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MicroPythonOS/internal_filesystem/lib/mpos/ui.py
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Thomas Farstrike 6a12af12de Fixes for actual hardware
2025-05-12 00:26:54 +02:00

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import lvgl as lv
import mpos.apps
NOTIFICATION_BAR_HEIGHT=24
CLOCK_UPDATE_INTERVAL = 1000 # 10 or even 1 ms doesn't seem to change the framerate but 100ms is enough
WIFI_ICON_UPDATE_INTERVAL = 1500
TEMPERATURE_UPDATE_INTERVAL = 2000
MEMFREE_UPDATE_INTERVAL = 5000 # not too frequent because there's a forced gc.collect() to give it a reliable value
DRAWER_ANIM_DURATION=300
drawer=None
rootscreen = None
drawer_open=False
bar_open=True
hide_bar_animation = None
show_bar_animation = None
foreground_app_name=None
def set_foreground_app(appname):
global foreground_app_name
print(f"foreground app is: {foreground_app_name}")
foreground_app_name = appname
def open_drawer():
global drawer_open, drawer
if not drawer_open:
open_bar()
drawer_open=True
drawer.remove_flag(lv.obj.FLAG.HIDDEN)
def close_drawer(to_launcher=False):
global drawer_open, drawer
if drawer_open:
drawer_open=False
drawer.add_flag(lv.obj.FLAG.HIDDEN)
if not to_launcher and not mpos.apps.is_launcher(foreground_app_name):
close_bar()
def open_bar():
global bar_open, show_bar_animation
if not bar_open:
bar_open=True
show_bar_animation.start()
def close_bar():
global bar_open, hide_bar_animation
if bar_open:
bar_open=False
hide_bar_animation.start()
def show_launcher():
global rootscreen
set_foreground_app("com.example.launcher")
open_bar()
lv.screen_load(rootscreen)
def create_rootscreen():
global rootscreen
rootscreen = lv.screen_active()
rootlabel = lv.label(rootscreen)
rootlabel.set_text("Welcome!")
rootlabel.align(lv.ALIGN.CENTER, 0, 0)
def create_notification_bar():
# Create notification bar
notification_bar = lv.obj(lv.layer_top())
notification_bar.set_size(lv.pct(100), NOTIFICATION_BAR_HEIGHT)
notification_bar.set_pos(0, 0)
notification_bar.set_scrollbar_mode(lv.SCROLLBAR_MODE.OFF)
notification_bar.set_scroll_dir(lv.DIR.VER)
notification_bar.set_style_border_width(0, 0)
notification_bar.set_style_radius(0, 0)
# Time label
time_label = lv.label(notification_bar)
time_label.set_text("00:00:00")
time_label.align(lv.ALIGN.LEFT_MID, 0, 0)
temp_label = lv.label(notification_bar)
temp_label.set_text("00°C")
temp_label.align_to(time_label, lv.ALIGN.OUT_RIGHT_MID, NOTIFICATION_BAR_HEIGHT , 0)
memfree_label = lv.label(notification_bar)
memfree_label.set_text("")
memfree_label.align_to(temp_label, lv.ALIGN.OUT_RIGHT_MID, NOTIFICATION_BAR_HEIGHT, 0)
#style = lv.style_t()
#style.init()
#style.set_text_font(lv.font_montserrat_8) # tiny font
#memfree_label.add_style(style, 0)
# Notification icon (bell)
#notif_icon = lv.label(notification_bar)
#notif_icon.set_text(lv.SYMBOL.BELL)
#notif_icon.align_to(time_label, lv.ALIGN.OUT_RIGHT_MID, PADDING_TINY, 0)
# Battery icon
battery_icon = lv.label(notification_bar)
battery_icon.set_text(lv.SYMBOL.BATTERY_FULL)
battery_icon.align(lv.ALIGN.RIGHT_MID, 0, 0)
# WiFi icon
wifi_icon = lv.label(notification_bar)
wifi_icon.set_text(lv.SYMBOL.WIFI)
wifi_icon.align_to(battery_icon, lv.ALIGN.OUT_LEFT_MID, -NOTIFICATION_BAR_HEIGHT, 0)
wifi_icon.add_flag(lv.obj.FLAG.HIDDEN)
# Battery percentage - not shown to conserve space
#battery_label = lv.label(notification_bar)
#battery_label.set_text("100%")
#battery_label.align(lv.ALIGN.RIGHT_MID, 0, 0)
# Update time
import time
def update_time(timer):
ticks = time.ticks_ms()
hours = (ticks // 3600000) % 24
minutes = (ticks // 60000) % 60
seconds = (ticks // 1000) % 60
#milliseconds = ticks % 1000
time_label.set_text(f"{hours:02d}:{minutes:02d}:{seconds:02d}")
can_check_network = False
try:
import network
can_check_network = True
except Exception as e:
print("Warning: could not check WLAN status:", str(e))
