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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/gimpbrushgenerated.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 'app/core/gimpbrushgenerated.c')
-rw-r--r-- | app/core/gimpbrushgenerated.c | 875 |
1 files changed, 875 insertions, 0 deletions
diff --git a/app/core/gimpbrushgenerated.c b/app/core/gimpbrushgenerated.c new file mode 100644 index 0000000..dacdaa8 --- /dev/null +++ b/app/core/gimpbrushgenerated.c @@ -0,0 +1,875 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * gimp_brush_generated module Copyright 1998 Jay Cox <jaycox@earthlink.net> + * + * 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 "libgimpbase/gimpbase.h" +#include "libgimpmath/gimpmath.h" + +#include "core-types.h" + +#include "gimpbrush-private.h" +#include "gimpbrushgenerated.h" +#include "gimpbrushgenerated-load.h" +#include "gimpbrushgenerated-save.h" +#include "gimptempbuf.h" + +#include "gimp-intl.h" + + +#define OVERSAMPLING 4 + + +enum +{ + PROP_0, + PROP_SHAPE, + PROP_RADIUS, + PROP_SPIKES, + PROP_HARDNESS, + PROP_ASPECT_RATIO, + PROP_ANGLE +}; + + +/* local function prototypes */ + +static void gimp_brush_generated_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec); +static void gimp_brush_generated_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec); + +static void gimp_brush_generated_dirty (GimpData *data); +static const gchar * gimp_brush_generated_get_extension (GimpData *data); +static void gimp_brush_generated_copy (GimpData *data, + GimpData *src_data); + +static void gimp_brush_generated_transform_size(GimpBrush *gbrush, + gdouble scale, + gdouble aspect_ratio, + gdouble angle, + gboolean reflect, + gint *width, + gint *height); +static GimpTempBuf * gimp_brush_generated_transform_mask(GimpBrush *gbrush, + gdouble scale, + gdouble aspect_ratio, + gdouble angle, + gboolean reflect, + gdouble hardness); + +static GimpTempBuf * gimp_brush_generated_calc (GimpBrushGenerated *brush, + GimpBrushGeneratedShape shape, + gfloat radius, + gint spikes, + gfloat hardness, + gfloat aspect_ratio, + gfloat angle, + gboolean reflect, + GimpVector2 *xaxis, + GimpVector2 *yaxis); +static void gimp_brush_generated_get_size (GimpBrushGenerated *gbrush, + GimpBrushGeneratedShape shape, + gfloat radius, + gint spikes, + gfloat hardness, + gfloat aspect_ratio, + gdouble angle_in_degrees, + gboolean reflect, + gint *width, + gint *height, + gdouble *_s, + gdouble *_c, + GimpVector2 *_x_axis, + GimpVector2 *_y_axis); + + +G_DEFINE_TYPE (GimpBrushGenerated, gimp_brush_generated, GIMP_TYPE_BRUSH) + +#define parent_class gimp_brush_generated_parent_class + + +static void +gimp_brush_generated_class_init (GimpBrushGeneratedClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + GimpDataClass *data_class = GIMP_DATA_CLASS (klass); + GimpBrushClass *brush_class = GIMP_BRUSH_CLASS (klass); + + object_class->set_property = gimp_brush_generated_set_property; + object_class->get_property = gimp_brush_generated_get_property; + + data_class->save = gimp_brush_generated_save; + data_class->dirty = gimp_brush_generated_dirty; + data_class->get_extension = gimp_brush_generated_get_extension; + data_class->copy = gimp_brush_generated_copy; + + brush_class->transform_size = gimp_brush_generated_transform_size; + brush_class->transform_mask = gimp_brush_generated_transform_mask; + + g_object_class_install_property (object_class, PROP_SHAPE, + g_param_spec_enum ("shape", NULL, + _("Brush Shape"), + GIMP_TYPE_BRUSH_GENERATED_SHAPE, + GIMP_BRUSH_GENERATED_CIRCLE, + GIMP_PARAM_READWRITE | + G_PARAM_CONSTRUCT)); + + g_object_class_install_property (object_class, PROP_RADIUS, + g_param_spec_double ("radius", NULL, + _("Brush Radius"), + 0.1, 4000.0, 5.0, + GIMP_PARAM_READWRITE | + G_PARAM_CONSTRUCT)); + + g_object_class_install_property (object_class, PROP_SPIKES, + g_param_spec_int ("spikes", NULL, + _("Brush Spikes"), + 2, 20, 2, + GIMP_PARAM_READWRITE | + G_PARAM_CONSTRUCT)); + + g_object_class_install_property (object_class, PROP_HARDNESS, + g_param_spec_double ("hardness", NULL, + _("Brush Hardness"), + 0.0, 1.0, 0.0, + GIMP_PARAM_READWRITE | + G_PARAM_CONSTRUCT)); + + g_object_class_install_property (object_class, PROP_ASPECT_RATIO, + g_param_spec_double ("aspect-ratio", + NULL, + _("Brush Aspect Ratio"), + 1.0, 20.0, 1.0, + GIMP_PARAM_READWRITE | + G_PARAM_CONSTRUCT)); + + g_object_class_install_property (object_class, PROP_ANGLE, + g_param_spec_double ("angle", NULL, + _("Brush Angle"), + 0.0, 180.0, 0.0, + GIMP_PARAM_READWRITE | + G_PARAM_CONSTRUCT)); +} + +static void +gimp_brush_generated_init (GimpBrushGenerated *brush) +{ + brush->shape = GIMP_BRUSH_GENERATED_CIRCLE; + brush->radius = 5.0; + brush->hardness = 0.0; + brush->aspect_ratio = 1.0; + brush->angle = 0.0; +} + +static void +gimp_brush_generated_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec) +{ + GimpBrushGenerated *brush = GIMP_BRUSH_GENERATED (object); + + switch (property_id) + { + case PROP_SHAPE: + gimp_brush_generated_set_shape (brush, g_value_get_enum (value)); + break; + case PROP_RADIUS: + gimp_brush_generated_set_radius (brush, g_value_get_double (value)); + break; + case PROP_SPIKES: + gimp_brush_generated_set_spikes (brush, g_value_get_int (value)); + break; + case PROP_HARDNESS: + gimp_brush_generated_set_hardness (brush, g_value_get_double (value)); + break; + case PROP_ASPECT_RATIO: + gimp_brush_generated_set_aspect_ratio (brush, g_value_get_double (value)); + break; + case PROP_ANGLE: + gimp_brush_generated_set_angle (brush, g_value_get_double (value)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static void +gimp_brush_generated_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec) +{ + GimpBrushGenerated *brush = GIMP_BRUSH_GENERATED (object); + + switch (property_id) + { + case PROP_SHAPE: + g_value_set_enum (value, brush->shape); + break; + case PROP_RADIUS: + g_value_set_double (value, brush->radius); + break; + case PROP_SPIKES: + g_value_set_int (value, brush->spikes); + break; + case PROP_HARDNESS: + g_value_set_double (value, brush->hardness); + break; + case PROP_ASPECT_RATIO: + g_value_set_double (value, brush->aspect_ratio); + break; + case PROP_ANGLE: + g_value_set_double (value, brush->angle); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static void +gimp_brush_generated_dirty (GimpData *data) +{ + GimpBrushGenerated *brush = GIMP_BRUSH_GENERATED (data); + GimpBrush *gbrush = GIMP_BRUSH (brush); + + g_clear_pointer (&gbrush->priv->mask, gimp_temp_buf_unref); + + gbrush->priv->mask = gimp_brush_generated_calc (brush, + brush->shape, + brush->radius, + brush->spikes, + brush->hardness, + brush->aspect_ratio, + brush->angle, + FALSE, + &gbrush->priv->x_axis, + &gbrush->priv->y_axis); + + GIMP_DATA_CLASS (parent_class)->dirty (data); +} + +static const gchar * +gimp_brush_generated_get_extension (GimpData *data) +{ + return GIMP_BRUSH_GENERATED_FILE_EXTENSION; +} + +static void +gimp_brush_generated_copy (GimpData *data, + GimpData *src_data) +{ + GimpBrushGenerated *brush = GIMP_BRUSH_GENERATED (data); + GimpBrushGenerated *src_brush = GIMP_BRUSH_GENERATED (src_data); + + gimp_data_freeze (data); + + gimp_brush_set_spacing (GIMP_BRUSH (brush), + gimp_brush_get_spacing (GIMP_BRUSH (src_brush))); + + brush->shape = src_brush->shape; + brush->radius = src_brush->radius; + brush->spikes = src_brush->spikes; + brush->hardness = src_brush->hardness; + brush->aspect_ratio = src_brush->aspect_ratio; + brush->angle = src_brush->angle; + + gimp_data_thaw (data); +} + +static void +gimp_brush_generated_transform_size (GimpBrush *gbrush, + gdouble scale, + gdouble aspect_ratio, + gdouble angle, + gboolean reflect, + gint *width, + gint *height) +{ + GimpBrushGenerated *brush = GIMP_BRUSH_GENERATED (gbrush); + gdouble ratio; + + ratio = fabs (aspect_ratio) * 19.0 / 20.0 + 1.0; + ratio = MIN (ratio, 20); + + /* Since generated brushes are symmetric they don't have aspect + * ratios < 1.0. it's the same as rotating by 90 degrees and 1 / + * ratio, so we fix the input for this case. + */ + if (aspect_ratio < 0.0) + angle = angle + 0.25; + + angle = fmod (fmod (angle, 1.0) + 1.0, 1.0); + angle *= 360; + + gimp_brush_generated_get_size (brush, + brush->shape, + brush->radius * scale, + brush->spikes, + brush->hardness, + ratio, + angle, + reflect, + width, height, + NULL, NULL, NULL, NULL); +} + +static GimpTempBuf * +gimp_brush_generated_transform_mask (GimpBrush *gbrush, + gdouble scale, + gdouble aspect_ratio, + gdouble angle, + gboolean reflect, + gdouble hardness) +{ + GimpBrushGenerated *brush = GIMP_BRUSH_GENERATED (gbrush); + gdouble ratio; + + ratio = fabs (aspect_ratio) * 19.0 / 20.0 + 1.0; + ratio = MIN (ratio, 20); + + /* Since generated brushes are symmetric they don't have aspect + * ratios < 1.0. it's the same as rotating by 90 degrees and 1 / + * ratio, so we fix the input for this case. + */ + if (aspect_ratio < 0.0) + angle = angle + 0.25; + + angle = fmod (fmod (angle, 1.0) + 1.0, 1.0); + angle *= 360; + + if (scale == 1.0 && + ratio == brush->aspect_ratio && + angle == brush->angle && + reflect == FALSE && + hardness == brush->hardness) + { + return gimp_temp_buf_copy (gimp_brush_get_mask (gbrush)); + } + + return gimp_brush_generated_calc (brush, + brush->shape, + brush->radius * scale, + brush->spikes, + hardness, + ratio, + angle, + reflect, + NULL, NULL); +} + + +/* the actual brush rendering functions */ + +static gdouble +gauss (gdouble f) +{ + /* this aint' a real gauss function */ + if (f < -0.5) + { + f = -1.0 - f; + return (2.0 * f*f); + } + + if (f < 0.5) + return (1.0 - 2.0 * f*f); + + f = 1.0 - f; + return (2.0 * f*f); +} + +/* set up lookup table */ +static gfloat * +gimp_brush_generated_calc_lut (gdouble