66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
|
/**
|
||
|
|
* @file lv_indev_scroll.h
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef LV_INDEV_SCROLL_H
|
||
|
|
#define LV_INDEV_SCROLL_H
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*********************
|
||
|
|
* INCLUDES
|
||
|
|
*********************/
|
||
|
|
#include "lv_obj.h"
|
||
|
|
|
||
|
|
/*********************
|
||
|
|
* DEFINES
|
||
|
|
*********************/
|
||
|
|
|
||
|
|
/**********************
|
||
|
|
* TYPEDEFS
|
||
|
|
**********************/
|
||
|
|
|
||
|
|
/**********************
|
||
|
|
* GLOBAL PROTOTYPES
|
||
|
|
**********************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Handle scrolling. Called by LVGL during input device processing
|
||
|
|
* @param proc pointer to an input device's proc field
|
||
|
|
*/
|
||
|
|
void _lv_indev_scroll_handler(_lv_indev_proc_t * proc);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Handle throwing after scrolling. Called by LVGL during input device processing
|
||
|
|
* @param proc pointer to an input device's proc field
|
||
|
|
*/
|
||
|
|
void _lv_indev_scroll_throw_handler(_lv_indev_proc_t * proc);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Predict where would a scroll throw end
|
||
|
|
* @param indev pointer to an input device
|
||
|
|
* @param dir ` LV_DIR_VER` or `LV_DIR_HOR`
|
||
|
|
* @return the difference compared to the current position when the throw would be finished
|
||
|
|
*/
|
||
|
|
lv_coord_t lv_indev_scroll_throw_predict(lv_indev_t * indev, lv_dir_t dir);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the distance of the nearest snap point
|
||
|
|
* @param obj the object on which snap points should be found
|
||
|
|
* @param p save the distance of the found snap point there
|
||
|
|
*/
|
||
|
|
void lv_indev_scroll_get_snap_dist(lv_obj_t * obj, lv_point_t * p);
|
||
|
|
|
||
|
|
/**********************
|
||
|
|
* MACROS
|
||
|
|
**********************/
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
} /*extern "C"*/
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /*LV_INDEV_SCROLL_H*/
|