PIKApp/app/widgets/pikamenubar.c

247 lines
7.7 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
*
* pikamenubar.c
* Copyright (C) 2023 Jehan
*
* 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 "libpikabase/pikabase.h"
#include "widgets-types.h"
#include "core/pika.h"
#include "pikaaction.h"
#include "pikamenu.h"
#include "pikamenubar.h"
#include "pikamenumodel.h"
#include "pikamenushell.h"
#include "pikaradioaction.h"
#include "pikauimanager.h"
#include "pikawidgets-utils.h"
/**
* PikaMenuBar:
*
* Our own menu bar widget.
*
* We cannot use the simpler gtk_application_set_menubar() because it lacks
* tooltip support and unfortunately GTK does not plan to implement this:
* https://gitlab.gnome.org/GNOME/gtk/-/issues/785
* This is why we need to implement our own PikaMenuBar subclass.
*/
struct _PikaMenuBarPrivate
{
GTree *menus;
};
/* local function prototypes */
static void pika_menu_bar_iface_init (PikaMenuShellInterface *iface);
static void pika_menu_bar_dispose (GObject *object);
static void pika_menu_bar_append (PikaMenuShell *shell,
PikaMenuModel *model);
static void pika_menu_bar_add_ui (PikaMenuShell *shell,
const gchar **paths,
const gchar *action_name,
gboolean top);
G_DEFINE_TYPE_WITH_CODE (PikaMenuBar, pika_menu_bar, GTK_TYPE_MENU_BAR,
G_ADD_PRIVATE (PikaMenuBar)
G_IMPLEMENT_INTERFACE (PIKA_TYPE_MENU_SHELL, pika_menu_bar_iface_init))
#define parent_class pika_menu_bar_parent_class
/* Class functions */
static void
pika_menu_bar_class_init (PikaMenuBarClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = pika_menu_bar_dispose;
object_class->get_property = pika_menu_shell_get_property;
object_class->set_property = pika_menu_shell_set_property;
pika_menu_shell_install_properties (object_class);
}
static void
pika_menu_bar_iface_init (PikaMenuShellInterface *iface)
{
iface->append = pika_menu_bar_append;
iface->add_ui = pika_menu_bar_add_ui;
}
static void
pika_menu_bar_init (PikaMenuBar *bar)
{
bar->priv = pika_menu_bar_get_instance_private (bar);
bar->priv->menus = g_tree_new_full ((GCompareDataFunc) g_strcmp0, NULL,
g_free, NULL);
pika_menu_shell_init (PIKA_MENU_SHELL (bar));
}
static void
pika_menu_bar_dispose (GObject *object)
{
PikaMenuBar *bar = PIKA_MENU_BAR (object);
g_clear_pointer (&bar->priv->menus, g_tree_unref);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
pika_menu_bar_append (PikaMenuShell *shell,
PikaMenuModel *model)
{
PikaMenuBar *bar = PIKA_MENU_BAR (shell);
PikaUIManager *manager = pika_menu_shell_get_manager (PIKA_MENU_SHELL (shell));
gint n_items;
g_return_if_fail (GTK_IS_CONTAINER (shell));
n_items = g_menu_model_get_n_items (G_MENU_MODEL (model));
for (gint i = 0; i < n_items; i++)
{
GMenuModel *subsection;
GMenuModel *submenu;
gchar *label = NULL;
gchar *action_name = NULL;
subsection = g_menu_model_get_item_link (G_MENU_MODEL (model), i, G_MENU_LINK_SECTION);
submenu = g_menu_model_get_item_link (G_MENU_MODEL (model), i, G_MENU_LINK_SUBMENU);
g_menu_model_get_item_attribute (G_MENU_MODEL (model), i, G_MENU_ATTRIBUTE_LABEL, "s", &label);
g_menu_model_get_item_attribute (G_MENU_MODEL (model), i, G_MENU_ATTRIBUTE_ACTION, "s", &action_name);
if (submenu != NULL)
{
GtkWidget *subcontainer;
GtkWidget *item;
g_return_if_fail (label != NULL);
/* I don't show the item on purpose because
* pika_menu_append() will show the parent item if any of
* the added actions are visible.
*/
item = gtk_menu_item_new_with_mnemonic (label);
gtk_container_add (GTK_CONTAINER (shell), item);
subcontainer = pika_menu_new (manager);
gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), subcontainer);
pika_menu_shell_append (PIKA_MENU_SHELL (subcontainer), PIKA_MENU_MODEL (submenu));
gtk_widget_show (subcontainer);
g_tree_insert (bar->priv->menus,
pika_utils_make_canonical_menu_label (label),
subcontainer);
}
else
{
if (subsection != NULL)
g_warning ("%s: unexpected subsection. Only menus are allowed in menu bar's root.",
G_STRFUNC);
if (action_name == NULL)
g_warning ("%s: missing action name. Only menus are allowed in menu bar's root.",
G_STRFUNC);
else
g_warning ("%s: unexpected action '%s'. Only menus are allowed in menu bar's root.",
G_STRFUNC, action_name);
}
g_free (label);
g_free (action_name);
g_clear_object (&submenu);
g_clear_object (&subsection);
}
}
static void
pika_menu_bar_add_ui (PikaMenuShell *shell,
const gchar **paths,
const gchar *action_name,
gboolean top)
{
PikaMenuBar *bar = PIKA_MENU_BAR (shell);
PikaUIManager *manager = pika_menu_shell_get_manager (PIKA_MENU_SHELL (shell));
g_return_if_fail (paths != NULL);
if (paths[0] == NULL)
{
g_warning ("%s: unexpected action '%s'. Only menus are allowed in menu bar's root.",
G_STRFUNC, action_name);
}
else
{
GtkWidget *menu = NULL;
menu = g_tree_lookup (bar->priv->menus, paths[0]);
if (menu == NULL)
{
GtkWidget *item;
item = gtk_menu_item_new_with_mnemonic (paths[0]);
gtk_container_add (GTK_CONTAINER (shell), item);
menu = pika_menu_new (manager);
gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), menu);
gtk_widget_show (menu);
g_tree_insert (bar->priv->menus, g_strdup (paths[0]), menu);
}
PIKA_MENU_SHELL_GET_INTERFACE (menu)->add_ui (PIKA_MENU_SHELL (menu),
paths + 1, action_name, top);
}
}
/* Public functions */
GtkWidget *
pika_menu_bar_new (PikaMenuModel *model,
PikaUIManager *manager)
{
g_return_val_if_fail (PIKA_IS_UI_MANAGER (manager) &&
G_IS_MENU_MODEL (model), NULL);
return g_object_new (PIKA_TYPE_MENU_BAR,
"model", model,
"manager", manager,
NULL);
}