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gimp/plug-ins/common/oilify.c

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/*
* This is a plug-in for GIMP.
*
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
* Copyright (C) 1996 Torsten Martinsen
* Copyright (C) 2007 Daniel Richard G.
*
* 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"
#include <string.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include <libgimpmath/gimpmath.h>
#include "libgimp/stdplugins-intl.h"
#define PLUG_IN_PROC "plug-in-oilify"
#define PLUG_IN_ENHANCED_PROC "plug-in-oilify-enhanced"
#define PLUG_IN_BINARY "oilify"
#define PLUG_IN_ROLE "gimp-oilify"
#define SCALE_WIDTH 125
#define HISTSIZE 256
#define MODE_RGB 0
#define MODE_INTEN 1
typedef struct
{
gdouble mask_size;
gboolean use_mask_size_map;
gint mask_size_map;
gdouble exponent;
gboolean use_exponent_map;
gint exponent_map;
gint mode;
} OilifyVals;
/* 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 void oilify (GimpDrawable *drawable,
GimpPreview *preview);
static gboolean oilify_dialog (GimpDrawable *drawable);
const GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
static OilifyVals ovals =
{
8.0, /* mask size */
FALSE, /* use mask-size map? */
-1, /* mask-size map */
8.0, /* exponent */
FALSE, /* use exponent map? */
-1, /* exponent map */
MODE_INTEN /* mode */
};
MAIN ()
static void
query (void)
{
static const 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_PDB_INT32, "mask-size", "Oil paint mask size" },
{ GIMP_PDB_INT32, "mode", "Algorithm { RGB (0), INTENSITY (1) }" }
};
static const GimpParamDef args_enhanced[] =
{
{ 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_PDB_INT32, "mode", "Algorithm { RGB (0), INTENSITY (1) }" },
{ GIMP_PDB_INT32, "mask-size", "Oil paint mask size" },
{ GIMP_PDB_DRAWABLE, "mask-size-map", "Mask size control map" },
{ GIMP_PDB_INT32, "exponent", "Oil paint exponent" },
{ GIMP_PDB_DRAWABLE, "exponent-map", "Exponent control map" }
};
gimp_install_procedure (PLUG_IN_PROC,
N_("Smear colors to simulate an oil painting"),
"This function performs the well-known oil-paint "
"effect on the specified drawable.",
"Torsten Martinsen",
"Torsten Martinsen",
"1996",
N_("Oili_fy..."),
"RGB*, GRAY*",
GIMP_PLUGIN,
G_N_ELEMENTS (args), 0,
args, NULL);
gimp_plugin_menu_register (PLUG_IN_PROC, "<Image>/Filters/Artistic");
gimp_install_procedure (PLUG_IN_ENHANCED_PROC,
N_("Smear colors to simulate an oil painting"),
"This function performs the well-known oil-paint "
"effect on the specified drawable.",
"Torsten Martinsen, Daniel Richard G.",
"Torsten Martinsen, Daniel Richard G.",
"2007",
NULL,
"RGB*, GRAY*",
GIMP_PLUGIN,
G_N_ELEMENTS (args_enhanced), 0,
args_enhanced, NULL);
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
static GimpParam values[1];
GimpDrawable *drawable;
GimpRunMode run_mode;
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
INIT_I18N ();
run_mode = param[0].data.d_int32;
/* Get the specified drawable */
drawable = gimp_drawable_get (param[2].data.d_drawable);
gimp_tile_cache_ntiles (2 * drawable->ntile_cols);
