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gimp/app/paint/gimppaintoptions.c

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/* GIMP - The GNU 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 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 <gegl.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpmath/gimpmath.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"
#include "gimp-intl.h"
#define DEFAULT_BRUSH_SCALE 1.0
#define DEFAULT_BRUSH_ASPECT_RATIO 1.0
#define DEFAULT_BRUSH_ANGLE 0.0
#define DEFAULT_APPLICATION_MODE GIMP_PAINT_CONSTANT
#define DEFAULT_HARD FALSE
#define DEFAULT_DYNAMICS_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_ASPECT_RATIO FALSE
#define DEFAULT_PRESSURE_COLOR FALSE
#define DEFAULT_PRESSURE_ANGLE FALSE
#define DEFAULT_PRESSURE_PRESCALE 1.0
#define DEFAULT_VELOCITY_OPACITY FALSE
#define DEFAULT_VELOCITY_HARDNESS FALSE
#define DEFAULT_VELOCITY_RATE FALSE
#define DEFAULT_VELOCITY_SIZE FALSE
#define DEFAULT_VELOCITY_INVERSE_SIZE FALSE
#define DEFAULT_VELOCITY_ASPECT_RATIO FALSE
#define DEFAULT_VELOCITY_COLOR FALSE
#define DEFAULT_VELOCITY_ANGLE FALSE
#define DEFAULT_VELOCITY_PRESCALE 1.0
#define DEFAULT_DIRECTION_OPACITY FALSE
#define DEFAULT_DIRECTION_HARDNESS FALSE
#define DEFAULT_DIRECTION_RATE FALSE
#define DEFAULT_DIRECTION_SIZE FALSE
#define DEFAULT_DIRECTION_INVERSE_SIZE FALSE
#define DEFAULT_DIRECTION_ASPECT_RATIO FALSE
#define DEFAULT_DIRECTION_COLOR FALSE
#define DEFAULT_DIRECTION_ANGLE FALSE
#define DEFAULT_DIRECTION_PRESCALE 1.0
#define DEFAULT_TILT_OPACITY FALSE
#define DEFAULT_TILT_HARDNESS FALSE
#define DEFAULT_TILT_RATE FALSE
#define DEFAULT_TILT_SIZE FALSE
#define DEFAULT_TILT_INVERSE_SIZE FALSE
#define DEFAULT_TILT_ASPECT_RATIO FALSE
#define DEFAULT_TILT_COLOR FALSE
#define DEFAULT_TILT_ANGLE FALSE
#define DEFAULT_TILT_PRESCALE 1.0
#define DEFAULT_RANDOM_OPACITY FALSE
#define DEFAULT_RANDOM_HARDNESS FALSE
#define DEFAULT_RANDOM_RATE FALSE
#define DEFAULT_RANDOM_SIZE FALSE
#define DEFAULT_RANDOM_INVERSE_SIZE FALSE
#define DEFAULT_RANDOM_ASPECT_RATIO FALSE
#define DEFAULT_RANDOM_COLOR FALSE
#define DEFAULT_RANDOM_ANGLE FALSE
#define DEFAULT_RANDOM_PRESCALE 1.0
#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_BRUSH_SCALE,
PROP_BRUSH_ASPECT_RATIO,
PROP_BRUSH_ANGLE,
PROP_APPLICATION_MODE,
PROP_HARD,
PROP_DYNAMICS_EXPANDED,
PROP_PRESSURE_OPACITY,
PROP_PRESSURE_HARDNESS,
PROP_PRESSURE_RATE,
PROP_PRESSURE_SIZE,
PROP_PRESSURE_INVERSE_SIZE,
PROP_PRESSURE_ASPECT_RATIO,
PROP_PRESSURE_COLOR,
PROP_PRESSURE_ANGLE,
PROP_PRESSURE_PRESCALE,
PROP_VELOCITY_OPACITY,
PROP_VELOCITY_HARDNESS,
PROP_VELOCITY_RATE,
PROP_VELOCITY_SIZE,
PROP_VELOCITY_INVERSE_SIZE,
PROP_VELOCITY_ASPECT_RATIO,
PROP_VELOCITY_COLOR,
PROP_VELOCITY_ANGLE,
PROP_VELOCITY_PRESCALE,
PROP_DIRECTION_OPACITY,
PROP_DIRECTION_HARDNESS,
PROP_DIRECTION_RATE,
PROP_DIRECTION_SIZE,
PROP_DIRECTION_INVERSE_SIZE,
PROP_DIRECTION_ASPECT_RATIO,
PROP_DIRECTION_COLOR,
PROP_DIRECTION_ANGLE,
PROP_DIRECTION_PRESCALE,
PROP_TILT_OPACITY,
PROP_TILT_HARDNESS,
PROP_TILT_RATE,
PROP_TILT_SIZE,
PROP_TILT_INVERSE_SIZE,
PROP_TILT_ASPECT_RATIO,
PROP_TILT_COLOR,
PROP_TILT_ANGLE,
PROP_TILT_PRESCALE,
PROP_RANDOM_OPACITY,
PROP_RANDOM_HARDNESS,
PROP_RANDOM_RATE,
PROP_RANDOM_SIZE,
PROP_RANDOM_INVERSE_SIZE,
PROP_RANDOM_ASPECT_RATIO,
PROP_RANDOM_COLOR,
PROP_RANDOM_ANGLE,
PROP_RANDOM_PRESCALE,
PROP_USE_FADE,
PROP_FADE_LENGTH,
PROP_FADE_UNIT,
PROP_USE_JITTER,
PROP_JITTER_AMOUNT,
PROP_USE_GRADIENT,
PROP_GRADIENT_REVERSE,
PROP_GRADIENT_REPEAT,
PROP_GRADIENT_LENGTH,
PROP_GRADIENT_UNIT,
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);
static gdouble gimp_paint_options_get_dynamics_mix (gdouble mix1,
gdouble mix1_scale,
gdouble mix2,
gdouble mix2_scale,
gdouble mix3,
gdouble mix3_scale,
gdouble mix4,
gdouble mix4_scale,
gdouble mix5,
gdouble mix5_scale);
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_DOUBLE (object_class, PROP_BRUSH_SCALE,
"brush-scale", _("Brush Scale"),
0.01, 10.0, DEFAULT_BRUSH_SCALE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_DOUBLE (object_class, PROP_BRUSH_ASPECT_RATIO,
"brush-aspect-ratio", _("Brush Aspect Ratio"),
0.01, 10.0, DEFAULT_BRUSH_ASPECT_RATIO,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_DOUBLE (object_class, PROP_BRUSH_ANGLE,
"brush-angle", _("Brush Angle"),
-180.0, 180.0, DEFAULT_BRUSH_ANGLE,
