diff options
Diffstat (limited to 'gtk/gtkradioaction.c')
| -rw-r--r-- | gtk/gtkradioaction.c | 160 |
1 files changed, 155 insertions, 5 deletions
diff --git a/gtk/gtkradioaction.c b/gtk/gtkradioaction.c index e0ea5f1f9b..52a03d36a4 100644 --- a/gtk/gtkradioaction.c +++ b/gtk/gtkradioaction.c @@ -31,17 +31,43 @@ #include <config.h> #include "gtkradioaction.h" +#include "gtkradiomenuitem.h" #include "gtktoggleactionprivate.h" +#include "gtkintl.h" #define GTK_RADIO_ACTION_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_RADIO_ACTION, GtkRadioActionPrivate)) struct _GtkRadioActionPrivate { GSList *group; + gint value; }; -static void gtk_radio_action_init (GtkRadioAction *action); -static void gtk_radio_action_class_init (GtkRadioActionClass *class); +enum +{ + CHANGED, + LAST_SIGNAL +}; + +enum +{ + PROP_0, + PROP_VALUE +}; + +static void gtk_radio_action_init (GtkRadioAction *action); +static void gtk_radio_action_class_init (GtkRadioActionClass *class); +static void gtk_radio_action_finalize (GObject *object); +static void gtk_radio_action_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec); +static void gtk_radio_action_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec); +static void gtk_radio_action_activate (GtkAction *action); + GType gtk_radio_action_get_type (void) @@ -71,10 +97,8 @@ gtk_radio_action_get_type (void) return type; } -static void gtk_radio_action_finalize (GObject *object); -static void gtk_radio_action_activate (GtkAction *action); - static GObjectClass *parent_class = NULL; +static guint radio_action_signals[LAST_SIGNAL] = { 0 }; static void gtk_radio_action_class_init (GtkRadioActionClass *klass) @@ -87,9 +111,51 @@ gtk_radio_action_class_init (GtkRadioActionClass *klass) action_class = GTK_ACTION_CLASS (klass); gobject_class->finalize = gtk_radio_action_finalize; + gobject_class->set_property = gtk_radio_action_set_property; + gobject_class->get_property = gtk_radio_action_get_property; action_class->activate = gtk_radio_action_activate; + /** + * GtkRadioAction:value: + * + * The value is an arbitrary integer which can be used as a + * convenient way to determine which action in the group is + * currently active in an ::activate or ::changed signal handler. + * See gtk_radio_action_get_current_value() and #GtkRadioActionEntry + * for convenient ways to get and set this property. + * + * Since: 2.4 + */ + g_object_class_install_property (gobject_class, + PROP_VALUE, + g_param_spec_int ("value", + _("The value"), + _("The value returned by gtk_radio_action_get_current_value() when this action is the current action of its group."), + G_MININT, + G_MAXINT, + 0, + G_PARAM_READWRITE)); + + /** + * GtkRadioAction::changed: + * @action: the action on which the signal is emitted + * @current: the member of @action<!-- -->s group which has just been activated + * + * The ::changed signal is emitted on every member of a radio group when the + * active member is changed. The signal gets emitted after the ::activate signals + * for the previous and current active members. + * + * Since: 2.4 + */ + radio_action_signals[CHANGED] = + g_signal_new ("changed", + G_OBJECT_CLASS_TYPE (klass), + G_SIGNAL_RUN_FIRST | G_SIGNAL_NO_RECURSE, + G_STRUCT_OFFSET (GtkRadioActionClass, changed), NULL, NULL, + g_cclosure_marshal_VOID__OBJECT, + G_TYPE_NONE, 1, GTK_TYPE_RADIO_ACTION); + g_type_class_add_private (gobject_class, sizeof (GtkRadioActionPrivate)); } @@ -98,6 +164,7 @@ gtk_radio_action_init (GtkRadioAction *action) { action->private_data = GTK_RADIO_ACTION_GET_PRIVATE (action); action->private_data->group = g_slist_prepend (NULL, action); + action->private_data->value = 0; } static void @@ -125,6 +192,48 @@ gtk_radio_action_finalize (GObject *object) } static void +gtk_radio_action_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + GtkRadioAction *radio_action; + + radio_action = GTK_RADIO_ACTION (object); + + switch (prop_id) + { + case PROP_VALUE: + radio_action->private_data->value = g_value_get_int (value); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +gtk_radio_action_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + GtkRadioAction *radio_action; + + radio_action = GTK_RADIO_ACTION (object); + + switch (prop_id) + { + case PROP_VALUE: + g_value_set_int (value, radio_action->private_data->value); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void gtk_radio_action_activate (GtkAction *action) { GtkRadioAction *radio_action; @@ -167,6 +276,15 @@ gtk_radio_action_activate (GtkAction *action) break; } } + + tmp_list = radio_action->private_data->group; + while (tmp_list) + { + tmp_action = tmp_list->data; + tmp_list = tmp_list->next; + + g_signal_emit (tmp_action, radio_action_signals[CHANGED], 0, radio_action); + } } gtk_toggle_action_toggled (toggle_action); @@ -238,3 +356,35 @@ gtk_radio_action_set_group (GtkRadioAction *action, gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), TRUE); } } + +/** + * gtk_radio_action_get_current_value: + * @action: a #GtkRadioAction + * + * Obtains the value property of the the currently active member of + * the group to which @action belongs. + * + * Return value: The value of the currently active group member + * + * Since: 2.4 + **/ +gint +gtk_radio_action_get_current_value (GtkRadioAction *action) +{ + GSList *slist; + + g_return_val_if_fail (GTK_IS_RADIO_ACTION (action), 0); + + if (action->private_data->group) + { + for (slist = action->private_data->group; slist; slist = slist->next) + { + GtkToggleAction *toggle_action = slist->data; + + if (toggle_action->private_data->active) + return GTK_RADIO_ACTION (toggle_action)->private_data->value; + } + } + + return action->private_data->value; +} |