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https://github.com/lvgl/lvgl.git
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105 lines
2.4 KiB
C
105 lines
2.4 KiB
C
/**
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* @file lv_indev_proc.h
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*
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*/
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#ifndef LV_INDEV_H
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#define LV_INDEV_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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#include "../lv_hal/lv_hal_indev.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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typedef enum
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{
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LV_ACTION_RES_INV = 0, /*Typically indicates that the object is deleted (become invalid) in the action function*/
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LV_ACTION_RES_OK, /*The object is valid (no deleted) after the action*/
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}lv_action_res_t;
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typedef lv_action_res_t ( * lv_action_t) (struct __LV_OBJ_T * obj);
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/**********************
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* GLOBAL PROTOTYPES
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**********************/
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/**
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* Initialize the display input subsystem
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*/
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void lv_indev_init(void);
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/**
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* Get the currently processed input device. Can be used in action functions too.
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* @return pointer to the currently processed input device or NULL if no input device processing right now
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*/
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lv_indev_t * lv_indev_get_act(void);
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/**
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* Reset all display inputs
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*/
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void lv_indev_reset(lv_indev_t * indev);
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/**
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* Reset the long press state of a display input
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* @param indev_proc pointer to a display input
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*/
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void lv_indev_reset_lpr(lv_indev_t * indev_proc);
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/**
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* Enable input devices device by type
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* @param indev pointer to an input device
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* @param cur_obj pointer to an object to be used as cursor
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*/
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void lv_indev_set_cursor(lv_indev_t * indev, lv_obj_t * cur_obj);
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/**
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* Get the last point on display input
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* @param indev_proc pointer to a display input
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* @param point pointer to a point to store the result
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*/
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void lv_indev_get_point(lv_indev_t * indev_proc, point_t * point);
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/**
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* Check if there is dragging on display input or not
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* @param indev_proc pointer to a display input
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* @return true: drag is in progress
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*/
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bool lv_indev_is_dragging(lv_indev_t * indev_proc);
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/**
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* Get the vector of dragging on a display input
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* @param indev_proc pointer to a display input
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* @param point pointer to a point to store the vector
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*/
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void lv_indev_get_vect(lv_indev_t * indev_proc, point_t * point);
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/**
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* Do nothing until the next release
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* @param indev_proc pointer to a display input
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*/
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void lv_indev_wait_release(lv_indev_t * indev_proc);
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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_H*/
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