* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
+#include "config.h"
#include "gtkaccellabel.h"
+#include "gtkmarshalers.h"
#include "gtkradiomenuitem.h"
+#include "gtkactivatable.h"
+#include "gtkprivate.h"
+#include "gtkintl.h"
+#include "a11y/gtkradiomenuitemaccessible.h"
+/**
+ * SECTION:gtkradiomenuitem
+ * @Short_description: A choice from multiple check menu items
+ * @Title: GtkRadioMenuItem
+ * @See_also: #GtkMenuItem, #GtkCheckMenuItem
+ *
+ * A radio menu item is a check menu item that belongs to a group. At each
+ * instant exactly one of the radio menu items from a group is selected.
+ *
+ * The group list does not need to be freed, as each #GtkRadioMenuItem will
+ * remove itself and its list item when it is destroyed.
+ *
+ * The correct way to create a group of radio menu items is approximatively
+ * this:
+ *
+ * <example>
+ * <title>How to create a group of radio menu items.</title>
+ * <programlisting>
+ * GSList *group = NULL;
+ * GtkWidget *item;
+ * gint i;
+ *
+ * for (i = 0; i < 5; i++)
+ * {
+ * item = gtk_radio_menu_item_new_with_label (group, "This is an example");
+ * group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (item));
+ * if (i == 1)
+ * gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (item), TRUE);
+ * }
+ * </programlisting>
+ * </example>
+ */
-static void gtk_radio_menu_item_class_init (GtkRadioMenuItemClass *klass);
-static void gtk_radio_menu_item_init (GtkRadioMenuItem *radio_menu_item);
-static void gtk_radio_menu_item_destroy (GtkObject *object);
-static void gtk_radio_menu_item_activate (GtkMenuItem *menu_item);
-
-static GtkCheckMenuItemClass *parent_class = NULL;
-GType
-gtk_radio_menu_item_get_type (void)
+struct _GtkRadioMenuItemPrivate
{
- static GType radio_menu_item_type = 0;
+ GSList *group;
+};
- if (!radio_menu_item_type)
- {
- static const GTypeInfo radio_menu_item_info =
- {
- sizeof (GtkRadioMenuItemClass),
- NULL, /* base_init */
- NULL, /* base_finalize */
- (GClassInitFunc) gtk_radio_menu_item_class_init,
- NULL, /* class_finalize */
- NULL, /* class_data */
- sizeof (GtkRadioMenuItem),
- 0, /* n_preallocs */
- (GInstanceInitFunc) gtk_radio_menu_item_init,
- };
-
- radio_menu_item_type =
- g_type_register_static (GTK_TYPE_CHECK_MENU_ITEM, "GtkRadioMenuItem",
- &radio_menu_item_info, 0);
- }
+enum {
+ PROP_0,
+ PROP_GROUP
+};
- return radio_menu_item_type;
-}
+static void gtk_radio_menu_item_destroy (GtkWidget *widget);
+static void gtk_radio_menu_item_activate (GtkMenuItem *menu_item);
+static void gtk_radio_menu_item_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gtk_radio_menu_item_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+static guint group_changed_signal = 0;
+
+G_DEFINE_TYPE (GtkRadioMenuItem, gtk_radio_menu_item, GTK_TYPE_CHECK_MENU_ITEM)
+
+/**
+ * gtk_radio_menu_item_new:
+ * @group: (element-type GtkRadioMenuItem): the group to which the
+ * radio menu item is to be attached
+ *
+ * Creates a new #GtkRadioMenuItem.
+ *
+ * Returns: a new #GtkRadioMenuItem
+ */
GtkWidget*
gtk_radio_menu_item_new (GSList *group)
{
return GTK_WIDGET (radio_menu_item);
}
+static void
+gtk_radio_menu_item_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GtkRadioMenuItem *radio_menu_item;
+
+ radio_menu_item = GTK_RADIO_MENU_ITEM (object);
+
+ switch (prop_id)
+ {
+ GSList *slist;
+
+ case PROP_GROUP:
+ slist = g_value_get_object (value);
+ if (slist)
+ slist = gtk_radio_menu_item_get_group ((GtkRadioMenuItem*) g_value_get_object (value));
+ gtk_radio_menu_item_set_group (radio_menu_item, slist);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gtk_radio_menu_item_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ switch (prop_id)
+ {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+/**
+ * gtk_radio_menu_item_set_group:
+ * @radio_menu_item: a #GtkRadioMenuItem.
