PIKApp/app/widgets/pikacontrollerkeyboard.c

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2023-09-26 00:35:21 +02:00
/* 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) 1995-1997 Peter Mattis and Spencer Kimball
*
* pikacontrollerkeyboard.c
* Copyright (C) 2004-2015 Michael Natterer <mitch@gimp.org>
*
* 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 <gdk/gdkkeysyms.h>
#include "libpikawidgets/pikawidgets.h"
#include "widgets-types.h"
#include "pikacontrollerkeyboard.h"
#include "pikahelp-ids.h"
#include "pikawidgets-utils.h"
#include "pika-intl.h"
typedef struct _KeyboardEvent KeyboardEvent;
struct _KeyboardEvent
{
const guint keyval;
const gchar *modifier_string;
GdkModifierType modifiers;
const gchar *name;
const gchar *blurb;
};
static void pika_controller_keyboard_constructed (GObject *object);
static gint pika_controller_keyboard_get_n_events (PikaController *controller);
static const gchar * pika_controller_keyboard_get_event_name (PikaController *controller,
gint event_id);
static const gchar * pika_controller_keyboard_get_event_blurb (PikaController *controller,
gint event_id);
G_DEFINE_TYPE (PikaControllerKeyboard, pika_controller_keyboard,
PIKA_TYPE_CONTROLLER)
#define parent_class pika_controller_keyboard_parent_class
static KeyboardEvent keyboard_events[] =
{
{ GDK_KEY_Up, NULL, 0,
"cursor-up",
N_("Cursor Up") },
{ GDK_KEY_Up, "<Shift>", 0,
"cursor-up-shift",
N_("Cursor Up") },
{ GDK_KEY_Up, "<Primary>", 0,
"cursor-up-primary",
N_("Cursor Up") },
{ GDK_KEY_Up, "<Alt>", 0,
"cursor-up-alt",
N_("Cursor Up") },
{ GDK_KEY_Up, "<Shift><Primary>", 0,
"cursor-up-shift-primary",
N_("Cursor Up") },
{ GDK_KEY_Up, "<Shift><Alt>", 0,
"cursor-up-shift-alt",
N_("Cursor Up") },
{ GDK_KEY_Up, "<Primary><Alt>", 0,
"cursor-up-primary-alt",
N_("Cursor Up") },
{ GDK_KEY_Up, "<Shift><Primary><Alt>", 0,
"cursor-up-shift-primary-alt",
N_("Cursor Up") },
{ GDK_KEY_Down, NULL, 0,
"cursor-down",
N_("Cursor Down") },
{ GDK_KEY_Down, "<Shift>", 0,
"cursor-down-shift",
N_("Cursor Down") },
{ GDK_KEY_Down, "<Primary>", 0,
"cursor-down-primary",
N_("Cursor Down") },
{ GDK_KEY_Down, "<Alt>", 0,
"cursor-down-alt",
N_("Cursor Down") },
{ GDK_KEY_Down, "<Shift><Primary>", 0,
"cursor-down-shift-primary",
N_("Cursor Down") },
{ GDK_KEY_Down, "<Shift><Alt>", 0,
"cursor-down-shift-alt",
N_("Cursor Down") },
{ GDK_KEY_Down, "<Primary><Alt>", 0,
"cursor-down-primary-alt",
N_("Cursor Down") },
{ GDK_KEY_Down, "<Shift><Primary><Alt>", 0,
"cursor-down-shift-primary-alt",
N_("Cursor Down") },
{ GDK_KEY_Left, NULL, 0,
"cursor-left",
N_("Cursor Left") },
{ GDK_KEY_Left, "<Shift>", 0,
"cursor-left-shift",
N_("Cursor Left") },
{ GDK_KEY_Left, "<Primary>", 0,
"cursor-left-primary",
N_("Cursor Left") },
{ GDK_KEY_Left, "<Alt>", 0,
"cursor-left-alt",
N_("Cursor Left") },
{ GDK_KEY_Left, "<Shift><Primary>", 0,
"cursor-left-shift-primary",
N_("Cursor Left") },
{ GDK_KEY_Left, "<Shift><Alt>", 0,
"cursor-left-shift-alt",
N_("Cursor Left") },
{ GDK_KEY_Left, "<Primary><Alt>", 0,
"cursor-left-primary-alt",
N_("Cursor Left") },
{ GDK_KEY_Left, "<Shift><Primary><Alt>", 0,
"cursor-left-shift-primary-alt",
N_("Cursor Left") },
{ GDK_KEY_Right, NULL, 0,
"cursor-right",
N_("Cursor Right") },
{ GDK_KEY_Right, "<Shift>", 0,
"cursor-right-shift",
N_("Cursor Right") },
{ GDK_KEY_Right, "<Primary>", 0,
"cursor-right-primary",
N_("Cursor Right") },
{ GDK_KEY_Right, "<Alt>", 0,
"cursor-right-alt",
N_("Cursor Right") },
