773 lines
23 KiB
C
773 lines
23 KiB
C
|
/* PIKA - Photo and Image Kooker Application
|
||
|
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
|
||
|
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
|
||
|
*
|
||
|
* Original copyright, applying to most contents (license remains unchanged):
|
||
|
* 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 <https://www.gnu.org/licenses/>.
|
||
|
*/
|
||
|
|
||
|
#include "config.h"
|
||
|
|
||
|
#include <gdk-pixbuf/gdk-pixbuf.h>
|
||
|
#include <gegl.h>
|
||
|
|
||
|
#include "libpikabase/pikabase.h"
|
||
|
#include "libpikamath/pikamath.h"
|
||
|
#include "libpikaconfig/pikaconfig.h"
|
||
|
|
||
|
#include "core-types.h"
|
||
|
|
||
|
#include "paint/pikapaintoptions.h"
|
||
|
|
||
|
|
||
|
#include "pikacurve.h"
|
||
|
#include "pikacurve-map.h"
|
||
|
|
||
|
#include "pikadynamicsoutput.h"
|
||
|
|
||
|
#include "pika-intl.h"
|
||
|
|
||
|
|
||
|
#define DEFAULT_USE_PRESSURE FALSE
|
||
|
#define DEFAULT_USE_VELOCITY FALSE
|
||
|
#define DEFAULT_USE_DIRECTION FALSE
|
||
|
#define DEFAULT_USE_TILT FALSE
|
||
|
#define DEFAULT_USE_WHEEL FALSE
|
||
|
#define DEFAULT_USE_RANDOM FALSE
|
||
|
#define DEFAULT_USE_FADE FALSE
|
||
|
|
||
|
|
||
|
enum
|
||
|
{
|
||
|
PROP_0,
|
||
|
|
||
|
PROP_TYPE,
|
||
|
PROP_USE_PRESSURE,
|
||
|
PROP_USE_VELOCITY,
|
||
|
PROP_USE_DIRECTION,
|
||
|
PROP_USE_TILT,
|
||
|
PROP_USE_WHEEL,
|
||
|
PROP_USE_RANDOM,
|
||
|
PROP_USE_FADE,
|
||
|
PROP_PRESSURE_CURVE,
|
||
|
PROP_VELOCITY_CURVE,
|
||
|
PROP_DIRECTION_CURVE,
|
||
|
PROP_TILT_CURVE,
|
||
|
PROP_WHEEL_CURVE,
|
||
|
PROP_RANDOM_CURVE,
|
||
|
PROP_FADE_CURVE
|
||
|
};
|
||
|
|
||
|
|
||
|
typedef struct _PikaDynamicsOutputPrivate PikaDynamicsOutputPrivate;
|
||
|
|
||
|
struct _PikaDynamicsOutputPrivate
|
||
|
{
|
||
|
PikaDynamicsOutputType type;
|
||
|
|
||
|
gboolean use_pressure;
|
||
|
gboolean use_velocity;
|
||
|
gboolean use_direction;
|
||
|
gboolean use_tilt;
|
||
|
gboolean use_wheel;
|
||
|
gboolean use_random;
|
||
|
gboolean use_fade;
|
||
|
|
||
|
PikaCurve *pressure_curve;
|
||
|
PikaCurve *velocity_curve;
|
||
|
PikaCurve *direction_curve;
|
||
|
PikaCurve *tilt_curve;
|
||
|
PikaCurve *wheel_curve;
|
||
|
PikaCurve *random_curve;
|
||
|
PikaCurve *fade_curve;
|
||
|
};
|
||
|
|
||
|
#define GET_PRIVATE(output) \
|
||
|
((PikaDynamicsOutputPrivate *) pika_dynamics_output_get_instance_private ((PikaDynamicsOutput *) (output)))
|
||
|
|
||
|
|
||
|
static void pika_dynamics_output_finalize (GObject *object);
|
||
|
static void pika_dynamics_output_set_property (GObject *object,
|
||
|
guint property_id,
|
||
|
const GValue *value,
|
||
|
GParamSpec *pspec);
|
||
|
static void pika_dynamics_output_get_property (GObject *object,
|
||
|
guint property_id,
|
||
|
GValue *value,
|
||
|
GParamSpec *pspec);
|
||
|
static void pika_dynamics_output_copy_curve (PikaCurve *src,
|
||
|
PikaCurve *dest);
|
||
|
|
||
|
static PikaCurve *
|
||
|
pika_dynamics_output_create_curve (PikaDynamicsOutput *output,
