357 lines
13 KiB
C
357 lines
13 KiB
C
/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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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 "libpikacolor/pikacolor.h"
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#include "libpikamath/pikamath.h"
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#include "libpikawidgets/pikawidgets.h"
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#include "widgets-types.h"
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#include "config/pikacoreconfig.h"
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#include "core/pika.h"
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#include "core/pikachannel-select.h"
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#include "core/pikacontainer.h"
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#include "core/pikaimage.h"
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#include "core/pikaimage-pick-color.h"
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#include "core/pikaselection.h"
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#include "core/pikatoolinfo.h"
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/* FIXME: #include "tools/tools-types.h" */
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#include "tools/tools-types.h"
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#include "tools/pikaregionselectoptions.h"
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#include "pikaselectioneditor.h"
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#include "pikadnd.h"
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#include "pikadocked.h"
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#include "pikamenufactory.h"
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#include "pikaview.h"
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#include "pikaviewrenderer.h"
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#include "pikawidgets-utils.h"
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#include "pika-intl.h"
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static void pika_selection_editor_docked_iface_init (PikaDockedInterface *iface);
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static void pika_selection_editor_constructed (GObject *object);
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static void pika_selection_editor_set_image (PikaImageEditor *editor,
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PikaImage *image);
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static void pika_selection_editor_set_context (PikaDocked *docked,
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PikaContext *context);
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static gboolean pika_selection_view_button_press (GtkWidget *widget,
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GdkEventButton *bevent,
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PikaSelectionEditor *editor);
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static void pika_selection_editor_drop_color (GtkWidget *widget,
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gint x,
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gint y,
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const PikaRGB *color,
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gpointer data);
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static void pika_selection_editor_mask_changed (PikaImage *image,
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PikaSelectionEditor *editor);
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G_DEFINE_TYPE_WITH_CODE (PikaSelectionEditor, pika_selection_editor,
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PIKA_TYPE_IMAGE_EDITOR,
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G_IMPLEMENT_INTERFACE (PIKA_TYPE_DOCKED,
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pika_selection_editor_docked_iface_init))
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#define parent_class pika_selection_editor_parent_class
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static PikaDockedInterface *parent_docked_iface = NULL;
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static void
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pika_selection_editor_class_init (PikaSelectionEditorClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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PikaImageEditorClass *image_editor_class = PIKA_IMAGE_EDITOR_CLASS (klass);
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object_class->constructed = pika_selection_editor_constructed;
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image_editor_class->set_image = pika_selection_editor_set_image;
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}
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static void
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pika_selection_editor_docked_iface_init (PikaDockedInterface *iface)
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{
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parent_docked_iface = g_type_interface_peek_parent (iface);
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if (! parent_docked_iface)
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parent_docked_iface = g_type_default_interface_peek (PIKA_TYPE_DOCKED);
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iface->set_context = pika_selection_editor_set_context;
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}
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static void
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pika_selection_editor_init (PikaSelectionEditor *editor)
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{
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GtkWidget *frame;
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frame = gtk_frame_new (NULL);
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gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
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gtk_box_pack_start (GTK_BOX (editor), frame, TRUE, TRUE, 0);
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gtk_widget_show (frame);
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editor->view = pika_view_new_by_types (NULL,
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PIKA_TYPE_VIEW,
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PIKA_TYPE_SELECTION,
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PIKA_VIEW_SIZE_HUGE,
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0, TRUE);
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pika_view_renderer_set_background (PIKA_VIEW (editor->view)->renderer,
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PIKA_ICON_TEXTURE);
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gtk_widget_set_size_request (editor->view,
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PIKA_VIEW_SIZE_HUGE, PIKA_VIEW_SIZE_HUGE);
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pika_view_set_expand (PIKA_VIEW (editor->view), TRUE);
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gtk_container_add (GTK_CONTAINER (frame), editor->view);
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gtk_widget_show (editor->view);
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g_signal_connect (editor->view, "button-press-event",
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G_CALLBACK (pika_selection_view_button_press),
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editor);
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pika_dnd_color_dest_add (editor->view,
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pika_selection_editor_drop_color,
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editor);
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gtk_widget_set_sensitive (GTK_WIDGET (editor), FALSE);
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}
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static void
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pika_selection_editor_constructed (GObject *object)
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{
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PikaSelectionEditor *editor = PIKA_SELECTION_EDITOR (object);
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G_OBJECT_CLASS (parent_class)->constructed (object);
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editor->all_button =
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pika_editor_add_action_button (PIKA_EDITOR (editor), "select",
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"select-all", NULL);
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editor->none_button =
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pika_editor_add_action_button (PIKA_EDITOR (editor), "select",
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"select-none", NULL);
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editor->invert_button =
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pika_editor_add_action_button (PIKA_EDITOR (editor), "select",
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"select-invert", NULL);
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editor->save_button =
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pika_editor_add_action_button (PIKA_EDITOR (editor), "select",
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"select-save", NULL);
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editor->path_button =
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pika_editor_add_action_button (PIKA_EDITOR (editor), "vectors",
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"vectors-selection-to-vectors",
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"vectors-selection-to-vectors-advanced",
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GDK_SHIFT_MASK,
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NULL);
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editor->stroke_button =
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pika_editor_add_action_button (PIKA_EDITOR (editor), "select",
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"select-stroke",
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"select-stroke-last-values",
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GDK_SHIFT_MASK,
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NULL);
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}
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static void
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pika_selection_editor_set_image (PikaImageEditor *image_editor,
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PikaImage *image)
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{
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PikaSelectionEditor *editor = PIKA_SELECTION_EDITOR (image_editor);
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if (image_editor->image)
