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Initial commit: TXW82x FPV v2.7.0.7-42229 SDK + project sources

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zouhaitao
2026-07-06 11:30:13 +08:00
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24
sdk/lib/lvgl/examples/others/gridnav/index.rst Normal file
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Basic grid navigation
"""""""""""""""""""""
.. lv_example:: others/gridnav/lv_example_gridnav_1
:language: c
Grid navigation on a list
""""""""""""""""""""""""
.. lv_example:: others/gridnav/lv_example_gridnav_2
:language: c
Nested grid navigations
"""""""""""""""""""""""
.. lv_example:: others/gridnav/lv_example_gridnav_3
:language: c
Simple navigation on a list widget
"""""""""""""""""""""""
.. lv_example:: others/gridnav/lv_example_gridnav_4
:language: c

41
sdk/lib/lvgl/examples/others/gridnav/lv_example_gridnav.h Normal file
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/**
* @file lv_example_gridnav.h
*
*/
#ifndef LV_EXAMPLE_GRIDNAV_H
#define LV_EXAMPLE_GRIDNAV_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* GLOBAL PROTOTYPES
**********************/
void lv_example_gridnav_1(void);
void lv_example_gridnav_2(void);
void lv_example_gridnav_3(void);
void lv_example_gridnav_4(void);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_EXAMPLE_GRIDNAV_H*/

72
sdk/lib/lvgl/examples/others/gridnav/lv_example_gridnav_1.c Normal file
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#include "../../lv_examples.h"
#if LV_USE_GRIDNAV && LV_USE_FLEX && LV_BUILD_EXAMPLES
/**
* Demonstrate a a basic grid navigation
*/
void lv_example_gridnav_1(void)
{
/*It's assumed that the default group is set and
*there is a keyboard indev*/
lv_obj_t * cont1 = lv_obj_create(lv_scr_act());
lv_gridnav_add(cont1, LV_GRIDNAV_CTRL_NONE);
/*Use flex here, but works with grid or manually placed objects as well*/
lv_obj_set_flex_flow(cont1, LV_FLEX_FLOW_ROW_WRAP);
lv_obj_set_style_bg_color(cont1, lv_palette_lighten(LV_PALETTE_BLUE, 5), LV_STATE_FOCUSED);
lv_obj_set_size(cont1, lv_pct(50), lv_pct(100));
/*Only the container needs to be in a group*/
lv_group_add_obj(lv_group_get_default(), cont1);
lv_obj_t * label = lv_label_create(cont1);
lv_label_set_text_fmt(label, "No rollover");
uint32_t i;
for(i = 0; i < 10; i++) {
lv_obj_t * obj = lv_btn_create(cont1);
lv_obj_set_size(obj, 70, LV_SIZE_CONTENT);
lv_obj_add_flag(obj, LV_OBJ_FLAG_CHECKABLE);
lv_group_remove_obj(obj); /*Not needed, we use the gridnav instead*/
lv_obj_t * label = lv_label_create(obj);
lv_label_set_text_fmt(label, "%"LV_PRIu32"", i);
lv_obj_center(label);
}
/* Create a second container with rollover grid nav mode.*/
lv_obj_t * cont2 = lv_obj_create(lv_scr_act());
lv_gridnav_add(cont2, LV_GRIDNAV_CTRL_ROLLOVER);
lv_obj_set_style_bg_color(cont2, lv_palette_lighten(LV_PALETTE_BLUE, 5), LV_STATE_FOCUSED);
lv_obj_set_size(cont2, lv_pct(50), lv_pct(100));
lv_obj_align(cont2, LV_ALIGN_RIGHT_MID, 0, 0);
label = lv_label_create(cont2);
lv_obj_set_width(label, lv_pct(100));
lv_label_set_text_fmt(label, "Rollover\nUse tab to focus the other container");
/*Only the container needs to be in a group*/
lv_group_add_obj(lv_group_get_default(), cont2);
/*Add and place some children manually*/
lv_obj_t * ta = lv_textarea_create(cont2);
lv_obj_set_size(ta, lv_pct(100), 80);
lv_obj_set_pos(ta, 0, 80);
lv_group_remove_obj(ta); /*Not needed, we use the gridnav instead*/
lv_obj_t * cb = lv_checkbox_create(cont2);
lv_obj_set_pos(cb, 0, 170);
lv_group_remove_obj(cb); /*Not needed, we use the gridnav instead*/
lv_obj_t * sw1 = lv_switch_create(cont2);
lv_obj_set_pos(sw1, 0, 200);
lv_group_remove_obj(sw1); /*Not needed, we use the gridnav instead*/
lv_obj_t * sw2 = lv_switch_create(cont2);
lv_obj_set_pos(sw2, lv_pct(50), 200);
lv_group_remove_obj(sw2); /*Not needed, we use the gridnav instead*/
}
#endif

