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/* gtktoolbutton.c
*
* Copyright (C) 2002 Anders Carlsson <andersca@gnome.org>
* Copyright (C) 2002 James Henstridge <james@daa.com.au>
* Copyright (C) 2003 Soeren Sandmann <sandmann@daimi.au.dk>
*
* 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.
*/

#include "config.h"
#include "gtktoolbutton.h"
#include "gtkbutton.h"
#include "gtkhbox.h"
#include "gtkiconfactory.h"
#include "gtkimage.h"
#include "gtkimagemenuitem.h"
#include "gtklabel.h"
#include "gtkstock.h"
#include "gtkvbox.h"
#include "gtkintl.h"
#include "gtktoolbar.h"
#include "gtkactivatable.h"
#include "gtkprivate.h"

#include <string.h>


/**
* SECTION:gtktoolbutton
* @Short_description: A GtkToolItem subclass that displays buttons
* @Title: GtkToolButton
* @See_also: #GtkToolbar, #GtkMenuToolButton, #GtkToggleToolButton,
* #GtkRadioToolButton, #GtkSeparatorToolItem
*
* #GtkToolButton<!-- -->s are #GtkToolItems containing buttons.
*
* Use gtk_tool_button_new() to create a new #GtkToolButton. Use
* gtk_tool_button_new_with_stock() to create a #GtkToolButton
* containing a stock item.
*
* The label of a #GtkToolButton is determined by the properties
* #GtkToolButton:label-widget, #GtkToolButton:label, and
* #GtkToolButton:stock-id. If #GtkToolButton:label-widget is
* non-%NULL, then that widget is used as the label. Otherwise, if
* #GtkToolButton:label is non-%NULL, that string is used as the label.
* Otherwise, if #GtkToolButton:stock-id is non-%NULL, the label is
* determined by the stock item. Otherwise, the button does not have a label.
*
* The icon of a #GtkToolButton is determined by the properties
* #GtkToolButton:icon-widget and #GtkToolButton:stock-id. If
* #GtkToolButton:icon-widget is non-%NULL, then
* that widget is used as the icon. Otherwise, if #GtkToolButton:stock-id is
* non-%NULL, the icon is determined by the stock item. Otherwise,
* the button does not have a icon.
*/


#define MENU_ID "gtk-tool-button-menu-id"

enum {
  CLICKED,
  LAST_SIGNAL
};

enum {
  PROP_0,
  PROP_LABEL,
  PROP_USE_UNDERLINE,
  PROP_LABEL_WIDGET,
  PROP_STOCK_ID,
  PROP_ICON_NAME,
  PROP_ICON_WIDGET
};

static void gtk_tool_button_init (GtkToolButton *button,
GtkToolButtonClass *klass);
static void gtk_tool_button_class_init (GtkToolButtonClass *klass);
static void gtk_tool_button_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_tool_button_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_tool_button_property_notify (GObject *object,
GParamSpec *pspec);
static void gtk_tool_button_finalize (GObject *object);

static void gtk_tool_button_toolbar_reconfigured (GtkToolItem *tool_item);
static gboolean gtk_tool_button_create_menu_proxy (GtkToolItem *item);
static void button_clicked (GtkWidget *widget,
GtkToolButton *button);
static void gtk_tool_button_style_updated (GtkWidget *widget);

static void gtk_tool_button_construct_contents (GtkToolItem *tool_item);

static void gtk_tool_button_activatable_interface_init (GtkActivatableIface *iface);
static void gtk_tool_button_update (GtkActivatable *activatable,
GtkAction *action,
const gchar *property_name);
static void gtk_tool_button_sync_action_properties (GtkActivatable *activatable,
GtkAction *action);


struct _GtkToolButtonPrivate
{
  GtkWidget *button;

  gchar *stock_id;
  gchar *icon_name;
  gchar *label_text;
  GtkWidget *label_widget;
  GtkWidget *icon_widget;

  GtkSizeGroup *text_size_group;

  guint use_underline : 1;
  guint contents_invalid : 1;
};

static GObjectClass *parent_class = NULL;
static GtkActivatableIface *parent_activatable_iface;
static guint toolbutton_signals[LAST_SIGNAL] = { 0 };


GType
gtk_tool_button_get_type (void)
{
  static GType type = 0;
  
  if (!type)
    {
      const GInterfaceInfo activatable_info =
      {
        (GInterfaceInitFunc) gtk_tool_button_activatable_interface_init,
        (GInterfaceFinalizeFunc) NULL,
        NULL
      };

      type = g_type_register_static_simple (GTK_TYPE_TOOL_ITEM,
I_("GtkToolButton"),
sizeof (GtkToolButtonClass),
(GClassInitFunc) gtk_tool_button_class_init,
sizeof (GtkToolButton),
(GInstanceInitFunc) gtk_tool_button_init,
0);

      g_type_add_interface_static (type, GTK_TYPE_ACTIVATABLE,
                                   &activatable_info);
    }
  return type;
}

static void
gtk_tool_button_class_init (GtkToolButtonClass *klass)
{
  GObjectClass *object_class;
  GtkWidgetClass *widget_class;
  GtkToolItemClass *tool_item_class;
  
  parent_class = g_type_class_peek_parent (klass);
  
  object_class = (GObjectClass *)klass;
  widget_class = (GtkWidgetClass *)klass;
  tool_item_class = (GtkToolItemClass *)klass;
  
  object_class->set_property = gtk_tool_button_set_property;
  object_class->get_property = gtk_tool_button_get_property;
  object_class->notify = gtk_tool_button_property_notify;
  object_class->finalize = gtk_tool_button_finalize;

  widget_class->style_updated = gtk_tool_button_style_updated;

  tool_item_class->create_menu_proxy = gtk_tool_button_create_menu_proxy;
  tool_item_class->toolbar_reconfigured = gtk_tool_button_toolbar_reconfigured;
  
  klass->button_type = GTK_TYPE_BUTTON;

