path: root/lib/egg/eggtoolbar.c

/* GTK - The GIMP Toolkit
 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
 * GtkToolbar copyright (C) Federico Mena
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser 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.
 */

/*
 * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
 * file for a list of people on the GTK+ Team.  See the ChangeLog
 * files for a list of changes.  These files are distributed with
 * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
 */

#include <gtk/gtkarrow.h>
#include "eggtoolbar.h"
#include "eggradiotoolbutton.h"
#include "eggseparatortoolitem.h"
#include <gtk/gtkmenu.h>
#include <gtk/gtkradiobutton.h>
#include <gtk/gtktoolbar.h>

#define DEFAULT_IPADDING 2
#define DEFAULT_SPACE_SIZE  5
#define DEFAULT_SPACE_STYLE GTK_TOOLBAR_SPACE_LINE

#define DEFAULT_ICON_SIZE GTK_ICON_SIZE_LARGE_TOOLBAR
#define DEFAULT_TOOLBAR_STYLE GTK_TOOLBAR_BOTH

#define SPACE_LINE_DIVISION 10
#define SPACE_LINE_START    3
#define SPACE_LINE_END      7

#define TOOLBAR_ITEM_VISIBLE(item) \
(GTK_WIDGET_VISIBLE (item) && \
((toolbar->orientation == GTK_ORIENTATION_HORIZONTAL && item->visible_horizontal) || \
 (toolbar->orientation == GTK_ORIENTATION_VERTICAL && item->visible_vertical)))

#ifndef _
#  define _(s) (s)
#endif

enum {
  PROP_0,
  PROP_ORIENTATION,
  PROP_TOOLBAR_STYLE,
  PROP_SHOW_ARROW
};

enum {
  ORIENTATION_CHANGED,
  STYLE_CHANGED,
  POPUP_CONTEXT_MENU,
  LAST_SIGNAL
};

static void egg_toolbar_init       (EggToolbar      *toolbar);
static void egg_toolbar_class_init (EggToolbarClass *klass);

static void egg_toolbar_set_property (GObject      *object,
                      guint         prop_id,
                      const GValue *value,
                      GParamSpec   *pspec);
static void egg_toolbar_get_property (GObject      *object,
                      guint         prop_id,
                      GValue       *value,
                      GParamSpec   *pspec);

static gint     egg_toolbar_expose         (GtkWidget        *widget,
                        GdkEventExpose   *event);
static void     egg_toolbar_realize        (GtkWidget        *widget);
static void     egg_toolbar_size_request   (GtkWidget        *widget,
                        GtkRequisition   *requisition);
static void     egg_toolbar_size_allocate  (GtkWidget        *widget,
                        GtkAllocation    *allocation);
static void     egg_toolbar_style_set      (GtkWidget        *widget,
                        GtkStyle         *prev_style);
static void     egg_toolbar_direction_changed (GtkWidget        *widget,
                                               GtkTextDirection  previous_direction);

static gboolean egg_toolbar_focus          (GtkWidget        *widget,
                        GtkDirectionType  dir);
static void     egg_toolbar_screen_changed (GtkWidget        *widget,
                        GdkScreen        *previous_screen);

static void  egg_toolbar_add        (GtkContainer *container,
                     GtkWidget    *widget);
static void  egg_toolbar_remove     (GtkContainer *container,
                     GtkWidget    *widget);
static void  egg_toolbar_forall     (GtkContainer *container,
                     gboolean      include_internals,
                     GtkCallback   callback,
                     gpointer      callback_data);
static GType egg_toolbar_child_type (GtkContainer *container);


static void egg_toolbar_real_orientation_changed (EggToolbar      *toolbar,
                          GtkOrientation   orientation);
static void egg_toolbar_real_style_changed       (EggToolbar      *toolbar,
                          GtkToolbarStyle  style);

static gboolean             egg_toolbar_button_press         (GtkWidget      *button,
                                  GdkEventButton *event,
                                  EggToolbar     *toolbar);
static void                 egg_toolbar_arrow_button_press   (GtkWidget      *button,
                                  GdkEventButton *event,
                                  EggToolbar     *toolbar);
static void                 egg_toolbar_update_button_relief (EggToolbar     *toolbar);
static GtkReliefStyle       get_button_relief                (EggToolbar     *toolbar);
static gint                 get_space_size                   (EggToolbar     *toolbar);
static GtkToolbarSpaceStyle get_space_style                  (EggToolbar     *toolbar);

static GtkWidget *egg_toolbar_internal_insert_element (EggToolbar          *toolbar,
                               EggToolbarChildType  type,
                               GtkWidget           *widget,
                               const char          *text,
                               const char          *tooltip_text,
                               const char          *tooltip_private_text,
                               GtkWidget           *icon,
                               GtkSignalFunc        callback,
                               gpointer             user_data,
                               gint                 position,
                               gboolean             use_stock);


#define PRIVATE_KEY "egg-toolbar-private"

#define EGG_TOOLBAR_GET_PRIVATE(toolbar) (g_object_get_data (G_OBJECT (toolbar), PRIVATE_KEY))

typedef struct
{
  GList     *items;
  GList     *first_non_fitting_item;
  
  gint       total_button_maxw;
  gint       total_button_maxh;

  GtkWidget *button;
  GtkWidget *arrow;
  
  gboolean   show_arrow;
} EggToolbarPrivate;

static GtkContainerClass *parent_class = NULL;
static guint toolbar_signals [LAST_SIGNAL] = { 0 };

GType
egg_toolbar_get_type (void)
{
  static GtkType type = 0;

  if (!type)
    {
      static const GTypeInfo type_info =
    {
      sizeof (EggToolbarClass),
      (GBaseInitFunc) NULL,
      (GBaseFinalizeFunc) NULL,
      (GClassInitFunc) egg_toolbar_class_init,
      (GClassFinalizeFunc) NULL,
      NULL,        
      sizeof (EggToolbar),
      0, /* n_preallocs */
      (GInstanceInitFunc) egg_toolbar_init,
    };

      type = g_type_register_static (GTK_TYPE_CONTAINER,
                     "EggToolbar",
                     &type_info, 0);
    }
  
  return type;
}

static void
egg_toolbar_class_init (EggToolbarClass *klass)
{
  GObjectClass *gobject_class;
  GtkWidgetClass *widget_class;
  GtkContainerClass *container_class;

  parent_class = g_type_class_peek_parent (klass);
  
  gobject_class = (GObjectClass *)klass;
  widget_class = (GtkWidgetClass *)klass;
  container_class = (GtkContainerClass *)klass;
  
  gobject_class->set_property = egg_toolbar_set_property;
  gobject_class->get_property = egg_toolbar_get_property;

  widget_class->expose_event = egg_toolbar_expose;
  widget_class->size_request = egg_toolbar_size_request;
  widget_class->size_allocate = egg_toolbar_size_allocate;
  widget_class->style_set = egg_toolbar_style_set;
  widget_class->direction_changed = egg_toolbar_direction_changed;
  widget_class->focus = egg_toolbar_focus;
  widget_class->screen_changed = egg_toolbar_screen_changed;
  widget_class->realize = egg_toolbar_realize;
  
  container_class->add    = egg_toolbar_add;
  container_class->remove = egg_toolbar_remove;
  container_class->forall = egg_toolbar_forall;
  container_class->child_type = egg_toolbar_child_type;
  
  klass->orientation_changed = egg_toolbar_real_orientation_changed;
  klass->style_changed = egg_toolbar_real_style_changed;