63
sdk/lib/lvgl/examples/others/gridnav/lv_example_gridnav_1.py Normal file
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#
# Demonstrate a a basic grid navigation
#
# It's assumed that the default group is set and
# there is a keyboard indev
cont1 = lv.obj(lv.scr_act())
lv.gridnav_add(cont1, lv.GRIDNAV_CTRL.NONE)
# Use flex here, but works with grid or manually placed objects as well
cont1.set_flex_flow(lv.FLEX_FLOW.ROW_WRAP)
cont1.set_style_bg_color(lv.palette_lighten(lv.PALETTE.BLUE, 5), lv.STATE.FOCUSED)
cont1.set_size(lv.pct(50), lv.pct(100))
# Only the container needs to be in a group
lv.group_get_default().add_obj(cont1)
label = lv.label(cont1)
label.set_text("No rollover")
for i in range(10):
obj = lv.btn(cont1)
obj.set_size(70, lv.SIZE_CONTENT)
obj.add_flag(lv.obj.FLAG.CHECKABLE)
lv.group_remove_obj(obj) # Not needed, we use the gridnav instead
label = lv.label(obj)
label.set_text("{:d}".format(i))
label.center()
# Create a second container with rollover grid nav mode.
cont2 = lv.obj(lv.scr_act())
lv.gridnav_add(cont2,lv.GRIDNAV_CTRL.ROLLOVER)
cont2.set_style_bg_color(lv.palette_lighten(lv.PALETTE.BLUE, 5), lv.STATE.FOCUSED)
cont2.set_size(lv.pct(50), lv.pct(100))
cont2.align(lv.ALIGN.RIGHT_MID, 0, 0)
label = lv.label(cont2)
label.set_width(lv.pct(100))
label.set_text("Rollover\nUse tab to focus the other container")
# Only the container needs to be in a group
lv.group_get_default().add_obj(cont2)
# Add and place some children manually
ta = lv.textarea(cont2)
ta.set_size(lv.pct(100), 80)
ta.set_pos(0, 80);
lv.group_remove_obj(ta) # Not needed, we use the gridnav instead
cb = lv.checkbox(cont2)
cb.set_pos(0, 170)
lv.group_remove_obj(cb) # Not needed, we use the gridnav instead
sw1 = lv.switch(cont2)
sw1.set_pos(0, 200);
lv.group_remove_obj(sw1) # Not needed, we use the gridnav instead
sw2 = lv.switch(cont2)
sw2.set_pos(lv.pct(50), 200)
lv.group_remove_obj(sw2) # Not needed, we use the gridnav instead

44
sdk/lib/lvgl/examples/others/gridnav/lv_example_gridnav_2.c Normal file
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#include "../../lv_examples.h"
#if LV_USE_GRIDNAV && LV_USE_LIST && LV_BUILD_EXAMPLES
/**
* Grid navigation on a list
*/
void lv_example_gridnav_2(void)
{
/*It's assumed that the default group is set and
*there is a keyboard indev*/
lv_obj_t * list1 = lv_list_create(lv_scr_act());
lv_gridnav_add(list1, LV_GRIDNAV_CTRL_NONE);
lv_obj_set_size(list1, lv_pct(45), lv_pct(80));
lv_obj_align(list1, LV_ALIGN_LEFT_MID, 5, 0);
lv_obj_set_style_bg_color(list1, lv_palette_lighten(LV_PALETTE_BLUE, 5), LV_STATE_FOCUSED);
lv_group_add_obj(lv_group_get_default(), list1);
char buf[32];
uint32_t i;
for(i = 0; i < 15; i++) {
lv_snprintf(buf, sizeof(buf), "File %d", i + 1);
lv_obj_t * item = lv_list_add_btn(list1, LV_SYMBOL_FILE, buf);
lv_obj_set_style_bg_opa(item, 0, 0);
lv_group_remove_obj(item); /*Not needed, we use the gridnav instead*/
}
lv_obj_t * list2 = lv_list_create(lv_scr_act());
lv_gridnav_add(list2, LV_GRIDNAV_CTRL_ROLLOVER);
lv_obj_set_size(list2, lv_pct(45), lv_pct(80));
lv_obj_align(list2, LV_ALIGN_RIGHT_MID, -5, 0);
lv_obj_set_style_bg_color(list2, lv_palette_lighten(LV_PALETTE_BLUE, 5), LV_STATE_FOCUSED);
lv_group_add_obj(lv_group_get_default(), list2);
for(i = 0; i < 15; i++) {
lv_snprintf(buf, sizeof(buf), "Folder %d", i + 1);
lv_obj_t * item = lv_list_add_btn(list2, LV_SYMBOL_DIRECTORY, buf);
lv_obj_set_style_bg_opa(item, 0, 0);
lv_group_remove_obj(item);
}
}
#endif

