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lv_tileview: add the new object type

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This commit is contained in:
Gabor Kiss-Vamosi 2018-11-25 12:02:16 +01:00
parent 3785fc4887
commit c62cd4dfcb
3 changed files with 723 additions and 4 deletions
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5
lv_core/lv_indev.c
View File

@ -821,11 +821,12 @@ static void indev_drag(lv_indev_proc_t * state)
if(lv_obj_get_drag(drag_obj) == false) return;
/*If still there is no drag then count the movement*/
if(state->drag_range_out == 0) {
/*Count the movement by drag*/
state->drag_sum.x += state->vect.x;
state->drag_sum.y += state->vect.y;
/*Enough move?*/
if(state->drag_range_out == 0) {
/*If a move is greater then LV_DRAG_LIMIT then begin the drag*/
if(LV_MATH_ABS(state->drag_sum.x) >= LV_INDEV_DRAG_LIMIT ||
LV_MATH_ABS(state->drag_sum.y) >= LV_INDEV_DRAG_LIMIT) {

574
lv_objx/lv_tileview.c Normal file
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@ -0,0 +1,574 @@
/**
* @file lv_tileview.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_tileview.h"
#if USE_LV_TILEVIEW != 0
#include <stdbool.h>
#include "lv_cont.h"
/*********************
* DEFINES
*********************/
#if USE_LV_ANIMATION
# ifndef LV_TILEVIEW_ANIM_TIME
# define LV_TILEVIEW_ANIM_TIME 300 /*Animation time loading a tile [ms] (0: no animation) */
# endif
#else
# undef LV_TILEVIEW_ANIM_TIME
# define LV_TILEVIEW_ANIM_TIME 0 /*No animations*/
#endif
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static lv_res_t lv_tileview_signal(lv_obj_t * tileview, lv_signal_t sign, void * param);
static lv_res_t lv_tileview_scrl_signal(lv_obj_t * scrl, lv_signal_t sign, void * param);
static lv_res_t element_signal_func(lv_obj_t * element, lv_signal_t sign, void * param);
static void drag_end_handler(lv_obj_t * tileview);
static bool set_valid_drag_dirs(lv_obj_t * tileview);
/**********************
* STATIC VARIABLES
**********************/
static lv_signal_func_t ancestor_signal;
static lv_signal_func_t ancestor_scrl_signal;
static lv_design_func_t ancestor_design;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Create a tileview object
* @param par pointer to an object, it will be the parent of the new tileview
* @param copy pointer to a tileview object, if not NULL then the new object will be copied from it
* @return pointer to the created tileview
*/
lv_obj_t * lv_tileview_create(lv_obj_t * par, const lv_obj_t * copy)
{
LV_LOG_TRACE("tileview create started");
/*Create the ancestor of tileview*/
lv_obj_t * new_tileview = lv_page_create(par, copy);
lv_mem_assert(new_tileview);
if(new_tileview == NULL) return NULL;
/*Allocate the tileview type specific extended data*/
lv_tileview_ext_t * ext = lv_obj_allocate_ext_attr(new_tileview, sizeof(lv_tileview_ext_t));
lv_mem_assert(ext);
if(ext == NULL) return NULL;
if(ancestor_signal == NULL) ancestor_signal = lv_obj_get_signal_func(new_tileview);
if(ancestor_scrl_signal == NULL) ancestor_scrl_signal = lv_obj_get_signal_func(lv_page_get_scrl(new_tileview));
if(ancestor_design == NULL) ancestor_design = lv_obj_get_design_func(new_tileview);
/*Initialize the allocated 'ext' */
ext->anim_time = LV_TILEVIEW_ANIM_TIME;
ext->action = NULL;
ext->act_id.x = 0;
ext->act_id.y = 0;
ext->valid_pos = NULL;
/*The signal and design functions are not copied so set them here*/
lv_obj_set_signal_func(new_tileview, lv_tileview_signal);
lv_obj_set_signal_func(lv_page_get_scrl(new_tileview), lv_tileview_scrl_signal);
/*Init the new tileview*/