*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 */
gimp_get_data (PLUG_IN_PROC, &ovals);
/* First acquire information with a dialog */
if (! oilify_dialog (drawable))
return;
break;
case GIMP_RUN_NONINTERACTIVE:
/* Interpret the arguments per the name used to invoke us */
if (! strcmp (name, PLUG_IN_PROC))
{
if (nparams != 5)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
ovals.mask_size = (gdouble) param[3].data.d_int32;
ovals.mode = param[4].data.d_int32;
}
}
else if (! strcmp (name, PLUG_IN_ENHANCED_PROC))
{
if (nparams < 5 || nparams > 8)
{
status = GIMP_PDB_CALLING_ERROR;
}
else
{
ovals.mode = param[3].data.d_int32;
ovals.mask_size = (gdouble) param[4].data.d_int32;
if (nparams >= 6)
ovals.mask_size_map = param[5].data.d_int32;
if (nparams >= 7)
ovals.exponent = (gdouble) param[6].data.d_int32;
if (nparams == 8)
ovals.exponent_map = param[7].data.d_int32;
ovals.use_mask_size_map = ovals.mask_size_map >= 0;
ovals.use_exponent_map = ovals.exponent_map >= 0;
if (ovals.mask_size < 1.0 ||
ovals.exponent < 1.0 ||
(ovals.mode != MODE_INTEN && ovals.mode != MODE_RGB) ||
(ovals.mode == MODE_INTEN &&
! gimp_drawable_is_rgb (drawable->drawable_id)))
{
status = GIMP_PDB_CALLING_ERROR;
}
}
}
break;
case GIMP_RUN_WITH_LAST_VALS:
/* Possibly retrieve data */
gimp_get_data (PLUG_IN_PROC, &ovals);
break;
default:
break;
}
/* Make sure that the drawable is gray or RGB color */
if ((status == GIMP_PDB_SUCCESS) &&
(gimp_drawable_is_rgb (drawable->drawable_id) ||
gimp_drawable_is_gray (drawable->drawable_id)))
{
gimp_progress_init (_("Oil painting"));
oilify (drawable, NULL);
if (run_mode != GIMP_RUN_NONINTERACTIVE)
gimp_displays_flush ();
/* Store data */
if (run_mode == GIMP_RUN_INTERACTIVE)
gimp_set_data (PLUG_IN_PROC, &ovals, sizeof (OilifyVals));
}
else
{
/* gimp_message ("oilify: cannot operate on indexed color images"); */
status = GIMP_PDB_EXECUTION_ERROR;
}
values[0].data.d_status = status;
gimp_drawable_detach (drawable);
}
/*
* Helper function to read a sample from a mask-size/exponent map
*/
static inline gfloat
get_map_value (const guchar *src,
gint bpp)
{
gfloat value;
if (bpp >= 3)
value = GIMP_RGB_LUMINANCE (src[0], src[1], src[2]);
else
value = *src;
if (value < 1.0)
value = 1.0;
/* value should be in [0,1] */
value /= 255.0;
return value;
}
/*
* This is a special-case form of the powf() function, limited to integer
* exponents. It calculates e.g. x^13 as (x^8)*(x^4)*(x^1).
*
* x can be anything, y must be in [0,255]
*/
static inline gfloat
fast_powf (gfloat x, gint y)
{
gfloat value;
gfloat x_pow[8];
guint y_uint = (guint) y;
guint bitmask;
gint i;
if (y_uint & 0x01)
value = x;
else
value = 1.0;
x_pow[0] = x;
for (bitmask = 0x02, i = 1;
bitmask <= y_uint;
bitmask <<= 1, i++)
{
/* x_pow[i] == x_pow[i-1]^2 == x^(2^i) */
x_pow[i] = SQR (x_pow[i - 1]);
if (y_uint & bitmask)
value *= x_pow[i];
}
return value;
}
/*
* For each i in [0, HISTSIZE), hist[i] is the number of occurrences of the
* value i. Return a value in [0, HISTSIZE) weighted heavily toward the
* most frequent values in the histogram.