  toolbar_signals[ORIENTATION_CHANGED] =
    g_signal_new ("orientation_changed",
          G_OBJECT_CLASS_TYPE (klass),
          G_SIGNAL_RUN_FIRST,
          G_STRUCT_OFFSET (EggToolbarClass, orientation_changed),
          NULL, NULL,
          g_cclosure_marshal_VOID__ENUM,
          G_TYPE_NONE, 1,
          GTK_TYPE_ORIENTATION);
  toolbar_signals[STYLE_CHANGED] =
    g_signal_new ("style_changed",
          G_OBJECT_CLASS_TYPE (klass),
          G_SIGNAL_RUN_FIRST,
          G_STRUCT_OFFSET (EggToolbarClass, style_changed),
          NULL, NULL,
          g_cclosure_marshal_VOID__ENUM,
          G_TYPE_NONE, 1,
          GTK_TYPE_TOOLBAR_STYLE);

  toolbar_signals[POPUP_CONTEXT_MENU] =
    g_signal_new ("popup_context_menu",
          G_OBJECT_CLASS_TYPE (klass),
          G_SIGNAL_RUN_FIRST,
          G_STRUCT_OFFSET (EggToolbarClass, popup_context_menu),
          NULL, NULL,
          g_cclosure_marshal_VOID__VOID,
          G_TYPE_NONE, 0);
  
  g_object_class_install_property (gobject_class,
                   PROP_ORIENTATION,
                   g_param_spec_enum ("orientation",
                              _("Orientation"),
                              _("The orientation of the toolbar"),
                              GTK_TYPE_ORIENTATION,
                              GTK_ORIENTATION_HORIZONTAL,
                              G_PARAM_READWRITE));

  g_object_class_install_property (gobject_class,
                   PROP_TOOLBAR_STYLE,
                   g_param_spec_enum ("toolbar_style",
                              _("Toolbar Style"),
                              _("How to draw the toolbar"),
                              GTK_TYPE_TOOLBAR_STYLE,
                              GTK_TOOLBAR_ICONS,
                              G_PARAM_READWRITE));
  g_object_class_install_property (gobject_class,
                   PROP_SHOW_ARROW,
                   g_param_spec_boolean ("show_arrow",
                             _("Show Arrow"),
                             _("If an arrow should be shown if the toolbar doesn't fit"),
                             FALSE,
                             G_PARAM_READWRITE));

  gtk_widget_class_install_style_property (widget_class,
                       g_param_spec_int ("space_size",
                                 _("Spacer size"),
                                 _("Size of spacers"),
                                 0,
                                 G_MAXINT,
                                                             DEFAULT_SPACE_SIZE,
                                 G_PARAM_READABLE));
  
  gtk_widget_class_install_style_property (widget_class,
                       g_param_spec_int ("internal_padding",
                                 _("Internal padding"),
                                 _("Amount of border space between the toolbar shadow and the buttons"),
                                 0,
                                 G_MAXINT,
                                                             DEFAULT_IPADDING,
                                                             G_PARAM_READABLE));

  gtk_widget_class_install_style_property (widget_class,
                       g_param_spec_enum ("space_style",
                                 _("Space style"),
                                 _("Whether spacers are vertical lines or just blank"),
                                                              GTK_TYPE_TOOLBAR_SPACE_STYLE,
                                                              DEFAULT_SPACE_STYLE,
                                                              G_PARAM_READABLE));
  
  gtk_widget_class_install_style_property (widget_class,
                       g_param_spec_enum ("button_relief",
                                  _("Button relief"),
                                  _("Type of bevel around toolbar buttons"),
                                                              GTK_TYPE_RELIEF_STYLE,
                                                              GTK_RELIEF_NONE,
                                                              G_PARAM_READABLE));
  gtk_widget_class_install_style_property (widget_class,
                                           g_param_spec_enum ("shadow_type",
                                                              _("Shadow type"),
                                                              _("Style of bevel around the toolbar"),
                                                              GTK_TYPE_SHADOW_TYPE,
                                                              GTK_SHADOW_OUT,
                                                              G_PARAM_READABLE));

  gtk_settings_install_property (g_param_spec_enum ("gtk-toolbar-style",
                                                    _("Toolbar style"),
                                                    _("Whether default toolbars have text only, text and icons, icons only, etc."),
                                                    GTK_TYPE_TOOLBAR_STYLE,
                                                    DEFAULT_TOOLBAR_STYLE,
                                                    G_PARAM_READWRITE));

  gtk_settings_install_property (g_param_spec_enum ("gtk-toolbar-icon-size",
                                                    _("Toolbar icon size"),
                                                    _("Size of icons in default toolbars"),
                                                    GTK_TYPE_ICON_SIZE,
                                                    DEFAULT_ICON_SIZE,
                                                    G_PARAM_READWRITE));  
}

static void
egg_toolbar_init (EggToolbar *toolbar)
{
  EggToolbarPrivate *priv;
  
  GTK_WIDGET_UNSET_FLAGS (toolbar, GTK_CAN_FOCUS);

  priv = g_new0 (EggToolbarPrivate, 1);
  g_object_set_data (G_OBJECT (toolbar), PRIVATE_KEY, priv);
  
  toolbar->orientation = GTK_ORIENTATION_HORIZONTAL;
  toolbar->style = GTK_TOOLBAR_ICONS;
  toolbar->tooltips = gtk_tooltips_new ();
  g_object_ref (toolbar->tooltips);
  gtk_object_sink (GTK_OBJECT (toolbar->tooltips));
  
  priv->button = gtk_toggle_button_new ();
  g_signal_connect (priv->button, "button_press_event",
            G_CALLBACK (egg_toolbar_arrow_button_press), toolbar);
  gtk_button_set_relief (GTK_BUTTON (priv->button),
             get_button_relief (toolbar));
  GTK_WIDGET_UNSET_FLAGS (priv->button, GTK_CAN_FOCUS);
  
  priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
  gtk_widget_show (priv->arrow);
  gtk_container_add (GTK_CONTAINER (priv->button), priv->arrow);
  
  gtk_widget_set_parent (priv->button, GTK_WIDGET (toolbar));  

  g_signal_connect (GTK_WIDGET (toolbar), "button_press_event",
                G_CALLBACK (egg_toolbar_button_press), toolbar);
}

static void
egg_toolbar_set_property (GObject     *object,
              guint        prop_id,
              const GValue *value,
              GParamSpec   *pspec)
{
  EggToolbar *toolbar = EGG_TOOLBAR (object);

  switch (prop_id)
    {
    case PROP_ORIENTATION:
      egg_toolbar_set_orientation (toolbar, g_value_get_enum (value));
      break;
    case PROP_TOOLBAR_STYLE:
      egg_toolbar_set_style (toolbar, g_value_get_enum (value));
      break;
    case PROP_SHOW_ARROW:
      egg_toolbar_set_show_arrow (toolbar, g_value_get_boolean (value));
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }
}

static void
egg_toolbar_get_property (GObject    *object,
              guint       prop_id,
              GValue     *value,
              GParamSpec *pspec)
{
  EggToolbar *toolbar = EGG_TOOLBAR (object);
  EggToolbarPrivate *priv = EGG_TOOLBAR_GET_PRIVATE (toolbar);
  
  switch (prop_id)
    {
    case PROP_ORIENTATION:
      g_value_set_enum (value, toolbar->orientation);
      break;
    case PROP_TOOLBAR_STYLE:
      g_value_set_enum (value, toolbar->style);
      break;
    case PROP_SHOW_ARROW:
      g_value_set_boolean (value, priv->show_arrow);
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }
}

static void
egg_toolbar_paint_space_line (GtkWidget    *widget,
                  GdkRectangle *area,
                  EggToolItem  *item)
{
  EggToolbar *toolbar;
  GtkAllocation *allocation;
  gint space_size;
  
  g_return_if_fail (GTK_BIN (item)->child == NULL);

  toolbar = EGG_TOOLBAR (widget);