if(copy == NULL) {
lv_obj_set_size(new_tileview, LV_HOR_RES, LV_VER_RES);
lv_obj_set_drag_throw(lv_page_get_scrl(new_tileview), false);
lv_page_set_scrl_fit(new_tileview, true, true);
lv_page_set_style(new_tileview, LV_PAGE_STYLE_BG, &lv_style_transp_tight);
lv_page_set_style(new_tileview, LV_PAGE_STYLE_SCRL, &lv_style_transp_tight);
}
/*Copy an existing tileview*/
else {
lv_tileview_ext_t * copy_ext = lv_obj_get_ext_attr(copy);
ext->act_id.x = copy_ext->act_id.x;
ext->act_id.y = copy_ext->act_id.y;
ext->action = copy_ext->action;
ext->anim_time = copy_ext->anim_time;
/*Refresh the style with new signal function*/
lv_obj_refresh_style(new_tileview);
}
LV_LOG_INFO("tileview created");
return new_tileview;
}
/*======================
* Add/remove functions
*=====================*/
/**
* Register an object on the tileview. The register object will able to slide the tileview
* @param tileview pointer to a tileview object
* @param element pointer to an object
*/
void lv_tileview_add_element(lv_obj_t * tileview, lv_obj_t * element)
{
(void) tileview; /*Unused*/
lv_obj_set_free_ptr(element, lv_obj_get_signal_func(element));
lv_obj_set_signal_func(element, element_signal_func);
}
/*=====================
* Setter functions
*====================*/
/**
* Set the valid position's indices. The scrolling will be possible only to these positions.
* @param tileview pointer to a Tileview object
* @param valid_pos array width the indices. E.g. `lv_point_t p[] = {{0,0}, {1,0}, {1,1}, {LV_COORD_MIN, LV_COORD_MIN}};`
* Must be closed with `{LV_COORD_MIN, LV_COORD_MIN}`. Only the pointer is saved so can't be a local variable.
*/
void lv_tileview_set_valid_positions(lv_obj_t * tileview, const lv_point_t * valid_pos)
{
lv_tileview_ext_t * ext = lv_obj_get_ext_attr(tileview);
ext->valid_pos = valid_pos;
}
/**
* Set the tile to be shown
* @param tileview pointer to a tileview object
* @param x column id (0, 1, 2...)
* @param y line id (0, 1, 2...)
* @param anim_en true: move with animation
*/
void lv_tileview_set_tile_act(lv_obj_t * tileview, lv_coord_t x, lv_coord_t y, bool anim_en)
{
#if USE_LV_ANIMATION == 0
anim_en = false;
#endif
lv_tileview_ext_t * ext = lv_obj_get_ext_attr(tileview);
uint16_t i;
bool valid = false;
for(i = 0; ext->valid_pos[i].x != LV_COORD_MIN; i++) {
if(ext->valid_pos[i].x == x && ext->valid_pos[i].y == y) {
valid = true;
}
}
if(valid == false) return; /*Don't load not valid tiles*/
lv_res_t res = LV_RES_OK;
if(ext->action) res = ext->action(tileview, x, y);
if(res != LV_RES_OK) return; /*Prevent the tile loading*/
ext->act_id.x = x;
ext->act_id.y = y;
lv_coord_t x_coord = -x * lv_obj_get_width(tileview);
lv_coord_t y_coord = -y * lv_obj_get_height(tileview);
lv_obj_t * scrl = lv_page_get_scrl(tileview);
if(anim_en) {
#if USE_LV_ANIMATION
lv_coord_t x_act = lv_obj_get_x(scrl);
lv_coord_t y_act = lv_obj_get_y(scrl);
lv_anim_t a;
a.var = scrl;
a.fp = (lv_anim_fp_t)lv_obj_set_x;
a.path = lv_anim_path_linear;
a.end_cb = NULL;
a.act_time = 0;
a.time = ext->anim_time;
a.playback = 0;
a.playback_pause = 0;
a.repeat = 0;
a.repeat_pause = 0;
if(x_coord != x_act) {
a.start = x_act;
a.end = x_coord;
lv_anim_create(&a);
}
if(y_coord != y_act) {
a.start = y_act;
a.end = y_coord;
a.fp = (lv_anim_fp_t)lv_obj_set_y;
lv_anim_create(&a);
}
#endif
} else {
lv_obj_set_size(tileview, x_coord, y_coord);
}
}
void lv_tileview_set_tile_load_action(lv_obj_t * tileview, lv_tileview_action_t action)
{
lv_tileview_ext_t * ext = lv_obj_get_ext_attr(tileview);
ext->action = action;
}
/**
* Set a style of a tileview.