*
* Assuming that hist_max is the maximum number of occurrences for any
* one value in the histogram, the weight given to each value i is
*
* weight = (hist[i] / hist_max)^exponent
*
* (i.e. the normalized histogram frequency raised to some power)
*/
static inline guchar
weighted_average_value (gint hist[HISTSIZE], gfloat exponent)
{
gint i;
gint hist_max = 1;
gint exponent_int = 0;
gfloat sum = 0.0;
gfloat div = 1.0e-6;
gint value;
for (i = 0; i < HISTSIZE; i++)
hist_max = MAX (hist_max, hist[i]);
if ((exponent - floor (exponent)) < 0.001 && exponent <= 255.0)
exponent_int = (gint) exponent;
for (i = 0; i < HISTSIZE; i++)
{
gfloat ratio = (gfloat) hist[i] / (gfloat) hist_max;
gfloat weight;
if (exponent_int)
weight = fast_powf (ratio, exponent_int);
else
weight = pow (ratio, exponent);
sum += weight * (gfloat) i;
div += weight;
}
value = (gint) (sum / div);
return (guchar) CLAMP0255 (value);
}
/*
* For each i in [0, HISTSIZE), hist[i] is the number of occurrences of
* pixels with intensity i. hist_rgb[][i] is the average color of those
* pixels with intensity i, but with each channel multiplied by hist[i].
* Write to dest a pixel whose color is a weighted average of all the
* colors in hist_rgb[][], biased heavily toward those with the most
* frequently-occurring intensities (as noted in hist[]).
*
* The weight formula is the same as in weighted_average_value().
*/
static inline void
weighted_average_color (gint hist[HISTSIZE],
gint hist_rgb[4][HISTSIZE],
gfloat exponent,
guchar *dest,
gint bpp)
{
gint i, b;
gint hist_max = 1;
gint exponent_int = 0;
gfloat div = 1.0e-6;
gfloat color[4] = { 0.0, 0.0, 0.0, 0.0 };
for (i = 0; i < HISTSIZE; i++)
hist_max = MAX (hist_max, hist[i]);
if ((exponent - floor (exponent)) < 0.001 && exponent <= 255.0)
exponent_int = (gint) exponent;
for (i = 0; i < HISTSIZE; i++)
{
gfloat ratio = (gfloat) hist[i] / (gfloat) hist_max;
gfloat weight;
if (exponent_int)
weight = fast_powf (ratio, exponent_int);
else
weight = pow (ratio, exponent);
if (hist[i] > 0)
for (b = 0; b < bpp; b++)
color[b] += weight * (gfloat) hist_rgb[b][i] / (gfloat) hist[i];
div += weight;
}
for (b = 0; b < bpp; b++)
{
gint c = (gint) (color[b] / div);
dest[b] = (guchar) CLAMP0255 (c);
}
}
/*
* For all x and y as requested, replace the pixel at (x,y)
* with a weighted average of the most frequently occurring
* values in a circle of mask_size diameter centered at (x,y).
*/
static void
oilify (GimpDrawable *drawable,
GimpPreview *preview)
{
gboolean use_inten;
gboolean use_msmap = FALSE;
gboolean use_emap = FALSE;
GimpDrawable *mask_size_map_drawable = NULL;
GimpDrawable *exponent_map_drawable = NULL;
GimpPixelRgn mask_size_map_rgn;
GimpPixelRgn exponent_map_rgn;
gint msmap_bpp = 0;
gint emap_bpp = 0;
GimpPixelRgn dest_rgn;
GimpPixelRgn *regions[3];
gint n_regions;
gint bpp;
gint *sqr_lut;
gint x1, y1, x2, y2;
gint width, height;
gint Hist[HISTSIZE];
gint Hist_rgb[4][HISTSIZE];
gpointer pr;
gint progress, max_progress;