  allocation = &GTK_WIDGET (item)->allocation;
  space_size = get_space_size (toolbar);
  
  if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
    gtk_paint_vline (widget->style, widget->window,
             GTK_WIDGET_STATE (widget), area, widget,
             "toolbar",
             allocation->y +  allocation->height *
             SPACE_LINE_START / SPACE_LINE_DIVISION,
             allocation->y + allocation->height *
             SPACE_LINE_END / SPACE_LINE_DIVISION,
             allocation->x + (space_size-widget->style->xthickness)/2);
  else if (toolbar->orientation == GTK_ORIENTATION_VERTICAL)
    gtk_paint_hline (widget->style, widget->window,
             GTK_WIDGET_STATE (widget), area, widget,
             "toolbar",
             allocation->x + allocation->width *
             SPACE_LINE_START / SPACE_LINE_DIVISION,
             allocation->x + allocation->width *
             SPACE_LINE_END / SPACE_LINE_DIVISION,
             allocation->y + (space_size-widget->style->ythickness)/2);
}

static void
egg_toolbar_realize (GtkWidget *widget)
{
  EggToolbar *toolbar = EGG_TOOLBAR (widget);
  GdkWindowAttr attributes;
  gint attributes_mask;
  gint border_width;

  GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);

  border_width = GTK_CONTAINER (widget)->border_width;

  attributes.wclass = GDK_INPUT_OUTPUT;
  attributes.visual = gtk_widget_get_visual (widget);
  attributes.colormap = gtk_widget_get_colormap (widget);
  attributes.window_type = GDK_WINDOW_CHILD;
  attributes.x = widget->allocation.x + border_width;
  attributes.y = widget->allocation.y + border_width;
  attributes.width = widget->allocation.width - border_width * 2;
  attributes.height = widget->allocation.height - border_width * 2;
  attributes.event_mask = gtk_widget_get_events (widget);
  attributes.event_mask |= (GDK_VISIBILITY_NOTIFY_MASK |
                    GDK_EXPOSURE_MASK |
                GDK_BUTTON_PRESS_MASK |
                GDK_BUTTON_RELEASE_MASK |
                GDK_ENTER_NOTIFY_MASK |
                GDK_LEAVE_NOTIFY_MASK);

  attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;

  widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
                       &attributes, attributes_mask);
  gdk_window_set_user_data (widget->window, toolbar);
  gdk_window_set_background (widget->window, &widget->style->bg[GTK_WIDGET_STATE (widget)]);

  widget->style = gtk_style_attach (widget->style, widget->window);
}

static gint
egg_toolbar_expose (GtkWidget      *widget,
            GdkEventExpose *event)
{
  EggToolbar *toolbar = EGG_TOOLBAR (widget);
  EggToolbarPrivate *priv = EGG_TOOLBAR_GET_PRIVATE (toolbar);
  
  GList *items;
  gint border_width;
  
  border_width = GTK_CONTAINER (widget)->border_width;
  
  if (GTK_WIDGET_DRAWABLE (widget))
    {
      GtkShadowType shadow_type;

      gtk_widget_style_get (widget, "shadow_type", &shadow_type, NULL);

      gtk_paint_box (widget->style,
             widget->window,
                     GTK_WIDGET_STATE (widget),
                     shadow_type,
             &event->area, widget, "toolbar",
             widget->allocation.x + border_width,
                     border_width,
             widget->allocation.width - border_width,
                     widget->allocation.height - border_width);
    }

  items = priv->items;
  while (items)
    {
      EggToolItem *item = EGG_TOOL_ITEM (items->data);

      if (GTK_BIN (item)->child)
    gtk_container_propagate_expose (GTK_CONTAINER (widget),
                    GTK_WIDGET (item),
                    event);
      else if (GTK_WIDGET_MAPPED (item) && get_space_style (toolbar) == GTK_TOOLBAR_SPACE_LINE)
    egg_toolbar_paint_space_line (widget, &event->area, item);
      
      items = items->next;
    }

  gtk_container_propagate_expose (GTK_CONTAINER (widget),
                  priv->button,
                  event);
  
  return FALSE;
}

static void
egg_toolbar_size_request (GtkWidget      *widget,
              GtkRequisition *requisition)
{
  EggToolbar *toolbar = EGG_TOOLBAR (widget);
  EggToolbarPrivate *priv = EGG_TOOLBAR_GET_PRIVATE (toolbar);
  GList *items;
  gint nbuttons, ipadding;
  gint button_maxw, button_maxh;
  gint total_button_maxw, total_button_maxh;
  gint space_size;
  GtkRequisition child_requisition;

  requisition->width = GTK_CONTAINER (toolbar)->border_width * 2;
  requisition->height = GTK_CONTAINER (toolbar)->border_width * 2;
  nbuttons = 0;
  button_maxw = 0;
  button_maxh = 0;
  total_button_maxw = 0;
  total_button_maxh = 0;
  items = priv->items;
  space_size = get_space_size (toolbar);
  
  if (priv->show_arrow)
    {
      /* When we enable the arrow we only want to be the
       * size of the arrows plus the size of any items that
       * are pack-end.
       */

      items = priv->items;

      while (items)
    {
      EggToolItem *item = EGG_TOOL_ITEM (items->data);
      
      if (TOOLBAR_ITEM_VISIBLE (item))
        {
          gtk_widget_size_request (GTK_WIDGET (item), &child_requisition);

          total_button_maxw = MAX (total_button_maxw, child_requisition.width);
          total_button_maxh = MAX (total_button_maxh, child_requisition.height);

          if (item->homogeneous)
        {
          if (item->pack_end)
            nbuttons++;
          button_maxw = MAX (button_maxw, child_requisition.width);
          button_maxh = MAX (button_maxh, child_requisition.height);
        }
          else if (item->pack_end)
        {
          if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
            requisition->width += child_requisition.width;
          else
            requisition->height += child_requisition.height;
        }
          if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
        requisition->height = MAX (requisition->height, child_requisition.height);
          else
        requisition->width = MAX (requisition->width, child_requisition.width);
        }

      items = items->next;
    }

      /* Add the arrow */
      gtk_widget_size_request (priv->button, &child_requisition);
      
      if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
    {
      requisition->width += child_requisition.width;
      requisition->height = MAX (requisition->height, child_requisition.height);      
    }
      else
    {
      requisition->height += child_requisition.height;
      requisition->width = MAX (requisition->width, child_requisition.width);
    }
    }
  else
    {
      items = priv->items;

      while (items)
    {
      EggToolItem *item = EGG_TOOL_ITEM (items->data);
      
      if (!TOOLBAR_ITEM_VISIBLE (item))
        {
          items = items->next;
          continue;
        }
      
      if (!GTK_BIN (item)->child)
        {
          if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
        requisition->width += space_size;
          else
        requisition->height += space_size;
        }
      else
        {
          gtk_widget_size_request (GTK_WIDGET (item), &child_requisition);
          
          total_button_maxw = MAX (total_button_maxw, child_requisition.width);
          total_button_maxh = MAX (total_button_maxh, child_requisition.height);
          
          if (item->homogeneous)
        {
          nbuttons++;
          button_maxw = MAX (button_maxw, child_requisition.width);
          button_maxh = MAX (button_maxh, child_requisition.height);
        }
          else
        {
          if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
            {
              requisition->width += child_requisition.width;
              requisition->height = MAX (requisition->height, child_requisition.height);
            }
          else
            {
              requisition->height += child_requisition.height;
              requisition->width = MAX (requisition->width, child_requisition.width);
            }
        }
        }

      items = items->next;
    }
    }
  
  if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
    {
      requisition->width += nbuttons * button_maxw;
      requisition->height = MAX (requisition->height, button_maxh);
    }
  else
    {
      requisition->width = MAX (requisition->width, button_maxw);
      requisition->height += nbuttons * button_maxh;
    }