* @param tileview pointer to tileview object
* @param type which style should be set
* @param style pointer to a style
*/
void lv_tileview_set_style(lv_obj_t * tileview, lv_tileview_style_t type, lv_style_t * style)
{
switch(type) {
case LV_TILEVIEW_STYLE_BG:
lv_obj_set_style(tileview, style);
break;
}
}
/*=====================
* Getter functions
*====================*/
/*
* New object specific "get" functions come here
*/
/**
* Get style of a tileview.
* @param tileview pointer to tileview object
* @param type which style should be get
* @return style pointer to the style
*/
lv_style_t * lv_tileview_get_style(const lv_obj_t * tileview, lv_tileview_style_t type)
{
lv_style_t * style = NULL;
switch(type) {
case LV_TILEVIEW_STYLE_BG:
style = lv_obj_get_style(tileview);
break;
default:
style = NULL;
}
return style;
}
/*=====================
* Other functions
*====================*/
/*
* New object specific "other" functions come here
*/
/**********************
* STATIC FUNCTIONS
**********************/
/**
* Signal function of the tileview
* @param tileview pointer to a tileview object
* @param sign a signal type from lv_signal_t enum
* @param param pointer to a signal specific variable
* @return LV_RES_OK: the object is not deleted in the function; LV_RES_INV: the object is deleted
*/
static lv_res_t lv_tileview_signal(lv_obj_t * tileview, lv_signal_t sign, void * param)
{
lv_res_t res;
/* Include the ancient signal function */
res = ancestor_signal(tileview, sign, param);
if(res != LV_RES_OK) return res;
if(sign == LV_SIGNAL_CLEANUP) {
/*Nothing to cleanup. (No dynamically allocated memory in 'ext')*/
} else if(sign == LV_SIGNAL_GET_TYPE) {
lv_obj_type_t * buf = param;
uint8_t i;
for(i = 0; i < LV_MAX_ANCESTOR_NUM - 1; i++) { /*Find the last set data*/
if(buf->type[i] == NULL) break;
}
buf->type[i] = "lv_tileview";
}
return res;
}
/**
* Signal function of the tileview scrollable
* @param tileview pointer to the scrollable part of the tileview object
* @param sign a signal type from lv_signal_t enum
* @param param pointer to a signal specific variable
* @return LV_RES_OK: the object is not deleted in the function; LV_RES_INV: the object is deleted
*/
static lv_res_t lv_tileview_scrl_signal(lv_obj_t * scrl, lv_signal_t sign, void * param)
{
lv_res_t res;
/* Include the ancient signal function */
res = ancestor_scrl_signal(scrl, sign, param);
if(res != LV_RES_OK) return res;
lv_obj_t * tileview = lv_obj_get_parent(scrl);
/*Apply constraint on moving of the tileview*/
if(sign == LV_SIGNAL_CORD_CHG) {
lv_indev_t * indev = lv_indev_get_act();
if(indev) {
lv_tileview_ext_t * ext = lv_obj_get_ext_attr(tileview);
/*Set horizontal drag constraint if no vertical constraint an dragged to valid x direction */
if(ext->drag_ver == 0 &&
((ext->drag_right_en && indev->proc.drag_sum.x <= -LV_INDEV_DRAG_LIMIT) ||
(ext->drag_left_en && indev->proc.drag_sum.x >= LV_INDEV_DRAG_LIMIT))) {
ext->drag_hor = 1;
}
/*Set vertical drag constraint if no horizontal constraint an dragged to valid y direction */
if(ext->drag_hor == 0 &&
((ext->drag_bottom_en && indev->proc.drag_sum.y <= -LV_INDEV_DRAG_LIMIT) ||
(ext->drag_top_en && indev->proc.drag_sum.y >= LV_INDEV_DRAG_LIMIT))) {
ext->drag_ver = 1;
}
