898 lines
		
	
	
		
			25 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			898 lines
		
	
	
		
			25 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 "gtklabel.h"
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#include "gtkmarshalers.h"
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#include "gtkradiobutton.h"
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#include "gtkprivate.h"
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#include "gtkintl.h"
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/**
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 * SECTION:gtkradiobutton
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 * @Short_description: A choice from multiple check buttons
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 * @Title: GtkRadioButton
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 * @See_also: #GtkComboBox
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 *
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 * A single radio button performs the same basic function as a #GtkCheckButton,
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 * as its position in the object hierarchy reflects. It is only when multiple
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 * radio buttons are grouped together that they become a different user
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 * interface component in their own right.
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 *
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 * Every radio button is a member of some group of radio buttons. When one is
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 * selected, all other radio buttons in the same group are deselected. A
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 * #GtkRadioButton is one way of giving the user a choice from many options.
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 *
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 * Radio button widgets are created with gtk_radio_button_new(), passing %NULL
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 * as the argument if this is the first radio button in a group. In subsequent
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 * calls, the group you wish to add this button to should be passed as an
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 * argument. Optionally, gtk_radio_button_new_with_label() can be used if you
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 * want a text label on the radio button.
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 *
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 * Alternatively, when adding widgets to an existing group of radio buttons,
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 * use gtk_radio_button_new_from_widget() with a #GtkRadioButton that already
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 * has a group assigned to it. The convenience function
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 * gtk_radio_button_new_with_label_from_widget() is also provided.
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 *
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 * To retrieve the group a #GtkRadioButton is assigned to, use
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 * gtk_radio_button_get_group().
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 *
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 * To remove a #GtkRadioButton from one group and make it part of a new one,
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 * use gtk_radio_button_set_group().
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 *
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 * The group list does not need to be freed, as each #GtkRadioButton will remove
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 * itself and its list item when it is destroyed.
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 *
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 * <example>
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 * <title>How to create a group of two radio buttons.</title>
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 * <programlisting>
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 * void create_radio_buttons (void) {
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 *
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 *    GtkWidget *window, *radio1, *radio2, *box, *entry;
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 *    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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 *    box = gtk_vbox_new (TRUE, 2);
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 *
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 *    /* Create a radio button with a GtkEntry widget */
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 *    radio1 = gtk_radio_button_new (NULL);
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 *    entry = gtk_entry_new (<!-- -->);
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 *    gtk_container_add (GTK_CONTAINER (radio1), entry);
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 *
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 *
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 *    /* Create a radio button with a label */
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 *    radio2 = gtk_radio_button_new_with_label_from_widget (GTK_RADIO_BUTTON (radio1),
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 *                                                          "I'm the second radio button.");
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 *
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 *    /* Pack them into a box, then show all the widgets */
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 *    gtk_box_pack_start (GTK_BOX (box), radio1, TRUE, TRUE, 2);
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 *    gtk_box_pack_start (GTK_BOX (box), radio2, TRUE, TRUE, 2);
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 *    gtk_container_add (GTK_CONTAINER (window), box);
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 *    gtk_widget_show_all (window);
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 *    return;
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 * }
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 * </programlisting>
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 * </example>
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 *
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 * When an unselected button in the group is clicked the clicked button
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 * receives the #GtkToggleButton::toggled signal, as does the previously
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 * selected button.
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 * Inside the #GtkToggleButton::toggled handler, gtk_toggle_button_get_active()
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 * can be used to determine if the button has been selected or deselected.
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 */
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struct _GtkRadioButtonPriv
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{
