def init_gui_fb(self):
import fb
fb.init()
if self.init_disp_drv(fb.flush, 480, 320):
print('Initialized Linux Frame Buffer device')
return True
else:
fb.deinit()
return False
# A simple test for Linux Frame Buffer
# Imports fb (frame buffer) module and uses it as lvgl display driver
# then show a button on screen.
import lvgl as lv
lv.init()
import fb
fb.init()
disp_buf1 = lv.disp_buf_t()
buf1_1 = bytes(480 * 10)
lv.disp_buf_init(disp_buf1, buf1_1, None, len(buf1_1) // 4)
disp_drv = lv.disp_drv_t()
lv.disp_drv_init(disp_drv)
disp_drv.buffer = disp_buf1
disp_drv.flush_cb = fb.flush
disp_drv.hor_res = 480
disp_drv.ver_res = 320
lv.disp_drv_register(disp_drv)
scr = lv.obj()
btn = lv.btn(scr)
btn.align(lv.scr_act(), lv.ALIGN.CENTER, 0, 0)
label = lv.label(btn)
label.set_text("Button")
# Load the screen
lv.scr_load(scr)
while True:
return obj.strftime("%Y.%m.%d %H:%M:%S")
else:
return super().default(obj)
app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = secrets.dburl
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
db = SQLAlchemy(app)
app.json_encoder = DecEncoder
print("SQLAlchemy version", sqlalchemy.__version__)
meta = MetaData()
meta.reflect(bind=db.engine)
dbtables = meta.tables
fb.init(app)
id2sharedKey = {} # id -> secretKey
id2loginDate = {} # id -> datetime
id2username = {} # id -> username
# for tablename in dbtables.keys():
# dbtable = dbtables[tablename]
# for column in dbtable.columns:
# print(tablename, column.name, column.type)
def expiration(id2):
loggedIn = id2loginDate[id2]
now = datetime.now()
diff = int((now - loggedIn).total_seconds())