  /* Properties are interpreted like this:
*
* - if the tool button has an icon_widget, then that widget
* will be used as the icon. Otherwise, if the tool button
* has a stock id, the corresponding stock icon will be
* used. Otherwise, if the tool button has an icon name,
* the corresponding icon from the theme will be used.
* Otherwise, the tool button will not have an icon.
*
* - if the tool button has a label_widget then that widget
* will be used as the label. Otherwise, if the tool button
* has a label text, that text will be used as label. Otherwise,
* if the toolbutton has a stock id, the corresponding text
* will be used as label. Otherwise, if the tool button has
* an icon name, the corresponding icon name from the theme will
* be used. Otherwise, the toolbutton will have an empty label.
*
* - The use_underline property only has an effect when the label
* on the toolbutton comes from the label property (ie. not from
* label_widget or from stock_id).
*
* In that case, if use_underline is set,
*
* - underscores are removed from the label text before
* the label is shown on the toolbutton unless the
* underscore is followed by another underscore
*
* - an underscore indicates that the next character when
* used in the overflow menu should be used as a
* mnemonic.
*
* In short: use_underline = TRUE means that the label text has
* the form "_Open" and the toolbar should take appropriate
* action.
*/

  g_object_class_install_property (object_class,
PROP_LABEL,
g_param_spec_string ("label",
P_("Label"),
P_("Text to show in the item."),
NULL,
GTK_PARAM_READWRITE));
  g_object_class_install_property (object_class,
PROP_USE_UNDERLINE,
g_param_spec_boolean ("use-underline",
P_("Use underline"),
P_("If set, an underline in the label property indicates that the next character should be used for the mnemonic accelerator key in the overflow menu"),
FALSE,
GTK_PARAM_READWRITE));
  g_object_class_install_property (object_class,
PROP_LABEL_WIDGET,
g_param_spec_object ("label-widget",
P_("Label widget"),
P_("Widget to use as the item label"),
GTK_TYPE_WIDGET,
GTK_PARAM_READWRITE));
  g_object_class_install_property (object_class,
PROP_STOCK_ID,
g_param_spec_string ("stock-id",
P_("Stock Id"),
P_("The stock icon displayed on the item"),
NULL,
GTK_PARAM_READWRITE));

  /**
* GtkToolButton:icon-name:
*
* The name of the themed icon displayed on the item.
* This property only has an effect if not overridden by "label",
* "icon_widget" or "stock_id" properties.
*
* Since: 2.8
*/
  g_object_class_install_property (object_class,
PROP_ICON_NAME,
g_param_spec_string ("icon-name",
P_("Icon name"),
P_("The name of the themed icon displayed on the item"),
NULL,
GTK_PARAM_READWRITE));
  g_object_class_install_property (object_class,
PROP_ICON_WIDGET,
g_param_spec_object ("icon-widget",
P_("Icon widget"),
P_("Icon widget to display in the item"),
GTK_TYPE_WIDGET,
GTK_PARAM_READWRITE));

  /**
* GtkButton:icon-spacing:
*
* Spacing in pixels between the icon and label.
*
* Since: 2.10
*/
  gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("icon-spacing",
P_("Icon spacing"),
P_("Spacing in pixels between the icon and label"),
0,
G_MAXINT,
3,
GTK_PARAM_READWRITE));

/**
* GtkToolButton::clicked:
* @toolbutton: the object that emitted the signal
*
* This signal is emitted when the tool button is clicked with the mouse
* or activated with the keyboard.
**/
  toolbutton_signals[CLICKED] =
    g_signal_new (I_("clicked"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkToolButtonClass, clicked),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
  
  g_type_class_add_private (object_class, sizeof (GtkToolButtonPrivate));
}

static void
gtk_tool_button_init (GtkToolButton *button,
GtkToolButtonClass *klass)
{
  GtkToolItem *toolitem = GTK_TOOL_ITEM (button);

  button->priv = G_TYPE_INSTANCE_GET_PRIVATE (button,
                                              GTK_TYPE_TOOL_BUTTON,
                                              GtkToolButtonPrivate);

  button->priv->contents_invalid = TRUE;

  gtk_tool_item_set_homogeneous (toolitem, TRUE);