guchar *src_buf;
guchar *src_inten_buf = NULL;
gint i;
use_inten = (ovals.mode == MODE_INTEN);
/* Get the selection bounds */
if (preview)
{
gimp_preview_get_position (preview, &x1, &y1);
gimp_preview_get_size (preview, &width, &height);
x2 = x1 + width;
y2 = y1 + height;
}
else
{
gimp_drawable_mask_bounds (drawable->drawable_id, &x1, &y1, &x2, &y2);
width = x2 - x1;
height = y2 - y1;
}
progress = 0;
max_progress = width * height;
bpp = drawable->bpp;
/*
* Look-up-table implementation of the square function, for use in the
* VERY TIGHT inner loops
*/
{
gint lut_size = (gint) ovals.mask_size / 2 + 1;
sqr_lut = g_new (gint, lut_size);
for (i = 0; i < lut_size; i++)
sqr_lut[i] = SQR (i);
}
/* Get the map drawables, if applicable */
if (ovals.use_mask_size_map && ovals.mask_size_map >= 0)
{
use_msmap = TRUE;
mask_size_map_drawable = gimp_drawable_get (ovals.mask_size_map);
gimp_pixel_rgn_init (&mask_size_map_rgn, mask_size_map_drawable,
x1, y1, width, height, FALSE, FALSE);
msmap_bpp = mask_size_map_drawable->bpp;
}
if (ovals.use_exponent_map && ovals.exponent_map >= 0)
{
use_emap = TRUE;
exponent_map_drawable = gimp_drawable_get (ovals.exponent_map);
gimp_pixel_rgn_init (&exponent_map_rgn, exponent_map_drawable,
x1, y1, width, height, FALSE, FALSE);
emap_bpp = exponent_map_drawable->bpp;
}
gimp_pixel_rgn_init (&dest_rgn, drawable,
x1, y1, width, height, (preview == NULL), TRUE);
{
GimpPixelRgn src_rgn;
gimp_pixel_rgn_init (&src_rgn, drawable,
x1, y1, width, height, FALSE, FALSE);
src_buf = g_new (guchar, width * height * bpp);
gimp_pixel_rgn_get_rect (&src_rgn, src_buf, x1, y1, width, height);
}
/*
* If we're working in intensity mode, then generate a separate intensity
* map of the source image. This way, we can avoid calculating the
* intensity of any given source pixel more than once.
*/
if (use_inten)
{
guchar *src;
guchar *dest;
src_inten_buf = g_new (guchar, width * height);
for (i = 0,
src = src_buf,
dest = src_inten_buf
;
i < (width * height)
;
i++,
src += bpp,
dest++)
{
*dest = (guchar) GIMP_RGB_LUMINANCE (src[0], src[1], src[2]);
}
}
n_regions = 0;
regions[n_regions++] = &dest_rgn;
if (use_msmap)
regions[n_regions++] = &mask_size_map_rgn;
if (use_emap)
regions[n_regions++] = &exponent_map_rgn;
for (pr = gimp_pixel_rgns_register2 (n_regions, regions);
pr != NULL;
pr = gimp_pixel_rgns_process (pr))
{
gint y;
guchar *dest_row;
guchar *src_msmap_row = NULL;
guchar *src_emap_row = NULL;
for (y = dest_rgn.y,
dest_row = dest_rgn.data,
src_msmap_row = mask_size_map_rgn.data, /* valid iff use_msmap */
src_emap_row = exponent_map_rgn.data /* valid iff use_emap */
;
y < (gint) (dest_rgn.y + dest_rgn.h)
;
y++,
dest_row += dest_rgn.rowstride,
src_msmap_row += mask_size_map_rgn.rowstride, /* valid iff use_msmap */
src_emap_row += exponent_map_rgn.rowstride) /* valid iff use_emap */
{
gint x;
guchar *dest;
guchar *src_msmap = NULL;
guchar *src_emap = NULL;
for (x = dest_rgn.x,
dest = dest_row,
src_msmap = src_msmap_row, /* valid iff use_msmap */
