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seyyah/lv_test_tabview.c

Last active April 18, 2019 11:51
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LittlevGL Tabview: LV_TABVIEW_BTNS_POS_LEFT
Raw
lv_test_tabview.c
void lv_test_tabview_2(void){
lv_coord_t hres = lv_disp_get_hor_res(NULL);
lv_coord_t vres = lv_disp_get_ver_res(NULL);
lv_obj_t * tv3 = lv_tabview_create(lv_disp_get_scr_act(NULL), NULL);
LV_LOG_WARN("create");
lv_tabview_set_btns_pos(tv3, LV_TABVIEW_BTNS_POS_LEFT);
static lv_style_t style;
lv_style_copy(&style, &lv_style_pretty);
lv_obj_set_style(tv3, &style);
static lv_style_t h_style;
lv_style_copy(&h_style, &lv_style_pretty);
h_style.body.opa = LV_OPA_COVER;
lv_tabview_set_style(tv3, LV_TABVIEW_STYLE_BTN_BG, &h_style);
lv_tabview_add_tab(tv3, "111");
lv_tabview_add_tab(tv3, "222");
lv_tabview_add_tab(tv3, "333");
lv_tabview_add_tab(tv3, "444");
// lv_obj_set_size(tv3, hres / 2 - 10, vres / 2 - 10);
lv_obj_set_size(tv3, 600, 200);
lv_obj_set_pos(tv3, 50, 50);
lv_obj_t * tab = lv_tabview_get_tab(tv3, 0);
lv_obj_t * label = lv_label_create(tab, NULL);
lv_label_set_text(label, "1111This is\n\n\nA long text\n\n\ntext\n\n\non the\n\n\nsecond\n\n\ntab\n\n\nto see\n\n\nthe scrolling");
tab = lv_tabview_get_tab(tv3, 1);
label = lv_label_create(tab, NULL);
lv_label_set_text(label, "2222");
tab = lv_tabview_get_tab(tv3, 2);
label = lv_label_create(tab, NULL);
lv_label_set_text(label, "3333");
tab = lv_tabview_get_tab(tv3, 3);
label = lv_label_create(tab, NULL);
lv_label_set_text(label, "444");
}
Raw
tabview.c
/**
* @file lv_tab.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_tabview.h"
#if LV_USE_TABVIEW != 0
#include "lv_btnm.h"
#include "../lv_themes/lv_theme.h"
#include "../lv_misc/lv_anim.h"
#include "../lv_core/lv_disp.h"
/*********************
* DEFINES
*********************/
#if LV_USE_ANIMATION
#ifndef LV_TABVIEW_ANIM_TIME
#define LV_TABVIEW_DEF_ANIM_TIME \
300 /*Animation time of focusing to the a list element [ms] (0: no animation) */
#endif
#else
#undef LV_TABVIEW_DEF_ANIM_TIME
#define LV_TABVIEW_DEF_ANIM_TIME 0 /*No animations*/
#endif
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static lv_res_t lv_tabview_signal(lv_obj_t * tabview, lv_signal_t sign, void * param);
static lv_res_t tabpage_signal(lv_obj_t * tab_page, lv_signal_t sign, void * param);
static lv_res_t tabpage_scrl_signal(lv_obj_t * tab_scrl, lv_signal_t sign, void * param);
static void tabpage_pressed_handler(lv_obj_t * tabview, lv_obj_t * tabpage);
static void tabpage_pressing_handler(lv_obj_t * tabview, lv_obj_t * tabpage);
static void tabpage_press_lost_handler(lv_obj_t * tabview, lv_obj_t * tabpage);
static void tab_btnm_event_cb(lv_obj_t * tab_btnm, lv_event_t event);
static void tabview_realign(lv_obj_t * tabview);
/**********************
* STATIC VARIABLES
**********************/
static lv_signal_cb_t ancestor_signal;
static lv_signal_cb_t page_signal;
static lv_signal_cb_t page_scrl_signal;
static const char * tab_def[] = {""};
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Create a Tab view object
* @param par pointer to an object, it will be the parent of the new tab
* @param copy pointer to a tab object, if not NULL then the new object will be copied from it
* @return pointer to the created tab
*/
lv_obj_t * lv_tabview_create(lv_obj_t * par, const lv_obj_t * copy)
{
LV_LOG_TRACE("tab view create started");
/*Create the ancestor of tab*/
lv_obj_t * new_tabview = lv_obj_create(par, copy);
lv_mem_assert(new_tabview);
if(new_tabview == NULL) return NULL;
if(ancestor_signal == NULL) ancestor_signal = lv_obj_get_signal_cb(new_tabview);
/*Allocate the tab type specific extended data*/
lv_tabview_ext_t * ext = lv_obj_allocate_ext_attr(new_tabview, sizeof(lv_tabview_ext_t));
lv_mem_assert(ext);
if(ext == NULL) return NULL;
/*Initialize the allocated 'ext' */
ext->drag_hor = 0;
ext->draging = 0;
ext->scroll_ver = 0;
ext->slide_enable = 1;
ext->tab_cur = 0;
ext->point_last.x = 0;
ext->point_last.y = 0;
ext->content = NULL;
ext->indic = NULL;
ext->btns = NULL;
ext->btns_pos = LV_TABVIEW_BTNS_POS_TOP;
ext->anim_time = LV_TABVIEW_DEF_ANIM_TIME;
ext->btns_hide = 0;
/*The signal and design functions are not copied so set them here*/
lv_obj_set_signal_cb(new_tabview, lv_tabview_signal);
/*Init the new tab tab*/
if(copy == NULL) {
ext->tab_name_ptr = lv_mem_alloc(sizeof(char *));
lv_mem_assert(ext->tab_name_ptr);
if(ext->tab_name_ptr == NULL) return NULL;
ext->tab_name_ptr[0] = "";
ext->tab_cnt = 0;
/* Set a size which fits into the parent.