GIMP_PARAM_STATIC_STRINGS);
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_DYNAMICS_EXPANDED,
"dynamics-expanded", NULL,
DEFAULT_DYNAMICS_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_ANGLE,
"pressure-angle", 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_PRESSURE_ASPECT_RATIO,
"pressure-aspect-ratio", NULL,
DEFAULT_PRESSURE_ASPECT_RATIO,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_DOUBLE (object_class, PROP_PRESSURE_PRESCALE,
"pressure-prescale", NULL,
0.0, 1.0, DEFAULT_PRESSURE_PRESCALE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_VELOCITY_OPACITY,
"velocity-opacity", NULL,
DEFAULT_VELOCITY_OPACITY,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_VELOCITY_HARDNESS,
"velocity-hardness", NULL,
DEFAULT_VELOCITY_HARDNESS,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_VELOCITY_RATE,
"velocity-rate", NULL,
DEFAULT_VELOCITY_RATE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_VELOCITY_SIZE,
"velocity-size", NULL,
DEFAULT_VELOCITY_SIZE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_VELOCITY_COLOR,
"velocity-color", NULL,
DEFAULT_VELOCITY_COLOR,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_VELOCITY_ANGLE,
"velocity-angle", NULL,
DEFAULT_VELOCITY_COLOR,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_VELOCITY_INVERSE_SIZE,
"velocity-inverse-size", NULL,
DEFAULT_VELOCITY_INVERSE_SIZE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_VELOCITY_ASPECT_RATIO,
"velocity-aspect-ratio", NULL,
DEFAULT_VELOCITY_ASPECT_RATIO,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_DOUBLE (object_class, PROP_VELOCITY_PRESCALE,
"velocity-prescale", NULL,
0.0, 1.0, DEFAULT_VELOCITY_PRESCALE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_DIRECTION_OPACITY,
"direction-opacity", NULL,
DEFAULT_DIRECTION_OPACITY,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_DIRECTION_HARDNESS,
"direction-hardness", NULL,
DEFAULT_DIRECTION_HARDNESS,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_DIRECTION_RATE,
"direction-rate", NULL,
DEFAULT_DIRECTION_RATE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_DIRECTION_SIZE,
"direction-size", NULL,
DEFAULT_DIRECTION_SIZE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_DIRECTION_COLOR,
"direction-color", NULL,
DEFAULT_DIRECTION_COLOR,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_DIRECTION_ANGLE,
"direction-angle", NULL,
DEFAULT_DIRECTION_ANGLE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_DIRECTION_INVERSE_SIZE,
"direction-inverse-size", NULL,
DEFAULT_DIRECTION_INVERSE_SIZE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_DIRECTION_ASPECT_RATIO,
"direction-aspect-ratio", NULL,
DEFAULT_DIRECTION_ASPECT_RATIO,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_DOUBLE (object_class, PROP_DIRECTION_PRESCALE,
"direction-prescale", NULL,
0.0, 1.0, DEFAULT_DIRECTION_PRESCALE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_TILT_OPACITY,
"tilt-opacity", NULL,
DEFAULT_TILT_OPACITY,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_TILT_HARDNESS,
"tilt-hardness", NULL,
DEFAULT_TILT_HARDNESS,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_TILT_RATE,
"tilt-rate", NULL,
DEFAULT_TILT_RATE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_TILT_SIZE,
"tilt-size", NULL,
DEFAULT_TILT_SIZE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_TILT_COLOR,
"tilt-color", NULL,
DEFAULT_TILT_COLOR,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_TILT_ANGLE,
"tilt-angle", NULL,
DEFAULT_TILT_ANGLE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_TILT_INVERSE_SIZE,
"tilt-inverse-size", NULL,
DEFAULT_TILT_INVERSE_SIZE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_TILT_ASPECT_RATIO,
"tilt-aspect-ratio", NULL,
DEFAULT_TILT_ASPECT_RATIO,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_DOUBLE (object_class, PROP_TILT_PRESCALE,
"tilt-prescale", NULL,
0.0, 1.0, DEFAULT_TILT_PRESCALE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_RANDOM_OPACITY,
"random-opacity", NULL,
DEFAULT_RANDOM_OPACITY,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_RANDOM_HARDNESS,
"random-hardness", NULL,
DEFAULT_RANDOM_HARDNESS,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_RANDOM_RATE,
"random-rate", NULL,
DEFAULT_RANDOM_RATE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_RANDOM_SIZE,
"random-size", NULL,