+ * @group: (element-type GtkRadioMenuItem): the new group.
+ *
+ * Sets the group of a radio menu item, or changes it.
+ */
void
gtk_radio_menu_item_set_group (GtkRadioMenuItem *radio_menu_item,
GSList *group)
{
+ GtkRadioMenuItemPrivate *priv;
+ GtkWidget *old_group_singleton = NULL;
+ GtkWidget *new_group_singleton = NULL;
+
g_return_if_fail (GTK_IS_RADIO_MENU_ITEM (radio_menu_item));
g_return_if_fail (!g_slist_find (group, radio_menu_item));
-
- if (radio_menu_item->group)
+
+ priv = radio_menu_item->priv;
+
+ if (priv->group)
{
GSList *slist;
-
- radio_menu_item->group = g_slist_remove (radio_menu_item->group, radio_menu_item);
-
- for (slist = radio_menu_item->group; slist; slist = slist->next)
+
+ priv->group = g_slist_remove (priv->group, radio_menu_item);
+
+ if (priv->group && !priv->group->next)
+ old_group_singleton = g_object_ref (priv->group->data);
+
+ for (slist = priv->group; slist; slist = slist->next)
{
GtkRadioMenuItem *tmp_item;
tmp_item = slist->data;
-
- tmp_item->group = radio_menu_item->group;
+
+ tmp_item->priv->group = priv->group;
}
}
- radio_menu_item->group = g_slist_prepend (group, radio_menu_item);
-
+ if (group && !group->next)
+ new_group_singleton = g_object_ref (group->data);
+
+ priv->group = g_slist_prepend (group, radio_menu_item);
+
if (group)
{
GSList *slist;
GtkRadioMenuItem *tmp_item;
tmp_item = slist->data;
-
- tmp_item->group = radio_menu_item->group;
+
+ tmp_item->priv->group = priv->group;
}
}
else
{
- GTK_CHECK_MENU_ITEM (radio_menu_item)->active = TRUE;
+ _gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (radio_menu_item), TRUE);
/* gtk_widget_set_state (GTK_WIDGET (radio_menu_item), GTK_STATE_ACTIVE);
*/
}
+
+ g_object_ref (radio_menu_item);
+
+ g_object_notify (G_OBJECT (radio_menu_item), "group");
+ g_signal_emit (radio_menu_item, group_changed_signal, 0);
+ if (old_group_singleton)
+ {
+ g_signal_emit (old_group_singleton, group_changed_signal, 0);
+ g_object_unref (old_group_singleton);
+ }
+ if (new_group_singleton)
+ {
+ g_signal_emit (new_group_singleton, group_changed_signal, 0);
+ g_object_unref (new_group_singleton);
+ }
+
+ g_object_unref (radio_menu_item);
}
+
+/**
+ * gtk_radio_menu_item_new_with_label:
+ * @group: (element-type GtkRadioMenuItem) (transfer full):
+ * @label: the text for the label
+ *
+ * Creates a new #GtkRadioMenuItem whose child is a simple #GtkLabel.
