/*  xfce4
 *  OBox Copyright (C) 2002 Red Hat Inc. based on GtkHBox 
 *  Copyright (C) 2002 Olivier Fourdan (fourdan@xfce.org)
 *  Copyright (C) 2006 Jani Monoses (jani@ubuntu.com) 
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

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

#include <gdk/gdk.h>
#include <gtk/gtkhbox.h>
#include <gtk/gtkvbox.h>

#include "xfce_hvbox.h"

/* Forward declarations */

static void xfce_hvbox_class_init (XfceHVBoxClass * class);
static void xfce_hvbox_init (XfceHVBox * hvbox);
static void xfce_hvbox_size_request  (GtkWidget       *widget,
				     GtkRequisition  *requisition);
static void xfce_hvbox_size_allocate (GtkWidget       *widget,
				     GtkAllocation   *allocation);


GtkType
xfce_hvbox_get_type (void)
{
    static GtkType hvbox_type = 0;

    if (!hvbox_type)
    {
        static const GTypeInfo hvbox_info = {
            sizeof (XfceHVBoxClass),
            NULL,               /* base_init */
            NULL,               /* base_finalize */
            (GClassInitFunc) xfce_hvbox_class_init,
            NULL,               /* class_finalize */
            NULL,               /* class_data */
            sizeof (XfceHVBox),
            0,                  /* n_preallocs */
            (GInstanceInitFunc) xfce_hvbox_init,
	    NULL                /* value_table */
        };

        hvbox_type =
            g_type_register_static (GTK_TYPE_BOX,
                                    "XfceHVBox", &hvbox_info,
                                    0);
    }

    return hvbox_type;
}

static void
xfce_hvbox_class_init (XfceHVBoxClass * class)
{
    GtkWidgetClass *widget_class;

    widget_class = (GtkWidgetClass *) class;

    widget_class->size_request = xfce_hvbox_size_request;
    widget_class->size_allocate = xfce_hvbox_size_allocate;
}

static void
xfce_hvbox_init (XfceHVBox * hvbox)
{
    hvbox->orientation = GTK_ORIENTATION_HORIZONTAL;
}

/**
 * xfce_hvbox_new:
 *
 * Creates a new #XfceHVBox container widget.
 *
 * Return value: the newly allocated #XfceHVBox container widget.
 **/
GtkWidget*
xfce_hvbox_new (void)
{
    XfceHVBox *hvbox;
    
    hvbox = g_object_new (xfce_hvbox_get_type (), NULL);

    return GTK_WIDGET (hvbox);
}

static GtkWidgetClass*
get_class (XfceHVBox *hvbox)     
{
    GtkWidgetClass *klass;

    switch (hvbox->orientation)
        {
        case GTK_ORIENTATION_HORIZONTAL:
            klass = GTK_WIDGET_CLASS (gtk_type_class (GTK_TYPE_HBOX));
            break;
        case GTK_ORIENTATION_VERTICAL:
            klass = GTK_WIDGET_CLASS (gtk_type_class (GTK_TYPE_VBOX));
            break;
        default:
            g_assert_not_reached ();
            klass = NULL;
            break;
        }

    return klass;
}

static void
xfce_hvbox_size_request (GtkWidget      *widget,
		        GtkRequisition *requisition)
{
    GtkWidgetClass *klass;
    XfceHVBox *hvbox;

    hvbox = XFCE_HVBOX (widget);

    klass = get_class (hvbox);

    klass->size_request (widget, requisition);
}

static void
xfce_hvbox_size_allocate (GtkWidget     *widget,
			 GtkAllocation *allocation)
{
    GtkWidgetClass *klass;
    XfceHVBox *hvbox;

    hvbox = XFCE_HVBOX (widget);

    klass = get_class (hvbox);

    klass->size_allocate (widget, allocation);
}

void
xfce_hvbox_set_orientation (XfceHVBox       *hvbox,
                           GtkOrientation  orientation)
{
    g_return_if_fail (XFCE_IS_HVBOX (hvbox));

    if (hvbox->orientation == orientation)
      return;
    
    hvbox->orientation = orientation;

    gtk_widget_queue_resize (GTK_WIDGET (hvbox));
}