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547b0bd938
gtk2/gtk/gtkitemfactory.c
Owen Taylor 547b0bd938 Fix sensitivity of file operation buttons and buttons inside fileop 
Fri Oct 25 14:51:34 2002  Owen Taylor  <otaylor@redhat.com>

        * gtk/gtkfilesel.c: Fix sensitivity of file operation
        buttons and buttons inside fileop dialogs to update
        properly based on the contents of the entries.
        (#74267, based on part of a patch from Muktha
        Narayan)

        * gtk/gtkitemfactory.c (gtk_item_factory_create_item):
        Warn if loading <ImageItem> image fails.

        * tests/testgtk.c: Fix data for "apple" inline pixbuf
        to be valid.
2002-10-25 19:59:41 +00:00

1600 lines
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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* GtkItemFactory: Flexible item factory with automatic rc handling
* Copyright (C) 1998 Tim Janik
*
* 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 "config.h"
#include "gtkitemfactory.h"
#include "gtk/gtkoptionmenu.h"
#include "gtk/gtkmenubar.h"
#include "gtk/gtkmenu.h"
#include "gtk/gtkmenuitem.h"
#include "gtk/gtkradiomenuitem.h"
#include "gtk/gtkcheckmenuitem.h"
#include "gtk/gtkimagemenuitem.h"
#include "gtk/gtktearoffmenuitem.h"
#include "gtk/gtkaccelmap.h"
#include "gtk/gtkaccellabel.h"
#include "gdk/gdkkeysyms.h"
#include "gtk/gtkimage.h"
#include "gtk/gtkstock.h"
#include "gtk/gtkiconfactory.h"
#include <string.h>
#include <fcntl.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdio.h>
/* --- defines --- */
#define ITEM_FACTORY_STRING ((gchar*) item_factory_string)
#define ITEM_BLOCK_SIZE (128)
/* --- structures --- */
typedef struct _GtkIFCBData GtkIFCBData;
typedef struct _GtkIFDumpData GtkIFDumpData;
struct _GtkIFCBData
{
GtkItemFactoryCallback func;
guint callback_type;
gpointer func_data;
guint callback_action;
};
/* --- prototypes --- */
static void gtk_item_factory_class_init (GtkItemFactoryClass *klass);
static void gtk_item_factory_init (GtkItemFactory *ifactory);
static void gtk_item_factory_destroy (GtkObject *object);
static void gtk_item_factory_finalize (GObject *object);
/* --- static variables --- */
static GtkItemFactoryClass *gtk_item_factory_class = NULL;
static gpointer parent_class = NULL;
static const gchar *item_factory_string = "Gtk-<ItemFactory>";
static GMemChunk *ifactory_item_chunks = NULL;
static GMemChunk *ifactory_cb_data_chunks = NULL;
static GQuark quark_popup_data = 0;
static GQuark quark_if_menu_pos = 0;
static GQuark quark_item_factory = 0;
static GQuark quark_item_path = 0;
static GQuark quark_action = 0;
static GQuark quark_accel_group = 0;
static GQuark quark_type_item = 0;
static GQuark quark_type_title = 0;
static GQuark quark_type_radio_item = 0;
static GQuark quark_type_check_item = 0;
static GQuark quark_type_toggle_item = 0;
static GQuark quark_type_image_item = 0;
static GQuark quark_type_stock_item = 0;
static GQuark quark_type_tearoff_item = 0;
static GQuark quark_type_separator_item = 0;
static GQuark quark_type_branch = 0;
static GQuark quark_type_last_branch = 0;
/* --- functions --- */
GType
gtk_item_factory_get_type (void)
{
static GType item_factory_type = 0;
if (!item_factory_type)
{
static const GTypeInfo item_factory_info =
{
sizeof (GtkItemFactoryClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_item_factory_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkItemFactory),
0,
(GInstanceInitFunc) gtk_item_factory_init,
};
item_factory_type =
g_type_register_static (GTK_TYPE_OBJECT, "GtkItemFactory",
&item_factory_info, 0);
}
return item_factory_type;
}
static void
gtk_item_factory_class_init (GtkItemFactoryClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
GtkObjectClass *object_class = GTK_OBJECT_CLASS (class);
gtk_item_factory_class = class;
parent_class = g_type_class_peek_parent (class);
gobject_class->finalize = gtk_item_factory_finalize;
object_class->destroy = gtk_item_factory_destroy;
class->item_ht = g_hash_table_new (g_str_hash, g_str_equal);
ifactory_item_chunks =
g_mem_chunk_new ("GtkItemFactoryItem",
sizeof (GtkItemFactoryItem),
sizeof (GtkItemFactoryItem) * ITEM_BLOCK_SIZE,
G_ALLOC_ONLY);
ifactory_cb_data_chunks =
g_mem_chunk_new ("GtkIFCBData",
sizeof (GtkIFCBData),
sizeof (GtkIFCBData) * ITEM_BLOCK_SIZE,
G_ALLOC_AND_FREE);
quark_popup_data = g_quark_from_static_string ("GtkItemFactory-popup-data");
quark_if_menu_pos = g_quark_from_static_string ("GtkItemFactory-menu-position");
quark_item_factory = g_quark_from_static_string ("GtkItemFactory");
quark_item_path = g_quark_from_static_string ("GtkItemFactory-path");
quark_action = g_quark_from_static_string ("GtkItemFactory-action");
quark_accel_group = g_quark_from_static_string ("GtkAccelGroup");
quark_type_item = g_quark_from_static_string ("<Item>");
quark_type_title = g_quark_from_static_string ("<Title>");
quark_type_radio_item = g_quark_from_static_string ("<RadioItem>");
quark_type_check_item = g_quark_from_static_string ("<CheckItem>");
quark_type_toggle_item = g_quark_from_static_string ("<ToggleItem>");
quark_type_image_item = g_quark_from_static_string ("<ImageItem>");
quark_type_stock_item = g_quark_from_static_string ("<StockItem>");
quark_type_separator_item = g_quark_from_static_string ("<Separator>");
quark_type_tearoff_item = g_quark_from_static_string ("<Tearoff>");
quark_type_branch = g_quark_from_static_string ("<Branch>");
quark_type_last_branch = g_quark_from_static_string ("<LastBranch>");
}
static void
gtk_item_factory_init (GtkItemFactory *ifactory)
{
GtkObject *object;
object = GTK_OBJECT (ifactory);
ifactory->path = NULL;
ifactory->accel_group = NULL;
ifactory->widget = NULL;
ifactory->items = NULL;
ifactory->translate_func = NULL;
ifactory->translate_data = NULL;
ifactory->translate_notify = NULL;
}
/**
* gtk_item_factory_new:
* @container_type: the kind of menu to create; can be
* #GTK_TYPE_MENU_BAR, #GTK_TYPE_MENU or #GTK_TYPE_OPTION_MENU
* @path: the factory path of the new item factory, a string of the form
* <literal>"&lt;name&gt;"</literal>
* @accel_group: a #GtkAccelGroup to which the accelerators for the
* menu items will be added, or %NULL to create a new one
* @returns: a new #GtkItemFactory
*
* Creates a new #GtkItemFactory.