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sdk/lib/lvgl/examples/others/gridnav/lv_example_gridnav_2.py Normal file
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#
# Grid navigation on a list
#
# It's assumed that the default group is set and
# there is a keyboard indev
list1 = lv.list(lv.scr_act())
lv.gridnav_add(list1, lv.GRIDNAV_CTRL.NONE)
list1.set_size(lv.pct(45), lv.pct(80))
list1.align(lv.ALIGN.LEFT_MID, 5, 0)
list1.set_style_bg_color(lv.palette_lighten(lv.PALETTE.BLUE, 5), lv.STATE.FOCUSED)
lv.group_get_default().add_obj(list1)
for i in range(15):
item_text = "File {:d}".format(i)
item = list1.add_btn(lv.SYMBOL.FILE, item_text)
item.set_style_bg_opa(0, 0)
lv.group_remove_obj(item) # Not needed, we use the gridnav instead
list2 = lv.list(lv.scr_act())
lv.gridnav_add(list2, lv.GRIDNAV_CTRL.ROLLOVER)
list2.set_size(lv.pct(45), lv.pct(80))
list2.align(lv.ALIGN.RIGHT_MID, -5, 0)
list2.set_style_bg_color(lv.palette_lighten(lv.PALETTE.BLUE, 5), lv.STATE.FOCUSED)
lv.group_get_default().add_obj(list2)
for i in range(15):
item_text = "Folder {:d}".format(i)
item = list2.add_btn(lv.SYMBOL.DIRECTORY, item_text)
item.set_style_bg_opa(0, 0)
lv.group_remove_obj(item)