  /* create button */
  button->priv->button = g_object_new (klass->button_type, NULL);
  gtk_button_set_focus_on_click (GTK_BUTTON (button->priv->button), FALSE);
  g_signal_connect_object (button->priv->button, "clicked",
G_CALLBACK (button_clicked), button, 0);

  gtk_container_add (GTK_CONTAINER (button), button->priv->button);
  gtk_widget_show (button->priv->button);
}

static void
gtk_tool_button_construct_contents (GtkToolItem *tool_item)
{
  GtkToolButton *button = GTK_TOOL_BUTTON (tool_item);
  GtkWidget *child;
  GtkWidget *label = NULL;
  GtkWidget *icon = NULL;
  GtkToolbarStyle style;
  gboolean need_label = FALSE;
  gboolean need_icon = FALSE;
  GtkIconSize icon_size;
  GtkWidget *box = NULL;
  guint icon_spacing;
  GtkOrientation text_orientation = GTK_ORIENTATION_HORIZONTAL;
  GtkSizeGroup *size_group = NULL;
  GtkWidget *parent;

  button->priv->contents_invalid = FALSE;

  gtk_widget_style_get (GTK_WIDGET (tool_item),
"icon-spacing", &icon_spacing,
NULL);

  if (button->priv->icon_widget)
    {
      parent = gtk_widget_get_parent (button->priv->icon_widget);
      if (parent)
        {
          gtk_container_remove (GTK_CONTAINER (parent),
                                button->priv->icon_widget);
        }
    }

  if (button->priv->label_widget)
    {
      parent = gtk_widget_get_parent (button->priv->label_widget);
      if (parent)
        {
          gtk_container_remove (GTK_CONTAINER (parent),
                                button->priv->label_widget);
        }
    }

  child = gtk_bin_get_child (GTK_BIN (button->priv->button));
  if (child)
    {
      /* Note: we are not destroying the label_widget or icon_widget
* here because they were removed from their containers above
*/
      gtk_widget_destroy (child);
    }

  style = gtk_tool_item_get_toolbar_style (GTK_TOOL_ITEM (button));
  
  if (style != GTK_TOOLBAR_TEXT)
    need_icon = TRUE;

  if (style != GTK_TOOLBAR_ICONS && style != GTK_TOOLBAR_BOTH_HORIZ)
    need_label = TRUE;

  if (style == GTK_TOOLBAR_BOTH_HORIZ &&
      (gtk_tool_item_get_is_important (GTK_TOOL_ITEM (button)) ||
       gtk_tool_item_get_orientation (GTK_TOOL_ITEM (button)) == GTK_ORIENTATION_VERTICAL ||
       gtk_tool_item_get_text_orientation (GTK_TOOL_ITEM (button)) == GTK_ORIENTATION_VERTICAL))
    {
      need_label = TRUE;
    }
  
  if (style == GTK_TOOLBAR_ICONS && button->priv->icon_widget == NULL &&
      button->priv->stock_id == NULL && button->priv->icon_name == NULL)
    {
      need_label = TRUE;
      need_icon = FALSE;
      style = GTK_TOOLBAR_TEXT;
    }

  if (style == GTK_TOOLBAR_TEXT && button->priv->label_widget == NULL &&
      button->priv->stock_id == NULL && button->priv->label_text == NULL)
    {
      need_label = FALSE;
      need_icon = TRUE;
      style = GTK_TOOLBAR_ICONS;
    }

  if (need_label)
    {
      if (button->priv->label_widget)
{
label = button->priv->label_widget;
}
      else
{
GtkStockItem stock_item;
gboolean elide;
gchar *label_text;

if (button->priv->label_text)
{
label_text = button->priv->label_text;
elide = button->priv->use_underline;
}
else if (button->priv->stock_id && gtk_stock_lookup (button->priv->stock_id, &stock_item))
{
label_text = stock_item.label;
elide = TRUE;
}
else
{
label_text = "";
elide = FALSE;
}

if (elide)
label_text = _gtk_toolbar_elide_underscores (label_text);
else
label_text = g_strdup (label_text);

label = gtk_label_new (label_text);

g_free (label_text);

gtk_widget_show (label);
}

      if (GTK_IS_LABEL (label))
        {
          gtk_label_set_ellipsize (GTK_LABEL (label),
gtk_tool_item_get_ellipsize_mode (GTK_TOOL_ITEM (button)));
          text_orientation = gtk_tool_item_get_text_orientation (GTK_TOOL_ITEM (button));
          if (text_orientation == GTK_ORIENTATION_HORIZONTAL)
{
              gtk_label_set_angle (GTK_LABEL (label), 0);
              gtk_misc_set_alignment (GTK_MISC (label),
                                      gtk_tool_item_get_text_alignment (GTK_TOOL_ITEM (button)),
                                      0.5);
            }
          else
            {
              gtk_label_set_ellipsize (GTK_LABEL (label), PANGO_ELLIPSIZE_NONE);
if (gtk_widget_get_direction (GTK_WIDGET (tool_item)) == GTK_TEXT_DIR_RTL)
gtk_label_set_angle (GTK_LABEL (label), -90);
else
gtk_label_set_angle (GTK_LABEL (label), 90);
              gtk_misc_set_alignment (GTK_MISC (label),
                                      0.5,
                                      1 - gtk_tool_item_get_text_alignment (GTK_TOOL_ITEM (button)));
            }
        }
    }

  icon_size = gtk_tool_item_get_icon_size (GTK_TOOL_ITEM (button));
  if (need_icon)
    {
      if (button->priv->icon_widget)
{
icon = button->priv->icon_widget;

