/**

 * $Id$

 *

 * Creates and manages the GD-Rom attachment menu.

 *

 * Copyright (c) 2005 Nathan Keynes.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program 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 General Public License for more details.

 */

#include <assert.h>

#include <libgen.h>

#include "dream.h"

#include "dreamcast.h"

#include "config.h"

#include "gdlist.h"

#include "gdrom/gdrom.h"

#include "gtkui/gtkui.h"

static gboolean gdrom_menu_adjusting = FALSE;

gboolean gtk_gui_gdrom_mount_image( const char *filename )

{

    ERROR err;

    gboolean ok = gdrom_mount_image( filename, &err );

    if( !ok ) {

        ERROR( err.msg );

    }

    return ok;

}

static void gdrom_menu_open_image_callback( GtkWidget *widget, gpointer user_data )

{

    if( !gdrom_menu_adjusting ) {

        open_file_dialog_cb( _("Open..."), gtk_gui_gdrom_mount_image, NULL, NULL, CONFIG_DEFAULT_PATH );

    }

}

void gdrom_menu_item_callback( GtkWidget *widget, gpointer user_data )

{

    if( !gdrom_menu_adjusting ) {

        ERROR err;

        gboolean ok = gdrom_list_set_selection( GPOINTER_TO_INT(user_data), &err );

        if( !ok ) {

            ERROR( err.msg );

        }

    }

}

void gdrom_menu_build( GtkWidget *menu ) 

{

    unsigned int i, len;

    GSList *group = NULL;

    len = gdrom_list_size();

    for( i=0; i < len; i++ ) {

        const gchar *entry = gdrom_list_get_display_name(i);

        if( entry[0] == '\0' ) { // Empty string = separator

            gtk_menu_shell_append( GTK_MENU_SHELL(menu), gtk_separator_menu_item_new() );

        } else {

            GtkWidget *item = gtk_radio_menu_item_new_with_label( group, entry );

            group = gtk_radio_menu_item_get_group( GTK_RADIO_MENU_ITEM(item) );

            g_signal_connect_after( item, "activate", G_CALLBACK(gdrom_menu_item_callback), GINT_TO_POINTER(i) );

            gtk_menu_shell_append( GTK_MENU_SHELL(menu), item );

        }

    }

    gtk_menu_shell_append( GTK_MENU_SHELL(menu), gtk_separator_menu_item_new() );

    GtkWidget *open = gtk_image_menu_item_new_with_label( _("Open image file...") );

    g_signal_connect_after( open, "activate", G_CALLBACK(gdrom_menu_open_image_callback), NULL );

    gtk_menu_shell_append( GTK_MENU_SHELL(menu), open );

    gtk_widget_show_all(menu);

}

void gdrom_menu_rebuild( GtkWidget *menu )

{

    GList *children = gtk_container_get_children( GTK_CONTAINER(menu) );

    GList *listptr;

    for( listptr = children; listptr != NULL; listptr = g_list_next(listptr) ) {

        gtk_widget_destroy( GTK_WIDGET(listptr->data) );

    }

    g_list_free(children);

    gdrom_menu_build(menu);

}

gboolean gdrom_menu_update( gboolean list_changed, int selection, void *user_data )

{

    gdrom_menu_adjusting = TRUE;

    GtkWidget *menu = GTK_WIDGET(user_data);

    if( list_changed ) {

        gdrom_menu_rebuild(menu);

    }

    GList *children = gtk_container_get_children( GTK_CONTAINER(menu) );

    GList *item = g_list_nth( children, selection );

    assert( item != NULL );

    gtk_check_menu_item_set_active( GTK_CHECK_MENU_ITEM(item->data), TRUE );

    g_list_free(children);

    gdrom_menu_adjusting = FALSE;

    return TRUE;

}

GtkWidget *gdrom_menu_new()

{

    GtkWidget *menu = gtk_menu_new();

    gtk_menu_set_title( GTK_MENU(menu), _("GD-Rom Settings") );

    gdrom_menu_build(menu);

    register_gdrom_list_change_hook(gdrom_menu_update, menu);

    gdrom_menu_update( FALSE, gdrom_list_get_selection(), menu );

    gtk_widget_show_all(menu);

    return menu;

}