*/
GtkItemFactory*
gtk_item_factory_new (GType container_type,
const gchar *path,
GtkAccelGroup *accel_group)
{
GtkItemFactory *ifactory;
g_return_val_if_fail (path != NULL, NULL);
ifactory = g_object_new (GTK_TYPE_ITEM_FACTORY, NULL);
gtk_item_factory_construct (ifactory, container_type, path, accel_group);
return ifactory;
}
static void
gtk_item_factory_callback_marshal (GtkWidget *widget,
gpointer func_data)
{
GtkIFCBData *data;
data = func_data;
if (data->callback_type == 1)
{
GtkItemFactoryCallback1 func1 = (GtkItemFactoryCallback1) data->func;
func1 (data->func_data, data->callback_action, widget);
}
else if (data->callback_type == 2)
{
GtkItemFactoryCallback2 func2 = (GtkItemFactoryCallback2) data->func;
func2 (widget, data->func_data, data->callback_action);
}
}
static void
gtk_item_factory_item_remove_widget (GtkWidget *widget,
GtkItemFactoryItem *item)
{
item->widgets = g_slist_remove (item->widgets, widget);
g_object_set_qdata (G_OBJECT (widget), quark_item_factory, NULL);
g_object_set_qdata (G_OBJECT (widget), quark_item_path, NULL);
}
/**
* gtk_item_factory_add_foreign:
* @accel_widget: widget to install an accelerator on
* @full_path: the full path for the @accel_widget
* @accel_group: the accelerator group to install the accelerator in
* @keyval: key value of the accelerator
* @modifiers: modifier combination of the accelerator
*
* Installs an accelerator for @accel_widget in @accel_group, that causes
* the ::activate signal to be emitted if the accelerator is activated.
*
* This function can be used to make widgets participate in the accel
* saving/restoring functionality provided by gtk_accel_map_save() and
* gtk_accel_map_load(), even if they haven't been created by an item
* factory. The recommended API for this purpose are the functions
* gtk_menu_item_set_accel_path() and gtk_widget_set_accel_path(); don't
* use gtk_item_factory_add_foreign() in new code, since it is likely to
* be removed in the future.
*/
void
gtk_item_factory_add_foreign (GtkWidget *accel_widget,
const gchar *full_path,
GtkAccelGroup *accel_group,
guint keyval,
GdkModifierType modifiers)
{
GtkItemFactoryClass *class;
GtkItemFactoryItem *item;
g_return_if_fail (GTK_IS_WIDGET (accel_widget));
g_return_if_fail (full_path != NULL);
class = gtk_type_class (GTK_TYPE_ITEM_FACTORY);
keyval = keyval != GDK_VoidSymbol ? keyval : 0;
item = g_hash_table_lookup (class->item_ht, full_path);
if (!item)
{
item = g_chunk_new (GtkItemFactoryItem, ifactory_item_chunks);
item->path = g_strdup (full_path);
item->widgets = NULL;
g_hash_table_insert (class->item_ht, item->path, item);
}
item->widgets = g_slist_prepend (item->widgets, accel_widget);
g_signal_connect (accel_widget,
"destroy",
G_CALLBACK (gtk_item_factory_item_remove_widget),
item);
/* set the item path for the widget
*/
g_object_set_qdata (G_OBJECT (accel_widget), quark_item_path, item->path);
gtk_widget_set_name (accel_widget, item->path);
if (accel_group)
{
g_object_ref (accel_group);
g_object_set_qdata_full (G_OBJECT (accel_widget),
quark_accel_group,
accel_group,
g_object_unref);
}
else
g_object_set_qdata (G_OBJECT (accel_widget), quark_accel_group, NULL);
/* install defined accelerators
*/
if (g_signal_lookup ("activate", G_TYPE_FROM_INSTANCE (accel_widget)))
{
if (accel_group)
{
gtk_accel_map_add_entry (full_path, keyval, modifiers);
gtk_widget_set_accel_path (accel_widget, full_path, accel_group);
}
}
}
static void
ifactory_cb_data_free (gpointer mem)
{
g_mem_chunk_free (ifactory_cb_data_chunks, mem);
}
static void
gtk_item_factory_add_item (GtkItemFactory *ifactory,
const gchar *path,
const gchar *accelerator,
GtkItemFactoryCallback callback,
guint callback_action,
gpointer callback_data,
guint callback_type,
gchar *item_type,
GtkWidget *widget)
{
GtkItemFactoryClass *class;
GtkItemFactoryItem *item;
gchar *fpath;
guint keyval;
GdkModifierType mods;
g_return_if_fail (widget != NULL);
g_return_if_fail (item_type != NULL);
class = GTK_ITEM_FACTORY_GET_CLASS (ifactory);
/* set accelerator group on menu widgets
*/
if (GTK_IS_MENU (widget))
gtk_menu_set_accel_group ((GtkMenu*) widget, ifactory->accel_group);
/* connect callback if neccessary
*/
if (callback)
{
GtkIFCBData *data;
data = g_chunk_new (GtkIFCBData, ifactory_cb_data_chunks);
data->func = callback;
data->callback_type = callback_type;
data->func_data = callback_data;
data->callback_action = callback_action;
g_object_weak_ref (G_OBJECT (widget),
(GWeakNotify) ifactory_cb_data_free,
data);
g_signal_connect (widget,
"activate",
G_CALLBACK (gtk_item_factory_callback_marshal),
data);
}
/* link the widget into its item-entry