if(ext->drag_hor) {
ext->page.edge_flash.top_ip = 0;
ext->page.edge_flash.bottom_ip = 0;
}
if(ext->drag_ver) {
ext->page.edge_flash.right_ip = 0;
ext->page.edge_flash.left_ip = 0;
}
lv_coord_t x = lv_obj_get_x(scrl);
lv_coord_t y = lv_obj_get_y(scrl);
lv_coord_t h = lv_obj_get_height(tileview);
lv_coord_t w = lv_obj_get_width(tileview);
if(ext->drag_top_en == 0) {
if(y > -(ext->act_id.y * h) && indev->proc.vect.y > 0 && ext->drag_hor == 0) {
printf("top: y:%d\n", y);
if(ext->page.edge_flash.enabled &&
ext->page.edge_flash.left_ip == 0 && ext->page.edge_flash.right_ip == 0 &&
ext->page.edge_flash.top_ip == 0 && ext->page.edge_flash.bottom_ip == 0) {
ext->page.edge_flash.top_ip = 1;
lv_page_start_edge_flash(tileview);
}
lv_obj_set_y(scrl, -ext->act_id.y * h);
}
}
if(ext->drag_bottom_en == 0 && indev->proc.vect.y < 0 && ext->drag_hor == 0) {
printf("bottom: y:%d\n", y);
if(y < -(ext->act_id.y * h)) {
if(ext->page.edge_flash.enabled &&
ext->page.edge_flash.left_ip == 0 && ext->page.edge_flash.right_ip == 0 &&
ext->page.edge_flash.top_ip == 0 && ext->page.edge_flash.bottom_ip == 0) {
ext->page.edge_flash.bottom_ip = 1;
lv_page_start_edge_flash(tileview);
}
}
lv_obj_set_y(scrl, -ext->act_id.y * h);
}
if(ext->drag_left_en == 0) {
if(x > -(ext->act_id.x * w) && indev->proc.vect.x > 0 && ext->drag_ver == 0) {
printf("left: x:%d\n", x);
if(ext->page.edge_flash.enabled &&
ext->page.edge_flash.left_ip == 0 && ext->page.edge_flash.right_ip == 0 &&
ext->page.edge_flash.top_ip == 0 && ext->page.edge_flash.bottom_ip == 0) {
ext->page.edge_flash.left_ip = 1;
lv_page_start_edge_flash(tileview);
}
lv_obj_set_x(scrl, -ext->act_id.x * w);
}
}
if(ext->drag_right_en == 0 && indev->proc.vect.x < 0 && ext->drag_ver == 0) {
printf("right: x:%d\n", x);
if(x < -(ext->act_id.x * w)) {
if(ext->page.edge_flash.enabled &&
ext->page.edge_flash.left_ip == 0 && ext->page.edge_flash.right_ip == 0 &&
ext->page.edge_flash.top_ip == 0 && ext->page.edge_flash.bottom_ip == 0) {
ext->page.edge_flash.right_ip = 1;
lv_page_start_edge_flash(tileview);
}
}
lv_obj_set_x(scrl, -ext->act_id.x * w);
}
/*Apply the drag constraints*/
if(ext->drag_ver == 0) lv_obj_set_y(scrl, - ext->act_id.y * lv_obj_get_height(tileview));
if(ext->drag_hor == 0) lv_obj_set_x(scrl, - ext->act_id.x * lv_obj_get_width(tileview));
}
}
return res;
}
/**
* This function is applied called for the elements of the tileview. Used when the element is
* @param element
* @param sign
* @param param
* @return
*/
static lv_res_t element_signal_func(lv_obj_t * element, lv_signal_t sign, void * param)
{
lv_res_t res;
/* Include the ancient signal function */
lv_signal_func_t sign_func = lv_obj_get_free_ptr(element);
res = sign_func(element, sign, param);
if(res != LV_RES_OK) return res;
/*Initialize some variables on PRESS*/
if(sign == LV_SIGNAL_PRESSED) {
/*Get the tileview from the element*/
lv_obj_t * tileview = lv_obj_get_parent(element);
while(tileview) {
if(lv_obj_get_signal_func(tileview) != lv_tileview_signal) tileview = lv_obj_get_parent(tileview);
else break;
}
if(tileview) {
lv_tileview_ext_t * ext = lv_obj_get_ext_attr(tileview);
ext->drag_hor = 0;
ext->drag_ver = 0;
set_valid_drag_dirs(tileview);
}
}
/*Animate the tabview to the correct location on RELEASE*/