if (GTK_IS_IMAGE (icon))
{
g_object_set (button->priv->icon_widget,
"icon-size", icon_size,
NULL);
}
}
      else if (button->priv->stock_id &&
gtk_icon_factory_lookup_default (button->priv->stock_id))
{
icon = gtk_image_new_from_stock (button->priv->stock_id, icon_size);
gtk_widget_show (icon);
}
      else if (button->priv->icon_name)
{
icon = gtk_image_new_from_icon_name (button->priv->icon_name, icon_size);
gtk_widget_show (icon);
}

      if (GTK_IS_MISC (icon) && text_orientation == GTK_ORIENTATION_HORIZONTAL)
gtk_misc_set_alignment (GTK_MISC (icon),
1.0 - gtk_tool_item_get_text_alignment (GTK_TOOL_ITEM (button)),
0.5);
      else if (GTK_IS_MISC (icon))
gtk_misc_set_alignment (GTK_MISC (icon),
0.5,
gtk_tool_item_get_text_alignment (GTK_TOOL_ITEM (button)));

      if (icon)
{
size_group = gtk_tool_item_get_text_size_group (GTK_TOOL_ITEM (button));
if (size_group != NULL)
gtk_size_group_add_widget (size_group, icon);
}
    }

  switch (style)
    {
    case GTK_TOOLBAR_ICONS:
      if (icon)
gtk_container_add (GTK_CONTAINER (button->priv->button), icon);
      break;

    case GTK_TOOLBAR_BOTH:
      if (text_orientation == GTK_ORIENTATION_HORIZONTAL)
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, icon_spacing);
      else
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, icon_spacing);
      if (icon)
gtk_box_pack_start (GTK_BOX (box), icon, TRUE, TRUE, 0);
      gtk_box_pack_end (GTK_BOX (box), label, FALSE, TRUE, 0);
      gtk_container_add (GTK_CONTAINER (button->priv->button), box);
      break;

    case GTK_TOOLBAR_BOTH_HORIZ:
      if (text_orientation == GTK_ORIENTATION_HORIZONTAL)
{
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, icon_spacing);
if (icon)
gtk_box_pack_start (GTK_BOX (box), icon, label? FALSE : TRUE, TRUE, 0);
if (label)
gtk_box_pack_end (GTK_BOX (box), label, TRUE, TRUE, 0);
}
      else
{
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, icon_spacing);
if (icon)
gtk_box_pack_end (GTK_BOX (box), icon, label ? FALSE : TRUE, TRUE, 0);
if (label)
gtk_box_pack_start (GTK_BOX (box), label, TRUE, TRUE, 0);
}
      gtk_container_add (GTK_CONTAINER (button->priv->button), box);
      break;

    case GTK_TOOLBAR_TEXT:
      gtk_container_add (GTK_CONTAINER (button->priv->button), label);
      break;
    }

  if (box)
    gtk_widget_show (box);

  gtk_button_set_relief (GTK_BUTTON (button->priv->button),
gtk_tool_item_get_relief_style (GTK_TOOL_ITEM (button)));

  gtk_tool_item_rebuild_menu (tool_item);
  
  gtk_widget_queue_resize (GTK_WIDGET (button));
}

static void
gtk_tool_button_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
  GtkToolButton *button = GTK_TOOL_BUTTON (object);
  
  switch (prop_id)
    {
    case PROP_LABEL:
      gtk_tool_button_set_label (button, g_value_get_string (value));
      break;
    case PROP_USE_UNDERLINE:
      gtk_tool_button_set_use_underline (button, g_value_get_boolean (value));
      break;
    case PROP_LABEL_WIDGET:
      gtk_tool_button_set_label_widget (button, g_value_get_object (value));
      break;
    case PROP_STOCK_ID:
      gtk_tool_button_set_stock_id (button, g_value_get_string (value));
      break;
    case PROP_ICON_NAME:
      gtk_tool_button_set_icon_name (button, g_value_get_string (value));
      break;
    case PROP_ICON_WIDGET:
      gtk_tool_button_set_icon_widget (button, g_value_get_object (value));
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }
}

static void
gtk_tool_button_property_notify (GObject *object,
GParamSpec *pspec)
{
  GtkToolButton *button = GTK_TOOL_BUTTON (object);

  if (button->priv->contents_invalid ||
      strcmp ("is-important", pspec->name) == 0)
    gtk_tool_button_construct_contents (GTK_TOOL_ITEM (object));

  if (parent_class->notify)
    parent_class->notify (object, pspec);
}

static void
gtk_tool_button_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
  GtkToolButton *button = GTK_TOOL_BUTTON (object);

  switch (prop_id)
    {
    case PROP_LABEL:
      g_value_set_string (value, gtk_tool_button_get_label (button));
      break;
    case PROP_LABEL_WIDGET:
      g_value_set_object (value, gtk_tool_button_get_label_widget (button));
      break;
    case PROP_USE_UNDERLINE:
      g_value_set_boolean (value, gtk_tool_button_get_use_underline (button));
      break;
    case PROP_STOCK_ID:
      g_value_set_string (value, button->priv->stock_id);
      break;
    case PROP_ICON_NAME:
      g_value_set_string (value, button->priv->icon_name);
      break;
    case PROP_ICON_WIDGET:
      g_value_set_object (value, button->priv->icon_widget);
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }
}