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  GSList *group;
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};
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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_button_destroy        (GtkObject           *object);
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static gboolean gtk_radio_button_focus          (GtkWidget           *widget,
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						 GtkDirectionType     direction);
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static void     gtk_radio_button_clicked        (GtkButton           *button);
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static void     gtk_radio_button_draw_indicator (GtkCheckButton      *check_button,
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						 GdkRectangle        *area);
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static void     gtk_radio_button_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_button_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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G_DEFINE_TYPE (GtkRadioButton, gtk_radio_button, GTK_TYPE_CHECK_BUTTON)
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static guint group_changed_signal = 0;
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static void
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gtk_radio_button_class_init (GtkRadioButtonClass *class)
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{
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  GObjectClass *gobject_class;
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  GtkObjectClass *object_class;
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  GtkButtonClass *button_class;
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  GtkCheckButtonClass *check_button_class;
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  GtkWidgetClass *widget_class;
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  gobject_class = G_OBJECT_CLASS (class);
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  object_class = (GtkObjectClass*) class;
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  widget_class = (GtkWidgetClass*) class;
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  button_class = (GtkButtonClass*) class;
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  check_button_class = (GtkCheckButtonClass*) class;
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  gobject_class->set_property = gtk_radio_button_set_property;
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  gobject_class->get_property = gtk_radio_button_get_property;
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  /**
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   * GtkRadioButton:group:
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   *
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   * Sets a new group for a radio button.
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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 button whose group this widget belongs to."),
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							GTK_TYPE_RADIO_BUTTON,
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							GTK_PARAM_WRITABLE));
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  object_class->destroy = gtk_radio_button_destroy;
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  widget_class->focus = gtk_radio_button_focus;
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  button_class->clicked = gtk_radio_button_clicked;
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  check_button_class->draw_indicator = gtk_radio_button_draw_indicator;
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  class->group_changed = NULL;
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  /**
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   * GtkRadioButton::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 buttons that a radio button belongs
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   * to changes. This is emitted when a radio button switches from
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   * being alone to being part of a group of 2 or more buttons, or
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   * vice-versa, and when a button is moved from one group of 2 or
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   * more buttons to a different one, but not when the composition
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   * of the group that a button 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 (GtkRadioButtonClass, 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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  g_type_class_add_private (class, sizeof (GtkRadioButtonPriv));
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}
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static void
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gtk_radio_button_init (GtkRadioButton *radio_button)
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{
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  GtkRadioButtonPriv *priv;
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  radio_button->priv = G_TYPE_INSTANCE_GET_PRIVATE (radio_button,
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                                                    GTK_TYPE_RADIO_BUTTON,
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                                                    GtkRadioButtonPriv);
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  priv = radio_button->priv;
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  gtk_widget_set_has_window (GTK_WIDGET (radio_button), FALSE);
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  gtk_widget_set_receives_default (GTK_WIDGET (radio_button), FALSE);
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  GTK_TOGGLE_BUTTON (radio_button)->active = TRUE;
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  GTK_BUTTON (radio_button)->depress_on_activate = FALSE;
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  priv->group = g_slist_prepend (NULL, radio_button);
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  _gtk_button_set_depressed (GTK_BUTTON (radio_button), TRUE);
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  gtk_widget_set_state (GTK_WIDGET (radio_button), GTK_STATE_ACTIVE);
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}
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static void
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gtk_radio_button_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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  GtkRadioButton *radio_button;
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  radio_button = GTK_RADIO_BUTTON (object);
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  switch (prop_id)
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    {
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      GSList *slist;
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      GtkRadioButton *button;
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    case PROP_GROUP:
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        button = g_value_get_object (value);
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      if (button)
