PIKApp/app/widgets/pikaselectioneditor.c

357 lines
13 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 "libpikacolor/pikacolor.h"
#include "libpikamath/pikamath.h"
#include "libpikawidgets/pikawidgets.h"
#include "widgets-types.h"
#include "config/pikacoreconfig.h"
#include "core/pika.h"
#include "core/pikachannel-select.h"
#include "core/pikacontainer.h"
#include "core/pikaimage.h"
#include "core/pikaimage-pick-color.h"
#include "core/pikaselection.h"
#include "core/pikatoolinfo.h"
/* FIXME: #include "tools/tools-types.h" */
#include "tools/tools-types.h"
#include "tools/pikaregionselectoptions.h"
#include "pikaselectioneditor.h"
#include "pikadnd.h"
#include "pikadocked.h"
#include "pikamenufactory.h"
#include "pikaview.h"
#include "pikaviewrenderer.h"
#include "pikawidgets-utils.h"
#include "pika-intl.h"
static void pika_selection_editor_docked_iface_init (PikaDockedInterface *iface);
static void pika_selection_editor_constructed (GObject *object);
static void pika_selection_editor_set_image (PikaImageEditor *editor,
PikaImage *image);
static void pika_selection_editor_set_context (PikaDocked *docked,
PikaContext *context);
static gboolean pika_selection_view_button_press (GtkWidget *widget,
GdkEventButton *bevent,
PikaSelectionEditor *editor);
static void pika_selection_editor_drop_color (GtkWidget *widget,
gint x,
gint y,
const PikaRGB *color,
gpointer data);
static void pika_selection_editor_mask_changed (PikaImage *image,
PikaSelectionEditor *editor);
G_DEFINE_TYPE_WITH_CODE (PikaSelectionEditor, pika_selection_editor,
PIKA_TYPE_IMAGE_EDITOR,
G_IMPLEMENT_INTERFACE (PIKA_TYPE_DOCKED,
pika_selection_editor_docked_iface_init))
#define parent_class pika_selection_editor_parent_class
static PikaDockedInterface *parent_docked_iface = NULL;
static void
pika_selection_editor_class_init (PikaSelectionEditorClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
PikaImageEditorClass *image_editor_class = PIKA_IMAGE_EDITOR_CLASS (klass);
object_class->constructed = pika_selection_editor_constructed;
image_editor_class->set_image = pika_selection_editor_set_image;
}
static void
pika_selection_editor_docked_iface_init (PikaDockedInterface *iface)
{
parent_docked_iface = g_type_interface_peek_parent (iface);
if (! parent_docked_iface)
parent_docked_iface = g_type_default_interface_peek (PIKA_TYPE_DOCKED);
iface->set_context = pika_selection_editor_set_context;
}
static void
pika_selection_editor_init (PikaSelectionEditor *editor)
{
GtkWidget *frame;
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (editor), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
editor->view = pika_view_new_by_types (NULL,
PIKA_TYPE_VIEW,
PIKA_TYPE_SELECTION,
PIKA_VIEW_SIZE_HUGE,
0, TRUE);
pika_view_renderer_set_background (PIKA_VIEW (editor->view)->renderer,
PIKA_ICON_TEXTURE);
gtk_widget_set_size_request (editor->view,
PIKA_VIEW_SIZE_HUGE, PIKA_VIEW_SIZE_HUGE);
pika_view_set_expand (PIKA_VIEW (editor->view), TRUE);
gtk_container_add (GTK_CONTAINER (frame), editor->view);
gtk_widget_show (editor->view);
g_signal_connect (editor->view, "button-press-event",
G_CALLBACK (pika_selection_view_button_press),
editor);
pika_dnd_color_dest_add (editor->view,
pika_selection_editor_drop_color,
editor);
gtk_widget_set_sensitive (GTK_WIDGET (editor), FALSE);
}
static void
pika_selection_editor_constructed (GObject *object)
{
PikaSelectionEditor *editor = PIKA_SELECTION_EDITOR (object);
G_OBJECT_CLASS (parent_class)->constructed (object);
editor->all_button =
pika_editor_add_action_button (PIKA_EDITOR (editor), "select",
"select-all", NULL);
editor->none_button =
pika_editor_add_action_button (PIKA_EDITOR (editor), "select",
"select-none", NULL);
editor->invert_button =
pika_editor_add_action_button (PIKA_EDITOR (editor), "select",
"select-invert", NULL);
editor->save_button =
pika_editor_add_action_button (PIKA_EDITOR (editor), "select",
"select-save", NULL);
editor->path_button =
pika_editor_add_action_button (PIKA_EDITOR (editor), "vectors",
"vectors-selection-to-vectors",
"vectors-selection-to-vectors-advanced",
GDK_SHIFT_MASK,
NULL);
editor->stroke_button =
