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app: add a "Mandala" symmetry. 

This is basically a multiple rotation around a given center.
This commit is contained in:
Jehan 2015-03-25 17:19:33 +01:00
parent b5811b05ad
commit 1c0a0a47de
5 changed files with 635 additions and 0 deletions
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2
app/core/Makefile.am
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@ -371,6 +371,8 @@ libappcore_a_sources = \
gimpsubprogress.h \
gimpsymmetry.c \
gimpsymmetry.h \
gimpsymmetry-mandala.c \
gimpsymmetry-mandala.h \
gimpsymmetry-mirror.c \
gimpsymmetry-mirror.h \
gimpsymmetry-tiling.c \

1
app/core/core-types.h
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@ -180,6 +180,7 @@ typedef struct _GimpUndoAccumulator GimpUndoAccumulator;
typedef struct _GimpSymmetry GimpSymmetry;
typedef struct _GimpMirror GimpMirror;
typedef struct _GimpTiling GimpTiling;
typedef struct _GimpMandala GimpMandala;
/* misc objects */

2
app/core/gimpimage-symmetry.c
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@ -29,6 +29,7 @@
#include "gimpimage.h"
#include "gimpimage-private.h"
#include "gimpimage-symmetry.h"
#include "gimpsymmetry-mandala.h"
#include "gimpsymmetry-mirror.h"
#include "gimpsymmetry-tiling.h"
@ -44,6 +45,7 @@ gimp_image_symmetry_list (void)
list = g_list_prepend (list, GINT_TO_POINTER (GIMP_TYPE_MIRROR));
list = g_list_prepend (list, GINT_TO_POINTER (GIMP_TYPE_TILING));
list = g_list_prepend (list, GINT_TO_POINTER (GIMP_TYPE_MANDALA));
return list;
}

568
app/core/gimpsymmetry-mandala.c Normal file
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@ -0,0 +1,568 @@
/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpsymmetry-mandala.c
* Copyright (C) 2015 Jehan <jehan@gimp.org>
*
* 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 <string.h>
#include <cairo.h>
#include <gegl.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "libgimpconfig/gimpconfig.h"
#include "libgimpmath/gimpmath.h"
#include "core-types.h"
#include "gimp.h"
#include "gimp-cairo.h"
#include "gimpdrawable.h"
#include "gimpguide.h"
#include "gimpimage.h"
#include "gimpimage-guides.h"
#include "gimpimage-symmetry.h"
#include "gimpitem.h"
#include "gimpsymmetry-mandala.h"
#include "gimp-intl.h"
enum
{
PROP_0,
PROP_CENTER_X,
PROP_CENTER_Y,
PROP_SIZE,
PROP_DISABLE_TRANSFORMATION,
};
/* Local function prototypes */
static void gimp_mandala_constructed (GObject *object);
static void gimp_mandala_finalize (GObject *object);
static void gimp_mandala_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_mandala_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gimp_mandala_active_changed (GimpSymmetry *sym);
static void gimp_mandala_add_guide (GimpMandala *mandala,
GimpOrientationType orientation);
static void gimp_mandala_remove_guide (GimpMandala *mandala,
GimpOrientationType orientation);
static void gimp_mandala_guide_removed_cb (GObject *object,
GimpMandala *mandala);
static void gimp_mandala_guide_position_cb (GObject *object,
GParamSpec *pspec,
GimpMandala *mandala);
static void gimp_mandala_update_strokes (GimpSymmetry *mandala,
GimpDrawable *drawable,
GimpCoords *origin);
static GeglNode * gimp_mandala_get_operation (GimpSymmetry *mandala,
gint stroke,
gint paint_width,
gint paint_height);
static GParamSpec ** gimp_mandala_get_settings (GimpSymmetry *sym,
gint *n_settings);
static void
gimp_mandala_image_size_changed_cb (GimpImage *image ,
gint previous_origin_x,
gint previous_origin_y,
gint previous_width,
gint previous_height,
GimpSymmetry *sym);
G_DEFINE_TYPE (GimpMandala, gimp_mandala, GIMP_TYPE_SYMMETRY)
#define parent_class gimp_mandala_parent_class
static void
gimp_mandala_class_init (GimpMandalaClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpSymmetryClass *symmetry_class = GIMP_SYMMETRY_CLASS (klass);
object_class->constructed = gimp_mandala_constructed;
object_class->finalize = gimp_mandala_finalize;
object_class->set_property = gimp_mandala_set_property;