  /* Extra spacing */
  gtk_widget_style_get (widget, "internal_padding", &ipadding, NULL);
  
  requisition->width += 2 * ipadding;
  requisition->height += 2 * ipadding;

  priv->total_button_maxw = total_button_maxw;
  priv->total_button_maxh = total_button_maxh;
  
  toolbar->button_maxw = button_maxw;
  toolbar->button_maxh = button_maxh;
}

static void
egg_toolbar_size_allocate (GtkWidget     *widget,
               GtkAllocation *allocation)
{
  EggToolbar *toolbar = EGG_TOOLBAR (widget);
  EggToolbarPrivate *priv = EGG_TOOLBAR_GET_PRIVATE (toolbar);
  GList *items;
  GtkAllocation child_allocation;
  gint ipadding, space_size;
  gint border_width, edge_position;
  gint available_width, available_height;
  gint available_size, total_size;
  GtkRequisition child_requisition;
  gint remaining_size;
  gint number_expandable, expandable_size;
  gboolean first_expandable;
  gint child_x; 

  widget->allocation = *allocation;
  border_width = GTK_CONTAINER (widget)->border_width;
  total_size = 0;
  number_expandable = 0;
  space_size = get_space_size (toolbar);

  available_width  = allocation->width  - 2 * border_width;
  available_height = allocation->height - 2 * border_width;
  if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
    {
      edge_position = allocation->x + allocation->width - border_width;
      available_size = available_width;
    }
  else
    {
      edge_position = allocation->height - border_width;
      available_size = available_height;
    }

  if (GTK_WIDGET_REALIZED (widget))
    {
      gdk_window_move_resize (widget->window,
                  allocation->x + border_width,
                  allocation->y + border_width,
                  allocation->width - border_width * 2,
                  allocation->height - border_width * 2);
    }

  
  items = g_list_last (priv->items);
  
  while (items)
    {
      EggToolItem *item = EGG_TOOL_ITEM (items->data);
      
      if (!item->pack_end || !TOOLBAR_ITEM_VISIBLE (item))
    {
      items = items->prev;
      continue;
    }

      if (!GTK_BIN (item)->child)
    {
      if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
        {
          child_allocation.width = space_size;
          child_allocation.height = available_height;
          if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR) 
        child_allocation.x = edge_position - child_allocation.width;
          else
        child_allocation.x = allocation->x + allocation->width - edge_position;
          
          child_allocation.y = (allocation->height - child_allocation.height) / 2;


          gtk_widget_size_allocate (GTK_WIDGET (item), &child_allocation);

          edge_position -= child_allocation.width;
          available_size -= child_allocation.width; 
        }
      else
        {
          child_allocation.width = available_width;
          child_allocation.height = space_size;
          child_allocation.x = allocation->x + (allocation->width - child_allocation.width) / 2;
          child_allocation.y = edge_position - child_allocation.height;

          gtk_widget_size_allocate (GTK_WIDGET (item), &child_allocation);

          edge_position -= child_allocation.height;
          available_size -= child_allocation.height; 
        }
    }
      else
    {
      gtk_widget_get_child_requisition (GTK_WIDGET (item), &child_requisition);
      
      if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
        {
          if (item->homogeneous)
        child_allocation.width = toolbar->button_maxw;
          else
        child_allocation.width = child_requisition.width;
          child_allocation.height = available_height;
          child_allocation.y = (allocation->height - child_allocation.height) / 2;
          if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR) 
        child_allocation.x = edge_position - child_allocation.width;
          else
        child_allocation.x = allocation->x + allocation->width - edge_position;
          
          gtk_widget_size_allocate (GTK_WIDGET (item), &child_allocation);
          
          edge_position -= child_allocation.width;
          available_size -= child_allocation.width; 
        }
      else
        {
          if (item->homogeneous)
        child_allocation.height = toolbar->button_maxh;
          else
        child_allocation.height = child_requisition.height;

          child_allocation.width = available_width;
          child_allocation.x = allocation->x + (allocation->width - child_allocation.width) / 2;
          child_allocation.y = edge_position - child_allocation.height;
          
          gtk_widget_size_allocate (GTK_WIDGET (item), &child_allocation);
          
          edge_position -= child_allocation.height;
          available_size -= child_allocation.height;
        }
    }

      items = items->prev;
    }

  /* Now go through the items and see if they fit */
  items = priv->items;

  while (items)
    {
      EggToolItem *item = EGG_TOOL_ITEM (items->data);

      if (item->pack_end || !TOOLBAR_ITEM_VISIBLE (item))
    {
      items = items->next;
      continue;
    }

      if (item->expandable)
    number_expandable += 1;

      if (!GTK_BIN (item)->child)
    {
      total_size += space_size;
    }
      else
    {
      if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
        {
          gtk_widget_get_child_requisition (GTK_WIDGET (item), &child_requisition);
          
          if (item->homogeneous)
        total_size += toolbar->button_maxw;
          else
        total_size += child_requisition.width;
        }
      else
        {
          gtk_widget_get_child_requisition (GTK_WIDGET (item), &child_requisition);
          
          if (item->homogeneous)
        total_size += toolbar->button_maxh;
          else
        total_size += child_requisition.height;
        }
    }
      items = items->next;
    }

  /* Check if we need to allocate and show the arrow */
  if (available_size < total_size)
    {
      if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
    {
      gtk_widget_get_child_requisition (priv->button, &child_requisition);
      available_size -= child_requisition.width;

      child_allocation.width = child_requisition.width;
      child_allocation.height = priv->total_button_maxh;
      child_allocation.y = (allocation->height - child_allocation.height) / 2;
      if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR) 
        child_allocation.x = edge_position - child_allocation.width;
      else
        child_allocation.x = allocation->x + allocation->width - edge_position;
    }
      else
    {
      gtk_widget_get_child_requisition (priv->button, &child_requisition);    
      available_size -= child_requisition.width;

      child_allocation.height = child_requisition.height;
      child_allocation.width = priv->total_button_maxw;
      child_allocation.x = allocation->x + (allocation->width - child_allocation.width) / 2;
      child_allocation.y = edge_position - child_allocation.height;
    }

      gtk_widget_size_allocate (priv->button, &child_allocation);      
      gtk_widget_show (priv->button);
    }
  else
    gtk_widget_hide (priv->button);
  
  /* Finally allocate the remaining items */
  items = priv->items;
  child_x = allocation->x + border_width;
  child_allocation.y = border_width;
  remaining_size = MAX (0, available_size - total_size);
  total_size = 0;
  first_expandable = TRUE;
  
  while (items)
    {
      EggToolItem *item = EGG_TOOL_ITEM (items->data);

      if (item->pack_end || !TOOLBAR_ITEM_VISIBLE (item))
    {
      items = items->next;
      continue;
    }
      
      if (!GTK_BIN (item)->child)
    {
      if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
        {
          child_allocation.width = space_size;
          child_allocation.height = available_height;
          child_allocation.y = (allocation->height - child_allocation.height) / 2;
          total_size += child_allocation.width;

          if (total_size > available_size)
        break;
          
          if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR) 
        child_allocation.x = child_x;
          else
        child_allocation.x = allocation->x + allocation->width 
          - child_x - child_allocation.width;

          gtk_widget_size_allocate (GTK_WIDGET (item), &child_allocation);
          gtk_widget_map (GTK_WIDGET (item));
          
          child_x += child_allocation.width;
        }
      else
        {
          child_allocation.width = available_width;
          child_allocation.height = space_size;
          child_allocation.x = allocation->x + (allocation->width - child_allocation.width) / 2;
          total_size += child_allocation.height;

          if (total_size > available_size)
        break;
          
          gtk_widget_size_allocate (GTK_WIDGET (item), &child_allocation);
          gtk_widget_map (GTK_WIDGET (item));
      
          child_allocation.y += child_allocation.height;
        }
    }
      else
    {
      gtk_widget_get_child_requisition (GTK_WIDGET (item), &child_requisition);
      
      if (item->expandable)
        {
          expandable_size = remaining_size / number_expandable;
          
          if (first_expandable)
        {
          expandable_size += remaining_size % number_expandable;
          first_expandable = FALSE;
        }
        }
      else
        expandable_size = 0;
      
      if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
        {
          if (item->homogeneous)
        child_allocation.width = toolbar->button_maxw;
          else
        child_allocation.width = child_requisition.width;
          
          child_allocation.height = available_height;
          child_allocation.width += expandable_size;
          child_allocation.y = (allocation->height - child_allocation.height) / 2;
          total_size += child_allocation.width;

          if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
        child_allocation.x = child_x;
          else
        child_allocation.x = allocation->x + allocation->width 
          - child_x - child_allocation.width;