|
||
|
const gchar *name);
|
||
|
static void pika_dynamics_output_curve_dirty (PikaCurve *curve,
|
||
|
PikaDynamicsOutput *output);
|
||
|
|
||
|
|
||
|
G_DEFINE_TYPE_WITH_CODE (PikaDynamicsOutput, pika_dynamics_output,
|
||
|
PIKA_TYPE_OBJECT,
|
||
|
G_ADD_PRIVATE (PikaDynamicsOutput)
|
||
|
G_IMPLEMENT_INTERFACE (PIKA_TYPE_CONFIG, NULL))
|
||
|
|
||
|
#define parent_class pika_dynamics_output_parent_class
|
||
|
|
||
|
|
||
|
static void
|
||
|
pika_dynamics_output_class_init (PikaDynamicsOutputClass *klass)
|
||
|
{
|
||
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||
|
|
||
|
object_class->finalize = pika_dynamics_output_finalize;
|
||
|
object_class->set_property = pika_dynamics_output_set_property;
|
||
|
object_class->get_property = pika_dynamics_output_get_property;
|
||
|
|
||
|
g_object_class_install_property (object_class, PROP_TYPE,
|
||
|
g_param_spec_enum ("type", NULL,
|
||
|
_("Output type"),
|
||
|
PIKA_TYPE_DYNAMICS_OUTPUT_TYPE,
|
||
|
PIKA_DYNAMICS_OUTPUT_OPACITY,
|
||
|
PIKA_PARAM_READWRITE |
|
||
|
G_PARAM_CONSTRUCT));
|
||
|
|
||
|
PIKA_CONFIG_PROP_BOOLEAN (object_class, PROP_USE_PRESSURE,
|
||
|
"use-pressure",
|
||
|
NULL, NULL,
|
||
|
DEFAULT_USE_PRESSURE,
|
||
|
PIKA_PARAM_STATIC_STRINGS);
|
||
|
|
||
|
PIKA_CONFIG_PROP_BOOLEAN (object_class, PROP_USE_VELOCITY,
|
||
|
"use-velocity",
|
||
|
NULL, NULL,
|
||
|
DEFAULT_USE_VELOCITY,
|
||
|
PIKA_PARAM_STATIC_STRINGS);
|
||
|
|
||
|
PIKA_CONFIG_PROP_BOOLEAN (object_class, PROP_USE_DIRECTION,
|
||
|
"use-direction",
|
||
|
NULL, NULL,
|
||
|
DEFAULT_USE_DIRECTION,
|
||
|
PIKA_PARAM_STATIC_STRINGS);
|
||
|
|
||
|
PIKA_CONFIG_PROP_BOOLEAN (object_class, PROP_USE_TILT,
|
||
|
"use-tilt",
|
||
|
NULL, NULL,
|
||
|
DEFAULT_USE_TILT,
|
||
|
PIKA_PARAM_STATIC_STRINGS);
|
||
|
|
||
|
PIKA_CONFIG_PROP_BOOLEAN (object_class, PROP_USE_WHEEL,
|
||
|
"use-wheel",
|
||
|
NULL, NULL,
|
||
|
DEFAULT_USE_TILT,
|
||
|
PIKA_PARAM_STATIC_STRINGS);
|
||
|
|
||
|
PIKA_CONFIG_PROP_BOOLEAN (object_class, PROP_USE_RANDOM,
|
||
|
"use-random",
|
||
|
NULL, NULL,
|
||
|
DEFAULT_USE_RANDOM,
|
||
|
PIKA_PARAM_STATIC_STRINGS);
|
||
|
|
||
|
PIKA_CONFIG_PROP_BOOLEAN (object_class, PROP_USE_FADE,
|
||
|
"use-fade",
|
||
|
NULL, NULL,
|
||
|
DEFAULT_USE_FADE,
|
||
|
PIKA_PARAM_STATIC_STRINGS);
|
||
|
|
||
|
PIKA_CONFIG_PROP_OBJECT (object_class, PROP_PRESSURE_CURVE,
|
||
|
"pressure-curve",
|
||
|
NULL, NULL,
|
||
|
PIKA_TYPE_CURVE,
|
||
|
PIKA_CONFIG_PARAM_AGGREGATE);
|
||
|
|
||
|
PIKA_CONFIG_PROP_OBJECT (object_class, PROP_VELOCITY_CURVE,
|
||
|
"velocity-curve",
|
||
|
NULL, NULL,
|
||
|
PIKA_TYPE_CURVE,
|
||
|
PIKA_CONFIG_PARAM_AGGREGATE);
|
||
|
|
||
|
PIKA_CONFIG_PROP_OBJECT (object_class, PROP_DIRECTION_CURVE,
|
||
|
"direction-curve",
|
||
|
NULL, NULL,
|
||
|
PIKA_TYPE_CURVE,
|
||
|
PIKA_CONFIG_PARAM_AGGREGATE);
|
||
|
|
||
|
PIKA_CONFIG_PROP_OBJECT (object_class, PROP_TILT_CURVE,
|
||
|
"tilt-curve",
|
||
|
NULL, NULL,
|
||
|
PIKA_TYPE_CURVE,