* and keep back pointer on both the item factory and the widget
*/
g_object_set_qdata (G_OBJECT (widget), quark_action, GUINT_TO_POINTER (callback_action));
g_object_set_qdata (G_OBJECT (widget), quark_item_factory, ifactory);
if (accelerator)
gtk_accelerator_parse (accelerator, &keyval, &mods);
else
{
keyval = 0;
mods = 0;
}
fpath = g_strconcat (ifactory->path, path, NULL);
gtk_item_factory_add_foreign (widget, fpath, ifactory->accel_group, keyval, mods);
item = g_hash_table_lookup (class->item_ht, fpath);
g_free (fpath);
g_return_if_fail (item != NULL);
if (!g_slist_find (ifactory->items, item))
ifactory->items = g_slist_prepend (ifactory->items, item);
}
/**
* gtk_item_factory_construct:
* @ifactory: a #GtkItemFactory
* @container_type: the kind of menu to create; can be
* #GTK_TYPE_MENU_BAR, #GTK_TYPE_MENU or #GTK_TYPE_OPTION_MENU
* @path: the factory path of @ifactory, a string of the form
* <literal>"&lt;name&gt;"</literal>
* @accel_group: a #GtkAccelGroup to which the accelerators for the
* menu items will be added, or %NULL to create a new one
*
* Initializes an item factory.
*/
void
gtk_item_factory_construct (GtkItemFactory *ifactory,
GType container_type,
const gchar *path,
GtkAccelGroup *accel_group)
{
guint len;
g_return_if_fail (GTK_IS_ITEM_FACTORY (ifactory));
g_return_if_fail (ifactory->accel_group == NULL);
g_return_if_fail (path != NULL);
if (!g_type_is_a (container_type, GTK_TYPE_OPTION_MENU))
g_return_if_fail (g_type_is_a (container_type, GTK_TYPE_MENU_SHELL));
len = strlen (path);
if (path[0] != '<' && path[len - 1] != '>')
{
g_warning ("GtkItemFactory: invalid factory path `%s'", path);
return;
}
if (accel_group)
{
ifactory->accel_group = accel_group;
g_object_ref (ifactory->accel_group);
}
else
ifactory->accel_group = gtk_accel_group_new ();
ifactory->path = g_strdup (path);
ifactory->widget = g_object_connect (gtk_widget_new (container_type, NULL),
"signal::destroy", gtk_widget_destroyed, &ifactory->widget,
NULL);
g_object_ref (ifactory);
gtk_object_sink (GTK_OBJECT (ifactory));
gtk_item_factory_add_item (ifactory,
"", NULL,
NULL, 0, NULL, 0,
ITEM_FACTORY_STRING,
ifactory->widget);
}
/**
* gtk_item_factory_from_path:
* @path: a string starting with a factory path of the form
* <literal>"&lt;name&gt;"</literal>
* @returns: the #GtkItemFactory created for the given factory path, or %NULL
*
* Finds an item factory which has been constructed using the
* <literal>"&lt;name&gt;"</literal> prefix of @path as the @path argument
* for gtk_item_factory_new().
*/
GtkItemFactory*
gtk_item_factory_from_path (const gchar *path)
{
GtkItemFactoryClass *class;
GtkItemFactoryItem *item;
gchar *fname;
guint i;
g_return_val_if_fail (path != NULL, NULL);
g_return_val_if_fail (path[0] == '<', NULL);
class = gtk_type_class (GTK_TYPE_ITEM_FACTORY);
i = 0;
while (path[i] && path[i] != '>')
i++;
if (path[i] != '>')
{
g_warning ("gtk_item_factory_from_path(): invalid factory path \"%s\"",
path);
return NULL;
}
fname = g_new (gchar, i + 2);
g_memmove (fname, path, i + 1);
fname[i + 1] = 0;
item = g_hash_table_lookup (class->item_ht, fname);
g_free (fname);
if (item && item->widgets)
return gtk_item_factory_from_widget (item->widgets->data);
return NULL;
}
static void
gtk_item_factory_destroy (GtkObject *object)
{
GtkItemFactory *ifactory;
GSList *slist;
g_return_if_fail (GTK_IS_ITEM_FACTORY (object));
ifactory = (GtkItemFactory*) object;
if (ifactory->widget)
{
GtkObject *dobj;
dobj = GTK_OBJECT (ifactory->widget);
g_object_ref (dobj);
gtk_object_sink (dobj);
gtk_object_destroy (dobj);
g_object_unref (dobj);
ifactory->widget = NULL;
}
for (slist = ifactory->items; slist; slist = slist->next)
{
GtkItemFactoryItem *item = slist->data;
GSList *link;
for (link = item->widgets; link; link = link->next)
if (g_object_get_qdata (link->data, quark_item_factory) == ifactory)
g_object_set_qdata (link->data, quark_item_factory, NULL);
}
g_slist_free (ifactory->items);
ifactory->items = NULL;
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
static void
gtk_item_factory_finalize (GObject *object)
{
GtkItemFactory *ifactory;
g_return_if_fail (GTK_IS_ITEM_FACTORY (object));
ifactory = GTK_ITEM_FACTORY (object);
g_object_unref (ifactory->accel_group);
g_free (ifactory->path);
g_assert (ifactory->widget == NULL);
if (ifactory->translate_notify)
ifactory->translate_notify (ifactory->translate_data);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/**
* gtk_item_factory_from_widget:
* @widget: a widget
* @returns: the item factory from which @widget was created, or %NULL
*
* Obtains the item factory from which a widget was created.
