mirror of https://github.com/GNOME/gimp.git
144 lines
5.0 KiB
C
144 lines
5.0 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
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*
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* gimppropgui-color-to-alpha.c
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* Copyright (C) 2017 Ell
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libgimpmath/gimpmath.h"
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#include "libgimpwidgets/gimpwidgets.h"
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#include "propgui-types.h"
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#include "core/gimpcontext.h"
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#include "gimppropgui.h"
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#include "gimppropgui-color-to-alpha.h"
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#include "gimppropgui-generic.h"
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#include "gimp-intl.h"
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static void
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threshold_picked (GObject *config,
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gpointer identifier,
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gdouble x,
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gdouble y,
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const Babl *sample_format,
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GeglColor *picked_color)
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{
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GeglColor *color;
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gdouble threshold = 0.0;
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gdouble rgb[3];
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gdouble picked_rgb[3];
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g_object_get (config,
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"color", &color,
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NULL);
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gegl_color_get_pixel (color, babl_format ("R'G'B' double"), rgb);
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gegl_color_get_pixel (picked_color, babl_format ("R'G'B' double"),
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picked_rgb);
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threshold = MAX (threshold, fabs (picked_rgb[0] - rgb[0]));
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threshold = MAX (threshold, fabs (picked_rgb[1] - rgb[1]));
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threshold = MAX (threshold, fabs (picked_rgb[2] - rgb[2]));
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g_object_set (config,
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identifier, threshold,
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NULL);
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g_object_unref (color);
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}
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GtkWidget *
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_gimp_prop_gui_new_color_to_alpha (GObject *config,
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GParamSpec **param_specs,
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guint n_param_specs,
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GeglRectangle *area,
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GimpContext *context,
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GimpCreatePickerFunc create_picker_func,
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GimpCreateControllerFunc create_controller_func,
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gpointer creator)
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{
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GtkWidget *vbox;
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GtkWidget *button;
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GtkWidget *hbox;
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GtkWidget *scale;
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const gchar *label;
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g_return_val_if_fail (G_IS_OBJECT (config), NULL);
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g_return_val_if_fail (param_specs != NULL, NULL);
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g_return_val_if_fail (n_param_specs > 0, NULL);
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g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 4);
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button = _gimp_prop_gui_new_generic (config, param_specs, 1,
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area, context, create_picker_func, NULL,
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creator);
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gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
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hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
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gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
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gtk_widget_show (hbox);
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scale = gimp_prop_widget_new (config, "transparency-threshold",
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area, context, NULL, NULL, NULL, &label);
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gtk_box_pack_start (GTK_BOX (hbox), scale, TRUE, TRUE, 0);
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if (create_picker_func)
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{
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button = create_picker_func (creator,
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"transparency-threshold",
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GIMP_ICON_COLOR_PICKER_GRAY,
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_("Pick farthest full-transparency color"),
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/* pick_abyss = */ FALSE,
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(GimpPickerCallback) threshold_picked,
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config);
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gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
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gtk_widget_show (button);
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}
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hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
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gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
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gtk_widget_show (hbox);
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scale = gimp_prop_widget_new (config, "opacity-threshold",
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area, context, NULL, NULL, NULL, &label);
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gtk_box_pack_start (GTK_BOX (hbox), scale, TRUE, TRUE, 0);
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if (create_picker_func)
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{
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button = create_picker_func (creator,
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"opacity-threshold",
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GIMP_ICON_COLOR_PICKER_GRAY,
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_("Pick nearest full-opacity color"),
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/* pick_abyss = */ FALSE,
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(GimpPickerCallback) threshold_picked,
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config);
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gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
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gtk_widget_show (button);
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}
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return vbox;
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}
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