/*  $Id$
 *
 *  OBox Copyright (c) 2002      Red Hat Inc. based on GtkHBox
 *  Copyright      (c) 2006      Jani Monoses <jani@ubuntu.com>
 *  Copyright      (c) 2006-2007 Jasper Huijsmans <jasper@xfce.org>
 *
 * 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 <libxfce4panel/xfce-panel-macros.h>
#include <libxfce4panel/xfce-hvbox.h>
#include <libxfce4panel/libxfce4panel-alias.h>



/* prototypes */
static void  xfce_hvbox_class_init     (XfceHVBoxClass *klass);
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 type = G_TYPE_INVALID;

  if (G_UNLIKELY (type == G_TYPE_INVALID))
    {
        type = _panel_g_type_register_simple (GTK_TYPE_BOX,
                                              "XfceHVBox",
                                              sizeof (XfceHVBoxClass),
                                              xfce_hvbox_class_init,
                                              sizeof (XfceHVBox),
                                              NULL);
    }

    return type;
}



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

    widget_class = (GtkWidgetClass *) klass;

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



static gpointer
xfce_hvbox_get_class (XfceHVBox *hvbox)
{
    GType    type;
    gpointer klass;

    if (hvbox->orientation == GTK_ORIENTATION_HORIZONTAL)
        type = GTK_TYPE_HBOX;
    else
        type = GTK_TYPE_VBOX;

    /* peek the class, this only works if the class already exists */
    klass = g_type_class_peek (type);
  
    /* return the type or create the class */
    return klass ? klass : g_type_class_ref (type);
}



static void
xfce_hvbox_size_request (GtkWidget      *widget,
                         GtkRequisition *requisition)
{
    gpointer klass;

    /* get the widget class */
    klass = xfce_hvbox_get_class (XFCE_HVBOX (widget));
  
    /* request the size */
    (*GTK_WIDGET_CLASS (klass)->size_request) (widget, requisition);
}



static void
xfce_hvbox_size_allocate (GtkWidget     *widget,
                          GtkAllocation *allocation)
{
    gpointer klass;

    /* get the widget class */
    klass = xfce_hvbox_get_class (XFCE_HVBOX (widget));

    /* allocate the size */
    (*GTK_WIDGET_CLASS (klass)->size_allocate) (widget, allocation);
}



/**
 * xfce_hvbox_new:
 * @orientation : Orientation of the #XfceHVBox
 * @homogeneous : whether all children should be allocated the same size
 * @spacing     : spacing between #XfceHVBox children
 *
 * Creates a new #XfceHVBox container widget.
 *
 * Return value: the newly allocated #XfceHVBox container widget.
 **/
GtkWidget *
xfce_hvbox_new (GtkOrientation orientation,
                gboolean       homogeneous,
                gint           spacing)
{
    GtkWidget *box;

    box = g_object_new (XFCE_TYPE_HVBOX,
                        "homogeneous", homogeneous,
                        "spacing", spacing,
                        NULL);

    XFCE_HVBOX (box)->orientation = orientation;

    return box;
}



/**
 * xfce_hvbox_set_orientation:
 * @hvbox       : #XfceHVBox
 * @orientation : the new orientation of the #XfceHVBox
 *
 * Set the new orientation of the #XfceHVBox container widget.
 **/
void
xfce_hvbox_set_orientation (XfceHVBox      *hvbox,
                            GtkOrientation  orientation)
{
    _panel_return_if_fail (XFCE_IS_HVBOX (hvbox));

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

    hvbox->orientation = orientation;

    gtk_widget_queue_resize (GTK_WIDGET (hvbox));
}



#define __XFCE_HVBOX_C__
#include <libxfce4panel/libxfce4panel-aliasdef.c>