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	slist = gtk_radio_button_get_group (button);
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      else
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	slist = NULL;
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      gtk_radio_button_set_group (radio_button, 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_button_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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/**
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 * gtk_radio_button_set_group:
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 * @radio_button: a #GtkRadioButton.
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 * @group: an existing radio button group, such as one returned from
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 *  gtk_radio_button_get_group().
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 *
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 * Sets a #GtkRadioButton's group. It should be noted that this does not change
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 * the layout of your interface in any way, so if you are changing the group,
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 * it is likely you will need to re-arrange the user interface to reflect these
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 * changes.
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 */
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void
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gtk_radio_button_set_group (GtkRadioButton *radio_button,
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			    GSList         *group)
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{
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  GtkRadioButtonPriv *priv;
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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_BUTTON (radio_button));
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  g_return_if_fail (!g_slist_find (group, radio_button));
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  priv = radio_button->priv;
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  if (priv->group)
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    {
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      GSList *slist;
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      priv->group = g_slist_remove (priv->group, radio_button);
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      if (priv->group && !priv->group->next)
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	old_group_singleton = g_object_ref (priv->group->data);
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      for (slist = priv->group; slist; slist = slist->next)
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	{
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	  GtkRadioButton *tmp_button;
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	  tmp_button = slist->data;
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	  tmp_button->priv->group = priv->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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  priv->group = g_slist_prepend (group, radio_button);
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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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	  GtkRadioButton *tmp_button;
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	  tmp_button = slist->data;
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	  tmp_button->priv->group = priv->group;
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	}
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    }
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  g_object_ref (radio_button);
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  g_object_notify (G_OBJECT (radio_button), "group");
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  g_signal_emit (radio_button, 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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  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (radio_button), group == NULL);
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  g_object_unref (radio_button);
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}
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/**
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 * gtk_radio_button_new:
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 * @group: an existing radio button group, or %NULL if you are creating a new group.
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 *
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 * Creates a new #GtkRadioButton. To be of any practical value, a widget should
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 * then be packed into the radio button.
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 *
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 * Returns: a new radio button.
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 */
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GtkWidget*
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gtk_radio_button_new (GSList *group)
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{
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  GtkRadioButton *radio_button;
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  radio_button = g_object_new (GTK_TYPE_RADIO_BUTTON, NULL);
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  if (group)
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    gtk_radio_button_set_group (radio_button, group);
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  return GTK_WIDGET (radio_button);
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}
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/**
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 * gtk_radio_button_new_with_label:
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 * @group: an existing radio button group, or %NULL if you are creating a new
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 *  group.
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 * @label: the text label to display next to the radio button.
 | 
						|
 *
 | 
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 * Creates a new #GtkRadioButton with a text label.
 | 
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 *
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 * Returns: a new radio button.
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 */
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GtkWidget*
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gtk_radio_button_new_with_label (GSList      *group,
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				 const gchar *label)
 | 
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{
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  GtkWidget *radio_button;
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  radio_button = g_object_new (GTK_TYPE_RADIO_BUTTON, "label", label, NULL) ;
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  if (group)
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    gtk_radio_button_set_group (GTK_RADIO_BUTTON (radio_button), group);
