Mirrors_UI_SDK/lvgl
1
0
Fork 0
mirror of https://github.com/lvgl/lvgl.git synced 2026-06-01 08:54:52 +08:00
Code Issues Actions 23 Packages Projects Releases Wiki Activity

feat(file_explorer): add API to use file explorer (#3601)

Browse Source 
Co-authored-by: 100ask <team100ask@outlook.com>
Co-authored-by: Gabor Kiss-Vamosi <kisvegabor@gmail.com>
This commit is contained in:
Yobe Zhou
2022-09-04 22:57:15 +08:00
committed by GitHub
parent 3b7411893f
commit f09c04b935
15 changed files with 1477 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
examples/others/file_explorer/index.rst
+18
View File
@@ -0,0 +1,18 @@
Simple File Explorer
"""""""""""""""""""""""""
.. lv_example:: others/ime/lv_example_file_explorer_1
:language: c
Control File Explorer
"""""""""""""""""""""""""
.. lv_example:: others/ime/lv_example_file_explorer_2
:language: c
Custom sort
"""""""""""""""""""""""""
.. lv_example:: others/ime/lv_example_file_explorer_3
:language: c
examples/others/file_explorer/lv_example_file_explorer.h
+40
View File
@@ -0,0 +1,40 @@
/**
* @file lv_example_file_explorer.h
*
*/
#ifndef LV_EX_FILE_EXPLORER_H
#define LV_EX_FILE_EXPLORER_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* GLOBAL PROTOTYPES
**********************/
void lv_example_file_explorer_1(void);
void lv_example_file_explorer_2(void);
void lv_example_file_explorer_3(void);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_EX_FILE_EXPLORER_H*/
examples/others/file_explorer/lv_example_file_explorer_1.c
+61
View File
@@ -0,0 +1,61 @@
#include "../../lv_examples.h"
#if LV_USE_TABLE && LV_USE_FILE_EXPLORER && (LV_USE_FS_STDIO || LV_USE_FS_POSIX || LV_USE_FS_WIN32 || LV_USE_FS_FATFS) && LV_BUILD_EXAMPLES
static void file_explorer_event_handler(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * obj = lv_event_get_target(e);
if(code == LV_EVENT_VALUE_CHANGED) {
char * cur_path = lv_file_explorer_get_current_path(obj);
const char * sel_fn = lv_file_explorer_get_selected_file_name(obj);
uint16_t path_len = strlen(cur_path);
uint16_t fn_len = strlen(sel_fn);
if((path_len + fn_len) <= LV_FILE_EXPLORER_PATH_MAX_LEN) {
char file_info[LV_FILE_EXPLORER_PATH_MAX_LEN];
strcpy(file_info, cur_path);
strcat(file_info, sel_fn);
LV_LOG_USER("%s", file_info);
}
else LV_LOG_USER("%s%s", cur_path, sel_fn);
}
}
void lv_example_file_explorer_1(void)
{
lv_obj_t * file_explorer = lv_file_explorer_create(lv_scr_act());
lv_file_explorer_set_sort(file_explorer, LV_EXPLORER_SORT_KIND);
#if LV_USE_FS_WIN32
lv_file_explorer_open_dir(file_explorer, "D:");
#if LV_FILE_EXPLORER_QUICK_ACCESS
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_HOME_DIR, "C:/Users/Public/Desktop");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_VIDEO_DIR, "C:/Users/Public/Videos");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_PICTURES_DIR, "C:/Users/Public/Pictures");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_MUSIC_DIR, "C:/Users/Public/Music");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_DOCS_DIR, "C:/Users/Public/Documents");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_FS_DIR, "D:");
#endif
#else
/* linux */
lv_file_explorer_open_dir(file_explorer, "/");
#if LV_FILE_EXPLORER_QUICK_ACCESS
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_HOME_DIR, "/home");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_VIDEO_DIR, "/home/Videos");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_PICTURES_DIR, "/home/Pictures");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_MUSIC_DIR, "/home/Music");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_DOCS_DIR, "/home/Documents");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_FS_DIR, "/");
#endif
#endif
lv_obj_add_event_cb(file_explorer, file_explorer_event_handler, LV_EVENT_ALL, NULL);
}
#endif
examples/others/file_explorer/lv_example_file_explorer_2.c
+121
View File
@@ -0,0 +1,121 @@
#include "../../lv_examples.h"
#if LV_USE_TABLE && LV_USE_FILE_EXPLORER && (LV_USE_FS_STDIO || LV_USE_FS_POSIX || LV_USE_FS_WIN32 || LV_USE_FS_FATFS) && LV_BUILD_EXAMPLES