|
||
|
PIKA_CONFIG_PARAM_AGGREGATE);
|
||
|
|
||
|
PIKA_CONFIG_PROP_OBJECT (object_class, PROP_WHEEL_CURVE,
|
||
|
"wheel-curve",
|
||
|
NULL, NULL,
|
||
|
PIKA_TYPE_CURVE,
|
||
|
PIKA_CONFIG_PARAM_AGGREGATE);
|
||
|
|
||
|
PIKA_CONFIG_PROP_OBJECT (object_class, PROP_RANDOM_CURVE,
|
||
|
"random-curve",
|
||
|
NULL, NULL,
|
||
|
PIKA_TYPE_CURVE,
|
||
|
PIKA_CONFIG_PARAM_AGGREGATE);
|
||
|
|
||
|
PIKA_CONFIG_PROP_OBJECT (object_class, PROP_FADE_CURVE,
|
||
|
"fade-curve",
|
||
|
NULL, NULL,
|
||
|
PIKA_TYPE_CURVE,
|
||
|
PIKA_CONFIG_PARAM_AGGREGATE);
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
pika_dynamics_output_init (PikaDynamicsOutput *output)
|
||
|
{
|
||
|
PikaDynamicsOutputPrivate *private = GET_PRIVATE (output);
|
||
|
|
||
|
private->pressure_curve = pika_dynamics_output_create_curve (output,
|
||
|
"pressure-curve");
|
||
|
private->velocity_curve = pika_dynamics_output_create_curve (output,
|
||
|
"velocity-curve");
|
||
|
private->direction_curve = pika_dynamics_output_create_curve (output,
|
||
|
"direction-curve");
|
||
|
private->tilt_curve = pika_dynamics_output_create_curve (output,
|
||
|
"tilt-curve");
|
||
|
private->wheel_curve = pika_dynamics_output_create_curve (output,
|
||
|
"wheel-curve");
|
||
|
private->random_curve = pika_dynamics_output_create_curve (output,
|
||
|
"random-curve");
|
||
|
private->fade_curve = pika_dynamics_output_create_curve (output,
|
||
|
"fade-curve");
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
pika_dynamics_output_finalize (GObject *object)
|
||
|
{
|
||
|
PikaDynamicsOutputPrivate *private = GET_PRIVATE (object);
|
||
|
|
||
|
g_clear_object (&private->pressure_curve);
|
||
|
g_clear_object (&private->velocity_curve);
|
||
|
g_clear_object (&private->direction_curve);
|
||
|
g_clear_object (&private->tilt_curve);
|
||
|
g_clear_object (&private->wheel_curve);
|
||
|
g_clear_object (&private->random_curve);
|
||
|
g_clear_object (&private->fade_curve);
|
||
|
|
||
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
pika_dynamics_output_set_property (GObject *object,
|
||
|
guint property_id,
|
||
|
const GValue *value,
|
||
|
GParamSpec *pspec)
|
||
|
{
|
||
|
PikaDynamicsOutputPrivate *private = GET_PRIVATE (object);
|
||
|
|
||
|
switch (property_id)
|
||
|
{
|
||
|
case PROP_TYPE:
|
||
|
private->type = g_value_get_enum (value);
|
||
|
break;
|
||
|
|
||
|
case PROP_USE_PRESSURE:
|
||
|
private->use_pressure = g_value_get_boolean (value);
|
||
|
break;
|
||
|
|
||
|
case PROP_USE_VELOCITY:
|
||
|
private->use_velocity = g_value_get_boolean (value);
|
||
|
break;
|
||
|
|
||
|
case PROP_USE_DIRECTION:
|
||
|
private->use_direction = g_value_get_boolean (value);
|
||
|
break;
|
||
|
|
||
|
case PROP_USE_TILT:
|
||
|
private->use_tilt = g_value_get_boolean (value);
|
||
|
break;
|
||
|
|
||
|
case PROP_USE_WHEEL:
|
||
|
private->use_wheel = g_value_get_boolean (value);
|
||
|
break;
|
||
|
|
||
|
case PROP_USE_RANDOM:
|
||
|