src_emap = src_emap_row /* valid iff use_emap */
;
x < (gint) (dest_rgn.x + dest_rgn.w)
;
x++,
dest += bpp,
src_msmap += msmap_bpp, /* valid iff use_msmap */
src_emap += emap_bpp) /* valid iff use_emap */
{
gint radius, radius_squared;
gfloat exponent;
gint mask_x1, mask_y1;
gint mask_x2, mask_y2;
gint mask_y;
gint src_offset;
guchar *src_row;
guchar *src_inten_row = NULL;
if (use_msmap)
{
gfloat factor = get_map_value (src_msmap, msmap_bpp);
radius = ROUND (factor * (0.5 * ovals.mask_size));
}
else
{
radius = (gint) ovals.mask_size / 2;
}
radius_squared = SQR (radius);
exponent = ovals.exponent;
if (use_emap)
exponent *= get_map_value (src_emap, emap_bpp);
if (use_inten)
memset (Hist, 0, sizeof (Hist));
memset (Hist_rgb, 0, sizeof (Hist_rgb));
mask_x1 = CLAMP ((x - radius), x1, x2);
mask_y1 = CLAMP ((y - radius), y1, y2);
mask_x2 = CLAMP ((x + radius + 1), x1, x2);
mask_y2 = CLAMP ((y + radius + 1), y1, y2);
src_offset = (mask_y1 - y1) * width + (mask_x1 - x1);
for (mask_y = mask_y1,
src_row = src_buf + src_offset * bpp,
src_inten_row = src_inten_buf + src_offset /* valid iff use_inten */
;
mask_y < mask_y2
;
mask_y++,
src_row += width * bpp,
src_inten_row += width) /* valid iff use_inten */
{
guchar *src;
guchar *src_inten = NULL;
gint dy_squared = sqr_lut[ABS (mask_y - y)];
gint mask_x;
for (mask_x = mask_x1,
src = src_row,
src_inten = src_inten_row /* valid iff use_inten */
;
mask_x < mask_x2
;
mask_x++,
src += bpp,
src_inten++) /* valid iff use_inten */
{
gint dx_squared = sqr_lut[ABS (mask_x - x)];
gint b;
/* Stay inside a circular mask area */
if ((dx_squared + dy_squared) > radius_squared)
continue;
if (use_inten)
{
gint inten = *src_inten;
++Hist[inten];
for (b = 0; b < bpp; b++)
Hist_rgb[b][inten] += src[b];
}
else
{
for (b = 0; b < bpp; b++)
++Hist_rgb[b][src[b]];
}
} /* for mask_x */
} /* for mask_y */
if (use_inten)
{
weighted_average_color (Hist, Hist_rgb, exponent, dest, bpp);
}
else
{
gint b;
for (b = 0; b < bpp; b++)
dest[b] = weighted_average_value (Hist_rgb[b], exponent);
}
} /* for x */
} /* for y */
if (preview)
{
gimp_drawable_preview_draw_region (GIMP_DRAWABLE_PREVIEW (preview),
&dest_rgn);
}
else
{
progress += dest_rgn.w * dest_rgn.h;
gimp_progress_update ((gdouble) progress / (gdouble) max_progress);
}
} /* for pr */
/* Detach from the map drawables */
if (mask_size_map_drawable)
gimp_drawable_detach (mask_size_map_drawable);
if (exponent_map_drawable)
gimp_drawable_detach (exponent_map_drawable);
if (src_inten_buf)
g_free (src_inten_buf);
g_free (src_buf);
g_free (sqr_lut);
if (!preview)
{
gimp_progress_update (1.0);
/* Update the oil-painted region */
gimp_drawable_flush (drawable);
gimp_drawable_merge_shadow (drawable->drawable_id, TRUE);
gimp_drawable_update (drawable->drawable_id, x1, y1, width, height);
}
}
/*
* Return TRUE iff the specified drawable can be used as a mask-size /
* exponent map with the source image. The map and the image must have the
* same dimensions.