* Don't use `par` directly because if the tabview is created on a page it is moved to the
* scrollable so the parent has changed */
lv_obj_set_size(new_tabview, lv_obj_get_width_fit(lv_obj_get_parent(new_tabview)),
lv_obj_get_height_fit(lv_obj_get_parent(new_tabview)));
ext->content = lv_cont_create(new_tabview, NULL);
ext->btns = lv_btnm_create(new_tabview, NULL);
// gabor: 1. lv_obj_set_height(ext->btns, 3 * LV_DPI / 4);
lv_obj_set_size(ext->btns, LV_DPI, lv_obj_get_height_fit(new_tabview));
lv_btnm_set_map(ext->btns, tab_def);
lv_obj_set_event_cb(ext->btns, tab_btnm_event_cb);
ext->indic = lv_obj_create(ext->btns, NULL);
// gabor: 2. lv_obj_set_width(ext->indic, LV_DPI);
lv_obj_set_width(ext->indic, LV_DPI / 15);
// gabor: 3. lv_obj_align(ext->indic, ext->btns, LV_ALIGN_IN_BOTTOM_LEFT, 0, 0);
lv_obj_align(ext->indic, ext->btns, LV_ALIGN_IN_TOP_RIGHT, 0, 0);
lv_obj_set_click(ext->indic, false);
// ext->content = lv_cont_create(new_tabview, NULL);
// gabor: 4. lv_cont_set_fit2(ext->content, LV_FIT_TIGHT, LV_FIT_NONE);
// seyyah: vertical page: lv_cont_set_fit2(ext->content, LV_FIT_NONE, LV_FIT_TIGHT);
lv_cont_set_fit2(ext->content, LV_FIT_TIGHT, LV_FIT_NONE);
// gabor: 5. lv_cont_set_layout(ext->content, LV_LAYOUT_ROW_T);
// seyyah: vertical page: lv_cont_set_layout(ext->content, LV_LAYOUT_COL_L);
lv_cont_set_layout(ext->content, LV_LAYOUT_ROW_T);
lv_cont_set_style(ext->content, &lv_style_transp_tight);
// gabor: 6. lv_obj_set_height(ext->content,
// lv_obj_get_height(new_tabview) - lv_obj_get_height(ext->btns));
lv_obj_set_width(ext->content,
lv_obj_get_width(new_tabview) - lv_obj_get_width(ext->btns));
// gabor: 7. lv_obj_align(ext->content, ext->btns, LV_ALIGN_OUT_BOTTOM_LEFT, 0, 0);
// seyyah: vertical page: lv_obj_align(ext->content, new_tabview, LV_ALIGN_IN_TOP_RIGHT, 0, 0);
lv_obj_align(ext->content, new_tabview, LV_ALIGN_IN_TOP_LEFT, lv_obj_get_width(ext->btns), 0);
/*Set the default styles*/
lv_theme_t * th = lv_theme_get_current();
if(th) {
lv_tabview_set_style(new_tabview, LV_TABVIEW_STYLE_BG, th->style.tabview.bg);
lv_tabview_set_style(new_tabview, LV_TABVIEW_STYLE_INDIC, th->style.tabview.indic);
lv_tabview_set_style(new_tabview, LV_TABVIEW_STYLE_BTN_BG, th->style.tabview.btn.bg);
lv_tabview_set_style(new_tabview, LV_TABVIEW_STYLE_BTN_REL, th->style.tabview.btn.rel);
lv_tabview_set_style(new_tabview, LV_TABVIEW_STYLE_BTN_PR, th->style.tabview.btn.pr);
lv_tabview_set_style(new_tabview, LV_TABVIEW_STYLE_BTN_TGL_REL,
th->style.tabview.btn.tgl_rel);
lv_tabview_set_style(new_tabview, LV_TABVIEW_STYLE_BTN_TGL_PR,
th->style.tabview.btn.tgl_pr);
} else {
lv_tabview_set_style(new_tabview, LV_TABVIEW_STYLE_BG, &lv_style_plain);
lv_tabview_set_style(new_tabview, LV_TABVIEW_STYLE_BTN_BG, &lv_style_transp);
lv_tabview_set_style(new_tabview, LV_TABVIEW_STYLE_INDIC, &lv_style_plain_color);
}
}
/*Copy an existing tab view*/
else {
lv_tabview_ext_t * copy_ext = lv_obj_get_ext_attr(copy);
ext->point_last.x = 0;
ext->point_last.y = 0;
ext->btns = lv_btnm_create(new_tabview, copy_ext->btns);
ext->indic = lv_obj_create(ext->btns, copy_ext->indic);
ext->content = lv_cont_create(new_tabview, copy_ext->content);
ext->anim_time = copy_ext->anim_time;
ext->tab_name_ptr = lv_mem_alloc(sizeof(char *));
lv_mem_assert(ext->tab_name_ptr);
if(ext->tab_name_ptr == NULL) return NULL;
ext->tab_name_ptr[0] = "";
lv_btnm_set_map(ext->btns, ext->tab_name_ptr);
uint16_t i;
lv_obj_t * new_tab;
lv_obj_t * copy_tab;
for(i = 0; i < copy_ext->tab_cnt; i++) {
new_tab = lv_tabview_add_tab(new_tabview, copy_ext->tab_name_ptr[i]);
copy_tab = lv_tabview_get_tab(copy, i);
lv_page_set_style(new_tab, LV_PAGE_STYLE_BG,
lv_page_get_style(copy_tab, LV_PAGE_STYLE_BG));
lv_page_set_style(new_tab, LV_PAGE_STYLE_SCRL,
lv_page_get_style(copy_tab, LV_PAGE_STYLE_SCRL));
lv_page_set_style(new_tab, LV_PAGE_STYLE_SB,
lv_page_get_style(copy_tab, LV_PAGE_STYLE_SB));
}
/*Refresh the style with new signal function*/
lv_obj_refresh_style(new_tabview);
}
LV_LOG_INFO("tab view created");
return new_tabview;
}
/**
* Delete all children of the scrl object, without deleting scrl child.
