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gimp/plug-ins/common/displace.c

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/* Displace --- image filter plug-in for The Gimp image manipulation program
* Copyright (C) 1996 Stephen Robert Norris
* Much of the code taken from the pinch plug-in by 1996 Federico Mena Quintero
*
* 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.
*
* You can contact me at srn@flibble.cs.su.oz.au.
* Please send me any patches or enhancements to this code.
* You can contact the original The Gimp authors at gimp@xcf.berkeley.edu
*
* Extensive modifications to the dialog box, parameters, and some
* legibility stuff in displace() by Federico Mena Quintero ---
* federico@nuclecu.unam.mx. If there are any bugs in these
* changes, they are my fault and not Stephen's.
*
* JTL: May 29th 1997
* Added (part of) the patch from Eiichi Takamori -- the part which removes the border artefacts
* (http://ha1.seikyou.ne.jp/home/taka/gimp/displace/displace.html)
* Added ability to use transparency as the identity transformation
* (Full transparency is treated as if it was grey 0.5)
* and the possibility to use RGB/RGBA pictures where the intensity of the pixel is taken into account
*
*/
/* Version 1.12. */
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <signal.h>
#include <gtk/gtk.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
/* Some useful macros */
#define ENTRY_WIDTH 75
#define TILE_CACHE_SIZE 48
#define WRAP 0
#define SMEAR 1
#define BLACK 2
typedef struct
{
gdouble amount_x;
gdouble amount_y;
gint do_x;
gint do_y;
gint displace_map_x;
gint displace_map_y;
gint displace_type;
} DisplaceVals;
typedef struct
{
gint run;
} DisplaceInterface;
/*
* Function prototypes.
*/
static void query (void);
static void run (gchar *name,
gint nparams,
GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static void displace (GimpDrawable *drawable);
static gint displace_dialog (GimpDrawable *drawable);
static GimpTile * displace_pixel (GimpDrawable * drawable,
GimpTile * tile,
gint width,
gint height,
gint x1,
gint y1,
gint x2,
gint y2,
gint x,
gint y,
gint * row,
gint * col,
guchar * pixel);
static guchar bilinear (gdouble x,
gdouble y,
guchar * v);
static gint displace_map_constrain (gint32 image_id,
gint32 drawable_id,
gpointer data);
static void displace_map_x_callback (gint32 id,
gpointer data);
static void displace_map_y_callback (gint32 id,
gpointer data);
static void displace_ok_callback (GtkWidget *widget,
gpointer data);
static gdouble displace_map_give_value (guchar* ptr,
gint alpha,
gint bytes);
/***** Local vars *****/
GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
static DisplaceVals dvals =
{
20.0, /* amount_x */
20.0, /* amount_y */
TRUE, /* do_x */
TRUE, /* do_y */
-1, /* displace_map_x */
-1, /* displace_map_y */
WRAP /* displace_type */
};
static DisplaceInterface dint =
{
FALSE /* run */
};
/***** Functions *****/
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_FLOAT, "amount_x", "Displace multiplier for X direction" },
{ GIMP_PDB_FLOAT, "amount_y", "Displace multiplier for Y direction" },
{ GIMP_PDB_INT32, "do_x", "Displace in X direction?" },
{ GIMP_PDB_INT32, "do_y", "Displace in Y direction?" },
{ GIMP_PDB_DRAWABLE, "displace_map_x", "Displacement map for X direction" },
{ GIMP_PDB_DRAWABLE, "displace_map_y", "Displacement map for Y direction" },
{ GIMP_PDB_INT32, "displace_type", "Edge behavior: { WRAP (0), SMEAR (1), BLACK (2) }" }
};
static gint nargs = sizeof (args) / sizeof (args[0]);
gimp_install_procedure ("plug_in_displace",
"Displace the contents of the specified drawable",
"Displaces the contents of the specified drawable "
"by the amounts specified by 'amount_x' and "
"'amount_y' multiplied by the intensity of "
"corresponding pixels in the 'displace_map' "
"drawables. Both 'displace_map' drawables must be "
"of type GIMP_GRAY_IMAGE for this operation to succeed.",
"Stephen Robert Norris & (ported to 1.0 by) "
"Spencer Kimball",
"Stephen Robert Norris",
"1996",
N_("<Image>/Filters/Map/Displace..."),
"RGB*, GRAY*",
GIMP_PLUGIN,
nargs, 0,
args, NULL);
}
static void