object_class->get_property = gimp_mandala_get_property;
symmetry_class->label = _("Mandala");
symmetry_class->update_strokes = gimp_mandala_update_strokes;
symmetry_class->get_operation = gimp_mandala_get_operation;
symmetry_class->get_settings = gimp_mandala_get_settings;
symmetry_class->active_changed = gimp_mandala_active_changed;
GIMP_CONFIG_INSTALL_PROP_DOUBLE (object_class, PROP_CENTER_X,
"center-x", _("Center absisce"),
0.0, 10000.0, 0.0,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_DOUBLE (object_class, PROP_CENTER_Y,
"center-y", _("Center ordinate"),
0.0, 10000.0, 0.0,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_INT (object_class, PROP_SIZE,
"size", _("Number of points"),
1, 100, 6.0,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_DISABLE_TRANSFORMATION,
"disable-transformation",
_("Disable Brush Transformation (faster)"),
FALSE,
GIMP_PARAM_STATIC_STRINGS);
}
static void
gimp_mandala_init (GimpMandala *mandala)
{
}
static void
gimp_mandala_constructed (GObject *object)
{
GimpSymmetry *sym;
GParamSpecDouble *dspec;
sym = GIMP_SYMMETRY (object);
/* Update property values to actual image size. */
dspec = G_PARAM_SPEC_DOUBLE (g_object_class_find_property (G_OBJECT_GET_CLASS (object),
"center-x"));
dspec->maximum = gimp_image_get_width (sym->image);
dspec = G_PARAM_SPEC_DOUBLE (g_object_class_find_property (G_OBJECT_GET_CLASS (object),
"center-y"));
dspec->maximum = gimp_image_get_height (sym->image);
g_signal_connect (sym->image, "size-changed-detailed",
G_CALLBACK (gimp_mandala_image_size_changed_cb),
sym);
}
static void
gimp_mandala_finalize (GObject *object)
{
GimpMandala *mandala;
mandala = GIMP_MANDALA (object);
if (mandala->horizontal_guide)
g_object_unref (mandala->horizontal_guide);
mandala->horizontal_guide = NULL;
if (mandala->vertical_guide)
g_object_unref (mandala->vertical_guide);
mandala->vertical_guide = NULL;
if (mandala->ops)
{
GList *iter;
for (iter = mandala->ops; iter; iter = g_list_next (iter))
{
if (iter->data)
g_object_unref (G_OBJECT (iter->data));
}
g_list_free (mandala->ops);
mandala->ops = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_mandala_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpMandala *mandala = GIMP_MANDALA (object);
switch (property_id)
{
case PROP_CENTER_X:
mandala->center_x = g_value_get_double (value);
if (mandala->vertical_guide)
gimp_guide_set_position (mandala->vertical_guide,
mandala->center_x);
break;
case PROP_CENTER_Y:
mandala->center_y = g_value_get_double (value);
if (mandala->horizontal_guide)
gimp_guide_set_position (mandala->horizontal_guide,
mandala->center_y);
break;
case PROP_SIZE:
mandala->size = g_value_get_int (value);
break;
case PROP_DISABLE_TRANSFORMATION:
mandala->disable_transformation = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_mandala_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpMandala *mandala = GIMP_MANDALA (object);
switch (property_id)
{
case PROP_CENTER_X:
g_value_set_double (value, mandala->center_x);
break;
case PROP_CENTER_Y:
g_value_set_double (value, mandala->center_y);
break;
case PROP_SIZE:
g_value_set_int (value, mandala->size);
break;
case PROP_DISABLE_TRANSFORMATION:
g_value_set_boolean (value, mandala->disable_transformation);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_mandala_active_changed (GimpSymmetry *sym)
{
GimpMandala *mandala = GIMP_MANDALA (sym);
if (sym->active)
{
if (! mandala->horizontal_guide)
gimp_mandala_add_guide (mandala, GIMP_ORIENTATION_HORIZONTAL);
if (! mandala->vertical_guide)
gimp_mandala_add_guide (mandala, GIMP_ORIENTATION_VERTICAL);
}
else
{
if (mandala->horizontal_guide)
gimp_mandala_remove_guide (mandala, GIMP_ORIENTATION_HORIZONTAL);
if (mandala->vertical_guide)
gimp_mandala_remove_guide (mandala, GIMP_ORIENTATION_VERTICAL);
}
}
static void
gimp_mandala_add_guide (GimpMandala *mandala,
GimpOrientationType orientation)
{
static GimpRGB normal_fg = { 1.0, 1.0, 1.0, 1.0 };
static GimpRGB normal_bg = { 0.0, 1.0, 1.0, 1.0 };
static GimpRGB active_fg = { 0.0, 1.0, 1.0, 1.0 };