def update_wifi_icon(timer):
if not can_check_network or network.WLAN(network.STA_IF).isconnected():
wifi_icon.remove_flag(lv.obj.FLAG.HIDDEN)
else:
wifi_icon.add_flag(lv.obj.FLAG.HIDDEN)
can_check_temperature = False
try:
import esp32
can_check_temperature = True
except Exception as e:
print("Warning: can't check temperature sensor:", str(e))
def update_temperature(timer):
if can_check_temperature:
temp_label.set_text(f"{esp32.mcu_temperature()}°C")
else:
temp_label.set_text("42°C")
import gc
def update_memfree(timer):
gc.collect()
memfree_label.set_text(f"{gc.mem_free()}")
timer1 = lv.timer_create(update_time, CLOCK_UPDATE_INTERVAL, None)
timer2 = lv.timer_create(update_temperature, TEMPERATURE_UPDATE_INTERVAL, None)
timer3 = lv.timer_create(update_memfree, MEMFREE_UPDATE_INTERVAL, None)
timer4 = lv.timer_create(update_wifi_icon, WIFI_ICON_UPDATE_INTERVAL, None)
# hide bar animation
global hide_bar_animation
hide_bar_animation = lv.anim_t()
hide_bar_animation.init()
hide_bar_animation.set_var(notification_bar)
hide_bar_animation.set_values(0, -NOTIFICATION_BAR_HEIGHT)
hide_bar_animation.set_time(2000)
hide_bar_animation.set_custom_exec_cb(lambda not_used, value : notification_bar.set_y(value))
# show bar animation
global show_bar_animation
show_bar_animation = lv.anim_t()
show_bar_animation.init()
show_bar_animation.set_var(notification_bar)
show_bar_animation.set_values(-NOTIFICATION_BAR_HEIGHT, 0)
show_bar_animation.set_time(1000)
show_bar_animation.set_custom_exec_cb(lambda not_used, value : notification_bar.set_y(value))
def create_drawer(display):
global drawer
drawer=lv.obj(lv.layer_top())
drawer.set_size(lv.pct(100),lv.pct(90))
drawer.set_pos(0,NOTIFICATION_BAR_HEIGHT)
drawer.set_scroll_dir(lv.DIR.NONE)
drawer.set_style_pad_all(0, 0)
drawer.add_flag(lv.obj.FLAG.HIDDEN)
slider_label=lv.label(drawer)
slider_label.set_text(f"{100}%") # TODO: restore this from configuration
slider_label.align(lv.ALIGN.TOP_MID,0,lv.pct(4))
slider=lv.slider(drawer)
slider.set_range(1,100)
slider.set_value(100,False)
slider.set_width(lv.pct(80))
slider.align_to(slider_label,lv.ALIGN.OUT_BOTTOM_MID,0,lv.pct(4))
def slider_event(e):
value=slider.get_value()
slider_label.set_text(f"{value}%")
display.set_backlight(value)
slider.add_event_cb(slider_event,lv.EVENT.VALUE_CHANGED,None)
wifi_btn=lv.button(drawer)
wifi_btn.set_size(lv.pct(40),lv.SIZE_CONTENT)
wifi_btn.align(lv.ALIGN.LEFT_MID,0,0)
wifi_label=lv.label(wifi_btn)
wifi_label.set_text(lv.SYMBOL.WIFI+" WiFi")
wifi_label.center()
def wifi_event(e):
global drawer_open
close_drawer()
start_app_by_name("com.example.wificonf")
wifi_btn.add_event_cb(wifi_event,lv.EVENT.CLICKED,None)
#
#settings_btn=lv.button(drawer)
#settings_btn.set_size(BUTTON_WIDTH,BUTTON_HEIGHT)
#settings_btn.align(lv.ALIGN.RIGHT_MID,-PADDING_MEDIUM,0)
#settings_label=lv.label(settings_btn)
#settings_label.set_text(lv.SYMBOL.SETTINGS+" Settings")
#settings_label.center()
#def settings_event(e):
# global drawer_open
# close_drawer()
#settings_btn.add_event_cb(settings_event,lv.EVENT.CLICKED,None)
#
launcher_btn=lv.button(drawer)
launcher_btn.set_size(lv.pct(40),lv.SIZE_CONTENT)
launcher_btn.align(lv.ALIGN.BOTTOM_LEFT,0,0)
launcher_label=lv.label(launcher_btn)
launcher_label.set_text(lv.SYMBOL.HOME+" Launcher")
launcher_label.center()
def launcher_event(e):
print("Launcher button pressed!")
global drawer_open
close_drawer(True)
show_launcher()
launcher_btn.add_event_cb(launcher_event,lv.EVENT.CLICKED,None)
#
restart_btn=lv.button(drawer)
restart_btn.set_size(lv.pct(40),lv.SIZE_CONTENT)
restart_btn.align(lv.ALIGN.RIGHT_MID,0,0)
restart_label=lv.label(restart_btn)
restart_label.set_text(lv.SYMBOL.POWER+" Reset")
restart_label.center()
restart_btn.add_event_cb(lambda event: machine.reset(),lv.EVENT.CLICKED,None)
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