run (gchar *name,
gint nparams,
GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[1];
GimpDrawable *drawable;
GimpRunModeType run_mode;
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
run_mode = param[0].data.d_int32;
/* Get the specified drawable */
drawable = gimp_drawable_get (param[2].data.d_drawable);
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
/* Possibly retrieve data */
INIT_I18N_UI();
gimp_get_data ("plug_in_displace", &dvals);
/* First acquire information with a dialog */
if (! displace_dialog (drawable))
return;
break;
case GIMP_RUN_NONINTERACTIVE:
INIT_I18N();
/* Make sure all the arguments are there! */
if (nparams != 10)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
dvals.amount_x = param[3].data.d_float;
dvals.amount_y = param[4].data.d_float;
dvals.do_x = param[5].data.d_int32;
dvals.do_y = param[6].data.d_int32;
dvals.displace_map_x = param[7].data.d_int32;
dvals.displace_map_y = param[8].data.d_int32;
dvals.displace_type = param[9].data.d_int32;
}
break;
case GIMP_RUN_WITH_LAST_VALS:
/* Possibly retrieve data */
gimp_get_data ("plug_in_displace", &dvals);
break;
default:
break;
}
if (status == GIMP_PDB_SUCCESS && (dvals.do_x || dvals.do_y))
{
gimp_progress_init (_("Displacing..."));
/* set the tile cache size */
gimp_tile_cache_ntiles (TILE_CACHE_SIZE);
/* run the displace effect */
displace (drawable);
if (run_mode != GIMP_RUN_NONINTERACTIVE)
gimp_displays_flush ();
/* Store data */
if (run_mode == GIMP_RUN_INTERACTIVE)
gimp_set_data ("plug_in_displace", &dvals, sizeof (DisplaceVals));
}
values[0].data.d_status = status;
gimp_drawable_detach (drawable);
}
static int
displace_dialog (GimpDrawable *drawable)
{
GtkWidget *dlg;
GtkWidget *label;
GtkWidget *toggle;
GtkWidget *toggle_hbox;
GtkWidget *frame;
GtkWidget *table;
GtkWidget *spinbutton;
GtkObject *adj;
GtkWidget *option_menu;
GtkWidget *menu;
GtkWidget *sep;
GSList *group = NULL;
gimp_ui_init ("displace", FALSE);
dlg = gimp_dialog_new (_("Displace"), "displace",
gimp_standard_help_func, "filters/displace.html",
GTK_WIN_POS_MOUSE,
FALSE, TRUE, FALSE,
_("OK"), displace_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);
/* The main table */
frame = gtk_frame_new (_("Displace Options"));
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);
table = gtk_table_new (4, 3, FALSE);
gtk_table_set_row_spacings (GTK_TABLE (table), 4);
gtk_table_set_col_spacings (GTK_TABLE (table), 4);
gtk_container_set_border_width (GTK_CONTAINER (table), 4);
gtk_container_add (GTK_CONTAINER (frame), table);
/* X options */
toggle = gtk_check_button_new_with_label (_("X Displacement:"));
gtk_table_attach (GTK_TABLE (table), toggle, 0, 1, 0, 1,
GTK_FILL, GTK_FILL, 0, 0);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
GTK_SIGNAL_FUNC (gimp_toggle_button_update),
&dvals.do_x);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), dvals.do_x);
gtk_widget_show (toggle);
spinbutton = gimp_spin_button_new (&adj, dvals.amount_x,
(gint) drawable->width * -2,
drawable->width * 2,
1, 10, 0, 1, 2);
gtk_table_attach (GTK_TABLE (table), spinbutton, 1, 2, 0, 1,
GTK_FILL, GTK_FILL, 0, 0);
gtk_signal_connect (GTK_OBJECT (adj), "value_changed",
GTK_SIGNAL_FUNC (gimp_double_adjustment_update),
&dvals.amount_x);
gtk_widget_set_sensitive (spinbutton, dvals.do_x);
gtk_object_set_data (GTK_OBJECT (toggle), "set_sensitive", spinbutton);
gtk_widget_show (spinbutton);
option_menu = gtk_option_menu_new ();
gtk_table_attach (GTK_TABLE (table), option_menu, 2, 3, 0, 1,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
menu = gimp_drawable_menu_new (displace_map_constrain, displace_map_x_callback,
drawable, dvals.displace_map_x);
gtk_option_menu_set_menu (GTK_OPTION_MENU (option_menu), menu);
gtk_widget_set_sensitive (option_menu, dvals.do_x);
gtk_object_set_data (GTK_OBJECT (spinbutton), "set_sensitive", option_menu);
gtk_widget_show (option_menu);
/* Y Options */
toggle = gtk_check_button_new_with_label (_("Y Displacement:"));
gtk_table_attach (GTK_TABLE (table), toggle, 0, 1, 1, 2,
GTK_FILL, GTK_FILL, 0, 0);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
GTK_SIGNAL_FUNC (gimp_toggle_button_update),