*/
GtkItemFactory*
gtk_item_factory_from_widget (GtkWidget *widget)
{
GtkItemFactory *ifactory;
g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
ifactory = g_object_get_qdata (G_OBJECT (widget), quark_item_factory);
if (ifactory == NULL && GTK_IS_MENU_ITEM (widget) &&
GTK_MENU_ITEM (widget)->submenu != NULL)
{
GtkWidget *menu = GTK_MENU_ITEM (widget)->submenu;
ifactory = g_object_get_qdata (G_OBJECT (menu), quark_item_factory);
}
return ifactory;
}
/**
* gtk_item_factory_path_from_widget:
* @widget: a widget
* @returns: the full path to @widget if it has been created by an item
* factory, %NULL otherwise. This value is owned by GTK+ and must not be
* modified or freed.
*
* If @widget has been created by an item factory, returns the full path
* to it. (The full path of a widget is the concatenation of the factory
* path specified in gtk_item_factory_new() with the path specified in the
* #GtkItemFactoryEntry from which the widget was created.)
*/
G_CONST_RETURN gchar*
gtk_item_factory_path_from_widget (GtkWidget *widget)
{
gchar* path;
g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
path = g_object_get_qdata (G_OBJECT (widget), quark_item_path);
if (path == NULL && GTK_IS_MENU_ITEM (widget) &&
GTK_MENU_ITEM (widget)->submenu != NULL)
{
GtkWidget *menu = GTK_MENU_ITEM (widget)->submenu;
path = g_object_get_qdata (G_OBJECT (menu), quark_item_path);
}
return path;
}
/**
* gtk_item_factory_create_items:
* @ifactory: a #GtkItemFactory
* @n_entries: the length of @entries
* @entries: an array of #GtkItemFactoryEntry<!-- -->s whose @callback members
* must by of type #GtkItemFactoryCallback1
* @callback_data: data passed to the callback functions of all entries
*
* Creates the menu items from the @entries.
*/
void
gtk_item_factory_create_items (GtkItemFactory *ifactory,
guint n_entries,
GtkItemFactoryEntry *entries,
gpointer callback_data)
{
gtk_item_factory_create_items_ac (ifactory, n_entries, entries, callback_data, 1);
}
/**
* gtk_item_factory_create_items_ac:
* @ifactory: a #GtkItemFactory
* @n_entries: the length of @entries
* @entries: an array of #GtkItemFactoryEntry<!-- -->s
* @callback_data: data passed to the callback functions of all entries
* @callback_type: 1 if the callback functions in @entries are of type
* #GtkItemFactoryCallback1, 2 if they are of type #GtkItemFactoryCallback2
*
* Creates the menu items from the @entries.
*/
void
gtk_item_factory_create_items_ac (GtkItemFactory *ifactory,
guint n_entries,
GtkItemFactoryEntry *entries,
gpointer callback_data,
guint callback_type)
{
guint i;
g_return_if_fail (GTK_IS_ITEM_FACTORY (ifactory));
g_return_if_fail (callback_type >= 1 && callback_type <= 2);
if (n_entries == 0)
return;
g_return_if_fail (entries != NULL);
for (i = 0; i < n_entries; i++)
gtk_item_factory_create_item (ifactory, entries + i, callback_data, callback_type);
}
/**
* gtk_item_factory_get_widget:
* @ifactory: a #GtkItemFactory
* @path: the path to the widget
* @returns: the widget for the given path, or %NULL if @path doesn't lead
* to a widget
*
* Obtains the widget which corresponds to @path.
*
* If the widget corresponding to @path is a menu item which opens a
* submenu, then the submenu is returned. If you are interested in the menu
* item, use gtk_item_factory_get_item() instead.
*/
GtkWidget*
gtk_item_factory_get_widget (GtkItemFactory *ifactory,
const gchar *path)
{
GtkItemFactoryClass *class;
GtkItemFactoryItem *item;
g_return_val_if_fail (GTK_IS_ITEM_FACTORY (ifactory), NULL);
g_return_val_if_fail (path != NULL, NULL);
class = GTK_ITEM_FACTORY_GET_CLASS (ifactory);
if (path[0] == '<')
item = g_hash_table_lookup (class->item_ht, (gpointer) path);
else
{
gchar *fpath;
fpath = g_strconcat (ifactory->path, path, NULL);
item = g_hash_table_lookup (class->item_ht, fpath);
g_free (fpath);
}
if (item)
{
GSList *slist;
for (slist = item->widgets; slist; slist = slist->next)
{
if (gtk_item_factory_from_widget (slist->data) == ifactory)
return slist->data;
}
}
return NULL;
}
/**
* gtk_item_factory_get_widget_by_action:
* @ifactory: a #GtkItemFactory
* @action: an action as specified in the @callback_action field
* of #GtkItemFactoryEntry
* @returns: the widget which corresponds to the given action, or %NULL
* if no widget was found
*
* Obtains the widget which was constructed from the #GtkItemFactoryEntry
* with the given @action.
*
* If there are multiple items with the same action, the result is
* undefined.