* @param obj pointer to an object
*/
void lv_tabview_clean(lv_obj_t * obj)
{
lv_obj_t * scrl = lv_page_get_scrl(obj);
lv_obj_clean(scrl);
}
/*======================
* Add/remove functions
*=====================*/
/**
* Add a new tab with the given name
* @param tabview pointer to Tab view object where to ass the new tab
* @param name the text on the tab button
* @return pointer to the created page object (lv_page). You can create your content here
*/
lv_obj_t * lv_tabview_add_tab(lv_obj_t * tabview, const char * name)
{
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
/*Create the container page*/
lv_obj_t * h = lv_page_create(ext->content, NULL);
// gabor: 9. lv_obj_set_size(h, lv_obj_get_width(tabview), lv_obj_get_height(ext->content));
// seyyah: vertical page: lv_obj_set_size(h, lv_obj_get_width(ext->content), lv_obj_get_height(tabview));
lv_obj_set_size(h, lv_obj_get_width(tabview), lv_obj_get_height(ext->content));
lv_page_set_sb_mode(h, LV_SB_MODE_AUTO);
lv_page_set_style(h, LV_PAGE_STYLE_BG, &lv_style_transp);
lv_page_set_style(h, LV_PAGE_STYLE_SCRL, &lv_style_transp);
if(page_signal == NULL) page_signal = lv_obj_get_signal_cb(h);
if(page_scrl_signal == NULL) page_scrl_signal = lv_obj_get_signal_cb(lv_page_get_scrl(h));
lv_obj_set_signal_cb(h, tabpage_signal);
lv_obj_set_signal_cb(lv_page_get_scrl(h), tabpage_scrl_signal);
/*Extend the button matrix map with the new name*/
char * name_dm;
name_dm = lv_mem_alloc(strlen(name) + 1); /*+1 for the the closing '\0' */
lv_mem_assert(name_dm);
if(name_dm == NULL) return NULL;
strcpy(name_dm, name);
ext->tab_cnt++;
// gabor: 10. ext->tab_name_ptr = lv_mem_realloc(ext->tab_name_ptr, sizeof(char *) * (ext->tab_cnt + 1));
ext->tab_name_ptr = lv_mem_realloc(ext->tab_name_ptr, sizeof(char *) * (ext->tab_cnt * 2));
lv_mem_assert(ext->tab_name_ptr);
if(ext->tab_name_ptr == NULL) return NULL;
/* gabor: 11.
* ext->tab_name_ptr[ext->tab_cnt - 1] = name_dm;
* ext->tab_name_ptr[ext->tab_cnt] = "";
*/
if(ext->tab_cnt == 1) {
ext->tab_name_ptr[0] = name_dm;
ext->tab_name_ptr[1] = "";
} else {
ext->tab_name_ptr[ext->tab_cnt * 2 - 3] = "\n";
ext->tab_name_ptr[ext->tab_cnt * 2 - 2] = name_dm;
ext->tab_name_ptr[ext->tab_cnt * 2 - 1] = "";
}
/* The button matrix's map still points to the old `tab_name_ptr` which might be freed by
* `lv_mem_realloc`. So make its current map invalid*/
lv_btnm_ext_t * btnm_ext = lv_obj_get_ext_attr(ext->btns);
btnm_ext->map_p = NULL;
lv_btnm_set_map(ext->btns, ext->tab_name_ptr);
lv_btnm_set_btn_ctrl(ext->btns, ext->tab_cur, LV_BTNM_CTRL_NO_REPEAT, true);
/*Modify the indicator size*/
const lv_style_t * style_tabs = lv_obj_get_style(ext->btns);
/* gabor: 12.
* lv_coord_t indic_width =
* (lv_obj_get_width(tabview) - style_tabs->body.padding.inner * (ext->tab_cnt - 1) -
* style_tabs->body.padding.left - style_tabs->body.padding.right) /
* ext->tab_cnt;
*
* lv_obj_set_width(ext->indic, indic_width);
* lv_obj_set_x(ext->indic, indic_width * ext->tab_cur +
* style_tabs->body.padding.inner * ext->tab_cur +
* style_tabs->body.padding.left);
*/
lv_coord_t max_h = lv_obj_get_height(ext->btns) - style_tabs->body.padding.top - style_tabs->body.padding.bottom;
lv_coord_t btn_h = max_h - ((ext->tab_cnt - 1) * style_tabs->body.padding.inner);
btn_h = btn_h / ext->tab_cnt;
btn_h--; /*-1 because e.g. height = 100 means 101 pixels (0..100)*/
lv_coord_t act_y = style_tabs->body.padding.top + ext->tab_cur * (btn_h + style_tabs->body.padding.inner);
lv_obj_set_height(ext->indic, btn_h);
lv_obj_set_y(ext->indic, act_y);
/*Set the first btn as active*/
if(ext->tab_cnt == 1) {
ext->tab_cur = 0;
tabview_realign(tabview); /*To set the proper btns height*/
}
lv_tabview_set_tab_act(tabview, ext->tab_cur, false);
return h;
}
/*=====================
* Setter functions
*====================*/
/**
* Set a new tab
* @param tabview pointer to Tab view object
* @param id index of a tab to load
* @param anim_en true: set with sliding animation; false: set immediately
*/
void lv_tabview_set_tab_act(lv_obj_t * tabview, uint16_t id, bool anim_en)
{
#if LV_USE_ANIMATION == 0
anim_en = false;
#endif
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
const lv_style_t * style = lv_obj_get_style(ext->content);
lv_res_t res = LV_RES_OK;
if(id >= ext->tab_cnt) id = ext->tab_cnt - 1;
if(id != ext->tab_cur) res = lv_event_send(tabview, LV_EVENT_SELECTED, &id);
if(res != LV_RES_OK) return;
lv_btnm_set_btn_ctrl(ext->btns, ext->tab_cur, LV_BTNM_CTRL_TGL_STATE, false);
ext->tab_cur = id;
// gabor: 13.
// lv_coord_t cont_x = -(lv_obj_get_width(tabview) * id + style->body.padding.inner * id +
// style->body.padding.left);
// seyyah: vertical page: lv_coord_t cont_y = -(lv_obj_get_height(tabview) * id + style->body.padding.inner * id +
// style->body.padding.top);
lv_coord_t cont_x = -((lv_obj_get_width(tabview) - lv_obj_get_width(ext->btns)) * id + style->body.padding.inner * id +
style->body.padding.left) + lv_obj_get_width(ext->btns);
if(ext->anim_time == 0 || anim_en == false) {
// gabor: 14. lv_obj_set_x(ext->content, cont_x);
// seyyah: vertical page: lv_obj_set_y(ext->content, cont_y);
lv_obj_set_x(ext->content, cont_x);
} else {
#if LV_USE_ANIMATION
lv_anim_t a;
a.var = ext->content;
/* gabor: 15.
