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gimp/app/paint/gimppaintoptions.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995-1999 Spencer Kimball and Peter Mattis
*
* 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.
*/
#include "config.h"
#include <glib-object.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpconfig/gimpconfig.h"
#include "paint-types.h"
#include "core/gimp.h"
#include "core/gimpimage.h"
#include "core/gimpgradient.h"
#include "core/gimppaintinfo.h"
#include "gimppaintoptions.h"
#define DEFAULT_APPLICATION_MODE GIMP_PAINT_CONSTANT
#define DEFAULT_HARD FALSE
#define DEFAULT_PRESSURE_EXPANDED FALSE
#define DEFAULT_PRESSURE_OPACITY TRUE
#define DEFAULT_PRESSURE_HARDNESS FALSE
#define DEFAULT_PRESSURE_RATE FALSE
#define DEFAULT_PRESSURE_SIZE FALSE
#define DEFAULT_PRESSURE_INVERSE_SIZE FALSE
#define DEFAULT_PRESSURE_COLOR FALSE
#define DEFAULT_USE_FADE FALSE
#define DEFAULT_FADE_LENGTH 100.0
#define DEFAULT_FADE_UNIT GIMP_UNIT_PIXEL
#define DEFAULT_USE_JITTER FALSE
#define DEFAULT_JITTER_AMOUNT 0.2
#define DEFAULT_USE_GRADIENT FALSE
#define DEFAULT_GRADIENT_REVERSE FALSE
#define DEFAULT_GRADIENT_REPEAT GIMP_REPEAT_TRIANGULAR
#define DEFAULT_GRADIENT_LENGTH 100.0
#define DEFAULT_GRADIENT_UNIT GIMP_UNIT_PIXEL
enum
{
PROP_0,
PROP_PAINT_INFO,
PROP_APPLICATION_MODE,
PROP_HARD,
PROP_PRESSURE_EXPANDED,
PROP_PRESSURE_OPACITY,
PROP_PRESSURE_HARDNESS,
PROP_PRESSURE_RATE,
PROP_PRESSURE_SIZE,
PROP_PRESSURE_INVERSE_SIZE,
PROP_PRESSURE_COLOR,
PROP_USE_FADE,
PROP_FADE_LENGTH,
PROP_FADE_UNIT,
PROP_USE_GRADIENT,
PROP_GRADIENT_REVERSE,
PROP_GRADIENT_REPEAT,
PROP_GRADIENT_LENGTH,
PROP_GRADIENT_UNIT,
PROP_USE_JITTER,
PROP_JITTER_AMOUNT,
PROP_BRUSH_VIEW_TYPE,
PROP_BRUSH_VIEW_SIZE,
PROP_PATTERN_VIEW_TYPE,
PROP_PATTERN_VIEW_SIZE,
PROP_GRADIENT_VIEW_TYPE,
PROP_GRADIENT_VIEW_SIZE
};
static void gimp_paint_options_finalize (GObject *object);
static void gimp_paint_options_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_paint_options_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gimp_paint_options_notify (GObject *object,
GParamSpec *pspec);
G_DEFINE_TYPE (GimpPaintOptions, gimp_paint_options,
GIMP_TYPE_TOOL_OPTIONS)
#define parent_class gimp_paint_options_parent_class
static void
gimp_paint_options_class_init (GimpPaintOptionsClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gimp_paint_options_finalize;
object_class->set_property = gimp_paint_options_set_property;
object_class->get_property = gimp_paint_options_get_property;
object_class->notify = gimp_paint_options_notify;
g_object_class_install_property (object_class, PROP_PAINT_INFO,
g_param_spec_object ("paint-info",
NULL, NULL,
GIMP_TYPE_PAINT_INFO,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
GIMP_CONFIG_INSTALL_PROP_ENUM (object_class, PROP_APPLICATION_MODE,
"application-mode", NULL,
GIMP_TYPE_PAINT_APPLICATION_MODE,
DEFAULT_APPLICATION_MODE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_HARD,
"hard", NULL,
DEFAULT_HARD,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_PRESSURE_EXPANDED,
"pressure-expanded", NULL,
DEFAULT_PRESSURE_EXPANDED,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_PRESSURE_OPACITY,
"pressure-opacity", NULL,
DEFAULT_PRESSURE_OPACITY,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_PRESSURE_HARDNESS,
"pressure-hardness", NULL,
DEFAULT_PRESSURE_HARDNESS,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_PRESSURE_RATE,