*/
GtkWidget*
gtk_item_factory_get_widget_by_action (GtkItemFactory *ifactory,
guint action)
{
GSList *slist;
g_return_val_if_fail (GTK_IS_ITEM_FACTORY (ifactory), NULL);
for (slist = ifactory->items; slist; slist = slist->next)
{
GtkItemFactoryItem *item = slist->data;
GSList *link;
for (link = item->widgets; link; link = link->next)
if (g_object_get_qdata (link->data, quark_item_factory) == ifactory &&
g_object_get_qdata (link->data, quark_action) == GUINT_TO_POINTER (action))
return link->data;
}
return NULL;
}
/**
* gtk_item_factory_get_item:
* @ifactory: a #GtkItemFactory
* @path: the path to the menu item
* @returns: the menu item for the given path, or %NULL if @path doesn't
* lead to a menu item
*
* Obtains the menu item which corresponds to @path.
*
* If the widget corresponding to @path is a menu item which opens a
* submenu, then the item is returned. If you are interested in the submenu,
* use gtk_item_factory_get_widget() instead.
*/
GtkWidget*
gtk_item_factory_get_item (GtkItemFactory *ifactory,
const gchar *path)
{
GtkWidget *widget;
g_return_val_if_fail (GTK_IS_ITEM_FACTORY (ifactory), NULL);
g_return_val_if_fail (path != NULL, NULL);
widget = gtk_item_factory_get_widget (ifactory, path);
if (GTK_IS_MENU (widget))
widget = gtk_menu_get_attach_widget (GTK_MENU (widget));
return GTK_IS_ITEM (widget) ? widget : NULL;
}
/**
* gtk_item_factory_get_item_by_action:
* @ifactory: a #GtkItemFactory
* @action: an action as specified in the @callback_action field
* of #GtkItemFactoryEntry
* @returns: the menu item which corresponds to the given action, or %NULL
* if no menu item was found
*
* Obtains the menu item which was constructed from the first
* #GtkItemFactoryEntry with the given @action.
*/
GtkWidget*
gtk_item_factory_get_item_by_action (GtkItemFactory *ifactory,
guint action)
{
GtkWidget *widget;
g_return_val_if_fail (GTK_IS_ITEM_FACTORY (ifactory), NULL);
widget = gtk_item_factory_get_widget_by_action (ifactory, action);
if (GTK_IS_MENU (widget))
widget = gtk_menu_get_attach_widget (GTK_MENU (widget));
return GTK_IS_ITEM (widget) ? widget : NULL;
}
static char *
item_factory_find_separator_r (char *path)
{
gchar *result = NULL;
gboolean escaped = FALSE;
while (*path)
{
if (escaped)
escaped = FALSE;
else
{
if (*path == '\\')
escaped = TRUE;
else if (*path == '/')
result = path;
}
path++;
}
return result;
}
static char *
item_factory_unescape_label (const char *label)
{
char *new = g_malloc (strlen (label) + 1);
char *p = new;
gboolean escaped = FALSE;
while (*label)
{
if (escaped)
{
*p++ = *label;
escaped = FALSE;
}
else
{
if (*label == '\\')
escaped = TRUE;
else
*p++ = *label;
}
label++;
}
*p = '\0';
return new;
}
static gboolean
gtk_item_factory_parse_path (GtkItemFactory *ifactory,
gchar *str,
gchar **path,
gchar **parent_path,
gchar **item)
{
gchar *translation;
gchar *p, *q;
*path = g_strdup (str);
p = q = *path;
while (*p)
{
if (*p == '_')
{
if (p[1] == '_')
{
p++;
*q++ = '_';
}
}
else
{
*q++ = *p;
}
p++;
}
*q = 0;
*parent_path = g_strdup (*path);
p = item_factory_find_separator_r (*parent_path);
if (!p)
{
g_warning ("GtkItemFactory: invalid entry path `%s'", str);
return FALSE;
}
*p = 0;
if (ifactory->translate_func)
translation = ifactory->translate_func (str, ifactory->translate_data);
else
translation = str;
p = item_factory_find_separator_r (translation);
if (p)
p++;
else
p = translation;
*item = item_factory_unescape_label (p);
return TRUE;
}
/**
* gtk_item_factory_create_item:
* @ifactory: a #GtkItemFactory
* @entry: the #GtkItemFactoryEntry to create an item for
* @callback_data: data passed to the callback function of @entry
* @callback_type: 1 if the callback function of @entry is of type
* #GtkItemFactoryCallback1, 2 if it is of type #GtkItemFactoryCallback2
*
* Creates an item for @entry.