* a.start = lv_obj_get_x(ext->content);
* a.end = cont_x;
* a.fp = (lv_anim_fp_t)lv_obj_set_x;
*/
/* seyyah: vertical page:
* a.start = lv_obj_get_y(ext->content);
* a.end = cont_y;
* a.fp = (lv_anim_fp_t)lv_obj_set_y;
*/
a.start = lv_obj_get_x(ext->content);
a.end = cont_x;
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;
lv_anim_create(&a);
#endif
}
/*Move the indicator*/
// gabor: 16. lv_coord_t indic_width = lv_obj_get_width(ext->indic);
lv_coord_t indic_height = lv_obj_get_height(ext->indic);
const lv_style_t * tabs_style = lv_obj_get_style(ext->btns);
/* gabor: 17.
* lv_coord_t indic_x =
* indic_width * id + tabs_style->body.padding.inner * id + tabs_style->body.padding.left;
*/
lv_coord_t indic_y = tabs_style->body.padding.top + id * (indic_height + tabs_style->body.padding.inner);
if(ext->anim_time == 0 || anim_en == false) {
// gabor: 18. lv_obj_set_x(ext->indic, indic_x);
lv_obj_set_y(ext->indic, indic_y);
} else {
#if LV_USE_ANIMATION
lv_anim_t a;
a.var = ext->indic;
/* gabor: 19.
* a.start = lv_obj_get_x(ext->indic);
* a.end = indic_x;
* a.fp = (lv_anim_fp_t)lv_obj_set_x;
*/
a.start = lv_obj_get_y(ext->indic);
a.end = indic_y;
a.fp = (lv_anim_fp_t)lv_obj_set_y;
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;
lv_anim_create(&a);
#endif
}
lv_btnm_set_btn_ctrl(ext->btns, ext->tab_cur, LV_BTNM_CTRL_TGL_STATE, true);
}
/**
* Enable horizontal sliding with touch pad
* @param tabview pointer to Tab view object
* @param en true: enable sliding; false: disable sliding
*/
void lv_tabview_set_sliding(lv_obj_t * tabview, bool en)
{
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
ext->slide_enable = en == false ? 0 : 1;
}
/**
* Set the animation time of tab view when a new tab is loaded
* @param tabview pointer to Tab view object
* @param anim_time_ms time of animation in milliseconds
*/
void lv_tabview_set_anim_time(lv_obj_t * tabview, uint16_t anim_time)
{
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
#if LV_USE_ANIMATION == 0
anim_time = 0;
#endif
ext->anim_time = anim_time;
}
/**
* Set the style of a tab view
* @param tabview pointer to a tan view object
* @param type which style should be set
* @param style pointer to the new style
*/
void lv_tabview_set_style(lv_obj_t * tabview, lv_tabview_style_t type, const lv_style_t * style)
{
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
switch(type) {
case LV_TABVIEW_STYLE_BG: lv_obj_set_style(tabview, style); break;
case LV_TABVIEW_STYLE_BTN_BG:
lv_btnm_set_style(ext->btns, LV_BTNM_STYLE_BG, style);
tabview_realign(tabview);
break;
case LV_TABVIEW_STYLE_BTN_REL:
lv_btnm_set_style(ext->btns, LV_BTNM_STYLE_BTN_REL, style);
tabview_realign(tabview);
break;
case LV_TABVIEW_STYLE_BTN_PR:
lv_btnm_set_style(ext->btns, LV_BTNM_STYLE_BTN_PR, style);
break;
case LV_TABVIEW_STYLE_BTN_TGL_REL:
lv_btnm_set_style(ext->btns, LV_BTNM_STYLE_BTN_TGL_REL, style);
break;
case LV_TABVIEW_STYLE_BTN_TGL_PR:
lv_btnm_set_style(ext->btns, LV_BTNM_STYLE_BTN_TGL_PR, style);
break;
case LV_TABVIEW_STYLE_INDIC:
lv_obj_set_style(ext->indic, style);
// gabor: 8. lv_obj_set_height(ext->indic, style->body.padding.inner);
lv_obj_set_width(ext->indic, style->body.padding.inner);
tabview_realign(tabview);
break;
}
}
/**
* Set the position of tab select buttons
* @param tabview pointer to a tan view object
* @param btns_pos which button position
*/
void lv_tabview_set_btns_pos(lv_obj_t * tabview, lv_tabview_btns_pos_t btns_pos)
{
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
ext->btns_pos = btns_pos;
tabview_realign(tabview);
}
/**
* Set whether tab buttons are hidden
* @param tabview pointer to a tab view object
* @param en whether tab buttons are hidden
*/
void lv_tabview_set_btns_hidden(lv_obj_t * tabview, bool en)
{
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
ext->btns_hide = en;
tabview_realign(tabview);
}
/*=====================
* Getter functions
*====================*/
/**
* Get the index of the currently active tab
* @param tabview pointer to Tab view object
* @return the active btn index
*/
uint16_t lv_tabview_get_tab_act(const lv_obj_t * tabview)
{
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
return ext->tab_cur;
}
/**
* Get the number of tabs
* @param tabview pointer to Tab view object
* @return btn count
*/
uint16_t lv_tabview_get_tab_count(const lv_obj_t * tabview)
{
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
return ext->tab_cnt;
}
/**
* Get the page (content area) of a tab
* @param tabview pointer to Tab view object
* @param id index of the btn (>= 0)
* @return pointer to page (lv_page) object
*/
lv_obj_t * lv_tabview_get_tab(const lv_obj_t * tabview, uint16_t id)
{
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
uint16_t i = 0;
lv_obj_t * page = lv_obj_get_child_back(ext->content, NULL);
while(page != NULL && i != id) {
i++;
page = lv_obj_get_child_back(ext->content, page);
}
if(i == id) return page;
return NULL;
}
/**
* Get horizontal sliding is enabled or not
* @param tabview pointer to Tab view object
* @return true: enable sliding; false: disable sliding
*/
bool lv_tabview_get_sliding(const lv_obj_t * tabview)
{
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
return ext->slide_enable ? true : false;
}
/**
* Get the animation time of tab view when a new tab is loaded
* @param tabview pointer to Tab view object
* @return time of animation in milliseconds