static void file_explorer_event_handler(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * obj = lv_event_get_target(e);
if(code == LV_EVENT_VALUE_CHANGED) {
char * cur_path = lv_file_explorer_get_current_path(obj);
const char * sel_fn = lv_file_explorer_get_selected_file_name(obj);
uint16_t path_len = strlen(cur_path);
uint16_t fn_len = strlen(sel_fn);
if((path_len + fn_len) <= LV_FILE_EXPLORER_PATH_MAX_LEN) {
char file_info[LV_FILE_EXPLORER_PATH_MAX_LEN];
strcpy(file_info, cur_path);
strcat(file_info, sel_fn);
LV_LOG_USER("%s", file_info);
}
else LV_LOG_USER("%s%s", cur_path, sel_fn);
}
}
static void btn_event_handler(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * btn = lv_event_get_target(e);
lv_obj_t * file_explorer = lv_event_get_user_data(e);
if(code == LV_EVENT_VALUE_CHANGED) {
if(lv_obj_has_state(btn, LV_STATE_CHECKED))
lv_obj_add_flag(file_explorer, LV_OBJ_FLAG_HIDDEN);
else
lv_obj_clear_flag(file_explorer, LV_OBJ_FLAG_HIDDEN);
}
}
static void dd_event_handler(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * dd = lv_event_get_target(e);
lv_obj_t * fe_quick_access_obj = lv_event_get_user_data(e);
if(code == LV_EVENT_VALUE_CHANGED) {
char buf[32];
lv_dropdown_get_selected_str(dd, buf, sizeof(buf));
if(strcmp(buf, "NONE") == 0) {
lv_file_explorer_set_sort(fe_quick_access_obj, LV_EXPLORER_SORT_NONE);
}
else if(strcmp(buf, "KIND") == 0) {
lv_file_explorer_set_sort(fe_quick_access_obj, LV_EXPLORER_SORT_KIND);
}
}
}
void lv_example_file_explorer_2(void)
{
lv_obj_t * file_explorer = lv_file_explorer_create(lv_scr_act());
#if LV_USE_FS_WIN32
lv_file_explorer_open_dir(file_explorer, "D:");
#if LV_FILE_EXPLORER_QUICK_ACCESS
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_HOME_DIR, "C:/Users/Public/Desktop");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_VIDEO_DIR, "C:/Users/Public/Videos");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_PICTURES_DIR, "C:/Users/Public/Pictures");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_MUSIC_DIR, "C:/Users/Public/Music");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_DOCS_DIR, "C:/Users/Public/Documents");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_FS_DIR, "D:");
#endif
#else
/* linux */
lv_file_explorer_open_dir(file_explorer, "/");
#if LV_FILE_EXPLORER_QUICK_ACCESS
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_HOME_DIR, "/home");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_VIDEO_DIR, "/home/Videos");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_PICTURES_DIR, "/home/Pictures");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_MUSIC_DIR, "/home/Music");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_DOCS_DIR, "/home/Documents");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_FS_DIR, "/");
#endif
#endif
lv_obj_add_event_cb(file_explorer, file_explorer_event_handler, LV_EVENT_ALL, NULL);
/*Quick access status control button*/
lv_obj_t * fe_quick_access_obj = lv_file_explorer_get_quick_access_area(file_explorer);
lv_obj_t * fe_header_obj = lv_file_explorer_get_header(file_explorer);
lv_obj_t * btn = lv_btn_create(fe_header_obj);
lv_obj_set_style_radius(btn, 2, 0);
lv_obj_set_style_pad_all(btn, 4, 0);
lv_obj_align(btn, LV_ALIGN_LEFT_MID, 0, 0);
lv_obj_add_flag(btn, LV_OBJ_FLAG_CHECKABLE);
lv_obj_t * label = lv_label_create(btn);
lv_label_set_text(label, LV_SYMBOL_LIST);
lv_obj_center(label);
lv_obj_add_event_cb(btn, btn_event_handler, LV_EVENT_VALUE_CHANGED, fe_quick_access_obj);
/*Sort control*/
static const char * opts = "NONE\n"
"KIND";
lv_obj_t * dd = lv_dropdown_create(fe_header_obj);
lv_obj_set_style_radius(dd, 4, 0);
lv_obj_set_style_pad_all(dd, 0, 0);
lv_obj_set_size(dd, LV_PCT(30), LV_SIZE_CONTENT);
lv_dropdown_set_options_static(dd, opts);
lv_obj_align(dd, LV_ALIGN_RIGHT_MID, 0, 0);
//lv_obj_align_to(dd, btn, LV_ALIGN_OUT_RIGHT_MID, 0, 0);
lv_obj_add_event_cb(dd, dd_event_handler, LV_EVENT_VALUE_CHANGED, file_explorer);