*/
void
gtk_item_factory_create_item (GtkItemFactory *ifactory,
GtkItemFactoryEntry *entry,
gpointer callback_data,
guint callback_type)
{
GtkOptionMenu *option_menu = NULL;
GtkWidget *parent;
GtkWidget *widget;
GtkWidget *image;
GSList *radio_group;
gchar *name;
gchar *parent_path;
gchar *path;
gchar *accelerator;
guint type_id;
GType type;
gchar *item_type_path;
GtkStockItem stock_item;
g_return_if_fail (GTK_IS_ITEM_FACTORY (ifactory));
g_return_if_fail (entry != NULL);
g_return_if_fail (entry->path != NULL);
g_return_if_fail (entry->path[0] == '/');
g_return_if_fail (callback_type >= 1 && callback_type <= 2);
if (!entry->item_type ||
entry->item_type[0] == 0)
{
item_type_path = "<Item>";
type_id = quark_type_item;
}
else
{
item_type_path = entry->item_type;
type_id = g_quark_try_string (item_type_path);
}
radio_group = NULL;
if (type_id == quark_type_item)
type = GTK_TYPE_MENU_ITEM;
else if (type_id == quark_type_title)
type = GTK_TYPE_MENU_ITEM;
else if (type_id == quark_type_radio_item)
type = GTK_TYPE_RADIO_MENU_ITEM;
else if (type_id == quark_type_check_item)
type = GTK_TYPE_CHECK_MENU_ITEM;
else if (type_id == quark_type_image_item)
type = GTK_TYPE_IMAGE_MENU_ITEM;
else if (type_id == quark_type_stock_item)
type = GTK_TYPE_IMAGE_MENU_ITEM;
else if (type_id == quark_type_tearoff_item)
type = GTK_TYPE_TEAROFF_MENU_ITEM;
else if (type_id == quark_type_toggle_item)
type = GTK_TYPE_CHECK_MENU_ITEM;
else if (type_id == quark_type_separator_item)
type = GTK_TYPE_MENU_ITEM;
else if (type_id == quark_type_branch)
type = GTK_TYPE_MENU_ITEM;
else if (type_id == quark_type_last_branch)
type = GTK_TYPE_MENU_ITEM;
else
{
GtkWidget *radio_link;
radio_link = gtk_item_factory_get_widget (ifactory, item_type_path);
if (radio_link && GTK_IS_RADIO_MENU_ITEM (radio_link))
{
type = GTK_TYPE_RADIO_MENU_ITEM;
radio_group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (radio_link));
}
else
{
g_warning ("GtkItemFactory: entry path `%s' has invalid type `%s'",
entry->path,
item_type_path);
return;
}
}
if (!gtk_item_factory_parse_path (ifactory, entry->path,
&path, &parent_path, &name))
return;
parent = gtk_item_factory_get_widget (ifactory, parent_path);
if (!parent)
{
GtkItemFactoryEntry pentry;
gchar *ppath, *p;
ppath = g_strdup (entry->path);
p = item_factory_find_separator_r (ppath);
g_return_if_fail (p != NULL);
*p = 0;
pentry.path = ppath;
pentry.accelerator = NULL;
pentry.callback = NULL;
pentry.callback_action = 0;
pentry.item_type = "<Branch>";
gtk_item_factory_create_item (ifactory, &pentry, NULL, 1);
g_free (ppath);
parent = gtk_item_factory_get_widget (ifactory, parent_path);
g_return_if_fail (parent != NULL);
}
if (GTK_IS_OPTION_MENU (parent))
{
option_menu = GTK_OPTION_MENU (parent);
if (!option_menu->menu)
{
GtkWidget *menu = g_object_new (GTK_TYPE_MENU, NULL);
gchar *p = g_strconcat (ifactory->path, parent_path, NULL);
gtk_menu_set_accel_path (GTK_MENU (menu), p);
g_free (p);
gtk_option_menu_set_menu (option_menu, menu);
}
parent = option_menu->menu;
}
g_free (parent_path);
g_return_if_fail (GTK_IS_CONTAINER (parent));
accelerator = entry->accelerator;
widget = gtk_widget_new (type,
"visible", TRUE,
"sensitive", (type_id != quark_type_separator_item &&
type_id != quark_type_title),
"parent", parent,
NULL);
if (option_menu && !option_menu->menu_item)
gtk_option_menu_set_history (option_menu, 0);
if (GTK_IS_RADIO_MENU_ITEM (widget))
gtk_radio_menu_item_set_group (GTK_RADIO_MENU_ITEM (widget), radio_group);
if (GTK_IS_CHECK_MENU_ITEM (widget))
gtk_check_menu_item_set_show_toggle (GTK_CHECK_MENU_ITEM (widget), TRUE);
if (type_id == quark_type_image_item)
{
GError *error = NULL;
GdkPixbuf *pixbuf = NULL;
image = NULL;
pixbuf = gdk_pixbuf_new_from_inline (-1,
entry->extra_data,
FALSE,
&error);
if (pixbuf)
image = gtk_image_new_from_pixbuf (pixbuf);
else
{
g_warning ("Error loading menu image: %s", error->message);
g_error_free (error);
}
if (image)
{
gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (widget), image);
gtk_widget_show (image);
}
if (pixbuf)
g_object_unref (pixbuf);
}
if (type_id == quark_type_stock_item)
{
image = gtk_image_new_from_stock (entry->extra_data, GTK_ICON_SIZE_MENU);
gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (widget), image);
gtk_widget_show (image);
if (gtk_stock_lookup (entry->extra_data, &stock_item))
{
if (!accelerator)
accelerator = gtk_accelerator_name (stock_item.keyval, stock_item.modifier);
}
}
/* install underline accelerators for this item
*/
if (type_id != quark_type_separator_item &&
type_id != quark_type_tearoff_item &&
*name)
{
GtkWidget *label;
label = gtk_widget_new (GTK_TYPE_ACCEL_LABEL,
"visible", TRUE,
"parent", widget,
"accel_widget", widget,
"xalign", 0.0,
NULL);
gtk_label_set_text_with_mnemonic (GTK_LABEL (label), name);
}
g_free (name);
if (type_id == quark_type_branch ||
type_id == quark_type_last_branch)
{
gchar *p;
if (entry->callback)
g_warning ("gtk_item_factory_create_item(): Can't specify a callback on a branch: \"%s\"",
entry->path);
if (type_id == quark_type_last_branch)
gtk_menu_item_set_right_justified (GTK_MENU_ITEM (widget), TRUE);
parent = widget;
widget = gtk_widget_new (GTK_TYPE_MENU, NULL);
p = g_strconcat (ifactory->path, path, NULL);
gtk_menu_set_accel_path (GTK_MENU (widget), p);
g_free (p);
gtk_menu_item_set_submenu (GTK_MENU_ITEM (parent), widget);
}
gtk_item_factory_add_item (ifactory,
path, accelerator,
(type_id == quark_type_branch ||
type_id == quark_type_last_branch) ?
(GtkItemFactoryCallback) NULL : entry->callback,
entry->callback_action, callback_data,
callback_type,
item_type_path,
widget);
if (accelerator != entry->accelerator)
g_free (accelerator);
g_free (path);
}
/**
* gtk_item_factory_create_menu_entries:
* @n_entries: the length of @entries
* @entries: an array of #GtkMenuEntry<!-- -->s
*
* Creates the menu items from the @entries.