*/
uint16_t lv_tabview_get_anim_time(const lv_obj_t * tabview)
{
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
return ext->anim_time;
}
/**
* Get a style of a tab view
* @param tabview pointer to a ab view object
* @param type which style should be get
* @return style pointer to a style
*/
const lv_style_t * lv_tabview_get_style(const lv_obj_t * tabview, lv_tabview_style_t type)
{
const lv_style_t * style = NULL;
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
switch(type) {
case LV_TABVIEW_STYLE_BG: style = lv_obj_get_style(tabview); break;
case LV_TABVIEW_STYLE_BTN_BG: style = lv_btnm_get_style(ext->btns, LV_BTNM_STYLE_BG); break;
case LV_TABVIEW_STYLE_BTN_REL:
style = lv_btnm_get_style(ext->btns, LV_BTNM_STYLE_BTN_REL);
break;
case LV_TABVIEW_STYLE_BTN_PR:
style = lv_btnm_get_style(ext->btns, LV_BTNM_STYLE_BTN_PR);
break;
case LV_TABVIEW_STYLE_BTN_TGL_REL:
style = lv_btnm_get_style(ext->btns, LV_BTNM_STYLE_BTN_TGL_REL);
break;
case LV_TABVIEW_STYLE_BTN_TGL_PR:
style = lv_btnm_get_style(ext->btns, LV_BTNM_STYLE_BTN_TGL_PR);
break;
default: style = NULL; break;
}
return style;
}
/**
* Get position of tab select buttons
* @param tabview pointer to a ab view object
*/
lv_tabview_btns_pos_t lv_tabview_get_btns_pos(const lv_obj_t * tabview)
{
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
return ext->btns_pos;
}
/**
* Get whether tab buttons are hidden
* @param tabview pointer to a tab view object
* @return whether tab buttons are hidden
*/
bool lv_tabview_get_btns_hidden(const lv_obj_t * tabview)
{
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
return ext->btns_hide;
}
/**********************
* STATIC FUNCTIONS
**********************/
/**
* Signal function of the Tab view
* @param tabview pointer to a Tab view 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_tabview_signal(lv_obj_t * tabview, lv_signal_t sign, void * param)
{
lv_res_t res;
/* Include the ancient signal function */
res = ancestor_signal(tabview, sign, param);
if(res != LV_RES_OK) return res;
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
if(sign == LV_SIGNAL_CLEANUP) {
uint8_t i;
for(i = 0; ext->tab_name_ptr[i][0] != '\0'; i++) lv_mem_free(ext->tab_name_ptr[i]);
lv_mem_free(ext->tab_name_ptr);
ext->tab_name_ptr = NULL;
ext->btns = NULL; /*These objects were children so they are already invalid*/
ext->content = NULL;
} else if(sign == LV_SIGNAL_CORD_CHG) {
if(ext->content != NULL && (lv_obj_get_width(tabview) != lv_area_get_width(param) ||
lv_obj_get_height(tabview) != lv_area_get_height(param))) {
tabview_realign(tabview);
}
} else if(sign == LV_SIGNAL_RELEASED) {
/*If released by a KEYPAD or ENCODER then really the tab buttons should be released.
* So simulate a CLICK on the tab buttons*/
lv_indev_t * indev = lv_indev_get_act();
lv_indev_type_t indev_type = lv_indev_get_type(indev);
if(indev_type == LV_INDEV_TYPE_KEYPAD ||
(indev_type == LV_INDEV_TYPE_ENCODER &&
lv_group_get_editing(lv_obj_get_group(tabview)))) {
lv_event_send(ext->btns, LV_EVENT_CLICKED, lv_event_get_data());
}
} else if(sign == LV_SIGNAL_FOCUS || sign == LV_SIGNAL_DEFOCUS || sign == LV_SIGNAL_CONTROL) {
/* The button matrix is not in a group (the tab view is in it) but it should handle the
* group signals. So propagate the related signals to the button matrix manually*/
if(ext->btns) {
ext->btns->signal_cb(ext->btns, sign, param);
}
if(sign == LV_SIGNAL_FOCUS) {
lv_indev_type_t indev_type = lv_indev_get_type(lv_indev_get_act());
/*With ENCODER select the first button only in edit mode*/
if(indev_type == LV_INDEV_TYPE_ENCODER) {
#if LV_USE_GROUP
lv_group_t * g = lv_obj_get_group(tabview);
if(lv_group_get_editing(g)) {
lv_btnm_ext_t * btnm_ext = lv_obj_get_ext_attr(ext->btns);
btnm_ext->btn_id_pr = 0;
lv_obj_invalidate(ext->btns);
}
#endif
} else {
lv_btnm_ext_t * btnm_ext = lv_obj_get_ext_attr(ext->btns);
btnm_ext->btn_id_pr = 0;
lv_obj_invalidate(ext->btns);
}
}
} else if(sign == LV_SIGNAL_GET_EDITABLE) {
bool * editable = (bool *)param;
*editable = true;
} 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_tabview";
}
return res;
}
/**
* Signal function of a tab's page
* @param tab pointer to a tab page 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 tabpage_signal(lv_obj_t * tab_page, lv_signal_t sign, void * param)
{
lv_res_t res;
/* Include the ancient signal function */
res = page_signal(tab_page, sign, param);
if(res != LV_RES_OK) return res;
lv_obj_t * cont = lv_obj_get_parent(tab_page);
lv_obj_t * tabview = lv_obj_get_parent(cont);
if(lv_tabview_get_sliding(tabview) == false) return res;
if(sign == LV_SIGNAL_PRESSED) {
tabpage_pressed_handler(tabview, tab_page);
} else if(sign == LV_SIGNAL_PRESSING) {
tabpage_pressing_handler(tabview, tab_page);
} else if(sign == LV_SIGNAL_RELEASED || sign == LV_SIGNAL_PRESS_LOST) {
tabpage_press_lost_handler(tabview, tab_page);
}
return res;
}
/**
* Signal function of the tab page's scrollable object
* @param tab_scrl pointer to a tab page's scrollable 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 tabpage_scrl_signal(lv_obj_t * tab_scrl, lv_signal_t sign, void * param)
{
lv_res_t res;
/* Include the ancient signal function */
res = page_scrl_signal(tab_scrl, sign, param);
if(res != LV_RES_OK) return res;
lv_obj_t * tab_page = lv_obj_get_parent(tab_scrl);
lv_obj_t * cont = lv_obj_get_parent(tab_page);
