/*
* Copyright (c) 2019 CTCaer
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file lv_tab.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_tabview.h"
#if USE_LV_TABVIEW != 0
#include "lv_btnm.h"
#include "../lv_themes/lv_theme.h"
#include "../lv_misc/lv_anim.h"
/*********************
* DEFINES
*********************/
#if USE_LV_ANIMATION
# ifndef LV_TABVIEW_ANIM_TIME
# define LV_TABVIEW_ANIM_TIME 300 /*Animation time of focusing to the a list element [ms] (0: no animation) */
# endif
#else
# undef LV_TABVIEW_ANIM_TIME
# define LV_TABVIEW_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 lv_res_t tab_btnm_action(lv_obj_t * tab_btnm, const char * tab_name);
static void tabview_realign(lv_obj_t * tabview);
/**********************
* STATIC VARIABLES
**********************/
static lv_signal_func_t ancestor_signal;
static lv_signal_func_t page_signal;
static lv_signal_func_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_func(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->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->tab_load_action = NULL;
ext->btns_pos = LV_TABVIEW_BTNS_POS_TOP;
ext->anim_time = LV_TABVIEW_ANIM_TIME;
ext->btns_hide = 0;
/*The signal and design functions are not copied so set them here*/
lv_obj_set_signal_func(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;
lv_obj_set_size(new_tabview, LV_HOR_RES, LV_VER_RES);
ext->btns = lv_btnm_create(new_tabview, NULL);
lv_obj_set_height(ext->btns, 3 * LV_DPI / 4);
lv_btnm_set_map(ext->btns, tab_def);
lv_btnm_set_action(ext->btns, tab_btnm_action);
lv_btnm_set_toggle(ext->btns, true, 0);
ext->indic = lv_obj_create(ext->btns, NULL);
lv_obj_set_width(ext->indic, LV_DPI);
lv_obj_align(ext->indic, ext->btns, LV_ALIGN_IN_BOTTOM_LEFT, 0, 0);
lv_obj_set_click(ext->indic, false);
ext->content = lv_cont_create(new_tabview, NULL);
lv_cont_set_fit(ext->content, true, false);
lv_cont_set_layout(ext->content, LV_LAYOUT_ROW_T);
lv_cont_set_style(ext->content, &lv_style_transp_tight);
lv_obj_set_height(ext->content, LV_VER_RES - lv_obj_get_height(ext->btns));
lv_obj_align(ext->content, ext->btns, LV_ALIGN_OUT_BOTTOM_LEFT, 0, 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->tabview.bg);
lv_tabview_set_style(new_tabview, LV_TABVIEW_STYLE_INDIC, th->tabview.indic);
lv_tabview_set_style(new_tabview, LV_TABVIEW_STYLE_BTN_BG, th->tabview.btn.bg);
lv_tabview_set_style(new_tabview, LV_TABVIEW_STYLE_BTN_REL, th->tabview.btn.rel);
lv_tabview_set_style(new_tabview, LV_TABVIEW_STYLE_BTN_PR, th->tabview.btn.pr);
lv_tabview_set_style(new_tabview, LV_TABVIEW_STYLE_BTN_TGL_REL, th->tabview.btn.tgl_rel);
lv_tabview_set_style(new_tabview, LV_TABVIEW_STYLE_BTN_TGL_PR, th->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_load_action = copy_ext->tab_load_action;
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);
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_OFF); // Important!
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_func(h);
if(page_scrl_signal == NULL) page_scrl_signal = lv_obj_get_signal_func(lv_page_get_scrl(h));
lv_obj_set_signal_func(h, tabpage_signal);
lv_obj_set_signal_func(lv_page_get_scrl(h), tabpage_scrl_signal);
/*Extend the button matrix map with the new name*/
char * name_dm;
if((name[0] & LV_BTNM_CTRL_MASK) == LV_BTNM_CTRL_CODE) { /*If control byte presented let is*/
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);
} else { /*Set a no long press control byte is not presented*/
name_dm = lv_mem_alloc(strlen(name) + 2); /*+1 for the the closing '\0' and +1 for the control byte */
lv_mem_assert(name_dm);
if(name_dm == NULL) return NULL;
name_dm[0] = '\221';
strcpy(&name_dm[1], name);
}
ext->tab_cnt++;
ext->tab_name_ptr = lv_mem_realloc(ext->tab_name_ptr, sizeof(char *) * (ext->tab_cnt + 1));
lv_mem_assert(ext->tab_name_ptr);
if(ext->tab_name_ptr == NULL) return NULL;
ext->tab_name_ptr[ext->tab_cnt - 1] = name_dm;
ext->tab_name_ptr[ext->tab_cnt] = "";
lv_btnm_set_map(ext->btns, ext->tab_name_ptr);
/*Modify the indicator size*/
lv_style_t * style_tabs = lv_obj_get_style(ext->btns);
lv_coord_t indic_width = (lv_obj_get_width(tabview) - style_tabs->body.padding.inner * (ext->tab_cnt - 1) - 2 * style_tabs->body.padding.hor) / 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.hor);
/*Set the first btn as active*/
if(ext->tab_cnt == 1) {
ext->tab_cur = 0;
lv_tabview_set_tab_act(tabview, 0, false);
tabview_realign(tabview); /*To set the proper btns height*/
}
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 USE_LV_ANIMATION == 0
anim_en = false;
#endif
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
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(ext->tab_load_action && id != ext->tab_cur) res = ext->tab_load_action(tabview, id);
if(res != LV_RES_OK) return; /*Prevent the tab loading*/
ext->tab_cur = id;
lv_coord_t cont_x = -(lv_obj_get_width(tabview) * id + style->body.padding.inner * id + style->body.padding.hor);