101
sdk/lib/lvgl/examples/others/gridnav/lv_example_gridnav_3.c Normal file
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#include "../../lv_examples.h"
#if LV_USE_GRIDNAV && LV_USE_FLEX && LV_BUILD_EXAMPLES
static void cont_sub_event_cb(lv_event_t * e)
{
uint32_t k = lv_event_get_key(e);
lv_obj_t * obj = lv_event_get_current_target(e);
if(k == LV_KEY_ENTER) {
lv_group_focus_obj(obj);
}
else if(k == LV_KEY_ESC) {
lv_group_focus_next(lv_obj_get_group(obj));
}
}
/**
* Nested grid navigations
*/
void lv_example_gridnav_3(void)
{
/*It's assumed that the default group is set and
*there is a keyboard indev*/
lv_obj_t * cont_main = lv_obj_create(lv_scr_act());
lv_gridnav_add(cont_main, LV_GRIDNAV_CTRL_ROLLOVER | LV_GRIDNAV_CTRL_SCROLL_FIRST);
/*Only the container needs to be in a group*/
lv_group_add_obj(lv_group_get_default(), cont_main);
/*Use flex here, but works with grid or manually placed objects as well*/
lv_obj_set_flex_flow(cont_main, LV_FLEX_FLOW_ROW_WRAP);
lv_obj_set_style_bg_color(cont_main, lv_palette_lighten(LV_PALETTE_BLUE, 5), LV_STATE_FOCUSED);
lv_obj_set_size(cont_main, lv_pct(80), LV_SIZE_CONTENT);
lv_obj_t * btn;
lv_obj_t * label;
btn = lv_btn_create(cont_main);
lv_group_remove_obj(btn);
label = lv_label_create(btn);
lv_label_set_text(label, "Button 1");
btn = lv_btn_create(cont_main);
lv_group_remove_obj(btn);
label = lv_label_create(btn);
lv_label_set_text(label, "Button 2");
/*Create an other container with long text to show how LV_GRIDNAV_CTRL_SCROLL_FIRST works*/
lv_obj_t * cont_sub1 = lv_obj_create(cont_main);
lv_obj_set_size(cont_sub1, lv_pct(100), 100);
label = lv_label_create(cont_sub1);
lv_obj_set_style_bg_color(cont_sub1, lv_palette_lighten(LV_PALETTE_RED, 5), LV_STATE_FOCUSED);
lv_obj_set_width(label, lv_pct(100));
lv_label_set_text(label,
"I'm a very long text which is makes my container scrollable. "
"As LV_GRIDNAV_FLAG_SCROLL_FIRST is enabled arrow will scroll me first "
"and a new objects will be focused only when an edge is reached with the scrolling.\n\n"
"This is only some placeholder text to be sure the parent will be scrollable. \n\n"
"Hello world!\n"
"Hello world!\n"
"Hello world!\n"
"Hello world!\n"
"Hello world!\n"
"Hello world!");
/*Create a third container that can be focused with ENTER and contains an other grid nav*/
lv_obj_t * cont_sub2 = lv_obj_create(cont_main);
lv_gridnav_add(cont_sub2, LV_GRIDNAV_CTRL_ROLLOVER);
/*Only the container needs to be in a group*/
lv_group_add_obj(lv_group_get_default(), cont_sub2);
lv_obj_add_event_cb(cont_sub2, cont_sub_event_cb, LV_EVENT_KEY, NULL);
/*Use flex here, but works with grid or manually placed objects as well*/
lv_obj_set_flex_flow(cont_sub2, LV_FLEX_FLOW_ROW_WRAP);
lv_obj_set_style_bg_color(cont_sub2, lv_palette_lighten(LV_PALETTE_RED, 5), LV_STATE_FOCUSED);
lv_obj_set_size(cont_sub2, lv_pct(100), LV_SIZE_CONTENT);
label = lv_label_create(cont_sub2);
lv_label_set_text(label, "Use ENTER/ESC to focus/defocus this container");
lv_obj_set_width(label, lv_pct(100));
btn = lv_btn_create(cont_sub2);
lv_group_remove_obj(btn);
label = lv_label_create(btn);
lv_label_set_text(label, "Button 3");
btn = lv_btn_create(cont_sub2);
lv_group_remove_obj(btn);
label = lv_label_create(btn);
lv_label_set_text(label, "Button 4");
}
#endif

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sdk/lib/lvgl/examples/others/gridnav/lv_example_gridnav_3.py Normal file
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def cont_sub_event_cb(e):
k = e.get_key()
obj = e.get_current_target()
if k == lv.KEY.ENTER:
lv.group_focus_obj(obj)
elif k == lv.KEY.ESC:
obj.get_group().focus_next()
#
# Nested grid navigations
#
# It's assumed that the default group is set and
# there is a keyboard indev*/
cont_main = lv.obj(lv.scr_act())
lv.gridnav_add(cont_main,lv.GRIDNAV_CTRL.ROLLOVER | lv.GRIDNAV_CTRL.SCROLL_FIRST)
# Only the container needs to be in a group
lv.group_get_default().add_obj(cont_main)
# Use flex here, but works with grid or manually placed objects as well
cont_main.set_flex_flow(lv.FLEX_FLOW.ROW_WRAP)
cont_main.set_style_bg_color(lv.palette_lighten(lv.PALETTE.BLUE, 5), lv.STATE.FOCUSED)
cont_main.set_size(lv.pct(80), lv.SIZE_CONTENT)
btn = lv.btn(cont_main)
lv.group_remove_obj(btn)
label = lv.label(btn)
label.set_text("Button 1")
btn = lv.btn(cont_main)
lv.group_remove_obj(btn)
label = lv.label(btn)
label.set_text("Button 2");
# Create an other container with long text to show how LV_GRIDNAV_CTRL_SCROLL_FIRST works
cont_sub1 = lv.obj(cont_main)
cont_sub1.set_size(lv.pct(100), 100)
label = lv.label(cont_sub1)
cont_sub1.set_style_bg_color(lv.palette_lighten(lv.PALETTE.RED, 5), lv.STATE.FOCUSED)
label.set_width(lv.pct(100));
label.set_text(
"""I'm a very long text which makes my container scrollable.
As LV_GRIDNAV_FLAG_SCROLL_FIRST is enabled arrows will scroll me first
and a new objects will be focused only when an edge is reached with the scrolling.\n
This is only some placeholder text to be sure the parent will be scrollable. \n
Hello world!
Hello world!
Hello world!
Hello world!
Hello world!
Hello world!
""")
# Create a third container that can be focused with ENTER and contains an other grid nav
cont_sub2 = lv.obj(cont_main)
lv.gridnav_add(cont_sub2, lv.GRIDNAV_CTRL.ROLLOVER)
#Only the container needs to be in a group
lv.group_get_default().add_obj(cont_sub2)
cont_sub2.add_event_cb(cont_sub_event_cb, lv.EVENT.KEY, None)
# Use flex here, but works with grid or manually placed objects as well
cont_sub2.set_flex_flow(lv.FLEX_FLOW.ROW_WRAP)
cont_sub2.set_style_bg_color(lv.palette_lighten(lv.PALETTE.RED, 5), lv.STATE.FOCUSED)
cont_sub2.set_size(lv.pct(100), lv.SIZE_CONTENT)
label = lv.label(cont_sub2)
label.set_text("Use ENTER/ESC to focus/defocus this container")
label.set_width(lv.pct(100))
btn = lv.btn(cont_sub2)
lv.group_remove_obj(btn)
label = lv.label(btn)
label.set_text("Button 3")
btn = lv.btn(cont_sub2)
lv.group_remove_obj(btn)
label = lv.label(btn)
label.set_text("Button 4")

