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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpimage-symmetry.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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "core-types.h"
#include "gimpsymmetry.h"
#include "gimpimage.h"
#include "gimpimage-private.h"
#include "gimpimage-symmetry.h"
#include "gimpsymmetry-mandala.h"
#include "gimpsymmetry-mirror.h"
#include "gimpsymmetry-tiling.h"
/**
* gimp_image_symmetry_list:
*
* Returns a list of #GType of all existing symmetries.
**/
GList *
gimp_image_symmetry_list (void)
{
GList *list = NULL;
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;
}
/**
* gimp_image_symmetry_new:
* @image: the #GimpImage
* @type: the #GType of the symmetry
*
* Creates a new #GimpSymmetry of @type attached to @image.
* @type must be a subtype of `GIMP_TYPE_SYMMETRY`.
* Note that using the base @type `GIMP_TYPE_SYMMETRY` creates an
* identity transformation.
*
* Returns: the new #GimpSymmetry.
**/
GimpSymmetry *
gimp_image_symmetry_new (GimpImage *image,
GType type)
{
GimpSymmetry *sym = NULL;
g_return_val_if_fail (g_type_is_a (type, GIMP_TYPE_SYMMETRY), NULL);
sym = g_object_new (type,
"image", image,
NULL);
return sym;
}
/**
* gimp_image_symmetry_add:
* @image: the #GimpImage
* @type: the #GType of the symmetry
*
* Add a symmetry of type @type to @image and make it the
* active transformation.
**/
void
gimp_image_symmetry_add (GimpImage *image,
GimpSymmetry *sym)
{
GimpImagePrivate *private;
g_return_if_fail (GIMP_IS_IMAGE (image));
g_return_if_fail (GIMP_IS_SYMMETRY (sym));
private = GIMP_IMAGE_GET_PRIVATE (image);
private->symmetries = g_list_prepend (private->symmetries,
g_object_ref (sym));
}
/**
* gimp_image_symmetry_remove:
* @image: the #GimpImage
* @sym: the #GimpSymmetry
*
* Remove @sym from the list of symmetries of @image.
* If it was the active transformation, unselect it first.
**/
void
gimp_image_symmetry_remove (GimpImage *image,
GimpSymmetry *sym)
{
GimpImagePrivate *private;
g_return_if_fail (GIMP_IS_SYMMETRY (sym));
g_return_if_fail (GIMP_IS_IMAGE (image));
private = GIMP_IMAGE_GET_PRIVATE (image);
if (private->active_symmetry == sym)
gimp_image_set_active_symmetry (image, GIMP_TYPE_SYMMETRY);
private->symmetries = g_list_remove (private->symmetries, sym);
g_object_unref (sym);
}
/**
* gimp_image_symmetry_get:
* @image: the #GimpImage
*
* Returns: the list of #GimpSymmetry set on @image.
* The returned list belongs to @image and should not be freed.
**/
GList *
gimp_image_symmetry_get (GimpImage *image)
{
GimpImagePrivate *private;
g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
private = GIMP_IMAGE_GET_PRIVATE (image);
return private->symmetries;
}
/**
* gimp_image_set_active_symmetry:
* @image: the #GimpImage
* @type: the #GType of the symmetry
*
* Select the symmetry of type @type.
* Using the GType allows to select a transformation without
* knowing whether one of the same @type was already created.
*
* Returns TRUE on success, FALSE if no such symmetry was found.
**/
gboolean
gimp_image_set_active_symmetry (GimpImage *image,
GType type)
{
g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
g_object_set (image,
"symmetry", type,
NULL);
return TRUE;
}
/**
* gimp_image_get_active_symmetry:
* @image: the #GimpImage
*
* Returns the #GimpSymmetry transformation active on @image.
**/
GimpSymmetry *
gimp_image_get_active_symmetry (GimpImage *image)
{
GimpImagePrivate *private;
g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE);
private = GIMP_IMAGE_GET_PRIVATE (image);
return private->active_symmetry;
}
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