        }
      else
        {
          if (item->homogeneous)
        child_allocation.height = toolbar->button_maxh;
          else
        child_allocation.height = child_requisition.height;
          
          child_allocation.width = available_width;
          child_allocation.height += expandable_size;
          child_allocation.x = allocation->x + (allocation->width - child_allocation.width) / 2;
          total_size += child_allocation.height;

        }
      
      if (total_size > available_size)
        break;
      
      gtk_widget_size_allocate (GTK_WIDGET (item), &child_allocation);
      gtk_widget_map (GTK_WIDGET (item));
      
      if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
        child_x += child_allocation.width;
      else
        child_allocation.y += child_allocation.height;
      
    }
      
      items = items->next;
    }
  
  /* Unmap the remaining items */
  priv->first_non_fitting_item = items;
  while (items)
    {
      EggToolItem *item = EGG_TOOL_ITEM (items->data);

      gtk_widget_unmap (GTK_WIDGET (item));
      items = items->next;      
    }
}

static void
egg_toolbar_style_set (GtkWidget *widget,
               GtkStyle  *prev_style)
{
  if (GTK_WIDGET_REALIZED (widget))
      gtk_style_set_background (widget->style, widget->window, widget->state);

  if (prev_style)
    egg_toolbar_update_button_relief (EGG_TOOLBAR (widget));
}

static void 
egg_toolbar_direction_changed (GtkWidget        *widget,
                   GtkTextDirection  previous_dir)
{
  EggToolbar *toolbar = EGG_TOOLBAR (widget);
  EggToolbarPrivate *priv = EGG_TOOLBAR_GET_PRIVATE (toolbar);
  
  if (toolbar->orientation == GTK_ORIENTATION_VERTICAL)
    {
      if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
    gtk_arrow_set (GTK_ARROW (priv->arrow), GTK_ARROW_RIGHT, GTK_SHADOW_NONE);
      else 
    gtk_arrow_set (GTK_ARROW (priv->arrow), GTK_ARROW_LEFT, GTK_SHADOW_NONE);
    }

  GTK_WIDGET_CLASS (parent_class)->direction_changed (widget, previous_dir);
}

static gboolean
egg_toolbar_focus (GtkWidget        *widget,
           GtkDirectionType  dir)
{
  /* Focus can't go in toolbars */
  
  return FALSE;
}

static void
style_change_notify (EggToolbar *toolbar)
{
  if (!toolbar->style_set)
    {
      /* pretend it was set, then unset, thus reverting to new default */
      toolbar->style_set = TRUE; 
      egg_toolbar_unset_style (toolbar);
    }
}

static void
icon_size_change_notify (EggToolbar *toolbar)
{
  if (!toolbar->icon_size_set)
    {
      /* pretend it was set, then unset, thus reverting to new default */
      toolbar->icon_size_set = TRUE; 
      egg_toolbar_unset_icon_size (toolbar);
    }
}

static GtkSettings *
toolbar_get_settings (EggToolbar *toolbar)
{
  return g_object_get_data (G_OBJECT (toolbar), "egg-toolbar-settings");
}

static void
egg_toolbar_screen_changed (GtkWidget *widget,
                GdkScreen *previous_screen)
{
  EggToolbar *toolbar = EGG_TOOLBAR (widget);
  GtkSettings *old_settings = toolbar_get_settings (toolbar);
  GtkSettings *settings;

  if (gtk_widget_has_screen (GTK_WIDGET (toolbar)))
    settings = gtk_widget_get_settings (GTK_WIDGET (toolbar));
  else
    settings = NULL;

  if (settings == old_settings)
    return;

  if (old_settings)
    {
      g_signal_handler_disconnect (old_settings, toolbar->style_set_connection);
      g_signal_handler_disconnect (old_settings, toolbar->icon_size_connection);

      g_object_unref (old_settings);
    }

  if (settings)
    {
      toolbar->style_set_connection =
    g_signal_connect_swapped (settings,
                  "notify::gtk-toolbar-style",
                  G_CALLBACK (style_change_notify),
                  toolbar);
      toolbar->icon_size_connection =
    g_signal_connect_swapped (settings,
                  "notify::gtk-toolbar-icon-size",
                  G_CALLBACK (icon_size_change_notify),
                  toolbar);

      g_object_ref (settings);
      g_object_set_data (G_OBJECT (toolbar), "egg-toolbar-settings", settings);
    }
  else
    g_object_set_data (G_OBJECT (toolbar), "egg-toolbar-settings", NULL);

  style_change_notify (toolbar);
  icon_size_change_notify (toolbar);
}


static void
egg_toolbar_add (GtkContainer *container,
         GtkWidget *widget)
{
  g_return_if_fail (EGG_IS_TOOLBAR (container));
  g_return_if_fail (EGG_IS_TOOL_ITEM (widget));

  egg_toolbar_append_tool_item (EGG_TOOLBAR (container),
                EGG_TOOL_ITEM (widget));
}

static void
egg_toolbar_remove (GtkContainer *container,
            GtkWidget    *widget)
{
  g_return_if_fail (EGG_IS_TOOLBAR (container));
  g_return_if_fail (EGG_IS_TOOL_ITEM (widget));
  
  egg_toolbar_remove_tool_item (EGG_TOOLBAR (container),
                EGG_TOOL_ITEM (widget));
}

static void
egg_toolbar_forall (GtkContainer *container,
            gboolean      include_internals,
            GtkCallback   callback,
            gpointer      callback_data)
{
  EggToolbar *toolbar = EGG_TOOLBAR (container);
  EggToolbarPrivate *priv = EGG_TOOLBAR_GET_PRIVATE (toolbar);
  GList *items;

  g_return_if_fail (callback != NULL);

  items = priv->items;

  while (items)
    {
      EggToolItem *item = EGG_TOOL_ITEM (items->data);
      
      items = items->next;
      (*callback) (GTK_WIDGET (item), callback_data);
    }

  if (include_internals)
    (* callback) (priv->button, callback_data);
}

static GType
egg_toolbar_child_type (GtkContainer *container)
{
  return EGG_TYPE_TOOL_ITEM;
}

static void
egg_toolbar_real_orientation_changed (EggToolbar    *toolbar,
                      GtkOrientation orientation)
{
  EggToolbarPrivate *priv = EGG_TOOLBAR_GET_PRIVATE (toolbar);
  