47
sdk/lib/lvgl/examples/others/gridnav/lv_example_gridnav_4.c Normal file
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#include "../../lv_examples.h"
#if LV_USE_GRIDNAV && LV_USE_FLEX && LV_BUILD_EXAMPLES
static void event_handler(lv_event_t * e)
{
lv_obj_t * obj = lv_event_get_target(e);
lv_obj_t * list = lv_obj_get_parent(obj);
LV_LOG_USER("Clicked: %s", lv_list_get_btn_text(list, obj));
}
/**
* Simple navigation on a list widget
*/
void lv_example_gridnav_4(void)
{
/*It's assumed that the default group is set and
*there is a keyboard indev*/
lv_obj_t * list = lv_list_create(lv_scr_act());
lv_gridnav_add(list, LV_GRIDNAV_CTRL_ROLLOVER);
lv_obj_align(list, LV_ALIGN_LEFT_MID, 0, 10);
lv_group_add_obj(lv_group_get_default(), list);
uint32_t i;
for(i = 0; i < 20; i++) {
char buf[32];
/*Add some separators too, they are not focusable by gridnav*/
if((i % 5) == 0) {
lv_snprintf(buf, sizeof(buf), "Section %d", i / 5 + 1);
lv_list_add_text(list, buf);
}
lv_snprintf(buf, sizeof(buf), "File %d", i + 1);
lv_obj_t * item = lv_list_add_btn(list, LV_SYMBOL_FILE, buf);
lv_obj_add_event_cb(item, event_handler, LV_EVENT_CLICKED, NULL);
lv_group_remove_obj(item); /*The default group adds it automatically*/
}
lv_obj_t * btn = lv_btn_create(lv_scr_act());
lv_obj_align(btn, LV_ALIGN_RIGHT_MID, 0, -10);
lv_obj_t * label = lv_label_create(btn);
lv_label_set_text(label, "Button");
}
#endif

36
sdk/lib/lvgl/examples/others/gridnav/lv_example_gridnav_4.py Normal file
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def event_handler(e):
obj = e.get_target()
list = obj.get_parent()
print("Clicked: " + list.get_btn_text(obj))
#
# Simple navigation on a list widget
#
# It's assumed that the default group is set and
# there is a keyboard indev
list = lv.list(lv.scr_act())
lv.gridnav_add(list, lv.GRIDNAV_CTRL.ROLLOVER)
list.align(lv.ALIGN.LEFT_MID, 0, 10)
lv.group_get_default().add_obj(list)
for i in range(20):
# Add some separators too, they are not focusable by gridnav
if i % 5 == 0:
txt = "Section {:d}".format(i // 5 + 1)
# lv_snprintf(buf, sizeof(buf), "Section %d", i / 5 + 1);
list.add_text(txt)
txt = "File {:d}".format(i + 1)
#lv_snprintf(buf, sizeof(buf), "File %d", i + 1);
item = list.add_btn(lv.SYMBOL.FILE, txt)
item.add_event_cb(event_handler, lv.EVENT.CLICKED, None)
lv.group_remove_obj(item) # The default group adds it automatically
btn = lv.btn(lv.scr_act())
btn.align(lv.ALIGN.RIGHT_MID, 0, -10)
label = lv.label(btn)
label.set_text("Button")