lv_obj_t * tabview = lv_obj_get_parent(cont);
if(lv_tabview_get_sliding(tabview) == false) return res;
if(sign == LV_SIGNAL_PRESSED) {
tabpage_pressed_handler(tabview, tab_page);
} else if(sign == LV_SIGNAL_PRESSING) {
tabpage_pressing_handler(tabview, tab_page);
} else if(sign == LV_SIGNAL_RELEASED || sign == LV_SIGNAL_PRESS_LOST) {
tabpage_press_lost_handler(tabview, tab_page);
}
return res;
}
/**
* Called when a tab's page or scrollable object is pressed
* @param tabview pointer to the btn view object
* @param tabpage pointer to the page of a btn
*/
static void tabpage_pressed_handler(lv_obj_t * tabview, lv_obj_t * tabpage)
{
(void)tabpage;
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
lv_indev_t * indev = lv_indev_get_act();
lv_indev_get_point(indev, &ext->point_last);
}
/**
* Called when a tab's page or scrollable object is being pressed
* @param tabview pointer to the btn view object
* @param tabpage pointer to the page of a btn
*/
static void tabpage_pressing_handler(lv_obj_t * tabview, lv_obj_t * tabpage)
{
// REFACTOR: seyyah
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
lv_indev_t * indev = lv_indev_get_act();
lv_point_t point_act;
lv_indev_get_point(indev, &point_act);
lv_coord_t x_diff = point_act.x - ext->point_last.x;
lv_coord_t y_diff = point_act.y - ext->point_last.y;
if(!ext->scroll_ver &&
(x_diff >= LV_INDEV_DEF_DRAG_LIMIT || x_diff <= -LV_INDEV_DEF_DRAG_LIMIT)) {
ext->draging = 1;
/*Check if the page is on the edge */
if((lv_page_on_edge(tabpage, LV_PAGE_EDGE_LEFT) && x_diff > 0) ||
(lv_page_on_edge(tabpage, LV_PAGE_EDGE_RIGHT) && x_diff < 0)) {
if(ext->drag_hor == 0) {
ext->point_last.x = point_act.x;
ext->point_last.y = point_act.y;
}
ext->drag_hor = 1;
lv_obj_set_drag(lv_page_get_scrl(tabpage), false);
} else if(ext->drag_hor == 0) {
ext->drag_hor = 0;
}
} else if(y_diff >= LV_INDEV_DEF_DRAG_LIMIT || y_diff <= -LV_INDEV_DEF_DRAG_LIMIT) {
ext->drag_hor = 0;
ext->draging = 1;
ext->scroll_ver = 1;
} else
ext->draging = 0;
if(ext->drag_hor) {
lv_obj_set_x(ext->content, lv_obj_get_x(ext->content) + point_act.x - ext->point_last.x);
ext->point_last.x = point_act.x;
ext->point_last.y = point_act.y;
/*Move the indicator*/
const lv_style_t * tabs_style = lv_obj_get_style(ext->btns);
/* gabor: 25.
* lv_coord_t indic_width = lv_obj_get_width(ext->indic);
* const lv_style_t * indic_style = lv_obj_get_style(ext->indic);
* lv_coord_t p = ((tabpage->coords.x1 - tabview->coords.x1) *
* (indic_width + tabs_style->body.padding.inner)) /
* lv_obj_get_width(tabview);
*
* lv_obj_set_x(ext->indic, indic_width * ext->tab_cur +
* tabs_style->body.padding.inner * ext->tab_cur +
* indic_style->body.padding.left - p);
*/
lv_coord_t indic_height = lv_obj_get_height(ext->indic);
lv_coord_t indic_y = tabs_style->body.padding.top +
ext->tab_cur * (indic_height + tabs_style->body.padding.inner);
lv_obj_set_y(ext->indic, indic_y);
}
}
/**
* Called when a tab's page or scrollable object is released or the press id lost
* @param tabview pointer to the btn view object
* @param tabpage pointer to the page of a btn
*/
static void tabpage_press_lost_handler(lv_obj_t * tabview, lv_obj_t * tabpage)
{
// REFACTOR: seyyah
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
ext->drag_hor = 0;
ext->draging = 0;
ext->scroll_ver = 0;
lv_obj_set_drag(lv_page_get_scrl(tabpage), true);
lv_indev_t * indev = lv_indev_get_act();
lv_point_t point_act;
lv_indev_get_point(indev, &point_act);
lv_point_t vect;
lv_indev_get_vect(indev, &vect);
lv_coord_t x_predict = 0;
while(vect.x != 0) {
x_predict += vect.x;
vect.x = vect.x * (100 - LV_INDEV_DEF_DRAG_THROW) / 100;
}
lv_coord_t page_x1 = tabpage->coords.x1 - tabview->coords.x1 + x_predict;
lv_coord_t page_x2 = page_x1 + lv_obj_get_width(tabpage);
lv_coord_t treshold = lv_obj_get_width(tabview) / 2;
uint16_t tab_cur = ext->tab_cur;
if(page_x1 > treshold) {
if(tab_cur != 0) tab_cur--;
} else if(page_x2 < treshold) {
if(tab_cur < ext->tab_cnt - 1) tab_cur++;
}
lv_tabview_set_tab_act(tabview, tab_cur, true);
}
/**
* Called when a tab button is clicked
* @param tab_btnm pointer to the tab's button matrix object
* @param event type of the event
*/
static void tab_btnm_event_cb(lv_obj_t * tab_btnm, lv_event_t event)
{
if(event != LV_EVENT_CLICKED) return;
uint16_t btn_id = lv_btnm_get_active_btn(tab_btnm);
if(btn_id == LV_BTNM_BTN_NONE) return;
lv_btnm_set_btn_ctrl_all(tab_btnm, LV_BTNM_CTRL_TGL_STATE, false);
lv_btnm_set_btn_ctrl(tab_btnm, btn_id, LV_BTNM_CTRL_TGL_STATE, true);
lv_obj_t * tab = lv_obj_get_parent(tab_btnm);
lv_tabview_set_tab_act(tab, btn_id, true);
}
/**
* Realign and resize the elements of Tab view
* @param tabview pointer to a Tab view object
*/
static void tabview_realign(lv_obj_t * tabview)
{
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
lv_obj_set_width(ext->btns, lv_obj_get_width(tabview));
if(ext->btns_hide) {
lv_obj_set_hidden(ext->btns, true);
lv_obj_set_hidden(ext->indic, true);
lv_obj_set_height(ext->content, lv_obj_get_height(tabview));
lv_obj_align(ext->content, NULL, LV_ALIGN_IN_TOP_LEFT, 0, 0);
} else if(ext->tab_cnt != 0) {
lv_obj_set_hidden(ext->btns, false);
lv_obj_set_hidden(ext->indic, false);
const lv_style_t * style_btn_bg = lv_tabview_get_style(tabview, LV_TABVIEW_STYLE_BTN_BG);
const lv_style_t * style_btn_rel = lv_tabview_get_style(tabview, LV_TABVIEW_STYLE_BTN_REL);
// +seyyah: ???