static void
gtk_tool_button_finalize (GObject *object)
{
  GtkToolButton *button = GTK_TOOL_BUTTON (object);

  g_free (button->priv->stock_id);
  g_free (button->priv->icon_name);
  g_free (button->priv->label_text);

  if (button->priv->label_widget)
    g_object_unref (button->priv->label_widget);

  if (button->priv->icon_widget)
    g_object_unref (button->priv->icon_widget);
  
  parent_class->finalize (object);
}

static GtkWidget *
clone_image_menu_size (GtkImage *image, GtkSettings *settings)
{
  GtkImageType storage_type = gtk_image_get_storage_type (image);

  if (storage_type == GTK_IMAGE_STOCK)
    {
      gchar *stock_id;
      gtk_image_get_stock (image, &stock_id, NULL);
      return gtk_image_new_from_stock (stock_id, GTK_ICON_SIZE_MENU);
    }
  else if (storage_type == GTK_IMAGE_ICON_NAME)
    {
      const gchar *icon_name;
      gtk_image_get_icon_name (image, &icon_name, NULL);
      return gtk_image_new_from_icon_name (icon_name, GTK_ICON_SIZE_MENU);
    }
  else if (storage_type == GTK_IMAGE_ICON_SET)
    {
      GtkIconSet *icon_set;
      gtk_image_get_icon_set (image, &icon_set, NULL);
      return gtk_image_new_from_icon_set (icon_set, GTK_ICON_SIZE_MENU);
    }
  else if (storage_type == GTK_IMAGE_GICON)
    {
      GIcon *icon;
      gtk_image_get_gicon (image, &icon, NULL);
      return gtk_image_new_from_gicon (icon, GTK_ICON_SIZE_MENU);
    }
  else if (storage_type == GTK_IMAGE_PIXBUF)
    {
      gint width, height;
      
      if (settings &&
gtk_icon_size_lookup_for_settings (settings, GTK_ICON_SIZE_MENU,
&width, &height))
{
GdkPixbuf *src_pixbuf, *dest_pixbuf;
GtkWidget *cloned_image;

src_pixbuf = gtk_image_get_pixbuf (image);
dest_pixbuf = gdk_pixbuf_scale_simple (src_pixbuf, width, height,
GDK_INTERP_BILINEAR);

cloned_image = gtk_image_new_from_pixbuf (dest_pixbuf);
g_object_unref (dest_pixbuf);

return cloned_image;
}
    }

  return NULL;
}
      
static gboolean
gtk_tool_button_create_menu_proxy (GtkToolItem *item)
{
  GtkToolButton *button = GTK_TOOL_BUTTON (item);
  GtkWidget *menu_item;
  GtkWidget *menu_image = NULL;
  GtkStockItem stock_item;
  gboolean use_mnemonic = TRUE;
  const char *label;

  if (_gtk_tool_item_create_menu_proxy (item))
    return TRUE;
 
  if (GTK_IS_LABEL (button->priv->label_widget))
    {
      label = gtk_label_get_label (GTK_LABEL (button->priv->label_widget));
      use_mnemonic = gtk_label_get_use_underline (GTK_LABEL (button->priv->label_widget));
    }
  else if (button->priv->label_text)
    {
      label = button->priv->label_text;
      use_mnemonic = button->priv->use_underline;
    }
  else if (button->priv->stock_id && gtk_stock_lookup (button->priv->stock_id, &stock_item))
    {
      label = stock_item.label;
    }
  else
    {
      label = "";
    }
  
  if (use_mnemonic)
    menu_item = gtk_image_menu_item_new_with_mnemonic (label);
  else
    menu_item = gtk_image_menu_item_new_with_label (label);

  if (GTK_IS_IMAGE (button->priv->icon_widget))
    {
      menu_image = clone_image_menu_size (GTK_IMAGE (button->priv->icon_widget),
gtk_widget_get_settings (GTK_WIDGET (button)));
    }
  else if (button->priv->stock_id)
    {
      menu_image = gtk_image_new_from_stock (button->priv->stock_id, GTK_ICON_SIZE_MENU);
    }

  if (menu_image)
    gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (menu_item), menu_image);

  g_signal_connect_closure_by_id (menu_item,
g_signal_lookup ("activate", G_OBJECT_TYPE (menu_item)), 0,
g_cclosure_new_object_swap (G_CALLBACK (gtk_button_clicked),
G_OBJECT (GTK_TOOL_BUTTON (button)->priv->button)),
FALSE);

  gtk_tool_item_set_proxy_menu_item (GTK_TOOL_ITEM (button), MENU_ID, menu_item);
  
  return TRUE;
}

static void
button_clicked (GtkWidget *widget,
GtkToolButton *button)
{
  GtkAction *action;

  action = gtk_activatable_get_related_action (GTK_ACTIVATABLE (button));
  
  if (action)
    gtk_action_activate (action);

  g_signal_emit_by_name (button, "clicked");
}

static void
gtk_tool_button_toolbar_reconfigured (GtkToolItem *tool_item)
{
  gtk_tool_button_construct_contents (tool_item);
}

static void
gtk_tool_button_update_icon_spacing (GtkToolButton *button)
{
  GtkWidget *box;
  guint spacing;