*/
void
gtk_item_factory_create_menu_entries (guint n_entries,
GtkMenuEntry *entries)
{
static GPatternSpec *pspec_separator = NULL;
static GPatternSpec *pspec_check = NULL;
guint i;
if (!n_entries)
return;
g_return_if_fail (entries != NULL);
if (!pspec_separator)
{
pspec_separator = g_pattern_spec_new ("*<separator>*");
pspec_check = g_pattern_spec_new ("*<check>*");
}
for (i = 0; i < n_entries; i++)
{
GtkItemFactory *ifactory;
GtkItemFactoryEntry entry;
gchar *path;
gchar *cpath;
path = entries[i].path;
ifactory = gtk_item_factory_from_path (path);
if (!ifactory)
{
g_warning ("gtk_item_factory_create_menu_entries(): "
"entry[%u] refers to unknown item factory: \"%s\"",
i, entries[i].path);
continue;
}
while (*path != '>')
path++;
path++;
cpath = NULL;
entry.path = path;
entry.accelerator = entries[i].accelerator;
entry.callback = entries[i].callback;
entry.callback_action = 0;
if (g_pattern_match_string (pspec_separator, path))
entry.item_type = "<Separator>";
else if (!g_pattern_match_string (pspec_check, path))
entry.item_type = NULL;
else
{
gboolean in_brace = FALSE;
gchar *c;
cpath = g_new (gchar, strlen (path));
c = cpath;
while (*path != 0)
{
if (*path == '<')
in_brace = TRUE;
else if (*path == '>')
in_brace = FALSE;
else if (!in_brace)
*(c++) = *path;
path++;
}
*c = 0;
entry.item_type = "<ToggleItem>";
entry.path = cpath;
}
gtk_item_factory_create_item (ifactory, &entry, entries[i].callback_data, 2);
entries[i].widget = gtk_item_factory_get_widget (ifactory, entries[i].path);
g_free (cpath);
}
}
/**
* gtk_item_factories_path_delete:
* @ifactory_path: a factory path to prepend to @path. May be %NULL if @path
* starts with a factory path
* @path: a path
*
* Deletes all widgets constructed from the specified path.
*/
void
gtk_item_factories_path_delete (const gchar *ifactory_path,
const gchar *path)
{
GtkItemFactoryClass *class;
GtkItemFactoryItem *item;
g_return_if_fail (path != NULL);
class = gtk_type_class (GTK_TYPE_ITEM_FACTORY);
if (path[0] == '<')
item = g_hash_table_lookup (class->item_ht, (gpointer) path);
else
{
gchar *fpath;
g_return_if_fail (ifactory_path != NULL);
fpath = g_strconcat (ifactory_path, path, NULL);
item = g_hash_table_lookup (class->item_ht, fpath);
g_free (fpath);
}
if (item)
{
GSList *widget_list;
GSList *slist;
widget_list = NULL;
for (slist = item->widgets; slist; slist = slist->next)
{
GtkWidget *widget;
widget = slist->data;
widget_list = g_slist_prepend (widget_list, widget);
g_object_ref (widget);
}
for (slist = widget_list; slist; slist = slist->next)
{
GtkWidget *widget;
widget = slist->data;
gtk_widget_destroy (widget);
g_object_unref (widget);
}
g_slist_free (widget_list);
}
}
/**
* gtk_item_factory_delete_item:
* @ifactory: a #GtkItemFactory
* @path: a path
*
* Deletes the menu item which was created for @path by the given
* item factory.
*/
void
gtk_item_factory_delete_item (GtkItemFactory *ifactory,
const gchar *path)
{
GtkItemFactoryClass *class;
GtkWidget *widget;
g_return_if_fail (GTK_IS_ITEM_FACTORY (ifactory));
g_return_if_fail (path != NULL);
class = GTK_ITEM_FACTORY_GET_CLASS (ifactory);
widget = gtk_item_factory_get_widget (ifactory, path);
if (widget)
{
if (GTK_IS_MENU (widget))
widget = gtk_menu_get_attach_widget (GTK_MENU (widget));
gtk_widget_destroy (widget);
}
}
/**
* gtk_item_factory_delete_entry:
* @ifactory: a #GtkItemFactory
* @entry: a #GtkItemFactoryEntry
*
* Deletes the menu item which was created from @entry by the given
* item factory.
*/
void
gtk_item_factory_delete_entry (GtkItemFactory *ifactory,
GtkItemFactoryEntry *entry)
{
gchar *path;
gchar *parent_path;
gchar *name;
g_return_if_fail (GTK_IS_ITEM_FACTORY (ifactory));
g_return_if_fail (entry != NULL);
g_return_if_fail (entry->path != NULL);
g_return_if_fail (entry->path[0] == '/');
if (!gtk_item_factory_parse_path (ifactory, entry->path,
&path, &parent_path, &name))
return;
gtk_item_factory_delete_item (ifactory, path);
g_free (path);
g_free (parent_path);
g_free (name);
}
/**
* gtk_item_factory_delete_entries:
* @ifactory: a #GtkItemFactory
* @n_entries: the length of @entries
* @entries: an array of #GtkItemFactoryEntry<!-- -->s
*
* Deletes the menu items which were created from the @entries by the given
* item factory.
*/
void
gtk_item_factory_delete_entries (GtkItemFactory *ifactory,
guint n_entries,
GtkItemFactoryEntry *entries)
{
guint i;
g_return_if_fail (GTK_IS_ITEM_FACTORY (ifactory));
if (n_entries > 0)
g_return_if_fail (entries != NULL);
for (i = 0; i < n_entries; i++)
gtk_item_factory_delete_entry (ifactory, entries + i);
}
typedef struct
{
guint x;
guint y;
} MenuPos;
static void
gtk_item_factory_menu_pos (GtkMenu *menu,
gint *x,
gint *y,
gboolean *push_in,
gpointer func_data)
{
MenuPos *mpos = func_data;
*x = mpos->x;
*y = mpos->y;
}
/**
* gtk_item_factory_popup_data_from_widget:
* @widget: a widget
* @returns: @popup_data associated with the item factory from
* which @widget was created, or %NULL if @widget wasn't created
* by an item factory
*
* Obtains the @popup_data which was passed to
* gtk_item_factory_popup_with_data(). This data is available until the menu
* is popped down again.
