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LVGL 库提交

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wandering1
2026-08-30 08:57:07 +08:00
parent 26c9098630
commit e2f199c6bf
1056 changed files with 556743 additions and 45 deletions
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Lib/lvgl/src/widgets/tabview/lv_tabview.c
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/**
* @file lv_tabview.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_tabview_private.h"
#include "../../core/lv_obj_class_private.h"
#include "../../lvgl.h"
#if LV_USE_TABVIEW
#include "../../misc/lv_assert.h"
#include "../../indev/lv_indev_private.h"
/*********************
* DEFINES
*********************/
#define MY_CLASS (&lv_tabview_class)
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void lv_tabview_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj);
static void lv_tabview_event(const lv_obj_class_t * class_p, lv_event_t * e);
static void button_clicked_event_cb(lv_event_t * e);
static void cont_scroll_end_event_cb(lv_event_t * e);
/**********************
* STATIC VARIABLES
**********************/
const lv_obj_class_t lv_tabview_class = {
.constructor_cb = lv_tabview_constructor,
.event_cb = lv_tabview_event,
.width_def = LV_PCT(100),
.height_def = LV_PCT(100),
.base_class = &lv_obj_class,
.instance_size = sizeof(lv_tabview_t),
.name = "lv_tabview",
};
typedef struct {
lv_dir_t tab_pos;
int32_t tab_size;
} lv_tabview_create_info_t;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
lv_obj_t * lv_tabview_create(lv_obj_t * parent)
{
LV_LOG_INFO("begin");
lv_obj_t * obj = lv_obj_class_create_obj(&lv_tabview_class, parent);
lv_obj_class_init_obj(obj);
return obj;
}
lv_obj_t * lv_tabview_add_tab(lv_obj_t * obj, const char * name)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_obj_t * cont = lv_tabview_get_content(obj);
lv_obj_t * page = lv_obj_create(cont);
lv_obj_set_size(page, lv_pct(100), lv_pct(100));
lv_obj_t * tab_bar = lv_tabview_get_tab_bar(obj);
lv_obj_t * button = lv_button_create(tab_bar);
lv_obj_set_flex_grow(button, 1);
lv_obj_set_size(button, lv_pct(100), lv_pct(100));
lv_obj_add_event_cb(button, button_clicked_event_cb, LV_EVENT_CLICKED, NULL);
lv_group_t * g = lv_group_get_default();
if(g) lv_group_add_obj(g, button);
lv_obj_t * label = lv_label_create(button);
lv_label_set_text(label, name);
lv_obj_center(label);
uint32_t tab_idx = lv_obj_get_child_count(cont) - 1;
lv_tabview_t * tabview = (lv_tabview_t *)obj;
if(tab_idx == tabview->tab_cur) {
lv_tabview_set_active(obj, tab_idx, LV_ANIM_OFF);
}
return page;
}
void lv_tabview_rename_tab(lv_obj_t * obj, uint32_t idx, const char * new_name)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_obj_t * tab_bar = lv_tabview_get_tab_bar(obj);
lv_obj_t * button = lv_obj_get_child_by_type(tab_bar, idx, &lv_button_class);
lv_obj_t * label = lv_obj_get_child_by_type(button, 0, &lv_label_class);
lv_label_set_text(label, new_name);
}
void lv_tabview_set_active(lv_obj_t * obj, uint32_t idx, lv_anim_enable_t anim_en)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_tabview_t * tabview = (lv_tabview_t *)obj;
tabview->tab_cur = idx;
lv_obj_t * cont = lv_tabview_get_content(obj);