  box = gtk_bin_get_child (GTK_BIN (button->priv->button));
  if (GTK_IS_BOX (box))
    {
      gtk_widget_style_get (GTK_WIDGET (button),
"icon-spacing", &spacing,
NULL);
      gtk_box_set_spacing (GTK_BOX (box), spacing);
    }
}

static void
gtk_tool_button_style_updated (GtkWidget *widget)
{
  GTK_WIDGET_CLASS (parent_class)->style_updated (widget);

  gtk_tool_button_update_icon_spacing (GTK_TOOL_BUTTON (widget));
}

static void
gtk_tool_button_activatable_interface_init (GtkActivatableIface *iface)
{
  parent_activatable_iface = g_type_interface_peek_parent (iface);
  iface->update = gtk_tool_button_update;
  iface->sync_action_properties = gtk_tool_button_sync_action_properties;
}

static void
gtk_tool_button_update (GtkActivatable *activatable,
GtkAction *action,
const gchar *property_name)
{
  GtkToolButton *button;
  GtkWidget *image;

  parent_activatable_iface->update (activatable, action, property_name);

  if (!gtk_activatable_get_use_action_appearance (activatable))
    return;

  button = GTK_TOOL_BUTTON (activatable);
  
  if (strcmp (property_name, "short-label") == 0)
    gtk_tool_button_set_label (button, gtk_action_get_short_label (action));
  else if (strcmp (property_name, "stock-id") == 0)
    gtk_tool_button_set_stock_id (button, gtk_action_get_stock_id (action));
  else if (strcmp (property_name, "gicon") == 0)
    {
      const gchar *stock_id = gtk_action_get_stock_id (action);
      GIcon *icon = gtk_action_get_gicon (action);
      GtkIconSize icon_size = GTK_ICON_SIZE_BUTTON;

      if ((stock_id && gtk_icon_factory_lookup_default (stock_id)) || !icon)
image = NULL;
      else
{
image = gtk_tool_button_get_icon_widget (button);
icon_size = gtk_tool_item_get_icon_size (GTK_TOOL_ITEM (button));

if (!image)
image = gtk_image_new ();
}

      gtk_tool_button_set_icon_widget (button, image);
      gtk_image_set_from_gicon (GTK_IMAGE (image), icon, icon_size);

    }
  else if (strcmp (property_name, "icon-name") == 0)
    gtk_tool_button_set_icon_name (button, gtk_action_get_icon_name (action));
}

static void
gtk_tool_button_sync_action_properties (GtkActivatable *activatable,
GtkAction *action)
{
  GtkToolButton *button;
  GIcon *icon;
  const gchar *stock_id;

  parent_activatable_iface->sync_action_properties (activatable, action);

  if (!action)
    return;

  if (!gtk_activatable_get_use_action_appearance (activatable))
    return;

  button = GTK_TOOL_BUTTON (activatable);
  stock_id = gtk_action_get_stock_id (action);

  gtk_tool_button_set_label (button, gtk_action_get_short_label (action));
  gtk_tool_button_set_use_underline (button, TRUE);
  gtk_tool_button_set_stock_id (button, stock_id);
  gtk_tool_button_set_icon_name (button, gtk_action_get_icon_name (action));

  if (stock_id && gtk_icon_factory_lookup_default (stock_id))
      gtk_tool_button_set_icon_widget (button, NULL);
  else if ((icon = gtk_action_get_gicon (action)) != NULL)
    {
      GtkIconSize icon_size = gtk_tool_item_get_icon_size (GTK_TOOL_ITEM (button));
      GtkWidget *image = gtk_tool_button_get_icon_widget (button);
      
      if (!image)
{
image = gtk_image_new ();
gtk_widget_show (image);
gtk_tool_button_set_icon_widget (button, image);
}

      gtk_image_set_from_gicon (GTK_IMAGE (image), icon, icon_size);
    }
  else if (gtk_action_get_icon_name (action))
    gtk_tool_button_set_icon_name (button, gtk_action_get_icon_name (action));
  else
    gtk_tool_button_set_label (button, gtk_action_get_short_label (action));
}

/**
* gtk_tool_button_new_from_stock:
* @stock_id: the name of the stock item
*
* Creates a new #GtkToolButton containing the image and text from a
* stock item. Some stock ids have preprocessor macros like #GTK_STOCK_OK
* and #GTK_STOCK_APPLY.
*
* It is an error if @stock_id is not a name of a stock item.
*
* Return value: A new #GtkToolButton
*
* Since: 2.4
**/
GtkToolItem *
gtk_tool_button_new_from_stock (const gchar *stock_id)
{
  GtkToolButton *button;

  g_return_val_if_fail (stock_id != NULL, NULL);
    
  button = g_object_new (GTK_TYPE_TOOL_BUTTON,
"stock-id", stock_id,
NULL);

  return GTK_TOOL_ITEM (button);
}

/**
* gtk_tool_button_new:
* @label: (allow-none): a string that will be used as label, or %NULL
* @icon_widget: (allow-none): a #GtkMisc widget that will be used as icon widget, or %NULL
*
* Creates a new %GtkToolButton using @icon_widget as icon and @label as
* label.
*
* Return value: A new #GtkToolButton
*
* Since: 2.4
**/
GtkToolItem *
gtk_tool_button_new (GtkWidget *icon_widget,
const gchar *label)
{
  GtkToolButton *button;

