RetroArch/menu/menu_entries_cbs_down.c

46 lines
1.4 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2011-2015 - Daniel De Matteis
*
* RetroArch 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 Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch 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.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "menu.h"
#include "menu_navigation.h"
#include "menu_entries_cbs.h"
static int action_bind_down_generic(unsigned type, const char *label)
{
unsigned scroll_speed = 0;
menu_handle_t *menu = menu_driver_get_ptr();
if (!menu)
return -1;
scroll_speed = (max(menu->navigation.scroll.acceleration, 2) - 2) / 4 + 1;
if (menu_list_get_size(menu->menu_list) <= 0)
return 0;
menu_navigation_increment(&menu->navigation, scroll_speed);
return 0;
}
void menu_entries_cbs_init_bind_down(menu_file_list_cbs_t *cbs,
const char *path, const char *label, unsigned type, size_t idx,
const char *elem0, const char *elem1)
{
if (!cbs)
return;
cbs->action_down = action_bind_down_generic;
}