  GList *items;
  
  if (toolbar->orientation != orientation)
    {
      toolbar->orientation = orientation;

      items = priv->items;
      while (items)
    {
      EggToolItem *item = EGG_TOOL_ITEM (items->data);

      egg_tool_item_set_orientation (item, orientation);

      items = items->next;
    }

      if (orientation == GTK_ORIENTATION_HORIZONTAL)
    gtk_arrow_set (GTK_ARROW (priv->arrow), GTK_ARROW_DOWN, GTK_SHADOW_NONE);
      else if (gtk_widget_get_direction (GTK_WIDGET (toolbar)) == GTK_TEXT_DIR_LTR)
    gtk_arrow_set (GTK_ARROW (priv->arrow), GTK_ARROW_RIGHT, GTK_SHADOW_NONE);
      else 
    gtk_arrow_set (GTK_ARROW (priv->arrow), GTK_ARROW_LEFT, GTK_SHADOW_NONE);
      
      gtk_widget_queue_resize (GTK_WIDGET (toolbar));
      g_object_notify (G_OBJECT (toolbar), "orientation");
    }
}

static void
egg_toolbar_real_style_changed (EggToolbar     *toolbar,
                GtkToolbarStyle style)
{
  EggToolbarPrivate *priv;
  GList *items;

  priv = EGG_TOOLBAR_GET_PRIVATE (toolbar);
  
  if (toolbar->style != style)
    {
      toolbar->style = style;

      items = priv->items;
      
      while (items)
    {
      EggToolItem *item = EGG_TOOL_ITEM (items->data);
      
      egg_tool_item_set_toolbar_style (item, style);
      
      items = items->next;
    }
      
      gtk_widget_queue_resize (GTK_WIDGET (toolbar));
      g_object_notify (G_OBJECT (toolbar), "toolbar_style");
    }
}

static void
menu_position_func (GtkMenu  *menu,
            gint     *x,
            gint     *y,
            gboolean *push_in,
            gpointer  user_data)
{
  EggToolbar *toolbar = EGG_TOOLBAR (user_data);
  EggToolbarPrivate *priv = EGG_TOOLBAR_GET_PRIVATE (toolbar);
  GtkRequisition req;
  GtkRequisition menu_req;
  
  gdk_window_get_origin (GTK_BUTTON (priv->button)->event_window, x, y);
  gtk_widget_size_request (priv->button, &req);
  gtk_widget_size_request (GTK_WIDGET (menu), &menu_req);
  
  if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
    {
      *y += priv->button->allocation.height;
      if (gtk_widget_get_direction (GTK_WIDGET (toolbar)) == GTK_TEXT_DIR_LTR) 
    *x += priv->button->allocation.width - req.width;
      else 
    *x += req.width - menu_req.width;
    }
  else 
    {
      if (gtk_widget_get_direction (GTK_WIDGET (toolbar)) == GTK_TEXT_DIR_LTR) 
    *x += priv->button->allocation.width;
      else 
    *x -= menu_req.width;
      *y += priv->button->allocation.height - req.height;      
    }
  
  *push_in = TRUE;
}

static void
menu_deactivated (GtkWidget *menu, GtkWidget *button)
{
  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), FALSE);
}

static void
egg_toolbar_arrow_button_press (GtkWidget      *button,
                    GdkEventButton *event,
                EggToolbar     *toolbar)
{
  EggToolbarPrivate *priv = EGG_TOOLBAR_GET_PRIVATE (toolbar);  
  GtkWidget *menu;
  GtkWidget *menu_item;
  GList *items;
  
  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
  
  menu = gtk_menu_new ();
  g_signal_connect (menu, "deactivate", G_CALLBACK (menu_deactivated), button);

  items = priv->first_non_fitting_item;
  while (items)
    {
      EggToolItem *item = EGG_TOOL_ITEM (items->data);

      if (TOOLBAR_ITEM_VISIBLE (item) && !item->pack_end)
    {
      menu_item = NULL;
      g_signal_emit_by_name (item, "create_menu_proxy", &menu_item);
      
      if (menu_item)
        {
          gtk_menu_shell_append (GTK_MENU_SHELL (menu), menu_item);
        }
    }
      items = items->next;
    }

  gtk_widget_show_all (menu);

  gtk_menu_popup (GTK_MENU (menu), NULL, NULL,
          menu_position_func, toolbar,
          event->button, event->time);
}

static gboolean
egg_toolbar_button_press (GtkWidget      *button,
                  GdkEventButton *event,
              EggToolbar     *toolbar)
{
  if (event->button == 3)
    {
      g_signal_emit (toolbar, toolbar_signals[POPUP_CONTEXT_MENU], 0, NULL);
      return FALSE;
    }

  return FALSE;
}

static void
egg_toolbar_update_button_relief (EggToolbar *toolbar)
{
  EggToolbarPrivate *priv = EGG_TOOLBAR_GET_PRIVATE (toolbar);
  GtkReliefStyle relief;
  GList *items;
  
  relief = get_button_relief (toolbar);

  items = priv->items;
  while (items)
    {
      EggToolItem *item = EGG_TOOL_ITEM (items->data);

      egg_tool_item_set_relief_style (item, relief);
      
      items = items->next;
    }

  gtk_button_set_relief (GTK_BUTTON (priv->button), relief);
}

static GtkReliefStyle
get_button_relief (EggToolbar *toolbar)
{
  GtkReliefStyle button_relief = GTK_RELIEF_NORMAL;

  gtk_widget_ensure_style (GTK_WIDGET (toolbar));
  
  gtk_widget_style_get (GTK_WIDGET (toolbar),
                        "button_relief", &button_relief,
                        NULL);

  return button_relief;
}

static gint
get_space_size (EggToolbar *toolbar)
{
  gint space_size = DEFAULT_SPACE_SIZE;

  gtk_widget_style_get (GTK_WIDGET (toolbar),
                        "space_size", &space_size,
                        NULL);

  return space_size;
}

static GtkToolbarSpaceStyle
get_space_style (EggToolbar *toolbar)
{
  GtkToolbarSpaceStyle space_style = DEFAULT_SPACE_STYLE;

  gtk_widget_style_get (GTK_WIDGET (toolbar),
                        "space_style", &space_style,
                        NULL);


  return space_style;  
}

GtkWidget *
egg_toolbar_new (void)
{
  EggToolbar *toolbar;

  toolbar = g_object_new (EGG_TYPE_TOOLBAR, NULL);

  return GTK_WIDGET (toolbar);
}

void
egg_toolbar_append_tool_item (EggToolbar  *toolbar,
                  EggToolItem *item)
{
  g_return_if_fail (EGG_IS_TOOLBAR (toolbar));
  g_return_if_fail (EGG_IS_TOOL_ITEM (item));

  egg_toolbar_insert_tool_item (toolbar, item, toolbar->num_children);
}

void
egg_toolbar_prepend_tool_item (EggToolbar  *toolbar,
                   EggToolItem *item)
{
  g_return_if_fail (EGG_IS_TOOLBAR (toolbar));
  g_return_if_fail (EGG_IS_TOOL_ITEM (item));

  egg_toolbar_insert_tool_item (toolbar, item, 0);
}

void
egg_toolbar_remove_tool_item (EggToolbar  *toolbar,
                  EggToolItem *item)
{
  EggToolbarPrivate *priv;
  GList *tmp;

  g_return_if_fail (EGG_IS_TOOLBAR (toolbar));
  g_return_if_fail (EGG_IS_TOOL_ITEM (item));
  
  priv = EGG_TOOLBAR_GET_PRIVATE (toolbar);
  
  for (tmp = priv->items; tmp != NULL; tmp = tmp->next)
    {
      GtkWidget *child = tmp->data;
      
      if (child == GTK_WIDGET (item))
    {
      gboolean was_visible;
      
      was_visible = GTK_WIDGET_VISIBLE (item);
      gtk_widget_unparent (GTK_WIDGET (item));

      priv->items = g_list_remove_link (priv->items, tmp);
      toolbar->num_children--;

      if (was_visible && GTK_WIDGET_VISIBLE (toolbar))
        gtk_widget_queue_resize (GTK_WIDGET (toolbar));