}
#endif
examples/others/file_explorer/lv_example_file_explorer_3.c
+107
View File
@@ -0,0 +1,107 @@
#include "../../lv_examples.h"
#if LV_USE_TABLE && LV_USE_FILE_EXPLORER && (LV_USE_FS_STDIO || LV_USE_FS_POSIX || LV_USE_FS_WIN32 || LV_USE_FS_FATFS) && LV_BUILD_EXAMPLES
static void exch_table_item(lv_obj_t * tb, int16_t i, int16_t j)
{
const char * tmp;
tmp = lv_table_get_cell_value(tb, i, 0);
lv_table_set_cell_value(tb, 0, 2, tmp);
lv_table_set_cell_value(tb, i, 0, lv_table_get_cell_value(tb, j, 0));
lv_table_set_cell_value(tb, j, 0, lv_table_get_cell_value(tb, 0, 2));
tmp = lv_table_get_cell_value(tb, i, 1);
lv_table_set_cell_value(tb, 0, 2, tmp);
lv_table_set_cell_value(tb, i, 1, lv_table_get_cell_value(tb, j, 1));
lv_table_set_cell_value(tb, j, 1, lv_table_get_cell_value(tb, 0, 2));
}
/*Quick sort 3 way*/
static void sort_by_file_kind(lv_obj_t * tb, int16_t lo, int16_t hi)
{
if(lo >= hi) return;
int16_t lt = lo;
int16_t i = lo + 1;
int16_t gt = hi;
const char * v = lv_table_get_cell_value(tb, lo, 1);
while(i <= gt) {
if(strcmp(lv_table_get_cell_value(tb, i, 1), v) < 0)
exch_table_item(tb, lt++, i++);
else if(strcmp(lv_table_get_cell_value(tb, i, 1), v) > 0)
exch_table_item(tb, i, gt--);
else
i++;
}
sort_by_file_kind(tb, lo, lt - 1);
sort_by_file_kind(tb, gt + 1, hi);
}
static void file_explorer_event_handler(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * obj = lv_event_get_target(e);
if(code == LV_EVENT_VALUE_CHANGED) {
char * cur_path = lv_file_explorer_get_current_path(obj);
const char * sel_fn = lv_file_explorer_get_selected_file_name(obj);
uint16_t path_len = strlen(cur_path);
uint16_t fn_len = strlen(sel_fn);
if((path_len + fn_len) <= LV_FILE_EXPLORER_PATH_MAX_LEN) {
char file_info[LV_FILE_EXPLORER_PATH_MAX_LEN];
strcpy(file_info, cur_path);
strcat(file_info, sel_fn);
LV_LOG_USER("%s", file_info);
}
else LV_LOG_USER("%s%s", cur_path, sel_fn);
}
else if(code == LV_EVENT_READY) {
lv_obj_t * tb = lv_file_explorer_get_file_table(obj);
uint16_t sum = lv_table_get_row_cnt(tb);
sort_by_file_kind(tb, 0, (sum - 1));
}
}
void lv_example_file_explorer_3(void)
{
lv_obj_t * file_explorer = lv_file_explorer_create(lv_scr_act());
/*Before custom sort, please set the default sorting to NONE. The default is NONE.*/
lv_file_explorer_set_sort(file_explorer, LV_EXPLORER_SORT_NONE);
#if LV_USE_FS_WIN32
lv_file_explorer_open_dir(file_explorer, "D:");
#if LV_FILE_EXPLORER_QUICK_ACCESS
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_HOME_DIR, "C:/Users/Public/Desktop");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_VIDEO_DIR, "C:/Users/Public/Videos");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_PICTURES_DIR, "C:/Users/Public/Pictures");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_MUSIC_DIR, "C:/Users/Public/Music");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_DOCS_DIR, "C:/Users/Public/Documents");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_FS_DIR, "D:");
#endif
#else
/* linux */
lv_file_explorer_open_dir(file_explorer, "/");
#if LV_FILE_EXPLORER_QUICK_ACCESS
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_HOME_DIR, "/home");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_VIDEO_DIR, "/home/Videos");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_PICTURES_DIR, "/home/Pictures");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_MUSIC_DIR, "/home/Music");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_DOCS_DIR, "/home/Documents");
lv_file_explorer_set_quick_access_path(file_explorer, LV_EXPLORER_FS_DIR, "/");
#endif
#endif
lv_obj_add_event_cb(file_explorer, file_explorer_event_handler, LV_EVENT_ALL, NULL);
}
#endif
examples/others/lv_example_others.h
+1
View File
@@ -13,6 +13,7 @@ extern "C" {
/*********************
* INCLUDES
*********************/
#include "file_explorer/lv_example_file_explorer.h"
#include "fragment/lv_example_fragment.h"
#include "gridnav/lv_example_gridnav.h"
#include "ime/lv_example_ime_pinyin.h"