static GimpRGB active_bg = { 1.0, 0.0, 0.0, 1.0 };
GimpSymmetry *sym;
GimpImage *image;
Gimp *gimp;
GimpGuide *guide;
gint position;
g_return_if_fail (GIMP_IS_MANDALA (mandala));
sym = GIMP_SYMMETRY (mandala);
image = sym->image;
gimp = GIMP (image->gimp);
guide = gimp_guide_custom_new (orientation,
gimp->next_guide_ID++,
&normal_fg, &normal_bg,
&active_fg, &active_bg,
1.0);
if (orientation == GIMP_ORIENTATION_HORIZONTAL)
{
mandala->horizontal_guide = guide;
/* Mandala guide position at first activation is at canvas middle. */
if (mandala->center_y < 1.0)
mandala->center_y = (gdouble) gimp_image_get_height (image) / 2.0;
position = (gint) mandala->center_y;
}
else
{
mandala->vertical_guide = guide;
/* Mandala guide position at first activation is at canvas middle. */
if (mandala->center_x < 1.0)
mandala->center_x = (gdouble) gimp_image_get_width (image) / 2.0;
position = (gint) mandala->center_x;
}
g_signal_connect (G_OBJECT (guide), "removed",
G_CALLBACK (gimp_mandala_guide_removed_cb),
mandala);
gimp_image_add_guide (image, guide,
(gint) position);
g_signal_connect (G_OBJECT (guide), "notify::position",
G_CALLBACK (gimp_mandala_guide_position_cb),
mandala);
}
static void
gimp_mandala_remove_guide (GimpMandala *mandala,
GimpOrientationType orientation)
{
GimpSymmetry *sym;
GimpImage *image;
GimpGuide *guide;
g_return_if_fail (GIMP_IS_MANDALA (mandala));
sym = GIMP_SYMMETRY (mandala);
image = sym->image;
guide = (orientation == GIMP_ORIENTATION_HORIZONTAL) ?
mandala->horizontal_guide : mandala->vertical_guide;
g_signal_handlers_disconnect_by_func (G_OBJECT (guide),
gimp_mandala_guide_removed_cb,
mandala);
g_signal_handlers_disconnect_by_func (G_OBJECT (guide),
gimp_mandala_guide_position_cb,
mandala);
gimp_image_remove_guide (image, guide, FALSE);
g_object_unref (guide);
if (orientation == GIMP_ORIENTATION_HORIZONTAL)
mandala->horizontal_guide = NULL;
else
mandala->vertical_guide = NULL;
}
static void
gimp_mandala_guide_removed_cb (GObject *object,
GimpMandala *mandala)
{
GimpSymmetry *sym;
sym = GIMP_SYMMETRY (mandala);
g_signal_handlers_disconnect_by_func (object,
gimp_mandala_guide_removed_cb,
mandala);
g_signal_handlers_disconnect_by_func (object,
gimp_mandala_guide_position_cb,
mandala);
if (GIMP_GUIDE (object) == mandala->horizontal_guide)
{
g_object_unref (mandala->horizontal_guide);
mandala->horizontal_guide = NULL;
mandala->center_y = 0.0;
gimp_mandala_remove_guide (mandala, GIMP_ORIENTATION_VERTICAL);
}
else if (GIMP_GUIDE (object) == mandala->vertical_guide)
{
g_object_unref (mandala->vertical_guide);
mandala->vertical_guide = NULL;
mandala->center_x = 0.0;
gimp_mandala_remove_guide (mandala, GIMP_ORIENTATION_HORIZONTAL);
}
gimp_image_symmetry_remove (sym->image, sym);
}
static void
gimp_mandala_guide_position_cb (GObject *object,
GParamSpec *pspec,
GimpMandala *mandala)
{
GimpGuide *guide;
guide = GIMP_GUIDE (object);
if (guide == mandala->horizontal_guide)
{
mandala->center_y = (gdouble) gimp_guide_get_position (guide);
}
else if (guide == mandala->vertical_guide)
{
mandala->center_x = (gdouble) gimp_guide_get_position (guide);
}
}
static void
gimp_mandala_update_strokes (GimpSymmetry *sym,
GimpDrawable *drawable,
GimpCoords *origin)
{
GimpMandala *mandala = GIMP_MANDALA (sym);
GimpCoords *coords;
GimpMatrix3 matrix;
gint i;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (GIMP_IS_SYMMETRY (sym));
g_list_free_full (sym->strokes, g_free);
sym->strokes = NULL;
coords = g_memdup (sym->origin, sizeof (GimpCoords));
sym->strokes = g_list_prepend (sym->strokes, coords);
for (i = 1; i < mandala->size; i++)
{
gdouble new_x, new_y;
coords = g_memdup (sym->origin, sizeof (GimpCoords));
gimp_matrix3_identity (&matrix);
gimp_matrix3_translate (&matrix,
- mandala->center_x,
- mandala->center_y);
gimp_matrix3_rotate (&matrix, - i * 2.0 * G_PI / (gdouble) mandala->size);
gimp_matrix3_translate (&matrix,
mandala->center_x,
mandala->center_y);
gimp_matrix3_transform_point (&matrix,
coords->x,
coords->y,
&new_x,
&new_y);
coords->x = new_x;