*/
gpointer
gtk_item_factory_popup_data_from_widget (GtkWidget *widget)
{
GtkItemFactory *ifactory;
g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
ifactory = gtk_item_factory_from_widget (widget);
if (ifactory)
return g_object_get_qdata (G_OBJECT (ifactory), quark_popup_data);
return NULL;
}
/**
* gtk_item_factory_popup_data:
* @ifactory: a #GtkItemFactory
* @returns: @popup_data associated with @ifactory
*
* Obtains the @popup_data which was passed to
* gtk_item_factory_popup_with_data(). This data is available until the menu
* is popped down again.
*/
gpointer
gtk_item_factory_popup_data (GtkItemFactory *ifactory)
{
g_return_val_if_fail (GTK_IS_ITEM_FACTORY (ifactory), NULL);
return g_object_get_qdata (G_OBJECT (ifactory), quark_popup_data);
}
static void
ifactory_delete_popup_data (GtkObject *object,
GtkItemFactory *ifactory)
{
g_signal_handlers_disconnect_by_func (object,
ifactory_delete_popup_data,
ifactory);
g_object_set_qdata (G_OBJECT (ifactory), quark_popup_data, NULL);
}
/**
* gtk_item_factory_popup:
* @ifactory: a #GtkItemFactory of type #GTK_TYPE_MENU (see gtk_item_factory_new())
* @x: the x position
* @y: the y position
* @mouse_button: the mouse button which was pressed to initiate the popup
* @time: the time at which the activation event occurred
*
* Pops up the menu constructed from the item factory at (@x, @y).
*
* The @mouse_button parameter should be the mouse button pressed to initiate
* the menu popup. If the menu popup was initiated by something other than
* a mouse button press, such as a mouse button release or a keypress,
* @mouse_button should be 0.
*
* The @time parameter should be the time stamp of the event that
* initiated the popup. If such an event is not available, use
* gtk_get_current_event_time() instead.
*
* The operation of the @mouse_button and the @time parameter is the same
* as the @button and @activation_time parameters for gtk_menu_popup().
*/
void
gtk_item_factory_popup (GtkItemFactory *ifactory,
guint x,
guint y,
guint mouse_button,
guint32 time)
{
gtk_item_factory_popup_with_data (ifactory, NULL, NULL, x, y, mouse_button, time);
}
/**
* gtk_item_factory_popup_with_data:
* @ifactory: a #GtkItemFactory of type #GTK_TYPE_MENU (see gtk_item_factory_new())
* @popup_data: data available for callbacks while the menu is posted
* @destroy: a #GtkDestroyNotify function to be called on @popup_data when
* the menu is unposted
* @x: the x position
* @y: the y position
* @mouse_button: the mouse button which was pressed to initiate the popup
* @time: the time at which the activation event occurred
*
* Pops up the menu constructed from the item factory at (@x, @y). Callbacks
* can access the @popup_data while the menu is posted via
* gtk_item_factory_popup_data() and gtk_item_factory_popup_data_from_widget().
*
* The @mouse_button parameter should be the mouse button pressed to initiate
* the menu popup. If the menu popup was initiated by something other than
* a mouse button press, such as a mouse button release or a keypress,
* @mouse_button should be 0.
*
* The @time parameter should be the time stamp of the event that
* initiated the popup. If such an event is not available, use
* gtk_get_current_event_time() instead.
*
* The operation of the @mouse_button and the @time parameters is the same
* as the @button and @activation_time parameters for gtk_menu_popup().
*/
void
gtk_item_factory_popup_with_data (GtkItemFactory *ifactory,
gpointer popup_data,
GtkDestroyNotify destroy,
guint x,
guint y,
guint mouse_button,
guint32 time)
{
MenuPos *mpos;
g_return_if_fail (GTK_IS_ITEM_FACTORY (ifactory));
g_return_if_fail (GTK_IS_MENU (ifactory->widget));
mpos = g_object_get_qdata (G_OBJECT (ifactory->widget), quark_if_menu_pos);
if (!mpos)
{
mpos = g_new0 (MenuPos, 1);
g_object_set_qdata_full (G_OBJECT (ifactory->widget),
quark_if_menu_pos,
mpos,
g_free);
}
mpos->x = x;
mpos->y = y;
if (popup_data != NULL)
{
g_object_set_qdata_full (G_OBJECT (ifactory),
quark_popup_data,
popup_data,
destroy);
g_signal_connect (ifactory->widget,
"selection-done",
G_CALLBACK (ifactory_delete_popup_data),
ifactory);
}
gtk_menu_popup (GTK_MENU (ifactory->widget),
NULL, NULL,
gtk_item_factory_menu_pos, mpos,
mouse_button, time);
}
/**
* gtk_item_factory_set_translate_func:
* @ifactory: a #GtkItemFactory
* @func: the #GtkTranslateFunc function to be used to translate path elements
* @data: data to pass to @func and @notify
* @notify: a #GtkDestroyNotify function to be called when @ifactory is
* destroyed and when the translation function is changed again
*
* Sets a function to be used for translating the path elements before they
* are displayed.
*/
void
gtk_item_factory_set_translate_func (GtkItemFactory *ifactory,
GtkTranslateFunc func,
gpointer data,
GtkDestroyNotify notify)
{
g_return_if_fail (ifactory != NULL);
if (ifactory->translate_notify)
ifactory->translate_notify (ifactory->translate_data);
ifactory->translate_func = func;
ifactory->translate_data = data;
ifactory->translate_notify = notify;
}
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