private->use_random = g_value_get_boolean (value);
|
||
|
break;
|
||
|
|
||
|
case PROP_USE_FADE:
|
||
|
private->use_fade = g_value_get_boolean (value);
|
||
|
break;
|
||
|
|
||
|
case PROP_PRESSURE_CURVE:
|
||
|
pika_dynamics_output_copy_curve (g_value_get_object (value),
|
||
|
private->pressure_curve);
|
||
|
break;
|
||
|
|
||
|
case PROP_VELOCITY_CURVE:
|
||
|
pika_dynamics_output_copy_curve (g_value_get_object (value),
|
||
|
private->velocity_curve);
|
||
|
break;
|
||
|
|
||
|
case PROP_DIRECTION_CURVE:
|
||
|
pika_dynamics_output_copy_curve (g_value_get_object (value),
|
||
|
private->direction_curve);
|
||
|
break;
|
||
|
|
||
|
case PROP_TILT_CURVE:
|
||
|
pika_dynamics_output_copy_curve (g_value_get_object (value),
|
||
|
private->tilt_curve);
|
||
|
break;
|
||
|
|
||
|
case PROP_WHEEL_CURVE:
|
||
|
pika_dynamics_output_copy_curve (g_value_get_object (value),
|
||
|
private->wheel_curve);
|
||
|
break;
|
||
|
|
||
|
case PROP_RANDOM_CURVE:
|
||
|
pika_dynamics_output_copy_curve (g_value_get_object (value),
|
||
|
private->random_curve);
|
||
|
break;
|
||
|
|
||
|
case PROP_FADE_CURVE:
|
||
|
pika_dynamics_output_copy_curve (g_value_get_object (value),
|
||
|
private->fade_curve);
|
||
|
break;
|
||
|
|
||
|
default:
|
||
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
pika_dynamics_output_get_property (GObject *object,
|
||
|
guint property_id,
|
||
|
GValue *value,
|
||
|
GParamSpec *pspec)
|
||
|
{
|
||
|
PikaDynamicsOutputPrivate *private = GET_PRIVATE (object);
|
||
|
|
||
|
switch (property_id)
|
||
|
{
|
||
|
case PROP_TYPE:
|
||
|
g_value_set_enum (value, private->type);
|
||
|
break;
|
||
|
|
||
|
case PROP_USE_PRESSURE:
|
||
|
g_value_set_boolean (value, private->use_pressure);
|
||
|
break;
|
||
|
|
||
|
case PROP_USE_VELOCITY:
|
||
|
g_value_set_boolean (value, private->use_velocity);
|
||
|
break;
|
||
|
|
||
|
case PROP_USE_DIRECTION:
|
||
|
g_value_set_boolean (value, private->use_direction);
|
||
|
break;
|
||
|
|
||
|
case PROP_USE_TILT:
|
||
|
g_value_set_boolean (value, private->use_tilt);
|
||
|
break;
|
||
|
|
||
|
case PROP_USE_WHEEL:
|
||
|
g_value_set_boolean (value, private->use_wheel);
|
||
|
break;
|
||
|
|
||
|
case PROP_USE_RANDOM:
|
||
|
g_value_set_boolean (value, private->use_random);
|
||
|
break;
|
||
|
|
||
|
case PROP_USE_FADE:
|
||
|
g_value_set_boolean (value, private->use_fade);
|
||
|
break;
|
||
|
|
||
|
case PROP_PRESSURE_CURVE:
|
||
|
g_value_set_object (value, private->pressure_curve);
|
||
|
break;
|
||
|
|
||
|
case PROP_VELOCITY_CURVE:
|
||
|
g_value_set_object (value, private->velocity_curve);
|
||
|
break;
|
||
|
|
||
|
case PROP_DIRECTION_CURVE:
|
||
|
g_value_set_object (value, private->direction_curve);
|
||
|
break;
|
||
|
|
||
|
case PROP_TILT_CURVE:
|
||
|
g_value_set_object (value, private->tilt_curve);
|
||
|
break;
|
||
|
|
||
|
case PROP_WHEEL_CURVE:
|
||
|
g_value_set_object (value, private->wheel_curve);
|
||
|
break;
|
||
|
|
||
|
case PROP_RANDOM_CURVE:
|
||
|