      break;
    }
    }
}

void
egg_toolbar_insert_tool_item (EggToolbar  *toolbar,
                  EggToolItem *item,
                  gint pos)
{
  EggToolbarPrivate *priv;
  
  g_return_if_fail (EGG_IS_TOOLBAR (toolbar));
  g_return_if_fail (EGG_IS_TOOL_ITEM (item));

  priv = EGG_TOOLBAR_GET_PRIVATE (toolbar);
  
  priv->items = g_list_insert (priv->items, item, pos);
  toolbar->num_children++;

  egg_tool_item_set_orientation (item, toolbar->orientation);
  egg_tool_item_set_toolbar_style (item, toolbar->style);
  egg_tool_item_set_relief_style (item, get_button_relief (toolbar));
  
  gtk_widget_set_parent (GTK_WIDGET (item), GTK_WIDGET (toolbar));
  GTK_WIDGET_UNSET_FLAGS (item, GTK_CAN_FOCUS);  
}

void
egg_toolbar_set_orientation (EggToolbar     *toolbar,
                 GtkOrientation  orientation)
{
  g_return_if_fail (EGG_IS_TOOLBAR (toolbar));

  g_signal_emit (toolbar, toolbar_signals[ORIENTATION_CHANGED], 0, orientation);
}

GtkOrientation
egg_toolbar_get_orientation (EggToolbar *toolbar)
{
  g_return_val_if_fail (EGG_IS_TOOLBAR (toolbar), GTK_ORIENTATION_HORIZONTAL);

  return toolbar->orientation;
}

void
egg_toolbar_set_style (EggToolbar      *toolbar,
               GtkToolbarStyle  style)
{
  g_return_if_fail (EGG_IS_TOOLBAR (toolbar));

  toolbar->style_set = TRUE;  
  g_signal_emit (toolbar, toolbar_signals[STYLE_CHANGED], 0, style);
}

GtkToolbarStyle
egg_toolbar_get_style (EggToolbar *toolbar)
{
  g_return_val_if_fail (EGG_IS_TOOLBAR (toolbar), DEFAULT_TOOLBAR_STYLE);

  return toolbar->style;
}

void
egg_toolbar_unset_style (EggToolbar *toolbar)
{
  GtkToolbarStyle style;

  g_return_if_fail (EGG_IS_TOOLBAR (toolbar));

  if (toolbar->style_set)
    {
      GtkSettings *settings = toolbar_get_settings (toolbar);

      if (settings)
    g_object_get (settings,
              "gtk-toolbar-style", &style,
              NULL);
      else
    style = DEFAULT_TOOLBAR_STYLE;

      if (style != toolbar->style)
    g_signal_emit (toolbar, toolbar_signals[STYLE_CHANGED], 0, style);

      toolbar->style_set = FALSE;
    }
}

void
egg_toolbar_set_tooltips (EggToolbar *toolbar,
              gboolean    enable)
{
  g_return_if_fail (EGG_IS_TOOLBAR (toolbar));

  if (enable)
    gtk_tooltips_enable (toolbar->tooltips);
  else
    gtk_tooltips_disable (toolbar->tooltips);
}

gboolean
egg_toolbar_get_tooltips (EggToolbar *toolbar)
{
  g_return_val_if_fail (EGG_IS_TOOLBAR (toolbar), FALSE);

  return toolbar->tooltips->enabled;
}

GList*
egg_toolbar_get_tool_items (EggToolbar *toolbar)
{
  EggToolbarPrivate *priv = EGG_TOOLBAR_GET_PRIVATE (toolbar);

  g_return_val_if_fail (EGG_IS_TOOLBAR (toolbar), NULL);

  return priv->items;
}

void
egg_toolbar_set_icon_size (EggToolbar  *toolbar,
               GtkIconSize  icon_size)
{
  GList *items;
  EggToolbarPrivate *priv = EGG_TOOLBAR_GET_PRIVATE (toolbar);
  
  g_return_if_fail (EGG_IS_TOOLBAR (toolbar));

  toolbar->icon_size_set = TRUE;

  if (toolbar->icon_size == icon_size)
    return;

  toolbar->icon_size = icon_size;

  items = priv->items;

  while (items)
    {
      EggToolItem *item = EGG_TOOL_ITEM (items->data);
      
      egg_tool_item_set_icon_size (item, icon_size);
      
      items = items->next;
    }

  gtk_widget_queue_resize (GTK_WIDGET (toolbar));
}

GtkIconSize
egg_toolbar_get_icon_size (EggToolbar *toolbar)
{
  g_return_val_if_fail (EGG_IS_TOOLBAR (toolbar), DEFAULT_ICON_SIZE);

  return toolbar->icon_size;
}

void
egg_toolbar_unset_icon_size (EggToolbar *toolbar)
{
  GtkIconSize size;

  if (toolbar->icon_size_set)
    {
      GtkSettings *settings = toolbar_get_settings (toolbar);

      if (settings)
    g_object_get (settings,
              "gtk-toolbar-icon-size", &size,
              NULL);
      else
    size = DEFAULT_ICON_SIZE;

      if (size != toolbar->icon_size)
    egg_toolbar_set_icon_size (toolbar, size);

      toolbar->icon_size_set = FALSE;
    }
}


void
egg_toolbar_set_show_arrow (EggToolbar *toolbar,
                gboolean    show_arrow)
{
  EggToolbarPrivate *priv;
  
  g_return_if_fail (EGG_IS_TOOLBAR (toolbar));

  priv = EGG_TOOLBAR_GET_PRIVATE (toolbar);
  show_arrow = show_arrow != FALSE;

  if (priv->show_arrow != show_arrow)
    {
      priv->show_arrow = show_arrow;
      
      if (!priv->show_arrow)
    gtk_widget_hide (priv->button);
      
      gtk_widget_queue_resize (GTK_WIDGET (toolbar));      
      g_object_notify (G_OBJECT (toolbar), "show_arrow");
    }
}

gboolean
egg_toolbar_get_show_arrow (EggToolbar *toolbar)
{
  EggToolbarPrivate *priv;

  g_return_val_if_fail (EGG_IS_TOOLBAR (toolbar), FALSE);

  priv = EGG_TOOLBAR_GET_PRIVATE (toolbar);
  
  return priv->show_arrow;
}

GtkWidget *
egg_toolbar_append_item (EggToolbar    *toolbar,
             const char    *text,
             const char    *tooltip_text,
             const char    *tooltip_private_text,
             GtkWidget     *icon,
             GtkSignalFunc  callback,
             gpointer       user_data)
{
  return egg_toolbar_insert_element (toolbar, EGG_TOOLBAR_CHILD_BUTTON,
                     NULL, text,
                     tooltip_text, tooltip_private_text,
                     icon, callback, user_data,
                     toolbar->num_children);
}

GtkWidget *
egg_toolbar_prepend_item (EggToolbar    *toolbar,
              const char    *text,
              const char    *tooltip_text,
              const char    *tooltip_private_text,
              GtkWidget     *icon,
              GtkSignalFunc  callback,
              gpointer       user_data)
{
  return egg_toolbar_insert_element (toolbar, EGG_TOOLBAR_CHILD_BUTTON,
                     NULL, text,
                     tooltip_text, tooltip_private_text,
                     icon, callback, user_data,
                     0);
}

GtkWidget *
egg_toolbar_insert_item (EggToolbar    *toolbar,
             const char    *text,
             const char    *tooltip_text,
             const char    *tooltip_private_text,
             GtkWidget     *icon,
             GtkSignalFunc  callback,
             gpointer       user_data,
             gint           position)
{
  return egg_toolbar_insert_element (toolbar, EGG_TOOLBAR_CHILD_BUTTON,
                     NULL, text,
                     tooltip_text, tooltip_private_text,
                     icon, callback, user_data,
                     position);
}