  g_return_val_if_fail (icon_widget == NULL || GTK_IS_MISC (icon_widget), NULL);

  button = g_object_new (GTK_TYPE_TOOL_BUTTON,
                         "label", label,
                         "icon-widget", icon_widget,
NULL);

  return GTK_TOOL_ITEM (button);
}

/**
* gtk_tool_button_set_label:
* @button: a #GtkToolButton
* @label: (allow-none): a string that will be used as label, or %NULL.
*
* Sets @label as the label used for the tool button. The "label" property
* only has an effect if not overridden by a non-%NULL "label_widget" property.
* If both the "label_widget" and "label" properties are %NULL, the label
* is determined by the "stock_id" property. If the "stock_id" property is also
* %NULL, @button will not have a label.
*
* Since: 2.4
**/
void
gtk_tool_button_set_label (GtkToolButton *button,
const gchar *label)
{
  gchar *old_label;
  gchar *elided_label;
  AtkObject *accessible;
  
  g_return_if_fail (GTK_IS_TOOL_BUTTON (button));

  old_label = button->priv->label_text;

  button->priv->label_text = g_strdup (label);
  button->priv->contents_invalid = TRUE;

  if (label)
    {
      elided_label = _gtk_toolbar_elide_underscores (label);
      accessible = gtk_widget_get_accessible (GTK_WIDGET (button->priv->button));
      atk_object_set_name (accessible, elided_label);
      g_free (elided_label);
    }

  g_free (old_label);
 
  g_object_notify (G_OBJECT (button), "label");
}

/**
* gtk_tool_button_get_label:
* @button: a #GtkToolButton
*
* Returns the label used by the tool button, or %NULL if the tool button
* doesn't have a label. or uses a the label from a stock item. The returned
* string is owned by GTK+, and must not be modified or freed.
*
* Return value: The label, or %NULL
*
* Since: 2.4
**/
const gchar *
gtk_tool_button_get_label (GtkToolButton *button)
{
  g_return_val_if_fail (GTK_IS_TOOL_BUTTON (button), NULL);

  return button->priv->label_text;
}

/**
* gtk_tool_button_set_use_underline:
* @button: a #GtkToolButton
* @use_underline: whether the button label has the form "_Open"
*
* If set, an underline in the label property indicates that the next character
* should be used for the mnemonic accelerator key in the overflow menu. For
* example, if the label property is "_Open" and @use_underline is %TRUE,
* the label on the tool button will be "Open" and the item on the overflow
* menu will have an underlined 'O'.
*
* Labels shown on tool buttons never have mnemonics on them; this property
* only affects the menu item on the overflow menu.
*
* Since: 2.4
**/
void
gtk_tool_button_set_use_underline (GtkToolButton *button,
gboolean use_underline)
{
  g_return_if_fail (GTK_IS_TOOL_BUTTON (button));

  use_underline = use_underline != FALSE;

  if (use_underline != button->priv->use_underline)
    {
      button->priv->use_underline = use_underline;
      button->priv->contents_invalid = TRUE;

      g_object_notify (G_OBJECT (button), "use-underline");
    }
}

/**
* gtk_tool_button_get_use_underline:
* @button: a #GtkToolButton
*
* Returns whether underscores in the label property are used as mnemonics
* on menu items on the overflow menu. See gtk_tool_button_set_use_underline().
*
* Return value: %TRUE if underscores in the label property are used as
* mnemonics on menu items on the overflow menu.
*
* Since: 2.4
**/
gboolean
gtk_tool_button_get_use_underline (GtkToolButton *button)
{
  g_return_val_if_fail (GTK_IS_TOOL_BUTTON (button), FALSE);

  return button->priv->use_underline;
}

/**
* gtk_tool_button_set_stock_id:
* @button: a #GtkToolButton
* @stock_id: (allow-none): a name of a stock item, or %NULL
*
* Sets the name of the stock item. See gtk_tool_button_new_from_stock().
* The stock_id property only has an effect if not
* overridden by non-%NULL "label" and "icon_widget" properties.
*
* Since: 2.4
**/
void
gtk_tool_button_set_stock_id (GtkToolButton *button,
const gchar *stock_id)
{
  gchar *old_stock_id;
  
  g_return_if_fail (GTK_IS_TOOL_BUTTON (button));

  old_stock_id = button->priv->stock_id;

  button->priv->stock_id = g_strdup (stock_id);
  button->priv->contents_invalid = TRUE;

  g_free (old_stock_id);
  
  g_object_notify (G_OBJECT (button), "stock-id");
}

/**
* gtk_tool_button_get_stock_id:
* @button: a #GtkToolButton
*
* Returns the name of the stock item. See gtk_tool_button_set_stock_id().
* The returned string is owned by GTK+ and must not be freed or modifed.
*
* Return value: the name of the stock item for @button.
*
* Since: 2.4
**/
const gchar *
gtk_tool_button_get_stock_id (GtkToolButton *button)
{
  g_return_val_if_fail (GTK_IS_TOOL_BUTTON (button), NULL);