&dvals.do_y);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), dvals.do_y);
gtk_widget_show (toggle);
spinbutton = gimp_spin_button_new (&adj, dvals.amount_y,
(gint) drawable->height * -2,
drawable->height * 2,
1, 10, 0, 1, 2);
gtk_table_attach (GTK_TABLE (table), spinbutton, 1, 2, 1, 2,
GTK_FILL, GTK_FILL, 0, 0);
gtk_signal_connect (GTK_OBJECT (adj), "value_changed",
GTK_SIGNAL_FUNC (gimp_double_adjustment_update),
&dvals.amount_y);
gtk_widget_set_sensitive (spinbutton, dvals.do_y);
gtk_object_set_data (GTK_OBJECT (toggle), "set_sensitive", spinbutton);
gtk_widget_show (spinbutton);
option_menu = gtk_option_menu_new ();
gtk_table_attach (GTK_TABLE (table), option_menu, 2, 3, 1, 2,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
menu = gimp_drawable_menu_new (displace_map_constrain, displace_map_y_callback,
drawable, dvals.displace_map_y);
gtk_option_menu_set_menu (GTK_OPTION_MENU (option_menu), menu);
gtk_widget_set_sensitive (option_menu, dvals.do_y);
gtk_object_set_data (GTK_OBJECT (spinbutton), "set_sensitive", option_menu);
gtk_widget_show (option_menu);
/* Displacement Type */
sep = gtk_hseparator_new ();
gtk_table_attach_defaults (GTK_TABLE (table), sep, 0, 3, 2, 3);
gtk_widget_show (sep);
toggle_hbox = gtk_hbox_new (FALSE, 6);
gtk_table_attach (GTK_TABLE (table), toggle_hbox, 0, 3, 3, 4,
GTK_FILL, GTK_FILL, 0, 0);
label = gtk_label_new ( _("On Edges:"));
gtk_box_pack_start (GTK_BOX (toggle_hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
toggle = gtk_radio_button_new_with_label (group, _("Wrap"));
group = gtk_radio_button_group (GTK_RADIO_BUTTON (toggle));
gtk_box_pack_start (GTK_BOX (toggle_hbox), toggle, FALSE, FALSE, 0);
gtk_object_set_user_data (GTK_OBJECT (toggle), (gpointer) WRAP);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
GTK_SIGNAL_FUNC (gimp_radio_button_update),
&dvals.displace_type);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
dvals.displace_type == WRAP);
gtk_widget_show (toggle);
toggle = gtk_radio_button_new_with_label (group, _("Smear"));
group = gtk_radio_button_group (GTK_RADIO_BUTTON (toggle));
gtk_box_pack_start (GTK_BOX (toggle_hbox), toggle, FALSE, FALSE, 0);
gtk_object_set_user_data (GTK_OBJECT (toggle), (gpointer) SMEAR);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
GTK_SIGNAL_FUNC (gimp_radio_button_update),
&dvals.displace_type);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
dvals.displace_type == SMEAR);
gtk_widget_show (toggle);
toggle = gtk_radio_button_new_with_label (group, _("Black"));
group = gtk_radio_button_group (GTK_RADIO_BUTTON (toggle));
gtk_box_pack_start (GTK_BOX (toggle_hbox), toggle, FALSE, FALSE, 0);
gtk_object_set_user_data (GTK_OBJECT (toggle), (gpointer) BLACK);
gtk_signal_connect (GTK_OBJECT (toggle), "toggled",
GTK_SIGNAL_FUNC (gimp_radio_button_update),
&dvals.displace_type);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
dvals.displace_type == BLACK);
gtk_widget_show (toggle);
gtk_widget_show (toggle_hbox);
gtk_widget_show (table);
gtk_widget_show (frame);
gtk_widget_show (dlg);
gtk_main ();
gdk_flush ();
return dint.run;
}
/* The displacement is done here. */
static void
displace (GimpDrawable *drawable)
{
GimpDrawable *map_x;
GimpDrawable *map_y;
GimpPixelRgn dest_rgn;
GimpPixelRgn map_x_rgn;
GimpPixelRgn map_y_rgn;
GimpTile * tile = NULL;
gint row = -1;
gint col = -1;
gpointer pr;
gint width;
gint height;
gint bytes;
guchar *destrow, *dest;
guchar *mxrow, *mx;
guchar *myrow, *my;
guchar pixel[4][4];
gint x1, y1, x2, y2;
gint x, y;
gint progress, max_progress;
gdouble amnt;
gdouble needx, needy;
gint xi, yi;
guchar values[4];
guchar val;
gint k;
gdouble xm_val, ym_val;
gint xm_alpha = 0;
gint ym_alpha = 0;
gint xm_bytes = 1;
gint ym_bytes = 1;
/* initialize */
mxrow = NULL;
myrow = NULL;
/* Get selection area */
gimp_drawable_mask_bounds (drawable->id, &x1, &y1, &x2, &y2);
width = drawable->width;
height = drawable->height;
bytes = drawable->bpp;
progress = 0;
max_progress = (x2 - x1) * (y2 - y1);
/*
* The algorithm used here is simple - see
* http://the-tech.mit.edu/KPT/Tips/KPT7/KPT7.html for a description.
