diff options
Diffstat (limited to 'gtk/gtkradiobutton.c')
| -rw-r--r-- | gtk/gtkradiobutton.c | 148 |
1 files changed, 146 insertions, 2 deletions
diff --git a/gtk/gtkradiobutton.c b/gtk/gtkradiobutton.c index b4de838f4..e8af94890 100644 --- a/gtk/gtkradiobutton.c +++ b/gtk/gtkradiobutton.c @@ -32,12 +32,22 @@ #include "gtkintl.h" #include "gtkalias.h" +#define GTK_RADIO_BUTTON_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_RADIO_BUTTON, GtkRadioButtonPrivate)) + +#define GTK_RADIO_BUTTON_VALUE_UNSET (G_MAXINT) + +typedef struct _GtkRadioButtonPrivate GtkRadioButtonPrivate; enum { PROP_0, - PROP_GROUP + PROP_GROUP, + PROP_VALUE }; +struct _GtkRadioButtonPrivate +{ + gint value; +}; static void gtk_radio_button_destroy (GtkObject *object); static gboolean gtk_radio_button_focus (GtkWidget *widget, @@ -73,6 +83,8 @@ gtk_radio_button_class_init (GtkRadioButtonClass *class) button_class = (GtkButtonClass*) class; check_button_class = (GtkCheckButtonClass*) class; + g_type_class_add_private (class, sizeof (GtkRadioButtonPrivate)); + gobject_class->set_property = gtk_radio_button_set_property; gobject_class->get_property = gtk_radio_button_get_property; @@ -83,6 +95,25 @@ gtk_radio_button_class_init (GtkRadioButtonClass *class) P_("The radio button whose group this widget belongs to."), GTK_TYPE_RADIO_BUTTON, GTK_PARAM_WRITABLE)); + /** + * GtkRadioButton:value: + * + * The value is an arbitrary integer which can be used as a + * convenient way to determine which button in a group is + * currently active in a ::toggled signal handler. + * + * Since: 2.12 + */ + g_object_class_install_property (gobject_class, + PROP_VALUE, + g_param_spec_int ("value", + P_("Value"), + P_("The value bound to the radio button"), + G_MININT, G_MAXINT - 1, + G_MAXINT - 1, + GTK_PARAM_READWRITE)); + + object_class->destroy = gtk_radio_button_destroy; widget_class->focus = gtk_radio_button_focus; @@ -118,6 +149,11 @@ gtk_radio_button_class_init (GtkRadioButtonClass *class) static void gtk_radio_button_init (GtkRadioButton *radio_button) { + GtkRadioButtonPrivate *priv; + + priv = GTK_RADIO_BUTTON_GET_PRIVATE (radio_button); + priv->value = GTK_RADIO_BUTTON_VALUE_UNSET; + GTK_WIDGET_SET_FLAGS (radio_button, GTK_NO_WINDOW); GTK_WIDGET_UNSET_FLAGS (radio_button, GTK_RECEIVES_DEFAULT); @@ -147,7 +183,7 @@ gtk_radio_button_set_property (GObject *object, GtkRadioButton *button; case PROP_GROUP: - button = g_value_get_object (value); + button = g_value_get_object (value); if (button) slist = gtk_radio_button_get_group (button); @@ -155,6 +191,9 @@ gtk_radio_button_set_property (GObject *object, slist = NULL; gtk_radio_button_set_group (radio_button, slist); break; + case PROP_VALUE: + gtk_radio_button_set_value (radio_button, g_value_get_int (value)); + break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; @@ -167,8 +206,13 @@ gtk_radio_button_get_property (GObject *object, GValue *value, GParamSpec *pspec) { + GtkRadioButton *radio_button = GTK_RADIO_BUTTON (object); + switch (prop_id) { + case PROP_VALUE: + g_value_set_int (value, gtk_radio_button_get_value (radio_button)); + break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; @@ -742,5 +786,105 @@ gtk_radio_button_draw_indicator (GtkCheckButton *check_button, } } +/** + * gtk_radio_button_get_value: + * @radio_button: a #GtkRadioButton + * + * Retrieve the value property of the @radio_button set using + * gtk_radio_button_set_value. If no value was set, the position + * of @radio_button in the radio button group is returned. + * + * Return value: the value property of the radio button + * + * Since: 2.12 + */ +gint +gtk_radio_button_get_value (GtkRadioButton *radio_button) +{ + GtkRadioButtonPrivate *priv; + gint retval; + + g_return_val_if_fail (GTK_IS_RADIO_BUTTON (radio_button), 0); + + priv = GTK_RADIO_BUTTON_GET_PRIVATE (radio_button); + + retval = priv->value; + + if (retval == GTK_RADIO_BUTTON_VALUE_UNSET) + { + gint index = g_slist_index (radio_button->group, radio_button); + gint length = g_slist_length (radio_button->group); + + retval = length - index; + } + + return retval; +} + +/** + * gtk_radio_button_set_value: + * @radio_button: a #GtkRadioButton + * @value: the value bound to the radio button + * + * Set the value bound to the radio button. The value is an arbitrary + * integer which can be used as a convenient way to determine which + * radio button in a group is currently active in an ::toggled signal + * handler. + * + * Since: 2.12 + */ +void +gtk_radio_button_set_value (GtkRadioButton *radio_button, + gint value) +{ + GtkRadioButtonPrivate *priv; + + g_return_if_fail (GTK_IS_RADIO_BUTTON (radio_button)); + g_return_if_fail (value < GTK_RADIO_BUTTON_VALUE_UNSET); + + priv = GTK_RADIO_BUTTON_GET_PRIVATE (radio_button); + + if (priv->value != value) + { + g_object_ref (radio_button); + + priv->value = value; + + g_object_notify (G_OBJECT (radio_button), "value"); + g_object_unref (radio_button); + } +} + +/** + * gtk_radio_button_get_current_value: + * @radio_button: a #GtkRadioButton + * + * Returns the value of the currently selected radio button inside + * the same group of @radio_button. + * + * Return value: the value set with gtk_radio_button_set_value() or + * the current position inside the group. + * + * Since: 2.12 + */ +gint +gtk_radio_button_get_current_value (GtkRadioButton *radio_button) +{ + GSList *l; + + g_return_val_if_fail (GTK_IS_RADIO_BUTTON (radio_button), + GTK_RADIO_BUTTON_VALUE_UNSET); + + for (l = radio_button->group; l; l = l->next) + { + GtkToggleButton *button = GTK_TOGGLE_BUTTON (l->data); + + if (gtk_toggle_button_get_active (button)) + return gtk_radio_button_get_value (GTK_RADIO_BUTTON (l->data)); + } + + return GTK_RADIO_BUTTON_VALUE_UNSET; +} + #define __GTK_RADIO_BUTTON_C__ #include "gtkaliasdef.c" |