504 lines
14 KiB
C
504 lines
14 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include "gtkaccellabel.h"
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#include "gtkmarshalers.h"
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#include "gtkradiomenuitem.h"
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#include "gtkactivatable.h"
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#include "gtkprivate.h"
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#include "gtkintl.h"
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#include "gtkalias.h"
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enum {
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PROP_0,
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PROP_GROUP
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};
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static void gtk_radio_menu_item_destroy (GtkObject *object);
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static void gtk_radio_menu_item_activate (GtkMenuItem *menu_item);
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static void gtk_radio_menu_item_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 void gtk_radio_menu_item_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 guint group_changed_signal = 0;
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G_DEFINE_TYPE (GtkRadioMenuItem, gtk_radio_menu_item, GTK_TYPE_CHECK_MENU_ITEM)
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GtkWidget*
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gtk_radio_menu_item_new (GSList *group)
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{
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GtkRadioMenuItem *radio_menu_item;
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radio_menu_item = g_object_new (GTK_TYPE_RADIO_MENU_ITEM, NULL);
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gtk_radio_menu_item_set_group (radio_menu_item, group);
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return GTK_WIDGET (radio_menu_item);
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}
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static void
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gtk_radio_menu_item_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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GtkRadioMenuItem *radio_menu_item;
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radio_menu_item = GTK_RADIO_MENU_ITEM (object);
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switch (prop_id)
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{
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GSList *slist;
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case PROP_GROUP:
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if (G_VALUE_HOLDS_OBJECT (value))
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slist = gtk_radio_menu_item_get_group ((GtkRadioMenuItem*) g_value_get_object (value));
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else
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slist = NULL;
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gtk_radio_menu_item_set_group (radio_menu_item, slist);
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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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gtk_radio_menu_item_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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switch (prop_id)
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{
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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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void
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gtk_radio_menu_item_set_group (GtkRadioMenuItem *radio_menu_item,
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GSList *group)
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{
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GtkWidget *old_group_singleton = NULL;
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GtkWidget *new_group_singleton = NULL;
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g_return_if_fail (GTK_IS_RADIO_MENU_ITEM (radio_menu_item));
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g_return_if_fail (!g_slist_find (group, radio_menu_item));
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if (radio_menu_item->group)
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{
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GSList *slist;
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radio_menu_item->group = g_slist_remove (radio_menu_item->group, radio_menu_item);
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if (radio_menu_item->group && !radio_menu_item->group->next)
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old_group_singleton = g_object_ref (radio_menu_item->group->data);
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for (slist = radio_menu_item->group; slist; slist = slist->next)
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{
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GtkRadioMenuItem *tmp_item;
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tmp_item = slist->data;
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tmp_item->group = radio_menu_item->group;
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}
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}
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if (group && !group->next)
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new_group_singleton = g_object_ref (group->data);
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radio_menu_item->group = g_slist_prepend (group, radio_menu_item);
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if (group)
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{
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GSList *slist;
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for (slist = group; slist; slist = slist->next)
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{
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GtkRadioMenuItem *tmp_item;
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tmp_item = slist->data;
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tmp_item->group = radio_menu_item->group;
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}
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}
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else
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{
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GTK_CHECK_MENU_ITEM (radio_menu_item)->active = TRUE;
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/* gtk_widget_set_state (GTK_WIDGET (radio_menu_item), GTK_STATE_ACTIVE);
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*/
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}
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g_object_ref (radio_menu_item);
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g_object_notify (G_OBJECT (radio_menu_item), "group");
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g_signal_emit (radio_menu_item, group_changed_signal, 0);
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if (old_group_singleton)
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{
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g_signal_emit (old_group_singleton, group_changed_signal, 0);
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g_object_unref (old_group_singleton);
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}
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if (new_group_singleton)
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{
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g_signal_emit (new_group_singleton, group_changed_signal, 0);
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g_object_unref (new_group_singleton);
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}
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g_object_unref (radio_menu_item);
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}
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/**
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* gtk_radio_menu_item_new_with_label:
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* @group: (element-type GtkRadioMenuItem) (transfer full):
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* @label: the text for the label
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*
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* Creates a new #GtkRadioMenuItem whose child is a simple #GtkLabel.
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*
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* Returns: (transfer none): A new #GtkRadioMenuItem
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*/
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GtkWidget*
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gtk_radio_menu_item_new_with_label (GSList *group,
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const gchar *label)
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{
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GtkWidget *radio_menu_item;
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GtkWidget *accel_label;
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radio_menu_item = gtk_radio_menu_item_new (group);
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accel_label = gtk_accel_label_new (label);
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gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
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gtk_container_add (GTK_CONTAINER (radio_menu_item), accel_label);
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gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label), radio_menu_item);
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gtk_widget_show (accel_label);
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return radio_menu_item;
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}
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/**
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* gtk_radio_menu_item_new_with_mnemonic:
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* @group: group the radio menu item is inside
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* @label: the text of the button, with an underscore in front of the
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* mnemonic character
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* @returns: a new #GtkRadioMenuItem
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*
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* Creates a new #GtkRadioMenuItem containing a label. The label
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* will be created using gtk_label_new_with_mnemonic(), so underscores
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* in @label indicate the mnemonic for the menu item.