*/
/* Get the drawables */
if (dvals.displace_map_x != -1 && dvals.do_x)
{
map_x = gimp_drawable_get (dvals.displace_map_x);
gimp_pixel_rgn_init (&map_x_rgn, map_x,
x1, y1, (x2 - x1), (y2 - y1), FALSE, FALSE);
if (gimp_drawable_has_alpha(map_x->id))
xm_alpha = 1;
xm_bytes = gimp_drawable_bpp(map_x->id);
}
else
map_x = NULL;
if (dvals.displace_map_y != -1 && dvals.do_y)
{
map_y = gimp_drawable_get (dvals.displace_map_y);
gimp_pixel_rgn_init (&map_y_rgn, map_y,
x1, y1, (x2 - x1), (y2 - y1), FALSE, FALSE);
if (gimp_drawable_has_alpha(map_y->id))
ym_alpha = 1;
ym_bytes = gimp_drawable_bpp(map_y->id);
}
else
map_y = NULL;
gimp_pixel_rgn_init (&dest_rgn, drawable,
x1, y1, (x2 - x1), (y2 - y1), TRUE, TRUE);
/* Register the pixel regions */
if (dvals.do_x && dvals.do_y)
pr = gimp_pixel_rgns_register (3, &dest_rgn, &map_x_rgn, &map_y_rgn);
else if (dvals.do_x)
pr = gimp_pixel_rgns_register (2, &dest_rgn, &map_x_rgn);
else if (dvals.do_y)
pr = gimp_pixel_rgns_register (2, &dest_rgn, &map_y_rgn);
else
pr = NULL;
for (pr = pr; pr != NULL; pr = gimp_pixel_rgns_process (pr))
{
destrow = dest_rgn.data;
if (dvals.do_x)
mxrow = map_x_rgn.data;
if (dvals.do_y)
myrow = map_y_rgn.data;
for (y = dest_rgn.y; y < (dest_rgn.y + dest_rgn.h); y++)
{
dest = destrow;
mx = mxrow;
my = myrow;
/*
* We could move the displacement image address calculation out of here,
* but when we can have different sized displacement and destination
* images we'd have to move it back anyway.
