PIKApp/app/actions/colormap-commands.c

119 lines
3.6 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 Spencer Kimball and Peter Mattis
*
* 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 "actions-types.h"
#include "core/pikachannel-select.h"
#include "core/pikacontext.h"
#include "core/pikaimage.h"
#include "core/pikaimage-colormap.h"
#include "widgets/pikacolormapeditor.h"
#include "widgets/pikacolormapselection.h"
#include "actions.h"
#include "colormap-commands.h"
/* public functions */
void
colormap_edit_color_cmd_callback (PikaAction *action,
GVariant *value,
gpointer data)
{
PikaColormapEditor *editor = PIKA_COLORMAP_EDITOR (data);
pika_colormap_editor_edit_color (editor);
}
void
colormap_add_color_cmd_callback (PikaAction *action,
GVariant *value,
gpointer data)
{
PikaContext *context;
PikaImage *image;
gboolean background;
return_if_no_context (context, data);
return_if_no_image (image, data);
background = (gboolean) g_variant_get_int32 (value);
if (pika_image_get_colormap_size (image) < 256)
{
PikaRGB color;
if (background)
pika_context_get_background (context, &color);
else
pika_context_get_foreground (context, &color);
pika_image_add_colormap_entry (image, &color);
pika_image_flush (image);
}
}
void
colormap_to_selection_cmd_callback (PikaAction *action,
GVariant *value,
gpointer data)
{
PikaColormapSelection *selection;
PikaColormapEditor *editor;
PikaImage *image;
GList *drawables;
PikaChannelOps op;
gint col_index;
return_if_no_image (image, data);
editor = PIKA_COLORMAP_EDITOR (data);
selection = PIKA_COLORMAP_SELECTION (editor->selection);
col_index = pika_colormap_selection_get_index (selection, NULL);
op = (PikaChannelOps) g_variant_get_int32 (value);
drawables = pika_image_get_selected_drawables (image);
if (g_list_length (drawables) != 1)
{
/* We should not reach this anyway as colormap-actions.c normally takes
* care at making the action insensitive when the item selection is wrong.
*/
g_warning ("This action requires exactly one selected drawable.");
g_list_free (drawables);
return;
}
pika_channel_select_by_index (pika_image_get_mask (image),
drawables->data,
col_index, op,
FALSE, 0.0, 0.0);
g_list_free (drawables);
pika_image_flush (image);
}