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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpgradientselect.c
* Copyright (C) 2004 Michael Natterer <mitch@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 <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimp.h"
#include "core/gimpcontext.h"
#include "core/gimpgradient.h"
#include "core/gimpparamspecs.h"
#include "pdb/gimppdb.h"
#include "gimpcontainerbox.h"
#include "gimpdatafactoryview.h"
#include "gimpgradientselect.h"
enum
{
PROP_0,
PROP_SAMPLE_SIZE
};
static void gimp_gradient_select_constructed (GObject *object);
static void gimp_gradient_select_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static GimpValueArray * gimp_gradient_select_run_callback (GimpPdbDialog *dialog,
GimpObject *object,
gboolean closing,
GError **error);
G_DEFINE_TYPE (GimpGradientSelect, gimp_gradient_select,
GIMP_TYPE_PDB_DIALOG)
#define parent_class gimp_gradient_select_parent_class
static void
gimp_gradient_select_class_init (GimpGradientSelectClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpPdbDialogClass *pdb_class = GIMP_PDB_DIALOG_CLASS (klass);
object_class->constructed = gimp_gradient_select_constructed;
object_class->set_property = gimp_gradient_select_set_property;
pdb_class->run_callback = gimp_gradient_select_run_callback;
g_object_class_install_property (object_class, PROP_SAMPLE_SIZE,
g_param_spec_int ("sample-size", NULL, NULL,
0, 10000, 84,
GIMP_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY));
}
static void
gimp_gradient_select_init (GimpGradientSelect *select)
{
}
static void
gimp_gradient_select_constructed (GObject *object)
{
GimpPdbDialog *dialog = GIMP_PDB_DIALOG (object);
GtkWidget *content_area;
G_OBJECT_CLASS (parent_class)->constructed (object);
dialog->view =
gimp_data_factory_view_new (GIMP_VIEW_TYPE_LIST,
dialog->context->gimp->gradient_factory,
dialog->context,
GIMP_VIEW_SIZE_MEDIUM, 1,
dialog->menu_factory, "<Gradients>",
"/gradients-popup",
"gradients");
gimp_container_box_set_size_request (GIMP_CONTAINER_BOX (GIMP_CONTAINER_EDITOR (dialog->view)->view),
6 * (GIMP_VIEW_SIZE_MEDIUM + 2),
6 * (GIMP_VIEW_SIZE_MEDIUM + 2));
gtk_container_set_border_width (GTK_CONTAINER (dialog->view), 12);
content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
gtk_box_pack_start (GTK_BOX (content_area), dialog->view, TRUE, TRUE, 0);
gtk_widget_show (dialog->view);
}
static void
gimp_gradient_select_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpGradientSelect *select = GIMP_GRADIENT_SELECT (object);
switch (property_id)
{
case PROP_SAMPLE_SIZE:
select->sample_size = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static GimpValueArray *
gimp_gradient_select_run_callback (GimpPdbDialog *dialog,
GimpObject *object,
gboolean closing,
GError **error)
{
GimpGradient *gradient = GIMP_GRADIENT (object);
GimpGradientSegment *seg = NULL;
gdouble *values, *pv;
gdouble pos, delta;
GimpRGB color;
gint i;
GimpArray *array;
GimpValueArray *return_vals;
i = GIMP_GRADIENT_SELECT (dialog)->sample_size;
pos = 0.0;
delta = 1.0 / (i - 1);
values = g_new (gdouble, 4 * i);
pv = values;
while (i--)
{
seg = gimp_gradient_get_color_at (gradient, dialog->caller_context,
seg, pos, FALSE,
GIMP_GRADIENT_BLEND_RGB_PERCEPTUAL,
&color);
*pv++ = color.r;
*pv++ = color.g;
*pv++ = color.b;
*pv++ = color.a;
pos += delta;
}
array = gimp_array_new ((guint8 *) values,
GIMP_GRADIENT_SELECT (dialog)->sample_size * 4 *
sizeof (gdouble),
TRUE);
array->static_data = FALSE;
return_vals =
gimp_pdb_execute_procedure_by_name (dialog->pdb,
dialog->caller_context,
NULL, error,
dialog->callback_name,
G_TYPE_STRING, gimp_object_get_name (object),
GIMP_TYPE_INT32, array->length / sizeof (gdouble),
GIMP_TYPE_FLOAT_ARRAY, array,
GIMP_TYPE_INT32, closing,
G_TYPE_NONE);
gimp_array_free (array);
return return_vals;
}
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