142 lines
5.0 KiB
C
142 lines
5.0 KiB
C
/* PIKA - Photo and Image Kooker Application
|
|
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
|
|
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
|
|
*
|
|
* Original copyright, applying to most contents (license remains unchanged):
|
|
* Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
|
|
*
|
|
* pikapropgui-color-to-alpha.c
|
|
* Copyright (C) 2017 Ell
|
|
*
|
|
* 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 "libpikamath/pikamath.h"
|
|
#include "libpikawidgets/pikawidgets.h"
|
|
|
|
#include "propgui-types.h"
|
|
|
|
#include "core/pikacontext.h"
|
|
|
|
#include "pikapropgui.h"
|
|
#include "pikapropgui-color-to-alpha.h"
|
|
#include "pikapropgui-generic.h"
|
|
|
|
#include "pika-intl.h"
|
|
|
|
|
|
static void
|
|
threshold_picked (GObject *config,
|
|
gpointer identifier,
|
|
gdouble x,
|
|
gdouble y,
|
|
const Babl *sample_format,
|
|
const PikaRGB *picked_color)
|
|
{
|
|
PikaRGB *color;
|
|
gdouble threshold = 0.0;
|
|
|
|
g_object_get (config,
|
|
"color", &color,
|
|
NULL);
|
|
|
|
threshold = MAX (threshold, fabs (picked_color->r - color->r));
|
|
threshold = MAX (threshold, fabs (picked_color->g - color->g));
|
|
threshold = MAX (threshold, fabs (picked_color->b - color->b));
|
|
|
|
g_object_set (config,
|
|
identifier, threshold,
|
|
NULL);
|
|
|
|
g_free (color);
|
|
}
|
|
|
|
GtkWidget *
|
|
_pika_prop_gui_new_color_to_alpha (GObject *config,
|
|
GParamSpec **param_specs,
|
|
guint n_param_specs,
|
|
GeglRectangle *area,
|
|
PikaContext *context,
|
|
PikaCreatePickerFunc create_picker_func,
|
|
PikaCreateControllerFunc create_controller_func,
|
|
gpointer creator)
|
|
{
|
|
GtkWidget *vbox;
|
|
GtkWidget *button;
|
|
GtkWidget *hbox;
|
|
GtkWidget *scale;
|
|
const gchar *label;
|
|
|
|
g_return_val_if_fail (G_IS_OBJECT (config), NULL);
|
|
g_return_val_if_fail (param_specs != NULL, NULL);
|
|
g_return_val_if_fail (n_param_specs > 0, NULL);
|
|
g_return_val_if_fail (PIKA_IS_CONTEXT (context), NULL);
|
|
|
|
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 4);
|
|
|
|
button = _pika_prop_gui_new_generic (config, param_specs, 1,
|
|
area, context, create_picker_func, NULL,
|
|
creator);
|
|
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
|
|
|
|
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
|
|
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
|
|
gtk_widget_show (hbox);
|
|
|
|
scale = pika_prop_widget_new (config, "transparency-threshold",
|
|
area, context, NULL, NULL, NULL, &label);
|
|
gtk_box_pack_start (GTK_BOX (hbox), scale, TRUE, TRUE, 0);
|
|
|
|
if (create_picker_func)
|
|
{
|
|
button = create_picker_func (creator,
|
|
"transparency-threshold",
|
|
PIKA_ICON_COLOR_PICKER_GRAY,
|
|
_("Pick farthest full-transparency color"),
|
|
/* pick_abyss = */ FALSE,
|
|
(PikaPickerCallback) threshold_picked,
|
|
config);
|
|
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
|
|
gtk_widget_show (button);
|
|
}
|
|
|
|
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
|
|
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
|
|
gtk_widget_show (hbox);
|
|
|
|
scale = pika_prop_widget_new (config, "opacity-threshold",
|
|
area, context, NULL, NULL, NULL, &label);
|
|
gtk_box_pack_start (GTK_BOX (hbox), scale, TRUE, TRUE, 0);
|
|
|
|
if (create_picker_func)
|
|
{
|
|
button = create_picker_func (creator,
|
|
"opacity-threshold",
|
|
PIKA_ICON_COLOR_PICKER_GRAY,
|
|
_("Pick nearest full-opacity color"),
|
|
/* pick_abyss = */ FALSE,
|
|
(PikaPickerCallback) threshold_picked,
|
|
config);
|
|
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
|
|
gtk_widget_show (button);
|
|
}
|
|
|
|
return vbox;
|
|
}
|