g_value_set_object (value, private->random_curve);
|
||
|
break;
|
||
|
|
||
|
case PROP_FADE_CURVE:
|
||
|
g_value_set_object (value, private->fade_curve);
|
||
|
break;
|
||
|
|
||
|
default:
|
||
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
|
||
|
/* public functions */
|
||
|
|
||
|
PikaDynamicsOutput *
|
||
|
pika_dynamics_output_new (const gchar *name,
|
||
|
PikaDynamicsOutputType type)
|
||
|
{
|
||
|
g_return_val_if_fail (name != NULL, NULL);
|
||
|
|
||
|
return g_object_new (PIKA_TYPE_DYNAMICS_OUTPUT,
|
||
|
"name", name,
|
||
|
"type", type,
|
||
|
NULL);
|
||
|
}
|
||
|
|
||
|
gboolean
|
||
|
pika_dynamics_output_is_enabled (PikaDynamicsOutput *output)
|
||
|
{
|
||
|
PikaDynamicsOutputPrivate *private = GET_PRIVATE (output);
|
||
|
|
||
|
return (private->use_pressure ||
|
||
|
private->use_velocity ||
|
||
|
private->use_direction ||
|
||
|
private->use_tilt ||
|
||
|
private->use_wheel ||
|
||
|
private->use_random ||
|
||
|
private->use_fade);
|
||
|
}
|
||
|
|
||
|
gdouble
|
||
|
pika_dynamics_output_get_linear_value (PikaDynamicsOutput *output,
|
||
|
const PikaCoords *coords,
|
||
|
PikaPaintOptions *options,
|
||
|
gdouble fade_point)
|
||
|
{
|
||
|
PikaDynamicsOutputPrivate *private = GET_PRIVATE (output);
|
||
|
gdouble total = 0.0;
|
||
|
gdouble result = 1.0;
|
||
|
gint factors = 0;
|
||
|
|
||
|
if (private->use_pressure)
|
||
|
{
|
||
|
total += pika_curve_map_value (private->pressure_curve,
|
||
|
coords->pressure);
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (private->use_velocity)
|
||
|
{
|
||
|
total += pika_curve_map_value (private->velocity_curve,
|
||
|
(1.0 - coords->velocity));
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (private->use_direction)
|
||
|
{
|
||
|
total += pika_curve_map_value (private->direction_curve,
|
||
|
fmod (coords->direction + 0.5, 1));
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (private->use_tilt)
|
||
|
{
|
||
|
total += pika_curve_map_value (private->tilt_curve,
|
||
|
(1.0 - sqrt (SQR (coords->xtilt) +
|
||
|
SQR (coords->ytilt))));
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (private->use_wheel)
|
||
|
{
|
||
|
gdouble wheel;
|
||
|
|
||
|
wheel = coords->wheel;
|
||
|
|
||
|
total += pika_curve_map_value (private->wheel_curve, wheel);
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (private->use_random)
|
||
|
{
|
||
|
total += pika_curve_map_value (private->random_curve,
|
||
|
g_random_double_range (0.0, 1.0));
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (private->use_fade)
|
||
|
{
|
||
|
total += pika_curve_map_value (private->fade_curve, fade_point);
|
||
|
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (factors > 0)
|
||
|
result = total / factors;
|
||
|
|
||
|
#if 0
|
||
|
g_printerr ("Dynamics queried(linear). Result: %f, factors: %d, total: %f\n",
|
||
|
result, factors, total);
|
||
|
#endif
|
||
|
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
gdouble
|
||
|
