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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:30:19 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:30:19 +0000 |
commit | 5c1676dfe6d2f3c837a5e074117b45613fd29a72 (patch) | |
tree | cbffb45144febf451e54061db2b21395faf94bfe /app/core/gimpdynamicsoutput.c | |
parent | Initial commit. (diff) | |
download | gimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.tar.xz gimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.zip |
Adding upstream version 2.10.34.upstream/2.10.34upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | app/core/gimpdynamicsoutput.c | 767 |
1 files changed, 767 insertions, 0 deletions
diff --git a/app/core/gimpdynamicsoutput.c b/app/core/gimpdynamicsoutput.c new file mode 100644 index 0000000..7a4f309 --- /dev/null +++ b/app/core/gimpdynamicsoutput.c @@ -0,0 +1,767 @@ +/* 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 <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <gdk-pixbuf/gdk-pixbuf.h> +#include <gegl.h> + +#include "libgimpmath/gimpmath.h" +#include "libgimpconfig/gimpconfig.h" + +#include "core-types.h" + +#include "paint/gimppaintoptions.h" + + +#include "gimpcurve.h" +#include "gimpcurve-map.h" + +#include "gimpdynamicsoutput.h" + +#include "gimp-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 _GimpDynamicsOutputPrivate GimpDynamicsOutputPrivate; + +struct _GimpDynamicsOutputPrivate +{ + GimpDynamicsOutputType type; + + gboolean use_pressure; + gboolean use_velocity; + gboolean use_direction; + gboolean use_tilt; + gboolean use_wheel; + gboolean use_random; + gboolean use_fade; + + GimpCurve *pressure_curve; + GimpCurve *velocity_curve; + GimpCurve *direction_curve; + GimpCurve *tilt_curve; + GimpCurve *wheel_curve; + GimpCurve *random_curve; + GimpCurve *fade_curve; +}; + +#define GET_PRIVATE(output) \ + ((GimpDynamicsOutputPrivate *) gimp_dynamics_output_get_instance_private ((GimpDynamicsOutput *) (output))) + + +static void gimp_dynamics_output_finalize (GObject *object); +static void gimp_dynamics_output_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec); +static void gimp_dynamics_output_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec); +static void gimp_dynamics_output_copy_curve (GimpCurve *src, + GimpCurve *dest); + +static GimpCurve * + gimp_dynamics_output_create_curve (GimpDynamicsOutput *output, + const gchar *name); +static void gimp_dynamics_output_curve_dirty (GimpCurve *curve, + GimpDynamicsOutput *output); + + +G_DEFINE_TYPE_WITH_CODE (GimpDynamicsOutput, gimp_dynamics_output, + GIMP_TYPE_OBJECT, + G_ADD_PRIVATE (GimpDynamicsOutput) + G_IMPLEMENT_INTERFACE (GIMP_TYPE_CONFIG, NULL)) + +#define parent_class gimp_dynamics_output_parent_class + + +static void +gimp_dynamics_output_class_init (GimpDynamicsOutputClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + + object_class->finalize = gimp_dynamics_output_finalize; + object_class->set_property = gimp_dynamics_output_set_property; + object_class->get_property = gimp_dynamics_output_get_property; + + g_object_class_install_property (object_class, PROP_TYPE, + g_param_spec_enum ("type", NULL, + _("Output type"), + GIMP_TYPE_DYNAMICS_OUTPUT_TYPE, + GIMP_DYNAMICS_OUTPUT_OPACITY, + GIMP_PARAM_READWRITE | + G_PARAM_CONSTRUCT)); + + GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_USE_PRESSURE, + "use-pressure", + NULL, NULL, + DEFAULT_USE_PRESSURE, + GIMP_PARAM_STATIC_STRINGS); + + GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_USE_VELOCITY, + "use-velocity", + NULL, NULL, + DEFAULT_USE_VELOCITY, + GIMP_PARAM_STATIC_STRINGS); + + GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_USE_DIRECTION, + "use-direction", + NULL, NULL, + DEFAULT_USE_DIRECTION, + GIMP_PARAM_STATIC_STRINGS); + + GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_USE_TILT, + "use-tilt", + NULL, NULL, + DEFAULT_USE_TILT, + GIMP_PARAM_STATIC_STRINGS); + + GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_USE_WHEEL, + "use-wheel", + NULL, NULL, + DEFAULT_USE_TILT, + GIMP_PARAM_STATIC_STRINGS); + + GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_USE_RANDOM, + "use-random", + NULL, NULL, + DEFAULT_USE_RANDOM, + GIMP_PARAM_STATIC_STRINGS); + + GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_USE_FADE, + "use-fade", + NULL, NULL, + DEFAULT_USE_FADE, + GIMP_PARAM_STATIC_STRINGS); + + GIMP_CONFIG_PROP_OBJECT (object_class, PROP_PRESSURE_CURVE, + "pressure-curve", + NULL, NULL, + GIMP_TYPE_CURVE, + GIMP_CONFIG_PARAM_AGGREGATE); + + GIMP_CONFIG_PROP_OBJECT (object_class, PROP_VELOCITY_CURVE, + "velocity-curve", + NULL, NULL, + GIMP_TYPE_CURVE, + GIMP_CONFIG_PARAM_AGGREGATE); + + GIMP_CONFIG_PROP_OBJECT (object_class, PROP_DIRECTION_CURVE, + "direction-curve", + NULL, NULL, + GIMP_TYPE_CURVE, + GIMP_CONFIG_PARAM_AGGREGATE); + + GIMP_CONFIG_PROP_OBJECT (object_class, PROP_TILT_CURVE, + "tilt-curve", + NULL, NULL, + GIMP_TYPE_CURVE, + GIMP_CONFIG_PARAM_AGGREGATE); + + GIMP_CONFIG_PROP_OBJECT (object_class, PROP_WHEEL_CURVE, + "wheel-curve", + NULL, NULL, + GIMP_TYPE_CURVE, + GIMP_CONFIG_PARAM_AGGREGATE); + + GIMP_CONFIG_PROP_OBJECT (object_class, PROP_RANDOM_CURVE, + "random-curve", + NULL, NULL, + GIMP_TYPE_CURVE, + GIMP_CONFIG_PARAM_AGGREGATE); + + GIMP_CONFIG_PROP_OBJECT (object_class, PROP_FADE_CURVE, + "fade-curve", + NULL, NULL, + GIMP_TYPE_CURVE, + GIMP_CONFIG_PARAM_AGGREGATE); +} + +static void +gimp_dynamics_output_init (GimpDynamicsOutput *output) +{ + GimpDynamicsOutputPrivate *private = GET_PRIVATE (output); + + private->pressure_curve = gimp_dynamics_output_create_curve (output, + "pressure-curve"); + private->velocity_curve = gimp_dynamics_output_create_curve (output, + "velocity-curve"); + private->direction_curve = gimp_dynamics_output_create_curve (output, + "direction-curve"); + private->tilt_curve = gimp_dynamics_output_create_curve (output, + "tilt-curve"); + private->wheel_curve = gimp_dynamics_output_create_curve (output, + "wheel-curve"); + private->random_curve = gimp_dynamics_output_create_curve (output, + "random-curve"); + private->fade_curve = gimp_dynamics_output_create_curve (output, + "fade-curve"); +} + +static void +gimp_dynamics_output_finalize (GObject *object) +{ + GimpDynamicsOutputPrivate *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 +gimp_dynamics_output_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec) +{ + GimpDynamicsOutputPrivate *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: + gimp_dynamics_output_copy_curve (g_value_get_object (value), + private->pressure_curve); + break; + + case PROP_VELOCITY_CURVE: + gimp_dynamics_output_copy_curve (g_value_get_object (value), + private->velocity_curve); + break; + + case PROP_DIRECTION_CURVE: + gimp_dynamics_output_copy_curve (g_value_get_object (value), + private->direction_curve); + break; + + case PROP_TILT_CURVE: + gimp_dynamics_output_copy_curve (g_value_get_object (value), + private->tilt_curve); + break; + + case PROP_WHEEL_CURVE: + gimp_dynamics_output_copy_curve (g_value_get_object (value), + private->wheel_curve); + break; + + case PROP_RANDOM_CURVE: + gimp_dynamics_output_copy_curve (g_value_get_object (value), + private->random_curve); + break; + + case PROP_FADE_CURVE: + gimp_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 +gimp_dynamics_output_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec) +{ + GimpDynamicsOutputPrivate *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 */ + +GimpDynamicsOutput * +gimp_dynamics_output_new (const gchar *name, + GimpDynamicsOutputType type) +{ + g_return_val_if_fail (name != NULL, NULL); + + return g_object_new (GIMP_TYPE_DYNAMICS_OUTPUT, + "name", name, + "type", type, + NULL); +} + +gboolean +gimp_dynamics_output_is_enabled (GimpDynamicsOutput *output) +{ + GimpDynamicsOutputPrivate *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 +gimp_dynamics_output_get_linear_value (GimpDynamicsOutput *output, + const GimpCoords *coords, + GimpPaintOptions *options, + gdouble fade_point) +{ + GimpDynamicsOutputPrivate *private = GET_PRIVATE (output); + gdouble total = 0.0; + gdouble result = 1.0; + gint factors = 0; + + if (private->use_pressure) + { + total += gimp_curve_map_value (private->pressure_curve, + coords->pressure); + factors++; + } + + if (private->use_velocity) + { + total += gimp_curve_map_value (private->velocity_curve, + (1.0 - coords->velocity)); + factors++; + } + + if (private->use_direction) + { + total += gimp_curve_map_value (private->direction_curve, + fmod (coords->direction + 0.5, 1)); + factors++; + } + + if (private->use_tilt) + { + total += gimp_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 += gimp_curve_map_value (private->wheel_curve, wheel); + factors++; + } + + if (private->use_random) + { + total += gimp_curve_map_value (private->random_curve, + g_random_double_range (0.0, 1.0)); + factors++; + } + + if (private->use_fade) + { + total += gimp_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 +gimp_dynamics_output_get_angular_value (GimpDynamicsOutput *output, + const GimpCoords *coords, + GimpPaintOptions *options, + gdouble fade_point) +{ + GimpDynamicsOutputPrivate *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 += gimp_curve_map_value (private->pressure_curve, + coords->pressure); + factors++; + } + + if (private->use_velocity) + { + total += gimp_curve_map_value (private->velocity_curve, + (1.0 - coords->velocity)); + factors++; + } + + if (private->use_direction) + { + gdouble angle = gimp_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 += gimp_curve_map_value (private->tilt_curve, tilt); + factors++; + } + + if (private->use_wheel) + { + gdouble angle = 1.0 - fmod(0.5 + coords->wheel, 1); + + total += gimp_curve_map_value (private->wheel_curve, angle); + factors++; + } + + if (private->use_random) + { + total += gimp_curve_map_value (private->random_curve, + g_random_double_range (0.0, 1.0)); + factors++; + } + + if (private->use_fade) + { + total += gimp_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 +gimp_dynamics_output_get_aspect_value (GimpDynamicsOutput *output, + const GimpCoords *coords, + GimpPaintOptions *options, + gdouble fade_point) +{ + GimpDynamicsOutputPrivate *private = GET_PRIVATE (output); + gdouble total = 0.0; + gint factors = 0; + gdouble sign = 1.0; + gdouble result = 1.0; + + if (private->use_pressure) + { + total += gimp_curve_map_value (private->pressure_curve, + coords->pressure); + factors++; + } + + if (private->use_velocity) + { + total += gimp_curve_map_value (private->velocity_curve, + coords->velocity); + factors++; + } + + if (private->use_direction) + { + gdouble direction = gimp_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 = gimp_curve_map_value (private->tilt_curve, + tilt_value); + + total += tilt_value; + + factors++; + } + + if (private->use_wheel) + { + gdouble wheel = gimp_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 = gimp_curve_map_value (private->random_curve, + g_random_double_range (0.0, 1.0)); + + total += random; + factors++; + } + + if (private->use_fade) + { + total += gimp_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 +gimp_dynamics_output_copy_curve (GimpCurve *src, + GimpCurve *dest) +{ + if (src && dest) + { + gimp_config_copy (GIMP_CONFIG (src), + GIMP_CONFIG (dest), + GIMP_CONFIG_PARAM_SERIALIZE); + } +} + +static GimpCurve * +gimp_dynamics_output_create_curve (GimpDynamicsOutput *output, + const gchar *name) +{ + GimpCurve *curve = GIMP_CURVE (gimp_curve_new (name)); + + g_signal_connect_object (curve, "dirty", + G_CALLBACK (gimp_dynamics_output_curve_dirty), + output, 0); + + return curve; +} + +static void +gimp_dynamics_output_curve_dirty (GimpCurve *curve, + GimpDynamicsOutput *output) +{ + g_object_notify (G_OBJECT (output), gimp_object_get_name (curve)); +} |