*/
static gboolean
oilify_map_constrain (gint32 image_id G_GNUC_UNUSED,
gint32 drawable_id,
gpointer data)
{
GimpDrawable *drawable = data;
return (gimp_drawable_width (drawable_id) == (gint) drawable->width &&
gimp_drawable_height (drawable_id) == (gint) drawable->height);
}
static gint
oilify_dialog (GimpDrawable *drawable)
{
GtkWidget *dialog;
GtkWidget *main_vbox;
GtkWidget *preview;
GtkWidget *table;
GtkWidget *toggle;
GtkWidget *combo;
GtkObject *adj;
gboolean can_use_mode_inten;
gboolean ret;
can_use_mode_inten = gimp_drawable_is_rgb (drawable->drawable_id);
if (! can_use_mode_inten && ovals.mode == MODE_INTEN)
ovals.mode = MODE_RGB;
gimp_ui_init (PLUG_IN_BINARY, FALSE);
dialog = gimp_dialog_new (_("Oilify"), 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));
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);
preview = gimp_drawable_preview_new (drawable, NULL);
gtk_box_pack_start (GTK_BOX (main_vbox), preview, TRUE, TRUE, 0);
gtk_widget_show (preview);
g_signal_connect_swapped (preview, "invalidated",
G_CALLBACK (oilify), drawable);
table = gtk_table_new (7, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_box_pack_start (GTK_BOX (main_vbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
/*
* Mask-size scale
*/
adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
_("_Mask size:"), SCALE_WIDTH, 0,
ovals.mask_size, 3.0, 50.0, 1.0, 5.0, 0,
TRUE, 0.0, 0.0,
NULL, NULL);
g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_double_adjustment_update),
&ovals.mask_size);
g_signal_connect_swapped (adj, "value-changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
/*
* Mask-size map check button
*/
toggle = gtk_check_button_new_with_mnemonic (_("Use m_ask-size map:"));
gtk_table_attach (GTK_TABLE (table), toggle, 0, 3, 1, 2, GTK_FILL, 0, 0, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
ovals.use_mask_size_map);
gtk_widget_show (toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&ovals.use_mask_size_map);
g_signal_connect_swapped (toggle, "toggled",
G_CALLBACK (gimp_preview_invalidate),
preview);
/*
* Mask-size map combo
*/
combo = gimp_drawable_combo_box_new (oilify_map_constrain, drawable);
gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo), ovals.mask_size_map,
G_CALLBACK (gimp_int_combo_box_get_active),
&ovals.mask_size_map);
g_signal_connect_swapped (combo, "changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
gtk_table_attach (GTK_TABLE (table), combo, 0, 3, 2, 3,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show (combo);
g_object_bind_property (toggle, "active",
combo, "sensitive",
G_BINDING_SYNC_CREATE);
/*
* Exponent scale
*/
adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 3,
_("_Exponent:"), SCALE_WIDTH, 0,
ovals.exponent, 1.0, 20.0, 1.0, 4.0, 0,
TRUE, 0.0, 0.0,
NULL, NULL);
g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_double_adjustment_update),
&ovals.exponent);
g_signal_connect_swapped (adj, "value-changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
/*
* Exponent map check button
*/
toggle = gtk_check_button_new_with_mnemonic (_("Use e_xponent map:"));
gtk_table_attach (GTK_TABLE (table), toggle, 0, 3, 4, 5, GTK_FILL, 0, 0, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
ovals.use_exponent_map);
gtk_widget_show (toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&ovals.use_exponent_map);
g_signal_connect_swapped (toggle, "toggled",
G_CALLBACK (gimp_preview_invalidate),
preview);
/*
* Exponent map combo
*/
combo = gimp_drawable_combo_box_new (oilify_map_constrain, drawable);
gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo), ovals.exponent_map,
G_CALLBACK (gimp_int_combo_box_get_active),
&ovals.exponent_map);
g_signal_connect_swapped (combo, "changed",
G_CALLBACK (gimp_preview_invalidate),
preview);
gtk_table_attach (GTK_TABLE (table), combo, 0, 3, 5, 6,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show (combo);
g_object_bind_property (toggle, "active",
combo, "sensitive",
G_BINDING_SYNC_CREATE);
/*
* Intensity algorithm check button
*/
toggle = gtk_check_button_new_with_mnemonic (_("_Use intensity algorithm"));
gtk_table_attach (GTK_TABLE (table), toggle, 0, 3, 6, 7, GTK_FILL, 0, 0, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), ovals.mode);
gtk_widget_set_sensitive (toggle, can_use_mode_inten);
gtk_widget_show (toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&ovals.mode);
g_signal_connect_swapped (toggle, "toggled",
G_CALLBACK (gimp_preview_invalidate),
preview);
gtk_widget_show (dialog);
ret = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
gtk_widget_destroy (dialog);
return ret;
}
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