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{
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g_signal_handlers_disconnect_by_func (image_editor->image,
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pika_selection_editor_mask_changed,
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editor);
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}
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PIKA_IMAGE_EDITOR_CLASS (parent_class)->set_image (image_editor, image);
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if (image)
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{
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g_signal_connect (image, "mask-changed",
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G_CALLBACK (pika_selection_editor_mask_changed),
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editor);
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pika_view_set_viewable (PIKA_VIEW (editor->view),
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PIKA_VIEWABLE (pika_image_get_mask (image)));
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}
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else
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{
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pika_view_set_viewable (PIKA_VIEW (editor->view), NULL);
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}
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}
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static void
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pika_selection_editor_set_context (PikaDocked *docked,
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PikaContext *context)
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{
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PikaSelectionEditor *editor = PIKA_SELECTION_EDITOR (docked);
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parent_docked_iface->set_context (docked, context);
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pika_view_renderer_set_context (PIKA_VIEW (editor->view)->renderer,
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context);
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}
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/* public functions */
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GtkWidget *
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pika_selection_editor_new (PikaMenuFactory *menu_factory)
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{
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g_return_val_if_fail (PIKA_IS_MENU_FACTORY (menu_factory), NULL);
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return g_object_new (PIKA_TYPE_SELECTION_EDITOR,
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"menu-factory", menu_factory,
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"menu-identifier", "<Selection>",
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"ui-path", "/selection-popup",
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NULL);
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}
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static gboolean
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pika_selection_view_button_press (GtkWidget *widget,
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GdkEventButton *bevent,
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PikaSelectionEditor *editor)
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{
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PikaImageEditor *image_editor = PIKA_IMAGE_EDITOR (editor);
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PikaViewRenderer *renderer;
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PikaToolInfo *tool_info;
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PikaSelectionOptions *sel_options;
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PikaRegionSelectOptions *options;
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PikaChannelOps operation;
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GList *drawables;
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gint x, y;
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PikaRGB color;
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if (! image_editor->image)
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return TRUE;
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renderer = PIKA_VIEW (editor->view)->renderer;
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tool_info = pika_get_tool_info (image_editor->image->pika,
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"pika-by-color-select-tool");
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if (! tool_info)
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return TRUE;
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sel_options = PIKA_SELECTION_OPTIONS (tool_info->tool_options);
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options = PIKA_REGION_SELECT_OPTIONS (tool_info->tool_options);
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drawables = pika_image_get_selected_drawables (image_editor->image);
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if (! drawables)
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return TRUE;
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operation = pika_modifiers_to_channel_op (bevent->state);
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x = pika_image_get_width (image_editor->image) * bevent->x / renderer->width;
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y = pika_image_get_height (image_editor->image) * bevent->y / renderer->height;
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if (pika_image_pick_color (image_editor->image, drawables, x, y,
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FALSE, options->sample_merged,
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FALSE, 0.0,
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NULL,
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NULL, &color))
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{
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pika_channel_select_by_color (pika_image_get_mask (image_editor->image),
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drawables,
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options->sample_merged,
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&color,
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options->threshold / 255.0,
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options->select_transparent,
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options->select_criterion,
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operation,
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sel_options->antialias,
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sel_options->feather,
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sel_options->feather_radius,
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sel_options->feather_radius);
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pika_image_flush (image_editor->image);
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}
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g_list_free (drawables);
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return TRUE;
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}
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static void
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pika_selection_editor_drop_color (GtkWidget *widget,
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gint x,
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gint y,
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const PikaRGB *color,
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gpointer data)
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{
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PikaImageEditor *editor = PIKA_IMAGE_EDITOR (data);
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PikaToolInfo *tool_info;
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PikaSelectionOptions *sel_options;
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PikaRegionSelectOptions *options;
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GList *drawables;
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if (! editor->image)
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return;
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tool_info = pika_get_tool_info (editor->image->pika,
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"pika-by-color-select-tool");
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if (! tool_info)
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return;
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sel_options = PIKA_SELECTION_OPTIONS (tool_info->tool_options);
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options = PIKA_REGION_SELECT_OPTIONS (tool_info->tool_options);
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drawables = pika_image_get_selected_drawables (editor->image);
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if (! drawables)
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return;
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pika_channel_select_by_color (pika_image_get_mask (editor->image),
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drawables,
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options->sample_merged,
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color,
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options->threshold / 255.0,
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options->select_transparent,
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options->select_criterion,
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sel_options->operation,
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sel_options->antialias,
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sel_options->feather,
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sel_options->feather_radius,
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sel_options->feather_radius);
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pika_image_flush (editor->image);
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g_list_free (drawables);
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}
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static void
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pika_selection_editor_mask_changed (PikaImage *image,
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PikaSelectionEditor *editor)
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{
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pika_view_renderer_invalidate (PIKA_VIEW (editor->view)->renderer);
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}
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