lv_obj_t * tab_bar = lv_tabview_get_tab_bar(obj);
uint32_t tab_cnt = lv_tabview_get_tab_count(obj);
if(idx >= tab_cnt) return;
/*To be sure lv_obj_get_content_width will return valid value*/
if(cont == NULL) return;
lv_obj_update_layout(obj);
if((tabview->tab_pos & LV_DIR_VER) != 0) {
int32_t gap = lv_obj_get_style_pad_column(cont, LV_PART_MAIN);
int32_t w = lv_obj_get_content_width(cont);
if(lv_obj_get_style_base_dir(obj, LV_PART_MAIN) != LV_BASE_DIR_RTL) {
lv_obj_scroll_to_x(cont, idx * (gap + w), anim_en);
}
else {
int32_t id_rtl = -(int32_t)idx;
lv_obj_scroll_to_x(cont, (gap + w) * id_rtl, anim_en);
}
}
else {
int32_t gap = lv_obj_get_style_pad_row(cont, LV_PART_MAIN);
int32_t h = lv_obj_get_content_height(cont);
lv_obj_scroll_to_y(cont, idx * (gap + h), anim_en);
}
uint32_t i = 0;
lv_obj_t * button = lv_obj_get_child_by_type(tab_bar, i, &lv_button_class);
while(button) {
lv_obj_set_state(button, LV_STATE_CHECKED, i == idx);
i++;
button = lv_obj_get_child_by_type(tab_bar, (int32_t)i, &lv_button_class);
}
}
void lv_tabview_set_tab_bar_position(lv_obj_t * obj, lv_dir_t dir)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_tabview_t * tabview = (lv_tabview_t *)obj;
switch(dir) {
case LV_DIR_TOP:
lv_obj_set_flex_flow(obj, LV_FLEX_FLOW_COLUMN);
break;
case LV_DIR_BOTTOM:
lv_obj_set_flex_flow(obj, LV_FLEX_FLOW_COLUMN_REVERSE);
break;
case LV_DIR_LEFT:
lv_obj_set_flex_flow(obj, LV_FLEX_FLOW_ROW);
break;
case LV_DIR_RIGHT:
lv_obj_set_flex_flow(obj, LV_FLEX_FLOW_ROW_REVERSE);
break;
case LV_DIR_HOR:
case LV_DIR_VER:
case LV_DIR_ALL:
case LV_DIR_NONE:
break;
}
lv_obj_t * tab_bar = lv_tabview_get_tab_bar(obj);
lv_obj_t * cont = lv_tabview_get_content(obj);
switch(dir) {
case LV_DIR_TOP:
case LV_DIR_BOTTOM:
lv_obj_set_width(cont, LV_PCT(100));
lv_obj_set_flex_grow(cont, 1);
lv_obj_set_flex_flow(tab_bar, LV_FLEX_FLOW_ROW);
lv_obj_set_flex_flow(cont, LV_FLEX_FLOW_ROW);
lv_obj_set_scroll_snap_x(cont, LV_SCROLL_SNAP_CENTER);
lv_obj_set_scroll_snap_y(cont, LV_SCROLL_SNAP_NONE);
break;
case LV_DIR_LEFT:
case LV_DIR_RIGHT:
lv_obj_set_height(cont, LV_PCT(100));
lv_obj_set_flex_grow(cont, 1);
lv_obj_set_flex_flow(tab_bar, LV_FLEX_FLOW_COLUMN);
lv_obj_set_flex_flow(cont, LV_FLEX_FLOW_COLUMN);
lv_obj_set_scroll_snap_x(cont, LV_SCROLL_SNAP_NONE);
lv_obj_set_scroll_snap_y(cont, LV_SCROLL_SNAP_CENTER);
break;
case LV_DIR_HOR:
case LV_DIR_VER:
case LV_DIR_ALL:
case LV_DIR_NONE:
break;
}
bool was_ver = tabview->tab_pos & LV_DIR_VER;
bool now_ver = dir & LV_DIR_VER;
if(was_ver != now_ver) {
int32_t dpi = lv_display_get_dpi(lv_obj_get_display(obj));
if(now_ver) {
lv_obj_set_size(tab_bar, lv_pct(100), dpi / 2);
}
else {
lv_obj_set_size(tab_bar, dpi, lv_pct(100));
}
}
tabview->tab_pos = dir;
}
void lv_tabview_set_tab_bar_size(lv_obj_t * obj, int32_t size)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_tabview_t * tabview = (lv_tabview_t *)obj;
lv_obj_t * tab_bar = lv_tabview_get_tab_bar(obj);
if(tabview->tab_pos & LV_DIR_VER) {
lv_obj_set_height(tab_bar, size);
}
else {
lv_obj_set_width(tab_bar, size);
}
}
uint32_t lv_tabview_get_tab_active(lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_tabview_t * tabview = (lv_tabview_t *)obj;
return tabview->tab_cur;
}
uint32_t lv_tabview_get_tab_count(lv_obj_t * obj)