"pressure-rate", NULL,
DEFAULT_PRESSURE_RATE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_PRESSURE_SIZE,
"pressure-size", NULL,
DEFAULT_PRESSURE_SIZE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_PRESSURE_COLOR,
"pressure-color", NULL,
DEFAULT_PRESSURE_COLOR,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_PRESSURE_INVERSE_SIZE,
"pressure-inverse-size", NULL,
DEFAULT_PRESSURE_INVERSE_SIZE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_USE_FADE,
"use-fade", NULL,
DEFAULT_USE_FADE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_DOUBLE (object_class, PROP_FADE_LENGTH,
"fade-length", NULL,
0.0, 32767.0, DEFAULT_FADE_LENGTH,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_UNIT (object_class, PROP_FADE_UNIT,
"fade-unit", NULL,
TRUE, TRUE, DEFAULT_FADE_UNIT,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_USE_JITTER,
"use-jitter", NULL,
DEFAULT_USE_JITTER,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_DOUBLE (object_class, PROP_JITTER_AMOUNT,
"jitter-amount", NULL,
0.0, 50.0, DEFAULT_JITTER_AMOUNT,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_USE_GRADIENT,
"use-gradient", NULL,
DEFAULT_USE_GRADIENT,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_GRADIENT_REVERSE,
"gradient-reverse", NULL,
DEFAULT_GRADIENT_REVERSE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_ENUM (object_class, PROP_GRADIENT_REPEAT,
"gradient-repeat", NULL,
GIMP_TYPE_REPEAT_MODE,
DEFAULT_GRADIENT_REPEAT,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_DOUBLE (object_class, PROP_GRADIENT_LENGTH,
"gradient-length", NULL,
0.0, 32767.0, DEFAULT_GRADIENT_LENGTH,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_UNIT (object_class, PROP_GRADIENT_UNIT,
"gradient-unit", NULL,
TRUE, TRUE, DEFAULT_GRADIENT_UNIT,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_ENUM (object_class, PROP_BRUSH_VIEW_TYPE,
"brush-view-type", NULL,
GIMP_TYPE_VIEW_TYPE,
GIMP_VIEW_TYPE_GRID,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_INT (object_class, PROP_BRUSH_VIEW_SIZE,
"brush-view-size", NULL,
GIMP_VIEW_SIZE_TINY,
GIMP_VIEWABLE_MAX_BUTTON_SIZE,
GIMP_VIEW_SIZE_SMALL,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_ENUM (object_class, PROP_PATTERN_VIEW_TYPE,
"pattern-view-type", NULL,
GIMP_TYPE_VIEW_TYPE,
GIMP_VIEW_TYPE_GRID,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_INT (object_class, PROP_PATTERN_VIEW_SIZE,
"pattern-view-size", NULL,
GIMP_VIEW_SIZE_TINY,
GIMP_VIEWABLE_MAX_BUTTON_SIZE,
GIMP_VIEW_SIZE_SMALL,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_ENUM (object_class, PROP_GRADIENT_VIEW_TYPE,
"gradient-view-type", NULL,
GIMP_TYPE_VIEW_TYPE,
GIMP_VIEW_TYPE_LIST,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_INT (object_class, PROP_GRADIENT_VIEW_SIZE,
"gradient-view-size", NULL,
GIMP_VIEW_SIZE_TINY,
GIMP_VIEWABLE_MAX_BUTTON_SIZE,
GIMP_VIEW_SIZE_LARGE,
GIMP_PARAM_STATIC_STRINGS);
}
static void
gimp_paint_options_init (GimpPaintOptions *options)
{
options->application_mode_save = DEFAULT_APPLICATION_MODE;
options->pressure_options = g_new0 (GimpPressureOptions, 1);
options->fade_options = g_new0 (GimpFadeOptions, 1);
options->gradient_options = g_new0 (GimpGradientOptions, 1);
options->jitter_options = g_new0 (GimpJitterOptions, 1);
}
static void
gimp_paint_options_finalize (GObject *object)
{
GimpPaintOptions *options = GIMP_PAINT_OPTIONS (object);
if (options->paint_info)
g_object_unref (options->paint_info);
