RetroArch/menu/cbs/menu_cbs_up.c
2016-07-02 06:59:49 +02:00

53 lines
1.6 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2011-2016 - 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_driver.h"
#include "../menu_cbs.h"
#include "../menu_navigation.h"
#ifndef BIND_ACTION_UP
#define BIND_ACTION_UP(cbs, name) \
cbs->action_up = name; \
cbs->action_up_ident = #name;
#endif
static int action_bind_up_generic(unsigned type, const char *label)
{
size_t scroll_accel = 0;
unsigned scroll_speed = 0;
if (!menu_navigation_ctl(MENU_NAVIGATION_CTL_GET_SCROLL_ACCEL, &scroll_accel))
return -1;
scroll_speed = (MAX(scroll_accel, 2) - 2) / 4 + 1;
if (menu_entries_get_size() <= 0)
return 0;
menu_navigation_ctl(MENU_NAVIGATION_CTL_DECREMENT, &scroll_speed);
return 0;
}
int menu_cbs_init_bind_up(menu_file_list_cbs_t *cbs,
const char *path, const char *label, unsigned type, size_t idx)
{
if (!cbs)
return -1;
BIND_ACTION_UP(cbs, action_bind_up_generic);
return -1;
}