+ *
+ * Returns: (transfer none): A new #GtkRadioMenuItem
+ */
GtkWidget*
gtk_radio_menu_item_new_with_label (GSList *group,
const gchar *label)
{
- GtkWidget *radio_menu_item;
- GtkWidget *accel_label;
-
- radio_menu_item = gtk_radio_menu_item_new (group);
- accel_label = gtk_accel_label_new (label);
- gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
- gtk_container_add (GTK_CONTAINER (radio_menu_item), accel_label);
- gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label), radio_menu_item);
- gtk_widget_show (accel_label);
-
- return radio_menu_item;
+ return g_object_new (GTK_TYPE_RADIO_MENU_ITEM,
+ "group", (group) ? group->data : NULL,
+ "label", label,
+ NULL);
}
/**
* gtk_radio_menu_item_new_with_mnemonic:
- * @group: group the radio menu item is inside
+ * @group: (element-type GtkRadioMenuItem): group the radio menu item is inside
* @label: the text of the button, with an underscore in front of the
* mnemonic character
- * @returns: a new #GtkRadioMenuItem
*
* Creates a new #GtkRadioMenuItem containing a label. The label
* will be created using gtk_label_new_with_mnemonic(), so underscores
* in @label indicate the mnemonic for the menu item.
- **/
+ *
+ * Returns: a new #GtkRadioMenuItem
+ */
GtkWidget*
gtk_radio_menu_item_new_with_mnemonic (GSList *group,
const gchar *label)
{
- GtkWidget *radio_menu_item;
- GtkWidget *accel_label;
-
- radio_menu_item = gtk_radio_menu_item_new (group);
- accel_label = g_object_new (GTK_TYPE_ACCEL_LABEL, NULL);
- gtk_label_set_text_with_mnemonic (GTK_LABEL (accel_label), label);
- gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
-
- gtk_container_add (GTK_CONTAINER (radio_menu_item), accel_label);
- gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label), radio_menu_item);
- gtk_widget_show (accel_label);
-
- return radio_menu_item;
+ return g_object_new (GTK_TYPE_RADIO_MENU_ITEM,
+ "group", (group) ? group->data : NULL,
+ "label", label,
+ "use-underline", TRUE,
+ NULL);
}
/**
- * gtk_radio_menu_item_new_from_widget:
+ * gtk_radio_menu_item_new_from_widget: (constructor)
* @group: An existing #GtkRadioMenuItem
- *
+ *
* Creates a new #GtkRadioMenuItem adding it to the same group as @group.
- *
- * Return value: The new #GtkRadioMenuItem
- *
+ *
+ * Return value: (transfer none): The new #GtkRadioMenuItem
+ *
* Since: 2.4
**/
GtkWidget *
}
/**
- * gtk_radio_menu_item_new_with_mnemonic_from_widget:
+ * gtk_radio_menu_item_new_with_mnemonic_from_widget: (constructor)
* @group: An existing #GtkRadioMenuItem
* @label: the text of the button, with an underscore in front of the
* mnemonic character
*
* The new #GtkRadioMenuItem is added to the same group as @group.
*
- * Return value: The new #GtkRadioMenuItem
- *
+ * Return value: (transfer none): The new #GtkRadioMenuItem
+ *
* Since: 2.4
**/
GtkWidget *
}
/**
- * gtk_radio_menu_item_new_with_label_from_widget:
- * @group: an existing #GtkRadioMenuItem
+ * gtk_radio_menu_item_new_with_label_from_widget: (constructor)
+ * @group: an existing #GtkRadioMenuItem
* @label: the text for the label
*
* Creates a new GtkRadioMenuItem whose child is a simple GtkLabel.
* The new #GtkRadioMenuItem is added to the same group as @group.
*
- * Return value: The new #GtkRadioMenuItem
- *
+ * Return value: (transfer none): The new #GtkRadioMenuItem
+ *
* Since: 2.4
**/
GtkWidget *
return gtk_radio_menu_item_new_with_label (list, label);
}
+/**
+ * gtk_radio_menu_item_get_group:
+ * @radio_menu_item: a #GtkRadioMenuItem
+ *
+ * Returns the group to which the radio menu item belongs, as a #GList of
+ * #GtkRadioMenuItem. The list belongs to GTK+ and should not be freed.
