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gimp/app/widgets/gimpsymmetryeditor.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpsymmetryeditor.c
* Copyright (C) 2015 Jehan <jehan@girinstud.io>
*
* 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 "libgimpwidgets/gimpwidgets.h"
#include "propgui/propgui-types.h" /* ugly, but what the heck */
#include "core/gimpimage.h"
#include "core/gimpimage-symmetry.h"
#include "core/gimpsymmetry.h"
#include "propgui/gimppropgui.h"
#include "gimpmenufactory.h"
#include "gimpsymmetryeditor.h"
#include "gimp-intl.h"
struct _GimpSymmetryEditorPrivate
{
GimpContext *context;
GtkWidget *menu;
GtkWidget *options_vbox;
};
static void gimp_symmetry_editor_set_image (GimpImageEditor *editor,
GimpImage *image);
/* Signal handlers on the contextual image. */
static void gimp_symmetry_editor_symmetry_notify (GimpImage *image,
GParamSpec *pspec,
GimpSymmetryEditor *editor);
/* Signal handlers on the symmetry. */
static void gimp_symmetry_editor_symmetry_updated (GimpSymmetry *symmetry,
GimpImage *image,
GimpSymmetryEditor *editor);
/* Private functions. */
static void gimp_symmetry_editor_set_options (GimpSymmetryEditor *editor,
GimpSymmetry *symmetry);
G_DEFINE_TYPE_WITH_PRIVATE (GimpSymmetryEditor, gimp_symmetry_editor,
GIMP_TYPE_IMAGE_EDITOR)
#define parent_class gimp_symmetry_editor_parent_class
static void
gimp_symmetry_editor_class_init (GimpSymmetryEditorClass *klass)
{
GimpImageEditorClass *image_editor_class = GIMP_IMAGE_EDITOR_CLASS (klass);
image_editor_class->set_image = gimp_symmetry_editor_set_image;
}
static void
gimp_symmetry_editor_init (GimpSymmetryEditor *editor)
{
GtkWidget *scrolled_window;
GtkWidget *viewport;
editor->p = gimp_symmetry_editor_get_instance_private (editor);
gtk_widget_set_size_request (GTK_WIDGET (editor), -1, 200);
scrolled_window = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_box_pack_start (GTK_BOX (editor), scrolled_window, TRUE, TRUE, 0);
gtk_widget_show (scrolled_window);
viewport = gtk_viewport_new (NULL, NULL);
gtk_container_add (GTK_CONTAINER (scrolled_window), viewport);
gtk_widget_show (viewport);
editor->p->options_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
g_object_set (editor->p->options_vbox, "valign", GTK_ALIGN_START, NULL);
gtk_container_set_border_width (GTK_CONTAINER (editor->p->options_vbox), 2);
gtk_container_add (GTK_CONTAINER (viewport), editor->p->options_vbox);
gtk_widget_show (editor->p->options_vbox);
}
static void
gimp_symmetry_editor_set_image (GimpImageEditor *image_editor,
GimpImage *image)
{
GimpSymmetryEditor *editor = GIMP_SYMMETRY_EDITOR (image_editor);
if (image_editor->image)
{
g_signal_handlers_disconnect_by_func (image_editor->image,
G_CALLBACK (gimp_symmetry_editor_symmetry_notify),
editor);
}
GIMP_IMAGE_EDITOR_CLASS (parent_class)->set_image (image_editor, image);
/* Destroy the previous menu. */
if (editor->p->menu)
{
gtk_widget_destroy (editor->p->menu);
editor->p->menu = NULL;
}
if (image_editor->image)
{
GtkListStore *store;
GtkTreeIter iter;
GList *syms;
GList *sym_iter;
GimpSymmetry *symmetry;
store = gimp_int_store_new ();
/* The menu of available symmetries. */