GtkWidget*
egg_toolbar_insert_stock (EggToolbar      *toolbar,
              const gchar     *stock_id,
              const char      *tooltip_text,
              const char      *tooltip_private_text,
              GtkSignalFunc    callback,
              gpointer         user_data,
              gint             position)
{
  return egg_toolbar_internal_insert_element (toolbar, EGG_TOOLBAR_CHILD_BUTTON,
                          NULL, stock_id,
                          tooltip_text, tooltip_private_text,
                          NULL, callback, user_data,
                          position, TRUE);
}

void
egg_toolbar_append_space (EggToolbar *toolbar)
{
  egg_toolbar_insert_element (toolbar, EGG_TOOLBAR_CHILD_SPACE,
                  NULL, NULL,
                  NULL, NULL,
                  NULL, NULL, NULL,
                  toolbar->num_children);
}

void
egg_toolbar_prepend_space (EggToolbar *toolbar)
{
  egg_toolbar_insert_element (toolbar, EGG_TOOLBAR_CHILD_SPACE,
                  NULL, NULL,
                  NULL, NULL,
                  NULL, NULL, NULL,
                  0);
}

void
egg_toolbar_insert_space (EggToolbar *toolbar,
              gint        position)
{
  egg_toolbar_insert_element (toolbar, EGG_TOOLBAR_CHILD_SPACE,
                  NULL, NULL,
                  NULL, NULL,
                  NULL, NULL, NULL,
                  position);
}

void
egg_toolbar_append_widget (EggToolbar  *toolbar,
               GtkWidget   *widget,
               const gchar *tooltip_text,
               const gchar *tooltip_private_text)
{
  egg_toolbar_insert_element (toolbar, EGG_TOOLBAR_CHILD_WIDGET,
                  widget, NULL,
                  tooltip_text, tooltip_private_text,
                  NULL, NULL, NULL,
                  toolbar->num_children);
}

void
egg_toolbar_prepend_widget (EggToolbar  *toolbar,
                GtkWidget   *widget,
                const gchar *tooltip_text,
                const gchar *tooltip_private_text)
{
  egg_toolbar_insert_element (toolbar, EGG_TOOLBAR_CHILD_WIDGET,
                  widget, NULL,
                  tooltip_text, tooltip_private_text,
                  NULL, NULL, NULL,
                  0);
}

void
egg_toolbar_insert_widget (EggToolbar *toolbar,
               GtkWidget  *widget,
               const char *tooltip_text,
               const char *tooltip_private_text,
               gint        position)
{
  egg_toolbar_insert_element (toolbar, EGG_TOOLBAR_CHILD_WIDGET,
                  widget, NULL,
                  tooltip_text, tooltip_private_text,
                  NULL, NULL, NULL,
                  position);
}

GtkWidget*
egg_toolbar_append_element (EggToolbar          *toolbar,
                GtkToolbarChildType  type,
                GtkWidget           *widget,
                const char          *text,
                const char          *tooltip_text,
                const char          *tooltip_private_text,
                GtkWidget           *icon,
                GtkSignalFunc        callback,
                gpointer             user_data)
{
  return egg_toolbar_insert_element (toolbar, type, widget, text,
                     tooltip_text, tooltip_private_text,
                     icon, callback, user_data,
                     toolbar->num_children);
}

GtkWidget *
egg_toolbar_prepend_element (EggToolbar          *toolbar,
                 GtkToolbarChildType  type,
                 GtkWidget           *widget,
                 const char          *text,
                 const char          *tooltip_text,
                 const char          *tooltip_private_text,
                 GtkWidget           *icon,
                 GtkSignalFunc        callback,
                 gpointer             user_data)
{
  return egg_toolbar_insert_element (toolbar, type, widget, text,
                     tooltip_text, tooltip_private_text,
                     icon, callback, user_data, 0);
}

GtkWidget *
egg_toolbar_insert_element (EggToolbar          *toolbar,
                EggToolbarChildType  type,
                GtkWidget           *widget,
                const char          *text,
                const char          *tooltip_text,
                const char          *tooltip_private_text,
                GtkWidget           *icon,
                GtkSignalFunc        callback,
                gpointer             user_data,
                gint                 position)
{
  return egg_toolbar_internal_insert_element (toolbar, type, widget, text,
                          tooltip_text, tooltip_private_text,
                          icon, callback, user_data, position, FALSE);
}

static GtkWidget *
egg_toolbar_internal_insert_element (EggToolbar          *toolbar,
                     EggToolbarChildType  type,
                     GtkWidget           *widget,
                     const char          *text,
                     const char          *tooltip_text,
                     const char          *tooltip_private_text,
                     GtkWidget           *icon,
                     GtkSignalFunc        callback,
                     gpointer             user_data,
                     gint                 position,
                     gboolean             use_stock)
{
  EggToolbarChild *child;
  EggToolItem *item = NULL;
  
  g_return_val_if_fail (EGG_IS_TOOLBAR (toolbar), NULL);
  
  if (type == EGG_TOOLBAR_CHILD_WIDGET)
    g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
  else if (type != EGG_TOOLBAR_CHILD_RADIOBUTTON)
    g_return_val_if_fail (widget == NULL, NULL);

  child = g_new (EggToolbarChild, 1);

  child->type = type;
  child->icon = NULL;
  child->label = NULL;

  switch (type)
    {
    case EGG_TOOLBAR_CHILD_SPACE:
      item = egg_separator_tool_item_new ();
      child->widget = NULL;
      break;

    case EGG_TOOLBAR_CHILD_WIDGET:
      item = egg_tool_item_new ();
      child->widget = widget;
      gtk_container_add (GTK_CONTAINER (item), child->widget);
      
      break;

    case EGG_TOOLBAR_CHILD_BUTTON:
      item = egg_tool_button_new ();
      child->widget = EGG_TOOL_BUTTON (item)->button;
      break;
      
    case EGG_TOOLBAR_CHILD_TOGGLEBUTTON:
      item = egg_toggle_tool_button_new ();
      child->widget = EGG_TOOL_BUTTON (item)->button;
      break;

    case EGG_TOOLBAR_CHILD_RADIOBUTTON:
      item = egg_radio_tool_button_new (widget
                    ? gtk_radio_button_get_group (GTK_RADIO_BUTTON (widget))
                    : NULL);
      child->widget = EGG_TOOL_BUTTON (item)->button;
      break;
    }

  /*
   * We need to connect to the button's clicked callback because some
   * programs may rely on that the widget in the callback is a GtkButton
   */
  if (callback)
    g_signal_connect (child->widget, "clicked",
              callback, user_data);
  
  if (type == EGG_TOOLBAR_CHILD_BUTTON ||
      type == EGG_TOOLBAR_CHILD_RADIOBUTTON ||
      type == EGG_TOOLBAR_CHILD_TOGGLEBUTTON)
    {
      if (text)
    {
      child->label = EGG_TOOL_BUTTON (item)->label;

      if (use_stock)
        g_object_set (G_OBJECT (item), "stock_id", text, NULL);
      else
        egg_tool_button_set_label (EGG_TOOL_BUTTON (item), text);       
    }

      if (icon)
    {
      child->icon = icon;
      egg_tool_button_set_icon_widget (EGG_TOOL_BUTTON (item), icon);
    }

    }

  if ((type != GTK_TOOLBAR_CHILD_SPACE) && tooltip_text)
    egg_tool_item_set_tooltip (item, toolbar->tooltips,
                   tooltip_text, tooltip_private_text);
  
  toolbar->children = g_list_insert (toolbar->children, child, position);
  egg_toolbar_insert_tool_item (toolbar, item, position);

  return child->widget;
}