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**/
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GtkWidget*
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gtk_radio_menu_item_new_with_mnemonic (GSList *group,
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const gchar *label)
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{
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GtkWidget *radio_menu_item;
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GtkWidget *accel_label;
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radio_menu_item = gtk_radio_menu_item_new (group);
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accel_label = g_object_new (GTK_TYPE_ACCEL_LABEL, NULL);
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gtk_label_set_text_with_mnemonic (GTK_LABEL (accel_label), label);
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gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
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gtk_container_add (GTK_CONTAINER (radio_menu_item), accel_label);
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gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label), radio_menu_item);
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gtk_widget_show (accel_label);
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return radio_menu_item;
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}
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/**
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* gtk_radio_menu_item_new_from_widget:
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* @group: An existing #GtkRadioMenuItem
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*
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* Creates a new #GtkRadioMenuItem adding it to the same group as @group.
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*
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* Return value: (transfer none): The new #GtkRadioMenuItem
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*
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* Since: 2.4
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**/
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GtkWidget *
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gtk_radio_menu_item_new_from_widget (GtkRadioMenuItem *group)
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{
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GSList *list = NULL;
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g_return_val_if_fail (GTK_IS_RADIO_MENU_ITEM (group), NULL);
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if (group)
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list = gtk_radio_menu_item_get_group (group);
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return gtk_radio_menu_item_new (list);
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}
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/**
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* gtk_radio_menu_item_new_with_mnemonic_from_widget:
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* @group: An existing #GtkRadioMenuItem
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* @label: the text of the button, with an underscore in front of the
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* mnemonic character
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*
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* Creates a new GtkRadioMenuItem containing a label. The label will be
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* created using gtk_label_new_with_mnemonic(), so underscores in label
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* indicate the mnemonic for the menu item.
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*
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* The new #GtkRadioMenuItem is added to the same group as @group.
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*
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* Return value: (transfer none): The new #GtkRadioMenuItem
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*
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* Since: 2.4
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**/
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GtkWidget *
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gtk_radio_menu_item_new_with_mnemonic_from_widget (GtkRadioMenuItem *group,
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const gchar *label)
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{
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GSList *list = NULL;
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g_return_val_if_fail (GTK_IS_RADIO_MENU_ITEM (group), NULL);
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if (group)
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list = gtk_radio_menu_item_get_group (group);
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return gtk_radio_menu_item_new_with_mnemonic (list, label);
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}
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/**
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* gtk_radio_menu_item_new_with_label_from_widget:
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* @group: an existing #GtkRadioMenuItem
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* @label: the text for the label
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*
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* Creates a new GtkRadioMenuItem whose child is a simple GtkLabel.
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* The new #GtkRadioMenuItem is added to the same group as @group.
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*
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* Return value: (transfer none): The new #GtkRadioMenuItem
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*
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* Since: 2.4
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**/
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GtkWidget *
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gtk_radio_menu_item_new_with_label_from_widget (GtkRadioMenuItem *group,
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const gchar *label)
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{
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GSList *list = NULL;
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g_return_val_if_fail (GTK_IS_RADIO_MENU_ITEM (group), NULL);
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if (group)
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list = gtk_radio_menu_item_get_group (group);
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return gtk_radio_menu_item_new_with_label (list, label);
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}
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/**
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* gtk_radio_menu_item_get_group:
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* @radio_menu_item: a #GtkRadioMenuItem
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*
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* Returns the group to which the radio menu item belongs, as a #GList of
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* #GtkRadioMenuItem. The list belongs to GTK+ and should not be freed.
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*
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* Returns: (transfer none): the group of @radio_menu_item
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*/
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GSList*
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gtk_radio_menu_item_get_group (GtkRadioMenuItem *radio_menu_item)
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{
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g_return_val_if_fail (GTK_IS_RADIO_MENU_ITEM (radio_menu_item), NULL);
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return radio_menu_item->group;
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}
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static void
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gtk_radio_menu_item_class_init (GtkRadioMenuItemClass *klass)
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{
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GObjectClass *gobject_class;
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GtkObjectClass *object_class;
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GtkMenuItemClass *menu_item_class;
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gobject_class = G_OBJECT_CLASS (klass);
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object_class = GTK_OBJECT_CLASS (klass);
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menu_item_class = GTK_MENU_ITEM_CLASS (klass);
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gobject_class->set_property = gtk_radio_menu_item_set_property;
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gobject_class->get_property = gtk_radio_menu_item_get_property;
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/**
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* GtkRadioMenuItem:group:
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*
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* The radio menu item whose group this widget belongs to.