{
LV_ASSERT_OBJ(obj, MY_CLASS);
lv_obj_t * tab_bar = lv_tabview_get_tab_bar(obj);
return lv_obj_get_child_count_by_type(tab_bar, &lv_button_class);
}
lv_obj_t * lv_tabview_get_content(lv_obj_t * tv)
{
return lv_obj_get_child(tv, 1);
}
lv_obj_t * lv_tabview_get_tab_bar(lv_obj_t * tv)
{
return lv_obj_get_child(tv, 0);
}
/**********************
* STATIC FUNCTIONS
**********************/
static void lv_tabview_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
{
LV_UNUSED(class_p);
lv_tabview_t * tabview = (lv_tabview_t *)obj;
tabview->tab_pos = LV_DIR_NONE; /*Invalid value to apply the default TOP direction correctly*/
lv_obj_set_size(obj, LV_PCT(100), LV_PCT(100));
lv_obj_t * cont;
lv_obj_create(obj);
cont = lv_obj_create(obj);
lv_obj_set_flex_flow(cont, LV_FLEX_FLOW_ROW);
lv_obj_add_event_cb(cont, cont_scroll_end_event_cb, LV_EVENT_LAYOUT_CHANGED, NULL);
lv_obj_add_event_cb(cont, cont_scroll_end_event_cb, LV_EVENT_SCROLL_END, NULL);
lv_obj_set_scrollbar_mode(cont, LV_SCROLLBAR_MODE_OFF);
lv_tabview_set_tab_bar_position(obj, LV_DIR_TOP);
lv_obj_add_flag(cont, LV_OBJ_FLAG_SCROLL_ONE);
lv_obj_remove_flag(cont, LV_OBJ_FLAG_SCROLL_ON_FOCUS);
}
static void lv_tabview_event(const lv_obj_class_t * class_p, lv_event_t * e)
{
LV_UNUSED(class_p);
lv_result_t res = lv_obj_event_base(&lv_tabview_class, e);
if(res != LV_RESULT_OK) return;
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * target = lv_event_get_current_target(e);
if(code == LV_EVENT_SIZE_CHANGED) {
lv_tabview_set_active(target, lv_tabview_get_tab_active(target), LV_ANIM_OFF);
}
}
static void button_clicked_event_cb(lv_event_t * e)
{
lv_obj_t * button = lv_event_get_current_target(e);
lv_obj_t * tv = lv_obj_get_parent(lv_obj_get_parent(button));
int32_t idx = lv_obj_get_index_by_type(button, &lv_button_class);
lv_tabview_set_active(tv, idx, LV_ANIM_OFF);
}
static void cont_scroll_end_event_cb(lv_event_t * e)
{
lv_obj_t * cont = lv_event_get_current_target(e);
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * tv = lv_obj_get_parent(cont);
lv_tabview_t * tv_obj = (lv_tabview_t *)tv;
if(code == LV_EVENT_LAYOUT_CHANGED) {
lv_tabview_set_active(tv, lv_tabview_get_tab_active(tv), LV_ANIM_OFF);
}
else if(code == LV_EVENT_SCROLL_END) {
lv_indev_t * indev = lv_indev_active();
if(indev && indev->state == LV_INDEV_STATE_PRESSED) {
return;
}
lv_point_t p;
lv_obj_get_scroll_end(cont, &p);
int32_t t;
if((tv_obj->tab_pos & LV_DIR_VER) != 0) {
int32_t w = lv_obj_get_content_width(cont);
if(lv_obj_get_style_base_dir(tv, LV_PART_MAIN) == LV_BASE_DIR_RTL) t = -(p.x - w / 2) / w;
else t = (p.x + w / 2) / w;
}
else {
int32_t h = lv_obj_get_content_height(cont);
t = (p.y + h / 2) / h;
}
if(t < 0) t = 0;
bool new_tab = false;
if(t != (int32_t)lv_tabview_get_tab_active(tv)) new_tab = true;
/*If not scrolled by an indev set the tab immediately*/
if(lv_indev_active()) {
lv_tabview_set_active(tv, t, LV_ANIM_ON);
}
else {
lv_tabview_set_active(tv, t, LV_ANIM_OFF);
}
if(new_tab) lv_obj_send_event(tv, LV_EVENT_VALUE_CHANGED, NULL);
}
}
#endif /*LV_USE_TABVIEW*/
Lib/lvgl/src/widgets/tabview/lv_tabview.h
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/**
* @file lv_tabview.h
*
*/
#ifndef LV_TABVIEW_H