else if(sign == LV_SIGNAL_PRESS_LOST || sign == LV_SIGNAL_RELEASED) {
/*Get the tileview from the element*/
lv_obj_t * tileview = lv_obj_get_parent(element);
while(tileview) {
if(lv_obj_get_signal_func(tileview) != lv_tileview_signal) tileview = lv_obj_get_parent(tileview);
else break;
}
if(tileview) {
/* If the element was dragged and it moved the tileview finish the drag manually to
* let the tileview to finish the move.*/
lv_indev_t * indev = lv_indev_get_act();
lv_tileview_ext_t * ext = lv_obj_get_ext_attr(tileview);
if(indev->proc.drag_in_prog && (ext->drag_hor || ext->drag_ver)) {
lv_obj_t * drag_obj = element;
while(lv_obj_get_drag_parent(drag_obj)) {
drag_obj = lv_obj_get_parent(drag_obj);
if(drag_obj == NULL) break;
}
indev->proc.drag_in_prog = 0;
if(drag_obj) drag_obj->signal_func(drag_obj, LV_SIGNAL_DRAG_END, NULL);
}
drag_end_handler(tileview);
}
}
return res;
}
/**
* Called when the user releases an element of the tileview after dragging it.
* @param tileview pointer to a tileview object
*/
static void drag_end_handler(lv_obj_t * tileview)
{
lv_tileview_ext_t * ext = lv_obj_get_ext_attr(tileview);
lv_indev_t * indev = lv_indev_get_act();
lv_point_t point_act;
lv_indev_get_point(indev, &point_act);
lv_obj_t * scrl = lv_page_get_scrl(tileview);
lv_point_t p;
p.x = - (scrl->coords.x1 - LV_HOR_RES / 2);
p.y = - (scrl->coords.y1 - LV_VER_RES / 2);
/*From the drag vector (drag throw) predict the end position*/
if(ext->drag_hor) {
lv_point_t vect;
lv_indev_get_vect(indev, &vect);
lv_coord_t predict = 0;
while(vect.x != 0) {
predict += vect.x;
vect.x = vect.x * (100 - LV_INDEV_DRAG_THROW) / 100;
}
p.x -= predict;
}
else if(ext->drag_ver) {
lv_point_t vect;
lv_indev_get_vect(indev, &vect);
lv_coord_t predict = 0;
while(vect.y != 0) {
predict += vect.y;
vect.y = vect.y * (100 - LV_INDEV_DRAG_THROW) / 100;
}
p.y -= predict;
}
/*Get the index of the tile*/
p.x = p.x / lv_obj_get_width(tileview);
p.y = p.y / lv_obj_get_height(tileview);
/*Max +- move*/
lv_coord_t x_move = p.x - ext->act_id.x;
lv_coord_t y_move = p.y - ext->act_id.y;
if(x_move < -1) x_move = -1;
if(x_move > 1) x_move = 1;
if(y_move < -1) y_move = -1;
if(y_move > 1) y_move = 1;
/*Set the new tile*/
lv_tileview_set_tile_act(tileview, ext->act_id.x + x_move, ext->act_id.y + y_move,true);
}
static bool set_valid_drag_dirs(lv_obj_t * tileview)
{
lv_tileview_ext_t * ext = lv_obj_get_ext_attr(tileview);
if(ext->valid_pos == NULL) return false;
ext->drag_bottom_en = 0;
ext->drag_top_en = 0;
ext->drag_left_en = 0;
ext->drag_right_en = 0;
uint16_t i;
for(i = 0; ext->valid_pos[i].x != LV_COORD_MIN; i++) {
if(ext->valid_pos[i].x == ext->act_id.x && ext->valid_pos[i].y == ext->act_id.y - 1) ext->drag_top_en = 1;
if(ext->valid_pos[i].x == ext->act_id.x && ext->valid_pos[i].y == ext->act_id.y + 1) ext->drag_bottom_en = 1;
if(ext->valid_pos[i].x == ext->act_id.x - 1 && ext->valid_pos[i].y == ext->act_id.y) ext->drag_left_en = 1;
if(ext->valid_pos[i].x == ext->act_id.x + 1 && ext->valid_pos[i].y == ext->act_id.y) ext->drag_right_en = 1;
}
return true;
}
#endif

144
lv_objx/lv_tileview.h Normal file
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@ -0,0 +1,144 @@
/**
* @file lv_tileview.h
*
*/
#ifndef LV_TILEVIEW_H