lv_obj_set_height(ext->btns, lv_obj_get_height(tabview));
/*Set the indicator widths*/
/* gabor: 20.
* lv_coord_t indic_width =
* (lv_obj_get_width(tabview) - style_btn_bg->body.padding.inner * (ext->tab_cnt - 1) -
* style_btn_bg->body.padding.left - style_btn_bg->body.padding.right) /
* ext->tab_cnt;
* lv_obj_set_width(ext->indic, indic_width);
*/
lv_coord_t max_h = lv_obj_get_height(ext->btns) - style_btn_bg->body.padding.top - style_btn_bg->body.padding.bottom;
lv_coord_t btn_h = max_h - ((ext->tab_cnt - 1) * style_btn_bg->body.padding.inner);
btn_h = btn_h / ext->tab_cnt;
btn_h--; /*-1 because e.g. height = 100 means 101 pixels (0..100)*/
lv_obj_set_height(ext->indic, btn_h);
// +seyyah: ???: lv_coord_t act_y = style_tabs->body.padding.top + ext->tab_cur * (btn_h + style_tabs->body.padding.inner);
// +seyyah: ???: lv_obj_set_y(ext->indic, act_y);
/*Set the tabs height*/
/* gabor: 21.
* lv_coord_t btns_height = lv_font_get_height(style_btn_rel->text.font) +
* style_btn_rel->body.padding.top +
* style_btn_rel->body.padding.bottom +
* style_btn_bg->body.padding.top + style_btn_bg->body.padding.bottom;
* lv_obj_set_height(ext->btns, btns_height);
*/
lv_coord_t btns_width = lv_font_get_width(style_btn_rel->text.font, 0x0041) +
style_btn_rel->body.padding.left +
style_btn_rel->body.padding.right +
style_btn_bg->body.padding.left + style_btn_bg->body.padding.right;
lv_obj_set_width(ext->btns, btns_width);
// gabor: 22. lv_obj_set_height(ext->content, lv_obj_get_height(tabview) - lv_obj_get_height(ext->btns));
// seyyah: vertical page: lv_obj_set_width(ext->content, lv_obj_get_width(tabview) - lv_obj_get_width(ext->btns));
lv_obj_set_height(ext->content, lv_obj_get_height(tabview));
switch(ext->btns_pos) {
case LV_TABVIEW_BTNS_POS_TOP:
lv_obj_align(ext->btns, NULL, LV_ALIGN_IN_TOP_LEFT, 0, 0);
lv_obj_align(ext->content, ext->btns, LV_ALIGN_OUT_BOTTOM_LEFT, 0, 0);
break;
case LV_TABVIEW_BTNS_POS_BOTTOM:
lv_obj_align(ext->content, NULL, LV_ALIGN_IN_TOP_LEFT, 0, 0);
lv_obj_align(ext->btns, ext->content, LV_ALIGN_OUT_BOTTOM_LEFT, 0, 0);
break;
case LV_TABVIEW_BTNS_POS_LEFT:
lv_obj_align(ext->btns, NULL, LV_ALIGN_IN_TOP_LEFT, 0, 0);
// seyyah: vertical page: lv_obj_align(ext->content, tabview, LV_ALIGN_IN_TOP_RIGHT, 0, 0);
lv_obj_align(ext->content, tabview, LV_ALIGN_IN_TOP_LEFT, lv_obj_get_width(ext->btns), 0);
break;
}
}
lv_obj_t * pages = lv_obj_get_child(ext->content, NULL);
while(pages != NULL) {
if(lv_obj_get_signal_cb(pages) ==
tabpage_signal) { /*Be sure adjust only the pages (user can other things)*/
// gabor: 23. lv_obj_set_size(pages, lv_obj_get_width(tabview), lv_obj_get_height(ext->content));
// seyyah: vertical page: lv_obj_set_size(pages, lv_obj_get_width(ext->content), lv_obj_get_height(tabview));
lv_obj_set_size(
pages,
lv_obj_get_width(tabview) - lv_obj_get_width(ext->btns),
lv_obj_get_height(ext->content)
);
}
pages = lv_obj_get_child(ext->content, pages);
}
if(!ext->btns_hide) {
// gabor: 24. lv_obj_align(ext->indic, ext->btns, LV_ALIGN_IN_BOTTOM_LEFT, 0, 0);
lv_obj_align(ext->indic, ext->btns, LV_ALIGN_IN_TOP_RIGHT, 0, 0);
}
lv_tabview_set_tab_act(tabview, ext->tab_cur, false);
}
#endif
Raw
tabview.h
/**
* @file lv_tabview.h
*
*/
#ifndef LV_TABVIEW_H
#define LV_TABVIEW_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#ifdef LV_CONF_INCLUDE_SIMPLE
#include "lv_conf.h"
#else
#include "../../../lv_conf.h"
#endif
#if LV_USE_TABVIEW != 0
/*Testing of dependencies*/
#if LV_USE_BTNM == 0
#error "lv_tabview: lv_btnm is required. Enable it in lv_conf.h (LV_USE_BTNM 1) "
#endif
#if LV_USE_PAGE == 0
#error "lv_tabview: lv_page is required. Enable it in lv_conf.h (LV_USE_PAGE 1) "
#endif
#include "../lv_core/lv_obj.h"
#include "../lv_objx/lv_win.h"
#include "../lv_objx/lv_page.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
enum {
LV_TABVIEW_BTNS_POS_TOP,
LV_TABVIEW_BTNS_POS_BOTTOM,
LV_TABVIEW_BTNS_POS_LEFT
};
typedef uint8_t lv_tabview_btns_pos_t;
/*Data of tab*/
typedef struct
{
/*Ext. of ancestor*/
/*New data for this type */
lv_obj_t * btns;
lv_obj_t * indic;
lv_obj_t * content; /*A rectangle to show the current tab*/
const char ** tab_name_ptr;
lv_point_t point_last;
uint16_t tab_cur;
uint16_t tab_cnt;
uint16_t anim_time;
uint8_t slide_enable : 1; /*1: enable horizontal sliding by touch pad*/
uint8_t draging : 1;
uint8_t drag_hor : 1;
uint8_t scroll_ver : 1;
uint8_t btns_hide : 1;
lv_tabview_btns_pos_t btns_pos : 2;
} lv_tabview_ext_t;