if(ext->anim_time == 0 || anim_en == false) {
lv_obj_set_x(ext->content, cont_x);
} else {
#if USE_LV_ANIMATION
lv_anim_t a;
a.var = ext->content;
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*/
lv_coord_t indic_width = lv_obj_get_width(ext->indic);
lv_style_t * tabs_style = lv_obj_get_style(ext->btns);
lv_coord_t indic_x = indic_width * id + tabs_style->body.padding.inner * id + tabs_style->body.padding.hor;
if(ext->anim_time == 0 || anim_en == false) {
lv_obj_set_x(ext->indic, indic_x);
} else {
#if USE_LV_ANIMATION
lv_anim_t a;
a.var = ext->indic;
a.start = lv_obj_get_x(ext->indic);
a.end = indic_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
}
lv_btnm_set_toggle(ext->btns, true, ext->tab_cur);
}
/**
* Set an action to call when a tab is loaded (Good to create content only if required)
* lv_tabview_get_act() still gives the current (old) tab (to remove content from here)
* @param tabview pointer to a tabview object
* @param action pointer to a function to call when a btn is loaded
*/
void lv_tabview_set_tab_load_action(lv_obj_t * tabview, lv_tabview_action_t action)
{
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
ext->tab_load_action = action;
}
/**
* 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 USE_LV_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, 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);
lv_obj_set_height(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 the tab load action
* @param tabview pointer to a tabview object
* @param return the current btn load action
*/
lv_tabview_action_t lv_tabview_get_tab_load_action(const lv_obj_t * tabview)
{
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
return ext->tab_load_action;
}
/**
* 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
*/
lv_style_t * lv_tabview_get_style(const lv_obj_t * tabview, lv_tabview_style_t type)
{
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_FOCUS || sign == LV_SIGNAL_DEFOCUS || sign == LV_SIGNAL_CONTROLL) {
/* 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_func(ext->btns, sign, param);
}
if(sign == LV_SIGNAL_FOCUS) {
lv_hal_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 USE_LV_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)
{
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->draging == 0) {
if(x_diff >= LV_INDEV_DRAG_LIMIT || x_diff <= -LV_INDEV_DRAG_LIMIT) {
ext->drag_hor = 1;
ext->draging = 1;
lv_obj_set_drag(lv_page_get_scrl(tabpage), false);
} else if(y_diff >= LV_INDEV_DRAG_LIMIT || y_diff <= -LV_INDEV_DRAG_LIMIT) {
ext->drag_hor = 0;
ext->draging = 1;
}
}
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*/
lv_coord_t indic_width = lv_obj_get_width(ext->indic);
lv_style_t * tabs_style = lv_obj_get_style(ext->btns);
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.hor - p);
}
}
/**
* 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)
{
lv_tabview_ext_t * ext = lv_obj_get_ext_attr(tabview);
ext->drag_hor = 0;
ext->draging = 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_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 released
* @param tab_btnm pointer to the tab's button matrix object
* @param id the id of the tab (>= 0)
* @return LV_ACTION_RES_OK because the button matrix in not deleted in the function
*/
static lv_res_t tab_btnm_action(lv_obj_t * tab_btnm, const char * tab_name)
{
lv_obj_t * tab = lv_obj_get_parent(tab_btnm);
const char ** tabs_map = lv_btnm_get_map(tab_btnm);
uint8_t i = 0;
while(tabs_map[i][0] != '\0') {
if(strcmp(&tabs_map[i][1], tab_name) == 0) break; /*[1] to skip the control byte*/
i++;
}
lv_tabview_set_tab_act(tab, i, true);
return LV_RES_OK;
}
/**
* 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);
lv_style_t * style_btn_bg = lv_tabview_get_style(tabview, LV_TABVIEW_STYLE_BTN_BG);
lv_style_t * style_btn_rel = lv_tabview_get_style(tabview, LV_TABVIEW_STYLE_BTN_REL);
/*Set the indicator widths*/
lv_coord_t indic_width = (lv_obj_get_width(tabview) - style_btn_bg->body.padding.inner * (ext->tab_cnt - 1) -
2 * style_btn_bg->body.padding.hor) / ext->tab_cnt;
lv_obj_set_width(ext->indic, indic_width);
/*Set the tabs height*/
lv_coord_t btns_height = lv_font_get_height(style_btn_rel->text.font) +
2 * style_btn_rel->body.padding.ver +
2 * style_btn_bg->body.padding.ver;
lv_obj_set_height(ext->btns, btns_height);
lv_obj_set_height(ext->content, lv_obj_get_height(tabview) - lv_obj_get_height(ext->btns));
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;
}
}
lv_obj_t * pages = lv_obj_get_child(ext->content, NULL);
while(pages != NULL) {
if(lv_obj_get_signal_func(pages) == tabpage_signal) { /*Be sure adjust only the pages (user can other things)*/
lv_obj_set_size(pages, lv_obj_get_width(tabview), lv_obj_get_height(ext->content));
}
pages = lv_obj_get_child(ext->content, pages);
}
if(!ext->btns_hide) {
lv_obj_align(ext->indic, ext->btns, LV_ALIGN_IN_BOTTOM_LEFT, 0, 0);
}
lv_tabview_set_tab_act(tabview, ext->tab_cur, false);
}
#endif