#define LV_TILEVIEW_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#ifdef LV_CONF_INCLUDE_SIMPLE
#include "lv_conf.h"
#else
#include "../../lv_conf.h"
#endif
#if USE_LV_TILEVIEW != 0
#include "../lv_objx/lv_page.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/* parametes: pointer to a tileview object, x, y (tile coordinates to load)
* return: LV_RES_INV: to prevent the loading of the tab; LV_RES_OK: if everything is fine*/
typedef lv_res_t (*lv_tileview_action_t)(lv_obj_t *, lv_coord_t, lv_coord_t);
/*Data of tileview*/
typedef struct {
lv_page_ext_t page;
/*New data for this type */
const lv_point_t * valid_pos;
uint16_t anim_time;
lv_tileview_action_t action;
lv_point_t act_id;
uint8_t drag_top_en :1;
uint8_t drag_bottom_en :1;
uint8_t drag_left_en :1;
uint8_t drag_right_en :1;
uint8_t drag_hor :1;
uint8_t drag_ver :1;
} lv_tileview_ext_t;
/*Styles*/
enum {
LV_TILEVIEW_STYLE_BG,
};
typedef uint8_t lv_tileview_style_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Create a tileview objects
* @param par pointer to an object, it will be the parent of the new tileview
* @param copy pointer to a tileview object, if not NULL then the new object will be copied from it
* @return pointer to the created tileview
*/
lv_obj_t * lv_tileview_create(lv_obj_t * par, const lv_obj_t * copy);
/*======================
* Add/remove functions
*=====================*/
/**
* Register an object on the tileview. The register object will able to slide the tileview
* @param tileview pointer to a tileview object
* @param element pointer to an object
*/
void lv_tileview_add_element(lv_obj_t * tileview, lv_obj_t * element);
/*=====================
* Setter functions
*====================*/
/**
* Set the valid position's indices. The scrolling will be possible only to these positions.
* @param tileview pointer to a Tileview object
* @param valid_pos array width the indices. E.g. `lv_point_t p[] = {{0,0}, {1,0}, {1,1}, {LV_COORD_MIN, LV_COORD_MIN}};`
* Must be closed with `{LV_COORD_MIN, LV_COORD_MIN}`. Only the pointer is saved so can't be a local variable.
*/
void lv_tileview_set_valid_positions(lv_obj_t * tileview, const lv_point_t * valid_pos);
/**
* Set the tile to be shown
* @param tileview pointer to a tileview object
* @param x column id (0, 1, 2...)
* @param y line id (0, 1, 2...)
* @param anim_en true: move with animation
*/
void lv_tileview_set_tile_act(lv_obj_t * tileview, lv_coord_t x, lv_coord_t y, bool anim_en);
/**
* Set a style of a tileview.
* @param tileview pointer to tileview object
* @param type which style should be set
* @param style pointer to a style
*/
void lv_tileview_set_style(lv_obj_t * tileview, lv_tileview_style_t type, lv_style_t *style);
/*=====================
* Getter functions
*====================*/
/**
* Get style of a tileview.
* @param tileview pointer to tileview object
* @param type which style should be get
* @return style pointer to the style
*/
lv_style_t * lv_tileview_get_style(const lv_obj_t * tileview, lv_tileview_style_t type);
/*=====================
* Other functions
*====================*/
/**********************
* MACROS
**********************/
#endif /*USE_LV_TILEVIEW*/
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /*LV_TILEVIEW_H*/