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  return radio_button;
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}
 | 
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 | 
						|
 | 
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/**
 | 
						|
 * gtk_radio_button_new_with_mnemonic:
 | 
						|
 * @group: the radio button group
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						|
 * @label: the text of the button, with an underscore in front of the
 | 
						|
 *         mnemonic character
 | 
						|
 * @returns: a new #GtkRadioButton
 | 
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 *
 | 
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 * Creates a new #GtkRadioButton containing a label, adding it to the same 
 | 
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 * group as @group. The label will be created using 
 | 
						|
 * gtk_label_new_with_mnemonic(), so underscores in @label indicate the 
 | 
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 * mnemonic for the button.
 | 
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 **/
 | 
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GtkWidget*
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gtk_radio_button_new_with_mnemonic (GSList      *group,
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				    const gchar *label)
 | 
						|
{
 | 
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  GtkWidget *radio_button;
 | 
						|
 | 
						|
  radio_button = g_object_new (GTK_TYPE_RADIO_BUTTON, 
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			       "label", label, 
 | 
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			       "use-underline", TRUE, 
 | 
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			       NULL);
 | 
						|
 | 
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  if (group)
 | 
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    gtk_radio_button_set_group (GTK_RADIO_BUTTON (radio_button), group);
 | 
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 | 
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  return radio_button;
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}
 | 
						|
 | 
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/**
 | 
						|
 * gtk_radio_button_new_from_widget:
 | 
						|
 * @radio_group_member: an existing #GtkRadioButton.
 | 
						|
 *
 | 
						|
 * Creates a new #GtkRadioButton, adding it to the same group as @radio_group_member.
 | 
						|
 * As with gtk_radio_button_new(), a widget should be packed into the radio button.
 | 
						|
 *
 | 
						|
 * Returns: a new radio button.
 | 
						|
 */
 | 
						|
GtkWidget*
 | 
						|
gtk_radio_button_new_from_widget (GtkRadioButton *radio_group_member)
 | 
						|
{
 | 
						|
  GSList *l = NULL;
 | 
						|
  if (radio_group_member)
 | 
						|
    l = gtk_radio_button_get_group (radio_group_member);
 | 
						|
  return gtk_radio_button_new (l);
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
 * gtk_radio_button_new_with_label_from_widget:
 | 
						|
 * @radio_group_member: widget to get radio group from or %NULL
 | 
						|
 * @label: a text string to display next to the radio button.
 | 
						|
 *
 | 
						|
 * Creates a new #GtkRadioButton with a text label, adding it to the same group
 | 
						|
 * as @radio_group_member.
 | 
						|
 *
 | 
						|
 * Returns: a new radio button.
 | 
						|
 */
 | 
						|
GtkWidget*
 | 
						|
gtk_radio_button_new_with_label_from_widget (GtkRadioButton *radio_group_member,
 | 
						|
					     const gchar    *label)
 | 
						|
{
 | 
						|
  GSList *l = NULL;
 | 
						|
  if (radio_group_member)
 | 
						|
    l = gtk_radio_button_get_group (radio_group_member);
 | 
						|
  return gtk_radio_button_new_with_label (l, label);
 | 
						|
}
 | 
						|
 | 
						|
/**
 | 
						|
 * gtk_radio_button_new_with_mnemonic_from_widget:
 | 
						|
 * @radio_group_member: (allow-none): widget to get radio group from or %NULL
 | 
						|
 * @label: the text of the button, with an underscore in front of the
 | 
						|
 *         mnemonic character
 | 
						|
 * @returns: a new #GtkRadioButton
 | 
						|
 *
 | 
						|
 * Creates a new #GtkRadioButton containing a label. The label
 | 
						|
 * will be created using gtk_label_new_with_mnemonic(), so underscores
 | 
						|
 * in @label indicate the mnemonic for the button.
 | 
						|
 **/
 | 
						|
GtkWidget*
 | 
						|
gtk_radio_button_new_with_mnemonic_from_widget (GtkRadioButton *radio_group_member,
 | 
						|
					        const gchar    *label)
 | 
						|
{
 | 
						|
  GSList *l = NULL;
 | 
						|
  if (radio_group_member)
 | 
						|
    l = gtk_radio_button_get_group (radio_group_member);
 | 
						|
  return gtk_radio_button_new_with_mnemonic (l, label);
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
/**
 | 
						|
 * gtk_radio_button_get_group:
 | 
						|
 * @radio_button: a #GtkRadioButton.
 | 
						|
 *
 | 
						|
 * Retrieves the group assigned to a radio button.
 | 
						|
 *
 | 
						|
 * Return value: (element-type GtkRadioButton) (transfer none): a linked list
 | 
						|
 * containing all the radio buttons in the same group
 | 
						|
 * as @radio_button. The returned list is owned by the radio button
 | 
						|
 * and must not be modified or freed.
 | 
						|
 */
 | 
						|
GSList*
 | 
						|
gtk_radio_button_get_group (GtkRadioButton *radio_button)
 | 
						|
{
 | 
						|
  g_return_val_if_fail (GTK_IS_RADIO_BUTTON (radio_button), NULL);
 | 
						|
 | 
						|
  return radio_button->priv->group;
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
static void
 | 
						|
gtk_radio_button_destroy (GtkObject *object)
 | 
						|
{
 | 
						|
  GtkWidget *old_group_singleton = NULL;
 | 
						|
  GtkRadioButton *radio_button = GTK_RADIO_BUTTON (object);
 | 
						|
  GtkRadioButtonPriv *priv = radio_button->priv;
 | 
						|
  GtkRadioButton *tmp_button;
 | 
						|
  GSList *tmp_list;
 | 
						|
  gboolean was_in_group;
 | 
						|
 | 
						|
  was_in_group = priv->group && priv->group->next;
 | 
						|
 | 
						|
  priv->group = g_slist_remove (priv->group, radio_button);
 | 
						|
  if (priv->group && !priv->group->next)
 | 
						|
    old_group_singleton = priv->group->data;
 | 
						|
 | 
						|
  tmp_list = priv->group;
 | 
						|
 | 
						|
  while (tmp_list)
 | 
						|
    {
 | 
						|
      tmp_button = tmp_list->data;
 | 
						|
      tmp_list = tmp_list->next;
 | 
						|
 | 
						|
      tmp_button->priv->group = priv->group;
 | 
						|
    }
 | 
						|
 | 
						|
  /* this button is no longer in the group */
 | 
						|
  priv->group = NULL;
 | 
						|
 | 
						|
  if (old_group_singleton)
 | 
						|
    g_signal_emit (old_group_singleton, group_changed_signal, 0);
 | 
						|
  if (was_in_group)
 | 
						|
    g_signal_emit (radio_button, group_changed_signal, 0);
 | 
						|
 | 
						|
  GTK_OBJECT_CLASS (gtk_radio_button_parent_class)->destroy (object);
 | 
						|
}
 | 
						|
 | 
						|
static void
 | 
						|
get_coordinates (GtkWidget    *widget,
 | 
						|
		 GtkWidget    *reference,
 | 
						|
		 gint         *x,
 | 
						|
		 gint         *y)
 | 
						|
{
 | 
						|
  *x = widget->allocation.x + widget->allocation.width / 2;
 | 
						|
  *y = widget->allocation.y + widget->allocation.height / 2;
 | 
						|
  
