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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/gimpdynamics.h"
#include "core/gimpdynamicsoutput.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_USE_FADE FALSE
#define DEFAULT_FADE_LENGTH 100.0
#define DEFAULT_FADE_REVERSE FALSE
#define DEFAULT_FADE_REPEAT GIMP_REPEAT_NONE
#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
#define DYNAMIC_MAX_VALUE 1.0
#define DYNAMIC_MIN_VALUE 0.0
enum
{
PROP_0,
PROP_PAINT_INFO,
PROP_BRUSH_SCALE,
PROP_BRUSH_ASPECT_RATIO,
PROP_BRUSH_ANGLE,
PROP_APPLICATION_MODE,
PROP_HARD,
PROP_USE_FADE,
PROP_FADE_LENGTH,
PROP_FADE_REVERSE,
PROP_FADE_REPEAT,
PROP_FADE_UNIT,
PROP_USE_JITTER,
PROP_JITTER_AMOUNT,
PROP_USE_GRADIENT,
PROP_GRADIENT_REVERSE,
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_dispose (GObject *object);
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->dispose = gimp_paint_options_dispose;
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_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_FADE_REVERSE,
"fade-reverse", NULL,
DEFAULT_FADE_REVERSE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_ENUM (object_class, PROP_FADE_REPEAT,
"fade-repeat", NULL,
GIMP_TYPE_REPEAT_MODE,
DEFAULT_FADE_REPEAT,
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_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->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_dispose (GObject *object)
{
GimpPaintOptions *options = GIMP_PAINT_OPTIONS (object);
if (options->paint_info)
{
g_object_unref (options->paint_info);
options->paint_info = NULL;
}
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gimp_paint_options_finalize (GObject *object)
{
GimpPaintOptions *options = GIMP_PAINT_OPTIONS (object);
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);
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_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_REVERSE:
fade_options->fade_reverse = g_value_get_boolean (value);
break;
case PROP_FADE_REPEAT:
fade_options->fade_repeat = g_value_get_enum (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_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);
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_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_REVERSE:
g_value_set_boolean (value, fade_options->fade_reverse);
break;
case PROP_FADE_REPEAT:
g_value_set_enum (value, fade_options->fade_repeat);
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_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;
gdouble z = -1.0;
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options),
DYNAMIC_MAX_VALUE);
g_return_val_if_fail (GIMP_IS_IMAGE (image), DYNAMIC_MAX_VALUE);
fade_options = paint_options->fade_options;
if (fade_options->use_fade)
{
gdouble fade_out = 0.0;
gdouble unit_factor;
gdouble pos;
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)
{
pos = pixel_dist / fade_out;
}
else
pos = DYNAMIC_MAX_VALUE;
/* for no repeat, set pos close to 1.0 after the first chunk */
if (fade_options->fade_repeat == GIMP_REPEAT_NONE && pos >= DYNAMIC_MAX_VALUE)
pos = DYNAMIC_MAX_VALUE - 0.0000001;
if (((gint) pos & 1) &&
fade_options->fade_repeat != GIMP_REPEAT_SAWTOOTH)
pos = DYNAMIC_MAX_VALUE - (pos - (gint) pos);
else
pos = pos - (gint) pos;
z = pos;
if (fade_options->fade_reverse)
z = 1.0 - z;
return z; /* ln (1/255) */
}
return DYNAMIC_MIN_VALUE;
}
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;
GimpDynamics *dynamics;
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));
dynamics = gimp_context_get_dynamics (GIMP_CONTEXT (paint_options));
if (gimp_dynamics_output_is_enabled(dynamics->color_output) && gradient_options->use_gradient)
{
gimp_gradient_get_color_at (gradient, GIMP_CONTEXT (paint_options),
NULL, grad_point,
gradient_options->gradient_reverse,
color);
return TRUE;
}
return FALSE;
}
GimpBrushApplicationMode
gimp_paint_options_get_brush_mode (GimpPaintOptions *paint_options)
{
GimpDynamics *dynamics;
g_return_val_if_fail (GIMP_IS_PAINT_OPTIONS (paint_options), GIMP_BRUSH_SOFT);
if (paint_options->hard)
return GIMP_BRUSH_HARD;
dynamics = gimp_context_get_dynamics (GIMP_CONTEXT (paint_options));
if (gimp_dynamics_output_is_enabled(dynamics->force_output))
return GIMP_BRUSH_PRESSURE;
return GIMP_BRUSH_SOFT;
}
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