lv_indev_private.h

Functions

lv_obj_t *lv_indev_find_scroll_obj(lv_indev_t *indev)

Find a scrollable object based on the current scroll vector in the indev. In handles scroll propagation to the parent if needed, and scroll directions too.

Parameters:: indev – pointer to an indev
Returns:: the found scrollable object or NULL if not found.

struct _lv_indev_t

Public Members

lv_indev_type_t type: Input device type

lv_indev_read_cb_t read_cb: Function pointer to read input device data.

lv_indev_state_t state: Current state of the input device.

lv_indev_state_t prev_state: Previous state of the input device.

lv_indev_mode_t mode

uint8_t long_pr_sent

uint8_t reset_query

uint8_t enabled

uint8_t wait_until_release

uint8_t stop_processing_query

uint32_t pr_timestamp: Pressed time stamp

uint32_t longpr_rep_timestamp: Long press repeat time stamp

void *driver_data

void *user_data: Pointer to the assigned display

lv_display_t *disp: Timer to periodically read the input device

lv_timer_t *read_timer: Number of pixels to slide before actually drag the object

uint8_t scroll_limit: Drag throw slow-down in [%]. Greater value means faster slow-down

uint8_t scroll_throw: At least this difference should be between two points to evaluate as gesture

uint8_t gesture_min_velocity: At least this difference should be to send a gesture

uint8_t gesture_limit: Long press time in milliseconds

uint16_t long_press_time: Repeated trigger period in long press [ms]

uint16_t long_press_repeat_time: Rotary diff count will be multiplied by this value and divided by 256

int32_t rotary_sensitivity

lv_point_t act_point: Current point of input device.

lv_point_t last_point: Last point of input device.

lv_point_t last_raw_point: Last point read from read_cb.

lv_point_t vect: Difference between act_point and last_point.

lv_point_t scroll_sum

lv_point_t scroll_throw_vect

lv_point_t scroll_throw_vect_ori

lv_obj_t *act_obj

lv_obj_t *last_obj

lv_obj_t *scroll_obj

lv_obj_t *last_pressed

lv_obj_t *last_hovered

lv_area_t scroll_area

lv_point_t gesture_sum

int32_t diff

uint8_t short_click_streak

lv_point_t last_short_click_point

uint32_t last_short_click_timestamp

uint8_t scroll_dir

uint8_t gesture_dir

uint8_t gesture_sent

uint8_t press_moved

uint8_t pressed

struct _lv_indev_t pointer

lv_indev_state_t last_state

uint32_t last_key

struct _lv_indev_t keypad

lv_obj_t *cursor: Cursor for LV_INPUT_TYPE_POINTER

lv_group_t *group: Keypad destination group

const lv_point_t *btn_points: Array points assigned to the button ()screen will be pressed here by the buttons

lv_event_list_t event_list

lv_anim_t *scroll_throw_anim

lv_indev_gesture_type_t gesture_type

void *gesture_data