 | 
						|
  gtk_widget_translate_coordinates (widget, reference, *x, *y, x, y);
 | 
						|
}
 | 
						|
 | 
						|
static gint
 | 
						|
left_right_compare (gconstpointer a,
 | 
						|
		    gconstpointer b,
 | 
						|
		    gpointer      data)
 | 
						|
{
 | 
						|
  gint x1, y1, x2, y2;
 | 
						|
 | 
						|
  get_coordinates ((GtkWidget *)a, data, &x1, &y1);
 | 
						|
  get_coordinates ((GtkWidget *)b, data, &x2, &y2);
 | 
						|
 | 
						|
  if (y1 == y2)
 | 
						|
    return (x1 < x2) ? -1 : ((x1 == x2) ? 0 : 1);
 | 
						|
  else
 | 
						|
    return (y1 < y2) ? -1 : 1;
 | 
						|
}
 | 
						|
 | 
						|
static gint
 | 
						|
up_down_compare (gconstpointer a,
 | 
						|
		 gconstpointer b,
 | 
						|
		 gpointer      data)
 | 
						|
{
 | 
						|
  gint x1, y1, x2, y2;
 | 
						|
  
 | 
						|
  get_coordinates ((GtkWidget *)a, data, &x1, &y1);
 | 
						|
  get_coordinates ((GtkWidget *)b, data, &x2, &y2);
 | 
						|
  
