANSFORMS * 2 * 3);
return TRUE;
}
static gboolean
save_data (gchar *name)
{
gint i = 0;
FILE *f;
guint8 buf[288];
f = g_fopen (name, "wb");
if (f == NULL)
{
return FALSE;
}
for (i = 0; i < MAX_TRANSFORMS; i++)
set_be16 (buf + i * 2 + MAX_TRANSFORMS * 2 * 0,
info[0].transformSequence[i]);
for (i = 0; i < MAX_TRANSFORMS; i++)
set_be16 (buf + i * 2 + MAX_TRANSFORMS * 2 * 1, info[0].source[i]);
for (i = 0; i < MAX_TRANSFORMS; i++)
set_be16 (buf + i * 2 + MAX_TRANSFORMS * 2 * 2, info[0].control[i]);
for (i = 0; i < MAX_TRANSFORMS; i++)
set_be16 (buf + i * 2 + MAX_TRANSFORMS * 2 * 3, info[0].dest[i]);
fwrite (buf, 1, sizeof (buf), f);
fclose (f);
return TRUE;
}
static void
dialog_undo (GtkWidget *widget,
gpointer data)
{
ExpInfo temp_info[9];
memcpy (temp_info, info, sizeof (info));
memcpy (info, last_info, sizeof (info));
dialog_update_previews (NULL, NULL);
memcpy (last_info, temp_info, sizeof (info));
}
static void
dialog_load (GtkWidget *widget,
gpointer data)
{
GtkWidget *parent;
GtkWidget *dialog;
parent = gtk_widget_get_toplevel (widget);
dialog = gtk_file_chooser_dialog_new (_("Load QBE File"),
GTK_WINDOW (parent),
GTK_FILE_CHOOSER_ACTION_OPEN,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OPEN, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK);
gtk_file_chooser_set_filename (GTK_FILE_CHOOSER (dialog), qbist_info.path);
if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_OK)
{
gchar *name = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
strncpy (qbist_info.path, name, PATH_MAX - 1);
load_data (qbist_info.path);
g_free (name);
dialog_new_variations (NULL, NULL);
dialog_update_previews (NULL, NULL);
}
gtk_widget_destroy (dialog);
}
static void
dialog_save (GtkWidget *widget,
gpointer data)
{
GtkWidget *parent;
GtkWidget *dialog;
parent = gtk_widget_get_toplevel (widget);
dialog = gtk_file_chooser_dialog_new (_("Save as QBE File"),
GTK_WINDOW (parent),
GTK_FILE_CHOOSER_ACTION_SAVE,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_SAVE, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK);
gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (dialog),
TRUE);
gtk_file_chooser_set_filename (GTK_FILE_CHOOSER (dialog), qbist_info.path);
if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_OK)
{
gchar *name = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
strncpy (qbist_info.path, name, PATH_MAX - 1);
save_data (qbist_info.path);
g_free (name);
}
gtk_widget_destroy (dialog);
}
static void
dialog_toggle_antialaising (GtkWidget *widget,
gpointer data)
{
qbist_info.oversampling =
gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)) ? 4 : 1;
}
static gboolean
dialog_run (void)
{
GtkWidget *dialog;
GtkWidget *vbox;
GtkWidget *bbox;
GtkWidget *button;
GtkWidget *table;
gint i;
gboolean run;
gimp_ui_init (PLUG_IN_BINARY, TRUE);
dialog = gimp_dialog_new (_("G-Qbist"), PLUG_IN_ROLE,
NULL, 0,
gimp_standard_help_func, PLUG_IN_PROC,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, 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));
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
vbox, FALSE, FALSE, 0);
gtk_widget_show (vbox);
table = gtk_table_new (3, 3, 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);
info[0] = qbist_info.info;
dialog_new_variations (NULL, NULL);
memcpy (last_info, info, sizeof (info));
for (i = 0; i < 9; i++)
{
button = gtk_button_new ();
gtk_table_attach (GTK_TABLE (table),
button, i % 3, (i % 3) + 1, i / 3, (i / 3) + 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (dialog_select_preview),
(gpointer) & (info[(i + 5) % 9]));
preview[i] = gimp_preview_area_new ();
gtk_widget_set_size_request (preview[i], PREVIEW_SIZE, PREVIEW_SIZE);
gtk_container_add (GTK_CONTAINER (button), preview[i]);
gtk_widget_show (preview[i]);
}
button = gtk_check_button_new_with_mnemonic (_("_Antialiasing"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button),
qbist_info.oversampling > 1);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "toggled",
G_CALLBACK (dialog_toggle_antialaising),
NULL);
bbox = gtk_button_box_new (GTK_ORIENTATION_HORIZONTAL);
gtk_button_box_set_layout (GTK_BUTTON_BOX (bbox), GTK_BUTTONBOX_START);
gtk_box_pack_start (GTK_BOX (vbox), bbox, FALSE, FALSE, 0);
gtk_widget_show (bbox);
button = gtk_button_new_from_stock (GTK_STOCK_UNDO);
gtk_container_add (GTK_CONTAINER (bbox), button);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (dialog_undo),
NULL);
button = gtk_button_new_from_stock (GTK_STOCK_OPEN);
gtk_container_add (GTK_CONTAINER (bbox), button);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (dialog_load),
NULL);
button = gtk_button_new_from_stock (GTK_STOCK_SAVE);
gtk_container_add (GTK_CONTAINER (bbox), button);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (dialog_save),
NULL);
gtk_widget_show (dialog);
dialog_update_previews (NULL, NULL);
run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
if (run)
qbist_info.info = info[0];
gtk_widget_destroy (dialog);
return run;
}
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