g_free (options->pressure_options);
g_free (options->fade_options);
g_free (options->gradient_options);
g_free (options->jitter_options);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_paint_options_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpPaintOptions *options = GIMP_PAINT_OPTIONS (object);
GimpPressureOptions *pressure_options;
GimpFadeOptions *fade_options;
GimpGradientOptions *gradient_options;
GimpJitterOptions *jitter_options;
pressure_options = options->pressure_options;
fade_options = options->fade_options;
gradient_options = options->gradient_options;
jitter_options = options->jitter_options;
switch (property_id)
{
case PROP_PAINT_INFO:
options->paint_info = (GimpPaintInfo *) g_value_dup_object (value);
break;
case PROP_APPLICATION_MODE:
options->application_mode = g_value_get_enum (value);
break;
case PROP_HARD:
options->hard = g_value_get_boolean (value);
break;
case PROP_PRESSURE_EXPANDED:
pressure_options->expanded = g_value_get_boolean (value);
break;
case PROP_PRESSURE_OPACITY:
pressure_options->opacity = g_value_get_boolean (value);
break;
case PROP_PRESSURE_HARDNESS:
pressure_options->hardness = g_value_get_boolean (value);
break;
case PROP_PRESSURE_RATE:
pressure_options->rate = g_value_get_boolean (value);
break;
case PROP_PRESSURE_SIZE:
pressure_options->size = g_value_get_boolean (value);
break;
case PROP_PRESSURE_INVERSE_SIZE:
pressure_options->inverse_size = g_value_get_boolean (value);
break;
case PROP_PRESSURE_COLOR:
pressure_options->color = g_value_get_boolean (value);
break;
case PROP_USE_FADE:
fade_options->use_fade = g_value_get_boolean (value);
break;
case PROP_FADE_LENGTH:
fade_options->fade_length = g_value_get_double (value);
break;
case PROP_FADE_UNIT:
fade_options->fade_unit = g_value_get_int (value);
break;
case PROP_USE_JITTER:
jitter_options->use_jitter = g_value_get_boolean (value);
break;
case PROP_JITTER_AMOUNT:
jitter_options->jitter_amount = g_value_get_double (value);
break;
case PROP_USE_GRADIENT:
gradient_options->use_gradient = g_value_get_boolean (value);
break;
case PROP_GRADIENT_REVERSE:
gradient_options->gradient_reverse = g_value_get_boolean (value);
break;
case PROP_GRADIENT_REPEAT:
gradient_options->gradient_repeat = g_value_get_enum (value);
break;
case PROP_GRADIENT_LENGTH:
gradient_options->gradient_length = g_value_get_double (value);
break;
case PROP_GRADIENT_UNIT:
gradient_options->gradient_unit = g_value_get_int (value);
break;
case PROP_BRUSH_VIEW_TYPE:
options->brush_view_type = g_value_get_enum (value);
break;
case PROP_BRUSH_VIEW_SIZE:
options->brush_view_size = g_value_get_int (value);
break;
case PROP_PATTERN_VIEW_TYPE:
options->pattern_view_type = g_value_get_enum (value);
break;
case PROP_PATTERN_VIEW_SIZE:
options->pattern_view_size = g_value_get_int (value);
break;
case PROP_GRADIENT_VIEW_TYPE:
options->gradient_view_type = g_value_get_enum (value);
break;
case PROP_GRADIENT_VIEW_SIZE:
options->gradient_view_size = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_paint_options_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpPaintOptions *options = GIMP_PAINT_OPTIONS (object);
GimpPressureOptions *pressure_options;
GimpFadeOptions *fade_options;
GimpGradientOptions *gradient_options;
GimpJitterOptions *jitter_options;
pressure_options = options->pressure_options;
fade_options = options->fade_options;
gradient_options = options->gradient_options;