DEFAULT_RANDOM_SIZE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_RANDOM_COLOR,
"random-color", NULL,
DEFAULT_RANDOM_COLOR,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_RANDOM_ANGLE,
"random-angle", NULL,
DEFAULT_RANDOM_ANGLE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_RANDOM_INVERSE_SIZE,
"random-inverse-size", NULL,
DEFAULT_RANDOM_INVERSE_SIZE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_DOUBLE (object_class, PROP_RANDOM_PRESCALE,
"random-prescale", NULL,
0.0, 1.0, DEFAULT_RANDOM_PRESCALE,
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_RANDOM_ASPECT_RATIO,
"random-aspect-ratio", NULL,
DEFAULT_RANDOM_ASPECT_RATIO,
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_slice_new0 (GimpDynamicOptions);
options->velocity_options = g_slice_new0 (GimpDynamicOptions);
options->direction_options = g_slice_new0 (GimpDynamicOptions);
options->tilt_options = g_slice_new0 (GimpDynamicOptions);
options->random_options = g_slice_new0 (GimpDynamicOptions);
options->fade_options = g_slice_new0 (GimpFadeOptions);
options->jitter_options = g_slice_new0 (GimpJitterOptions);
options->gradient_options = g_slice_new0 (GimpGradientOptions);
}
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_slice_free (GimpDynamicOptions, options->pressure_options);
g_slice_free (GimpDynamicOptions, options->velocity_options);
g_slice_free (GimpDynamicOptions, options->direction_options);
g_slice_free (GimpDynamicOptions, options->tilt_options);
g_slice_free (GimpDynamicOptions, options->random_options);
g_slice_free (GimpFadeOptions, options->fade_options);
g_slice_free (GimpJitterOptions, options->jitter_options);
g_slice_free (GimpGradientOptions, options->gradient_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);
GimpDynamicOptions *pressure_options = options->pressure_options;
GimpDynamicOptions *velocity_options = options->velocity_options;
GimpDynamicOptions *direction_options = options->direction_options;
GimpDynamicOptions *tilt_options = options->tilt_options;
GimpDynamicOptions *random_options = options->random_options;
GimpFadeOptions *fade_options = options->fade_options;
GimpJitterOptions *jitter_options = options->jitter_options;
GimpGradientOptions *gradient_options = options->gradient_options;
switch (property_id)
{
case PROP_PAINT_INFO:
options->paint_info = g_value_dup_object (value);
break;
case PROP_BRUSH_SCALE:
options->brush_scale = g_value_get_double (value);
break;
case PROP_BRUSH_ASPECT_RATIO:
options->brush_aspect_ratio = g_value_get_double (value);
break;
case PROP_BRUSH_ANGLE:
options->brush_angle = - 1.0 * g_value_get_double (value) / 360.0; /* let's make the angle mathematically correct */
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_DYNAMICS_EXPANDED:
options->dynamics_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_ASPECT_RATIO:
pressure_options->aspect_ratio = g_value_get_boolean (value);
break;
case PROP_PRESSURE_COLOR:
pressure_options->color = g_value_get_boolean (value);
break;
case PROP_PRESSURE_ANGLE:
pressure_options->angle = g_value_get_boolean (value);
break;
case PROP_PRESSURE_PRESCALE:
pressure_options->prescale = g_value_get_double (value);
break;
case PROP_VELOCITY_OPACITY:
velocity_options->opacity = g_value_get_boolean (value);
break;
case PROP_VELOCITY_HARDNESS:
velocity_options->hardness = g_value_get_boolean (value);
break;
case PROP_VELOCITY_RATE:
velocity_options->rate = g_value_get_boolean (value);
break;
case PROP_VELOCITY_SIZE:
velocity_options->size = g_value_get_boolean (value);
break;
case PROP_VELOCITY_INVERSE_SIZE:
velocity_options->inverse_size = g_value_get_boolean (value);
break;
case PROP_VELOCITY_ASPECT_RATIO:
velocity_options->aspect_ratio = g_value_get_boolean (value);
break;
case PROP_VELOCITY_COLOR:
velocity_options->color = g_value_get_boolean (value);
break;
case PROP_VELOCITY_ANGLE:
velocity_options->angle = g_value_get_boolean (value);
break;
case PROP_VELOCITY_PRESCALE:
velocity_options->prescale = g_value_get_double (value);
break;
case PROP_DIRECTION_OPACITY:
direction_options->opacity = g_value_get_boolean (value);
break;
case PROP_DIRECTION_HARDNESS:
direction_options->hardness = g_value_get_boolean (value);
break;
case PROP_DIRECTION_RATE:
direction_options->rate = g_value_get_boolean (value);
break;
case PROP_DIRECTION_SIZE:
direction_options->size = g_value_get_boolean (value);
break;
case PROP_DIRECTION_INVERSE_SIZE:
direction_options->inverse_size = g_value_get_boolean (value);
break;
case PROP_DIRECTION_ASPECT_RATIO:
direction_options->aspect_ratio = g_value_get_boolean (value);
break;
case PROP_DIRECTION_COLOR:
direction_options->color = g_value_get_boolean (value);
break;
case PROP_DIRECTION_ANGLE:
direction_options->angle = g_value_get_boolean (value);
break;
case PROP_DIRECTION_PRESCALE:
direction_options->prescale = g_value_get_double (value);
break;
case PROP_TILT_OPACITY:
tilt_options->opacity = g_value_get_boolean (value);
break;
case PROP_TILT_HARDNESS:
tilt_options->hardness = g_value_get_boolean (value);
break;
case PROP_TILT_RATE:
tilt_options->rate = g_value_get_boolean (value);
break;
case PROP_TILT_SIZE:
tilt_options->size = g_value_get_boolean (value);
break;
case PROP_TILT_INVERSE_SIZE:
tilt_options->inverse_size = g_value_get_boolean (value);
break;
case PROP_TILT_ASPECT_RATIO:
tilt_options->aspect_ratio = g_value_get_boolean (value);
break;
case PROP_TILT_COLOR:
tilt_options->color = g_value_get_boolean (value);
break;
case PROP_TILT_ANGLE:
tilt_options->angle = g_value_get_boolean (value);
break;
case PROP_TILT_PRESCALE:
tilt_options->prescale = g_value_get_double (value);
break;
case PROP_RANDOM_OPACITY:
random_options->opacity = g_value_get_boolean (value);
break;
case PROP_RANDOM_HARDNESS:
random_options->hardness = g_value_get_boolean (value);
break;
case PROP_RANDOM_RATE:
random_options->rate = g_value_get_boolean (value);
break;
case PROP_RANDOM_SIZE:
random_options->size = g_value_get_boolean (value);
break;
case PROP_RANDOM_INVERSE_SIZE:
random_options->inverse_size = g_value_get_boolean (value);
break;
case PROP_RANDOM_ASPECT_RATIO:
random_options->aspect_ratio = g_value_get_boolean (value);
break;
case PROP_RANDOM_COLOR:
random_options->color = g_value_get_boolean (value);
break;
case PROP_RANDOM_ANGLE:
random_options->angle = g_value_get_boolean (value);
break;
case PROP_RANDOM_PRESCALE:
random_options->prescale = g_value_get_double (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);
GimpDynamicOptions *pressure_options = options->pressure_options;
GimpDynamicOptions *velocity_options = options->velocity_options;
GimpDynamicOptions *direction_options = options->direction_options;
GimpDynamicOptions *tilt_options = options->tilt_options;
GimpDynamicOptions *random_options = options->random_options;
GimpFadeOptions *fade_options = options->fade_options;
GimpJitterOptions *jitter_options = options->jitter_options;
GimpGradientOptions *gradient_options = options->gradient_options;
switch (property_id)
{
case PROP_PAINT_INFO:
g_value_set_object (value, options->paint_info);
break;
case PROP_BRUSH_SCALE:
g_value_set_double (value, options->brush_scale);
break;
case PROP_BRUSH_ASPECT_RATIO:
g_value_set_double (value, options->brush_aspect_ratio);
break;
case PROP_BRUSH_ANGLE:
g_value_set_double (value, - 1.0 * options->brush_angle * 360.0); /* mathematically correct -> intuitively correct */
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_DYNAMICS_EXPANDED:
g_value_set_boolean (value, options->dynamics_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_ASPECT_RATIO:
g_value_set_boolean (value, pressure_options->aspect_ratio);
break;
case PROP_PRESSURE_COLOR:
g_value_set_boolean (value, pressure_options->color);
break;
case PROP_PRESSURE_ANGLE:
g_value_set_boolean (value, pressure_options->angle);
break;
case PROP_PRESSURE_PRESCALE:
g_value_set_double (value, pressure_options->prescale);
break;
case PROP_VELOCITY_OPACITY:
g_value_set_boolean (value, velocity_options->opacity);
break;
case PROP_VELOCITY_HARDNESS:
g_value_set_boolean (value, velocity_options->hardness);
break;
case PROP_VELOCITY_RATE:
g_value_set_boolean (value, velocity_options->rate);
break;
case PROP_VELOCITY_SIZE:
g_value_set_boolean (value, velocity_options->size);
break;
case PROP_VELOCITY_INVERSE_SIZE:
g_value_set_boolean (value, velocity_options->inverse_size);
break;
case PROP_VELOCITY_ASPECT_RATIO:
g_value_set_boolean (value, velocity_options->aspect_ratio);
break;
case PROP_VELOCITY_COLOR:
g_value_set_boolean (value, velocity_options->color);
break;
case PROP_VELOCITY_ANGLE:
g_value_set_boolean (value, velocity_options->angle);
break;
case PROP_VELOCITY_PRESCALE:
g_value_set_double (value, velocity_options->prescale);
break;
case PROP_DIRECTION_OPACITY:
g_value_set_boolean (value, direction_options->opacity);
break;
case PROP_DIRECTION_HARDNESS:
g_value_set_boolean (value, direction_options->hardness);
break;
case PROP_DIRECTION_RATE:
g_value_set_boolean (value, direction_options->rate);
break;
case PROP_DIRECTION_SIZE:
g_value_set_boolean (value, direction_options->size);
break;
case PROP_DIRECTION_INVERSE_SIZE:
g_value_set_boolean (value, direction_options->inverse_size);
break;
case PROP_DIRECTION_ASPECT_RATIO:
g_value_set_boolean (value, direction_options->aspect_ratio);
break;
case PROP_DIRECTION_COLOR:
g_value_set_boolean (value, direction_options->color);
break;
case PROP_DIRECTION_ANGLE:
g_value_set_boolean (value, direction_options->angle);
break;
case PROP_DIRECTION_PRESCALE:
g_value_set_double (value, direction_options->prescale);
break;
case PROP_TILT_OPACITY:
g_value_set_boolean (value, tilt_options->opacity);
break;
case PROP_TILT_HARDNESS:
g_value_set_boolean (value, tilt_options->hardness);
break;
case PROP_TILT_RATE:
g_value_set_boolean (value, tilt_options->rate);
break;
case PROP_TILT_SIZE:
g_value_set_boolean (value, tilt_options->size);
break;
case PROP_TILT_INVERSE_SIZE:
g_value_set_boolean (value, tilt_options->inverse_size);
break;
case PROP_TILT_ASPECT_RATIO:
g_value_set_boolean (value, tilt_options->aspect_ratio);
break;
case PROP_TILT_COLOR:
g_value_set_boolean (value, tilt_options->color);
break;
case PROP_TILT_ANGLE:
g_value_set_boolean (value, tilt_options->angle);
break;
case PROP_TILT_PRESCALE:
g_value_set_double (value, tilt_options->prescale);
break;
case PROP_RANDOM_OPACITY:
g_value_set_boolean (value, random_options->opacity);
break;
case PROP_RANDOM_HARDNESS:
g_value_set_boolean (value, random_options->hardness);
break;
case PROP_RANDOM_RATE:
g_value_set_boolean (value, random_options->rate);
break;
case PROP_RANDOM_SIZE:
g_value_set_boolean (value, random_options->size);
break;
case PROP_RANDOM_INVERSE_SIZE:
g_value_set_boolean (value, random_options->inverse_size);
break;
case PROP_RANDOM_ASPECT_RATIO:
g_value_set_boolean (value, random_options->aspect_ratio);
break;
case PROP_RANDOM_COLOR:
g_value_set_boolean (value, random_options->color);
break;
case PROP_RANDOM_ANGLE:
g_value_set_boolean (value, random_options->angle);
break;
case PROP_RANDOM_PRESCALE:
g_value_set_double (value, random_options->prescale);
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,
"name", gimp_object_get_name (paint_info),
"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 (gimp_image_get_width (image),
gimp_image_get_height (image)) *
fade_options->fade_length / 100);
break;
default:
{
gdouble xres;
gdouble yres;
gimp_image_get_resolution (image, &xres, &yres);
unit_factor = gimp_unit_get_factor (fade_options->fade_unit);
fade_out = (fade_options->fade_length *
MAX (xres, yres) / 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;
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options), 0.0);
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 grad_point,
gdouble pixel_dist,
GimpRGB *color)
{
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);
gradient_options = paint_options->gradient_options;
gradient = gimp_context_get_gradient (GIMP_CONTEXT (paint_options));
if (paint_options->pressure_options->color ||
paint_options->velocity_options->color ||
paint_options->direction_options->color ||
paint_options->tilt_options->color ||
paint_options->random_options->color)
{
gimp_gradient_get_color_at (gradient, GIMP_CONTEXT (paint_options),
NULL, grad_point,
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 (gimp_image_get_width (image),
gimp_image_get_height (image)) *
gradient_options->gradient_length / 100);
break;
default:
{
gdouble xres;
gdouble yres;
gimp_image_get_resolution (image, &xres, &yres);
unit_factor = gimp_unit_get_factor (gradient_options->gradient_unit);
gradient_length = (gradient_options->gradient_length *
MAX (xres, yres) / 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 ||
paint_options->velocity_options->hardness ||
paint_options->random_options->hardness)
return GIMP_BRUSH_PRESSURE;
return GIMP_BRUSH_SOFT;
}
/* Calculates dynamics mix to be used for same parameter
* (velocity/pressure/direction/tilt/random) mix Needed in may places and tools.