{ GDK_KEY_Right, "<Shift><Primary>", 0,
"cursor-right-shift-primary",
N_("Cursor Right") },
{ GDK_KEY_Right, "<Shift><Alt>", 0,
"cursor-right-shift-alt",
N_("Cursor Right") },
{ GDK_KEY_Right, "<Primary><Alt>", 0,
"cursor-right-primary-alt",
N_("Cursor Right") },
{ GDK_KEY_Right, "<Shift><Primary><Alt>", 0,
"cursor-right-shift-primary-alt",
N_("Cursor Right") }
};
static void
pika_controller_keyboard_class_init (PikaControllerKeyboardClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
PikaControllerClass *controller_class = PIKA_CONTROLLER_CLASS (klass);
object_class->constructed = pika_controller_keyboard_constructed;
controller_class->name = _("Keyboard");
controller_class->help_id = PIKA_HELP_CONTROLLER_KEYBOARD;
controller_class->icon_name = PIKA_ICON_CONTROLLER_KEYBOARD;
controller_class->get_n_events = pika_controller_keyboard_get_n_events;
controller_class->get_event_name = pika_controller_keyboard_get_event_name;
controller_class->get_event_blurb = pika_controller_keyboard_get_event_blurb;
}
static void
pika_controller_keyboard_init (PikaControllerKeyboard *keyboard)
{
static gboolean event_names_initialized = FALSE;
if (! event_names_initialized)
{
GdkKeymap *keymap = gdk_keymap_get_for_display (gdk_display_get_default ());
gint i;
for (i = 0; i < G_N_ELEMENTS (keyboard_events); i++)
{
KeyboardEvent *kevent = &keyboard_events[i];
if (kevent->modifier_string)
{
gtk_accelerator_parse (kevent->modifier_string, NULL,
&kevent->modifiers);
gdk_keymap_map_virtual_modifiers (keymap, &kevent->modifiers);
}
if (kevent->modifiers != 0)
{
kevent->blurb =
g_strdup_printf ("%s (%s)", gettext (kevent->blurb),
pika_get_mod_string (kevent->modifiers));
}
else
{
kevent->blurb = gettext (kevent->blurb);
}
}
event_names_initialized = TRUE;
}
}
static void
pika_controller_keyboard_constructed (GObject *object)
{
G_OBJECT_CLASS (parent_class)->constructed (object);
g_object_set (object,
"name", _("Keyboard Events"),
"state", _("Ready"),
NULL);
}
static gint
pika_controller_keyboard_get_n_events (PikaController *controller)
{
return G_N_ELEMENTS (keyboard_events);
}
static const gchar *
pika_controller_keyboard_get_event_name (PikaController *controller,
gint event_id)
{
if (event_id < 0 || event_id >= G_N_ELEMENTS (keyboard_events))
return NULL;
return keyboard_events[event_id].name;
}
static const gchar *
pika_controller_keyboard_get_event_blurb (PikaController *controller,
gint event_id)
{
if (event_id < 0 || event_id >= G_N_ELEMENTS (keyboard_events))
return NULL;
return keyboard_events[event_id].blurb;
}
gboolean
pika_controller_keyboard_key_press (PikaControllerKeyboard *keyboard,
const GdkEventKey *kevent)
{
gint i;
g_return_val_if_fail (PIKA_IS_CONTROLLER_KEYBOARD (keyboard), FALSE);
g_return_val_if_fail (kevent != NULL, FALSE);
/* start with the last event because the last ones in the
* up,down,left,right groups have the most keyboard modifiers
*/
for (i = G_N_ELEMENTS (keyboard_events) - 1; i >= 0; i--)
{
if (keyboard_events[i].keyval == kevent->keyval &&
(keyboard_events[i].modifiers & kevent->state) ==
keyboard_events[i].modifiers)
{
PikaControllerEvent controller_event;
PikaControllerEventTrigger *trigger;
trigger = (PikaControllerEventTrigger *) &controller_event;
trigger->type = PIKA_CONTROLLER_EVENT_TRIGGER;
trigger->source = PIKA_CONTROLLER (keyboard);
trigger->event_id = i;
return pika_controller_event (PIKA_CONTROLLER (keyboard),
&controller_event);
}
}
return FALSE;
}