RetroArch/menu/menu_animation.h

124 lines
3.0 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2014-2015 - Jean-André Santoni
* 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_ANIMATION_H
#define _MENU_ANIMATION_H
#include <stdint.h>
#include <stdlib.h>
#include <boolean.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef float (*easingFunc)(float, float, float, float);
typedef void (*tween_cb) (void);
struct tween
{
int alive;
float duration;
float running_since;
float initial_value;
float target_value;
float* subject;
easingFunc easing;
tween_cb cb;
};
typedef struct animation
{
struct tween *list;
size_t capacity;
size_t size;
} animation_t;
enum animation_easing_type
{
/* Linear */
EASING_LINEAR = 0,
/* Quad */
EASING_IN_QUAD,
EASING_OUT_QUAD,
EASING_IN_OUT_QUAD,
EASING_OUT_IN_QUAD,
/* Cubic */
EASING_IN_CUBIC,
EASING_OUT_CUBIC,
EASING_IN_OUT_CUBIC,
EASING_OUT_IN_CUBIC,
/* Quart */
EASING_IN_QUART,
EASING_OUT_QUART,
EASING_IN_OUT_QUART,
EASING_OUT_IN_QUART,
/* Quint */
EASING_IN_QUINT,
EASING_OUT_QUINT,
EASING_IN_OUT_QUINT,
EASING_OUT_IN_QUINT,
/* Sine */
EASING_IN_SINE,
EASING_OUT_SINE,
EASING_IN_OUT_SINE,
EASING_OUT_IN_SINE,
/* Expo */
EASING_IN_EXPO,
EASING_OUT_EXPO,
EASING_IN_OUT_EXPO,
EASING_OUT_IN_EXPO,
/* Circ */
EASING_IN_CIRC,
EASING_OUT_CIRC,
EASING_IN_OUT_CIRC,
EASING_OUT_IN_CIRC,
/* Bounce */
EASING_IN_BOUNCE,
EASING_OUT_BOUNCE,
EASING_IN_OUT_BOUNCE,
EASING_OUT_IN_BOUNCE,
};
void menu_animation_free(animation_t *animation);
bool menu_animation_push(animation_t *animation, float duration,
float target_value, float* subject,
enum animation_easing_type easing_enum, tween_cb cb);
bool menu_animation_update(animation_t *animation, float dt);
/**
* menu_animation_ticker_line:
* @buf : buffer to write new message line to.
* @len : length of buffer @input.
* @idx : Index. Will be used for ticker logic.
* @str : Input string.
* @selected : Is the item currently selected in the menu?
*
* Take the contents of @str and apply a ticker effect to it,
* and write the results in @buf.
**/
void menu_animation_ticker_line(char *buf, size_t len, unsigned tick,
const char *str, bool selected);
#ifdef __cplusplus
}
#endif
#endif