474 lines
17 KiB
C
474 lines
17 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 "libpikawidgets/pikawidgets.h"
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#include "widgets-types.h"
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#include "core/pika.h"
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#include "core/pikacontext.h"
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#include "core/pikaimage.h"
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#include "core/pikaimage-colormap.h"
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#include "core/pikapalette.h"
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#include "core/pikaprojection.h"
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#include "pikacolordialog.h"
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#include "pikacolormapeditor.h"
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#include "pikacolormapselection.h"
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#include "pikadialogfactory.h"
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#include "pikadocked.h"
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#include "pikamenufactory.h"
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#include "pikawidgets-utils.h"
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#include "pika-intl.h"
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static void pika_colormap_editor_docked_iface_init (PikaDockedInterface *face);
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static void pika_colormap_editor_constructed (GObject *object);
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static void pika_colormap_editor_dispose (GObject *object);
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static void pika_colormap_editor_unmap (GtkWidget *widget);
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static void pika_colormap_editor_set_context (PikaDocked *docked,
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PikaContext *context);
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static void pika_colormap_editor_color_update (PikaColorDialog *dialog,
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const PikaRGB *color,
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PikaColorDialogState state,
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PikaColormapEditor *editor);
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static gboolean pika_colormap_editor_entry_button_press (GtkWidget *widget,
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GdkEvent *event,
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gpointer user_data);
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static gboolean pika_colormap_editor_entry_popup (GtkWidget *widget,
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gpointer user_data);
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static void pika_colormap_editor_color_clicked (PikaColormapEditor *editor,
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PikaPaletteEntry *entry,
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GdkModifierType state);
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static void pika_colormap_editor_notify_index (PikaColormapSelection *selection,
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const GParamSpec *pspec,
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PikaColormapEditor *editor);
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G_DEFINE_TYPE_WITH_CODE (PikaColormapEditor, pika_colormap_editor,
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PIKA_TYPE_IMAGE_EDITOR,
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G_IMPLEMENT_INTERFACE (PIKA_TYPE_DOCKED,
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pika_colormap_editor_docked_iface_init))
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#define parent_class pika_colormap_editor_parent_class
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static PikaDockedInterface *parent_docked_iface = NULL;
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static void
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pika_colormap_editor_class_init (PikaColormapEditorClass* klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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object_class->constructed = pika_colormap_editor_constructed;
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object_class->dispose = pika_colormap_editor_dispose;
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widget_class->unmap = pika_colormap_editor_unmap;
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}
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static void
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pika_colormap_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_colormap_editor_set_context;
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}
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static void
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pika_colormap_editor_init (PikaColormapEditor *editor)
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{
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}
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static void
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pika_colormap_editor_constructed (GObject *object)
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{
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PikaColormapEditor *editor = PIKA_COLORMAP_EDITOR (object);
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GdkModifierType extend_mask;
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GdkModifierType modify_mask;
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G_OBJECT_CLASS (parent_class)->constructed (object);
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/* Editor buttons. */
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extend_mask = gtk_widget_get_modifier_mask (GTK_WIDGET (object),
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GDK_MODIFIER_INTENT_EXTEND_SELECTION);
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modify_mask = gtk_widget_get_modifier_mask (GTK_WIDGET (object),
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GDK_MODIFIER_INTENT_MODIFY_SELECTION);
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pika_editor_add_action_button (PIKA_EDITOR (editor), "colormap",
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"colormap-edit-color",
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NULL);
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pika_editor_add_action_button (PIKA_EDITOR (editor), "colormap",
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"colormap-delete-color",
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NULL);
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pika_editor_add_action_button (PIKA_EDITOR (editor), "colormap",
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"colormap-add-color-from-fg",
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"colormap-add-color-from-bg",
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pika_get_toggle_behavior_mask (),
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NULL);
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pika_editor_add_action_button (PIKA_EDITOR (editor), "colormap",
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"colormap-selection-replace",
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"colormap-selection-add",
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extend_mask,
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"colormap-selection-subtract",
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modify_mask,
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"colormap-selection-intersect",
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extend_mask | modify_mask,
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NULL);
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}
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static void
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pika_colormap_editor_dispose (GObject *object)
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{
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PikaColormapEditor *editor = PIKA_COLORMAP_EDITOR (object);
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g_clear_pointer (&editor->color_dialog, gtk_widget_destroy);
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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pika_colormap_editor_unmap (GtkWidget *widget)
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{
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PikaColormapEditor *editor = PIKA_COLORMAP_EDITOR (widget);
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if (editor->color_dialog)
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gtk_widget_hide (editor->color_dialog);
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GTK_WIDGET_CLASS (parent_class)->unmap (widget);
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}
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static void
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pika_colormap_editor_set_context (PikaDocked *docked,
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PikaContext *context)
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{
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PikaColormapEditor *editor = PIKA_COLORMAP_EDITOR (docked);
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parent_docked_iface->set_context (docked, context);
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if (editor->selection)
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gtk_widget_destroy (editor->selection);
