RetroArch/menu/menu_navigation.h

71 lines
1.9 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* 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/>.
*/
#ifndef _MENU_NAVIGATION_H
#define _MENU_NAVIGATION_H
#include <stddef.h>
#ifdef _WIN32
#include <direct.h>
#else
#include <unistd.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
typedef struct menu_navigation
{
struct
{
/* Quick jumping indices with L/R.
* Rebuilt when parsing directory. */
struct
{
size_t list[2 * (26 + 2) + 1];
unsigned size;
} indices;
unsigned acceleration;
} scroll;
size_t selection_ptr;
} menu_navigation_t;
enum menu_navigation_ctl_state
{
MENU_NAVIGATION_CTL_CLEAR = 0,
MENU_NAVIGATION_CTL_INCREMENT,
MENU_NAVIGATION_CTL_DECREMENT,
MENU_NAVIGATION_CTL_SET,
MENU_NAVIGATION_CTL_SET_LAST,
MENU_NAVIGATION_CTL_DESCEND_ALPHABET,
MENU_NAVIGATION_CTL_ASCEND_ALPHABET,
MENU_NAVIGATION_CTL_SET_SELECTION,
MENU_NAVIGATION_CTL_GET_SELECTION,
MENU_NAVIGATION_CTL_CLEAR_SCROLL_INDICES,
MENU_NAVIGATION_CTL_ADD_SCROLL_INDEX,
MENU_NAVIGATION_CTL_SET_SCROLL_ACCEL,
MENU_NAVIGATION_CTL_GET_SCROLL_ACCEL
};
bool menu_navigation_ctl(enum menu_navigation_ctl_state state, void *data);
#ifdef __cplusplus
}
#endif
#endif