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*
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* Since: 2.8
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*/
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g_object_class_install_property (gobject_class,
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PROP_GROUP,
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g_param_spec_object ("group",
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P_("Group"),
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P_("The radio menu item whose group this widget belongs to."),
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GTK_TYPE_RADIO_MENU_ITEM,
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GTK_PARAM_WRITABLE));
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object_class->destroy = gtk_radio_menu_item_destroy;
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menu_item_class->activate = gtk_radio_menu_item_activate;
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/**
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* GtkStyle::group-changed:
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* @style: the object which received the signal
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*
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* Emitted when the group of radio menu items that a radio menu item belongs
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* to changes. This is emitted when a radio menu item switches from
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* being alone to being part of a group of 2 or more menu items, or
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* vice-versa, and when a button is moved from one group of 2 or
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* more menu items ton a different one, but not when the composition
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* of the group that a menu item belongs to changes.
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*
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* Since: 2.4
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*/
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group_changed_signal = g_signal_new (I_("group-changed"),
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GtkRadioMenuItemClass, group_changed),
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NULL, NULL,
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_gtk_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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}
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static void
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gtk_radio_menu_item_init (GtkRadioMenuItem *radio_menu_item)
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{
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radio_menu_item->group = g_slist_prepend (NULL, radio_menu_item);
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gtk_check_menu_item_set_draw_as_radio (GTK_CHECK_MENU_ITEM (radio_menu_item), TRUE);
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}
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static void
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gtk_radio_menu_item_destroy (GtkObject *object)
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{
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GtkRadioMenuItem *radio_menu_item = GTK_RADIO_MENU_ITEM (object);
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GtkWidget *old_group_singleton = NULL;
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GtkRadioMenuItem *tmp_menu_item;
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GSList *tmp_list;
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gboolean was_in_group;
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was_in_group = radio_menu_item->group && radio_menu_item->group->next;
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radio_menu_item->group = g_slist_remove (radio_menu_item->group,
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radio_menu_item);
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if (radio_menu_item->group && !radio_menu_item->group->next)
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old_group_singleton = radio_menu_item->group->data;
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tmp_list = radio_menu_item->group;
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while (tmp_list)
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{
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tmp_menu_item = tmp_list->data;
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tmp_list = tmp_list->next;
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tmp_menu_item->group = radio_menu_item->group;
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}
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/* this radio menu item is no longer in the group */
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radio_menu_item->group = NULL;
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if (old_group_singleton)
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g_signal_emit (old_group_singleton, group_changed_signal, 0);
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if (was_in_group)
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g_signal_emit (radio_menu_item, group_changed_signal, 0);
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GTK_OBJECT_CLASS (gtk_radio_menu_item_parent_class)->destroy (object);
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}
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static void
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gtk_radio_menu_item_activate (GtkMenuItem *menu_item)
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{
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GtkRadioMenuItem *radio_menu_item = GTK_RADIO_MENU_ITEM (menu_item);
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GtkCheckMenuItem *check_menu_item = GTK_CHECK_MENU_ITEM (menu_item);
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GtkCheckMenuItem *tmp_menu_item;
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GtkAction *action;
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GSList *tmp_list;
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gint toggled;
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action = gtk_activatable_get_related_action (GTK_ACTIVATABLE (menu_item));
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if (action && gtk_menu_item_get_submenu (menu_item) == NULL)
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gtk_action_activate (action);
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toggled = FALSE;
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if (check_menu_item->active)
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{
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tmp_menu_item = NULL;
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tmp_list = radio_menu_item->group;
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while (tmp_list)
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{
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tmp_menu_item = tmp_list->data;
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tmp_list = tmp_list->next;
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if (tmp_menu_item->active && (tmp_menu_item != check_menu_item))
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break;
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tmp_menu_item = NULL;
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}
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if (tmp_menu_item)
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{
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toggled = TRUE;
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check_menu_item->active = !check_menu_item->active;
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}
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}
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else
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{
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toggled = TRUE;
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check_menu_item->active = !check_menu_item->active;
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tmp_list = radio_menu_item->group;
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while (tmp_list)
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{
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tmp_menu_item = tmp_list->data;
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tmp_list = tmp_list->next;
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if (tmp_menu_item->active && (tmp_menu_item != check_menu_item))
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{
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gtk_menu_item_activate (GTK_MENU_ITEM (tmp_menu_item));
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break;
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}
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}
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}
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if (toggled)
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{
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gtk_check_menu_item_toggled (check_menu_item);
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}
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gtk_widget_queue_draw (GTK_WIDGET (radio_menu_item));
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}
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#define __GTK_RADIO_MENU_ITEM_C__
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#include "gtkaliasdef.c"
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