 | 
						|
  if (x1 == x2)
 | 
						|
    return (y1 < y2) ? -1 : ((y1 == y2) ? 0 : 1);
 | 
						|
  else
 | 
						|
    return (x1 < x2) ? -1 : 1;
 | 
						|
}
 | 
						|
 | 
						|
static gboolean
 | 
						|
gtk_radio_button_focus (GtkWidget         *widget,
 | 
						|
			GtkDirectionType   direction)
 | 
						|
{
 | 
						|
  GtkRadioButton *radio_button = GTK_RADIO_BUTTON (widget);
 | 
						|
  GtkRadioButtonPriv *priv = radio_button->priv;
 | 
						|
  GSList *tmp_slist;
 | 
						|
 | 
						|
  /* Radio buttons with draw_indicator unset focus "normally", since
 | 
						|
   * they look like buttons to the user.
 | 
						|
   */
 | 
						|
  if (!GTK_TOGGLE_BUTTON (widget)->draw_indicator)
 | 
						|
    return GTK_WIDGET_CLASS (gtk_radio_button_parent_class)->focus (widget, direction);
 | 
						|
  
 | 
						|
  if (gtk_widget_is_focus (widget))
 | 
						|
    {
 | 
						|
      GtkSettings *settings = gtk_widget_get_settings (widget);
 | 
						|
      GSList *focus_list, *tmp_list;
 | 
						|
      GtkWidget *toplevel = gtk_widget_get_toplevel (widget);
 | 
						|
      GtkWidget *new_focus = NULL;
 | 
						|
      gboolean cursor_only;
 | 
						|
      gboolean wrap_around;
 | 
						|
 | 
						|
      switch (direction)
 | 
						|
	{
 | 
						|
	case GTK_DIR_LEFT:
 | 
						|
	case GTK_DIR_RIGHT:
 | 
						|
	  focus_list = g_slist_copy (priv->group);
 | 
						|
	  focus_list = g_slist_sort_with_data (focus_list, left_right_compare, toplevel);
 | 
						|
	  break;
 | 
						|
	case GTK_DIR_UP:
 | 
						|
	case GTK_DIR_DOWN:
 | 
						|
	  focus_list = g_slist_copy (priv->group);
 | 
						|
	  focus_list = g_slist_sort_with_data (focus_list, up_down_compare, toplevel);
 | 
						|
	  break;
 | 
						|
	case GTK_DIR_TAB_FORWARD:
 | 
						|
	case GTK_DIR_TAB_BACKWARD:
 | 
						|
          /* fall through */
 | 
						|
        default:
 | 
						|
	  return FALSE;
 | 
						|
	}
 | 
						|
 | 
						|
      if (direction == GTK_DIR_LEFT || direction == GTK_DIR_UP)
 | 
						|
	focus_list = g_slist_reverse (focus_list);
 | 
						|
 | 
						|
      tmp_list = g_slist_find (focus_list, widget);
 | 
						|
 | 
						|
      if (tmp_list)
 | 
						|
	{
 | 
						|
	  tmp_list = tmp_list->next;
 | 
						|
	  