  return button->priv->stock_id;
}

/**
* gtk_tool_button_set_icon_name
* @button: a #GtkToolButton
* @icon_name: (allow-none): the name of the themed icon
*
* Sets the icon for the tool button from a named themed icon.
* See the docs for #GtkIconTheme for more details.
* The "icon_name" property only has an effect if not
* overridden by non-%NULL "label", "icon_widget" and "stock_id"
* properties.
*
* Since: 2.8
**/
void
gtk_tool_button_set_icon_name (GtkToolButton *button,
const gchar *icon_name)
{
  gchar *old_icon_name;

  g_return_if_fail (GTK_IS_TOOL_BUTTON (button));

  old_icon_name = button->priv->icon_name;

  button->priv->icon_name = g_strdup (icon_name);
  button->priv->contents_invalid = TRUE;

  g_free (old_icon_name);

  g_object_notify (G_OBJECT (button), "icon-name");
}

/**
* gtk_tool_button_get_icon_name
* @button: a #GtkToolButton
*
* Returns the name of the themed icon for the tool button,
* see gtk_tool_button_set_icon_name().
*
* Returns: the icon name or %NULL if the tool button has
* no themed icon
*
* Since: 2.8
**/
const gchar*
gtk_tool_button_get_icon_name (GtkToolButton *button)
{
  g_return_val_if_fail (GTK_IS_TOOL_BUTTON (button), NULL);

  return button->priv->icon_name;
}

/**
* gtk_tool_button_set_icon_widget:
* @button: a #GtkToolButton
* @icon_widget: (allow-none): the widget used as icon, or %NULL
*
* Sets @icon as the widget used as icon on @button. If @icon_widget is
* %NULL the icon is determined by the "stock_id" property. If the
* "stock_id" property is also %NULL, @button will not have an icon.
*
* Since: 2.4
**/
void
gtk_tool_button_set_icon_widget (GtkToolButton *button,
GtkWidget *icon_widget)
{
  g_return_if_fail (GTK_IS_TOOL_BUTTON (button));
  g_return_if_fail (icon_widget == NULL || GTK_IS_WIDGET (icon_widget));

  if (icon_widget != button->priv->icon_widget)
    {
      if (button->priv->icon_widget)
{
          GtkWidget *parent;

          parent = gtk_widget_get_parent (button->priv->icon_widget);
if (parent)
            gtk_container_remove (GTK_CONTAINER (parent),
                                  button->priv->icon_widget);

g_object_unref (button->priv->icon_widget);
}
      
      if (icon_widget)
g_object_ref_sink (icon_widget);

      button->priv->icon_widget = icon_widget;
      button->priv->contents_invalid = TRUE;
      
      g_object_notify (G_OBJECT (button), "icon-widget");
    }
}

/**
* gtk_tool_button_set_label_widget:
* @button: a #GtkToolButton
* @label_widget: (allow-none): the widget used as label, or %NULL
*
* Sets @label_widget as the widget that will be used as the label
* for @button. If @label_widget is %NULL the "label" property is used
* as label. If "label" is also %NULL, the label in the stock item
* determined by the "stock_id" property is used as label. If
* "stock_id" is also %NULL, @button does not have a label.
*
* Since: 2.4
**/
void
gtk_tool_button_set_label_widget (GtkToolButton *button,
GtkWidget *label_widget)
{
  g_return_if_fail (GTK_IS_TOOL_BUTTON (button));
  g_return_if_fail (label_widget == NULL || GTK_IS_WIDGET (label_widget));

  if (label_widget != button->priv->label_widget)
    {
      if (button->priv->label_widget)
{
          GtkWidget *parent;

          parent = gtk_widget_get_parent (button->priv->label_widget);
          if (parent)
            gtk_container_remove (GTK_CONTAINER (parent),
                                  button->priv->label_widget);

g_object_unref (button->priv->label_widget);
}
      
      if (label_widget)
g_object_ref_sink (label_widget);

      button->priv->label_widget = label_widget;
      button->priv->contents_invalid = TRUE;
      
      g_object_notify (G_OBJECT (button), "label-widget");
    }
}

/**
* gtk_tool_button_get_label_widget:
* @button: a #GtkToolButton
*
* Returns the widget used as label on @button.
* See gtk_tool_button_set_label_widget().
*
* Return value: (transfer none): The widget used as label
* on @button, or %NULL.
*
* Since: 2.4
**/
GtkWidget *
gtk_tool_button_get_label_widget (GtkToolButton *button)
{
  g_return_val_if_fail (GTK_IS_TOOL_BUTTON (button), NULL);

  return button->priv->label_widget;
}

/**
* gtk_tool_button_get_icon_widget:
* @button: a #GtkToolButton
*
* Return the widget used as icon widget on @button.
* See gtk_tool_button_set_icon_widget().
*
* Return value: (transfer none): The widget used as icon
* on @button, or %NULL.
*
* Since: 2.4
**/
GtkWidget *
gtk_tool_button_get_icon_widget (GtkToolButton *button)
{
  g_return_val_if_fail (GTK_IS_TOOL_BUTTON (button), NULL);

  return button->priv->icon_widget;
}

GtkWidget *
_gtk_tool_button_get_button (GtkToolButton *button)
{
  g_return_val_if_fail (GTK_IS_TOOL_BUTTON (button), NULL);

  return button->priv->button;
}
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