pika_dynamics_output_get_angular_value (PikaDynamicsOutput *output,
|
||
|
const PikaCoords *coords,
|
||
|
PikaPaintOptions *options,
|
||
|
gdouble fade_point)
|
||
|
{
|
||
|
PikaDynamicsOutputPrivate *private = GET_PRIVATE (output);
|
||
|
gdouble total = 0.0;
|
||
|
gdouble result = 0.0; /* angles are additive, so we return zero for no change. */
|
||
|
gint factors = 0;
|
||
|
|
||
|
if (private->use_pressure)
|
||
|
{
|
||
|
total += pika_curve_map_value (private->pressure_curve,
|
||
|
coords->pressure);
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (private->use_velocity)
|
||
|
{
|
||
|
total += pika_curve_map_value (private->velocity_curve,
|
||
|
(1.0 - coords->velocity));
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (private->use_direction)
|
||
|
{
|
||
|
gdouble angle = pika_curve_map_value (private->direction_curve,
|
||
|
coords->direction);
|
||
|
|
||
|
if (options->brush_lock_to_view)
|
||
|
{
|
||
|
if (coords->reflect)
|
||
|
angle = 0.5 - angle;
|
||
|
|
||
|
angle -= coords->angle;
|
||
|
angle = fmod (fmod (angle, 1.0) + 1.0, 1.0);
|
||
|
}
|
||
|
|
||
|
total += angle;
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
/* For tilt to make sense, it needs to be converted to an angle, not
|
||
|
* just a vector
|
||
|
*/
|
||
|
if (private->use_tilt)
|
||
|
{
|
||
|
gdouble tilt_x = coords->xtilt;
|
||
|
gdouble tilt_y = coords->ytilt;
|
||
|
gdouble tilt = 0.0;
|
||
|
|
||
|
if (tilt_x == 0.0)
|
||
|
{
|
||
|
if (tilt_y > 0.0)
|
||
|
tilt = 0.25;
|
||
|
else if (tilt_y < 0.0)
|
||
|
tilt = 0.75;
|
||
|
else
|
||
|
tilt = 0.0;
|
||
|
}
|
||
|
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;
|
||
|
|
||
|
total += pika_curve_map_value (private->tilt_curve, tilt);
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (private->use_wheel)
|
||
|
{
|
||
|
gdouble angle = 1.0 - fmod(0.5 + coords->wheel, 1);
|
||
|
|
||
|
total += pika_curve_map_value (private->wheel_curve, angle);
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (private->use_random)
|
||
|
{
|
||
|
total += pika_curve_map_value (private->random_curve,
|
||
|
g_random_double_range (0.0, 1.0));
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (private->use_fade)
|
||
|
{
|
||
|
total += pika_curve_map_value (private->fade_curve, fade_point);
|
||
|
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (factors > 0)
|
||
|
result = total / factors;
|
||
|
|
||
|
#if 0
|
||
|
g_printerr ("Dynamics queried(angle). Result: %f, factors: %d, total: %f\n",
|
||
|
result, factors, total);
|
||
|
#endif
|
||
|
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
gdouble
|
||
|
pika_dynamics_output_get_aspect_value (PikaDynamicsOutput *output,
|
||
|
const PikaCoords *coords,
|
||
|
PikaPaintOptions *options,
|
||
|
gdouble fade_point)
|
||
|
{
|
||
|
PikaDynamicsOutputPrivate *private = GET_PRIVATE (output);
|
||
|
gdouble total = 0.0;
|
||
|
gint factors = 0;
|
||
|
gdouble sign = 1.0;
|
||
|
gdouble result = 1.0;
|
||
|
|
||
|