jitter_options = options->jitter_options;
switch (property_id)
{
case PROP_PAINT_INFO:
g_value_set_object (value, options->paint_info);
break;
case PROP_APPLICATION_MODE:
g_value_set_enum (value, options->application_mode);
break;
case PROP_HARD:
g_value_set_boolean (value, options->hard);
break;
case PROP_PRESSURE_EXPANDED:
g_value_set_boolean (value, pressure_options->expanded);
break;
case PROP_PRESSURE_OPACITY:
g_value_set_boolean (value, pressure_options->opacity);
break;
case PROP_PRESSURE_HARDNESS:
g_value_set_boolean (value, pressure_options->hardness);
break;
case PROP_PRESSURE_RATE:
g_value_set_boolean (value, pressure_options->rate);
break;
case PROP_PRESSURE_SIZE:
g_value_set_boolean (value, pressure_options->size);
break;
case PROP_PRESSURE_INVERSE_SIZE:
g_value_set_boolean (value, pressure_options->inverse_size);
break;
case PROP_PRESSURE_COLOR:
g_value_set_boolean (value, pressure_options->color);
break;
case PROP_USE_FADE:
g_value_set_boolean (value, fade_options->use_fade);
break;
case PROP_FADE_LENGTH:
g_value_set_double (value, fade_options->fade_length);
break;
case PROP_FADE_UNIT:
g_value_set_int (value, fade_options->fade_unit);
break;
case PROP_USE_JITTER:
g_value_set_boolean (value, jitter_options->use_jitter);
break;
case PROP_JITTER_AMOUNT:
g_value_set_double (value, jitter_options->jitter_amount);
break;
case PROP_USE_GRADIENT:
g_value_set_boolean (value, gradient_options->use_gradient);
break;
case PROP_GRADIENT_REVERSE:
g_value_set_boolean (value, gradient_options->gradient_reverse);
break;
case PROP_GRADIENT_REPEAT:
g_value_set_enum (value, gradient_options->gradient_repeat);
break;
case PROP_GRADIENT_LENGTH:
g_value_set_double (value, gradient_options->gradient_length);
break;
case PROP_GRADIENT_UNIT:
g_value_set_int (value, gradient_options->gradient_unit);
break;
case PROP_BRUSH_VIEW_TYPE:
g_value_set_enum (value, options->brush_view_type);
break;
case PROP_BRUSH_VIEW_SIZE:
g_value_set_int (value, options->brush_view_size);
break;
case PROP_PATTERN_VIEW_TYPE:
g_value_set_enum (value, options->pattern_view_type);
break;
case PROP_PATTERN_VIEW_SIZE:
g_value_set_int (value, options->pattern_view_size);
break;
case PROP_GRADIENT_VIEW_TYPE:
g_value_set_enum (value, options->gradient_view_type);
break;
case PROP_GRADIENT_VIEW_SIZE:
g_value_set_int (value, options->gradient_view_size);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_paint_options_notify (GObject *object,
GParamSpec *pspec)
{
GimpPaintOptions *options = GIMP_PAINT_OPTIONS (object);
if (pspec->param_id == PROP_USE_GRADIENT)
{
if (options->gradient_options->use_gradient)
{
options->application_mode_save = options->application_mode;
options->application_mode = GIMP_PAINT_INCREMENTAL;
}
else
{
options->application_mode = options->application_mode_save;
}
g_object_notify (object, "application-mode");
}
if (G_OBJECT_CLASS (parent_class)->notify)
G_OBJECT_CLASS (parent_class)->notify (object, pspec);
}
GimpPaintOptions *
gimp_paint_options_new (GimpPaintInfo *paint_info)
{
GimpPaintOptions *options;
g_return_val_if_fail (GIMP_IS_PAINT_INFO (paint_info), NULL);
options = g_object_new (paint_info->paint_options_type,
"gimp", paint_info->gimp,
"paint-info", paint_info,
NULL);
return options;
}
gdouble
gimp_paint_options_get_fade (GimpPaintOptions *paint_options,
GimpImage *image,
gdouble pixel_dist)
{
GimpFadeOptions *fade_options;