*/
static gdouble
gimp_paint_options_get_dynamics_mix (gdouble mix1,
gdouble mix1_scale,
gdouble mix2,
gdouble mix2_scale,
gdouble mix3,
gdouble mix3_scale,
gdouble mix4,
gdouble mix4_scale,
gdouble mix5,
gdouble mix5_scale)
{
gdouble scale_sum = 0.0;
gdouble result = 1.0;
if (mix1 > -1.0)
{
scale_sum += fabs (mix1_scale);
}
else mix1 = 0.0;
if (mix2 > -1.0)
{
scale_sum += fabs (mix2_scale);
}
else mix2 = 0.0;
if (mix3 > -1.0)
{
scale_sum += fabs (mix3_scale);
}
else mix3 = 0.0;
if (mix4 > -1.0)
{
scale_sum += fabs (mix4_scale);
}
else mix4 = 0.0;
if (mix5 > -1.0)
{
scale_sum += fabs (mix5_scale);
}
else mix5 = 0.0;
if (scale_sum > 0.0)
{
result = (mix1 * mix1_scale) / scale_sum +
(mix2 * mix2_scale) / scale_sum +
(mix3 * mix3_scale) / scale_sum +
(mix4 * mix4_scale) / scale_sum +
(mix5 * mix5_scale) / scale_sum;
}
if (result < 0.0)
result = 1.0 + result;
return MAX (0.0, result);
}
gdouble
gimp_paint_options_get_dynamic_opacity (GimpPaintOptions *paint_options,
const GimpCoords *coords)
{
gdouble opacity = 1.0;
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options), 1.0);
g_return_val_if_fail (coords != NULL, 1.0);
if (paint_options->pressure_options->opacity ||
paint_options->velocity_options->opacity ||
paint_options->direction_options->opacity ||
paint_options->tilt_options->opacity ||
paint_options->random_options->opacity)
{
gdouble pressure = -1.0;
gdouble velocity = -1.0;
gdouble direction = -1.0;
gdouble tilt = -1.0;
gdouble random = -1.0;
if (paint_options->pressure_options->opacity)
pressure = GIMP_PAINT_PRESSURE_SCALE * coords->pressure;
if (paint_options->velocity_options->opacity)
velocity = GIMP_PAINT_VELOCITY_SCALE * (1 - coords->velocity);
if (paint_options->random_options->opacity)
random = g_random_double_range (0.0, 1.0);
if (paint_options->tilt_options->opacity)
tilt = 1.0 - sqrt (SQR (coords->xtilt) + SQR (coords->ytilt));
if (paint_options->direction_options->opacity)
direction = coords->direction + 0.5; /* mixer does not mix negative angles right so we shift */
opacity = gimp_paint_options_get_dynamics_mix (pressure,
paint_options->pressure_options->prescale,
velocity,
paint_options->velocity_options->prescale,
random,
paint_options->random_options->prescale,
tilt,
paint_options->tilt_options->prescale,
direction,
paint_options->direction_options->prescale);
}
return opacity;
}
gdouble
gimp_paint_options_get_dynamic_size (GimpPaintOptions *paint_options,
const GimpCoords *coords,
gboolean use_dynamics)
{
gdouble scale = 1.0;
if (use_dynamics)
{
gdouble pressure = -1.0;
gdouble velocity = -1.0;
gdouble direction = -1.0;
gdouble random = -1.0;
gdouble tilt = -1.0;
if (paint_options->pressure_options->size)
{
pressure = coords->pressure;
}
else if (paint_options->pressure_options->inverse_size)
{
pressure = 1.0 - 0.9 * coords->pressure;
}
if (paint_options->velocity_options->size)
{
velocity = 1.0 - sqrt (coords->velocity);
}
else if (paint_options->velocity_options->inverse_size)
{
velocity = sqrt (coords->velocity);
}
if (paint_options->random_options->size)
{
random = 1.0 - g_random_double_range (0.0, 1.0);
}
else if (paint_options->random_options->inverse_size)
{
random = g_random_double_range (0.0, 1.0);
}
if (paint_options->tilt_options->size)
{
tilt = 1.0 - sqrt (SQR (coords->xtilt) + SQR (coords->ytilt));
}
else if (paint_options->tilt_options->inverse_size)
{
tilt = sqrt (SQR (coords->xtilt) + SQR (coords->ytilt));
}
if (paint_options->direction_options->size)
direction = coords->direction + 0.5; /* mixer does not mix negative angles right so we shift */
scale = gimp_paint_options_get_dynamics_mix (pressure,
paint_options->pressure_options->prescale,
velocity,
paint_options->velocity_options->prescale,
random,
paint_options->random_options->prescale,
tilt,
paint_options->tilt_options->prescale,
direction,
paint_options->direction_options->prescale);
if (scale < 1 / 64.0)
scale = 1 / 8.0;
else
scale = sqrt (scale);
}
scale *= paint_options->brush_scale;
return scale;
}
gdouble