pika_editor_add_action_button (PIKA_EDITOR (editor), "select",
"select-stroke",
"select-stroke-last-values",
GDK_SHIFT_MASK,
NULL);
}
static void
pika_selection_editor_set_image (PikaImageEditor *image_editor,
PikaImage *image)
{
PikaSelectionEditor *editor = PIKA_SELECTION_EDITOR (image_editor);
if (image_editor->image)
{
g_signal_handlers_disconnect_by_func (image_editor->image,
pika_selection_editor_mask_changed,
editor);
}
PIKA_IMAGE_EDITOR_CLASS (parent_class)->set_image (image_editor, image);
if (image)
{
g_signal_connect (image, "mask-changed",
G_CALLBACK (pika_selection_editor_mask_changed),
editor);
pika_view_set_viewable (PIKA_VIEW (editor->view),
PIKA_VIEWABLE (pika_image_get_mask (image)));
}
else
{
pika_view_set_viewable (PIKA_VIEW (editor->view), NULL);
}
}
static void
pika_selection_editor_set_context (PikaDocked *docked,
PikaContext *context)
{
PikaSelectionEditor *editor = PIKA_SELECTION_EDITOR (docked);
parent_docked_iface->set_context (docked, context);
pika_view_renderer_set_context (PIKA_VIEW (editor->view)->renderer,
context);
}
/* public functions */
GtkWidget *
pika_selection_editor_new (PikaMenuFactory *menu_factory)
{
g_return_val_if_fail (PIKA_IS_MENU_FACTORY (menu_factory), NULL);
return g_object_new (PIKA_TYPE_SELECTION_EDITOR,
"menu-factory", menu_factory,
"menu-identifier", "<Selection>",
"ui-path", "/selection-popup",
NULL);
}
static gboolean
pika_selection_view_button_press (GtkWidget *widget,
GdkEventButton *bevent,
PikaSelectionEditor *editor)
{
PikaImageEditor *image_editor = PIKA_IMAGE_EDITOR (editor);
PikaViewRenderer *renderer;
PikaToolInfo *tool_info;
PikaSelectionOptions *sel_options;
PikaRegionSelectOptions *options;
PikaChannelOps operation;
GList *drawables;
gint x, y;
PikaRGB color;
if (! image_editor->image)
return TRUE;
renderer = PIKA_VIEW (editor->view)->renderer;
tool_info = pika_get_tool_info (image_editor->image->pika,
"pika-by-color-select-tool");
if (! tool_info)
return TRUE;
sel_options = PIKA_SELECTION_OPTIONS (tool_info->tool_options);
options = PIKA_REGION_SELECT_OPTIONS (tool_info->tool_options);
drawables = pika_image_get_selected_drawables (image_editor->image);
if (! drawables)
return TRUE;
operation = pika_modifiers_to_channel_op (bevent->state);
x = pika_image_get_width (image_editor->image) * bevent->x / renderer->width;
y = pika_image_get_height (image_editor->image) * bevent->y / renderer->height;
if (pika_image_pick_color (image_editor->image, drawables, x, y,
FALSE, options->sample_merged,
FALSE, 0.0,
NULL,
NULL, &color))
{
pika_channel_select_by_color (pika_image_get_mask (image_editor->image),
drawables,
options->sample_merged,
&color,
options->threshold / 255.0,
options->select_transparent,
options->select_criterion,
operation,
sel_options->antialias,
sel_options->feather,
sel_options->feather_radius,
sel_options->feather_radius);
pika_image_flush (image_editor->image);
}
g_list_free (drawables);
return TRUE;
}
static void
pika_selection_editor_drop_color (GtkWidget *widget,
gint x,
gint y,
const PikaRGB *color,
gpointer data)
{
PikaImageEditor *editor = PIKA_IMAGE_EDITOR (data);
PikaToolInfo *tool_info;
PikaSelectionOptions *sel_options;
PikaRegionSelectOptions *options;
GList *drawables;
if (! editor->image)
return;
tool_info = pika_get_tool_info (editor->image->pika,
"pika-by-color-select-tool");
if (! tool_info)
return;
sel_options = PIKA_SELECTION_OPTIONS (tool_info->tool_options);
options = PIKA_REGION_SELECT_OPTIONS (tool_info->tool_options);
drawables = pika_image_get_selected_drawables (editor->image);
if (! drawables)
return;
pika_channel_select_by_color (pika_image_get_mask (editor->image),
drawables,
options->sample_merged,
color,
options->threshold / 255.0,
options->select_transparent,
options->select_criterion,
sel_options->operation,
sel_options->antialias,
sel_options->feather,
sel_options->feather_radius,
sel_options->feather_radius);
pika_image_flush (editor->image);
g_list_free (drawables);
}
static void
pika_selection_editor_mask_changed (PikaImage *image,
PikaSelectionEditor *editor)
{
pika_view_renderer_invalidate (PIKA_VIEW (editor->view)->renderer);
}