291 lines
8.8 KiB
C
291 lines
8.8 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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* pikatoggleaction.c
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* Copyright (C) 2004 Michael Natterer <mitch@gimp.org>
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* Copyright (C) 2008 Sven Neumann <sven@gimp.org>
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* Copyright (C) 2023 Jehan
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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 "libpikabase/pikabase.h"
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#include "libpikawidgets/pikawidgets.h"
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#include "widgets-types.h"
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#include "pikaaction.h"
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#include "pikaaction-history.h"
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#include "pikatoggleaction.h"
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enum
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{
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PROP_0,
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PROP_ACTIVE,
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};
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enum
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{
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TOGGLED,
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LAST_SIGNAL
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};
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struct _PikaToggleActionPrivate
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{
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gboolean active;
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};
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static void pika_toggle_action_g_action_iface_init (GActionInterface *iface);
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static void pika_toggle_action_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void pika_toggle_action_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static gboolean pika_toggle_action_get_enabled (GAction *action);
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static const GVariantType *
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pika_toggle_action_get_state_type (GAction *action);
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static GVariant *
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pika_toggle_action_get_state (GAction *action);
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static void pika_toggle_action_activate (GAction *action,
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GVariant *parameter);
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static gboolean pika_toggle_action_real_toggle (PikaToggleAction *action);
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static void pika_toggle_action_toggle (PikaToggleAction *action);
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G_DEFINE_TYPE_WITH_CODE (PikaToggleAction, pika_toggle_action,
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PIKA_TYPE_ACTION_IMPL,
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G_ADD_PRIVATE (PikaToggleAction)
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G_IMPLEMENT_INTERFACE (G_TYPE_ACTION, pika_toggle_action_g_action_iface_init))
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#define parent_class pika_toggle_action_parent_class
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static guint pika_toggle_action_signals[LAST_SIGNAL] = { 0 };
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static void
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pika_toggle_action_class_init (PikaToggleActionClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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PikaToggleActionClass *toggle_class = PIKA_TOGGLE_ACTION_CLASS (klass);
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pika_toggle_action_signals[TOGGLED] =
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g_signal_new ("toggled",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (PikaToggleActionClass, toggled),
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NULL, NULL, NULL,
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G_TYPE_NONE, 0);
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object_class->get_property = pika_toggle_action_get_property;
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object_class->set_property = pika_toggle_action_set_property;
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toggle_class->toggle = pika_toggle_action_real_toggle;
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/**
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* PikaToggleAction:active:
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*
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* If @action state is currently active.
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*
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* Calls to g_action_activate() will flip this property value.
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**/
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g_object_class_install_property (object_class, PROP_ACTIVE,
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g_param_spec_boolean ("active",
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"Active state",
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"If the action state is active",
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TRUE,
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PIKA_PARAM_READWRITE));
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}
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static void
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pika_toggle_action_g_action_iface_init (GActionInterface *iface)
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{
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iface->get_name = (const gchar* (*) (GAction*)) pika_action_get_name;
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iface->activate = pika_toggle_action_activate;
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iface->get_enabled = pika_toggle_action_get_enabled;
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iface->get_state_type = pika_toggle_action_get_state_type;
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iface->get_state = pika_toggle_action_get_state;
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}
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static void
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pika_toggle_action_init (PikaToggleAction *action)
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{
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action->priv = pika_toggle_action_get_instance_private (action);
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}
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static void
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pika_toggle_action_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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PikaToggleAction *action = PIKA_TOGGLE_ACTION (object);
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switch (prop_id)
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{
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case PROP_ACTIVE:
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g_value_set_boolean (value, pika_toggle_action_get_active (action));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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pika_toggle_action_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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PikaToggleAction *action = PIKA_TOGGLE_ACTION (object);
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switch (prop_id)
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{
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case PROP_ACTIVE:
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pika_toggle_action_set_active (action, g_value_get_boolean (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static gboolean
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pika_toggle_action_get_enabled (GAction *action)
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{
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return pika_action_is_sensitive (PIKA_ACTION (action), NULL);
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}
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static const GVariantType *
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pika_toggle_action_get_state_type (GAction *action)
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{
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return G_VARIANT_TYPE_BOOLEAN;
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}
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static GVariant *
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pika_toggle_action_get_state (GAction *action)
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{
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GVariant *state;
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state = g_variant_new_boolean (PIKA_TOGGLE_ACTION (action)->priv->active);
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return g_variant_ref_sink (state);
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}
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static void
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pika_toggle_action_activate (GAction *action,
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GVariant *parameter)
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{
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pika_toggle_action_toggle (PIKA_TOGGLE_ACTION (action));
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}
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static gboolean
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pika_toggle_action_real_toggle (PikaToggleAction *action)
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{
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gboolean value = pika_toggle_action_get_active (action);
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action->priv->active = ! value;
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pika_action_emit_change_state (PIKA_ACTION (action),
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g_variant_new_boolean (! value));
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/* Toggling always works for the base class. */
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return TRUE;
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}
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static void
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pika_toggle_action_toggle (PikaToggleAction *action)
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{
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if (PIKA_TOGGLE_ACTION_GET_CLASS (action)->toggle != NULL &&
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PIKA_TOGGLE_ACTION_GET_CLASS (action)->toggle (action))
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{
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g_signal_emit (action, pika_toggle_action_signals[TOGGLED], 0);
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g_object_notify (G_OBJECT (action), "state");
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g_object_notify (G_OBJECT (action), "active");
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pika_action_history_action_activated (PIKA_ACTION (action));
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}
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}
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/* public functions */
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PikaAction *
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pika_toggle_action_new (const gchar *name,
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const gchar *label,
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const gchar *short_label,
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const gchar *tooltip,
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const gchar *icon_name,
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const gchar *help_id,
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PikaContext *context)
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{
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PikaAction *action;
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action = g_object_new (PIKA_TYPE_TOGGLE_ACTION,
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"name", name,
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"label", label,
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"short-label", short_label,
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"tooltip", tooltip,
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"icon-name", icon_name,
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"context", context,
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NULL);
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pika_action_set_help_id (PIKA_ACTION (action), help_id);
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return action;
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}
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void
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pika_toggle_action_set_active (PikaToggleAction *action,
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gboolean active)
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{
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if (action->priv->active != active)
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pika_toggle_action_toggle (action);
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}
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gboolean
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pika_toggle_action_get_active (PikaToggleAction *action)
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{
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return action->priv->active;
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}
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/* Protected functions. */
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void
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_pika_toggle_action_set_active (PikaToggleAction *action,
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gboolean active)
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{
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action->priv->active = active;
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}
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