PIKApp/app/widgets/pikacolorselectorpalette.c

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2023-09-26 00:35:21 +02:00
/* 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 Peter Mattis and Spencer Kimball
*
* pikacolorselectorpalette.c
* Copyright (C) 2006 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 "libpikacolor/pikacolor.h"
#include "libpikawidgets/pikawidgets.h"
#include "widgets-types.h"
#include "core/pikacontext.h"
#include "core/pikapalette.h"
#include "pikacolorselectorpalette.h"
#include "pikahelp-ids.h"
#include "pikapaletteview.h"
#include "pikaviewrendererpalette.h"
#include "pika-intl.h"
static void pika_color_selector_palette_set_color (PikaColorSelector *selector,
const PikaRGB *rgb,
const PikaHSV *hsv);
static void pika_color_selector_palette_set_config (PikaColorSelector *selector,
PikaColorConfig *config);
G_DEFINE_TYPE (PikaColorSelectorPalette, pika_color_selector_palette,
PIKA_TYPE_COLOR_SELECTOR)
#define parent_class pika_color_selector_palette_parent_class
static void
pika_color_selector_palette_class_init (PikaColorSelectorPaletteClass *klass)
{
PikaColorSelectorClass *selector_class = PIKA_COLOR_SELECTOR_CLASS (klass);
selector_class->name = _("Palette");
selector_class->help_id = PIKA_HELP_COLORSELECTOR_PALETTE;
selector_class->icon_name = PIKA_ICON_PALETTE;
selector_class->set_color = pika_color_selector_palette_set_color;
selector_class->set_config = pika_color_selector_palette_set_config;
gtk_widget_class_set_css_name (GTK_WIDGET_CLASS (klass),
"PikaColorSelectorPalette");
}
static void
pika_color_selector_palette_init (PikaColorSelectorPalette *select)
{
}
static void
pika_color_selector_palette_set_color (PikaColorSelector *selector,
const PikaRGB *rgb,
const PikaHSV *hsv)
{
PikaColorSelectorPalette *select = PIKA_COLOR_SELECTOR_PALETTE (selector);
if (select->context)
{
PikaPalette *palette = pika_context_get_palette (select->context);
if (palette && pika_palette_get_n_colors (palette) > 0)
{
PikaPaletteEntry *entry;
entry = pika_palette_find_entry (palette, rgb,
PIKA_PALETTE_VIEW (select->view)->selected);
if (entry)
pika_palette_view_select_entry (PIKA_PALETTE_VIEW (select->view),
entry);
}
}
}
static void
pika_color_selector_palette_palette_changed (PikaContext *context,
PikaPalette *palette,
PikaColorSelectorPalette *select)
{
pika_view_set_viewable (PIKA_VIEW (select->view), PIKA_VIEWABLE (palette));
}
static void
pika_color_selector_palette_entry_clicked (PikaPaletteView *view,
PikaPaletteEntry *entry,
GdkModifierType state,
PikaColorSelector *selector)
{
selector->rgb = entry->color;
pika_rgb_to_hsv (&selector->rgb, &selector->hsv);
pika_color_selector_emit_color_changed (selector);
}
static void
pika_color_selector_palette_set_config (PikaColorSelector *selector,
PikaColorConfig *config)
{
PikaColorSelectorPalette *select = PIKA_COLOR_SELECTOR_PALETTE (selector);
if (select->context)
{
g_signal_handlers_disconnect_by_func (select->context,
pika_color_selector_palette_palette_changed,
select);
pika_view_renderer_set_context (PIKA_VIEW (select->view)->renderer,
NULL);
g_clear_object (&select->context);
}
if (config)
select->context = g_object_get_data (G_OBJECT (config), "pika-context");
if (select->context)
{
g_object_ref (select->context);
if (! select->view)
{
select->view = pika_view_new_full_by_types (select->context,
PIKA_TYPE_PALETTE_VIEW,
PIKA_TYPE_PALETTE,
100, 100, 0,
FALSE, TRUE, FALSE);
pika_view_set_expand (PIKA_VIEW (select->view), TRUE);
pika_view_renderer_palette_set_cell_size
(PIKA_VIEW_RENDERER_PALETTE (PIKA_VIEW (select->view)->renderer),
-1);
pika_view_renderer_palette_set_draw_grid
(PIKA_VIEW_RENDERER_PALETTE (PIKA_VIEW (select->view)->renderer),
TRUE);
gtk_box_pack_start (GTK_BOX (select), select->view, TRUE, TRUE, 0);
gtk_widget_show (select->view);
g_signal_connect (select->view, "entry-clicked",
G_CALLBACK (pika_color_selector_palette_entry_clicked),
select);
}
else
{
pika_view_renderer_set_context (PIKA_VIEW (select->view)->renderer,
select->context);
}
g_signal_connect_object (select->context, "palette-changed",
G_CALLBACK (pika_color_selector_palette_palette_changed),
select, 0);
pika_color_selector_palette_palette_changed (select->context,
pika_context_get_palette (select->context),
select);
}
}