gimp_paint_options_get_dynamic_aspect_ratio (GimpPaintOptions *paint_options,
const GimpCoords *coords)
{
gdouble aspect_ratio = 1.0;
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options), 1.0);
g_return_val_if_fail (coords != NULL, 1.0);
if (paint_options->pressure_options->aspect_ratio ||
paint_options->velocity_options->aspect_ratio ||
paint_options->direction_options->aspect_ratio ||
paint_options->tilt_options->aspect_ratio ||
paint_options->random_options->aspect_ratio)
{
gdouble pressure = -1.0;
gdouble velocity = -1.0;
gdouble direction = -1.0;
gdouble tilt = -1.0;
gdouble random = -1.0;
if (paint_options->pressure_options->aspect_ratio)
pressure = 2 * coords->pressure;
if (paint_options->velocity_options->aspect_ratio)
velocity = 2 * coords->velocity;
if (paint_options->random_options->aspect_ratio)
{
random = g_random_double_range (0.0, 1.0);
if (random <= 0.5)
{
random = 1 / (random / 0.5 * (2.0 - 1.0) + 1.0);
}
else
{
random = (random - 0.5) / (1.0 - 0.5) * (2.0 - 1.0) + 1.0;
}
}
if (paint_options->tilt_options->aspect_ratio)
{
tilt = sqrt ((1 - fabs (coords->xtilt)) / (1 - fabs (coords->ytilt)));
}
if (paint_options->direction_options->aspect_ratio)
{
direction = fmod (1 + coords->direction, 0.5) / 0.25;
if ((coords->direction > 0.0) && (coords->direction < 0.5))
direction = 1 / direction;
}
aspect_ratio = gimp_paint_options_get_dynamics_mix (pressure,
paint_options->pressure_options->prescale,
velocity,
paint_options->velocity_options->prescale,
random,
paint_options->random_options->prescale,
tilt,
paint_options->tilt_options->prescale,
direction,
paint_options->direction_options->prescale);
}
return paint_options->brush_aspect_ratio * aspect_ratio;
}
gdouble
gimp_paint_options_get_dynamic_rate (GimpPaintOptions *paint_options,
const GimpCoords *coords)
{
gdouble rate = 1.0;
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options), 1.0);
g_return_val_if_fail (coords != NULL, 1.0);
if (paint_options->pressure_options->rate ||
paint_options->velocity_options->rate ||
paint_options->direction_options->rate ||
paint_options->tilt_options->rate ||
paint_options->random_options->rate)
{
gdouble pressure = -1.0;
gdouble velocity = -1.0;
gdouble direction = -1.0;
gdouble random = -1.0;
gdouble tilt = -1.0;
if (paint_options->pressure_options->rate)
pressure = GIMP_PAINT_PRESSURE_SCALE * coords->pressure;
if (paint_options->velocity_options->rate)
velocity = GIMP_PAINT_VELOCITY_SCALE * (1 - coords->velocity);
if (paint_options->random_options->rate)
random = g_random_double_range (0.0, 1.0);
if (paint_options->tilt_options->rate)
tilt = 1.0 - sqrt (SQR (coords->xtilt) + SQR (coords->ytilt));
if (paint_options->direction_options->rate)
direction = coords->direction + 0.5; /* mixer does not mix negative angles right so we shift */
rate = gimp_paint_options_get_dynamics_mix (pressure,
paint_options->pressure_options->prescale,
velocity,
paint_options->velocity_options->prescale,
random,
paint_options->random_options->prescale,
tilt,
paint_options->tilt_options->prescale,
direction,
paint_options->direction_options->prescale);
}
return rate;
}
gdouble
gimp_paint_options_get_dynamic_color (GimpPaintOptions *paint_options,
const GimpCoords *coords)
{
gdouble color = 1.0;
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options), 1.0);
g_return_val_if_fail (coords != NULL, 1.0);
if (paint_options->pressure_options->color ||
paint_options->velocity_options->color ||
paint_options->direction_options->color ||
paint_options->tilt_options->color ||
paint_options->random_options->color)
{
gdouble pressure = -1.0;
gdouble velocity = -1.0;
gdouble direction = -1.0;
gdouble random = -1.0;
gdouble tilt = -1.0;
if (paint_options->pressure_options->color)
pressure = GIMP_PAINT_PRESSURE_SCALE * coords->pressure;
if (paint_options->velocity_options->color)
velocity = GIMP_PAINT_VELOCITY_SCALE * coords->velocity;
if (paint_options->random_options->color)
random = g_random_double_range (0.0, 1.0);
