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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * e-popup-menu.c
 * Copyright 2000, 2001, Ximian, Inc.
 *
 * Authors:
 *   Miguel de Icaza <miguel@ximian.com>
 *   Jody Goldberg (jgoldberg@home.com)
 *   Jeffrey Stedfast <fejj@ximian.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License, version 2, as published by the Free Software Foundation.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 */

#include <config.h>

#include <libintl.h>
#include <string.h>

#include <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>

#include "e-gui-utils.h"
#include "e-popup-menu.h"

/*
 * Creates an item with an optional icon
 */
static void
make_item (GtkMenu *menu, GtkMenuItem *item, const char *name, GtkWidget *pixmap)
{
    GtkWidget *label;

    if (*name == '\0')
        return;

    /*
     * Ugh.  This needs to go into Gtk+
     */
    label = gtk_label_new_with_mnemonic (name);
    gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
    gtk_widget_show (label);
    
    gtk_container_add (GTK_CONTAINER (item), label);
    
    if (pixmap && GTK_IS_IMAGE_MENU_ITEM (item)){
        gtk_widget_show (pixmap);
        gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), pixmap);
    }
}

GtkMenu *
e_popup_menu_create (EPopupMenu *menu_list,
             guint32 disable_mask,
             guint32 hide_mask,
             void *default_closure)
{
    return e_popup_menu_create_with_domain (menu_list,
                        disable_mask,
                        hide_mask,
                        default_closure,
                        NULL);
}


GtkMenu *
e_popup_menu_create_with_domain (EPopupMenu *menu_list,
                 guint32 disable_mask,
                 guint32 hide_mask,
                 void *default_closure,
                 const char *domain)
{
    GtkMenu *menu = GTK_MENU (gtk_menu_new ());
    GSList *group = NULL;
    gboolean last_item_separator = TRUE;
    int last_non_separator = -1;
    int i;

    for (i = 0; menu_list[i].name; i++) {
        if (strcmp ("", menu_list[i].name) && !(menu_list [i].disable_mask & hide_mask)) {
            last_non_separator = i;
        }
    }

    for (i = 0; i <= last_non_separator; i++) {
        gboolean separator;

        separator = !strcmp ("", menu_list[i].name);

        if ((!(separator && last_item_separator)) && !(menu_list [i].disable_mask & hide_mask)) {
            GtkWidget *item = NULL;

            if (!separator) {
                if (menu_list[i].is_toggle)
                    item = gtk_check_menu_item_new ();
                else if (menu_list[i].is_radio)
                    item = gtk_radio_menu_item_new (group);
                else
                    item = menu_list[i].pixmap_widget ? gtk_image_menu_item_new () : gtk_menu_item_new ();
                if (menu_list[i].is_toggle || menu_list[i].is_radio)
                    gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (item), menu_list[i].is_active);
                if (menu_list[i].is_radio)
                    group = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (item));

                make_item (menu, GTK_MENU_ITEM (item), dgettext(domain, menu_list[i].name), menu_list[i].pixmap_widget);
            } else {
                item = gtk_menu_item_new ();
            }

            gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

            if (!menu_list[i].submenu) {
                if (menu_list[i].fn)
                    g_signal_connect (item, "activate",
                              G_CALLBACK (menu_list[i].fn),
                              menu_list[i].use_custom_closure ? menu_list[i].closure : default_closure);
            } else {
                /* submenu */
                GtkMenu *submenu;

                submenu = e_popup_menu_create (menu_list[i].submenu, disable_mask, hide_mask,
                                   default_closure);

                gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), GTK_WIDGET (submenu));
            }

            if (menu_list[i].disable_mask & disable_mask)
                gtk_widget_set_sensitive (item, FALSE);

            gtk_widget_show (item);

            last_item_separator = separator;
        }
    }

    return menu;
}

void
e_popup_menu_run (EPopupMenu *menu_list, GdkEvent *event, guint32 disable_mask, guint32 hide_mask, void *default_closure)
{
    GtkMenu *menu;
    
    g_return_if_fail (menu_list != NULL);
    g_return_if_fail (event != NULL);
    
    menu = e_popup_menu_create (menu_list, disable_mask, hide_mask, default_closure);
    
    e_popup_menu (menu, event);
}

void
e_popup_menu_copy_1 (EPopupMenu *destination,
             const EPopupMenu *source)
{
    destination->name = g_strdup (source->name);
    destination->pixname = g_strdup (source->pixname);
    destination->fn = source->fn;
    destination->submenu = e_popup_menu_copy (source->submenu);
    destination->disable_mask = source->disable_mask;

    destination->pixmap_widget = source->pixmap_widget;
    if (destination->pixmap_widget)
        g_object_ref (destination->pixmap_widget);
    destination->closure = source->closure;

    destination->is_toggle = source->is_toggle;
    destination->is_radio = source->is_radio;
    destination->is_active = source->is_active;

    destination->use_custom_closure = source->use_custom_closure;
}

void
e_popup_menu_free_1 (EPopupMenu *menu_item)
{
    g_free (menu_item->name);
    g_free (menu_item->pixname);
    e_popup_menu_free (menu_item->submenu);

    if (menu_item->pixmap_widget)
        g_object_unref (menu_item->pixmap_widget);
}

EPopupMenu *
e_popup_menu_copy (const EPopupMenu *menu_list)
{
    int i;
    EPopupMenu *ret_val;

    if (menu_list == NULL)
        return NULL;

    for (i = 0; menu_list[i].name; i++) {
        /* Intentionally empty */
    }

    ret_val = g_new (EPopupMenu, i + 1);

    for (i = 0; menu_list[i].name; i++) {
        e_popup_menu_copy_1 (ret_val + i, menu_list + i);
    }

    /* Copy the terminator */
    e_popup_menu_copy_1 (ret_val + i, menu_list + i);

    return ret_val;
}

void
e_popup_menu_free (EPopupMenu *menu_list)
{
    int i;

    if (menu_list == NULL)
        return;

    for (i = 0; menu_list[i].name; i++) {
        e_popup_menu_free_1 (menu_list + i);
    }
    g_free (menu_list);
}