if (private->use_pressure)
|
||
|
{
|
||
|
total += pika_curve_map_value (private->pressure_curve,
|
||
|
coords->pressure);
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (private->use_velocity)
|
||
|
{
|
||
|
total += pika_curve_map_value (private->velocity_curve,
|
||
|
coords->velocity);
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (private->use_direction)
|
||
|
{
|
||
|
gdouble direction = pika_curve_map_value (private->direction_curve,
|
||
|
coords->direction);
|
||
|
|
||
|
if (((direction > 0.875) && (direction <= 1.0)) ||
|
||
|
((direction > 0.0) && (direction < 0.125)) ||
|
||
|
((direction > 0.375) && (direction < 0.625)))
|
||
|
sign = -1.0;
|
||
|
|
||
|
total += 1.0;
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (private->use_tilt)
|
||
|
{
|
||
|
gdouble tilt_value = MAX (fabs (coords->xtilt), fabs (coords->ytilt));
|
||
|
|
||
|
tilt_value = pika_curve_map_value (private->tilt_curve,
|
||
|
tilt_value);
|
||
|
|
||
|
total += tilt_value;
|
||
|
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (private->use_wheel)
|
||
|
{
|
||
|
gdouble wheel = pika_curve_map_value (private->wheel_curve,
|
||
|
coords->wheel);
|
||
|
|
||
|
if (((wheel > 0.875) && (wheel <= 1.0)) ||
|
||
|
((wheel > 0.0) && (wheel < 0.125)) ||
|
||
|
((wheel > 0.375) && (wheel < 0.625)))
|
||
|
sign = -1.0;
|
||
|
|
||
|
total += 1.0;
|
||
|
factors++;
|
||
|
|
||
|
}
|
||
|
|
||
|
if (private->use_random)
|
||
|
{
|
||
|
gdouble random = pika_curve_map_value (private->random_curve,
|
||
|
g_random_double_range (0.0, 1.0));
|
||
|
|
||
|
total += random;
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (private->use_fade)
|
||
|
{
|
||
|
total += pika_curve_map_value (private->fade_curve, fade_point);
|
||
|
|
||
|
factors++;
|
||
|
}
|
||
|
|
||
|
if (factors > 0)
|
||
|
result = total / factors;
|
||
|
|
||
|
|
||
|
#if 0
|
||
|
g_printerr ("Dynamics queried(aspect). Result: %f, factors: %d, total: %f sign: %f\n",
|
||
|
result, factors, total, sign);
|
||
|
#endif
|
||
|
result = CLAMP (result * sign, -1.0, 1.0);
|
||
|
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
pika_dynamics_output_copy_curve (PikaCurve *src,
|
||
|
PikaCurve *dest)
|
||
|
{
|
||
|
if (src && dest)
|
||
|
{
|
||
|
pika_config_copy (PIKA_CONFIG (src),
|
||
|
PIKA_CONFIG (dest),
|
||
|
PIKA_CONFIG_PARAM_SERIALIZE);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static PikaCurve *
|
||
|
pika_dynamics_output_create_curve (PikaDynamicsOutput *output,
|
||
|
const gchar *name)
|
||
|
{
|
||
|
PikaCurve *curve = PIKA_CURVE (pika_curve_new (name));
|
||
|
|
||
|
g_signal_connect_object (curve, "dirty",
|
||
|
G_CALLBACK (pika_dynamics_output_curve_dirty),
|
||
|
output, 0);
|
||
|
|
||
|
return curve;
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
pika_dynamics_output_curve_dirty (PikaCurve *curve,
|
||
|
PikaDynamicsOutput *output)
|
||
|
{
|
||
|
g_object_notify (G_OBJECT (output), pika_object_get_name (curve));
|
||
|
}
|