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