 | 
						|
	  while (tmp_list)
 | 
						|
	    {
 | 
						|
	      GtkWidget *child = tmp_list->data;
 | 
						|
	      
 | 
						|
	      if (gtk_widget_get_mapped (child) && gtk_widget_is_sensitive (child))
 | 
						|
		{
 | 
						|
		  new_focus = child;
 | 
						|
		  break;
 | 
						|
		}
 | 
						|
 | 
						|
	      tmp_list = tmp_list->next;
 | 
						|
	    }
 | 
						|
	}
 | 
						|
 | 
						|
      g_object_get (settings,
 | 
						|
                    "gtk-keynav-cursor-only", &cursor_only,
 | 
						|
                    "gtk-keynav-wrap-around", &wrap_around,
 | 
						|
                    NULL);
 | 
						|
 | 
						|
      if (!new_focus)
 | 
						|
	{
 | 
						|
          if (cursor_only)
 | 
						|
            {
 | 
						|
              g_slist_free (focus_list);
 | 
						|
              return FALSE;
 | 
						|
            }
 | 
						|
 | 
						|
          if (!wrap_around)
 | 
						|
            {
 | 
						|
              g_slist_free (focus_list);
 | 
						|
              gtk_widget_error_bell (widget);
 | 
						|
              return TRUE;
 | 
						|
            }
 | 
						|
 | 
						|
	  tmp_list = focus_list;
 | 
						|
 | 
						|
	  while (tmp_list)
 | 
						|
	    {
 | 
						|
	      GtkWidget *child = tmp_list->data;
 | 
						|
	      
 | 
						|
	      if (gtk_widget_get_mapped (child) && gtk_widget_is_sensitive (child))
 | 
						|
		{
 | 
						|
		  new_focus = child;
 | 
						|
		  break;
 | 
						|
		}
 | 
						|
	      
 | 
						|
	      tmp_list = tmp_list->next;
 | 
						|
	    }
 | 
						|
	}
 | 
						|
      
 | 
						|
      g_slist_free (focus_list);
 | 
						|
 | 
						|
      if (new_focus)
 | 
						|
	{
 | 
						|
	  gtk_widget_grab_focus (new_focus);
 | 
						|
 | 
						|
          if (!cursor_only)
 | 
						|
            gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (new_focus), TRUE);
 | 
						|
	}
 | 
						|
 | 
						|
      return TRUE;
 | 
						|
    }
 | 
						|
  else
 | 
						|
    {
 | 
						|
      GtkRadioButton *selected_button = NULL;
 | 
						|
      
 | 
						|
      /* We accept the focus if, we don't have the focus and
 | 
						|
       *  - we are the currently active button in the group
 | 
						|
       *  - there is no currently active radio button.
 | 
						|
       */
 | 
						|
      
 | 
						|
      tmp_slist = priv->group;
 | 
						|
      while (tmp_slist)
 | 
						|
	{
 | 
						|
	  if (GTK_TOGGLE_BUTTON (tmp_slist->data)->active)
 | 
						|
	    selected_button = tmp_slist->data;
 | 
						|
	  tmp_slist = tmp_slist->next;
 | 
						|
	}
 | 
						|
      