+ *
+ * Returns: (element-type GtkRadioMenuItem) (transfer none): the group
+ * of @radio_menu_item
+ */
GSList*
gtk_radio_menu_item_get_group (GtkRadioMenuItem *radio_menu_item)
{
g_return_val_if_fail (GTK_IS_RADIO_MENU_ITEM (radio_menu_item), NULL);
- return radio_menu_item->group;
+ return radio_menu_item->priv->group;
}
-
static void
gtk_radio_menu_item_class_init (GtkRadioMenuItemClass *klass)
{
- GtkObjectClass *object_class;
+ GObjectClass *gobject_class;
+ GtkWidgetClass *widget_class;
GtkMenuItemClass *menu_item_class;
- object_class = (GtkObjectClass*) klass;
- menu_item_class = (GtkMenuItemClass*) klass;
+ gobject_class = G_OBJECT_CLASS (klass);
+ widget_class = GTK_WIDGET_CLASS (klass);
+ menu_item_class = GTK_MENU_ITEM_CLASS (klass);
+
+ gobject_class->set_property = gtk_radio_menu_item_set_property;
+ gobject_class->get_property = gtk_radio_menu_item_get_property;
- parent_class = g_type_class_peek_parent (klass);
+ widget_class->destroy = gtk_radio_menu_item_destroy;
- object_class->destroy = gtk_radio_menu_item_destroy;
+ gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_RADIO_MENU_ITEM_ACCESSIBLE);
menu_item_class->activate = gtk_radio_menu_item_activate;
+
+ /**
+ * GtkRadioMenuItem:group:
+ *
+ * The radio menu item whose group this widget belongs to.
+ *
+ * Since: 2.8
+ */
+ g_object_class_install_property (gobject_class,
+ PROP_GROUP,
+ g_param_spec_object ("group",
+ P_("Group"),
+ P_("The radio menu item whose group this widget belongs to."),
+ GTK_TYPE_RADIO_MENU_ITEM,
+ GTK_PARAM_WRITABLE));
+
+ /**
+ * GtkStyle::group-changed:
+ * @style: the object which received the signal
+ *
+ * Emitted when the group of radio menu items that a radio menu item belongs
+ * to changes. This is emitted when a radio menu item switches from
+ * being alone to being part of a group of 2 or more menu items, or
+ * vice-versa, and when a button is moved from one group of 2 or
+ * more menu items ton a different one, but not when the composition
+ * of the group that a menu item belongs to changes.
+ *
+ * Since: 2.4
+ */
+ group_changed_signal = g_signal_new (I_("group-changed"),
+ G_OBJECT_CLASS_TYPE (gobject_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GtkRadioMenuItemClass, group_changed),
+ NULL, NULL,
+ _gtk_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ g_type_class_add_private (klass, sizeof (GtkRadioMenuItemPrivate));
}
static void
gtk_radio_menu_item_init (GtkRadioMenuItem *radio_menu_item)
{
- radio_menu_item->group = g_slist_prepend (NULL, radio_menu_item);
+ GtkRadioMenuItemPrivate *priv;
+
+ radio_menu_item->priv = G_TYPE_INSTANCE_GET_PRIVATE (radio_menu_item,
+ GTK_TYPE_RADIO_MENU_ITEM,
+ GtkRadioMenuItemPrivate);
+ priv = radio_menu_item->priv;
+
+ priv->group = g_slist_prepend (NULL, radio_menu_item);
gtk_check_menu_item_set_draw_as_radio (GTK_CHECK_MENU_ITEM (radio_menu_item), TRUE);
}
static void
-gtk_radio_menu_item_destroy (GtkObject *object)
+gtk_radio_menu_item_destroy (GtkWidget *widget)
{
- GtkRadioMenuItem *radio_menu_item;
+ GtkRadioMenuItem *radio_menu_item = GTK_RADIO_MENU_ITEM (widget);
+ GtkRadioMenuItemPrivate *priv = radio_menu_item->priv;
+ GtkWidget *old_group_singleton = NULL;
GtkRadioMenuItem *tmp_menu_item;
GSList *tmp_list;
+ gboolean was_in_group;