radius, + gdouble hardness) +{ + gfloat *lookup; + gint length; + gint x; + gdouble d; + gdouble sum; + gdouble exponent; + gdouble buffer[OVERSAMPLING]; + + length = OVERSAMPLING * ceil (1 + sqrt (2 * SQR (ceil (radius + 1.0)))); + + lookup = gegl_scratch_new (gfloat, length); + sum = 0.0; + + if ((1.0 - hardness) < 0.0000004) + exponent = 1000000.0; + else + exponent = 0.4 / (1.0 - hardness); + + for (x = 0; x < OVERSAMPLING; x++) + { + d = fabs ((x + 0.5) / OVERSAMPLING - 0.5); + + if (d > radius) + buffer[x] = 0.0; + else + buffer[x] = gauss (pow (d / radius, exponent)); + + sum += buffer[x]; + } + + for (x = 0; d < radius || sum > 0.00001; d += 1.0 / OVERSAMPLING) + { + sum -= buffer[x % OVERSAMPLING]; + + if (d > radius) + buffer[x % OVERSAMPLING] = 0.0; + else + buffer[x % OVERSAMPLING] = gauss (pow (d / radius, exponent)); + + sum += buffer[x % OVERSAMPLING]; + lookup[x++] = sum / OVERSAMPLING; + } + + while (x < length) + { + lookup[x++] = 0.0f; + } + + return lookup; +} + +static GimpTempBuf * +gimp_brush_generated_calc (GimpBrushGenerated *brush, + GimpBrushGeneratedShape shape, + gfloat radius, + gint spikes, + gfloat hardness, + gfloat aspect_ratio, + gfloat angle, + gboolean reflect, + GimpVector2 *xaxis, + GimpVector2 *yaxis) +{ + gfloat *centerp; + gfloat *lookup; + gfloat a; + gint x, y; + gdouble c, s, cs, ss; + GimpVector2 x_axis; + GimpVector2 y_axis; + GimpTempBuf *mask; + gint width; + gint height; + gint half_width; + gint half_height; + + gimp_brush_generated_get_size (brush, + shape, + radius, + spikes, + hardness, + aspect_ratio, + angle, + reflect, + &width, &height, + &s, &c, &x_axis, &y_axis); + + mask = gimp_temp_buf_new (width, height, + babl_format ("Y float")); + + half_width = width / 2; + half_height = height / 2; + + centerp = (gfloat *) gimp_temp_buf_get_data (mask) + + half_height * width + half_width; + + lookup = gimp_brush_generated_calc_lut (radius, hardness); + + cs = cos (- 2 * G_PI / spikes); + ss = sin (- 2 * G_PI / spikes); + + /* for an even number of spikes compute one half and mirror it */ + for (y = ((spikes % 2) ? -half_height : 0); y <= half_height; y++) + { + for (x = -half_width; x <= half_width; x++) + { + gdouble d = 0; + gdouble tx = c * x - s * y; + gdouble ty = fabs (s * x + c * y); + + if (spikes > 2) + { + gdouble angle = atan2 (ty, tx); + + while (angle > G_PI / spikes) + { + gdouble sx = tx; + gdouble sy = ty; + + tx = cs * sx - ss * sy; + ty = ss * sx + cs * sy; + + angle -= 2 * G_PI / spikes; + } + } + + ty *= aspect_ratio; + + switch (shape) + { + case GIMP_BRUSH_GENERATED_CIRCLE: + d = sqrt (SQR (tx) + SQR (ty)); + break; + case GIMP_BRUSH_GENERATED_SQUARE: + d = MAX (fabs (tx), fabs (ty)); + break; + case GIMP_BRUSH_GENERATED_DIAMOND: + d = fabs (tx) + fabs (ty); + break; + } + + if (d < radius + 1) + a = lookup[(gint) RINT (d * OVERSAMPLING)]; + else + a = 0.0f; + + centerp[y * width + x] = a; + + if (spikes % 2 == 0) + centerp[-1 * y * width - x] = a; + } + } + + gegl_scratch_free (lookup); + + if (xaxis) + *xaxis = x_axis; + + if (yaxis) + *yaxis = y_axis; + + return mask; +} + +/* This function is shared between gimp_brush_generated_transform_size and + * gimp_brush_generated_calc, therefore we provide a bunch of optional + * pointers for returnvalues. + */ +static void +gimp_brush_generated_get_size (GimpBrushGenerated *gbrush, + GimpBrushGeneratedShape shape, + gfloat radius, + gint spikes, + gfloat hardness, + gfloat aspect_ratio, + gdouble angle_in_degrees, + gboolean reflect, + gint *width, + gint *height, + gdouble *_s, + gdouble *_c, + GimpVector2 *_x_axis, + GimpVector2 *_y_axis) +{ + gdouble half_width = 0.0; + gdouble half_height = 0.0; + gint w, h; + gdouble c, s; + gdouble short_radius; + GimpVector2 x_axis; + GimpVector2 y_axis; + + /* Since floatongpoint is not really accurate, + * we need to round to limit the errors. + * Errors in some border cases resulted in + * different height and width reported for + * the same input value on calling procedure side. + * This became problem at the rise of dynamics that + * allows for any angle to turn up. + **/ + + angle_in_degrees = RINT (angle_in_degrees * 1000.0) / 1000.0; + + s = sin (gimp_deg_to_rad (angle_in_degrees)); + c = cos (gimp_deg_to_rad (angle_in_degrees)); + + if (reflect) + c = -c; + + short_radius = radius / aspect_ratio; + + x_axis.x = c * radius; + x_axis.y = -1.0 * s * radius; + y_axis.x = s * short_radius; + y_axis.y = c * short_radius; + + switch (shape) + { + case GIMP_BRUSH_GENERATED_CIRCLE: + half_width = sqrt (x_axis.x * x_axis.x + y_axis.x * y_axis.x); + half_height = sqrt (x_axis.y * x_axis.y + y_axis.y * y_axis.y); + break; + + case GIMP_BRUSH_GENERATED_SQUARE: + half_width = fabs (x_axis.x) + fabs (y_axis.x); + half_height = fabs (x_axis.y) + fabs (y_axis.y); + break; + + case GIMP_BRUSH_GENERATED_DIAMOND: + half_width = MAX (fabs (x_axis.x), fabs (y_axis.x)); + half_height = MAX (fabs (x_axis.y), fabs (y_axis.y)); + break; + } + + if (spikes > 2) + { + /* could be optimized by respecting the angle */ + half_width = half_height = sqrt (radius * radius + + short_radius * short_radius); + y_axis.x = s * radius; + y_axis.y = c * radius; + } + + w = MAX (1, ceil (half_width * 2)); + h = MAX (1, ceil (half_height * 2)); + + if (! (w & 0x1)) w++; + if (! (h & 0x1)) h++; + + *width = w; + *height = h; + + /* These will typically be set then this function is called by + * gimp_brush_generated_calc, which needs the values in its algorithms. + */ + if (_s != NULL) + *_s = s; + + if (_c != NULL) + *_c = c; + + if (_x_axis != NULL) + *_x_axis = x_axis; + + if (_y_axis != NULL) + *_y_axis = y_axis; +} + + +/* public functions */ + +GimpData * +gimp_brush_generated_new (const gchar *name, + GimpBrushGeneratedShape shape, + gfloat radius, + gint spikes, + gfloat hardness, + gfloat aspect_ratio, + gfloat angle) +{ + GimpBrushGenerated *brush; + + g_return_val_if_fail (name != NULL, NULL); + g_return_val_if_fail (*name != '\0', NULL); + + brush = g_object_new (GIMP_TYPE_BRUSH_GENERATED, + "name", name, + "mime-type", "application/x-gimp-brush-generated", + "spacing", 20.0, + "shape", shape, + "radius", radius, + "spikes", spikes, + "hardness", hardness, + "aspect-ratio", aspect_ratio, + "angle", angle, + NULL); + + return GIMP_DATA (brush); +} + +GimpBrushGeneratedShape +gimp_brush_generated_set_shape (GimpBrushGenerated *brush, + GimpBrushGeneratedShape shape) +{ + g_return_val_if_fail (GIMP_IS_BRUSH_GENERATED (brush), + GIMP_BRUSH_GENERATED_CIRCLE); + + if (brush->shape != shape) + { + brush->shape = shape; + + g_object_notify (G_OBJECT (brush), "shape"); + gimp_data_dirty (GIMP_DATA (brush)); + } + + return brush->shape; +} + +gfloat +gimp_brush_generated_set_radius (GimpBrushGenerated *brush, + gfloat radius) +{ + g_return_val_if_fail (GIMP_IS_BRUSH_GENERATED (brush), -1.0); + + radius = CLAMP (radius, 0.0, 32767.0); + + if (brush->radius != radius) + { + brush->radius = radius; + + g_object_notify (G_OBJECT (brush), "radius"); + gimp_data_dirty (GIMP_DATA (brush)); + } + + return brush->radius; +} + +gint +gimp_brush_generated_set_spikes (GimpBrushGenerated *brush, + gint spikes) +{ + g_return_val_if_fail (GIMP_IS_BRUSH_GENERATED (brush), -1); + + spikes = CLAMP (spikes, 2, 20); + + if (brush->spikes != spikes) + { + brush->spikes = spikes; + + g_object_notify (G_OBJECT (brush), "spikes"); + gimp_data_dirty (GIMP_DATA (brush)); + } + + return brush->spikes; +} + +gfloat +gimp_brush_generated_set_hardness (GimpBrushGenerated *brush, + gfloat hardness) +{ + g_return_val_if_fail (GIMP_IS_BRUSH_GENERATED (brush), -1.0); + + hardness = CLAMP (hardness, 0.0, 1.0); + + if (brush->hardness != hardness) + { + brush->hardness = hardness; + + g_object_notify (G_OBJECT (brush), "hardness"); + gimp_data_dirty (GIMP_DATA (brush)); + } + + return brush->hardness; +} + +gfloat +gimp_brush_generated_set_aspect_ratio (GimpBrushGenerated *brush, + gfloat ratio) +{ + g_return_val_if_fail (GIMP_IS_BRUSH_GENERATED (brush), -1.0); + + ratio = CLAMP (ratio, 1.0, 1000.0); + + if (brush->aspect_ratio != ratio) + { + brush->aspect_ratio = ratio; + + g_object_notify (G_OBJECT (brush), "aspect-ratio"); + gimp_data_dirty (GIMP_DATA (brush)); + } + + return brush->aspect_ratio; +} + +gfloat +gimp_brush_generated_set_angle (GimpBrushGenerated *brush, + gfloat angle) +{ + g_return_val_if_fail (GIMP_IS_BRUSH_GENERATED (brush), -1.0); + + if (angle < 0.0) + angle = -1.0 * fmod (angle, 180.0); + else if (angle > 180.0) + angle = fmod (angle, 180.0); + + if (brush->angle != angle) + { + brush->angle = angle; + + g_object_notify (G_OBJECT (brush), "angle"); + gimp_data_dirty (GIMP_DATA (brush)); + } + + return brush->angle; +} + +GimpBrushGeneratedShape +gimp_brush_generated_get_shape (GimpBrushGenerated *brush) +{ + g_return_val_if_fail (GIMP_IS_BRUSH_GENERATED (brush), + GIMP_BRUSH_GENERATED_CIRCLE); + + return brush->shape; +} + +gfloat +gimp_brush_generated_get_radius (GimpBrushGenerated *brush) +{ + g_return_val_if_fail (GIMP_IS_BRUSH_GENERATED (brush), -1.0); + + return brush->radius; +} + +gint +gimp_brush_generated_get_spikes (GimpBrushGenerated *brush) +{ + g_return_val_if_fail (GIMP_IS_BRUSH_GENERATED (brush), -1); + + return brush->spikes; +} + +gfloat +gimp_brush_generated_get_hardness (GimpBrushGenerated *brush) +{ + g_return_val_if_fail (GIMP_IS_BRUSH_GENERATED (brush), -1.0); + + return brush->hardness; +} + +gfloat +gimp_brush_generated_get_aspect_ratio (GimpBrushGenerated *brush) +{ + g_return_val_if_fail (GIMP_IS_BRUSH_GENERATED (brush), -1.0); + + return brush->aspect_ratio; +} + +gfloat +gimp_brush_generated_get_angle (GimpBrushGenerated *brush) +{ + g_return_val_if_fail (GIMP_IS_BRUSH_GENERATED (brush), -1.0); + + return brush->angle; +} |