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editor->selection = NULL;
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/* Main selection widget. */
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if (context)
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{
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editor->selection = pika_colormap_selection_new (context);
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gtk_box_pack_start (GTK_BOX (editor), editor->selection, TRUE, TRUE, 0);
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gtk_widget_show (editor->selection);
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g_signal_connect_swapped (editor->selection, "color-clicked",
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G_CALLBACK (pika_colormap_editor_color_clicked),
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editor);
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g_signal_connect_swapped (editor->selection, "color-activated",
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G_CALLBACK (pika_colormap_editor_edit_color),
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editor);
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g_signal_connect (editor->selection, "button-press-event",
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G_CALLBACK (pika_colormap_editor_entry_button_press),
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editor);
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g_signal_connect (editor->selection, "popup-menu",
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G_CALLBACK (pika_colormap_editor_entry_popup),
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editor);
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g_signal_connect (editor->selection, "notify::index",
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G_CALLBACK (pika_colormap_editor_notify_index),
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editor);
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}
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}
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/* public functions */
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GtkWidget *
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pika_colormap_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_COLORMAP_EDITOR,
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"menu-factory", menu_factory,
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"menu-identifier", "<Colormap>",
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"ui-path", "/colormap-popup",
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NULL);
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}
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void
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pika_colormap_editor_edit_color (PikaColormapEditor *editor)
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{
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PikaImage *image;
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PikaRGB color;
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gchar *desc;
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gint index;
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g_return_if_fail (PIKA_IS_COLORMAP_EDITOR (editor));
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image = PIKA_IMAGE_EDITOR (editor)->image;
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index = pika_colormap_selection_get_index (PIKA_COLORMAP_SELECTION (editor->selection),
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NULL);
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if (index == -1)
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/* No colormap. */
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return;
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pika_image_get_colormap_entry (image, index, &color);
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desc = g_strdup_printf (_("Edit colormap entry #%d"), index);
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if (! editor->color_dialog)
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{
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editor->color_dialog =
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pika_color_dialog_new (PIKA_VIEWABLE (image),
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PIKA_IMAGE_EDITOR (editor)->context,
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FALSE,
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_("Edit Colormap Entry"),
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PIKA_ICON_COLORMAP,
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desc,
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GTK_WIDGET (editor),
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pika_dialog_factory_get_singleton (),
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"pika-colormap-editor-color-dialog",
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(const PikaRGB *) &color,
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TRUE, FALSE);
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g_signal_connect (editor->color_dialog, "destroy",
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G_CALLBACK (gtk_widget_destroyed),
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&editor->color_dialog);
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g_signal_connect (editor->color_dialog, "update",
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G_CALLBACK (pika_colormap_editor_color_update),
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editor);
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}
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else
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{
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pika_viewable_dialog_set_viewables (PIKA_VIEWABLE_DIALOG (editor->color_dialog),
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g_list_prepend (NULL, image),
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PIKA_IMAGE_EDITOR (editor)->context);
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g_object_set (editor->color_dialog, "description", desc, NULL);
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pika_color_dialog_set_color (PIKA_COLOR_DIALOG (editor->color_dialog),
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&color);
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if (! gtk_widget_get_visible (editor->color_dialog))
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pika_dialog_factory_position_dialog (pika_dialog_factory_get_singleton (),
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"pika-colormap-editor-color-dialog",
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editor->color_dialog,
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pika_widget_get_monitor (GTK_WIDGET (editor)));
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}
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g_free (desc);
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gtk_window_present (GTK_WINDOW (editor->color_dialog));
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}
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void
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pika_colormap_editor_delete_color (PikaColormapEditor *editor)
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{
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PikaColormapSelection *selection;
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PikaImage *image;
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gint index;
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g_return_if_fail (PIKA_IS_COLORMAP_EDITOR (editor));
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g_return_if_fail (pika_colormap_editor_is_color_deletable (editor));
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image = PIKA_IMAGE_EDITOR (editor)->image;
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selection = PIKA_COLORMAP_SELECTION (editor->selection);
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index = pika_colormap_selection_get_index (selection, NULL);
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pika_image_delete_colormap_entry (image, index, TRUE);
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}
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gboolean
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pika_colormap_editor_is_color_deletable (PikaColormapEditor *editor)
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{
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PikaColormapSelection *selection;
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PikaImage *image;
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gint index;
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g_return_val_if_fail (PIKA_IS_COLORMAP_EDITOR (editor), FALSE);
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image = PIKA_IMAGE_EDITOR (editor)->image;
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selection = PIKA_COLORMAP_SELECTION (editor->selection);
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index = pika_colormap_selection_get_index (selection, NULL);
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if (index == -1)
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/* No colormap. */
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return FALSE;
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else
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return ! pika_image_colormap_is_index_used (image, index);
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}
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gint