coords->y = new_y;
sym->strokes = g_list_prepend (sym->strokes, coords);
}
sym->strokes = g_list_reverse (sym->strokes);
g_signal_emit_by_name (sym, "strokes-updated", sym->image);
}
static GeglNode *
gimp_mandala_get_operation (GimpSymmetry *sym,
gint stroke,
gint paint_width,
gint paint_height)
{
GimpMandala *mandala = GIMP_MANDALA (sym);
GeglNode *op = NULL;
gint i;
g_return_val_if_fail (GIMP_IS_MANDALA (sym), NULL);
g_return_val_if_fail (stroke < mandala->size, NULL);
if (! mandala->disable_transformation &&
stroke != 0 &&
paint_width != 0 &&
paint_height != 0)
{
if (mandala->size != mandala->cached_size ||
mandala->cached_paint_width != paint_width ||
mandala->cached_paint_height != paint_height)
{
GList *iter;
if (mandala->ops)
{
for (iter = mandala->ops; iter; iter = g_list_next (iter))
{
if (iter->data)
g_object_unref (G_OBJECT (iter->data));
}
g_list_free (mandala->ops);
mandala->ops = NULL;
}
mandala->ops = g_list_prepend (mandala->ops, NULL);
for (i = 1; i < mandala->size; i++)
{
op = gegl_node_new_child (NULL,
"operation", "gegl:rotate",
"origin-x",
(gdouble) paint_width / 2.0,
"origin-y",
(gdouble) paint_height / 2.0,
"degrees",
i * 360.0 / (gdouble) mandala->size,
NULL);
mandala->ops = g_list_prepend (mandala->ops, op);
}
mandala->ops = g_list_reverse (mandala->ops);
mandala->cached_size = mandala->size;
mandala->cached_paint_width = paint_width;
mandala->cached_paint_height = paint_height;
}
op = g_list_nth_data (mandala->ops, stroke);
}
return op;
}
static GParamSpec **
gimp_mandala_get_settings (GimpSymmetry *sym,
gint *n_settings)
{
GParamSpec **pspecs;
*n_settings = 3;
pspecs = g_new (GParamSpec*, 3);
pspecs[0] = g_object_class_find_property (G_OBJECT_GET_CLASS (sym),
"size");
pspecs[1] = NULL;
pspecs[2] = g_object_class_find_property (G_OBJECT_GET_CLASS (sym),
"disable-transformation");
return pspecs;
}
static void
gimp_mandala_image_size_changed_cb (GimpImage *image,
gint previous_origin_x,
gint previous_origin_y,
gint previous_width,
gint previous_height,
GimpSymmetry *sym)
{
GParamSpecDouble *dspec;
if (previous_width != gimp_image_get_width (image))
{
dspec = G_PARAM_SPEC_DOUBLE (g_object_class_find_property (G_OBJECT_GET_CLASS (sym),
"center-x"));
dspec->maximum = gimp_image_get_width (sym->image);
}
if (previous_height != gimp_image_get_height (image))
{
dspec = G_PARAM_SPEC_DOUBLE (g_object_class_find_property (G_OBJECT_GET_CLASS (sym),
"center-y"));
dspec->maximum = gimp_image_get_height (sym->image);
}
if (previous_width != gimp_image_get_width (image) ||
previous_height != gimp_image_get_height (image))
g_signal_emit_by_name (sym, "update-ui", sym->image);
}

62
app/core/gimpsymmetry-mandala.h Normal file
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@ -0,0 +1,62 @@
/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpsymmetry-mandala.h
* Copyright (C) 2015 Jehan <jehan@gimp.org>
*
* 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/>.
*/
#ifndef __GIMP_MANDALA_H__
#define __GIMP_MANDALA_H__
#include "gimpsymmetry.h"
#define GIMP_TYPE_MANDALA (gimp_mandala_get_type ())
#define GIMP_MANDALA(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_MANDALA, GimpMandala))
#define GIMP_MANDALA_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_MANDALA, GimpMandalaClass))
#define GIMP_IS_MANDALA(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_MANDALA))
#define GIMP_IS_MANDALA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_MANDALA))
#define GIMP_MANDALA_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_MANDALA, GimpMandalaClass))
typedef struct _GimpMandalaClass GimpMandalaClass;
struct _GimpMandala
{
GimpSymmetry parent_instance;
gdouble center_x;
gdouble center_y;
gint size;
gboolean disable_transformation;
GimpGuide *horizontal_guide;
GimpGuide *vertical_guide;
GList *ops;
gint cached_size;
gint cached_paint_width;
gint cached_paint_height;
};
struct _GimpMandalaClass
{
GimpSymmetryClass parent_class;
};
GType gimp_mandala_get_type (void) G_GNUC_CONST;
#endif /* __GIMP_MANDALA_H__ */