#define LV_TABVIEW_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "../../lv_conf_internal.h"
#include "../../core/lv_obj.h"
#if LV_USE_TABVIEW
/*********************
* DEFINES
*********************/
LV_ATTRIBUTE_EXTERN_DATA extern const lv_obj_class_t lv_tabview_class;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Create a tabview widget
* @param parent pointer to a parent widget
* @return the created tabview
*/
lv_obj_t * lv_tabview_create(lv_obj_t * parent);
/**
* Add a tab to the tabview
* @param obj pointer to a tabview widget
* @param name the name of the tab, it will be displayed on the tab bar
* @return the widget where the content of the tab can be created
*/
lv_obj_t * lv_tabview_add_tab(lv_obj_t * obj, const char * name);
/**
* Change the name of the tab
* @param obj pointer to a tabview widget
* @param idx the index of the tab to rename
* @param new_name the new name as a string
*/
void lv_tabview_rename_tab(lv_obj_t * obj, uint32_t idx, const char * new_name);
/**
* Show a tab
* @param obj pointer to a tabview widget
* @param idx the index of the tab to show
* @param anim_en LV_ANIM_ON/OFF
*/
void lv_tabview_set_active(lv_obj_t * obj, uint32_t idx, lv_anim_enable_t anim_en);
/**
* Set the position of the tab bar
* @param obj pointer to a tabview widget
* @param dir LV_DIR_TOP/BOTTOM/LEFT/RIGHT
*/
void lv_tabview_set_tab_bar_position(lv_obj_t * obj, lv_dir_t dir);
/**
* Set the width or height of the tab bar
* @param obj pointer to tabview widget
* @param size size of the tab bar in pixels or percentage.
* will be used as width or height based on the position of the tab bar)
*/
void lv_tabview_set_tab_bar_size(lv_obj_t * obj, int32_t size);
/**
* Get the number of tabs
* @param obj pointer to a tabview widget
* @return the number of tabs
*/
uint32_t lv_tabview_get_tab_count(lv_obj_t * obj);
/**
* Get the current tab's index
* @param obj pointer to a tabview widget
* @return the zero based index of the current tab
*/
uint32_t lv_tabview_get_tab_active(lv_obj_t * obj);
/**
* Get the widget where the container of each tab is created
* @param obj pointer to a tabview widget
* @return the main container widget
*/
lv_obj_t * lv_tabview_get_content(lv_obj_t * obj);
/**
* Get the tab bar where the buttons are created
* @param obj pointer to a tabview widget
* @return the tab bar
*/
lv_obj_t * lv_tabview_get_tab_bar(lv_obj_t * obj);
/**********************
* MACROS
**********************/
#endif /*LV_USE_TABVIEW*/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_TABVIEW_H*/
Lib/lvgl/src/widgets/tabview/lv_tabview_private.h
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/**
* @file lv_tabview_private.h
*
*/
#ifndef LV_TABVIEW_PRIVATE_H
#define LV_TABVIEW_PRIVATE_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "../../core/lv_obj_private.h"
#include "lv_tabview.h"
#if LV_USE_TABVIEW
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* TYPEDEFS
**********************/
struct _lv_tabview_t {
lv_obj_t obj;
uint32_t tab_cur;
lv_dir_t tab_pos;
};
/**********************
* GLOBAL PROTOTYPES
**********************/
/**********************
* MACROS
**********************/
#endif /* LV_USE_TABVIEW */
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_TABVIEW_PRIVATE_H*/