- g_return_if_fail (GTK_IS_RADIO_MENU_ITEM (object));
+ was_in_group = priv->group && priv->group->next;
- radio_menu_item = GTK_RADIO_MENU_ITEM (object);
+ priv->group = g_slist_remove (priv->group, radio_menu_item);
+ if (priv->group && !priv->group->next)
+ old_group_singleton = priv->group->data;
- radio_menu_item->group = g_slist_remove (radio_menu_item->group,
- radio_menu_item);
- tmp_list = radio_menu_item->group;
+ tmp_list = priv->group;
while (tmp_list)
{
tmp_menu_item = tmp_list->data;
tmp_list = tmp_list->next;
- tmp_menu_item->group = radio_menu_item->group;
+ tmp_menu_item->priv->group = priv->group;
}
/* this radio menu item is no longer in the group */
- radio_menu_item->group = NULL;
+ priv->group = NULL;
- if (GTK_OBJECT_CLASS (parent_class)->destroy)
- (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
+ if (old_group_singleton)
+ g_signal_emit (old_group_singleton, group_changed_signal, 0);
+ if (was_in_group)
+ g_signal_emit (radio_menu_item, group_changed_signal, 0);
+
+ GTK_WIDGET_CLASS (gtk_radio_menu_item_parent_class)->destroy (widget);
}
static void
gtk_radio_menu_item_activate (GtkMenuItem *menu_item)
{
- GtkRadioMenuItem *radio_menu_item;
- GtkCheckMenuItem *check_menu_item;
+ GtkRadioMenuItem *radio_menu_item = GTK_RADIO_MENU_ITEM (menu_item);
+ GtkRadioMenuItemPrivate *priv = radio_menu_item->priv;
+ GtkCheckMenuItem *check_menu_item = GTK_CHECK_MENU_ITEM (menu_item);
GtkCheckMenuItem *tmp_menu_item;
+ GtkAction *action;
GSList *tmp_list;
+ gboolean active;
gint toggled;
- g_return_if_fail (GTK_IS_RADIO_MENU_ITEM (menu_item));
+ action = gtk_activatable_get_related_action (GTK_ACTIVATABLE (menu_item));
+ if (action && gtk_menu_item_get_submenu (menu_item) == NULL)
+ gtk_action_activate (action);
- radio_menu_item = GTK_RADIO_MENU_ITEM (menu_item);
- check_menu_item = GTK_CHECK_MENU_ITEM (menu_item);
toggled = FALSE;
- if (check_menu_item->active)
+ active = gtk_check_menu_item_get_active (check_menu_item);
+ if (active)
{
tmp_menu_item = NULL;
- tmp_list = radio_menu_item->group;
+ tmp_list = priv->group;
while (tmp_list)
{
tmp_menu_item = tmp_list->data;
tmp_list = tmp_list->next;
- if (tmp_menu_item->active && (tmp_menu_item != check_menu_item))
+ if (gtk_check_menu_item_get_active (tmp_menu_item) &&
+ tmp_menu_item != check_menu_item)
break;
tmp_menu_item = NULL;
if (tmp_menu_item)
{
toggled = TRUE;
- check_menu_item->active = !check_menu_item->active;
+ _gtk_check_menu_item_set_active (check_menu_item, !active);
}
}
else
{
toggled = TRUE;
- check_menu_item->active = !check_menu_item->active;
+ _gtk_check_menu_item_set_active (check_menu_item, !active);
- tmp_list = radio_menu_item->group;
+ tmp_list = priv->group;
while (tmp_list)
{
tmp_menu_item = tmp_list->data;
tmp_list = tmp_list->next;
- if (tmp_menu_item->active && (tmp_menu_item != check_menu_item))
+ if (gtk_check_menu_item_get_active (tmp_menu_item) &&
+ tmp_menu_item != check_menu_item)
{
- gtk_menu_item_activate (GTK_MENU_ITEM (tmp_menu_item));
+ gtk_menu_item_activate (GTK_MENU_ITEM (tmp_menu_item));
break;
}
}
}
if (toggled)
- gtk_check_menu_item_toggled (check_menu_item);
+ {
+ gtk_check_menu_item_toggled (check_menu_item);
+ }
gtk_widget_queue_draw (GTK_WIDGET (radio_menu_item));
}
projects / ~andy / gtk / blobdiff