syms = gimp_image_symmetry_list ();
for (sym_iter = syms; sym_iter; sym_iter = g_list_next (sym_iter))
{
GimpSymmetryClass *klass;
GType type;
type = (GType) sym_iter->data;
klass = g_type_class_ref (type);
gtk_list_store_prepend (store, &iter);
gtk_list_store_set (store, &iter,
GIMP_INT_STORE_LABEL,
klass->label,
GIMP_INT_STORE_USER_DATA,
sym_iter->data,
-1);
g_type_class_unref (klass);
}
g_list_free (syms);
gtk_list_store_prepend (store, &iter);
gtk_list_store_set (store, &iter,
GIMP_INT_STORE_LABEL, _("None"),
GIMP_INT_STORE_USER_DATA, GIMP_TYPE_SYMMETRY,
-1);
editor->p->menu =
gimp_prop_pointer_combo_box_new (G_OBJECT (image_editor->image),
"symmetry",
GIMP_INT_STORE (store));
g_object_unref (store);
gimp_int_combo_box_set_label (GIMP_INT_COMBO_BOX (editor->p->menu),
_("Symmetry"));
g_object_set (editor->p->menu, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
gtk_box_pack_start (GTK_BOX (editor), editor->p->menu,
FALSE, FALSE, 0);
gtk_box_reorder_child (GTK_BOX (editor), editor->p->menu, 0);
gtk_widget_show (editor->p->menu);
/* Connect to symmetry change. */
g_signal_connect (image_editor->image, "notify::symmetry",
G_CALLBACK (gimp_symmetry_editor_symmetry_notify),
editor);
/* Update the symmetry options. */
symmetry = gimp_image_get_active_symmetry (image_editor->image);
gimp_symmetry_editor_set_options (editor, symmetry);
}
}
static void
gimp_symmetry_editor_symmetry_notify (GimpImage *image,
GParamSpec *pspec,
GimpSymmetryEditor *editor)
{
GimpSymmetry *symmetry = NULL;
if (image)
{
symmetry = gimp_image_get_active_symmetry (image);
if (symmetry)
g_signal_connect (symmetry, "gui-param-changed",
G_CALLBACK (gimp_symmetry_editor_symmetry_updated),
editor);
}
gimp_symmetry_editor_set_options (editor, symmetry);
}
static void
gimp_symmetry_editor_symmetry_updated (GimpSymmetry *symmetry,
GimpImage *image,
GimpSymmetryEditor *editor)
{
if (image != gimp_image_editor_get_image (GIMP_IMAGE_EDITOR (editor)) ||
symmetry != gimp_image_get_active_symmetry (image))
{
g_signal_handlers_disconnect_by_func (symmetry,
gimp_symmetry_editor_symmetry_updated,
editor);
return;
}
gimp_symmetry_editor_set_options (editor, symmetry);
}
static void
gimp_symmetry_editor_set_options (GimpSymmetryEditor *editor,
GimpSymmetry *symmetry)
{
gtk_container_foreach (GTK_CONTAINER (editor->p->options_vbox),
(GtkCallback) gtk_widget_destroy, NULL);
if (symmetry && G_TYPE_FROM_INSTANCE (symmetry) != GIMP_TYPE_SYMMETRY)
{
GimpImageEditor *image_editor = GIMP_IMAGE_EDITOR (editor);
GimpImage *image = image_editor->image;
GtkWidget *gui;
gui = gimp_prop_gui_new (G_OBJECT (symmetry),
GIMP_TYPE_SYMMETRY,
GIMP_SYMMETRY_PARAM_GUI,
GEGL_RECTANGLE (0, 0,
gimp_image_get_width (image),
gimp_image_get_height (image)),
GIMP_IMAGE_EDITOR (editor)->context,
NULL, NULL, NULL);
gtk_box_pack_start (GTK_BOX (editor->p->options_vbox), gui,
FALSE, FALSE, 0);
gtk_widget_show (gui);
}
}
/* public functions */
GtkWidget *
gimp_symmetry_editor_new (GimpMenuFactory *menu_factory)
{
g_return_val_if_fail (GIMP_IS_MENU_FACTORY (menu_factory), NULL);
return g_object_new (GIMP_TYPE_SYMMETRY_EDITOR,
"menu-factory", menu_factory,
NULL);
}
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