enum {
LV_TABVIEW_STYLE_BG,
LV_TABVIEW_STYLE_INDIC,
LV_TABVIEW_STYLE_BTN_BG,
LV_TABVIEW_STYLE_BTN_REL,
LV_TABVIEW_STYLE_BTN_PR,
LV_TABVIEW_STYLE_BTN_TGL_REL,
LV_TABVIEW_STYLE_BTN_TGL_PR,
};
typedef uint8_t lv_tabview_style_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Create a Tab view object
* @param par pointer to an object, it will be the parent of the new tab
* @param copy pointer to a tab object, if not NULL then the new object will be copied from it
* @return pointer to the created tab
*/
lv_obj_t * lv_tabview_create(lv_obj_t * par, const lv_obj_t * copy);
/**
* Delete all children of the scrl object, without deleting scrl child.
* @param obj pointer to an object
*/
void lv_tabview_clean(lv_obj_t * obj);
/*======================
* Add/remove functions
*=====================*/
/**
* Add a new tab with the given name
* @param tabview pointer to Tab view object where to ass the new tab
* @param name the text on the tab button
* @return pointer to the created page object (lv_page). You can create your content here
*/
lv_obj_t * lv_tabview_add_tab(lv_obj_t * tabview, const char * name);
/*=====================
* Setter functions
*====================*/
/**
* Set a new tab
* @param tabview pointer to Tab view object
* @param id index of a tab to load
* @param anim_en true: set with sliding animation; false: set immediately
*/
void lv_tabview_set_tab_act(lv_obj_t * tabview, uint16_t id, bool anim_en);
/**
* Enable horizontal sliding with touch pad
* @param tabview pointer to Tab view object
* @param en true: enable sliding; false: disable sliding
*/
void lv_tabview_set_sliding(lv_obj_t * tabview, bool en);
/**
* Set the animation time of tab view when a new tab is loaded
* @param tabview pointer to Tab view object
* @param anim_time time of animation in milliseconds
*/
void lv_tabview_set_anim_time(lv_obj_t * tabview, uint16_t anim_time);
/**
* Set the style of a tab view
* @param tabview pointer to a tan view object
* @param type which style should be set
* @param style pointer to the new style
*/
void lv_tabview_set_style(lv_obj_t * tabview, lv_tabview_style_t type, const lv_style_t * style);
/**
* Set the position of tab select buttons
* @param tabview pointer to a tab view object
* @param btns_pos which button position
*/
void lv_tabview_set_btns_pos(lv_obj_t * tabview, lv_tabview_btns_pos_t btns_pos);
/**
* Set whether tab buttons are hidden
* @param tabview pointer to a tab view object
* @param en whether tab buttons are hidden
*/
void lv_tabview_set_btns_hidden(lv_obj_t * tabview, bool en);
/*=====================
* Getter functions
*====================*/
/**
* Get the index of the currently active tab
* @param tabview pointer to Tab view object
* @return the active tab index
*/
uint16_t lv_tabview_get_tab_act(const lv_obj_t * tabview);
/**
* Get the number of tabs
* @param tabview pointer to Tab view object
* @return tab count
*/
uint16_t lv_tabview_get_tab_count(const lv_obj_t * tabview);
/**
* Get the page (content area) of a tab
* @param tabview pointer to Tab view object
* @param id index of the tab (>= 0)
* @return pointer to page (lv_page) object
*/
lv_obj_t * lv_tabview_get_tab(const lv_obj_t * tabview, uint16_t id);
/**
* Get horizontal sliding is enabled or not
* @param tabview pointer to Tab view object
* @return true: enable sliding; false: disable sliding
*/
bool lv_tabview_get_sliding(const lv_obj_t * tabview);
/**
* Get the animation time of tab view when a new tab is loaded
* @param tabview pointer to Tab view object
* @return time of animation in milliseconds
*/
uint16_t lv_tabview_get_anim_time(const lv_obj_t * tabview);
/**
* Get a style of a tab view
* @param tabview pointer to a ab view object
* @param type which style should be get
* @return style pointer to a style
*/
const lv_style_t * lv_tabview_get_style(const lv_obj_t * tabview, lv_tabview_style_t type);
/**
* Get position of tab select buttons
* @param tabview pointer to a ab view object
*/
lv_tabview_btns_pos_t lv_tabview_get_btns_pos(const lv_obj_t * tabview);
/**
* Get whether tab buttons are hidden
* @param tabview pointer to a tab view object
* @return whether tab buttons are hidden
*/
bool lv_tabview_get_btns_hidden(const lv_obj_t * tabview);
/**********************
* MACROS
**********************/
#endif /*LV_USE_TABVIEW*/
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /*LV_TABVIEW_H*/
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