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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-task-bar.c
 *
 * Copyright (C) 2001  Ximian, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Author: Ettore Perazzoli <ettore@ximian.com>
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "e-task-bar.h"

#include <gal/util/e-util.h>


#define PARENT_TYPE gtk_hbox_get_type ()
static GtkHBoxClass *parent_class = NULL;


/* GtkObject methods.  */

static void
impl_destroy (GtkObject *object)
{
    ETaskBar *task_bar;

    task_bar = E_TASK_BAR (object);

    /* Nothing to do here.  */

    (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}


static void
class_init (GtkObjectClass *object_class)
{
    parent_class = gtk_type_class (PARENT_TYPE);

    object_class->destroy = impl_destroy;
}

static void
init (ETaskBar *task_bar)
{
    /* Nothing to do here.  */
}


void
e_task_bar_construct (ETaskBar *task_bar)
{
    g_return_if_fail (task_bar != NULL);
    g_return_if_fail (E_IS_TASK_BAR (task_bar));

    /* Nothing to do here.  */
}

GtkWidget *
e_task_bar_new (void)
{
    ETaskBar *task_bar;

    task_bar = gtk_type_new (e_task_bar_get_type ());
    e_task_bar_construct (task_bar);

    return GTK_WIDGET (task_bar);
}

void
e_task_bar_prepend_task (ETaskBar *task_bar,
             ETaskWidget *task_widget)
{
    GtkBoxChild *child_info;
    GtkBox *box;

    g_return_if_fail (task_bar != NULL);
    g_return_if_fail (E_IS_TASK_BAR (task_bar));
    g_return_if_fail (task_widget != NULL);
    g_return_if_fail (E_IS_TASK_WIDGET (task_widget));

    /* Hah hah.  GTK+ sucks.  This is adapted from `gtkhbox.c'.  */

    child_info = g_new (GtkBoxChild, 1);
    child_info->widget = GTK_WIDGET (task_widget);
    child_info->padding = 0;
    child_info->expand = TRUE;
    child_info->fill = TRUE;
    child_info->pack = GTK_PACK_START;

    box = GTK_BOX (task_bar);

    box->children = g_list_append (box->children, child_info);

    gtk_widget_set_parent (GTK_WIDGET (task_widget), GTK_WIDGET (task_bar));

    if (GTK_WIDGET_REALIZED (task_bar))
        gtk_widget_realize (GTK_WIDGET (task_widget));

    if (GTK_WIDGET_VISIBLE (task_bar) && GTK_WIDGET_VISIBLE (task_widget)) {
        if (GTK_WIDGET_MAPPED (task_bar))
            gtk_widget_map (GTK_WIDGET (task_widget));
        gtk_widget_queue_resize (GTK_WIDGET (task_widget));
    }
}

void
e_task_bar_remove_task (ETaskBar *task_bar,
            int n)
{
    ETaskWidget *task_widget;

    g_return_if_fail (task_bar != NULL);
    g_return_if_fail (E_IS_TASK_BAR (task_bar));
    g_return_if_fail (n >= 0);

    task_widget = e_task_bar_get_task_widget (task_bar, n);
    gtk_widget_destroy (GTK_WIDGET (task_widget));
}
    
ETaskWidget *
e_task_bar_get_task_widget (ETaskBar *task_bar,
                int n)
{
    GtkBoxChild *child_info;

    g_return_val_if_fail (task_bar != NULL, NULL);
    g_return_val_if_fail (E_IS_TASK_BAR (task_bar), NULL);

    child_info = (GtkBoxChild *) g_list_nth (GTK_BOX (task_bar)->children, n)->data;

    return E_TASK_WIDGET (child_info->widget);
}


E_MAKE_TYPE (e_task_bar, "ETaskBar", ETaskBar, class_init, init, PARENT_TYPE)