 | 
						|
      if (selected_button && selected_button != radio_button)
 | 
						|
	return FALSE;
 | 
						|
 | 
						|
      gtk_widget_grab_focus (widget);
 | 
						|
      return TRUE;
 | 
						|
    }
 | 
						|
}
 | 
						|
 | 
						|
static void
 | 
						|
gtk_radio_button_clicked (GtkButton *button)
 | 
						|
{
 | 
						|
  GtkRadioButton *radio_button = GTK_RADIO_BUTTON (button);
 | 
						|
  GtkRadioButtonPriv *priv = radio_button->priv;
 | 
						|
  GtkToggleButton *toggle_button = GTK_TOGGLE_BUTTON (button);
 | 
						|
  GtkToggleButton *tmp_button;
 | 
						|
  GtkStateType new_state;
 | 
						|
  GSList *tmp_list;
 | 
						|
  gint toggled;
 | 
						|
  gboolean depressed;
 | 
						|
 | 
						|
  toggled = FALSE;
 | 
						|
 | 
						|
  g_object_ref (GTK_WIDGET (button));
 | 
						|
 | 
						|
  if (toggle_button->active)
 | 
						|
    {
 | 
						|
      tmp_button = NULL;
 | 
						|
      tmp_list = priv->group;
 | 
						|
 | 
						|
      while (tmp_list)
 | 
						|
	{
 | 
						|
	  tmp_button = tmp_list->data;
 | 
						|
	  tmp_list = tmp_list->next;
 | 
						|
 | 
						|
	  if (tmp_button->active && tmp_button != toggle_button)
 | 
						|
	    break;
 | 
						|
 | 
						|
	  tmp_button = NULL;
 | 
						|
	}
 | 
						|
 | 
						|
      if (!tmp_button)
 | 
						|
	{
 | 
						|
	  new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_ACTIVE);
 | 
						|
	}
 | 
						|
      else
 | 
						|
	{
 | 
						|
	  toggled = TRUE;
 | 
						|
	  toggle_button->active = !toggle_button->active;
 | 
						|
	  new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_NORMAL);
 | 
						|
	}
 | 
						|
    }
 | 
						|
  else
 | 
						|
    {
 | 
						|
      toggled = TRUE;
 | 
						|
      toggle_button->active = !toggle_button->active;
 | 
						|
 | 
						|
      tmp_list = priv->group;
 | 
						|
      while (tmp_list)
 | 
						|
	{
 | 
						|
	  tmp_button = tmp_list->data;
 | 
						|
	  tmp_list = tmp_list->next;
 | 
						|
 | 
						|
	  if (tmp_button->active && (tmp_button != toggle_button))
 | 
						|
	    {
 | 
						|
	      gtk_button_clicked (GTK_BUTTON (tmp_button));
 | 
						|
	      break;
 | 
						|
	    }
 | 
						|
	}
 | 
						|
 | 
						|
      new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_ACTIVE);
 | 
						|
    }
 | 
						|
 | 
						|
  if (toggle_button->inconsistent)
 | 
						|
    depressed = FALSE;
 | 
						|
  else if (button->in_button && button->button_down)
 | 
						|
    depressed = !toggle_button->active;
 | 
						|
  else
 | 
						|
    depressed = toggle_button->active;
 | 
						|
 | 
						|
  if (gtk_widget_get_state (GTK_WIDGET (button)) != new_state)
 | 
						|
    gtk_widget_set_state (GTK_WIDGET (button), new_state);
 | 
						|
 | 
						|
  if (toggled)
 | 
						|
    {
 | 
						|
      gtk_toggle_button_toggled (toggle_button);
 | 
						|
 | 
						|
      g_object_notify (G_OBJECT (toggle_button), "active");
 | 
						|
    }
 | 
						|
 | 
						|
  _gtk_button_set_depressed (button, depressed);
 | 
						|
 | 
						|
  gtk_widget_queue_draw (GTK_WIDGET (button));
 | 
						|
 | 
						|
  g_object_unref (button);
 | 
						|
}
 | 
						|
 | 
						|
static void
 | 
						|
gtk_radio_button_draw_indicator (GtkCheckButton *check_button,
 | 
						|
				 GdkRectangle   *area)
 | 
						|
{
 | 
						|
  GtkWidget *widget;
 | 
						|
  GtkWidget *child;
 | 
						|
  GtkButton *button;
 | 
						|
  GtkToggleButton *toggle_button;
 | 
						|
  GtkStateType state_type;
 | 
						|
  GtkShadowType shadow_type;
 | 
						|
  gint x, y;
 | 
						|
  gint indicator_size, indicator_spacing;
 | 
						|
  gint focus_width;
 | 
						|
  gint focus_pad;
 | 
						|
  guint border_width;
 | 
						|
  gboolean interior_focus;
 | 
						|
 | 
						|
  widget = GTK_WIDGET (check_button);
 | 
						|
 | 
						|
  if (gtk_widget_is_drawable (widget))
 | 
						|
    {
 | 
						|
      button = GTK_BUTTON (check_button);
 | 
						|
      toggle_button = GTK_TOGGLE_BUTTON (check_button);
 | 
						|
 | 
						|
      border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
 | 
						|
 | 
						|
      gtk_widget_style_get (widget,
 | 
						|
			    "interior-focus", &interior_focus,
 | 
						|
			    "focus-line-width", &focus_width,
 | 
						|
			    "focus-padding", &focus_pad,
 | 
						|
			    NULL);
 | 
						|
 | 
						|
      _gtk_check_button_get_props (check_button, &indicator_size, &indicator_spacing);
 | 
						|
 | 
						|
      x = widget->allocation.x + indicator_spacing + border_width;
 | 
						|
      y = widget->allocation.y + (widget->allocation.height - indicator_size) / 2;
 | 
						|
 | 
						|
      child = gtk_bin_get_child (GTK_BIN (check_button));
 | 
						|
      if (!interior_focus || !(child && gtk_widget_get_visible (child)))
 | 
						|
	x += focus_width + focus_pad;      
 | 
						|
 | 
						|
      if (toggle_button->inconsistent)
 | 
						|
	shadow_type = GTK_SHADOW_ETCHED_IN;
 | 
						|
      else if (toggle_button->active)
 | 
						|
	shadow_type = GTK_SHADOW_IN;
 | 
						|
      else
 | 
						|
	shadow_type = GTK_SHADOW_OUT;
 | 
						|
 | 
						|
      if (button->activate_timeout || (button->button_down && button->in_button))
 | 
						|
	state_type = GTK_STATE_ACTIVE;
 | 
						|
      else if (button->in_button)
 | 
						|
	state_type = GTK_STATE_PRELIGHT;
 | 
						|
      else if (!gtk_widget_is_sensitive (widget))
 | 
						|
	state_type = GTK_STATE_INSENSITIVE;
 | 
						|
      else
 | 
						|
	state_type = GTK_STATE_NORMAL;
 | 
						|
 | 
						|
      if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
 | 
						|
	x = widget->allocation.x + widget->allocation.width - (indicator_size + x - widget->allocation.x);
 | 
						|
 | 
						|
      if (gtk_widget_get_state (widget) == GTK_STATE_PRELIGHT)
 | 
						|
	{
 | 
						|
	  GdkRectangle restrict_area;
 | 
						|
	  GdkRectangle new_area;
 | 
						|
	      
 | 
						|
	  restrict_area.x = widget->allocation.x + border_width;
 | 
						|
	  restrict_area.y = widget->allocation.y + border_width;
 | 
						|
	  restrict_area.width = widget->allocation.width - (2 * border_width);
 | 
						|
	  restrict_area.height = widget->allocation.height - (2 * border_width);
 | 
						|
	  
 | 
						|
	  if (gdk_rectangle_intersect (area, &restrict_area, &new_area))
 | 
						|
	    {
 | 
						|
	      gtk_paint_flat_box (widget->style, widget->window, GTK_STATE_PRELIGHT,
 | 
						|
				  GTK_SHADOW_ETCHED_OUT, 
 | 
						|
				  area, widget, "checkbutton",
 | 
						|
				  new_area.x, new_area.y,
 | 
						|
				  new_area.width, new_area.height);
 | 
						|
	    }
 | 
						|
	}
 | 
						|
 | 
						|
      gtk_paint_option (widget->style, widget->window,
 | 
						|
			state_type, shadow_type,
 | 
						|
			area, widget, "radiobutton",
 | 
						|
			x, y, indicator_size, indicator_size);
 | 
						|
    }
 | 
						|
}
 |