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https://github.com/lvgl/lvgl.git
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129 lines
3.4 KiB
C
129 lines
3.4 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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#include "../lv_core/lv_group.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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* Initialize the display input device 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 one or all input devices
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* @param indev pointer to an input device to reset or NULL to reset all of them
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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 an input device
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* @param indev_proc pointer to an input device
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*/
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void lv_indev_reset_lpr(lv_indev_t * indev);
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/**
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* Enable input devices device by type
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* @param type Input device type
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* @param enable true: enable this type; false: disable this type
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*/
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void lv_indev_enable(lv_hal_indev_type_t type, bool enable);
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/**
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* Set a cursor for a pointer input device (for LV_INPUT_TYPE_POINTER and LV_INPUT_TYPE_BUTTON)
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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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#if USE_LV_GROUP
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/**
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* Set a destination group for a keypad input device (for LV_INDEV_TYPE_KEYPAD)
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* @param indev pointer to an input device
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* @param group point to a group
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*/
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void lv_indev_set_group(lv_indev_t *indev, lv_group_t *group);
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#endif
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/**
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* Set the an array of points for LV_INDEV_TYPE_BUTTON.
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* These points will be assigned to the buttons to press a specific point on the screen
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* @param indev pointer to an input device
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* @param group point to a group
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*/
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void lv_indev_set_button_points(lv_indev_t *indev, lv_point_t *points);
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/**
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* Get the last point of an input device (for LV_INDEV_TYPE_POINTER and LV_INDEV_TYPE_BUTTON)
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* @param indev pointer to an input device
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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, lv_point_t * point);
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/**
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* Check if there is dragging with an input device or not (for LV_INDEV_TYPE_POINTER and LV_INDEV_TYPE_BUTTON)
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* @param indev pointer to an input device
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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);
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/**
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* Get the vector of dragging of an input device (for LV_INDEV_TYPE_POINTER and LV_INDEV_TYPE_BUTTON)
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* @param indev pointer to an input device
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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, lv_point_t * point);
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/**
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* Get elapsed time since last press
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* @param indev pointer to an input device (NULL to get the overall smallest inactivity)
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* @return Elapsed ticks (milliseconds) since last press
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*/
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uint32_t lv_indev_get_inactive_time(lv_indev_t * indev);
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/**
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* Do nothing until the next release
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* @param indev pointer to an input device
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*/
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void lv_indev_wait_release(lv_indev_t * indev);
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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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