*/
for (x = dest_rgn.x; x < (dest_rgn.x + dest_rgn.w); x++)
{
if (dvals.do_x)
{
xm_val = displace_map_give_value(mx, xm_alpha, xm_bytes);
amnt = dvals.amount_x * (xm_val - 127.5) / 127.5;
needx = x + amnt;
mx += xm_bytes;
}
else
needx = x;
if (dvals.do_y)
{
ym_val = displace_map_give_value(my, ym_alpha, ym_bytes);
amnt = dvals.amount_y * (ym_val - 127.5) / 127.5;
needy = y + amnt;
my += ym_bytes;
}
else
needy = y;
/* Calculations complete; now copy the proper pixel */
if (needx >= 0.0)
xi = (int) needx;
else
xi = -((int) -needx + 1);
if (needy >= 0.0)
yi = (int) needy;
else
yi = -((int) -needy + 1);
tile = displace_pixel (drawable, tile, width, height, x1, y1, x2, y2, xi, yi, &row, &col, pixel[0]);
tile = displace_pixel (drawable, tile, width, height, x1, y1, x2, y2, xi + 1, yi, &row, &col, pixel[1]);
tile = displace_pixel (drawable, tile, width, height, x1, y1, x2, y2, xi, yi + 1, &row, &col, pixel[2]);
tile = displace_pixel (drawable, tile, width, height, x1, y1, x2, y2, xi + 1, yi + 1, &row, &col, pixel[3]);
for (k = 0; k < bytes; k++)
{
values[0] = pixel[0][k];
values[1] = pixel[1][k];
values[2] = pixel[2][k];
values[3] = pixel[3][k];
val = bilinear(needx, needy, values);
*dest++ = val;
} /* for */
}
destrow += dest_rgn.rowstride;
if (dvals.do_x)
mxrow += map_x_rgn.rowstride;
if (dvals.do_y)
myrow += map_y_rgn.rowstride;
}
progress += dest_rgn.w * dest_rgn.h;
gimp_progress_update ((double) progress / (double) max_progress);
} /* for */
if (tile)
gimp_tile_unref (tile, FALSE);
/* detach from the map drawables */
if (dvals.do_x)
gimp_drawable_detach (map_x);
if (dvals.do_y)
gimp_drawable_detach (map_y);
/* update the region */
gimp_drawable_flush (drawable);
gimp_drawable_merge_shadow (drawable->id, TRUE);
gimp_drawable_update (drawable->id, x1, y1, (x2 - x1), (y2 - y1));
} /* displace */
static gdouble
displace_map_give_value (guchar *pt,
gint alpha,
gint bytes)
{
gdouble ret, val_alpha;
if (bytes >= 3)
ret = INTENSITY (pt[0], pt[1], pt[2]);
else
ret = (gdouble) *pt;
if (alpha)
{
val_alpha = pt[bytes - 1];
ret = ((ret - 127.5) * val_alpha / 255.0) + 127.5;
};
return (ret);
}
static GimpTile *
displace_pixel (GimpDrawable *drawable,
GimpTile *tile,
gint width,
gint height,
gint x1,
gint y1,
gint x2,
gint y2,
gint x,
gint y,
gint *row,
gint *col,
guchar *pixel)
{
static guchar empty_pixel[4] = {0, 0, 0, 0};
guchar *data;
gint b;
/* Tile the image. */
if (dvals.displace_type == WRAP)
{
if (x < 0)
x = width - (-x % width);
else
x %= width;
if (y < 0)
y = height - (-y % height);
else
y %= height;
}
/* Smear out the edges of the image by repeating pixels. */
else if (dvals.displace_type == SMEAR)
{
if (x < 0)
x = 0;
else if (x > width - 1)
x = width - 1;
if (y < 0)
y = 0;
else if (y > height - 1)
y = height - 1;
}
if (x >= x1 && y >= y1 && x < x2 && y < y2)
{
if ((x >> 6 != *col) || (y >> 6 != *row))
{
*col = x / 64;
*row = y / 64;
if (tile)
gimp_tile_unref (tile, FALSE);
tile = gimp_drawable_get_tile (drawable, FALSE, *row, *col);
gimp_tile_ref (tile);
}
data = tile->data + tile->bpp * (tile->ewidth * (y % 64) + (x % 64));
}
else
data = empty_pixel;
for (b = 0; b < drawable->bpp; b++)
pixel[b] = data[b];
return tile;
}
static guchar
bilinear (gdouble x,
gdouble y,
guchar *v)
{
gdouble m0, m1;
x = fmod(x, 1.0);
y = fmod(y, 1.0);
if (x < 0)
x += 1.0;
if (y < 0)
y += 1.0;
m0 = (gdouble) v[0] + x * ((gdouble) v[1] - v[0]);
m1 = (gdouble) v[2] + x * ((gdouble) v[3] - v[2]);
return (guchar) (m0 + y * (m1 - m0));
}
/* Displace interface functions */
static gint
displace_map_constrain (gint32 image_id,
gint32 drawable_id,
gpointer data)
{
GimpDrawable *drawable;
drawable = (GimpDrawable *) data;
if (drawable_id == -1)
return TRUE;
if (gimp_drawable_width (drawable_id) == drawable->width &&
gimp_drawable_height (drawable_id) == drawable->height)
return TRUE;
else
return FALSE;
}
static void
displace_map_x_callback (gint32 id,
gpointer data)
{
dvals.displace_map_x = id;
}
static void
displace_map_y_callback (gint32 id,
gpointer data)
{
dvals.displace_map_y = id;
}
static void
displace_ok_callback (GtkWidget *widget,
gpointer data)
{
dint.run = TRUE;
gtk_widget_destroy (GTK_WIDGET (data));
}
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