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options),
GIMP_OPACITY_OPAQUE);
g_return_val_if_fail (GIMP_IS_IMAGE (image), GIMP_OPACITY_OPAQUE);
fade_options = paint_options->fade_options;
if (fade_options->use_fade)
{
gdouble fade_out = 0.0;
gdouble unit_factor;
switch (fade_options->fade_unit)
{
case GIMP_UNIT_PIXEL:
fade_out = fade_options->fade_length;
break;
case GIMP_UNIT_PERCENT:
fade_out = (MAX (image->width, image->height) *
fade_options->fade_length / 100);
break;
default:
unit_factor = gimp_unit_get_factor (fade_options->fade_unit);
fade_out = (fade_options->fade_length *
MAX (image->xresolution,
image->yresolution) / unit_factor);
break;
}
/* factor in the fade out value */
if (fade_out > 0.0)
{
gdouble x;
/* Model the amount of paint left as a gaussian curve */
x = pixel_dist / fade_out;
return exp (- x * x * 5.541); /* ln (1/255) */
}
return GIMP_OPACITY_TRANSPARENT;
}
return GIMP_OPACITY_OPAQUE;
}
gdouble
gimp_paint_options_get_jitter (GimpPaintOptions *paint_options,
GimpImage *image)
{
GimpJitterOptions *jitter_options;
jitter_options = paint_options->jitter_options;
if (jitter_options->use_jitter)
return jitter_options->jitter_amount;
return 0.0;
}
gboolean
gimp_paint_options_get_gradient_color (GimpPaintOptions *paint_options,
GimpImage *image,
gdouble pressure,
gdouble pixel_dist,
GimpRGB *color)
{
GimpPressureOptions *pressure_options;
GimpGradientOptions *gradient_options;
GimpGradient *gradient;
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options), FALSE);
g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
g_return_val_if_fail (color != NULL, FALSE);
pressure_options = paint_options->pressure_options;
gradient_options = paint_options->gradient_options;
gradient = gimp_context_get_gradient (GIMP_CONTEXT (paint_options));
if (pressure_options->color)
{
gimp_gradient_get_color_at (gradient, GIMP_CONTEXT (paint_options),
NULL, pressure,
gradient_options->gradient_reverse,
color);
return TRUE;
}
else if (gradient_options->use_gradient)
{
gdouble gradient_length = 0.0;
gdouble unit_factor;
gdouble pos;
switch (gradient_options->gradient_unit)
{
case GIMP_UNIT_PIXEL:
gradient_length = gradient_options->gradient_length;
break;
case GIMP_UNIT_PERCENT:
gradient_length = (MAX (image->width, image->height) *
gradient_options->gradient_length / 100);
break;
default:
unit_factor = gimp_unit_get_factor (gradient_options->gradient_unit);
gradient_length = (gradient_options->gradient_length *
MAX (image->xresolution,
image->yresolution) / unit_factor);
break;
}
if (gradient_length > 0.0)
pos = pixel_dist / gradient_length;
else
pos = 1.0;
/* for no repeat, set pos close to 1.0 after the first chunk */
if (gradient_options->gradient_repeat == GIMP_REPEAT_NONE && pos >= 1.0)
pos = 0.9999999;
if (((gint) pos & 1) &&
gradient_options->gradient_repeat != GIMP_REPEAT_SAWTOOTH)
pos = 1.0 - (pos - (gint) pos);
else
pos = pos - (gint) pos;
gimp_gradient_get_color_at (gradient, GIMP_CONTEXT (paint_options),
NULL, pos,
gradient_options->gradient_reverse,
color);
return TRUE;
}
return FALSE;
}
GimpBrushApplicationMode
gimp_paint_options_get_brush_mode (GimpPaintOptions *paint_options)
{
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options), GIMP_BRUSH_SOFT);
if (paint_options->hard)
return GIMP_BRUSH_HARD;
if (paint_options->pressure_options->hardness)
return GIMP_BRUSH_PRESSURE;
return GIMP_BRUSH_SOFT;
}
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