PIKApp/app/widgets/pikaaccellabel.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 Spencer Kimball and Peter Mattis
*
* pikaaccellabel.c
* Copyright (C) 2020 Ell
*
* 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 "pikaaction.h"
#include "pikaaccellabel.h"
enum
{
PROP_0,
PROP_ACTION
};
struct _PikaAccelLabelPrivate
{
PikaAction *action;
};
/* local function prototypes */
static void pika_accel_label_dispose (GObject *object);
static void pika_accel_label_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void pika_accel_label_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void pika_accel_label_update (PikaAccelLabel *accel_label);
G_DEFINE_TYPE_WITH_PRIVATE (PikaAccelLabel, pika_accel_label, GTK_TYPE_LABEL)
#define parent_class pika_accel_label_parent_class
/* private functions */
static void
pika_accel_label_class_init (PikaAccelLabelClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = pika_accel_label_dispose;
object_class->get_property = pika_accel_label_get_property;
object_class->set_property = pika_accel_label_set_property;
g_object_class_install_property (object_class, PROP_ACTION,
g_param_spec_object ("action",
NULL, NULL,
PIKA_TYPE_ACTION,
PIKA_PARAM_READWRITE));
}
static void
pika_accel_label_init (PikaAccelLabel *accel_label)
{
accel_label->priv = pika_accel_label_get_instance_private (accel_label);
}
static void
pika_accel_label_dispose (GObject *object)
{
PikaAccelLabel *accel_label = PIKA_ACCEL_LABEL (object);
pika_accel_label_set_action (accel_label, NULL);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
pika_accel_label_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
PikaAccelLabel *accel_label = PIKA_ACCEL_LABEL (object);
switch (property_id)
{
case PROP_ACTION:
pika_accel_label_set_action (accel_label, g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
pika_accel_label_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
PikaAccelLabel *accel_label = PIKA_ACCEL_LABEL (object);
switch (property_id)
{
case PROP_ACTION:
g_value_set_object (value, accel_label->priv->action);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
pika_accel_label_update (PikaAccelLabel *accel_label)
{
gchar **accels;
gtk_label_set_label (GTK_LABEL (accel_label), NULL);
if (! accel_label->priv->action)
return;
accels = pika_action_get_display_accels (accel_label->priv->action);
if (accels && accels[0])
gtk_label_set_label (GTK_LABEL (accel_label), accels[0]);
g_strfreev (accels);
}
/* public functions */
GtkWidget *
pika_accel_label_new (PikaAction *action)
{
g_return_val_if_fail (action == NULL || PIKA_IS_ACTION (action), NULL);
return g_object_new (PIKA_TYPE_ACCEL_LABEL,
"action", action,
NULL);
}
void
pika_accel_label_set_action (PikaAccelLabel *accel_label,
PikaAction *action)
{
g_return_if_fail (PIKA_IS_ACCEL_LABEL (accel_label));
g_return_if_fail (action == NULL || PIKA_IS_ACTION (action));
if (action != accel_label->priv->action)
{
if (accel_label->priv->action)
g_signal_handlers_disconnect_by_func (accel_label->priv->action,
pika_accel_label_update,
accel_label);
g_set_object (&accel_label->priv->action, action);
if (accel_label->priv->action)
g_signal_connect_swapped (action, "accels-changed",
G_CALLBACK (pika_accel_label_update),
accel_label);
pika_accel_label_update (accel_label);
g_object_notify (G_OBJECT (accel_label), "action");
}
}
PikaAction *
pika_accel_label_get_action (PikaAccelLabel *accel_label)
{
g_return_val_if_fail (PIKA_IS_ACCEL_LABEL (accel_label), NULL);
return accel_label->priv->action;
}