if (paint_options->tilt_options->color)
tilt = 1.0 - sqrt (SQR (coords->xtilt) + SQR (coords->ytilt));
if (paint_options->direction_options->color)
direction = coords->direction + 0.5; /* mixer does not mix negative angles right so we shift */
color = gimp_paint_options_get_dynamics_mix (pressure,
paint_options->pressure_options->prescale,
velocity,
paint_options->velocity_options->prescale,
random,
paint_options->random_options->prescale,
tilt,
paint_options->tilt_options->prescale,
direction,
paint_options->direction_options->prescale);
}
return color;
}
gdouble
gimp_paint_options_get_dynamic_hardness (GimpPaintOptions *paint_options,
const GimpCoords *coords)
{
gdouble hardness = 1.0;
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options), 1.0);
g_return_val_if_fail (coords != NULL, 1.0);
if (paint_options->pressure_options->hardness ||
paint_options->velocity_options->hardness ||
paint_options->direction_options->hardness ||
paint_options->tilt_options->hardness ||
paint_options->random_options->hardness)
{
gdouble pressure = -1.0;
gdouble velocity = -1.0;
gdouble direction = -1.0;
gdouble random = -1.0;
gdouble tilt = -1.0;
if (paint_options->pressure_options->hardness)
pressure = GIMP_PAINT_PRESSURE_SCALE * coords->pressure;
if (paint_options->velocity_options->hardness)
velocity = GIMP_PAINT_VELOCITY_SCALE * (1 - coords->velocity);
if (paint_options->random_options->hardness)
random = g_random_double_range (0.0, 1.0);
if (paint_options->tilt_options->hardness)
tilt = 1.0 - sqrt (SQR (coords->xtilt) + SQR (coords->ytilt));
if (paint_options->direction_options->hardness)
direction = coords->direction + 0.5; /* mixer does not mix negative angles right so we shift */
hardness = gimp_paint_options_get_dynamics_mix (pressure,
paint_options->pressure_options->prescale,
velocity,
paint_options->velocity_options->prescale,
random,
paint_options->random_options->prescale,
tilt,
paint_options->tilt_options->prescale,
direction,
paint_options->direction_options->prescale);
}
return hardness;
}
gdouble
gimp_paint_options_get_dynamic_angle (GimpPaintOptions *paint_options,
const GimpCoords *coords)
{
gdouble angle = 1.0;
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options), 1.0);
g_return_val_if_fail (coords != NULL, 1.0);
if (paint_options->pressure_options->angle ||
paint_options->velocity_options->angle ||
paint_options->direction_options->angle ||
paint_options->tilt_options->angle ||
paint_options->random_options->angle)
{
gdouble pressure = -1.0;
gdouble velocity = -1.0;
gdouble direction = -1.0;
gdouble random = -1.0;
gdouble tilt = -1.0;
if (paint_options->pressure_options->angle)
pressure = GIMP_PAINT_PRESSURE_SCALE * coords->pressure;
if (paint_options->velocity_options->angle)
velocity = GIMP_PAINT_VELOCITY_SCALE * (1 - coords->velocity);
if (paint_options->random_options->angle)
random = g_random_double_range (0.0, 1.0);
/* For tilt to make sense, it needs to be converted to an angle, not just vector */
if (paint_options->tilt_options->angle)
{
gdouble tilt_x = coords->xtilt;
gdouble tilt_y = coords->ytilt;
if (tilt_x == 0.0)
{
if (tilt_y >= 0.0)
tilt = 0.5;
else if (tilt_y < 0.0)
tilt = 0.0;
else tilt = -1.0;
}
else
{
tilt = atan ((- 1.0 * tilt_y) /
tilt_x) / (2 * G_PI);
if (tilt_x > 0.0)
tilt = tilt + 0.5;
}
tilt = tilt + 0.5; /* correct the angle, its wrong by 180 degrees */
while (tilt > 1.0)
tilt -= 1.0;
while (tilt < 0.0)
tilt += 1.0;
}
if (paint_options->direction_options->angle)
direction = coords->direction + 0.5; /* mixer does not mix negative angles right so we shift */
angle = gimp_paint_options_get_dynamics_mix (pressure,
paint_options->pressure_options->prescale,
velocity,
paint_options->velocity_options->prescale,
random,
paint_options->random_options->prescale,
tilt,
paint_options->tilt_options->prescale,
direction,
paint_options->direction_options->prescale);
angle = angle - 0.5;
}
return angle + paint_options->brush_angle;
}
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