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pika_colormap_editor_get_index (PikaColormapEditor *editor,
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const PikaRGB *search)
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{
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g_return_val_if_fail (PIKA_IS_COLORMAP_EDITOR (editor), 0);
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return pika_colormap_selection_get_index (PIKA_COLORMAP_SELECTION (editor->selection), search);
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}
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gboolean
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pika_colormap_editor_set_index (PikaColormapEditor *editor,
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gint index,
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PikaRGB *color)
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{
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g_return_val_if_fail (PIKA_IS_COLORMAP_EDITOR (editor), FALSE);
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return pika_colormap_selection_set_index (PIKA_COLORMAP_SELECTION (editor->selection), index, color);
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}
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gint
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pika_colormap_editor_max_index (PikaColormapEditor *editor)
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{
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g_return_val_if_fail (PIKA_IS_COLORMAP_EDITOR (editor), -1);
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return pika_colormap_selection_max_index (PIKA_COLORMAP_SELECTION (editor->selection));
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}
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static void
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pika_colormap_editor_color_update (PikaColorDialog *dialog,
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const PikaRGB *color,
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PikaColorDialogState state,
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PikaColormapEditor *editor)
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{
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PikaImageEditor *image_editor = PIKA_IMAGE_EDITOR (editor);
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PikaImage *image = image_editor->image;
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gboolean push_undo = FALSE;
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switch (state)
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{
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case PIKA_COLOR_DIALOG_OK:
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push_undo = TRUE;
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if (state & pika_get_toggle_behavior_mask ())
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pika_context_set_background (image_editor->context, color);
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else
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pika_context_set_foreground (image_editor->context, color);
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/* Fall through */
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case PIKA_COLOR_DIALOG_CANCEL:
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gtk_widget_hide (editor->color_dialog);
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break;
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case PIKA_COLOR_DIALOG_UPDATE:
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break;
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}
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if (image)
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{
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gint col_index;
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col_index = pika_colormap_selection_get_index (PIKA_COLORMAP_SELECTION (editor->selection),
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NULL);
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if (push_undo)
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{
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PikaRGB old_color;
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pika_color_selection_get_old_color (
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PIKA_COLOR_SELECTION (dialog->selection), &old_color);
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/* Restore old color for undo */
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pika_image_set_colormap_entry (image, col_index, &old_color,
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FALSE);
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}
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pika_image_set_colormap_entry (image, col_index, color,
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push_undo);
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if (push_undo)
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pika_image_flush (image);
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else
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pika_projection_flush (pika_image_get_projection (image));
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}
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}
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static gboolean
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pika_colormap_editor_entry_button_press (GtkWidget *widget,
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GdkEvent *event,
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gpointer user_data)
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{
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if (gdk_event_triggers_context_menu (event))
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{
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pika_editor_popup_menu_at_pointer (PIKA_EDITOR (user_data), event);
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return GDK_EVENT_STOP;
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}
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return GDK_EVENT_PROPAGATE;
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}
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static gboolean
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pika_colormap_editor_entry_popup (GtkWidget *widget,
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gpointer user_data)
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{
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PikaColormapEditor *editor = PIKA_COLORMAP_EDITOR (user_data);
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PikaColormapSelection *selection = PIKA_COLORMAP_SELECTION (widget);
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PikaPaletteEntry *selected;
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GdkRectangle rect;
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selected = pika_colormap_selection_get_selected_entry (selection);
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if (!selected)
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return GDK_EVENT_PROPAGATE;
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pika_colormap_selection_get_entry_rect (selection, selected, &rect);
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return pika_editor_popup_menu_at_rect (PIKA_EDITOR (editor),
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gtk_widget_get_window (widget),
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&rect, GDK_GRAVITY_CENTER, GDK_GRAVITY_NORTH_WEST,
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NULL);
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}
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static void
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pika_colormap_editor_color_clicked (PikaColormapEditor *editor,
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PikaPaletteEntry *entry,
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GdkModifierType state)
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{
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PikaImageEditor *image_editor = PIKA_IMAGE_EDITOR (editor);
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if (state & pika_get_toggle_behavior_mask ())
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pika_context_set_background (image_editor->context, &entry->color);
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else
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pika_context_set_foreground (image_editor->context, &entry->color);
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}
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static void
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pika_colormap_editor_notify_index (PikaColormapSelection *selection,
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const GParamSpec *pspec,
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PikaColormapEditor *editor)
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{
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g_return_if_fail (PIKA_IS_COLORMAP_EDITOR (editor));
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pika_editor_set_action_sensitive (PIKA_EDITOR (editor), "colormap",
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"colormap-delete-color",
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pika_colormap_editor_is_color_deletable (editor),
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_("The color is used in this indexed image"));
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}
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